Analyze how specific documents activate the features of the SAE. Select a dataset, a run and a document to begin.
1503
Details List
Document Content
Melatonin receptors on ovine pars tuberalis: characterization and autoradiographicai localization.
Abstract The functional significance of the pars tuberalis (PT) of the mammalian adenohypophysis has remained an enigma (1, 2). One view of its function is that it acts as an auxiliary gland to support the endocrine role of the pars distalis (PD) (2), as it has been shown to contain immunocytochemically identifiable thyrotrophs and gonadotrophs (1). Many of the cells of the PT are, however, ultrastructurally unique suggesting an independent function for this tissue. Our recent demonstration that the PT of the rat is a major binding site for the ligand iodomelatonin lends further support to this idea (3). We have utilized the highly specific ligand [(125)l]melatonin, and have demonstrated that it binds exclusively, with very high affinity, to the PT but not the PD of the adult sheep adenohypophysis. These findings support the conclusion that the PT has a distinct role in relation to melatonin action and seasonal reproduction.
Similar Documents
-
#680 0.438Corepressor binding to progesterone and glucocort…
-
#961 0.431Abnormal secretory response to parasympathomimeti…
-
#534 0.426Pathogenesis of parathyroid dysfunction in end-st…
-
#463 0.424Interrelationship between ovine follicular fluid …
-
#901 0.401Demonstration of luteotrophic responses of human …