Mammalian follicular development is a very complex process , paracrine , autocrine , juxtacrine , and endocrine factors and signaling pathways are essential for ovarian folliculogenesis .
哺乳动物卵泡发育是一个十分复杂的过程，受到许多来自旁分泌、自分泌、邻分泌和内分泌因子以及信号通路的调控。
endocrine signaling