Local Drd1-neurons input to subgroups of arcuate AgRP/NPY-neurons.

ABSTRACT: Obesity is a pandemic afflicting more than 300 million people worldwide, driven by consumption of calorically dense and highly rewarding foods. Dopamine (DA) signaling has been implicated in neural responses to highly palatable nutrients, but the exact mechanisms through which DA modulates homeostatic feeding circuits remains unknown. A subpopulation of arcuate (ARC) agouti-related peptide (AgRP)/neuropeptide Y (NPY) (ARC^AgRP/NPY+) neurons express the D(1A) dopamine receptor (Drd1) and are stimulated by DA, suggesting one potential avenue for dopaminergic regulation of food intake. Using patch clamp electrophysiology, we evaluated the responses of ARC Drd1-expressing (ARC^Drd1+) neurons to overnight fasting and leptin. Collectively, ARC^Drd1+ neurons were les

SUBMITTER: Chadwick SR 

PROVIDER: S-EPMC9250019 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature