Suppression of AMPK in vitro downregulates bHLH factors and increases appetite and reduces satiety neuropeptide expression. (A) Control NPCs were treated in vitro with AMPK inhibitor (Compound C 1, 5, 25 µm; □) or vehicle (■). NPC protein expression with representative immunoblots of pAMPK, bHLH factors (Mash1, Ngn3) and (B) neuropeptides (POMC, AgRP). Values are fold change of vehicle treated (N = 5; mean ± SE). * p < 0.001 vs control. Abbreviations: Compound C (Dorsomorphin dihydrochloride); pAMPK (phosphorylated 5’ AMP-activated protein kinase); Mash1 (Achaete-scute complex homolog-1); Ngn3 (neurogenin 3); POMC (proopiomelanocortin); AgRP (agouti-related protein); GAPDH (Glyceraldehyde 3-phosphate dehydrogenase).