An NMDA antagonist impairs copulation and the experience-induced enhancement of male sexual behavior in the rat.

An NMDA antagonist impairs copulation and the experience-induced enhancement of male sexual behavior in the rat.
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NMDA 拮抗剂会损害大鼠的交配和经验诱导的雄性性行为增强。

DOI:
10.1037//0735-7044.117.1.69
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发表时间:
2003
影响因子:
1.9
通讯作者:
Hull,ElaineM
Hull,ElaineM
中科院分区:
医学4区
文献类型:
--
作者:
Powell,WhitneyS;Dominguez,JuanM;Hull,ElaineM

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性经验促进随后的男性性行为;N-甲基-D-天冬氨酸(NMDA)谷氨酸受体的激活可能在这种经验诱导的增强中发挥作用。在这篇文章中,作者报告了全身注射NMDA受体拮抗剂MK-801,损害了性幼稚和性经验雄性大鼠的性行为。此外,生理盐水处理的大鼠每天与一只难以接近的发情雌性动物接触7次,而不是性体验,在第二天表现出交配的增强。在每次暴露前注射MK-801抑制了第8天的经验诱导的无药物测试的增强。这些数据表明,刺激NMDA受体立即提高了性行为,并介导了经验诱导的随后交配行为的增强。
Sexual experience facilitates subsequent male sexual behavior; activation of the N-methyl-D-aspartate (NMDA) glutamate receptor may play a role in this experience-induced enhancement. In this article, the authors report that systemic injections of MK-801, an NMDA receptor antagonist, impaired male sexual behavior in sexually naive and sexually experienced male rats. Furthermore, saline-treated rats that received 7 daily exposures to an inaccessible estrous female instead of sexual experience displayed enhancement of copulation on the following day. Injections of MK-801 before each of these exposures inhibited the experience-induced enhancement on the drug-free test on Day 8. These data suggest that stimulation of NMDA receptors enhances sexual performance immediately and mediates the experience-induced enhancement of subsequent copulatory behavior.
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