论文部分内容阅读
一般认为,腺垂体机能的控制系通过某种神经血管机制,包括轴突直接将促垂体激素排放进入垂体门脉血管.近年提出,脑脊液可能也是一种转运神经激素至正中隆起去的途径,该转运系统是通过第三脑室的特化室管膜细胞联系的,即Tanycyte.但是,至今虽有一些支持上述看法的实验报道,但在这一转运系统中,室管膜细胞的生理意义及作用尚有疑问.为了确定Tanycyte参与GnRH的跨室管膜转运,本研究观察了:①在麻醉兔,外源性GnRH是否能引起排卵;②静脉或脑室内注射时,所
It is generally believed that the control of pituitary gland function through certain neurovascular mechanisms, including the axon direct pituitary hormone emissions into the pituitary portal vein .In recent years, cerebrospinal fluid may also be a way to transport neurohormones to the median bulge, the The transport system is linked by a specialized ependymal cell in the third ventricle, known as Tanycyte. However, to date, although there are several experimental reports supporting these observations, the physiological significance and role of ependymal cells in this transport system In order to determine whether Tanycyte participates in transmembrane transport of GnRH, this study looked at: (1) whether exogenous GnRH can cause ovulation in anesthetized rabbits; (2) intravenous or intracerebroventricular injection