Stem Cell, No Go

From The International Herald Tribune:

A radical new treatment for heart attack patients turns out to be wholly ineffective when tested under rigorous conditions, researchers in Germany say in a report published Wednesday that severely undercuts an apparently promising form of stem cell therapy.

Their finding, reported in The Journal of the American Medical Association, renews a longstanding debate among medical researchers as to whether the basic biology of stem cells needs to be far better understood before testing cell-based therapies in patients is worthwhile.

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