Rostral medullary cholinergic mechanisms and chronic stress-induced hypertension

作者: Qing Lin , Peng Li

DOI: 10.1016/0165-1838(90)90187-N

关键词:

摘要: This work was designed to study the relationship between cholinergic mechanisms in rostral ventrolateral medulla (rVLM) and incidence of hypertension induced by chronic stress. Under anaesthetized conditions, bilateral microinjection scopolamine (1.18 nmol/site) into rVLM produced a much greater depressor response stress-induced hypertensive rats than normotensive rats. Similar bradycardic effects were observed both when injected rVLM. Acetylcholine (Ach) content choline acetyltransferase (ChAT) activity determined radioimmunoassay Ach ChAT increased significantly rats, such increase mainly occurred within ventral part medulla. These results suggest that may be activated during stress activation involved pathogenesis

参考文章(24)
Jerry J. Buccafusco, Henry E. Brezenoff, Brain neurotransmitters and the development and maintenance of experimental hypertension. Progress in drug research. ,vol. 30, pp. 127- 150 ,(1986) , 10.1007/978-3-0348-9311-4_4
J. Bagjar, V. Hrdina, V. Golda, Development of Cholinergic Enzymes in the Brain of Normal and Hypertensive Rats Progress in Brain Research. ,vol. 49, pp. 471- ,(1979) , 10.1016/S0079-6123(08)64660-9
Kalyana Sundaram, Abbott J. Krieger, Hreday Sapru, M2 muscarinic receptors mediate pressor responses to cholinergic agonists in the ventrolateral medullary pressor area. Brain Research. ,vol. 449, pp. 141- 149 ,(1988) , 10.1016/0006-8993(88)91032-3
Cinda J. Helke, Eric A. Muth, David M. Jacobowitz, Changes in central cholinergic neurons in the spontaneously hypertensive rat Brain Research. ,vol. 188, pp. 425- 436 ,(1980) , 10.1016/0006-8993(80)90042-6
Kalyana Sundaram, Hreday Sapru, Cholinergic nerve terminals in the ventrolateral medullary pressor area: pharmacological evidence Journal of The Autonomic Nervous System. ,vol. 22, pp. 221- 228 ,(1988) , 10.1016/0165-1838(88)90110-5
M.K. Krstić, Draginja Djurković, Cardiovascular response to intracerebro-ventricular administration of acetylcholine in rats ☆ ☆☆ Neuropharmacology. ,vol. 17, pp. 341- 347 ,(1978) , 10.1016/0028-3908(78)90004-7
Gad M. Gilad, Barry D. Mahon, Yoram Finkelstein, Benjamin Koffler, Varda H. Gilad, Stress-induced activation of the hippocampal cholinergic system and the pituitary-adrenocortical axis Brain Research. ,vol. 347, pp. 404- 408 ,(1985) , 10.1016/0006-8993(85)90209-4
Achille P. Caputi, Bruce H. Camilleri, Henry E. Brezenoff, Age-related hypotensive effect of atropine in unanesthetized spontaneously hypertensive rats European Journal of Pharmacology. ,vol. 66, pp. 103- 109 ,(1980) , 10.1016/0014-2999(80)90300-3
J. J. Buccafusco, S. Spector, Role of central cholinergic neurons in experimental hypertension. Journal of Cardiovascular Pharmacology. ,vol. 2, pp. 347- 355 ,(1980) , 10.1097/00005344-198007000-00002