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Canadian scientists have studied how methylation patterns can affect suicidal behavior. Researchers at the University of Western Ontario, Carleton University, and the University of Ottawa looked at brain tissue from 20 people, 10 of whom had committed suicide, and found that the rate of methylation in the suicide brain tissue was almost 10 times that of the normal group.

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The US Department of Justice has proposed a rule change to enable DNA to be collected from migrants, the Associated Press reports.

Bernard Fisher, a surgeon who changed how breast cancer is treated, has died at 101, the New York Times reports.

Washington Post columnist writes that she is skeptical about DNA-based diets.

In PNAS this week: recurrent inactivation of DEPDC5 in gastrointestinal stromal tumors, taxonomic reliability of GenBank sequences, and more.