Science

Scientists reverse liver cell aging and cut Alzheimer’s-linked protein in half

USC researchers found that an experimental drug restored aging liver cells in rats, cutting levels of an Alzheimer’s-linked protein in half and bringing bad cholesterol down to youthful levels.

✦ Extractive summary — built from the sources' own reporting•From 1 source•1 min read•Updated November 3, 2026, 12:34 AM UTC

A surprising discovery suggests that rejuvenating the liver could help protect against Alzheimer’s disease and heart disease.

The treatment also revived a previously unknown communication system that helps liver cells remove harmful substances from the bloodstream.

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