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Role of kappa-opioid receptors in the regulation of cardiac resistance to arrhythmogenic effects of ischemia and reperfusion

机译:Kappa-Apioid受体在缺血和再灌注血糖血糖作用调节中的作用

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摘要

It was found that pretreatment of rats with selective agonist of kappa1-opioid receptors (OR) (-)--U--50.488 decreased the incidence of ischemic (10 min) and reperfusion (10 min) ventricular arrhythmias. The selective kappa2-OR agonist GR-89696 had no effect on the incidence of ventricular arrhythmias during a 10-min coronary artery occlusion and following reperfusion in anesthetized rats. The effect of (-)--U-50.488 was abolished by the selective kappa1-OR antagonist of non-binaltorphimine and the non-selective peripheral OR antagonist naloxone methiodide. Perfusion of isolated rat heart with (-)--U-50.488 did not affect arrhythmias during ischemia and reperfusion. The authors suggest that stimulation of kappa1-opioid receptors located outside the central nervous system increases heart resistance against arrhythmogenic action of ischemia/reperfusion, antiarrhythmic action of (-)--U-50.488 being mediated through extracardiac opioid receptors. nauk (3,4-Dichloro-N-methyl-N-(2-(1-pyrrolidinyl)-cyclohexyl)-benzeneacetamide, (trans)-Isomer) (trans)-Isomer/pharmacology/therapeutic use
机译:发现具有Kappa1-阿片受体(或)( - ) - U - 50.488的选择性激动剂的预处理降低缺血(10分钟)和再灌注(10分钟)心律失常的发病率。选择性Kappa2-或激动剂GR-89696对10分钟的冠状动脉闭塞期间的心律失常发生率并在麻醉大鼠中再灌注后对脑室心律失常的发生率没有影响。 ( - ) - U-50.488的效果被非双丙酰胺的选择性Kappa1-或拮抗剂和非选择性外周或拮抗剂甲氧酮甲碘酰亚胺取消了。用( - ) - U-50.488与( - ) - U-50.488在缺血和再灌注过程中的心律失常灌注。作者表明,位于中枢神经系统外部的Kappa1-ApioID受体的刺激会使缺血性/再灌注的心律失常作用增加心脏抗性,( - ) - U-50.488的抗真瘤作用是通过肢体阿片受体介导的。 Nauk(3,4-二氯-N-甲基-N-(2-(1-吡咯烷基)-cyclohexyl) - 苯基乙酰亚酰胺,(反式) - 异构体)(反式) - 异构体/药理学/治疗用途

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