This Week in PNAS

In the early, online edition of the Proceeding of the National Academy of Sciences, researchers from Sweden, Canada, and the US explore genetic patterns associated with adaptive evolution in Atlantic herring. The team re-sequenced the genomes of 40 to 50 fish apiece from half a dozen Atlantic herring population at sites in the North Atlantic.

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Researchers test gene therapy targeting a different cancer protein in a new trial, the New York Times reports.

Pennsylvania State University researchers found that salivary microRNAs could predict which kids would have longer concussion symptoms, according to NPR.

The Associated Press reports Alex Azar, the new Department of Health and Human Services secretary nominee, made millions of dollars as a pharmaceutical executive.

In PNAS this week: immune profiling of breast cancer, transposable element patterns in rice, and more.