Abstract
The melanin-concentrating hormone (MCH) is an important neuropeptide, initially described as an orexigenic factor, but associated with a lot of physiological actions, especially in motivated behaviors. Exclusively during lactation is possible to detect the mRNA expression of prepro-MCH (ppMCH mRNA) and immunoreactivity to MCH in the medial preoptic area (MPOA), reaching its peak intensity…