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                                           Human essence of art, the human feelings of the perfect lens
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子宫内膜的酶和抑制物及排卵机制
作者:meilibao  来源:地球村  发布时间:2007-8-11 17:59:03
Body art from the West, male body is mainly a reflection of the strength of the United States. While the female body is mainly a reflection of the kind of a female-specific negative of tender.
Body art is static human form, does not contain sexual intercourse is exposed genitals or other to tease of limb movements. Good photographs focus on the human body is the use of light and shadow. The body was naked from the arts, the human body art is not carnal desire , vulgar. Accurately speaking, and now, the "body art" is not very precise. Art classification is based on the auditory,
水解酶:  雌激素刺激酸性粘糖的产生,聚合、浓缩,形成胶液间质。对内膜的生长,新血管的形成起支持作用。孕酮抑制酸性粘多糖的合成,促进内膜物质交换,准备孕卵着床。雌激素和孕激素减少时溶酶体膜通透性增加、酶被释放、内膜破坏。
    蛋白溶解酶:孕激素稳定溶酶体膜,孕激素减少时释放溶酶体的酶导致局部蛋白溶解。
    纤维蛋白溶酶原活化素(PA)导致纤维蛋白溶酶加尿激酶后溶解,E2增加PA活性,P降低其活性。PA/PAI系统对内膜生长、月经不凝等起作用。
    排卵前FSH和孕酮的增高可提高蛋白分解酶的活性,与卵泡壁的溶解有关。
    排卵机制:1、纤维蛋白溶解酶原激活物激活PA转化为UPA(尿激酶);2、UPA使胶原蛋白酶原变为胶原酶;3、胶原酶溶解卵泡壁释放卵泡。E2激活UPA;P抑制UPA;FSH激活胶原酶。

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