Lordosis reflex intensity in rats in relation to the estrous cycle, ovariectomy, estrogen administration and mating behavior.
Lordosis reflex intensity in rats in relation to the estrous cycle, ovariectomy, estrogen administration and mating behavior.
复制标题
大鼠脊柱前凸反射强度与发情周期、卵巢切除、雌激素给药和交配行为的关系。
DOI：
10.1210/endo-93-3-548
复制
发表时间：
1973
期刊：
影响因子：
4.8
通讯作者：
C. Diakow
中科院分区：
文献类型：
--
作者：
B. Komisaruk;C. Diakow
对侧腹和会阴的手触诊反应的前凸通过同时探查阴道子宫颈明显促进。96只切除卵巢、未经激素治疗的大鼠中，不经宫颈探查的触诊从未引起前凸，但在这些个体中，有48%的人经宫颈探查引起前凸。单纯的颈椎探查从未引起前凸。雌激素治疗（单次注射剂量为1.0 μg/100 g体wt）显著增加了颈探查触诊后前凸的强度（照相测量的背屈程度）和发生概率。当雌激素剂量低于10.0 μg/100 g体重时，雄性或单独触诊引起的前凸很少发生。前凸的强度和发生概率与发情周期相关；在发情期、退情期-退情期、退情期-发情期的过渡时期均高于发情期、发情期和发情期。
Lordosis in response to manual palpation of the flanks and perineum was markedly facilitated by simultaneously probing the vaginal cervix. While palpation without cervical probing never induced lordosis in 96 ovariectomized, hormone-untreated rats, addition of cervical probing induced lordosis in 48% of these individuals. Cervical probing alone never induced lordosis. Estrogen administration (as little as a single injection of 1.0 μg/100 g body wt) significantly increased the intensity (extent of dorsiflexion, measured photographically), and probability of occurrence, of lordosis in response to palpation with cervical probing. Lordosis in response to mounting attempts by males, or by palpation alone, occurred only rarely at estrogen dosages lower than 10.0 μg/100 g body wt. Lordosis intensity and probability of occurrence varied significantly in relation to the estrous cycle; they were higher in proestrus and the transitional periods of diestrus-proestrus and proestrus-estrus, than in estrus, metestrus or...