In 1990, members of the Havasupai tribe in Arizona gave researchers at Arizona State University some DNA samples in order to see if the scientists could find a cause for the tribe's high incidence of diabetes. But, as the New York Times' Amy Harmon reports, the tribe sued when they found out that the geneticists were also using the blood samples to study mental illness and theories of the tribe's geographical origins.

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 Senator Lamar Alexander (R-Tenn.), who chairs the Senate health committee, will be retiring at the end of his term, Stat News reports.

UCSF researchers find that having two X chromosomes may contribute to women's longer lifespans, according to Discover's D-brief blog.

The Wall Street Journal reports on the US Centers for Disease Control and Prevention's use of genetic approaches to study foodborne illnesses.

In PNAS this week: immune cell profiling of wild baboons by social status, metabolomics profiling of esophageal tumors, and more.