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首页> 外文期刊>European Journal of General Medicine >The Mechanisms of the Direct Vascular Effects of Sevoflurane on Saphenous Veins in Vitro
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The Mechanisms of the Direct Vascular Effects of Sevoflurane on Saphenous Veins in Vitro

机译:七氟醚对大隐静脉的体外直接血管作用机理

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Aim: The purpose of this study was to determine the mechanism of the directs effects of sevoflurane on human veins in vitro. Methods: Dose-response curves were obtained for cumulative doses of sevoflurane (0.5, 1, 1.5 and 2 MAC) on saphenous vein strips precontracted with 5-hydroxytryptamine ( 5-HT 10-6 mol/L) incubated with either Nω-nitroL-arginine-methyl ester (L-NAME) (10-4 mol/L), indomethacine (10-5 mol/L), glibenclamide (10-6 mol/L) or tetraethylammonium (10-4 mol/L) Results: Preincubation of vein strips with tetraethylammonium (TEA, Ca++-activated K+ channel blocker) did not influence the relaxant responses to sevoflurane (p>0.05). L-NAME, indomethacine and glibenclamide reduced the relaxation response to sevoflurane (p Conclusion: Our results demonstrated that sevoflurane produces concentration dependent relaxation in human saphenous vein. The relaxant effects of sevoflurane are probably related with activation of nitric oxide synthase, cyclooxygenase and KATP channels pathways.
机译:目的:本研究的目的是确定七氟醚在体外对人静脉的直接作用机制。方法:获得了在预注射5-羟色胺(5-HT 10 -6 mol / L)的大隐静脉条上七氟醚的累积剂量(0.5、1、1.5和2 MAC)的剂量反应曲线。与Nω-硝基L-精氨酸甲酯(L-NAME)(10 -4 mol / L),消炎痛(10 -5 mol / L),格列本脲一起孵育(10 -6 mol / L)或四乙铵(10 -4 mol / L)结果:静脉条与四乙铵(TEA,Ca ++ <激活的K +通道阻滞剂)不影响舒张剂对七氟醚的反应(p> 0.05)。 L-NAME,吲哚美辛和格列本脲降低了对七氟醚的舒张反应(p结论:我们的结果表明七氟醚在人大隐静脉中产生浓度依赖性的舒张作用。七氟醚的舒张作用可能与一氧化氮合酶,环氧合酶和K < sub> ATP 通道途径。

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