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首页> 外文期刊>Endocrine journal >A Nitric Oxide Synthesis Inhibitor Prevents the ACTH-Stimulated Production of Aldosterone in Rat Adrenal Gland
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A Nitric Oxide Synthesis Inhibitor Prevents the ACTH-Stimulated Production of Aldosterone in Rat Adrenal Gland

机译:一氧化氮合成抑制剂可防止ACTH刺激大鼠肾上腺分泌醛固酮

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References(32) Cited-By(3) The synthesis of nitric oxide (NO) has been demonstrated in the vascular endothelial cells and other tissues including in rat and bovine adrenal gland. To determine whether NO mediates aldosterone production in the adrenals, we evaluated the basal production of aldosterone, and the ACTH or angiotensin II (A II)-stimulated aldosterone in the presence of LNG monomethyl arginine (L-NMMA) or L-arginine or L-NMMA + L-arginine in isolated rat adrenal capsular tissue by an ex vivo perfusion technique. ACTH increased the release of aldosterone by 40%. Such release of aldosterone was inhibited by L-NMMA, but not by a mixture of L-NMMA and L-arginine. A II stimulated aldosterone release by 40%. The increase in aldosterone release in response to A II was inhibited by L-NMMA or L-arginine. The increase in aldosterone release stimulated by A II was also inhibited by L-NMMA with L-arginine. L-glutamine did not inhibit the A II stimulated aldosterone release. In conclusion, the inhibition of NO synthesis prevented the release of aldosterone stimulated by ACTH, suggesting NO is required for the action of ACTH on aldosterone production.
机译:参考文献(32)引用了(3)一氧化氮(NO)的合成已在血管内皮细胞和其他组织(包括大鼠和牛肾上腺)中得到证实。为了确定NO是否在肾上腺中介导醛固酮的产生,我们评估了在LNG单甲基精氨酸(L-NMMA)或L-精氨酸或L的存在下,醛固酮的基础产生以及ACTH或血管紧张素II(A II)刺激的醛固酮的产生。 -NMMA + L-精氨酸在离体大鼠肾上腺荚膜组织中的离体灌注技术。 ACTH使醛固酮的释放增加40%。醛固酮的这种释放被L-NMMA抑制,但未被L-NMMA和L-精氨酸的混合物抑制。 II刺激醛固酮释放40%。 L-NMMA或L-精氨酸抑制了响应A II的醛固酮释放的增加。 L-NMMA和L-精氨酸还抑制了由A II刺激的醛固酮释放的增加。 L-谷氨酰胺不抑制A II刺激的醛固酮释放。总之,NO合成的抑制阻止了ACTH刺激的醛固酮的释放,表明ACTH对醛固酮产生的作用需要NO。

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