Some cardiac patients that receive a stent are prescribed blood thinners to keep platelets from building up inside it. But for about 70 percent of patients with Asian ancestry and 30 percent of patients with African or European ancestry, a genetic variant will prevent the blood thinner from working properly, says Technology Review's Susan Young.

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Senator Elizabeth Warren (D-Mass.) has released the results of a genetic ancestry analysis, the Boston Globe reports.

Retraction Watch's Ivan Oransky and Adam Marcus report that Harvard Medical School and Brigham and Women's Hospital have recommended that more than 30 papers from a former researcher be retracted.

Thomas Steitz, who won the 2009 chemistry Nobel Prize for his ribosome work, has died, the Washington Post reports.

In PLOS this week: mechanisms for genes implicated in coronary artery disease, rumen microbes and host genetics influence cow methane production, and more.