adenosine monophosphate-activated protein kinase (AMPK) signaling pathway
altered energy homeostasis pathway +
altered peptide and protein hormone signaling pathway +
angiotensin signaling pathway +
citric acid cycle pathway
corticotropin-releasing hormone signaling pathway
glucagon signaling pathway
insulin signaling pathway +
leptin system pathway
Leptin acts on two populations of hypothalamic neurons that express orexigenic (feeding inducing) and anorexigenic genes, respectively. Leptin reduces the expression of genes from the former and enhances the expression of genes from the latter neurons. The leptin mediated response acts primarily via Jak-dependent activation of STAT.