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精液中促排卵因子对母畜繁殖的影响
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作者 李君荣 申婷 石放雄 《金华职业技术学院学报》 2013年第3期78-82,共5页
哺乳动物排卵的过程包括:脑下垂体前叶分泌LH到体循环后,下丘脑脉冲性释放GnRH到垂体门脉系统,而LH峰介导了卵泡成熟、卵泡破裂和排出。哺乳动物根据引起下丘脑分泌GnRH方式的不同分为自发性排卵(人、羊、牛、马和猪等)和诱发性排卵(兔... 哺乳动物排卵的过程包括:脑下垂体前叶分泌LH到体循环后,下丘脑脉冲性释放GnRH到垂体门脉系统,而LH峰介导了卵泡成熟、卵泡破裂和排出。哺乳动物根据引起下丘脑分泌GnRH方式的不同分为自发性排卵(人、羊、牛、马和猪等)和诱发性排卵(兔、貂、猫和骆驼等)动物,这其中自发性排卵动物具有一定的发情周期。早期研究发现交配过程能促发羊驼和驼马的排卵,最新研究发现精液中存在一种促排卵因子(OIF),这有助于了解自发性和诱发性排卵动物排卵的机制。OIF能刺激LH分泌、排卵和黄体腺的发育,并且通过体循环而非局部通路发挥作用。OIF是一种能耐热和抗蛋白酶K消化的蛋白质分子(分子团为14kDa),它可能是一种蛋白复合体或者激素原的一部分。OIF发挥作用是和剂量相关的。OIF已被证实存在于骆驼、牛、马、猪和袋熊等动物中。OIF在自发性排卵动物中能介导初情期小鼠促排、能改变母牛卵泡波的动态变化、能提升LH的释放(体外培养大鼠、小鼠、豚鼠、兔、驼马和牛的脑下垂体细胞)。 展开更多
关键词 促排卵因子 精浆 排卵 黄体 性腺激素
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Effect of electroacupuncture on egg quality and tumor necrosis factor-a of patients with polycystic ovarian syndrome 被引量:2
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作者 李静 崔薇 +1 位作者 孙伟 闻姬 《World Journal of Acupuncture-Moxibustion》 2014年第3期9-15,共7页
Objective To observe the effect of electroacupuncture (EA) on egg quality of polycystic ovarian syndrome (PCOS) patients, and to explore its mechanism. Methods Two hundred patients who received in vitro fertilizat... Objective To observe the effect of electroacupuncture (EA) on egg quality of polycystic ovarian syndrome (PCOS) patients, and to explore its mechanism. Methods Two hundred patients who received in vitro fertilization-embryo transfer (IVF-ET) were divided into an EA group (102 cases) and a control group (98 cases) according to random number table. All the patients in the two groups were given Diane-35 and gonadotropin-releasing hormone agonist (GnRH-α) for ovarian hyperstimulation. Besides, EA intervention was applied to Shenshu (肾俞 BL 23), Qihai (气海 GV 6), Zusanli (足三里ST 36), Sanyinjiao (三阴交 SP 6), Neiguan (内关 PC 6) and Zigong (子宫 EX-CA1), etc. in the EA group. Then egg quality, final outcome of pregnancy and levels of tumor necrosis factor-α (TNF-α) were compared between the two groups. Results (1) EA intervention significantly improved high quality embryo rate of PCOS patients (P〈0.05), and clinical pregnancy rate was increased by 8.36%; (2) EA intervention significantly reduced the TNF-α levels of follicular fluid (13.61±15.46 vs 34.09±93.53, P〈0.05); (3) TNF-α levels of serum and follicular fluid in the pregnancy group were lower than those of non-pregnancy group [pregnancy group: (53.91±63.32) pg/mL, (14.93±25.37) pg/mL, nonpregnancy group: (76.82 ± 82.96) pg/mL, (25.04 ± 35.79) pg/mL], and the differences were significant (both P〈0.05). Conclusion EA improves egg quality of PCOS patients and increases the clinical pregnancy rate of IVF-ET, the mechanism may be related to TNF-α levels. 展开更多
关键词 polycystic ovarian syndrome (PCOS) ELECTROACUPUNCTURE controlled ovarian hyperst-imulation (COH) tumor necrosis factor
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