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汉语拼音：yùn tóng

黄体酮（progesterone）又称孕酮激素、黄体激素，是卵巢分泌的具有生物活性的主要孕激素。在排卵前，每天产生的孕酮激素量为2~3mg，主要来自卵巢。

• The women would take a pill with 10mg of progesterone, to stop ovulation, and a smaller amount of estrogen to ease discomfort.

  参加试验的女性要服用含有10毫克孕酮的避孕药以阻止排卵，然后再服用少量雌性激素减轻不适的感觉。

• Levonorgestrel, the most widely used emergency contraceptive pill, is only effective if women take it within three days of having sex.

  如果女性在性生活后三天之内，服用使用最广泛的紧急避孕药-左炔诺孕酮是唯一有效的。

• The research methods of the synthesis of the dydrogesterone were reviewed in the paper, and its applications were introduced and predicted.

  文章综述了去氢孕酮的合成研究方法，并对其应用前景作了展望。

• Mifepristone is an antagonist of 1 of the body's 2 cortisol receptors and its progesterone receptor.

  米非司酮是人体两个皮质醇受体其中一个和孕酮受体的拮抗剂。

• He did, however, like the progestin implant, which caused no side effects.

  然而，他非常喜欢不带任何副作用的孕酮植入。

• Too much intense aerobic activity can harm female fertility by reducing production of the hormone progesterone and inhibiting ovulation.

  过量的运动会减少孕酮的产生并抑制排卵。

• Conclusion: Cyproterone acetate is then an interesting choice when aggressive behavior is not improved with psychotropic drugs.

  结论：对于抗精神病药物治疗无效的攻击性行为，醋酸环丙孕酮是一种有效的方法。

• With progestin, the brain signals the testes to stop producing testosterone, arresting sperm production.

  大脑指示睾丸通过孕酮停止生产睾丸激素，进而阻止精子生产。

• If the egg is not fertilized, the level of progesterone drops, the uterine lining breaks down, and menstruation ensues.

  如果卵子没有受精，孕酮水平就会下降，子宫内层剥落，产生月经。