神经内分泌因子调控鱼类生殖和生长的相互作用

脊椎动物的生长与生殖活动有着密切的联系并相互作用。许多调节生长和代谢活动的内分泌因子对青春期或者性腺的发育产生影响。同样，调节生殖活动的许多激素亦同时对生长和代谢产生影响。近年来，我们和其他学者对鱼类生长和生殖的神经内分泌调节的相互作用进行了研究，主要的进展是：①在促进性腺的激素影响生长方面，发现促性腺激素释放激素（ＧｎＲＨ）和多巴胺都能和脑垂体生长激素细胞的特异性受体结合而刺激生长激素释放，并能

THE INTERACTIONS OF NEUROENDOCRINE REGULATION ON REPRODUCTION AND GROWTH IN FISH

Interaction between growth and reproduction occurs in many vetebrates.The endocrine factors which regulate growth and metabolism are also affected on puberty and gonadal development.Similarly,the hormones which effect on reproduction are also influ encedongrowthandmetabolism.Recentstudiesonfish revealed the neuroendocrine interactions between the gonadotropic axis and the somatotropic axis.For example,gonadotropin releasing hormone (GnRH) and dopamine could stimulate the release of growth hormone,sex steroid could modulate growth hormone secretion;also,growth hormone could accelerate gonadal development and maturation.Some new findings from studies on fish have not yet been obtained in mammals and other vertebrates are remains to be further investigated.