Semaglutide engages distinct brainstem-to-hypothalamus circuits to suppress motivated feeding and regulate ketogenesis and energy expenditure

Studied

Neural-pathway experiments examined how semaglutide-responsive brain circuits influence feeding, ketone production and energy use.

Who / model

Researchers used light-controlled stimulation of specific brainstem-to-hypothalamus nerve pathways. Species, sample size and experiment durations are not stated in the abstract.

Studied dose & schedule

Dose and schedule have not yet been extracted for this summary.

Found

Stimulation suppressed highly motivated feeding while leaving normal active-phase chow intake unchanged. One pathway increased ketone production and reduced weight independently of food intake; another lowered energy expenditure. Stimulating semaglutide-responsive pathways reproduced key effects.

Limits

Study limitations were not stated in the abstract. Methodological quality has not been appraised.

Read summary source ↗ · Prepared 9/15/2026 · AI-assisted, source-based summary