Peripheral acid inhibitory action of corticotropin releasing factor: mediation by nongastric mechanisms.

Peripheral acid inhibitory action of corticotropin releasing factor: mediation by nongastric mechanisms.
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促肾上腺皮质激素释放因子的外周酸抑制作用:非胃机制的介导。

DOI:
10.1016/0016-5085(87)90965-6
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发表时间:
1987
期刊:
影响因子:
29.4
通讯作者:
Yamada,T
Yamada,T
中科院分区:
医学1区
文献类型:
--
作者:
Todisco,A;Park,J;Lezoche,E;Debas,H;Tache,Y;Yamada,T

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促肾上腺皮质激素释放因子(CRF)通过中枢神经和外周机制抑制胃酸分泌。我们研究了局部胃因素是否可能介导CRF的外周作用。在幽门结扎的麻醉大鼠中,CRF输注(15 nmol/kg · h)对五肽胃泌素(16 μg/kg · h)刺激的酸分泌产生约60%的抑制。同样,在胃瘘犬中,CRF(1 nmol/kg · h)可抑制五肽胃蛋白酶诱导的酸分泌74%。CRF的这种作用不是直接抑制胃壁细胞的结果,因为在异丁基甲基黄嘌呤(10- 4 M)的背景下,10- 11至10- 6 M的肽浓度对未刺激状态下或用五肽胃泌素(10- 8 M)、组胺(10 - 5 M)或卡巴胆碱(10- 5 M)刺激后分离的壁细胞的活性没有影响。为了确定局部激素是否可以介导CR诱导的酸抑制,我们检测了肽对培养的犬胃D和G细胞以及离体穿孔大鼠胃中生长抑素和胃泌素释放的影响。促肾上腺皮质激素释放因子在10 ~(-11)~ 10 ~(-6)M范围内对基础状态下或经卡巴胆碱(10 ~(-6)M)刺激Gas Trin和异丙肾上腺素(10 ~(-8)M)刺激生长抑素后胃肽的释放均无影响。这些数据表明,外周酸抑制行动的CFR介导的非胃机制。
Corticotropin releasing factor (CRF) inhibits gastric acid secretion via both central neural and peripheral mechanisms. We examined whether local gastric factors may mediate the peripheral action of CRF. In pylorus-ligated anesthetized rats, CRF infusion (15 nmol/kg · h) produced roughly 60% inhibition of pentagastrin (16 μg/kg · h)-stimulated acid secretion. Similarly, in the gastric fistula dog, CRF (1 nmol/kg · h) inhibited pentagastrin-induced acid secretion by 74%. This action of CRF did not result from direct inhibition of gastric parietal cells, as concentrations of the peptide ranging from 10-11to 10-6M had no effect on the activity of isolated parietal cells in the unstimulated state or after stimulation with pentagastrin (10-8M), histamine (10-5M), or carbachol (10-5M), against a background of isobutylmethylxanthine (10-4M). To determine whether local hormones may mediate CRFinduced acid inhibition, we examined the peptide's effect on the release of somatostatin and gastrin from cultured canine gastric D and G cells and from isolated perf used rat stomachs. Corticotropin releasing factor in doses ranging from 10-11to 10-6M had no influence on release of either gastric peptide under basal conditions or after stimulation of gas trin with carbachol (10-6M) and somatostatin with isoproterenol (10-8M). These data suggest that the peripheral acid inhibitory action of CFR is mediated by nongastric mechanisms.
正常和溃疡受试者中酸分泌和胃泌素释放的 pH 依赖性。
DOI: --
发表时间: 1975
影响因子: 15.9
作者:
J. Walsh;C. T. Richardson;J. Fordtran
通讯作者: J. Fordtran
绵羊促肾上腺皮质激素释放因子刺激培养脑细胞分泌生长抑素。
DOI: 10.1210/endo-112-4-1275
发表时间: 1983
期刊: Endocrinology
影响因子: 4.8
作者:
Peterfreund,RA;Vale,WW
通讯作者: Vale,WW
脑内注射促肾上腺皮质激素释放因子抑制大鼠胃酸分泌。
DOI: 10.1126/science.6415815
发表时间: 1983
期刊: Science
影响因子: 56.9
作者:
Y. Taché;Y. Goto;M. Gunion;W. Vale;J. River;M. Brown
通讯作者: M. Brown
胃肠胰内分泌系统中的促肾上腺皮质激素释放因子(CRF)样免疫反应性
DOI: --
发表时间: 1984
期刊: Peptides
影响因子: 3
作者:
Peter Petrusz;Istvan Merchenthaler;P. Ordronneau;J. Maderdrut;S. Vigh;S. Vigh;A. V. Schally;A. V. Schally
通讯作者: A. V. Schally
人体胃肠道中促肾上腺皮质激素释放因子的免疫反应性
DOI: --
发表时间: 1982
期刊: The Lancet
影响因子: --
作者:
A. Kruseman;E. Linton;L. Rees;P. Lowry;G. Besser
通讯作者: G. Besser