Study wrapper · #1384
Co-agonism of GLP-1R and CTR/AMYR in the lateral dorsal tegmental nucleus produces additive effects on homeostatic and motivated feeding.
Editor's note
Careful mechanistic work using direct intra-brain drug delivery in rodents — a level of anatomical precision human studies cannot reach, but also a route of administration with no clinical parallel. It supplies a plausible neural substrate for why cagrilintide-semaglutide co-agonism outperforms monotherapy without saying anything about systemic dosing in people. Solid basic science from an established feeding-neuroscience group, appropriately framed by its authors.
Plain-language abstract
A rodent brain-mapping study found that GLP-1 and amylin receptor agonists act on largely separate neuron populations in a brainstem region called the LDTg, and hitting both receptor systems at once suppressed feeding and food motivation more than either alone — mechanistic support for combinations like CagriSema (cagrilintide plus semaglutide).