More questions raised at Stem Cell Institute

The University of Minnesota is looking into more allegations of data manipulation in research papers published out of its prestigious Stem Cell Institute.

The current issue of a British Magazine called "New Scientist" points to images in seven research papers that appear to be manipulated or duplicated. All the papers were authored by researcher Jizhen Lin. The magazine says it contacted the U of M in April and an inquiry started in mid-July.

Mr. Lin published the papers in question between 2001 and 2008. He told the Star Tribune newspaper that he did not try to falsify data.

It's not the University's first run in with New Scientist. The magazine found similar problems in work by the Stem Cell Institute's former director, Catherine Verfaillie as well as other researchers. Three research papers have since been corrected and another was retracted.

Tom Crann talked more about this with Arthur Kaplan, director of the Center for Bioethics at the University of Pennsylvania. Kaplan used to hold the same position at the University of Minnesota's Center for Biomedical Ethics.

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