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Dietary changes rapidly alter T cell metabolism, but the effects can be reversed.

The chemical was found in all 29 lung fluid samples tested.

An on-off enzyme switch controls metastasis in mice. 

The researchers say these findings challenge dogma in the field, which has given the liver all credit for metabolizing alcohol.

Changes in diet can cause gut microbes to produce acetate, which in turn stimulates insulin secretion and obesity in rodents, scientists show.

Acetate, a short-chain fatty acid released following the fermentation of dietary fiber in the gut, accumulates in the brain and can affect appetite in mice.

Editor’s choice in microbiology

Male scientists stress mice out; using SCNT to reprogram adult cells; acetate can reach mouse brain, reduce appetite; WHO sounds “post-antibiotic era” alarm

An odorant found in the pee of pregnant mice—and in bananas—induces stress but also relieves pain in male mice, a study shows.

Renewing the aging gut microbiome holds promise for preventing inflammatory brain and eye degeneration.