首页> 外文期刊>Canadian Journal of Physiology and Pharmacology >Nphe1)nociceptin(1-13)-NH2 antagonizes nociceptin-induced hypotension, bradycardia, and hindquarters vasodilation in the anesthetized rat.
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Nphe1)nociceptin(1-13)-NH2 antagonizes nociceptin-induced hypotension, bradycardia, and hindquarters vasodilation in the anesthetized rat.

机译:Nphe1)nociceptin(1-13)-NH2拮抗伤害性受体引起的低血压,心动过缓和麻醉大鼠的后肢血管舒张。

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The purpose of this study was to investigate the effects of [Nphe1]nociceptin(1-13)-NH2 on nociceptin-induced decreases in mean arterial pressure (MAP), heart rate (HR), and hindquarters vascular bed resistance (HVBR) of the anesthetized rat. The results showed that i.c.v. or i.v. [Nphe1]nociceptin(1-13)-NH2 (1.5-12 nmol/kg and 5-120 nmol/kg, respectively) could antagonize the depressor effects of i.c.v. or i.v. nociceptin (3 and 30 nmol/kg, respectively) on MAP and HR. Furthermore, [Nphe1]nociceptin(1-13)-NH2 (5-120 nmol/kg) could reverse nociceptin (30 nmol/kg)-induced decrease of HVBR. However, [Nphe1]nociceptin(1-13)-NH2 had no significant effects on similar effects induced by morphine. Our results suggest that [Nphe1]nociceptin(1-13)-NH2 acts as a selective antagonist of the nociceptin receptor in the cardiovascular system of the rat.
机译:这项研究的目的是调查[Nphe1] nociceptin(1-13)-NH2对伤害感受药诱导的平均动脉压(MAP),心率(HR)和后肢血管床阻力(HVBR)降低的影响麻醉的老鼠。结果显示,或i.v. [Nphe1] nociceptin(1-13)-NH2(分别为1.5-12 nmol / kg和5-120 nmol / kg)可以拮抗i.c.v.的镇静作用。或i.v. MAP和HR上的Nociceptin(分别为3和30 nmol / kg)。此外,[Nphe1] nociceptin(1-13)-NH2(5-120 nmol / kg)可以逆转伤害感受素(30 nmol / kg)引起的HVBR降低。但是,[Nphe1] nociceptin(1-13)-NH2对吗啡诱导的类似作用没有明显影响。我们的研究结果表明[Nphe1] nociceptin(1-13)-NH2在大鼠的心血管系统中充当Nociceptin受体的选择性拮抗剂。

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