Yanagimoto M, Honda K, Goto Y, Negoro H
Department of Anesthesiology and Reanimatology, Fukui Medical School, Japan.
Brain Res. 1996 Sep 16;733(2):292-6. doi: 10.1016/0006-8993(96)00800-1.
Electrical stimulation of the dorsal penile nerve (DPN) produced orthodromic excitation in about half of oxytocin cells in the paraventricular nucleus (PVN). In contrast, less than 10% of vasopressin cells were excited. Tactile stimulation of the glans penis by a paintbrush produced excitation in 40% of oxytocin cells. Castration did not prevent activation of oxytocin cells. These results suggest that somatosensory information from the penis is transmitted to the PVN through the DPN and that such afferent input preferentially innervates oxytocin cells.
对阴茎背神经（DPN）进行电刺激，在室旁核（PVN）中约半数的催产素细胞产生了顺向兴奋。相比之下，不到10%的加压素细胞被兴奋。用画笔对阴茎头进行触觉刺激，在40%的催产素细胞中产生了兴奋。去势并未阻止催产素细胞的激活。这些结果表明，来自阴茎的躯体感觉信息通过DPN传递至PVN，且这种传入输入优先支配催产素细胞。
