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Scientists describe the genetic signature of a vital set of neurons

Posted: Published on November 30th, 2012

Public release date: 29-Nov-2012 [ | E-mail | Share ] Contact: Christopher Rucas christopher.rucas@nyumc.org 212-404-3525 NYU Langone Medical Center / New York University School of Medicine Scientists at NYU Langone Medical Center have identified two genes involved in establishing the neuronal circuits required for breathing. They report their findings in a study published in the December issue of Nature Neuroscience. The discovery, featured on the journal's cover, could help advance treatments for spinal cord injuries and neurodegenerative diseases such as amyotrophic lateral sclerosis (ALS), which gradually kill neurons that control the movement of muscles needed to breathe, move, and eat. The study identifies a molecular code that distinguishes a group of muscle-controlling nerve cells collectively known as the phrenic motor column (PMC). These cells lie about halfway up the back of the neck, just above the fourth cervical vertebra, and are "probably the most important motor neurons in your body," says Jeremy Dasen, PhD, assistant professor of physiology and neuroscience and a member of the Howard Hughes Medical Institute, who led the three-year study with Polyxeni Philippidou, PhD, a postdoctoral fellow. Harming the part of the spinal cord where the PMC resides can instantly shut down breathing. But relatively little … Continue reading

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Journal Clinical Pediatrics Reports 80% of Parents Surveyed Would be Interested in Genetic Risk Assessment Testing for …

Posted: Published on November 30th, 2012

CAMBRIDGE, Mass.--(BUSINESS WIRE)-- The vast majority (80 percent) of parents with at least one child with Autism Spectrum Disorder (ASD) would pursue genetic testing if a test were available that could identify risk in a younger sibling, citing the desire for earlier identification of children at risk, earlier evaluation and intervention, closer monitoring and lessened anxiety. The findings were reported in Parental Interest in a Genetic Risk Assessment Test for Autism Spectrum Disorders, a survey published online today in the journal Clinical Pediatrics. The survey of 162 parents of children with ASD also reported an almost three-year lag from the time ASD was initially suspected until a child received a diagnosis--even in families with a previously diagnosed child. Link to publication. The internet-based survey was sponsored by IntegraGen, Inc. and conducted during February and March 2012. Earlier this year, the CDC announced that ASD prevalence in the United States has increased to one in 88 children, and even with increased awareness, the average age of ASD diagnosis is greater than four years. The majority of parents surveyed said they would be interested in having their child tested if a genetic test was available that could identify ASD risk--even if it … Continue reading

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Genetic variation recent, varies among populations

Posted: Published on November 30th, 2012

Public release date: 28-Nov-2012 [ | E-mail | Share ] Contact: Glenna Picton picton@bcm.edu 713-798-4710 Baylor College of Medicine HOUSTON -- (Nov. 29, 2012) Nearly three-quarters of mutations in genes that code for proteins the workhorses of the cell occurred within the past 5,000 to 10,000 years, fairly recently in evolutionary terms, said a national consortium of genomic and genetic experts, including those at Baylor College of Medicine. "One of the most interesting points is that Europeans have more new deleterious (potentially disease-causing) mutations than Africans," said Dr. Suzanne Leal, professor of molecular and human genetics at BCM and an author of the report. She is also director of the BCM Center for Statistical Genetics. "Having so many of these new variants can be partially explained by the population explosion in the European population. However, variation that occur in genes that are involved in Mendelian traits and in those that affect genes essential to the proper functioning of the cell tend to be much older." (A Mendelian trait is controlled by a single gene. Mutations in that gene can have devastating effects.) The amount variation or mutation identified in protein-coding genes (the exome) in this study is very different from … Continue reading

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Stemlogix Reports Idaho Veterinarians Perform First in U.S. Combination Regenerative Medicine Treatment on Injured Horse

Posted: Published on November 30th, 2012

Procedure Combines Point-of-Care Stem Cell Therapy and Enriched Mesenchymal Stem Cell Injection NAMPA, ID--(Marketwire - Nov 29, 2012) - Veterinarians from Idaho Equine Hospital, including Dr. William Maupin and Dr. Stuart Shoemaker, performed the first-ever combination regenerative medicine treatment on a six-year-old Quarter Reined Cow horse that suffered a significant injury to its distal straight sesamoidean ligament. This injury can be challenging for veterinarians to successfully treat and return the horse to athletic competition. The veterinary team and the scientific team at Stemlogix, LLC determined that the best treatment protocol would be to treat him with point-of-care stem cell therapy using the Stemlogix In-Clinic Regenerative Medicine System and then perform a follow up treatment a few weeks later using culture expanded mesenchymal stem cells. He received a dose of the point-of-care stem cell therapy three weeks ago and three weeks later received an injection of culture expanded mesenchymal stem cells. Stemlogix, LLC pioneered the landmark stem cell therapy treatment regimen and this is the first time this combination stem cell therapy treatment has ever been performed on a horse. The team that treated the horse believes this revolutionary treatment protocol will give him the best chance for an improved quality … Continue reading

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Different organ-derived stem cell injections improve heart function in rats

Posted: Published on November 30th, 2012

Washington, November 28 (ANI): When mesenchymal cells derived from skeletal muscle (SM-MSCs) or adipose tissue (ADSCs) were injected into the heart muscle (myocardium) of separate groups of laboratory rats that had suffered a myocardial infarction, rats in both groups experienced significantly improved left ventricle function and smaller infarct size after cell therapy, a study has found. The study, carried out by researchers at Oslo University Hospital and the Norwegian Center for Stem cell Research, Oslo University, sought to determine if MSCs from different organs would result in different functional outcomes. "Despite advances in revascularization and medical therapy, acute myocardial infarction (AMI) and heart failure are still important causes of morbidity and mortality in industrialized countries," said study co-author Dr. Jan E. Brinchmann of the Norwegian center for Stem Cell Research at Oslo University Hospital, Oslo. "AMI leads to a permanent loss of contractile elements in the heart and the formation of fibrous scarring. Regeneration of contractile myocardium has been a target of cell therapy for more than a decade," he added. According to Dr. Brinchmann, MSCs tolerate hypoxia, secrete angiogenic factors and have been shown to improve vascularization; thus, they have properties suggesting that they may beneficially impact AMI, chronic … Continue reading

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Nobel Prize Nominee Plastic Surgeon Joins Patients Medical’s Stem Cell Research Team

Posted: Published on November 30th, 2012

Dr. Paul A. Dreschnack Offers New Options for Those With Hair Loss. New York City, NY (PRWEB) November 29, 2012 Baldness can cause social anxiety, depression and many other emotional and psychological conditions. The solutions currently being offered such as transplants and pharmaceuticals can be uncomfortable or may compromise other aspects of the patients health, explains Dr. Dreschnack. In my work around the world, I strive to find ways for people to look good and feel well so that they are able to enjoy their lives fully. Stem Cell Therapy seems to be a new frontier that may be a way for patients to improve their quality of life. Dr. Dreschnack is a four-time Nobel Prize Nominee for his work with The India Project. He has traveled internationally, helping patients who need plastic, cosmetic and reconstructive surgery. He is now working with Dr. Kamau Kokayi, Medical Director of the New York Stem Cell Treatment Center (NYSCTC) at Patients Medical. We are excited that Dr. Dreschnack is joining our Stem Cell Research Team, says Dr. Kokayi. Dr. Dreschnack has been the recipient of numerous awards including the Distinguished Surgeon Award from the Association of Operating Room Nurses, a 2002 Rose Model … Continue reading

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Stem Cell 101: Mayo Clinic Expert Answers Commonly Asked Questions

Posted: Published on November 30th, 2012

Released: 11/28/2012 3:45 PM EST Source: Mayo Clinic Expert Available Newswise ROCHESTER, Minn. -- Next week, more than 1,200 people from 25 countries are expected to attend the 8th Annual World Stem Cell Summit in West Palm Beach, Fla., a gathering co-sponsored by Mayo Clinic. As those close to the science explore potential stem cell applications, many patients have questions about what stem cells are and how they are being used. Timothy Nelson, M.D., Ph.D., director of Mayo Clinics Regenerative Medicine Consult Service, answers some of the most commonly asked questions about stem cells: MULTIMEDIA ALERT: Multimedia resources, including a Medical Edge package, are available for journalists to download on the Mayo Clinic News Network. What are stem cells? Stem cells are the bodys raw materials. These cells have the ability to renew themselves or change to become specialized cells with a more specific function, such as blood cells, brain cells, heart muscle or bone. Where do stem cells come from? Adult stem cells are found in tissues of the body, such as bone marrow. Emerging evidence suggests that adult stem cells may be more versatile than previously thought and have the ability to create other types of cells. Amniotic … Continue reading

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Professors Critique Stem Cell Medical Tourism

Posted: Published on November 30th, 2012

A panel at the Harvard Law School Wednesday discussed the ethical debate over the use of embryonic stem cells in the United States, focusing on the burgeoning controversy surrounding the role of stem cell therapy in medical tourism. Medical tourism, in which patients travel internationally to gain access to specific health care services, has become increasingly common, panelists said. They said that reasons for medical tourism range from basic hip replacement surgery to black market organ sales. As most stem cell therapies are not approved in the United States, numerous patients are going abroad to countries like China and Russia where treatment is legal. Panelist I. Glenn Cohen, an assistant professor at the Law School, said that it was probable that a Chinese stem cell facility performs several hundred thousand of these treatments yearly. He said that numerous celebrities, including football quarterback Peyton Manning, have reportedly traveled abroad to receive stem cell treatment not approved by the FDA. A number of facilities claim to use stem cells to cure a wide array of diseases. University of Alberta law professor Timothy Caulfield, another panelist, pointed out that a simple Google search leads potential patients to a plethora of websites which claim … Continue reading

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International Stem Cell Corporation Announces Significant Progress Towards Clinical Development

Posted: Published on November 30th, 2012

CARLSBAD, CA--(Marketwire - Nov 29, 2012) - International Stem Cell Corporation ( OTCQB : ISCO ) (www.internationalstemcell.com) ("ISCO" or "the Company"), a California-based biotechnology company focused on the development of therapeutic products, today announced the achievement of a critical milestone towards the clinical development of its stem cell therapy. The Company's research and development team has created the world's first human clinical-grade stem cell lines with the ability to immune-match millions of individuals. ISCO's existing research-grade parthenogenetic stem cell lines, one of which contains the most common immune type in the Caucasian population and may be an immune-match to approximately 70 million people, are used in pre-clinical development. These new clinical-grade stem cell lines position ISCO to be able to conduct clinical trials in the United States. Dr. Semechkin, CEO and Co-Chairman of the Board, comments, "We've been working diligently for three years to perfect this technology, which was first developed by our scientific founder, Dr. Elena Revazova in Moscow, and I'm excited to report that we have been able to derive new stem cell lines in the United States under the US and California regulatory frameworks. I'm optimistic that the new parthenogenetic stem cell lines, by providing a potentially … Continue reading

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Nanomedicine hope for childhood cancer

Posted: Published on November 30th, 2012

Chemotherapy effectiveness improved in neuroblastoma patients Researchers from UNSW's Australian Centre for Nanomedicine have developed a nanoparticle that could improve the effectiveness of chemotherapy for neuroblastoma by a factor of five. Neuroblastoma is an aggressive childhood cancer that often leaves survivors with lingering health problems due to the high doses of chemotherapy required for treatment. Anything that can potentially reduce these doses is considered an important development. In a world-first, the UNSW researchers developed a non-toxic nanoparticle that can deliver and release nitric oxide (NO) to specific cancer cells in the body. The findings of their in vitro experiments have been published in the journalChemical Communications. When we injected the chemo drug into the neuroblastoma cells that had been pre-treated with our new nitric oxide nanoparticle we needed only one-fifth the dose, says co-author Dr Cyrille Boyer from the School of Chemical Engineering at UNSW. By increasing the effectiveness of these chemotherapy drugs by a factor of five, we could significantly decrease the detrimental side-effects to healthy cells and surrounding tissue. This synergistic effect between nitric oxide and chemotherapy drugs had previously been reported in other cancer cell lines, but the delivery compounds were potentially toxic and had very poor … Continue reading

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