Reflexive ovulation in the rat, induced by caesarean section, is blocked by pelvic and/or hypogastric nerve transection.
Reflexive ovulation in the rat, induced by caesarean section, is blocked by pelvic and/or hypogastric nerve transection.
复制标题
剖腹产引起的大鼠反射性排卵被骨盆和/或腹下神经横断所阻断。
DOI：
10.1159/000126254
复制
发表时间：
1992
影响因子：
4.1
通讯作者：
Komisaruk,BR
中科院分区：
文献类型：
--
作者：
Cunningham,ST;Rosenblatt,JS;Komisaruk,BR
妊娠22天剖腹产诱导的大鼠反射性排卵，先切断双侧盆腔和/或腹下神经，以传递生殖道的传入活动。双侧神经切断或假神经切断后24 h计数输卵管卵泡数和出血性卵泡数。而假神经切除组的卵子数和出血性卵泡数的中位数分别为4.5和3.5，而各神经切除组的中位数分别为0。目前的研究结果表明，剖腹产会激活盆腔和腹下神经，从而触发排卵。这表明，正常情况下，大鼠在其生殖周期的发情周期(非怀孕)阶段是自发排卵器，并可能在其生殖周期的临产阶段成为反射性排卵器。
Reflexive ovulation in the rat, induced by caesarian section performed on day 22 of pregnancy, was blocked by prior bilateral transection of the pelvic and/ or hypogastric nerves, which convey afferent activity from the reproductive tract. Tubal ova and hemorrhagic ovarian follicles were counted 24 h after bilateral nerve transections or sham neurectomy. Whereas the median numbers of ova and hemorrhagic follicles in the sham neurectomy group were 4.5 and 3.5, respectively, these values in each of the neurectomy groups were 0. The present findings indicate that caesarian section activates the pelvic and hypogastric nerves to trigger ovulation. This suggests that normally the rat is a spontaneous ovulator during the estrous cycle (nonpregnancy) phase of its reproductive cycle, and may become a reflexive ovulator at the parturient phase of its reproductive cycle.