首页> 外文期刊>Life sciences >Alpha-adrenergic blockade: a possible mechanism of tocolytic action of certain benzodiazepines in a postpartum rat model in vivo.
【24h】

Alpha-adrenergic blockade: a possible mechanism of tocolytic action of certain benzodiazepines in a postpartum rat model in vivo.

机译:α-肾上腺素能阻滞:某些苯二氮卓类在产后大鼠体内模型中可能具有宫缩作用。

获取原文
获取原文并翻译 | 示例
           

摘要

Benzodiazepines are frequently used for the treatment of maternal psychiatric disorders during pregnancy. Besides their anxiolytic effect, they are reported to exert a direct relaxing action on several smooth muscle preparations, including the uterus. In the present study, the possibility of the involvement of alpha(1)-adrenergic receptors in this peripheral effect is investigated. The tocolytic potencies of diazepam, midazolam and nitrazepam are assessed in vivo in a postpartum rat model, together with other drugs known to bind to alpha-adrenoceptors (e.g. alpha(1)-antagonists, tricyclic compounds and droperidol). The interactions of some benzodiazepines and norepinephrine were also examined in an isolated in vitro system. The affinities of these agents for the receptor in question were additionally tested by radioligand displacement assay. A correlation was found between the tocolytic potencies and inhibition constants of the tested drugs, suggesting that the smooth muscle-relaxing effect of these benzodiazepines is mediated through modulation of the alpha(1)-adrenergic receptors.
机译:苯二氮卓类药物常用于孕妇孕期精神疾病的治疗。除了其抗焦虑作用外,据报道它们还对包括子宫在内的几种平滑肌制剂产生直接的放松作用。在本研究中,研究了α(1)-肾上腺素受体参与这种外周作用的可能性。地西epa,咪达唑仑和硝西epa的产卵药力是在产后大鼠模型中与其他已知与α-肾上腺素能受体结合的药物(例如α(1)-拮抗剂,三环化合物和氟哌啶)一起在体内进行评估的。在分离的体外系统中还检查了一些苯二氮卓类和去甲肾上腺素的相互作用。这些试剂对所讨论的受体的亲和力还通过放射性配体置换测定法进行了测试。在受试药物的宫缩功效和抑制常数之间发现相关性,表明这些苯二氮卓类药物的平滑肌松弛作用是通过调节α(1)-肾上腺素能受体介导的。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号