Endocrine Abstracts

: Hypothalamic regulation of pituitary adrenocorticotropic hormone (ACTH) secretion switches to dopamine (DA) with a parallel loss of DAerg control of alpha-melanocyte-stimulating hormone (α-MSH) release in lactating dams. It has been also shown that dephosphorylation/inactivation of tyrosine hydroxylase (TH) in terminals of DA neurons at the median eminence is required not only for suckling-induced PRL release but also for ACTH responses. The aim of the present study was...