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Embryonic stem cells are pictured through a microscope viewfinder ...
AFP/File
Wed Aug 20, 6:59 PM ET
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Embryonic stem cells are pictured through a microscope viewfinder in a laboratory. Scientists have found two genetic triggers for producing healthful "good" fat in mice, pointing the way to a new treatment for obesity, according to a pair of studies published Thursday.

(AFP/File/Mauricio Lima)

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