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Thursday, 14 July 2011 02:19 |
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Researchers at the Salk Institute have been able to genetically incorporate "unnatural" amino acids, such as those emitting green fluorescence, into neural stem cells, which then differentiate into brain neurons with the incandescent "tag" intact.
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Thursday, 14 July 2011 01:51 |
 For the first time since stem cells were discovered 50 years ago, scientists have isolated a human blood stem cell in its purest form -- as a single stem cell capable of regenerating the entire blood system. This breakthrough opens the door to harnessing the power of these life-producing cells to treat cancer and other debilitating diseases more effectively.
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Tuesday, 12 July 2011 00:03 |
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Researchers have uncovered a new target that could stop the growth of glioblastoma, a deadly form of brain cancer. In the July 8th issue of the journal Cell, a Cell Press publication, a new study identifies an enzyme found in glioma stem cells that allows them to grow and seed tumors. Importantly,
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Saturday, 09 July 2011 01:37 |
 Researchers at the Johns Hopkins University School of Medicine have developed a technique that delivers gene therapy into human brain cancer cells using nanoparticles that can be freeze-dried and stored for up to three months prior to use.
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Thursday, 07 July 2011 01:53 |
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 A US politician has reintroduced a bill to codify President Barack Obama’s 2009 policy to ease restrictions on federally funded research using human embryonic stem (HES) cells (see previous news).
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Thursday, 07 July 2011 00:00 |
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Applications for stem cells were once considered ‘futuristic.’ But today’s research is ushering in a new era in which these cells are a source of great hope for use in regenerative medicine, as well as in the development of new drugs to prevent and treat illnesses including diabetes, Parkinson’s disease, spinal cord injury and macular degeneration.
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Tuesday, 05 July 2011 00:17 |
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Adult stem cells and progenitor cells may not come with a clean genetic slate after all. That's because a new report in the FASEB Journal shows that adult stem or progenitor cells have their own unique "epigenetic signatures," which change once a cell differentiates.
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Saturday, 02 July 2011 01:33 |
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A team of North Carolina State University researchers has discovered more about how a gene connected to the production of new brain cells in adults does its job. Their findings could pave the way to new therapies for brain injury or disease.
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Thursday, 30 June 2011 00:48 |
 For the first time, blood vessels created in the lab from donor skin cells were successfully implanted in patients. Functioning blood vessels that aren't rejected by the immune system could be used to make durable shunts for kidney dialysis, and potentially to improve treatment for children with heart defects and adults needing coronary or other bypass graft surgery.
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Thursday, 30 June 2011 00:10 |
 Scientists have long known that, to form tissue structures and organs, stem cells migrate and differentiate in response to the other cells, matrix, and signals in their environment. But not much is known about these developmental processes nor how to distinguish between normal and pathological behaviors.
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Thursday, 14 July 2011 02:16 |
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 Patients with hard-to-treat chest pain reported feeling better, and could exercise longer, after doctors injected stem cells taken from their bone marrow into their heart, according to a new study in Circulation Research.
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Tuesday, 12 July 2011 01:10 |
 For the past decade, researchers have tried to reprogram the identity of all kinds of cell types. Heart cells are one of the most sought-after cells in regenerative medicine because researchers anticipate that they may help to repair injured hearts by replacing lost tissue.
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Saturday, 09 July 2011 01:45 |
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For nearly two decades, the medical world and the American public have grappled with the lightning-rod topic of stem cells, in particular the controversy surrounding cells from human embryos. But when researchers four years ago successfully "reprogrammed" adult body cells to become stem cells, some thought the ethical debate was nearly over. Those redirected cells, known as induced pluripotent cells, or iPS cells, show potential as therapy.
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Saturday, 09 July 2011 01:29 |
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A new animal study from Europe has drawn an association between pregnant mothers' sodium intake and their newborn's kidney development. Among the most significant aspects of the study's findings is that either too much or too little salt during pregnancy had an adverse effect on the prenatal development of the offspring's kidneys.
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Thursday, 07 July 2011 00:51 |
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If Aubrey de Grey's predictions are right, the first person who will live to see their 150th birthday has already been born. And the first person to live for 1,000 years could be less than 20 years younger.
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Tuesday, 05 July 2011 00:18 |
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Ever since an ordinary office inkjet printer had its ink cartridges swapped out for a cargo of cells about 10 years ago and sprayed out cell-packed droplets to create living tissue, scientists and engineers have never looked at office equipment in quite the same way.
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Tuesday, 05 July 2011 00:15 |
 A Johns Hopkins team has discovered in young adult mice that a lone brain stem cell is capable not only of replacing itself and giving rise to specialized neurons and glia -- important types of brain cells -- but also of taking a wholly unexpected path: generating two new brain stem cells.
A report on their study appears June 24 in Cell.
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Saturday, 02 July 2011 01:26 |
 While research using human embryonic stem cells has roused political controversy for almost two decades, little has been done to scientifically assess American attitudes on the subject. New research from the University of Nevada, Reno provides decision-makers with a much clearer picture of how their constituents truly feel about the subject.
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Thursday, 30 June 2011 00:14 |
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A clinical trial at Banner Heart Hospital could give hope to people with poor leg circulation and help those with the worst cases avoid amputation.
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Tuesday, 28 June 2011 02:00 |
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Scientists from the Genome Institute of Singapore (GIS), an institute of the Agency for Science, Technology and Research (A*STAR), in collaboration with the Cancer Science Institute of Singapore (CSI), have discovered how the body uses a single communication system to decide the fate of stem cells.
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