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Loss of Confidence

A Harvard researcher considered to be "a rising star in the field of stem cell biology" has retracted a paper she co-authored in Nature because of doubts surrounding the reliability of the research examining the aging of blood stem cells, says the Boston Globe's Carolyn Johnson. Amy Wagers, a researcher at the Joslin Diabetes Center, signed the retraction along with two of the co-authors, though the lead author of the article — who was a postdoc in Wagers' lab — has so far not signed, Johnson says. The retraction states that a reexamination of the study "raised serious concerns with some of the reported data" and that these concerns undermined the three authors' confidence in the conclusions reached in the study. However, Johnson says, the retraction doesn't make it clear what kind of mistake was made, and whether there was misconduct involved.

According to the Retraction Watch blog, the paper has been cited 13 times. Wagers was named The Scientist's Scientist to Watch in January 2008 because of three of her papers that were cited 101, 446, and 624 times, Retraction Watch adds.

The Scan

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