...
首页> 外文期刊>Canadian Journal of Physiology and Pharmacology >The nitric oxide-cGMP signaling pathway plays a significant role in tolerance to the analgesic effect of morphine.
【24h】

The nitric oxide-cGMP signaling pathway plays a significant role in tolerance to the analgesic effect of morphine.

机译:一氧化氮-cGMP信号通路在耐受吗啡镇痛作用中起重要作用。

获取原文
获取原文并翻译 | 示例
           

摘要

Although the phenomenon of opioid tolerance has been widely investigated, neither opioid nor nonopioid mechanisms are completely understood. The aim of the present study was to investigate the role of the nitric oxide (NO)-cyclic guanosine monophosphate (cGMP) pathway in the development of morphine-induced analgesia tolerance. The study was carried out on male Wistar albino rats (weighing 180-210 g; n = 126). To develop morphine tolerance, animals were given morphine (50 mg/kg; s.c.) once daily for 3 days. After the last dose of morphine was injected on day 4, morphine tolerance was evaluated. The analgesic effects of 3-(5'-hydroxymethyl-2'-furyl)-1-benzylindazole (YC-1), BAY 41-2272, S-nitroso-N-acetylpenicillamine (SNAP), N(G)-nitro-L-arginine methyl ester (L-NAME), and morphine were considered at 15 or 30 min intervals (0, 15, 30, 60, 90, and 120 min) by tail-flick and hot-plate analgesia tests (n = 6 in each study group). The results showed that YC-1 and BAY 41-2272, a NO-independent activator of soluble guanylate cyclase (sGC), significantly increased the development and expression of morphine tolerance, and L-NAME, a NO synthase (NOS) inhibitor, significantly decreased the development of morphine tolerance. In conclusion, these data demonstrate that the nitric oxide-cGMP signal pathway plays a pivotal role in developing tolerance to the analgesic effect of morphine.
机译:尽管已经对阿片类药物耐受现象进行了广泛研究,但对阿片类药物和非阿片类药物的机制均未完全了解。本研究的目的是研究一氧化氮(NO)-环鸟苷单磷酸(cGMP)途径在吗啡诱导的镇痛耐受性发展中的作用。该研究是在雄性Wistar白化病大鼠(体重180-210克; n = 126)上进行的。为了提高对吗啡的耐受性,每天一次对动物给予吗啡(50 mg / kg;皮下注射),持续3天。在第4天注射最后一剂吗啡后,评估了吗啡耐受性。 3-(5'-羟甲基-2'-呋喃基)-1-苄基吲唑(YC-1),BAY 41-2272,S-亚硝基-N-乙酰青霉胺(SNAP),N(G)-硝基-通过甩尾和热板镇痛试验(n = 6),每隔15或30分钟(0、15、30、60、90和120分钟)考虑使用L-精氨酸甲酯(L-NAME)和吗啡在每个研究组中)。结果表明,YC-1和BAY 41-2272,一种不依赖NO的可溶性鸟苷酸环化酶(sGC)激活剂,显着提高了吗啡耐受性的表达和表达,而L-NAME是一种NO合酶(NOS)抑制剂,其作用明显增强。降低了吗啡耐受性的发展。总之,这些数据表明,一氧化氮-cGMP信号通路在发展对吗啡镇痛作用的耐受性中起着关键作用。

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