<prompt> Appetite suppressors are all EXCEPT :Melanocyte stimulating hormoneMelanocyte corticotropic releasing hormoneNeuropeptide YLeptin  <response>: Alpha-Melanocyte-Stimulating Hormone alpha-MSH and corticotropin-releasing hormone CRH both suppress food intake.NPY is known to be an extremely potent stimulator of feeding behavior.Leptin appears to act, at least in part, by inhibiting NPY synthesis and release in the hypothalamus. 