PMID: 7028608Sep 1, 1981Paper

Effects of bromocriptine on responses to stress in spontaneously hypertensive rats

Hypertension
J R Sowers

Abstract

Treatment of 2-month-old spontaneously hypertensive rats (SHR) and age-matched Wistar-Kyoto (WKY) normotensive controls with the dopamine agonist, bromocriptine, for 7 days significantly affected hormonal responses to immobilization stress in both groups. However, basal blood pressures and pressor responses to immobilization stress were significantly reduced only in SHR. Basal levels of catecholamines were similar in the two groups of rats, but catecholamine responses to immobilization stress following saline (vehicle) treatment were marked greater in SHR; following bromocriptine treatment for 7 days, catecholamine responses were similar in the two groups. Basal serum prolactin levels and prolactin responses to immobilization were greater in SHR after saline treatment; after bromocriptine, they were similar in the two groups. Basal plasma renin activity (PRA)and PRA responses to immobilization were significantly less in SHR following saline treatment; after bromocriptine treatment these responses were paradoxically greater in SHR without being significantly changed in WKY. Basal levels of plasma aldosterone and corticosterone following saline were significantly greater, but responses to immobilization less, in SHR. Bromocriptin...Continue Reading

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Citations

Jun 1, 1986·Biulleten' eksperimental'noĭ biologii i meditsiny·A L Markel'E V Naumenko
Jan 1, 1983·Neuroscience and Biobehavioral Reviews·R McCarty
Dec 1, 1991·Brain Research Bulletin·R M Quock, L K Vaughn
Oct 1, 1987·Clinical and Experimental Pharmacology & Physiology·B K Tan, J S Hutchinson
Sep 1, 1983·The Journal of Clinical Investigation·O B HollandC Gomez-Sanchez
Jan 1, 1987·Clinical and Experimental Hypertension. Part A, Theory and Practice·O KuchelN T Buu
Jan 1, 1983·Clinical and Experimental Hypertension. Part A, Theory and Practice·N SternT Rosenthal
Jan 1, 1983·Clinical and Experimental Hypertension. Part A, Theory and Practice·H KawabeT Saruta
Sep 1, 1992·Archives Internationales De Physiologie, De Biochimie Et De Biophysique·S BuissonE Scalbert
Feb 1, 1984·The Journal of Pharmacy and Pharmacology·H A Struyker-BoudierJ F Smits
Oct 1, 1984·Journal of Endocrinological Investigation·J R Sowers, F W Beck

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