Genes Previously Linked to Heart Condition Disputed – Clinical OMICs News

A new analysis of available data has convinced a panel genomic experts that nine genes previously believed to be associated with a rare, genetic heart conditionlong QT syndromewere an erroneously linked to the condition, as revealed in a new study funded by the National Human Genome Research Institute (NHGRI), a division of the National Institutes of Health (NIH).

Geneticists and heart specialists around the world had previously reported 17 genes to cause long QT syndrome. However, the Clinical Genome Resources (ClinGen) expert panel has critically reevaluated the scientific evidence for all 17 reported genes, and has concluded at least nine of the genes cannot be linked to the disease, and only three of the genes can be definitively associated with the most common form of the disease.

Long QT syndrome is caused by mutations in genes that regulate the hearts electrical activity. These mutations can cause the heart to have sudden, irregular heart rhythms, or arrhythmias. People with long QT syndrome can have arrythmias that are both unprovoked or as a result of stress and exercise. These arrythmias can be fatal.

Many people with long QT syndrome may be unaware they have the condition, unless they get an unrelated electrocardiogram, know their family history, and have undergone genetic testing.

Ever since the syndrome was described in 1957, researchers have engaged in a genetic race to identify the genes associated with it, which currently includes the 17 genes. By using such a standardized, evidence-based framework, the international ClinGen panel experts on long QT syndrome were able to classify the 17 genes into specific groups.

Three genes, KCNQ1, KCNH2 and SCN5A, had sufficient evidence to be implicated as definitive genetic causes for typical long QT syndrome. Four other genes had strong or definitive evidence supporting their role in causing atypical forms of long QT syndrome, particularly if they presented in the newborn period with associated heart block, seizures or delays in development.

The remaining ten genes were deemed to not have sufficient evidence to support a causal role in the syndrome. In fact, nine of these 10 remaining genes were placed in the limited or disputed category. The study authors suggest that these genes not be routinely tested in clinical settings when evaluating patients and families with long QT syndrome, because they lack sufficient scientific evidence as a cause for the condition.

This removal of genes from the testing list impacts genetic testing providers, who use research papers to determine which genes to include in their testing panels for diagnostic reporting to physicians. Published papers reporting gene-disease associations vary widely in their study design and strength of evidence to support their conclusions. Until recently, standard guidelines that can differentiate between genes found with strong and valid scientific approaches versus those with insufficient evidence did not exist. Clearly, this is a problematic approach, and led to several studies drawing early conclusions.

ClinGens expert panels include researchers, clinicians, and genetic counselors who apply an evidence-based framework in evaluating the available data from research papers to place gene-disease relationships into definitive, strong, moderate, limited, disputed, or refuted categories.

ClinGen is an impressive community effort. With over 1,000 researchers and clinicians from 30 countries volunteering their time and expertise, ClinGen is providing much needed clarity for the clinical genomics community regarding which gene-disease pairs have sufficient evidence to be used clinically, said Erin Ramos, Ph.D., project scientist for ClinGen and program director in the Division of Genomic Medicine at NHGRI.

Our study highlights the need to take a step back and to critically evaluate the level of evidence for all reported gene-disease associations, especially when applying genetic testing for diagnostic purposes in our patients. Testing genes with insufficient evidence to support disease causation only creates a risk of inappropriately interpreting the genetic information and leading to patient harm, says Michael Gollob, M.D., senior author of the paper and researcher at the Toronto General Hospital Research Institute.

Moreover, testing for genes not definitively associated with long QT syndrome can result in inappropriate and costly medical interventions such as implanting of a cardioverter-defibrillator.

This is not the first time a team at ClinGen has clarified published research for clinicians. The same team of researchers published a similar study in 2018, covering another heart condition called Brugada syndrome. In 2019, the American Society of Human Genetics considered the paper as one of the top 10 advances in genomic medicine.

ClinGen is an NHGRI-funded resource created to define the clinical relevance and validity of genes associated with various genetic disorders. It comprises more than 20 expert panels working on a variety of genetically influenced diseases, ensuring the reliability of gene-disease linkage. This work is also instrumental in determining which specific genes should be targeted for further study in precision medicine and research.

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Genes Previously Linked to Heart Condition Disputed - Clinical OMICs News

MaxQ AI Partners with Arterys to Further Expand Global Access to the Company’s Innovative Intracranial Hemorrhage (ICH) Detection Solutions – BioSpace

Radiologists and care providers around the world will have access to MaxQ AIs ACCIPIO ICH and Stroke Platform through Arterys cloud-native medical imaging platform.

Tel Aviv, Israel and San Francisco, CA November 13, 2019 MaxQ AI, the industry-leading medical diagnostic AI company, today announced a new partnership agreement with Arterys, the leader in web-based, AI-powered medical image analysis platform. As part of the agreement, MaxQ AIs ACCIPIO ICH and Stroke Platform, which utilizes deep learning technologies to analyze medical imaging data such as non-contrast head CT images, will be available on the Arterys Marketplace. An internet-based medical imaging AI platform for radiology, care providers will have easy access to both MaxQ AIs FDA Cleared and CE Approved Accipio Ix and Accipio Ax intracranial hemorrhage (ICH) detection software through the Arterys Marketplace along with future solutions in development for investigational use.

The Arterys Marketplace further expands access to our extensive suite of AI-powered solutions to radiologists through a user-friendly and collaborative platform, said Gene Saragnese, CEO of MaxQ AI. This collaboration will help meet the growing demand for AI-powered diagnostic solutions that augment radiologists in acute care settings worldwide. Our Accipio ICH detection solutions for stroke, TBI, and head trauma hold great promise for healthcare through significant quality, clinical, and economic advancement in supporting care providers to make the correct minutes matter call.

MaxQ AIs ACCIPIO ICH and Stroke Platform provide deep clinical insight and actionable data in minutes that will enable physicians across the world to make faster assessments of stroke, traumatic brain injury, and head trauma in any location, at any time. Accipio Ix enables automatic identification and prioritization of non-contrast head CT images with suspected ICH. Accipio Ax provides automatic slice-level annotation of suspected ICH. Both Accipio Ix and Ax are FDA Cleared and CE Approved. The Accipio platform is comprised of Class II and Class III medical devices with significant clinical evidence.

The Arterys Marketplace provides radiologists with high-performance medical imaging viewing, AI-based analysis for interpretation, and collaborative case sharing all through a web browser. The Marketplace also enables AI software developers and innovators to seamlessly distribute both FDA-cleared clinical applications and earlier-stage AI innovations (for research use only) to clinical environments. The Marketplace offers clinical applications for the analysis of cardiac MR, lung CT, and chest x-ray images and now non-contrast head CT images due to the partnership with MaxQ AI. Arterys is compliant with patient data privacy regulations and standards, ensuring security in the cloud, and its products are cleared for commercial sale in over 100 countries.

We are excited to have MaxQ AI join the Arterys Marketplace, which was created to expand access to and drive AI-powered innovations in healthcare, said John Axerio-Cilies, Chief Technology Officer & Founder of Arterys. MaxQ AI shares our commitment to advance healthcare for everyone, and its powerful and proven Accipio solutions and algorithms will further expand our offerings to the latest cutting-edge AI-driven solutions that are designed to reduce variability and subjectivity in clinical diagnoses and alleviate the burden of growing workloads faced by radiologists.

MaxQ AI will demonstrate the companys full suite of Accipio solutions during the upcoming Radiological Society of North America (RSNA) 2019 Annual Meeting in Chicago (Booth 8345 in the North Hall). MaxQ AI will be highlighted as an Arterys partner at the Arterys exhibit in the AI Showcase (Booth 10918 in the North Hall Level 2).

About MaxQ AI, Ltd.

MaxQ AI is at the forefront of Medical Diagnostic AI. We are transforming healthcare by empowering physicians to provide smarter care with artificial intelligence (AI) clinical insights. Based in Tel Aviv, Israel and Andover, MA, USA, our team of deep learning and machine vision experts develop innovative software that uses AI to interpret medical images and surrounding patient data. Working with world-class clinical and industry partners, our software enables physicians to make faster, more accurate decisions when diagnosing stroke, traumatic brain injury, and other serious conditions. To learn more, visit http://www.maxq.ai or follow us on Twitter and LinkedIn.

About Arterys, Inc.

Arterys was founded in 2011 to facilitate the global advancement of healthcare and enable insight-driven medicine by leveraging cloud computation and artificial intelligence. Its first major milestone was the first-ever clearance of cloud-based deep learning software for clinical use. Arterys offers a suite of applications for clinicians on the Arterys network via its cloud-based, web-enabled AI medical imaging platform. The Arterys enterprise imaging platform enables use and interaction with deep learning algorithms in real-time, augmenting the clinician workflow, and expediting image interpretation.

The companys mission is to reduce variability and subjectivity in clinical diagnoses and alleviate the enormous workloads radiologists face. With AI, the company is improving the accuracy and consistency in imaging interpretation across practices. Arterys is now leveraging its medical imaging cloud platform to make medical imaging vastly more automated, quantitative and useful. Learn more at https://www.arterys.com/ or follow Arterys on Twitter @ArterysInc and LinkedIn https://www.linkedin.com/company/arterys/.

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MaxQ AI Partners with Arterys to Further Expand Global Access to the Company's Innovative Intracranial Hemorrhage (ICH) Detection Solutions - BioSpace

CRISPR Used to Silence Crucial Hepatitis B Gene – Medscape

The CRISPR gene-editing tool can be used to silence an important hepatitisB virus gene, a proof-of-concept invitro study suggests.

"It's the first time we've seen CRISPR editing done in a hepatitisB model," said Douglas Dieterich, MD, director of the Institute of Liver Medicine and professor of medicine at the Icahn School of Medicine at Mount Sinai in New York City.

HepatitisB can lead to liver disease and is the primary cause of hepatocellular carcinoma. In 2015, more than 250million people around the world were infected with the virus, according to the World Health Organization.

For their study, investigator Hao Zhou, from The First Hospital of Jilin University in China and the Department of Medicine at the University of Minnesota in Minneapolis, and colleagues targeted the Sgene. Zhou presented the findings at the Liver Meeting 2019 in Boston.

The Sgene gives rise to the hepatitisB surface antigen, the presence of which indicates that a person is infected with the virus. "The question is whether it's the right target," Dieterich told Medscape Medical News.

Reducing the amount of the hepatitisB surface antigen is a "good idea" because that's what is believed to inhibit the immune system from clearing the virus. Doing so might help the immune system recover and clear the virus, "with a little help from some antivirals," explained Dieterich, who was not involved in the study.

However, "the surface is not the only DNA that's integrated into the host genome," he pointed out. "I think maybe a broader application might be necessary to actually get the hepatitisB genome out of the hepatocytes."

Zhou's team used a newer CRISPR approach, called CRISPR-STOP, for their gene-editing procedure.

"The idea is that CRISPR-STOP can be as efficient as standard CRISPR editing, but it's safer," said Kiran Musunuru, MD, PhD, associate professor of cardiovascular medicine and genetics at Penn Medicine in Philadelphia, who was not involved in the study. Musunuru is cofounder of and senior scientific advisor at Verve Therapeutics, a company using gene editing to prevent cardiovascular disease.

The standard CRISPR-Cas9 approach requires a double-strand break in the genome, and the problem with that is it introduces the possibility for "mischief," he explained. "If you have more than one double-strand break occurring in the human genome at the same time, you have the potential for different parts of different chromosomes coming together in the wrong ways and then causing problems."

Instead of creating a double-strand break, CRISPR-STOP uses a base editor to chemically modify the DNA base from one base to another and introduce a stop codon into the target gene sequence, effectively hamstringing the ability of the target gene to produce a functional protein.

This is a very nice, clean way to turn off a gene effectively.

"This is a very nice, clean way to turn off a gene effectively," Musunuru told Medscape Medical News.

For their CRISPR-STOP procedure, Zhou's team first transduced liver cells infected with the hepatitisB virus using a base editor called AncBE4max. Next, to activate the base editor so that gene editing could begin, they transduced the cells with one of two lentivectors: one encoded for single-guide RNA that targets the Sgene; and an empty one, which served as the control.

With the gene-editing approach, 71% of the liver cells that expressed the base editor gained the desired stop codon in the target gene.

"That's a very robust number," said Musunuru.

In addition, hepatitisB surface antigen secretion was reduced by 92% with the gene-editing approach.

The investigators report a high degree of conservativity for hepatitisB genotypesB, C, F, and H. Specifically, 94% of the Sgene sequence was conserved for genotypeB, 92% for genotypeC, 91% for genotypeF, and 71% for genotypeH.

The Liver Meeting 2019: American Association for the Study of Liver Diseases (AASLD): Abstract86. Presented November10, 2019.

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Stoke Therapeutics to Present New Preclinical Data on STK-001 at the American Epilepsy Society Annual Meeting – Business Wire

BEDFORD, Mass.--(BUSINESS WIRE)--Stoke Therapeutics, Inc. (Nasdaq: STOK), a biotechnology company pioneering a new way to treat the underlying cause of severe genetic diseases by precisely upregulating protein expression, today announced that it will present new preclinical data on STK-001, a potential new disease-modifying medicine for the treatment of Dravet syndrome, at the American Epilepsy Society (AES) Annual Meeting, taking place December 6-10, 2019 in Baltimore.

Data will be presented from preclinical studies demonstrating the effects of STK-001, a proprietary antisense oligonucleotide (ASO), in the Scn1a-linked Dravet syndrome mouse model and in non-human primates. New results of EEG recordings used to measure the frequency of seizures in Dravet syndrome mice treated with STK-001 compared to placebo will be presented, as well as data on STK-001 biodistribution, target engagement, pharmacodynamics, safety and tolerability in non-human primates.

Dravet syndrome is a severe and progressive form of genetic epilepsy that affects approximately 35,000 people in the United States, Canada, Japan, Germany, France and the United Kingdom. Approximately 85% of Dravet syndrome cases are caused by spontaneous, heterozygous loss of function mutations in the SCN1A gene, resulting in 50% Nav1.1 protein expression.

These data support our belief that by restoring the Nav1.1 protein to physiological levels, STK-001 has the potential to provide a gene-specific, disease-modifying therapy for people living with Dravet syndrome, said Edward M. Kaye, M.D., Chief Executive Officer of Stoke Therapeutics. We look forward to continuing to advance STK-001 toward the clinic and, in the meantime, to sharing and discussing these important new data with the Dravet community at AES.

Details on the presentations are as follows:

Presentation Title: Targeted Augmentation of Nuclear Gene Output (TANGO) of SCN1A Prevents SUDEP in a Mouse Model of Dravet SyndromeSession Date & Time: Saturday, December 7, 2019, 12:00 p.m. 6:00 p.m. ETSession Title: Poster Session 1Presenter: Lori Isom, Ph.D., Maurice H. Seevers Professor and Chair of Pharmacology, University of Michigan Medical SchoolPoster Number: 1.116Location: The Baltimore Convention Center, Hall E

Presentation Title: TANGO Oligonucleotides for the Treatment of Dravet Syndrome: Safety, Biodistribution and Pharmacology in the Non-Human PrimateSession Date & Time: Sunday, December 8, 2019, 10:00 a.m. 4:00 p.m. ETSession Title: Poster Session 2Presenter: Anne Christiansen, Ph.D., Associate Director, Neuroscience, Stoke TherapeuticsPoster Number: 2.195Location: The Baltimore Convention Center, Hall E

The abstracts for these presentations are now available online on the Events and Presentations section of Stokes website at https://investor.stoketherapeutics.com/ or through the AES 2019 Annual Meeting mobile application.

About STK-001

STK-001 is an investigational new medicine for the treatment of Dravet syndrome. Stoke believes that STK-001, a proprietary antisense oligonucleotide (ASO), has the potential to be the first disease-modifying therapy to address the genetic cause of Dravet syndrome. STK-001 is designed to upregulate NaV1.1 protein expression by leveraging the non-mutant (wild-type) copy of the SCN1A gene to restore physiological NaV1.1 levels, thereby reducing both occurrence of seizures and significant non-seizure comorbidities. Stoke has generated preclinical data demonstrating proof-of-mechanism for STK-001. STK-001 has been granted orphan drug designation by the U.S. Food and Drug Administration as a potential new treatment for Dravet syndrome.

About Dravet Syndrome

Dravet syndrome is a severe and progressive genetic epilepsy characterized by frequent, prolonged and refractory seizures, beginning within the first year of life. Dravet syndrome is difficult to treat and has a poor long-term prognosis. Complications of the disease often contribute to a poor quality of life for patients and their caregivers. The effects of the disease go beyond seizures and often include cognitive regression or developmental stagnation, ataxia, speech impairment and sleep disturbances. Compared with the general epilepsy population, people living with Dravet syndrome have a higher risk of sudden unexpected death in epilepsy, or SUDEP. Dravet syndrome affects approximately 35,000 people in the United States, Canada, Japan, Germany, France and the United Kingdom, and it is not concentrated in a particular geographic area or ethnic group.

About Stoke Therapeutics

Stoke Therapeutics, Inc. (Nasdaq: STOK), is a biotechnology company pioneering a new way to treat the underlying causes of severe genetic diseases by precisely upregulating protein expression to restore target proteins to near normal levels. Stoke aims to develop the first precision medicine platform to target the underlying cause of a broad spectrum of genetic diseases in which the patient has one healthy copy of a gene and one mutated copy that fails to produce a protein essential to health. These diseases, in which loss of approximately 50% of normal protein expression causes disease, are called autosomal dominant haploinsufficiencies. The companys lead investigational new medicine is STK-001, a proprietary antisense oligonucleotide (ASO) that has the potential to be the first disease-modifying therapy to address the genetic cause of Dravet syndrome, a severe and progressive genetic epilepsy. Stoke is headquartered in Bedford, Massachusetts with offices in Cambridge, Massachusetts. For more information, visit https://www.stoketherapeutics.com/ or follow the company on Twitter at @StokeTx.

Forward-Looking Statements

This press release contains forward-looking statements within the meaning of the safe harbor provisions of the Private Securities Litigation Reform Act of 1995, including, but not limited to: Stokes ability to use study data to advance the development of STK-001; the ability of STK-001 to treat the underlying causes of Dravet syndrome; and the ability of TANGO to design medicines to increase protein production. Statements including words such as plan, continue, expect, or ongoing and statements in the future tense are forward-looking statements. These forward-looking statements involve risks and uncertainties, as well as assumptions, which, if they do not fully materialize or prove incorrect, could cause our results to differ materially from those expressed or implied by such forward-looking statements. Forward-looking statements are subject to risks and uncertainties that may cause Stokes actual activities or results to differ significantly from those expressed in any forward-looking statement, including risks and uncertainties related to the companys ability to develop, obtain regulatory approval for and commercialize STK-001 and its future product candidates, the timing and results of preclinical studies and clinical trials, the companys ability to protect intellectual property; and other risks set forth in our filings with the Securities and Exchange Commission, including the risks set forth in our quarterly report on Form 10-Q for the quarter and nine months ended September 30, 2019. These forward-looking statements speak only as of the date hereof and Stoke specifically disclaims any obligation to update these forward-looking statements or reasons why actual results might differ, whether as a result of new information, future events or otherwise, except as required by law.

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Stoke Therapeutics to Present New Preclinical Data on STK-001 at the American Epilepsy Society Annual Meeting - Business Wire

Your hatred of heart-healthy veggies could be genetic – WTVR CBS 6 News

If certain vegetables have always made you gag, you may be more than a picky eater. Instead, you might be what scientists call a super-taster: a person with a genetic predisposition to taste food differently.

Unfortunately, being a super-taster doesnt make everything taste better. In fact, it can do the opposite.

Super-tasters are extremely sensitive to bitterness, a common characteristic of many dark green, leafy veggies such as broccoli, cauliflower, cabbage and Brussels sprouts, to name a few.

The person who has that genetic propensity gets more of the sulfur flavor of, say, Brussels sprouts, especially if theyve been overcooked, said University of Connecticut professor Valerie Duffy, an expert in the study of food taste, preference and consumption.

So that [bitter] vegetable is disliked, and because people generalize, soon all vegetables are disliked, Duffy said. If you ask people, Do you like vegetables? They dont usually say, Oh yeah, I dont like this, but I like these others. People tend to either like vegetables or not.

In fact, people with the bitter gene are 2.6 times more likely to eat fewer vegetables than people who do not have that gene, according to a new study presented Monday at the annual meeting of the American Heart Association.

We wanted to know if genetics affected the ability of people who need to eat heart-healthy foods from eating them, said study author Jennifer Smith, a registered nurse who is a postdoc in cardiovascular science at the University of Kentucky School of Medicine.

While we didnt see results in gene type for sodium, sugar or saturated fat, we did see a difference in vegetables, Smith said, adding that people with the gene tasted a ruin-your-day level of bitterness.

Our sense of taste relies on much more than a gene or two. Receptors on our taste buds are primed to respond to five basic flavors: salty, sweet, sour, bitter and umami, which is a savory flavor created by an amino acid called glutamate (think of mushrooms, soy sauce, broth and aged cheeses).

But its also smelling through the mouth and the touch, texture and temperature of the food, Duffy said. Its very difficult to separate out taste from the rest. So when any of us say the food tastes good, its a composite sensation that were reacting to.

Even our saliva can enter the mix, creating unique ways to experience food.

When we come to the table, we dont perceive the food flavor or the taste of food equally, Duffy said. Some people live in a pastel food world versus others who might live in a more vibrant, neon food world. It could explain some of the differences in our food preference.

While there are more than 25 different taste receptors in our mouth, one in particular has been highly researched: the TAS2R38, which has two variants called AVI and PAV.

About 50% of us inherent one of each, and while we can taste bitter and sweet, we are not especially sensitive to bitter foods.

Another 25% of us are called non-tasters because we received two copies of AVI. Non-tasters arent at all sensitive to bitterness; in fact food might actually be perceived as a bit sweeter.

The last 25% of us have two copies of PAV, which creates the extreme sensitivity to the bitterness some plants develop to keep animals from eating them.

When it comes to bitterness in the veggie family, the worst offenders tend to be cruciferous vegetables, such as broccoli, kale, bok choy, arugula, watercress, collards and cauliflower.

Thats too bad, because they are also full of fiber, low in calories and are nutrient powerhouses. Theyre packed with vitamins A and C and whats called phytonutrients, which are compounds that may help to lower inflammation.

Rejecting cruciferous or any type of vegetable is a problem for the growing waistline and health of America.

As we age as a population, vegetables are very important for helping us maintain our weight, providing all those wonderful nutrients to help us maintain our immune system and lower inflammation to prevent cancer, heart disease and more, Duffy said.

Food scientists are trying to develop ways to reduce the bitterness in veggies, in the hopes we can keep another generation of super-tasters from rejecting vegetables.

Theres been some success. In fact, the Brussels sprouts we eat today are much sweeter than those our parents or grandparents ate. Dutch growers in the 90s searched their seed archives for older, less bitter varieties, then cross-pollinated them with todays higher-yielding varieties.

People who already reject vegetables might try to use various cooking methods that can mask the bitter taste.

Just because somebody carries the two copies of the bitter gene doesnt mean that they cant enjoy vegetables, Duffy said. Cooking techniques such as adding a little fat, a little bit of sweetness, strong flavors like garlic or roasting them in the oven, which brings out natural sweetness, can all enhance the overall flavor or taste of the vegetable and block the bitterness.

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Your hatred of heart-healthy veggies could be genetic - WTVR CBS 6 News

What is ‘IndiGen’ project that is sequencing Indian genes? – The Hindu

The story so far: The Council of Scientific and Industrial Research (CSIR) recently announced the conclusion of a six-month exercise (from April 2019) of conducting a whole-genome sequence of a 1,008 Indians. The project is part of a programme called IndiGen and is also seen as a precursor to a much larger exercise involving other government departments to map a larger swathe of the population in the country. Project proponents say this will widen public understanding in India about genomes and the information that genes hide about ones susceptibility to disease.

A genome is the DNA, or sequence of genes, in a cell. Most of the DNA is in the nucleus and intricately coiled into a structure called the chromosome. The rest is in the mitochondria, the cells powerhouse. Every human cell contains a pair of chromosomes, each of which has three billion base pairs or one of four molecules that pair in precise ways. The order of base pairs and varying lengths of these sequences constitute the genes, which are responsible for making amino acids, proteins and, thereby, everything that is necessary for the body to function. It is when these genes are altered or mutated that proteins sometimes do not function as intended, leading to disease.

Sequencing a genome means deciphering the exact order of base pairs in an individual. This deciphering or reading of the genome is what sequencing is all about. Costs of sequencing differ based on the methods employed to do the reading or the accuracy stressed upon in decoding the genome. Since an initial rough draft of the human genome was made available in 2000, the cost of generating a fairly accurate draft of any individual genome has fallen to a tenth, or to a ball park figure of around $1,000 (70,000 approximately). It has been known that the portion of the genes responsible for making proteins called the exome occupies about 1% of the actual gene. Rather than sequence the whole gene, many geneticists rely on exome maps (that is the order of exomes necessary to make proteins). However, it has been established that the non-exome portions also affect the functioning of the genes and that, ideally, to know which genes of a persons DNA are mutated the genome has to be mapped in its entirety. While India, led by the CSIR, first sequenced an Indian genome in 2009, it is only now that the organisations laboratories have been able to scale up whole-genome sequencing and offer them to the public.

Under IndiGen, the CSIR drafted about 1,000 youth from across India by organising camps in several colleges and educating attendees on genomics and the role of genes in disease. Some students and participants donated blood samples from where their DNA sequences were collected.

Globally, many countries have undertaken genome sequencing of a sample of their citizens to determine unique genetic traits, susceptibility (and resilience) to disease. This is the first time that such a large sample of Indians will be recruited for a detailed study. The project ties in with a much larger programme funded by the Department of Biotechnology to sequence at least 10,000 Indian genomes. The CSIRs IndiGen project, as it is called, selected the 1,000-odd from a pool of about 5,000 and sought to include representatives from every State and diverse ethnicities. Every person whose genomes are sequenced would be given a report. The participants would be informed if they carry gene variants that make them less responsive to certain classes of medicines. For instance, having a certain gene makes some people less responsive to clopidogrel, a key drug that prevents strokes and heart attack. The project involved the Hyderabad-based Centre for Cellular and Molecular Biology (CCMB), the CSIR-Institute of Genomics and Integrative Biology (IGIB), and cost 18 crore.

Anyone looking for a free mapping of their entire genome can sign up for IndiGen. Those who get their genes mapped will get a card and access to an app which will allow them and doctors to access information on whether they harbour gene variants that are reliably known to correlate with genomes with diseases. However, there is no guarantee of a slot, as the scientists involved in the exercise say there is already a backlog. The project is free in so far as the CSIR scientists have a certain amount of money at their disposal. The driving motive of the project is to understand the extent of genetic variation in Indians, and learn why some genes linked to certain diseases based on publications in international literature do not always translate into disease. Once such knowledge is established, the CSIR expects to tie up with several pathology laboratories who can offer commercial gene testing services.

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What is 'IndiGen' project that is sequencing Indian genes? - The Hindu

The Europe next generation sequencing market is expected to reach US$ 7,685.4 Mn in 2025 from US$ 1,633.4 Mn in 2017 – GlobeNewswire

New York, Nov. 12, 2019 (GLOBE NEWSWIRE) -- Reportlinker.com announces the release of the report "Europe Next Generation Sequencing Market to 2025 - Regional Analysis and Forecasts by Product; Service; Application; & End User, and Country" - https://www.reportlinker.com/p05794719/?utm_source=GNW However, nonexistence of skilled professionals and high risks associated with genetic data.

On the other hand, an extensive use of genomics for medical applications is likely to have a positive impact on the growth of the Europe next generation sequencing market in the coming years.The genomics is comprised of various technologies such next generation sequencing (NGS), genome editing, gene synthesis and more.These technologies have been utilized for achieving various discoveries for the betterment of the health conditions across the living organisms.

The next generation sequencing is widely used in the field of the medical to understand the genetic composition of the patients.The use of NGS has been utilized for the alteration of plants and animals for the desired physical and genetic changes.

The technology is used to produce biomarkers.The biomarkers are widely used in clinical research and clinical practice.

NGS is among the important developments in genomic technologies, the technology is used for the discovery of oncogenic biomarker and diagnostics. NGS enables in discovery of biomarker and identifying the genetic diseases. In addition, the NGS is used for the developing precision medicine for individuals genomic information to offer targeted treatment to the individual. NGS have capability of sequencing large sections of a persons genome in very short period of time and can also aid in formulation of precision medicine. Next generation sequencing technology is among the major driver of precision medicine and has improved its accuracy, speed, and cost. Developments in whole genome sequencing has enabled the identification of genes required in the large number of diseases, and biomarkers that indicate disease severity to treatment are gradually being characterized. Therefore, the use of the NGS for the discovery of biomarker have benefited for the early diagnosis and differentiating in disease types. Likewise, precision medicine enables in treatment of the diseases NGS plays significant role for both the application by creating an array of opportunities in future.In 2017, the consumables segment held a largest market share of 64.0% of the next generation sequencing market, by product. The segment is growing due to the consumables offered by various companies are widely accepted by the consumers and it provides accuracy and precision in the preparation of the NGS. Furthermore, the similar segment is anticipated to witness the fastest growth rate during the forecast period, 2018 to 2025.In 2017, the resequencing segment held a largest market share of 66.0% of the next generation sequencing market, by technology. This segment is also expected to dominate the market in 2025 as the rising funding by various government bodies and usage of NGS in the resequencing and targeted sequencing. Furthermore, the genome sequencing segment is anticipated to witness the fastest growth rate during the forecast period, 2018 to 2025.Diagnostics segment is anticipated to grow at a CAGR of 22.0% during the forecast period owing to the growth of the technological advancements such as sequencing machines in the developed and developing regions. Moreover, the similar segment held the largest market share of 34.0% for the application segment in the next generation sequencing market and is likely to dominate the market in coming forecast period.In 2017, the academic & research institutes segment held a largest market share of 45.2% of the next generation sequencing market, by end user. This segment is also expected to dominate the market in 2025. Moreover, the similar segment is anticipated to witness the fastest growth rate of 21.9% during the forecast period, 2017 to 2025. This higher growth rate of the segment owing to the providing the references for further researches are likely to propel the growth of the research centers segment in the coming future.Some of the major primary and secondary sources for next generation sequencing included in the report are, Non-Invasive Prenatal Testing (NIPT), Food and Drug Administration (FDA), Developing an European - American NGS Network (DEANN), Foreign Direct Investment (FDI) and among others.Read the full report: https://www.reportlinker.com/p05794719/?utm_source=GNW

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The Europe next generation sequencing market is expected to reach US$ 7,685.4 Mn in 2025 from US$ 1,633.4 Mn in 2017 - GlobeNewswire

MTHFR gene – Genetics Home Reference

Bhargava S, Ali A, Parakh R, Saxena R, Srivastava LM. Higher incidence of C677T polymorphism of the MTHFR gene in North Indian patients with vascular disease. Vascular. 2012 Apr;20(2):88-95. doi: 10.1258/vasc.2011.oa0320. Epub 2012 Feb 28.

Botto LD, Yang Q. 5,10-Methylenetetrahydrofolate reductase gene variants and congenital anomalies: a HuGE review. Am J Epidemiol. 2000 May 1;151(9):862-77. Review.

Khandanpour N, Willis G, Meyer FJ, Armon MP, Loke YK, Wright AJ, Finglas PM, Jennings BA. Peripheral arterial disease and methylenetetrahydrofolate reductase (MTHFR) C677T mutations: A case-control study and meta-analysis. J Vasc Surg. 2009 Mar;49(3):711-8. doi: 10.1016/j.jvs.2008.10.004. Epub 2009 Jan 21. Review.

Kumar A, Kumar P, Prasad M, Sagar R, Yadav AK, Pandit AK, Jali VP, Pathak A. Association of C677T polymorphism in the methylenetetrahydrofolate reductase gene (MTHFR gene) with ischemic stroke: a meta-analysis. Neurol Res. 2015 Jul;37(7):568-77. doi: 10.1179/1743132815Y.0000000008. Epub 2015 Jan 16.

Moll S, Varga EA. Homocysteine and MTHFR Mutations. Circulation. 2015 Jul 7;132(1):e6-9. doi: 10.1161/CIRCULATIONAHA.114.013311. Review.

Sibani S, Christensen B, O'Ferrall E, Saadi I, Hiou-Tim F, Rosenblatt DS, Rozen R. Characterization of six novel mutations in the methylenetetrahydrofolate reductase (MTHFR) gene in patients with homocystinuria. Hum Mutat. 2000;15(3):280-7.

Trabetti E. Homocysteine, MTHFR gene polymorphisms, and cardio-cerebrovascular risk. J Appl Genet. 2008;49(3):267-82. doi: 10.1007/BF03195624. Review.

Trimmer EE. Methylenetetrahydrofolate reductase: biochemical characterization and medical significance. Curr Pharm Des. 2013;19(14):2574-93. Review.

Urreizti R, Moya-Garca AA, Pino-ngeles A, Cozar M, Langkilde A, Fanhoe U, Esteves C, Arribas J, Vilaseca MA, Prez-Dueas B, Pineda M, Gonzlez V, Artuch R, Baldellou A, Vilarinho L, Fowler B, Ribes A, Snchez-Jimnez F, Grinberg D, Balcells S. Molecular characterization of five patients with homocystinuria due to severe methylenetetrahydrofolate reductase deficiency. Clin Genet. 2010 Nov;78(5):441-8. doi: 10.1111/j.1399-0004.2010.01391.x.

Xie SZ, Liu ZZ, Yu JH, Liu L, Wang W, Xie DL, Qin JB. Association between the MTHFR C677T polymorphism and risk of cancer: evidence from 446 case-control studies. Tumour Biol. 2015 Nov;36(11):8953-72. doi: 10.1007/s13277-015-3648-z. Epub 2015 Jun 17.

Yadav U, Kumar P, Yadav SK, Mishra OP, Rai V. "Polymorphisms in folate metabolism genes as maternal risk factor for neural tube defects: an updated meta-analysis". Metab Brain Dis. 2015 Feb;30(1):7-24. doi: 10.1007/s11011-014-9575-7. Epub 2014 Jul 9. Review.

Yan L, Zhao L, Long Y, Zou P, Ji G, Gu A, Zhao P. Association of the maternal MTHFR C677T polymorphism with susceptibility to neural tube defects in offsprings: evidence from 25 case-control studies. PLoS One. 2012;7(10):e41689. doi: 10.1371/journal.pone.0041689. Epub 2012 Oct 3.

Zhang T, Lou J, Zhong R, Wu J, Zou L, Sun Y, Lu X, Liu L, Miao X, Xiong G. Genetic variants in the folate pathway and the risk of neural tube defects: a meta-analysis of the published literature. PLoS One. 2013 Apr 4;8(4):e59570. doi: 10.1371/journal.pone.0059570. Print 2013.

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MTHFR gene - Genetics Home Reference

Gene Genie | The blog carnival of genes and genetic conditions

February 2, 2009 by Dr. Bertalan Mesk

The 43rd edition is up at Pharmamotion. A great compilation of articles and blogposts about human genetics and personalized medicine. Thank you, Flavio Guzman, for hosting Gene Genie.

Dont forget to submit your articles via e-mail (berci.mesko at gmail.com).

Let me know if you would like to host an edition.

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January 19, 2009 by Dr. Bertalan Mesk

The 42nd edition is up at Genetic Future. A great compilation of articles and blogposts about human genetics and personalized medicine. Thank you, Daniel MacArthur, for hosting Gene Genie.

Dont forget to submit your articles via e-mail (berci.mesko at gmail.com).

Let me know if you would like to host an edition.

Posted in Gene Genie | 4 Comments

December 14, 2008 by Dr. Bertalan Mesk

The 41st edition is up at Scienceroll under the edition name Carnivalome. Check out the latest news and blogposts about clinical genetics and personalized medicine.

If you want to host an issue of Gene Genie in 2009, let me know (berci.mesko [at] gmail.com). Dont forget to submit your articles (berci.mesko [at] gmail.com).

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November 19, 2008 by Dr. Bertalan Mesk

The 40th edition is up at Human Genetics Disorders. A great compilation of articles and blogposts about human genetics and personalized medicine. Thank you, Chavonne Jones, for hosting Gene Genie.

Posted in Gene Genie | 1 Comment

October 28, 2008 by Dr. Bertalan Mesk

The 39th edition is up at Genetics & Health. A great compilation of articles and blogposts about human genetics and personalized medicine. Thank you, Grace Ibay, for hosting Gene Genie.

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October 12, 2008 by Dr. Bertalan Mesk

The 38th edition is up at Scienceroll. Check out the latest news and blogposts about clinical genetics and personalized medicine.

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September 16, 2008 by Dr. Bertalan Mesk

The 37th edition is up at The Genetic Genealogist. A great compilation of articles and blogposts about human genetics and personalized medicine. Thank you, Blaine Bettinger, for hosting Gene Genie.

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Gene Genie | The blog carnival of genes and genetic conditions

Gene Editing Pioneers Receive Americas Most Distinguished …

Gene Editing Pioneers Selected to Receive Americas Most Distinguished Prize in Medicine

August 15, 2017 - Albany, NY

For their roles in the creation of a remarkable gene editing system that has been called the discovery of the century, five researchers have been announced as the recipients of the Albany Medical Center Prize in Medicine and Biomedical Research for 2017. All five awardees have made important contributions to the development of CRISPR-Cas9, a gene engineering technology that harnesses a naturally occurring bacterial immune system process. The technology has revolutionized biomedical research and provided new hope for the treatment of genetic diseases and more. The awardees are:

The $500,000 award has been given annually since 2001 to those who have altered the course of medical research and is one of the largest prizes in medicine and science in the United States. It will be awarded on Wednesday, Sept. 27 during a celebration in Albany, New York.

The five recipients were chosen to receive the 2017 Albany Prize for their fundamental and complementary accomplishments related to CRISPR-Cas9. CRISPR is an acronym for clustered regularly interspaced short palindromic repeats, a DNA sequence found in the immune system of simple bacterial organisms.

The discovery of these CRISPR sequences in bacteria in the laboratory was the key to the later development of gene editing technology called CRISPR-Cas9 that has allowed scientists to easily and efficiently edit genes by splicing out and replacing or altering sections of DNA in the cells of any organism, including humans (though most current research uses isolated human cells in labs and animal models only). The editing technique has been compared to cutting and pasting words in a computer program.

CRISPR-Cas9 has revolutionized biological research in tens of thousands of laboratories worldwide. Its potential future applications include the possible ability to cure genetic defects such as muscular dystrophy, eradicate cancer, and allow for pig organs to safely be transplanted into humans. Its uses are so varied that CRISPR is being used to alter butterfly wing patterns and it could also someday help make crops hardier.

Though it cannot be used as a drug in patients yet, it is making a significant impact in the clinical world by accelerating drug research. Additionally, in laboratory experiments, CRISPR-Cas9 is being used to try to modify genes to block the HIV virus, and to attempt to change the DNA of mosquitos that carry the Zika virus so that it cannot be passed to humans.

Rarely has such a recent discovery transformed an entire field of research, as CRISPR has in biological research. Its implications for biological processes, including human health and disease are promising and quite profound, said Vincent Verdile, M.D. 84, the Lynne and Mark Groban, M.D. 69, Distinguished Dean of Albany Medical College and chair of the Albany Prize National Selection Committee. The Albany Prize recognizes that such a significant development in science is brought forth by a community of scientists, and, therefore, we felt it was appropriate to name a larger number of recipients than in the past.

CRISPR is an example of how science in the 21st century often works; as a remarkable ensemble act, in which a cast comes together to produce something that not one of them could do alone.

While most studies focus on gene editing in somatic (non-germline) cells, due to the profound ethical implications of modifying genes and impacting our species and environment, many CRISPR scientists, government representatives, ethicists and the general public are actively debating how we as a society ethically use the technology.

According to Dr. Verdile, the CRISPR story is a testament to the importance of basic biomedical research as the gateway to medical and scientific breakthroughs. The discovery of the CRISPR defense mechanism inside bacteria by basic scientists directly led to the development of the CRISPR gene editing system, which has promise for the treatment of disease.

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2017 Albany Prize Recipients

Emmanuelle Charpentier, Ph.D. Director, Department of Regulation in Infection Biology, Max Planck Institute for Infection Biology, BerlinVisiting Professor, Ume University, Sweden and Honorary Professor, Humboldt University

With her recent groundbreaking findings in the field of RNA-mediated regulation based on the CRISPR-Cas9 system, Dr. Charpentier laid the foundation for the development of the novel, highly versatile and precise genome engineering technology that has revolutionized life sciences research and opens new opportunities for the treatment of genetic disease.

She is co-inventor and co-owner of the fundamental intellectual property comprising the CRISPR-Cas9 technology, and co-founder of CRISPR Therapeutics and ERS Genomics, two companies that are developing the CRISPR-Cas9 genome engineering technology for biotechnological and biomedical applications.

Dr. Charpentier studied biochemistry, microbiology and genetics at the University Pierre and Marie Curie in Paris, and obtained her Ph.D. in microbiology for research performed at the Pasteur Institute in Paris. She continued her work at The Rockefeller University, New York University Langone Medical Center and the Skirball Institute of Biomolecular Medicine, all in New York City, and at St. Jude Childrens Research Hospital in Memphis.

She returned to Europe to establish a research group at the University of Vienna in Austria as assistant and associate professor. She was then appointed associate professor at the Laboratory for Molecular Infection Medicine Sweden at Ume University in Sweden where she is still a visiting professor.

In 2013, she was awarded an Alexander von Humboldt Professorship. She served as the head of the Department of Regulation in Infection Biology at the Helmholtz Centre for Infection Research in Braunschweig and professor at the Medical School of Hannover, Germany. In 2015, she was appointed scientific member of the Max Planck Society and director at the Max Planck Institute for Infection Biology in Berlin.

Jennifer Doudna, Ph.D. Professor, Molecular and Cell Biology and Chemistry, University of California, Berkeley

As an internationally renowned professor of chemistry and molecular and cell biology at U.C. Berkeley, Dr. Doudna and her colleagues rocked the research world in 2012 by describing a simple way of editing the DNA of any organism using an RNA-guided protein found in bacteria. This technology, called CRISPR-Cas9, has opened the floodgates of possibility for human and non-human applications of gene editing, including assisting researchers in the fight against HIV, sickle cell disease and muscular dystrophy.

Dr. Doudna is an investigator with the Howard Hughes Medical Institute and a member of the National Academy of Sciences, the National Academy of Medicine, the National Academy of Inventors and the American Academy of Arts and Sciences. She is also a Foreign Member of the Royal Society, and has received many other honors including the Breakthrough Prize in Life Sciences, the Heineken Prize, the BBVA Foundation Frontiers of Knowledge Award and the Japan Prize.

Dr. Doudna received her Ph.D. from Harvard University and was a postdoctoral research fellow in molecular biology at Harvard Medical School, Massachusetts General Hospital. She was the Lucille P. Markey Scholar in Biomedical Science at the University of Colorado. She later served on the faculty at Yale University as the Henry Ford II Professor of Molecular Biophysics and Biochemistry.

She is the co-author with Sam Sternberg of A Crack in Creation, a personal account of her research and the societal and ethical implications of gene editing.

Luciano A. Marraffini, Ph.D. Associate Professor, Laboratory of Bacteriology, The Rockefeller University, New York City

Dr. Marraffini made the seminal discovery that CRISPR-Cas works by cleaving DNA and was the first to propose that this system could be used for genome editing in heterologous systems. He then collaborated with Feng Zhang to perform the first successful editing experiment in eukaryotic (human) cells using CRISPR-Cas9. He continues to elucidate the molecular mechanisms of the CRISPR-Cas immune response in bacteria, including how sequences of viral and plasmid origin are selected to be integrated into CRISPR arrays and how different CRISPR-Cas systems found in different strains of bacteria attack their targets.Dr. Marraffini received his undergraduate degree from the University of Rosario in Argentina and his Ph.D. from the University of Chicago. He was a postdoctoral fellow at Northwestern University in the laboratory of Erik Sontheimer, after which he joined The Rockefeller University as assistant professor and the head of the Laboratory of Bacteriology in 2010. He was named a Howard Hughes Medical Institute-Simons Faculty Scholar in 2016. He is a recipient of the 2015 Hans Sigrist Prize and was named a finalist in the life sciences by the 2015 Blavatnik National Awards for Young Scientists. In 2014, Cell named him one of its 40 Under 40. He is a 2012 Rita Allen Foundation Scholar and a 2011 Searle Scholar, and is the recipient of an NIH Directors New Innovator Award and an RNA Society Award.

Francisco J.M. Mojica, Ph.D.Associate Professor of Microbiology, Department of Physiology, Genetics and Microbiology, University of Alicante, SpainMember of the Multidisciplinary Institute for the Study of the Environment Ramn Margalef, Spain

Dr. Mojicas pioneering work on CRISPR and his fundamental contribution to the knowledge of these components of bacteria for more than two decades makes him a leading scholar on the subject. Thanks to the contributions of Dr. Mojica in this field, exceptional laboratory tools, known as CRISPR-Cas technology, have been developed that can be used for the genetic manipulation of any living being, including humans. This technology has greatly simplified research in biology and medicine, for example, to study complex genetic processes such as those involved in embryonic development, carcinogenesis or neurodegenerative disorders. It is postulated that CRISPR-Cas technology will allow, in the near future, to cure diseases that are not curable or very difficult to tackle.

He received his Ph.D. in Biotechnology from the University of Alicante. He later completed two postdoctoral fellowships in laboratories at the University of Utah, Salt Lake City, and Oxford University in Great Britain. In 1997, he became professor of microbiology at the University of Alicante, founding the research group in molecular microbiology to resume the study on CRISPR he had initiated during his Ph.D. thesis work. In the last few years, his investigation has focused on the CRISPR immunization process, to understand how bacteria acquire foreign genetic material that make them resistant to infecting agents.

He has received many honors including the Lilly Foundation Award for Preclinical Biomedical Research, the Rey Jaime I Prize for Basic Research, and the BBVA Foundation Frontiers of Knowledge Award (biomedicine category).Feng Zhang, Ph.D.Core Member, Broad Institute of MIT and HarvardInvestigator at the McGovern Institute for Brain Research at MITThe James and Patricia Poitras Professor in Neuroscience and Associate Professor, Departments of Brain and Cognitive Sciences and Biological Engineering, Massachusetts Institute of Technology, Cambridge, Mass.

Dr. Zhang is a bioengineer developing and applying novel molecular technologies for studying the molecular and genetic basis of diseases and providing treatment. He played a seminal role in developing optogenetics, a powerful technology for dissecting neural circuits using light. Since joining the Broad and McGovern institutes in January 2011, Zhang has pioneered the development of genome editing tools for use in eukaryotic cells including human cells from natural microbial CRISPR systems.

Following his landmark demonstration that CRISPR-Cas9 could be harnessed for mammalian genome editing, his lab has continued to explore the CRISPR system and develop novel technologies for perturbing and editing the genome for disease research. He and his colleagues have successfully harnessed two additional CRISPR systems: CRISPR-Cpf1, which may allow simpler and more precise genome engineering, and CRISPR-Cas13a, a novel RNA-targeting system, which his team has adapted for use in rapid diagnostics.

Zhang leverages CRISPR and other methods to study the genetics and epigenetics of human diseases, especially complex disorders, such as psychiatric and neurological diseases, that are caused by multiple genetic and environmental risk factors and which are difficult to model using conventional methods. His labs tools, which he has made widely available, are also being used in the fields of immunology, clinical medicine, and cancer biology, among others. His long-term goal is to develop novel therapeutic strategies for disease treatment.He received his A.B. in chemistry and physics from Harvard College and his Ph.D. in chemistry from Stanford University.

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The Albany Medical Center Prize was established in 2000 by the late Morris Marty Silverman, a New York City businessman and philanthropist who grew up in Troy, N.Y., to honor scientists whose work has demonstrated significant outcomes that offer medical value of national or international importance. A $50 million gift commitment from the Marty and Dorothy Silverman Foundation provides for the prize to be awarded annually for 100 years.

Three previous Nobel Prize winners have been among the ranks of researchers honored, and five Albany Prize recipients have gone on to win the Nobel Prize, including Shinya Yamanaka, M.D., Ph.D., a leading stem cell scientist; Elizabeth Blackburn, Ph.D., who discovered the molecular nature of telomeres; Bruce Beutler, M.D., and the late Ralph Steinman, M.D., for their discoveries regarding the detailed workings of the immune system; and Robert Lefkowitz, M.D., for his work on cell receptors.

For biographies and downloadable photos of the 2017 recipients, and more information on the Albany Medical Center Prize in Medicine and Biomedical Research, visit: http://www.amc.edu/Academic/AlbanyPrize.

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Media Inquiries:

Sue Ford Rajchel

fords@mail.amc.edu

(518) 262 - 3421

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Gene Editing Pioneers Receive Americas Most Distinguished ...

Gene therapy | medicine | Britannica.com

Gene therapy, also called gene transfer therapy, introduction of a normal gene into an individuals genome in order to repair a mutation that causes a genetic disease. When a normal gene is inserted into the nucleus of a mutant cell, the gene most likely will integrate into a chromosomal site different from the defective allele; although that may repair the mutation, a new mutation may result if the normal gene integrates into another functional gene. If the normal gene replaces the mutant allele, there is a chance that the transformed cells will proliferate and produce enough normal gene product for the entire body to be restored to the undiseased phenotype.

Human gene therapy has been attempted on somatic (body) cells for diseases such as cystic fibrosis, adenosine deaminase deficiency, familial hypercholesterolemia, cancer, and severe combined immunodeficiency (SCID) syndrome. Somatic cells cured by gene therapy may reverse the symptoms of disease in the treated individual, but the modification is not passed on to the next generation. Germline gene therapy aims to place corrected cells inside the germ line (e.g., cells of the ovary or testis). If that is achieved, those cells will undergo meiosis and provide a normal gametic contribution to the next generation. Germline gene therapy has been achieved experimentally in animals but not in humans.

Scientists have also explored the possibility of combining gene therapy with stem cell therapy. In a preliminary test of that approach, scientists collected skin cells from a patient with alpha-1 antitrypsin deficiency (an inherited disorder associated with certain types of lung and liver disease), reprogrammed the cells into stem cells, corrected the causative gene mutation, and then stimulated the cells to mature into liver cells. The reprogrammed, genetically corrected cells functioned normally.

Prerequisites for gene therapy include finding the best delivery system (often a virus, typically referred to as a viral vector) for the gene, demonstrating that the transferred gene can express itself in the host cell, and establishing that the procedure is safe. Few clinical trials of gene therapy in humans have satisfied all those conditions, often because the delivery system fails to reach cells or the genes are not expressed by cells. Improved gene therapy systems are being developed by using nanotechnology. A promising application of that research involves packaging genes into nanoparticles that are targeted to cancer cells, thereby killing cancer cells specifically and leaving healthy cells unharmed.

Some aspects of gene therapy, including genetic manipulation and selection, research on embryonic tissue, and experimentation on human subjects, have aroused ethical controversy and safety concerns. Some objections to gene therapy are based on the view that humans should not play God and interfere in the natural order. On the other hand, others have argued that genetic engineering may be justified where it is consistent with the purposes of God as creator. Some critics are particularly concerned about the safety of germline gene therapy, because any harm caused by such treatment could be passed to successive generations. Benefits, however, would also be passed on indefinitely. There also has been concern that the use of somatic gene therapy may affect germ cells.

Although the successful use of somatic gene therapy has been reported, clinical trials have revealed risks. In 1999 American teenager Jesse Gelsinger died after having taken part in a gene therapy trial. In 2000 researchers in France announced that they had successfully used gene therapy to treat infants who suffered from X-linked SCID (XSCID; an inherited disorder that affects males). The researchers treated 11 patients, two of whom later developed a leukemia-like illness. Those outcomes highlight the difficulties foreseen in the use of viral vectors in somatic gene therapy. Although the viruses that are used as vectors are disabled so that they cannot replicate, patients may suffer an immune response.

Another concern associated with gene therapy is that it represents a form of eugenics, which aims to improve future generations through the selection of desired traits. Some have argued that gene therapy is eugenic but that it is a treatment that can be adopted to avoid disability. To others, such a view of gene therapy legitimates the so-called medical model of disability (in which disability is seen as an individual problem to be fixed with medicine) and raises peoples hopes for new treatments that may never materialize.

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Gene therapy | medicine | Britannica.com

Maryland scientists research gene linked to depression – The Spokesman-Review

BALTIMORE Although there are medications to treat depression, many scientists arent sure why theyre effective and why they dont work for everyone.

Researchers at the University of Maryland School of Medicine believe they may have found a key to the puzzle of major depression that could lead to therapies for those who dont respond to medications already on the market.

A study by the researchers has identified the central role a gene known as Slc6a15 plays in either protecting from stress or contributing to depression, depending on its level of activity in a part of the brain associated with motivation, pleasure and reward seeking.

Published in the Journal of Neuroscience in July, the study is the first to illuminate in detail how the gene works in a kind of neuron that plays a key role in depression, the according to the medical school.

Specifically, the researchers found that mice with depression had reduced levels of the genes activity, while those with high levels of the genes activity handled chronic stress better.

Though senior researcher Mary Kay Lobos primary studies were done with mice, she also examined the brains of people who had committed suicide and found reduced levels of the genes activity, confirming a likely link.

She hopes now that drugs could be developed that would encourage the genes activity.

I thought it was fascinating we had this system in place that allows us to go after things or be motivated or have pleasure and I was interested in how it becomes dysfunctional in certain diseases like depression, Lobo said. I hope that we can identify molecules that could potentially be therapeutically treated or targeted to treat depression.

Lobo and her colleagues have been examining the gene for years. In 2006, they discovered that it was more common among specific neurons in the brain that they later learned were related to depression. Five years later, other researchers learned that the gene played a role in depression and Lobo and her research colleagues decided to investigate what that role is in those specific neurons.

About 15 million adults, or 6.7 percent of all U.S. adults, experience major depression in a given year, according to the Anxiety and Depression Association of America. It is the leading cause of disability for Americans ages 15 to 44. It is more prevalent in women and can develop at any age, but the median age of onset is 32.5.

David Dietz, an associate professor in the Department of Pharmacology and Toxicology at the State University of New York at Buffalo, said little was known previously about the biological basis of depression in the brain. Many drugs used to treat depression were discovered serendipitously, he said, and it wasnt clear why they worked.

Were starting to really get an idea of what does the depressed brain look like, Dietz said. When you put the whole puzzle together, you see where the problem is. For too long weve been throwing things at individual pieces. Its so complex and we have so little information that it was almost bound to be that way. For the first time this is one of those bigger pieces you can slide into the jigsaw puzzle.

Lobo said its not clear yet how Slc6a15 works in the brain, but she believes it may be transporting three types of amino acids into a subset of neurons called D2 neurons in a part of the brain called the nucleus accumbens. The nucleus accumbens and D2 neurons are known to play a role in pleasure, activating when one eats a delicious meal, has sex or drinks alcohol.

The amino acids would then be synthesized into neurotransmitters. Depression previously has been linked to imbalances of the neurotransmitters serotonin, norepinephrine and dopamine.

So even though people may have proper levels of amino acids in their bodies, the neurons in their brains that need them may not be getting enough if the transporter is not working as it should.

This gene is critical for putting very specific amino acids in the right place so that neurotransmitters can be synthesized, said A.J. Robison, an assistant professor in the Department of Physiology at Michigan State University. Its the location, location, location idea. Its not the amino acids, its where theyre at and in which cells.

Robison said Lobos next step would be discovering more about how the transporter gene works.

The fact that this transporter seems to be important is what the paper shows and how it does it is not shown, and thats a challenge for her, he said. Figuring out the how of it is the next step and Dr. Lobo is particularly positioned to do it.

Lobos team was able to use gene therapy, a form of therapy in the early stages of being studied in humans, in the mice to boost the genes activity. The mice were exposed to larger, more aggressive mice, which usually causes depressive symptoms. But the gene therapy helped protect the mice against the stress, the team found. When the team reduced the genes activity in the mice, just one day of exposure to the aggressive mice was enough to cause symptoms of depression.

Gene therapy is starting to be used in the treatment of some types of cancers, but Lobo said science had not yet advanced to the point where it can be used for treating neurological issues in human patients. A more likely treatment would be a drug that targets the genes activity directly, she said.

I think this is a major step toward our understanding of the precise maladaptive changes that occur in response to stress, said Vanna Zachariou, an associate professor in the Department of Neuroscience at the Icahn School of Medicine at Mount Sinai. It can be a more efficient way to target depression because its not simply targeting monoamine receptors or dopamine but targeting molecular adaptations that occur. It doesnt act necessarily as the drugs we have available, so it might create an alternative avenue to treat depression.

Lobo said she wouldnt refer to Slc6a15 as a depression gene, saying the disease was complex and could have many factors.

I wouldnt say theres one depression gene she said. A number of things play a role, and also theres no depression neuron, theres multiple depression neurons.

There also may be different types of depression with different symptoms, she said. With the disease, some sufferers sleep a lot, while others sleep a lot less, for example.

With all these complex diseases, its hard to link it to something, she said. Like Huntingtons disease, we know theres a specific gene that causes Huntingtons disease. For depression we dont have that.

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Maryland scientists research gene linked to depression - The Spokesman-Review

What You Should Know About the Mind Gut Connection – Thrive Global

Dr. Emeran Mayer is a gastroenterologist who specialises in the communication between the brain, the gut and our environment. He is widely recognised as a pioneer of medical research into the brain, gut and microbe interactions and author of The Mind-Gut Connection: How the Hidden Conversation Within Our Bodies Impacts our Mood, Our Choices and Our Overall Health. (Our conversation has been condensed and edited for clarity.)

You discuss in your book, The Mind-Gut Connection, the journey you took at medical school to study the link between the brain and body in disease. What was the prevailing thought at the time and how were you going against it?

When I got into medical school, I was interested in studying the biological underpinnings of psychological constructs. When looking for a thesis advisor, I went from one professor to the next and they all said that mind gut connections cant be studied even though they knew it was important. After doing a rotation in gastroenterology at the Mass General Hospital at Harvard I was convinced that I wanted to study how the brain interacts with the digestive system. It was surprising to me how big the disconnect was between psychological and holistic concepts and traditional medicine at the time. Coventional Medicine selected people who were interested in mechanical, linear concepts of disease rather than an interest in health as a complex whole.

What is this mechanical, linear view of traditional medicine and why is it not sufficient in treating disease?

The linear viewpoint of the world around us represents the whole paradigm of the Western World. We go from point A to point B and dont look at the holistic context in which this interaction is happening. This model has been very successful in surgery in treating infectious diseases, where you identify a pathogen and develop an antibiotic to kill it. In reality, chronic diseases are not linear phenomena. Chronic diseases are dysregulations of a whole network, in which every organ in the body is interconnected, including the brain. For instance, if you are suffering from obesity, you also have a high risk of metabolic syndrome, of cardiovascular, liver and brain disease and cancer. This is no longer a linear phenomenon. You are looking at a paradigm of interconnectedness of every organ in the body. Chronic disease is a rearrangement in this global network that links every cell in our bodies together. Western medicine has not recognised that and as a result, nearly half of the US population are on chronic medicines. We are clearly not healing the disease. We are treating the systems and suppressing the issue.

How would you describe your approach to disease?

My view is as a systems biology approach. I look at the connections between every part of the body, down to every cell. For instance, if you look at genes, initially we thought that a single gene determines how old you are going to get. Now we know that it is a whole network of genes. Its the same with microbes. We have a hundred trillion microbes in our gut. We have to apply a systems approach of interconnectedness to understand and model it. In chronic disease, the systems go way beyond our bodies. The microbes in your gut live off the food systems from which you get your food, for instance the plants in the soil. And if you pursue this consistently, you all of a sudden see that we are all part of this gigantic interconnected system. I think what is happening with these viral epidemics is in some ways a systems phenomenon. We are attacking the normal system by cutting down the forests, encroaching on ecological niches of wild animals, and overcrowding in cities. And the way these diseases spread is not linear either. The whole world and system is affected.

Why did you decide to focus your research specifically on the connection between the brain and the gut?

From an evolutionary standpoint, our nervous system and our gut were always very closely connected, more so than any other organ. The first primitive organisms were simply a floating digestive tube with a nerve net around them. This basic architecture persisted through millions of years, and we still have a similar design in our gut. I think if you had to choose two organs that are the core of our being I would say it is the gut and the brain. The gut itself is not just a digestive tube, it is also the immune system, the nervous system, and the endocrine system. Contrary to popular belief, 95% of our bodys serotonin is stored in our gut. We interact with the world more through our gut than we do with our skin.

Why are there so many hormones such as serotonin stored in our gut?

We still dont know the full answer to this question. On the one side, the serotonin that is released in the gut communicates with the brain by stimulating the vagus nerve. Serotonin is only one molecule; tryptophan is broken down by the microbes and cells in the gut into many molecules, one of which is serotonin. The ratio of serotonin to some of the other tryptophan metabolites is influenced by microbial activities. The microbes can talk to some of the cells lining our gut and tell them to make more serotonin and release it onto the vagus nerve, which carries the signal to the brain. It also is released back into the gut and influences the behaviour of the microbes, so its going full circle. The molecule that allows microbes to take up the serotonin is the same molecule that acts when you take an antidepressant. We are still at the beginning of understanding the mechanisms of this. What we do know for now is that there is a major link between what we eat, what the microbes do with our food and how it affects brain function.

As well as the link between what we eat, our gut and brain function, you also discuss the effects of negative emotions such as stress on our body. What effect does this have in our gut?

Everybody now talks about the healthy diet and what it does to your gut and microbiome. Very few people talk about the fact that negative emotions in the brain can do almost the same damage as unhealthy food. Chronic stress decreases the diversity of your microbes, and changes the behaviour and leakiness of your gut. Your gut is a mirror image of your emotions. We dont listen and sense the effects of negative emotions or food on our gut on a daily basis. We tend to only notice the effects when we are in a lot of pain. People talk about the negative effects of the Western diet and obesity on cancer. You can imagine the combination of negative emotions and stress, plus the Western diet, will have twice the effect on increasing your risk of chronic disease. Typically in Western medicine, we dont pay too much attention to the mind but it is really key to realise this importance.

You also discuss how those with a positive attitude to life tend to heal faster from disease. What is the explanation behind this?

This comes back to the concept of our body as an interconnected network. How this network is constructed in our lives, determines how resilient it is to disease. This is shaped early in life, in the first two years of our lives for the microbiome and the first 18 years for the brain. The way this is programmed determines your resilience later in life. If framed in a positive way, such as with grit, enthusiasm, passion, compassion, and with the right diet, you are likely to be more resilient later in life. It offers an explanation for chronic diseases and longevity, determining how long we live and how healthy we are. As humans, we have this amazing ability to learn, our prefrontal cortex is incredibly plastic, providing our body with the opportunity to adapt and change to varying situations. I think our health ultimately all comes down to attitude and diet.

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What You Should Know About the Mind Gut Connection - Thrive Global

Covid-19: Why testing takes time and what to expect – Daily Maverick

This scanning electron microscope image shows SARS-CoV-2, the virus that causes Covid-19, (round blue objects) emerging from the surface of cells cultured in the lab. SARS-CoV-2, also known as 2019-nCoV, is the virus that causes Covid-19. The virus shown was isolated from a patient in the U.S. Image by the US NIAID (CC BY 2.0)

First published by GroundUp

Are you wondering why you have to wait a few days for the results of the Covid-19 test? One reason is that laboratory technicians must take pains to avoid getting it wrong what are called false negatives, and less often, false positives.

The other reason is that the techniques they use are done in a specialised laboratory, working with very small, precise quantities of what are known as reagents.

The first step is to take a swab from you as shown in this video from the New England Journal of Medicine (the worlds leading medical journal):

It may be a little uncomfortable, but grin and bear it; its for your own good.

You could also provide a sputum sample from your lower respiratory tract if you have a cough. A health worker will decide based on your symptoms, and the guidelines issued by the National Institute of Communicable Diseases (NICD), which route to take.

Looking for the virus

Lab technicians need the swab to check if you have the virus. They do this using a diagnostic test called a real-time reverse-transcription polymerase chain reaction (rRT-PCR) test. To do a PCR diagnostic test, a laboratory technician isolates the genetic material of the virus from the sample you have provided. The PCR technique is well-developed and there is plenty of information about it online.

A virus is a small infectious agent that multiplies in living cells. Viruses contain nucleic acids, which are the building blocks of living organisms. DNA and RNA are the primary nucleic acids. Some viruses may contain single-stranded nucleic acids, others may contain double-stranded nucleic acids. A genome is the complete set of hereditary material in an organism. Some viruses have RNA genomes, while other viruses have DNA genomes. The genomes of some RNA viruses can be translated directly into viral proteins and they serve as a template for genome replication. They are described as positive-sense.

The coronavirus that emerged in late 2019 has a single-strand, positive-sense RNA genome.

PCR is a molecular biology tool that is used to amplify a gene segment from a very small sample of DNA. Many millions of copies are produced, which allows the gene sequence of interest to be studied further.

The first step involves transforming the RNA into DNA using an enzyme called reverse transcriptase. A small amount of DNA is amplified into larger quantities which will be more easily detected. In a standard PCR, the lab technician can only find out the result of the test once it is complete. In a real-time PCR, a camera or detector can watch as the reaction takes place and give real-time feedback on how the test is going.

The waiting period the time you have to wait to get your results may be due to a number of factors all of which contribute to the reliability of your test result. The crucial one is to reduce the risk of getting a false negative (when the PCR test says you dont have the infection, but in fact you do).

According to the NICD, a false negative could occur when the specimen:

Technical reasons inherent in the test, for example virus mutation, may also lead to a false result.

False positives occur less often and may be the result of the slightest of contaminations in the testing process, among other factors.

The World Health Organisation, the Centers for Disease Control and Prevention, and the NICD provide guidance for laboratory testing on their websites. But the Covid-19 virus is new, so testing protocols are being formulated and refined as new knowledge emerges.

Other tests needed

At present, PCR tests can only be done in specialised laboratories. Even putting aside the time it takes to get the sample from the patient to the lab, the fastest available process takes at least four hours to get a result. This time includes the sample preparation and the actual analysis.

The backlog that is building up because of the increased demand for tests could mean the process will, in the short term, probably become slower rather than faster.

Other, quicker, types of tests are needed.

The US Food and Drug Administration (FDA) has in the past few days approved a test developed by molecular diagnostics company Cepheid. It produces a machine called the Gene Xpert, the size of a desktop computer, which can be used in health facilities to do PCR tests for the new coronavirus.

But at this stage it is unclear how well the Cepheid test works, how quickly the company can produce the reagents needed for it, what these will cost and how quickly it can be rolled out across the world.

To permit the use of this test, the FDA, on 29 February, posted new rules allowing emergency use authorisations of coronavirus tests other than the ones made and distributed by the US Centers for Disease Control and Prevention.

The RT-PCR test is recommended by the World Health Organisation.

Another possible way for testing would be that recommended by David Ho, a viral epidemic expert, who suggested antibody testing in his interview with Caltech.

To fight viruses, your body will begin producing antibodies. An antibody is a protective protein produced by your immune system to help it fight this foreign substance. These are usually cheaper and quicker than PCR tests, and can be done at a clinic quickly, with a patient able to get his result before going home.

Reports are emerging of promising antibody tests, but at the time of publication none had been approved. Things are changing quickly, however. For example, on 18 March 2020, researchers posted a preprint on the Medriv website of a serology test which would identify the antibodies within three days of the onset of symptoms. A serology test is a blood test that looks for antibodies in your blood.

The researchers were clear that this was not a clinical trial, but the first development towards such a test.

On March 22, the WHO published its interim guidance for Laboratory testing strategy recommendations for Covid-19. It stipulated that serological assays will play an important role in research and surveillance, but are not recommended for case detection at present.

The role of rapid disposable tests for antigen detection for Covid-19 needs to be evaluated and is not currently recommended for clinical diagnosis pending more evidence on test performance and operational utility.

Behind the scenes

There is a lot more going on behind the scenes in the testing lab than most people realise. Entire teams are working to ensure your results are reliable.

The process, by its very nature, is painstaking and methodical.

But the good news is that throughout the world, scientists are working together, sharing knowledge that is being accrued by the day. Theyre making tests that are quicker, and more reliable.

For informed information on how to proceed for testing, contact the National Institute for Communicable Diseases on its 24-hour toll-free number: 0800 029 999. DM

Fatima Khan has a background in laboratory research and education. She is currently enrolled on Roving Reporters environmental journalism training project. Additional reporting by GroundUp.

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Covid-19: Why testing takes time and what to expect - Daily Maverick

University of Maryland scientists research gene linked to depression – Baltimore Sun

Although medications exist to treat depression, many scientists arent sure why theyre effective and why they dont work for everyone.

Researchers at the University of Maryland School of Medicine believe they may have found a key to the puzzle of major depression that could lead to therapies for those who dont respond to medications already on the market.

A new study by the researchers has identified the central role a gene known as Slc6a15 plays in either protecting from stress or contributing to depression, depending on its level of activity in a part of the brain associated with motivation, pleasure and reward seeking.

Published in the Journal of Neuroscience in July, the study is the first to illuminate in detail how the gene works in a kind of neuron that plays a key role in depression, according to the University of Maryland School of Medicine.

Specifically, the researchers found that mice with depression had reduced levels of the genes activity, while those with high levels of the genes activity handled chronic stress better.

Though senior researcher Mary Kay Lobos primary studies were done with mice, she also examined the brains of people who had committed suicide and found reduced levels of the genes activity, confirming a likely link.

She hopes now that drugs could be developed that would encourage the genes activity.

I thought it was fascinating we had this system in place that allows us to go after things or be motivated or have pleasure and I was interested in how it becomes dysfunctional in certain diseases like depression, Lobo said. I hope that we can identify molecules that could potentially be therapeutically treated or targeted to treat depression.

Lobo and her colleagues have been examining the gene for years. In 2006, they discovered that it was more common among specific neurons in the brain that they later learned were related to depression. Five years later, other researchers learned the gene played a role in depression and Lobo and her research colleagues decided to investigate what that role is in those specific neurons.

About 15 million adults, or 6.7 percent of all U.S. adults, experience major depression in a given year, according to the Anxiety and Depression Association of America. It is the leading cause of disability for Americans aged 15 to 44. It is more prevalent in women and can develop at any age, but the median age of onset is 32.5.

David Dietz, an associate professor in the Department of Pharmacology and Toxicology at the State University of New York at Buffalo, said little was known previously about the biological basis of depression in the brain. Many drugs used to treat depression were discovered serendipitously, he said, and it wasnt clear why they worked.

Were starting to really get an idea of what does the depressed brain look like, Dietz said. When you put the whole puzzle together, you see where the problem is. For too long weve been throwing things at individual pieces. Its so complex and we have so little information that it was almost bound to be that way. For the first time this is one of those bigger pieces you can slide into the jigsaw puzzle.

Lobo said its not clear yet how Slc6a15 works in the brain, but she believes it may be transporting three types of amino acids into a subset of neurons called D2 neurons in a part of the brain called the nucleus accumbens. The nucleus accumbens and D2 neurons are known to play a role in pleasure, activating when one eats a delicious meal, has sex or drinks alcohol.

The amino acids would then be synthesized into neurotransmitters. Depression previously has been linked to imbalances of the neurotransmitters serotonin, norepinephrine and dopamine.

So even though people may have proper levels of amino acids in their bodies, the neurons in their brains that need them may not be getting enough if the transporter is not working as it should.

This gene is critical for putting very specific amino acids in the right place so that neurotransmitters can be synthesized, said A.J. Robison, an assistant professor in the Department of Physiology at Michigan State University. Its the location, location, location idea. Its not the amino acids, its where theyre at and in which cells.

Robison said Lobos next step would be discovering more about how the transporter gene works.

The fact that this transporter seems to be important is what the paper shows and how it does it is not shown, and thats a challenge for her, he said. Figuring out the how of it is the next step and Dr. Lobo is particularly positioned to do it.

Lobos team was able to use gene therapy, a form of therapy in the early stages of being studied in humans, in the mice to boost the genes activity. The mice were exposed to larger, more aggressive mice, which usually causes depressive symptoms. But the gene therapy helped protect the mice against the stress, the team found. When the team reduced the genes activity in the mice, just one day of exposure to the aggressive mice was enough to cause symptoms of depression.

Gene therapy is starting to be used in the treatment of some types of cancers, but Lobo said science had not yet advanced to the point where it can be used for treating neurological issues in human patients. A more likely treatment would be a drug that targets the genes activity directly, she said.

I think this is a major step toward our understanding of the precise maladaptive changes that occur in response to stress, said Vanna Zachariou, an associate professor in the Department of Neuroscience at the Icahn School of Medicine at Mount Sinai. It can be a more efficient way to target depression because its not simply targeting monoamine receptors or dopamine but targeting molecular adaptations that occur. It doesnt act necessarily as the drugs we have available, so it might create an alternative avenue to treat depression.

Lobo said she wouldnt refer to Slc6a15 as a depression gene, saying the disease was complex and could have many factors.

I wouldnt say theres one depression gene she said. A number of things play a role, and also theres no depression neuron, theres multiple depression neurons.

There also may be different types of depression with different symptoms, she said. With the disease, some sufferers sleep a lot, while others sleep a lot less, for example.

With all these complex diseases, its hard to link it to something, she said. Like Huntingtons disease, we know theres a specific gene that causes Huntingtons disease. For depression we dont have that.

cwells@baltsun.com

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University of Maryland scientists research gene linked to depression - Baltimore Sun

Press Registration Reminder! Countdown to the 2020 ACMG Annual Clinical Genetics Meeting – PRNewswire

BETHESDA, Md., Feb. 12, 2020 /PRNewswire/ --The American College of Medical Genetics and Genomics (ACMG) heads to a new destination in sunny San Antonio, Texas in 2020. Named one of the fastest growing meetings in the USA by Trade Show Executive Magazine, the ACMG Annual Clinical Genetics Meeting continues to provide groundbreaking research and news about the latest advances in genetics, genomics and personalized medicine. To be held March 17-21, the 2020 ACMG Annual Meeting will feature more than 40 scientific sessions as well as three Short Courses, a variety of workshops, TED-Style talks and satellite symposia, and more than 750 poster presentations on emerging areas of genetic and genomic medicine.

Interview those at the forefront in medical genetics and genomics, connect in person with new sources and get story ideas on the clinical practice of genetics and genomics in healthcare today and for the future. Learn how genetics and genomics research is being integrated and applied into medical practice.

Topics include gene editing, cancer genetics, molecular genomics, exome sequencing, pre- and perinatal genetics, biochemical/metabolic genetics, genetic counseling, health services and implementation, legal and ethical issues, therapeutics and more.

Credentialed media representatives on assignment are invited to attend and cover the ACMG Annual Meeting on a complimentary basis. Contact Reymar Santos at rsantos@acmg.net for the Press Registration Invitation Code, which will be needed to register at http://www.acmgmeeting.net.

Abstracts of presentations are available online at http://www.acmgmeeting.net. A few 2020 ACMG Annual Meeting highlights include:

Program Highlights:

Cutting-Edge Scientific Concurrent Sessions:

Three Half-Day Genetics Short Courses on Monday, March 16 and Tuesday, March 17:

Photo/TV Opportunity: The ACMG Foundation for Genetic and Genomic Medicine will present bicycles to local children with rare genetic diseases at the Annual ACMG Foundation Day of Caring on Friday, March 20 from 10:30 AM 11:00 AM at the Henry B. Gonzlez Convention Center.

Social Media for the 2020 ACMG Annual Meeting: As the ACMG Annual Meeting approaches, journalists can stay up to date on new sessions and information by following the ACMG social media pages on Facebook, Twitterand Instagramand by usingthe hashtag #ACMGMtg20 for meeting-related tweets and posts.

Note be sure to book your hotel reservations early.

The ACMG Annual Meeting website has extensive information at http://www.acmgmeeting.net.

About the American College of Medical Genetics and Genomics (ACMG) and the ACMG Foundation for Genetic and Genomic Medicine

Founded in 1991, the American College of Medical Genetics and Genomics (ACMG) is the only nationally recognized medical society dedicated to improving health through the clinical practice of medical genetics and genomics and the only medical specialty society in the US that represents the full spectrum of medical genetics disciplines in a single organization. The ACMG is the largest membership organization specifically for medical geneticists, providing education, resources and a voice for more than 2,400 clinical and laboratory geneticists, genetic counselors and other healthcare professionals, nearly 80% of whom are board certified in the medical genetics specialties. ACMG's mission is to improve health through the clinical and laboratory practice of medical genetics as well as through advocacy, education and clinical research, and to guide the safe and effective integration of genetics and genomics into all of medicine and healthcare, resulting in improved personal and public health. Four overarching strategies guide ACMG's work: 1) to reinforce and expand ACMG's position as the leader and prominent authority in the field of medical genetics and genomics, including clinical research, while educating the medical community on the significant role that genetics and genomics will continue to play in understanding, preventing, treating and curing disease; 2) to secure and expand the professional workforce for medical genetics and genomics; 3) to advocate for the specialty; and 4) to provide best-in-class education to members and nonmembers. Genetics in Medicine, published monthly, is the official ACMG journal. ACMG's website (www.acmg.net) offers resources including policy statements, practice guidelines, educational programs and a 'Find a Genetic Service' tool. The educational and public health programs of the ACMG are dependent upon charitable gifts from corporations, foundations and individuals through the ACMG Foundation for Genetic and Genomic Medicine.

Raye Alford, PhD ralford@acmg.net

SOURCE American College of Medical Genetics and Genomics

http://www.acmg.net

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Press Registration Reminder! Countdown to the 2020 ACMG Annual Clinical Genetics Meeting - PRNewswire

World Cancer Day: Going back to the basics The genetics of cancer – Firstpost

We have all heard of the term gene and DNA, but little do we know about the impact of changes in them known commonly as genetic mutations. Most cancers are associated with these changes in specific genes which are sub-units of the genetic material, DNA. In this era of modern medicine & treatment, certain genetic mutations have been identified to be responsible for several diseases including cancer and targeting such mutations play a major role in the overall management of the disease, to improve the quality of the life and cure.

In the past two decades, there has been an increasing number of cancer cases in India. According to the Globocan 2018 data, about 1.16 million new cancer cases in India were reported with close to 7.9 lakh deaths. In India, the cancer subtypes in descending order are breast cancer (14 percent), lip/oral cavity cancers (10.4 percent), cervical cancer (8.4 percent), lung cancer (5.9 percent) and stomach cancer (5 percent) followed by others.

Most cancers are associated with changes in specific genes which are sub-units of the genetic material DNA.

The question that arises that How genetic testing would help in understanding genetic mutation and its relation to cancer/s? The simple answer to this question is, whatever one asks for. Genetic testing provides varied answers, starting from predisposition, and events before onset of cancer to treatment planning and monitoring as well as detection of early relapse/recurrence.

How can the genetic information related to cancer, be decoded even before the cancer onset? Well, the presence of certain gene mutations increases the chances of developing cancers drastically. These cancers are known as hereditary cancers, and the process is known as hereditary risk assessment. Understanding genetic mutations can help one understand whether there are increased chances of developing cancer. For example, any woman is at a 12 percent lifetime risk of developing breast cancer, in general population, but if there is a presence of harmful BRCA1 mutation, in a given individual due to inheritance, this risk can go as high as 70 percent.

Once cancer has developed, there are various ways in which these genetics tests can prove handy. Understanding genetic mutations can help the oncologist diagnose and differentially diagnose cancer subtypes in a more informed manner. Further certain genetic mutations help in understanding if the cancer progression will be aggressive or not. For example, in case of a leukaemia subtype: chronic lymphocytic leukaemia (CLL), the presence of IGHV gene mutation indicates that cancer wont progress aggressively. In medical terms it is known as good prognosis. On the other hand, there are some gene mutations that indicate poor prognosis of cancer as well.

Coming to the most known of application of genetic testing, we all have heard of what is called targeted treatment. Presence of certain gene mutations help the oncologists target the cancer as far as treatment is concerned. For example, in lung cancer, there are various classes of drugs that are based on gene mutations, such as EGFR inhibitors, which have a better effect on EGFR mutated lung cancers.

Certain genetic mutations help in understanding if the cancer progression will be aggressive or not.

Other applications of genetic testing include assessment of the treatment response for a given drug, also to detect the early recurrence in a periodic manner by a non-invasive procedure to check for cancer-specific mutations in the plasma of the blood sample, also known as liquid biopsy testing

Like all other subjects, cancer genetics is also something where India has certain unique features. There are multiple research papers that mention that in lung cancer, the prevalence of EGFR mutations is higher in south-Asian, particularly Indian population, as compared to the western populations. This provides an added advantage of treating these patients with targeted therapy for killing the specific cancer cells, thus avoiding the side effects associated with conventional chemotherapy. Hence understanding the mutation status of EGFR gene becomes imperative in case of lung cancers.

Similarly, there is a subclass of breast cancer called triple-negative breast cancers (TNBC), where there is an absence of receptors known to fuel breast cancer growth- Estrogen, Progesterone and Her-2/Neu gene. This is one of the most aggressive subtypes of breast cancer, where there are to targeted therapies available so far, and the standard of care remains conventional chemo-radiotherapy/surgery. Considering its aggressive behaviour the recurrence rates are very high in this subtype of cancers, and nearly 20 percent of these women are BRCA1/BRCA2 mutation carriers. As far as India is concerned, the triple-negative breast cancers incidence is higher in India (30 percent) as compared to the western population (12-17 percent), and have a poorer prognosis and survival (60 percent: 5 years age-adjusted survival) as compared to the Caucasian population (80 percent: 5 year age adjusted survival).

Talking about BRCA1 mutated breast cancers, one particular mutation, DelAG, is considered to be founder mutation in Ashkenazi Jewish community. Founder mutations is when a genetic alteration is observed with high frequency in a group that is or was geographically or culturally isolated, in which one or more of the ancestors was a carrier of the altered gene. In our experience, we have seen this founder mutation in Indian sub-population as well over and above Ashkenazi Jewish community.

In conclusion, genetic testing is aimed at providing clarity and insights about a persons cancer to the Oncologists that helps them make an informed decision. An increasing number of Oncologists have adopted genetic testing as an important tool for diagnosis and treatment planning of cancer and its management. Our constant effort is aimed to ensure, maximum number of cancer patients get benefitted by this technology in the society.

Dr Vidya Veldore is a principal scientist for Oncology at MedGenome Labs Ltd.

Updated Date: Feb 04, 2020 17:32:40 IST

Tags :Cancer,Cancer Day. World Cancer Day 2019,Cancer Patients,Diagnosis Of Cancer,DNA,Gene Mutations,Genes,Genetics Of Cancer,Genetics Tests,Oncologists,Oncology,Types Of Cancer,World Cancer Day

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World Cancer Day: Going back to the basics The genetics of cancer - Firstpost

Research Roundup: CRISPR-based cancer therapy, tanning studies, immigration and deportation – The Stanford Daily

Each week, The Dailys Science & Tech section produces a roundup of the most exciting and influential research happening on campus or otherwise related to Stanford. Heres our digest for the week of Feb. 2 Feb. 8.

CRISPR-based cancer therapy shows promise

A new FDA-approved cancer therapy uses the gene-editing technology Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) to enhance T-cells, a type of immune cell, in order to better fight cancer, a study published on Feb. 6 in Science found.

Lets say normally, theres a T-cell thats involved in an allergic reaction to pollen, genetics and dermatology professor Howard Chang told Stanford Medicines blog SCOPE. We can use CRISPR to alter the cell so that it doesnt react to pollen anymore, and instead, only fights cancer.

The researchers goal was to introduce three gene edits to T-cells, then reintroduce edited T-cells back into the patient. The gene edits would rid T-cells of their natural receptors and increase their immune activity to actively fight cancer. After three months, researchers took edited T-cell samples from patients to analyze their molecular characteristics.

If you think of all of these edited T-cells like theyre in a horse race, analyzing these cells is like being able to see which horse wins the race, but also that horses speed, gait and all of the critical details that make that horse the best, Chang told Stanford Medicines blog SCOPE.

The findings suggest the therapy is safe, and further studies will need to be performed in future human clinical trials.

Industry-backed studies show bias favoring indoor tanning

Studies on indoor tanning that are financially backed by the tanning industry are more likely to promote benefits and dismiss risks compared to studies without financial support, an investigation published on Feb. 4 in the British Medical Journal found.

The association is quite striking, dermatology professor Eleni Linos told Stanford Medicine News. We need scientific data to be independent of industry influence. I am concerned that funding sources may influence the conclusions of these papers.

The researchers analyzed 691 journal articles referencing indoor tanning and found that 50 had industry backing. 78% of articles with industry backing portrayed indoor tanning in a positive light, compared to 4% of articles without industry backing.

This is the first study to examine conflict of interest in indoor tanning literature, and it echoes whats been said about the influence of the tobacco and sugar industries on science, Linos told Stanford Medicine News. Researchers, public health experts and members of the general public should be aware of and account for industry funding when assessing the evidence related to the risks and benefits of indoor tanning.

Immigrants who obtain legal status might still fear deportation

Immigrants might continue to fear deportation even after receiving documentation, a study published on Jan. 29 in Law & Society Review found.

Documentation is hardly a shield from deportation fears, sociology assistant professor Asad Asad told Stanford News. Documentation affords some protection from deportation, but it can also heighten fears since the bureaucracies that document immigrants have a greater perceived ability to surveil and expel them.

Between 2013 to 2015, he conducted extensive interviews with 50 undocumented and documented immigrants living in the Dallas metropolitan area to learn about their everyday lives.

Some undocumented migrants may be chilled out of legalization opportunities in an attempt to maintain a sense of invisibility to a system they view as primarily punitive, Asad told Stanford News. If fears of deportation lead immigrants to pass up rare opportunities for legal status in their search for invisibility from a system they view as unforgiving, they and their U.S.-citizen children may face restricted opportunities for promoting their long-term well-being in this country.

Contact Derek Chen at derekc8 at stanford.edu.

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Research Roundup: CRISPR-based cancer therapy, tanning studies, immigration and deportation - The Stanford Daily

Triple negative breast cancer might not actually be ‘breast cancer’ – Clinical OMICs News

A new study from New York might completely change how breast cancer is classified and treated. Researchers have discovered, in a study of triple negative breast cancer in black women, that the molecular mechanisms involved are more closely related to non-breast cancers, and two specific gene mutations may be responsible for the tumor development.

This study would signal a potential treatment breakthrough for patients with this form of breast cancer, which disproportionately affects and tends to develop more aggressively in black women. Triple negative breast cancer is a form of breast cancer that is not hormone driven, and it does not express the estrogen receptor, progesterone receptor, or HER2/neu genesunlike other forms of the disease, which rely on hormone-driven therapies to control the cancer.

The paper, authored by researchers at The Graduate Center of The City University of New York, Hunter College, Memorial Sloan Kettering Cancer Center, and the University of Chicago, details findings about the interaction between two specific genes during DNA replication that appear to drive growth of malignant cells in patients with triple negative breast cancer.

The research team found the presence of a mutated p53 (a tumor suppressor gene whose mutation often leads to cancer development) and a mutated PARP (a gene that maintains DNA integrity) in a large majority of patients with triple negative breast cancer. Specifically, they found that p53 would interact with replicating DNA and PARP, driving cell growth and division.

This information would suggest that if drugs could specifically target these two mutated genes and the proteins they produce, it would be possible to suppress their actions and slow or stop tumor growth, so the researchers tested this in lab, using drugs developed for other types of cancer.This was indeed the case.

Our new findings suggest that the presence of both [p53] and PARP could serve as a good identifier of breast cancers that would respond to combined treatment with talazoparib a PARP inhibitor that was developed to treat breast cancers with the BRCA mutation and temozolomide a chemotherapy agent that is used to treat some brain cancers, said Professor Jill Bargonetti, whose lab conducted the research. This is an exciting finding because it could lead to the first targeted therapy for triple negative breast cancer, enabling more precise and effective treatment of a very aggressive form of the disease.

To conduct this study, researchers investigated a variety of breast cancer cell lines, patient-derived xenographs, tissue microarray samples, and data from The Cancer Genome Atlas to tease out the association and interaction between p53 and PARP in triple negative breast cancer.

Our findings that mutant p53 and PARP participate in the DNA replication pathway will provide mechanism-derived dual biomarkers that aid in the diagnosis and treatment of these therapeutically elusive subsets of breast cancer, said Gu Xiao, a research associate with Bargonettis lab and the papers first author.

The scientists had discovered that high levels of these proteins are present on replicating DNA in these types of tumors, suggesting that the unusual presence and levels of these proteins may drive tumor growth. When these researchers reviewed the therapeutic mechanisms of existing cancer drugs, it led the research team to identify talazoparib and temozolomide as existing drugs that could potentially be combined to create a targeted therapy that could effectively suppress the growth of triple negative breast cancer tumors.

Looking to the future, this group plans to test if this combination of drugs can successfully block replication of triple negative breast cancer cells in xenographed animal models. If the therapy can prove to be successful, it would very likely lead to the reclassification of triple negative breast cancer to a category of cancers called mutant p53/PARP1 positive cancers, which are treatable with a combination PARP inhibitor therapies.

With so little in positive news for this particular subset of breast cancer, and many previous clinical trials being disappointing, these new findings are both welcome news to the scientific community, as well as a good explanation as to why this disease has been so hard to treat compared to other forms of breast cancer.

This study gives doctors two new biomarkers to test for in patients, and many new potentials in clinical trials, which can be fast tracked since so many drugs already exist that target these specific genes. While this study only tested out two drugs, there are many other drugs that specifically target p53 and PARP, and many more which can be developed, which may give even better results. Hopefully, there will be many new, positive developments for this disease following this discovery.

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Triple negative breast cancer might not actually be 'breast cancer' - Clinical OMICs News

Pfizer lays out gene therapy aspirations – BioPharma Dive

Pfizer aims to be the third big pharma with a significant presence in gene therapy. Its plans to initiate this year three Phase 3 trials targeting mutation-driven blood and muscular diseases would make it a large player in this cutting-edge area of medicine.

The difference between Pfizer and its Swiss rivals Novartis and Roche is that its treatments for muscular dystrophy and hemophilia do not look like they will be the first to market. With hopes that gene therapy could be a one-and-done treatment, arriving second could put Pfizer at a disadvantage if eager patients rush for curative therapies.

Having spun of its off-patent drugs business, the pharma is now trying to talk up the "new Pfizer." Its gene therapies are among seven pipeline projects that it cited Tuesday during its year-end earnings call as critical to its strategy of becoming a more innovation-focused company.

Company executives weren't, however, asked to answer how Pfizer views the emerging gene therapy competition. BioMarin Pharmaceutical looks set to get to the market earlier in hemophilia A than Pfizer, while Uniqure in hemophilia B and Sarepta Therapeutics in Duchenne muscular dystrophy appear ahead.

Pfizer's hemophilia A project, the Sangamo Therapeutics-originated SB-525, is up against BioMarin's valrox, which has been submitted to the Food and Drug Administration for an approval decision later this year.

In hemophilia B, fidanacogene elaparvovec, licensed from Roche subsidiary Spark Therapeutics, is in a neck-and-neck race with UniQure's etranacogene dezaparvovec in Phase 3 testing. Duchenne research, meanwhile, is led by Sarepta, which is launching a Phase 3 trial of its drug this year, putting Pfizer's at a disadvantage.

Other than announcing its intent to launch Phase 3 trials in hemophilia A and Duchenne, Pfizer didn't provide much more detail about these clinical programs. Mikael Dolsten, Pfizer's chief scientific officer, said more could be revealed about the DMD program at an upcoming research & development day.

Progress on that project had been delayed after one patient was hospitalized with kidney complications, but Dolsten said trial investigators had dosed additional patients. The Phase 2 will wrap up this spring, and the new data and longer follow-up will help guide a Phase 3 trial design, the company said.

Dolsten also described the hemophilia A project as having a 'best-in-class profile," even though BioMarin's valrox has impressed hematologists with its ability to increase expression of a key blood-clotting protein.

In addition, he said the company hopes it can bring one new gene therapy into its pipeline per year.

Building its drug development portfolio is one reason why the company has chosen not to buy back shares, said CEO Albert Bourla.

He pointed to the company's need in the past to buy back shares to support their valuation because of revenue declines, but now he said the company is in a different strategic position.

"The company is going to have a best-in-class revenue growth story," he said. "We can use the capital to invest in good Phase 2, Phase 3 assets to grow our pipeline."

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Pfizer lays out gene therapy aspirations - BioPharma Dive