A Mixed Bag

Using genetic testing before prescribing blood thinners has shown mixed results, NPR's Shots blog says. The blood thinner Plavix does carry a warning saying that people whose genes show they are a slow metabolizer of the drug may not get a benefit from taking it, but doctors aren't sure if they should test patients and, if they do, they don't know what to do if a patient is a slow metabolizer.

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Magdalena Skipper, the incoming editor-in-chief of Nature, speaks with NPR's Weekend Edition Sunday.

Genetic genealogy has led to an arrest in another cold case, dating back to 1987.

Wired reports that 23andMe is trying to bolster its outside collaborations.

In PLOS this week: mutation in second gene widens clinical symptoms of people with ADD3 mutations, comparative genomic analysis of Pseudovibrio, and more.