The endocrinology of puberty and reproductive functioning in female cotton-top tamarins (Saguinus oedipus) under varying social conditions.
The endocrinology of puberty and reproductive functioning in female cotton-top tamarins (Saguinus oedipus) under varying social conditions.
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不同社会条件下雌性棉顶狨猴（Saguinus oedipus）青春期的内分泌和生殖功能。
DOI：
10.1095/biolreprod37.3.618
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发表时间：
1987
影响因子：
3.6
通讯作者：
Snowdon,CT
中科院分区：
文献类型：
--
作者：
Ziegler,TE;Savage,A;Scheffler,G;Snowdon,CT
对14只雌性俄狄浦斯棉顶绢毛猴在不同社会条件下的性成熟和生育力进行了评价。6只雌性绢毛猴（20 ~ 28月龄）在与家人生活时表现出生育能力的抑制。激素谱显示低，无循环水平的尿黄体生成素（LH）和雌激素缀合物（E1C）。当6只雌性中有4只被从其家庭中分离出来并与一名不相关的雄性配对时，卵巢和垂体周期的快速发作发生了。在一名女性中，排卵LH高峰早在配对后8天就出现了，导致受孕和足月妊娠。6只雌性中的2只在离开家庭后和配对前被完全隔离了30天。隔离期间激素浓度逐渐升高；然而，直到每只雌性与不相关的雄性配对，才会出现卵巢周期。在所有6名女性中，受孕发生在第三个排卵周期之前或之后。部分分离的36岁女性导致LH和E1C水平升高，但直到女性与不相关的男性配对才观察到循环。这些发现表明，仅仅将雌性从家族中移除并不会启动卵巢周期。性成熟或青春期发生在15 - 17月龄的雌性绢毛猴中，此时平均LH和E1C水平开始升高。然而，当一个女性在9月龄时与一个无关的男性配对时，在10月龄和11月龄时可能会看到LH和E1C水平升高。研究结果表明，与家族生活在一起的棉顶绢毛猴生殖力受到抑制，但生殖抑制不影响性成熟过程。要诱导正常的生殖活动，必须将其从家庭环境中移除，并受到不相关的雄性绢毛猴的刺激。当一只雌性绢毛猴在发育早期被从她的家庭中带走并与一只雄性绢毛猴配对时，青春期就会加速。
Sexual maturation and fertility were assessed in fourteen cotton-top tamarin (Saguinus oedipus) females under various social conditions. Six tamarin females (20–28 mo of age) showed a suppression of fertility while living with their families. Hormonal profiles demonstrated low, acyclic levels of urinary luteinizing hormone (LH) and estrone-conjugates (E1C). A rapid onset of ovarian and pituitary cyclicity occurred when four of the six females were removed from their families and paired with an unrelated male. In one female, an ovulatory LH peak occurred as early as eight days after pairing and resulted in conception and full-term pregnancy. Two of the six females were housed in total isolation for 30 days following their removal from the family and prior to pairing. Gradual increases in hormone concentrations occurred during isolation; however, there was no ovarian cyclicity until each female was paired with an unrelated male. In all six females, conception occurred before or as a result of the third ovulatory cycle. Partial isolation of a 36-mo-old female resulted in elevated LH and E1C levels, but cyclicity was not observed until the female was paired with an unrelated male. These findings indicate that removal of a female from the family alone does not initiate ovarian cycling. Sexual maturation, or puberty, occurs in female tamarins living with their families between 15 and 17 mo of age when mean LH and E1C levels began to increase. However, when a female is removed and paired at 9 mo of age with an unrelated male, elevated levels of LH and E1C may be seen by 10 and 11 mo of age. Our findings indicate that a suppression of fertility occurs in cotton-top tamarins living with their families, but that reproductive suppression does not affect the process of sexual maturation. Both removal from the family environment and stimulation by an unrelated male tamarin were necessary to induce normal reproductive activity. An acceleration of puberty occurred when a female tamarin was removed from her family early in development and paired with a male.