Central nervous system action of thyrotropin-releasing hormone to increase gastric mucosal blood flow in the rat.
Central nervous system action of thyrotropin-releasing hormone to increase gastric mucosal blood flow in the rat.
复制标题
促甲状腺激素释放激素增加大鼠胃粘膜血流量的中枢神经系统作用。
DOI:
10.1016/0016-5085(89)90076-0
复制
发表时间:
1989
期刊:
影响因子:
29.4
通讯作者:
Guth,PH
中科院分区:
文献类型:
--
作者:
Thiefin,G;Taché,Y;Leung,FW;Guth,PH
The central nervous system effects of thyrotropin-releasing hormone (TRH) on gastric acid secretion and mucosal blood flow were studied in rats. Corpus mucosal blood flow was measured by the hydrogen gas clearance technique and acid output by a continuous gastric perfusion method in fasted, urethane-anesthetized rats. Thyrotropin-releasing hormone (1 or 5 μg) injected into the cerebral lateral ventricle induced concomitant increases in gastric acid secretion and mucosal blood flow. Intravenous infusion of step doses of TRH (60 and 180 μg/kg · h) had no effect on these parameters. Bilateral vagotomy and atropine (0.15 mg/kg) completely blocked the effects of intracerebroventricular injection of TRH (5 μg) on gastric acid secretion and mucosal blood flow. In contrast, intravenous omeprazole (20 μmol/kg) completely inhibited the increase in gastric acid secretion but not the increase in mucosal blood flow elicited by intracerebroventricular administration of TRH (5 μg). These results demonstrate that TRH acts in the brain to stimulate gastric acid secretion and mucosal blood flow through vagal dependent pathways and peripheral muscarinic receptors. Part of the effect of central TRH on gastric mucosal blood flow is not secondary to the stimulation of acid secretion and appears to represent a direct cholinergic vasodilatory response.
登录
查看更多内容
影响因子:
--
作者:
Y. Taché;Y. Goto;M. Lauffenburger;D. Lesiège
通讯作者:
D. Lesiège
DOI:
--
发表时间:
1970
期刊:
Journal of Physiology
影响因子:
--
作者:
D. Colin;R. Himsworth
通讯作者:
R. Himsworth
DOI:
10.1002/aja.1001810404
发表时间:
1988
期刊:
The American journal of anatomy
影响因子:
--
作者:
I. Merchenthaler;V. Csernus;C. Csontos;P. Petrusz;B. Mess
通讯作者:
B. Mess
DOI:
--
发表时间:
--
期刊:
Bristol medico-chirurgical journal (1883)
影响因子:
--
作者:
I. Pavlov;W. H. Thompson
通讯作者:
W. H. Thompson
影响因子:
2.9
作者:
M. Palkovits;É. Mezey;R. Eskay;M. Brownstein
通讯作者:
M. Brownstein