Following these key discoveries about GLP-1, the next step was to turn it into a medication
Langer and colleagues, in a March 2026 Cell Reports Medicine paper combining four preclinical mouse studies with a proof-of-concept clinical trial, performed what may be the first published direct measurement of muscle function alongside body composition in patients on a GLP-1 RA
The reward circuit and related structures may participate in the interactions between the GLP-1 pathway and psychoactive substances, as GLP-1Rs are expressed in key brain regions like the ventral tegmental area (VTA) and the nucleus accumbens (NAc) that control reward behaviors [54]
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