...
首页> 外文期刊>Neurochemistry International: The International Journal for the Rapid Publication of Critical Reviews, Preliminary and Original Research Communications in Neurochemistry >Dextromethorphan-induced psychotoxic behaviors cause sexual dysfunction in male mice via stimulation of σ-1 receptors
【24h】

Dextromethorphan-induced psychotoxic behaviors cause sexual dysfunction in male mice via stimulation of σ-1 receptors

机译:右美沙芬诱发的心理毒性行为通过刺激σ-1受体导致雄性小鼠性功能障碍

获取原文
获取原文并翻译 | 示例
           

摘要

Dextromethorphan (DM) is a well-known antitussive dextrorotatory morphinan. We and others have demonstrated that sigma (σ) receptors may be important for DM-mediated neuromodulation. Because an earlier report suggested that DM might affect sexual function and that σ receptor ligands affect signaling pathways in the periphery, we examined whether DM-induced psychotoxic burden affected male reproductive function. We observed that DM had a high affinity at σ-1 receptors in the brain and testis but relatively low affinity at σ-2 receptors. Prolonged treatment with DM resulted in conditioned place preference and hyperlocomotion, followed by an increase in Fos-related antigen expression in the nucleus accumbens in male mice. Simultaneously, DM induced significant reductions in gonadotropin-releasing-hormone immunoreactivity in the hypothalamus. Moreover, we observed that DM induced increased sperm abnormalities and decreased sperm viability and sexual behavior. These phenomena were significantly attenuated by combined treatment with BD1047, a σ-1 receptor antagonist, but not by SM-21, a σ-2 receptor antagonist. Thus, these results suggest that DM psychotoxicity might lead to reproductive stress in male mice by activating σ-1 receptors.
机译:右美沙芬(DM)是一种著名的镇咳右旋吗啡喃。我们和其他人已证明sigma(σ)受体对于DM介导的神经调节可能很重要。因为较早的报告表明DM可能会影响性功能,而σ受体配体会影响周围的信号传导途径,所以我们检查了DM引起的精神毒性负担是否影响了男性生殖功能。我们观察到DM对大脑和睾丸中的σ-1受体具有较高的亲和力,但对σ-2受体具有相对较低的亲和力。 DM的延长治疗导致条件性位置偏爱和运动过度,随后在雄性小鼠伏隔核中Fos相关抗原表达增加。同时,DM诱导下丘脑中促性腺激素释放激素免疫反应性显着降低。此外,我们观察到DM导致精子异常增加,精子活力和性行为下降。这些现象通过与σ-1受体拮抗剂BD1047联合治疗而得到显着减弱,但与σ-2受体拮抗剂SM-21联合治疗未明显减轻。因此,这些结果表明DM的精神毒性可能通过激活σ-1受体而导致雄性小鼠的生殖压力。

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