PMID- 1847605 OWN - NLM STAT- MEDLINE DCOM- 19910322 LR - 20171213 IS - 0002-9513 (Print) IS - 0002-9513 (Linking) VI - 260 IP - 2 Pt 2 DP - 1991 Feb TI - Brain oxytocin receptors mediate corticotropin-releasing hormone-induced anorexia. PG - R448-52 AB - Central administration of corticotropin-releasing hormone (CRH) is known to inhibit food intake and stimulate pituitary oxytocin (OT) secretion in rats. These experiments addressed the possibility that the inhibition of food intake that follows central CRH administration is mediated through oxytocinergic pathways. Male food-deprived rats, with stable baseline food intakes after intracerebroventricular (icv) injections of artificial cerebrospinal fluid, received 150 pmol of CRH icv. Food intake was inhibited by 62 +/- 5% during a 90-min test period. Pretreatment with 9 nmol of the OT antagonist [d(CH2)5, Tyr(Me)2, Orn8]vasotocin icv completely eliminated the inhibition of food intake produced by icv CRH. In contrast, pretreatment with the OT-receptor antagonist did not significantly alter pituitary secretion of adrenocorticotropic hormone and OT stimulated by icv CRH. The results of these experiments implicate OT as a possible central mediator of CRH-induced anorexias in rats, particularly those that are accompanied by stimulation of neurohypophysial OT secretion. FAU - Olson, B R AU - Olson BR AD - Department of Medicine, University of Pittsburgh, Pennsylvania 15261. FAU - Drutarosky, M D AU - Drutarosky MD FAU - Stricker, E M AU - Stricker EM FAU - Verbalis, J G AU - Verbalis JG LA - eng GR - MH-25140/MH/NIMH NIH HHS/United States PT - Journal Article PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Am J Physiol JT - The American journal of physiology JID - 0370511 RN - 0 (Receptors, Angiotensin) RN - 0 (Receptors, Oxytocin) RN - 50-56-6 (Oxytocin) RN - 77327-45-8 (oxytocin,1-(beta-mercapto-(beta, beta-cyclopentamethylene)propionic acid)-Tyr(OMe)(2)-Orn(8)-) RN - 9002-60-2 (Adrenocorticotropic Hormone) RN - 9015-71-8 (Corticotropin-Releasing Hormone) RN - W980KJ009P (Corticosterone) SB - IM MH - Adrenocorticotropic Hormone/blood MH - Animals MH - Anorexia/*chemically induced/physiopathology MH - Brain/*metabolism MH - Corticosterone/blood MH - *Corticotropin-Releasing Hormone/pharmacology MH - Eating MH - Injections, Intraventricular MH - Oxytocin/analogs & derivatives/blood/pharmacology MH - Rats MH - Rats, Inbred Strains MH - Receptors, Angiotensin/*physiology MH - Receptors, Oxytocin EDAT- 1991/02/01 00:00 MHDA- 1991/02/01 00:01 CRDT- 1991/02/01 00:00 PHST- 1991/02/01 00:00 [pubmed] PHST- 1991/02/01 00:01 [medline] PHST- 1991/02/01 00:00 [entrez] AID - 10.1152/ajpregu.1991.260.2.R448 [doi] PST - ppublish SO - Am J Physiol. 1991 Feb;260(2 Pt 2):R448-52. doi: 10.1152/ajpregu.1991.260.2.R448.