Gut Hormone LEAP2 Shown to Quiet Hunger Neurons in Mice

Researchers working with mice have identified a lasting way that the gut derived hormone LEAP2 shuts down appetite signaling in the brain. According to the study abstract on PubMed, LEAP2 acts on orexigenic neurons, the cells in the hypothalamus that normally promote feeding, and produces an inhibitory effect that persists well beyond the hormone's immediate presence. This is notable because many appetite related signals act briefly and then fade, while this paper, published in the Proceedings of the National Academy of Sciences, points to a more durable brake on hunger circuitry.

LEAP2 has drawn research interest as a natural counterbalance to ghrelin, the hormone that stimulates appetite and binds the same receptor. Where ghrelin revs up hunger neurons, LEAP2 appears to do the opposite, and this work suggests the suppression can outlast a single dose of the hormone in the animal model studied. The findings are preclinical and specific to mice, so they describe a mechanism rather than a tested intervention in people. Still, understanding how gut hormones can reset hunger circuits for extended periods adds detail to the broader picture of appetite regulation that has become a major research focus alongside GLP-1 based approaches.

This article is for education only. It is not medical advice. Compounds discussed here are sold for research purposes. Talk to a licensed clinician before making health decisions.