Hodgson B J, Talo A
Am J Physiol. 1978 Apr;234(4):E439-43. doi: 10.1152/ajpendo.1978.234.4.E439.
Electrical activity of rabbit oviducts was recorded in vitro at 48 h after injection of human chorionic gonadotropin (HCG), 18 or 24 h after HCG with progesterone pretreatment, and 48 or 68 h after HCG with estrogen treatment 24 or 0 h after HCG, respectively. Frequency of spike bursts, pacemaker frequency, percentage of nonpropagating bursts, and probability of propagating in the uterine direction were obtained. Estrogen treatment decreased frequency of activity; at 48 h distance of propagation was increased and activity extended to 72.4% of the length of the oviduct compared to 65.7% in oviducts removed 48 h after HCG without estrogen. Only the ampullary-isthmic junction was active at 68 h after estrogen and HCG injection. Progesterone increased frequency and imposed a uterine bias, and activity extended to 73.6% of the length of the oviduct. These data support the hypothesis that properties of activity in the active area and the location of the active-inactive border regulate the location of ova in the isthmus of the rabbit oviduct.
在注射人绒毛膜促性腺激素（HCG）后48小时、用孕酮预处理后HCG 18或24小时以及分别在HCG后24或0小时用雌激素处理后48或68小时，体外记录兔输卵管的电活动。获得了尖峰爆发频率、起搏器频率、非传播性爆发的百分比以及向子宫方向传播的概率。雌激素处理降低了活动频率；在48小时时，传播距离增加，活动延伸至输卵管长度的72.4%，而在没有雌激素的情况下，在HCG后48小时切除的输卵管中这一比例为65.7%。在注射雌激素和HCG后68小时，只有壶腹-峡部连接处有活动。孕酮增加了频率并产生了子宫偏向，活动延伸至输卵管长度的73.6%。这些数据支持这样的假设，即活动区域的活动特性和活动-非活动边界的位置调节兔输卵管峡部卵子的位置。
