Testicular ultrastructure in infertile men.

摘要: The review shows typical ultrastructural alterations of germ, Sertoli, and Leydig cells in infertile men. Regardless the cause infertility, disruption spermatogenic process usually occurs pachytene stage meiotic prophase stages early spermatid maturation. disturbances affect cytoplasm more than nucleus, synaptonemal complexes have shown significant stability even severely injured testes. An acrosome formation is found to be open injury advanced germ during manner reaction Sertoli under different pathological conditions depends on presence degree maturation neighboring cells. appearance immature accompanied by loss their differentiation. In most pathologically altered testes, mature reveal a universal cell organelles. ultrastructure fluctuates considerab...