Unveiling of a messenger: Gut microbes make a neuroactive signal.

Chatterjee, Poulami; Dassama, Laura M K · Cell · 2024

editorial · Level V

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Abstract

Gut microbes are known to impact host physiology in several ways. However, key molecular players in host-commensal interactions remain to be uncovered. In this issue of Cell, McCurry et al. reveal that gut bacteria perform 21-dehydroxylation to convert abundant biliary corticoids to neurosteroids using readily available H<sub>2</sub> in their environment.

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