Last, we tested and validated the hypothesis that methylphenidate (MPH)-induced hypophagia andweightlosswere mediated by the DRD1 LPBNsignalingpathway. Our findings suggest that the neural circuit from DA VTA neurons to DRD1 LPBN neurons plays a critical role in the suppression of consummatory feeding by governing food satiation.
Glucagon-like peptide 1 receptor (GLP1R) agonists like semaglutide driveweightlossthrough the brain, but insights into their intracellularsignalingmechanisms are lacking. Although canonically GLP1Rs signal through the stimulatory alpha Gs protein, we find that semaglutide utilizes both Gs- and Gq-signalingpathways in GLP1Rs in the area postrema (AP)—the primary site of semaglutide ...
This particular example perfectly highlights why Causes Weight Loss Via Hindbrain Signaling is so captivating.
Here, we focus on the current understanding of the neuroendocrine aspects of gut-brainsignalingand highlight emerging humoral and neural pathways. However, while the enteric nervous system and microbiota have significant roles in gut-brainsignaling, we direct the reader to designated reviews [1-4
GLP-1RAs, and more recently the FDA-approved GLP-1R/GIP receptor dual agonist tirzepatide, induceweightlossand improve metabolic outcomes through a distributed system of GLP-1Rs across the gut-brain axis and have dramatically raised the bar for the development of future antiobesity therapies.
Furthermore, the DRD1 LPBNsignalingmanifests the central mechanism in methylphenidate-induced hypophagia. In conclusion, our study illuminates ahindbrainDAergic circuit that controls feeding through dynamic regulation in satiety response and meal structure.
