In March 1937, Hans Krebs and his colleague conducted an experiment observing the metabolic rate decline of the minced breast of a freshly killed pigeon suspended in solution. According to an article in The Scientist, by adding a salt of citric acid, they found they could keep the tissue "alive" for three times as long, and additional experiments showed the cyclical nature of the pathway which regenerates citric acid with each cycle and releases ATP.

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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.