This Week in PNAS

In a paper published online in advance in PNAS this week, the University of Texas Southwestern Medical Center's Robert Frost and Eric Olson show that the Let-7 family of miRNAs "regulates glucose metabolism in multiple organs." In a mouse model, Frost and Olson found evidence to suggest "anti-miR-induced Let-7 knockdown as a potential treatment for type 2 diabetes mellitus."

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The UK's Human Fertility and Embryology Authority calls for consumer genetic testing companies to warn customers that testing could uncover family secrets, according to the Guardian.

The New York Times reports that United Nations delegates have been discussing how to govern the genetic resources of the deep sea.

Researchers have transplanted edited cells into mice that appear to combat cocaine addiction, New Scientist reports.

In PNAS this week: analysis of proteolytic enzymes secreted by circulating tumor cells, phylogenetic study of Fv1 evolution, and more.