Monthly Archives: July 2012

Questions and answers about menopause and women's health

Posted: Published on July 9th, 2012

By Jane Weaver, Deputy health editor When the government-funded Womens Health Initiative study was abruptly halted in 2002, the impact was huge, swift and charged with emotion. Until the first results were released from the groundbreaking research, most doctors and older women believed that taking hormone replacement pills would protect their hearts and keep them young,healthy and hot flash-free. Courtesy of Dr. Vivian Pinn Instead the hormone drugs -- to the surprise of researchers at the National Institutes of Health who had founded the study -- were shown to cause a small, but significant increase in the risk of breast cancer. Thousands of women participating in the study were instructed to stop taking the drugs, a combination of estrogen and progestin, and contact their doctors. The findings affected millions of American women taking hormone therapy. Few doctors had clear answers for their menopausal patientsbecause the medical community itself had been caught off guard by the results. There was plenty of frustration (Will my hot flashes return?), confusion (Was taking estrogen alone safe?) and fear (Am I at risk of heart attack, breast cancer or stroke?). When the Womens Health Initiative started in 1991, the 15-year randomized clinical trial was one … Continue reading

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Fallout from hormone study

Posted: Published on July 9th, 2012

Denny Henry / for msnbc.com Ingrid Gorman, a 48-year-old senior vice president at Discovery Communications, said she never discussed menopause with her mother, but wants to now that she's approaching that age. "I don't even remember discussing menstruation with her when I was little," she said. By Maggie Fox When her aunt died of breast cancer, Mari-Anne Pisarri had no doubts about what caused it. She was certain it was estrogen pills. So when the Womens Health Initiative released their findings, I thought, Well, of course, Aunt Betty could have told them that years ago, said Pisarri, a 56-year-old partner at a Washington, D.C. law firm. Pisarri is one of tens of millions of U.S women who have no intention of taking hormone replacement therapy to ease the symptoms of menopause. I am just not willing to take the risk, she said. Like so many women in the 1970s, 1980s and 1990s, Pisarris aunt got estrogen as a matter of course when she entered menopause. Doctors routinely prescribed hormones in the belief that HRT prevented heart disease, cancer and the bone-thinning disease osteoporosis. The federal government decided to check out these assumptions, and commissioned the Womens Health Initiative a giant … Continue reading

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UCLA researcher discovers epigenetic links in cell-fate decisions of adult stem cells

Posted: Published on July 9th, 2012

Public release date: 6-Jul-2012 [ | E-mail | Share ] Contact: Brianna Deane bdeane@dentistry.ucla.edu 310-206-0835 University of California - Los Angeles The ability to control whether certain stem cells ultimately become bone cells holds great promise for regenerative medicine and potential therapies aimed at treating metabolic bone diseases. Now, UCLA School of Dentistry professor and leading cancer scientist Dr. Cun-Yu Wang and his research team have made a significant breakthrough in that direction. The scientists have discovered two key epigenetic regulating genes that govern the cell-fate determination of human bone marrow stem cells. Wang's new research is featured on the cover of the July 6 issue of Cell Stem Cell, the affiliated journal of the International Society for Stem Cell Research. The groundbreaking study grew out of Wang's desire to better understand the epigenetic regulation of stem cell differentiation, in which the structure of genes is modified while the sequence of the DNA is not. He and his team found that KDM4B and KDM6B, two gene-activating enzymes, can promote stem cells' differentiation into bone cells by removing methyl markers from histone proteins. This process occurs through the activation of certain genes favoring a commitment to one lineage and the concurrent … Continue reading

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Discovery of epigenetic links in cell-fate decisions of adult stem cells paves way for new osteoporosis treatments

Posted: Published on July 9th, 2012

ScienceDaily (July 9, 2012) The ability to control whether certain stem cells ultimately become bone cells holds great promise for regenerative medicine and potential therapies aimed at treating metabolic bone diseases. Now, UCLA School of Dentistry professor and leading cancer scientist Dr. Cun-Yu Wang and his research team have made a significant breakthrough in that direction. The scientists have discovered two key epigenetic regulating genes that govern the cell-fate determination of human bone marrow stem cells. Wang's new research is featured on the cover of the July 6 issue of Cell Stem Cell, the affiliated journal of the International Society for Stem Cell Research. The groundbreaking study grew out of Wang's desire to better understand the epigenetic regulation of stem cell differentiation, in which the structure of genes is modified while the sequence of the DNA is not. He and his team found that KDM4B and KDM6B, two gene-activating enzymes, can promote stem cells' differentiation into bone cells by removing methyl markers from histone proteins. This process occurs through the activation of certain genes favoring a commitment to one lineage and the concurrent deactivation of genes favoring other lineages. The findings imply that chemical manipulation of these gene-activating enzymes may … Continue reading

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Stem Cell Trickery

Posted: Published on July 9th, 2012

A postdoctoral research fellow at Emory University falsifies stem cell research data. By Cristina Luiggi | July 9, 2012 Istockphoto A former postdoc in the Department of Medicine at Emory University was found guilty of falsifying data presented at national and laboratory meetings, in ongoing and pending National Institutes of Health (NIH) grants, and in manuscripts submitted to five high-profile journals, according to a report by the Office of Research Integrity (ORI)published last Friday (July 6). Sinae Kim, who joined the lab of Emory stem cell biologist Young-sup Yoon in 2008 after a 1-year stint as a postdoc at a university in Seoul, Korea, fudged immunocytochemistry images and real-time reverse transcription polymerase chain reaction (RT-PCR) results by using data she had obtained from her previous human embryonic stem cell (hESC) research in Korea to confirm the generation, differentiation, and verification of human induced pluripotent stem cells (iPSCs), the reported stated. Among her transgressions, Kim shared mouse and human iPSC cell lines with some of her lab mates that had supposedly been generated from the peripheral blood of coronary artery disease patients, when in fact she knew they were of other origin, the report stated. The falsified data affect 3 funded … Continue reading

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Sea urchins could contain the genetic key to curing some diseases

Posted: Published on July 9th, 2012

(Phys.org) -- The purple sea urchin could help develop cures for diseases such as Alzheimers and cancer, scientists at the University of St Andrews have discovered. Creatures, such as the sea urchin and sponge, have been discovered to have a special genetic sequence previously only thought to be used by certain viruses. Now these sea creatures could inform scientists how to produce a therapeutic response in our own cells. This latest finding builds on the earlier discovery of a short genetic sequence (2A) caused by viruses which can be used to return cells to a stem-cell like state allowing them to be manipulated and used for special treatments. Martin Ryan, Professor of Translational Virology at the University of St Andrews, was the key researcher in that discovery. He said: You could put two or more different genes into one cell, but each individual gene would be expressed at very different levels. This process allows you to daisy-chain multiple genes into a single gene, but the different proteins made from each part of the new gene are expressed at the same level and within the same cell - which is a massive step forward. This sequence was first discovered in Foot-and-Mouth … Continue reading

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Knome Appoints Heidi L. Rehm, PhD, to Scientific Advisory Board

Posted: Published on July 9th, 2012

CAMBRIDGE, Mass.--(BUSINESS WIRE)-- Knome Inc., the human genome interpretation company, announced today that a leading clinical geneticist, Heidi Rehm, PhD, has joined the companys scientific advisory board. Dr. Rehm is highly respected and influential figure in clinical genomics, said Martin Tolar, MD, PhD, Chief Executive Officer of Knome. We are very pleased to welcome Dr. Rehm to our scientific advisory board and look forward to her guidance as we deploy our informatics and interpretation technology into the clinic. Dr. Rehm is a board-certified clinical geneticist who is currently Chief Laboratory Director of theLaboratory for Molecular Medicine at Partners HealthCare Center for Personalized Genetic Medicine as well as Assistant Professor of Pathology and Director of the Clinical Molecular Genetics Training Program at Harvard Medical School. Her research focuses on the rapid translation of new genetic discoveries into clinical tests and on bringing novel technologies and software systems into molecular diagnostics to support the integration of genetics into clinical use. Dr. Rehm also conducts research on hearing loss, Usher syndrome, cardiomyopathy and the use of information technology in enabling personalized medicine. She received a PhD in Genetics from Harvard University and conducted postdoctoral work in Neurobiology, followed by a fellowship at Harvard … Continue reading

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Capricor Announces FDA Approval To Initiate ALLSTAR Trial of Allogeneic Stem Cell Therapy In Patients Following Heart …

Posted: Published on July 9th, 2012

LOS ANGELES--(BUSINESS WIRE)-- Capricor, Inc., a privately held biotechnology company focused on regenerative medicine, today announced that the U.S. Food and Drug Administration has approved initiation of its Investigational New Drug (IND) application for the ALLSTAR study, which will use allogeneic cardiac-derived stem cells (CDCs) to treat patients following large myocardial infarctions (MI). ALLSTAR will study the use of CAP-1002 delivered directly into a coronary artery from thirty days to one year following a heart attack. The trial will have a 14 patient lead in phase and is planned as a 260 patient, twenty center randomized controlled trial. ALLSTAR will study a variety of safety and effectiveness endpoints with the goal of demonstrating sufficiently strong data to permit an eventual Phase III trial as a path to commercialization of CAP-1002. ALLSTAR is predicated on the positive results of the landmark CADUCEUS trial that showed approximately 50 percent reduction of scar size and 50 percent more viable muscle in the infarction zones of patients studied one year after a heart attack. ALLSTAR will use donor cells whereas CADUCEUS used each patients own CDCs. The shift from autologous to allogeneic cells is supported by extensive pre-clinical evidence of safety and effectiveness and … Continue reading

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NeoStem CEO's Letter to Shareholders

Posted: Published on July 9th, 2012

NEW YORK, July 9, 2012 (GLOBE NEWSWIRE) -- Dear NeoStem Shareholders, NeoStem (NYSE MKT:NBS) is rapidly emerging as a technology and market leading company in the fast developing cell therapy market. Our multifaceted business strategy combines a state-of-the-art contract development and manufacturing organization (CDMO) with a medically important cell therapy product development program enabling immediate and long-term revenue growth opportunities. Our service business and pipeline of proprietary cell therapy products work in concert, giving NeoStem a competitive advantage that is unique to the biotechnology and pharmaceutical industries. Supported by an experienced scientific and business management team and a dynamic patent and patent pending (IP) portfolio, NeoStem is well positioned to succeed. We would like to take a moment to update you on the following recent developments and important near term catalysts for the second half of 2012: In April 2012, Jonathan Sackner-Bernstein, MD, FACC joined the Company as Vice President of Clinical Development and Regulatory Affairs. Jonathan brings to the Company over 20 years of experience as a clinical cardiologist and medical researcher with leadership in healthcare management. Jonathan joined the team to advance Amorcyte's PreSERVE AMI Phase 2 trial and to provide regulatory support for NeoStem's product pipeline. His … Continue reading

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Capricor Announces FDA Approval To Initiate ALLSTAR Trial of Allogeneic Stem Cell Therapy In Patients Following Heart …

Posted: Published on July 9th, 2012

LOS ANGELES--(BUSINESS WIRE)-- Capricor, Inc., a privately held biotechnology company focused on regenerative medicine, today announced that the U.S. Food and Drug Administration has approved initiation of its Investigational New Drug (IND) application for the ALLSTAR study, which will use allogeneic cardiac-derived stem cells (CDCs) to treat patients following large myocardial infarctions (MI). ALLSTAR will study the use of CAP-1002 delivered directly into a coronary artery from thirty days to one year following a heart attack. The trial will have a 14 patient lead in phase and is planned as a 260 patient, twenty center randomized controlled trial. ALLSTAR will study a variety of safety and effectiveness endpoints with the goal of demonstrating sufficiently strong data to permit an eventual Phase III trial as a path to commercialization of CAP-1002. ALLSTAR is predicated on the positive results of the landmark CADUCEUS trial that showed approximately 50 percent reduction of scar size and 50 percent more viable muscle in the infarction zones of patients studied one year after a heart attack. ALLSTAR will use donor cells whereas CADUCEUS used each patients own CDCs. The shift from autologous to allogeneic cells is supported by extensive pre-clinical evidence of safety and effectiveness and … Continue reading

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