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Role of peripheral adenosine A(1) receptors in the regulation of sleep apneas in rats.

机译:外围腺苷A(1)受体在大鼠睡眠呼吸暂停调节中的作用。

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The effects of administration of N(6)-p-sulfophenyladenosine (p-SPA), a peripheral adenosine A(1) receptor agonist, and 8-(p-sulfophenyl)theophylline (p-SPT), a peripheral adenosine A(1) receptor blocker, on spontaneous apneas were studied in 10 adult Sprague-Dawley rats by monitoring respiration, sleep, and blood pressure for 6 h. Intraperitoneal injection of p-SPA (1 mg/kg) to rats suppressed spontaneous central apneas during non-rapid eye movement sleep by 50% in comparison to control recordings (p = 0.03). This effect was blocked by pretreatment with an equimolar dose of p-SPT (0.67 mg/kg) indicating that p-SPA suppression of apneas was receptor mediated in the peripheral nervous system. Administration of p-SPA did not affect apnea expression in rapid eye movement sleep and had no effect on sleep or blood pressure at the dose tested. Administration of p-SPT (0.67, 6.7, and 30 mg/kg) to rats had no effect on apneas, sleep, or blood pressure. The lack of p-SPT effect on sleep apneas argues against a physiologic role for endogenous adenosine in the peripheral nervous system as a modulator of sleep apnea expression under baseline conditions. Copyright 1999 Academic Press.
机译:N(6)-p-磺基苯基腺苷(p-SPA),外围腺苷A(1)受体激动剂和8-(p-sulfophenyl)茶碱(p-SPT),外围腺苷A(1通过监测6小时的呼吸,睡眠和血压,对10只成年Sprague-Dawley大鼠进行了自发性呼吸暂停受体阻滞剂研究。与对照记录相比,向大鼠腹膜内注射p-SPA(1 mg / kg)可将非快速眼动睡眠中的自发性中枢性呼吸暂停抑制50%(p = 0.03)。通过用等摩尔剂量的p-SPT(0.67 mg / kg)进行预处理可以阻止这种作用,表明p-SPA抑制呼吸暂停是由受体介导的周围神经系统。使用p-SPA不会影响快速眼动睡眠中的呼吸暂停表达,并且在测试剂量下对睡眠或血压没有影响。给大鼠施用p-SPT(0.67、6.7和30 mg / kg)对呼吸暂停,睡眠或血压没有影响。 p-SPT对睡眠呼吸暂停的缺乏作用,与基线条件下外周神经系统中内源性腺苷作为睡眠呼吸暂停表达的调节剂的生理作用相反。版权所有1999 Academic Press。

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