Stem cell contamination worries
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Embryonic stem cells are contaminated with an animal molecule, meaning they could not be used to treat humans, say researchers.
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A Chinese neurosurgeon arouses controversy for using cells from aborted foetuses to help cure patients affected by spinal and brain damage.
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The panel of experts that advises President Bush on bioethical issues heard descriptions Friday of two new laboratory techniques that may provide a way to get large numbers of medically promising stem cells without creating or killing human embryos.
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A debate over an unproven hypothesis, which says cancers are fed by cancerous stem cells, could affect the direction of research.
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A flurry of recent research has raised alarm about the safety of a new generation of stents that have quickly become the most commonly used devices for treating clogged arteries, creating widespread concern about how to care for millions of heart-disease patients.
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Researchers are using human embryonic stem cells to determine the toxicity of potential pharmaceuticals.
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If a new method works, scientists could derive embryonic stem cells -- without destroying embryos -- from more than 3,000 cells discarded annually at fertility clinics. In Bodyhack.
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Batches of human embryonic stem  cells available under the strict policies of the U.S.  government are contaminated with an animal molecule and are  probably no good for using to treat people, scientists reported  on Sunday.
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Trying to put the Hwang Woo-suk scandal behind them, Korean scientists seek methods for deriving stem cells without killing embryos. In Bodyhack.
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Experts are set to make a significant announcement on the future of stem cell research  in Scotland.
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The first study of a large group of workers breathing air with very low levels of benzene suggests that the chemical may harm the bone marrow, the body&#39;s main factory for blood cells, even
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People on HIV drug Viracept are being warned over a possible contamination with cancer-causing chemicals.
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San Diego scientists have identified a protein in embryonic stem cells that helps weed out mutations as the cells proliferate. Its action may protect a developing embryo from DNA damage that could lead to cancer later in life.
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A U.S. study suggests low levels of toxic substances cause critical stem cells in the central nervous system to prematurely stop functioning.
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Recently we have seen dis- cussions by the president and first lady and two op-ed pieces about stem cell research, one on Aug. 12 by Richard Cohen and one on Aug. 15 by Michael Kinsley. Only the column by Mr. Kinsley came anywhere close to presenting the ...
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Stem cells, which are believed to hold great medical promise, also play a lead role in fuelling the formation and growth of brain tumours.
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The Securities and Exchange Commission is scrutinizing biotechnology companies as part of a wider effort to ensure that companies don&#39;t mislead investors