发情周期
内科学
内分泌学
催乳素
下丘脑
促性腺激素
促黄体激素
卵巢
促卵泡激素
分泌物
生物
激素
化学
医学
作者
T. A. Parkening,Thomas J. Collins,Edward R. Smith
标识
DOI:10.1016/0197-4580(82)90058-6
摘要
—Plasma and pituitary concentrations of LH, FSH, and prolactin (Prl) were measured by RIA in 2–4, 7–8, 12–13 and 16–20 month-old female C57BL/6 mice during various stages of the estrous cycle. In general, gonadotropin concentrations tended to rise with increasing age and Prl concentrations tended to decline. Pronounced differences existed, however, between the four age groups around the time of the LH surge. LH secretion declined progressively with increasing age at 21.00 hr of proestrus. Aged mice, 16–20 months old, had significantly lower plasma concentrations of LH than did other age groups. It is not known whether age-related changes in the ovary, pituitary, or hypothalamus are largely responsible for differences in the secretion of LH, FSH and Prl in aging C57BL/6 mice.
科研通智能强力驱动
Strongly Powered by AbleSci AI