两种品系雌性大鼠催乳素和生长激素水平的昼夜节律模式。
Circadian pattern of prolactin and growth hormone levels in female rats of two strains.
作者信息
Esber H J, Kuo E, Bogden A E
出版信息
Lab Anim Sci. 1976 Apr;26(2 Pt l):186-9.
PMID:944833
Abstract
Plasma growth hormone and prolactin levels were determined by radioimmunoassay at intervals of 2 hr during the light phase of a controlled light-dark cycle in virgin female (COBS F/Crl BR) and [Sch:SPD(SD)BR] rats. Peak prolactin concentrations were observed in the afternoon during proestrus and estrus in both rat stocks. Growth hormone exhibited wide fluctuations in the Sch:SPD rat, attaining peak levels at 1300 hr, but no apparent periodicity was observed in the COBS rats.
摘要
在可控的明暗循环光照期，每隔2小时通过放射免疫分析法测定未交配雌性（COBS F/Crl BR）和[Sch:SPD(SD)BR]大鼠血浆中的生长激素和催乳素水平。在两种品系的大鼠中，发情前期和发情期的下午均观察到催乳素浓度峰值。生长激素在Sch:SPD大鼠中波动较大，在13:00达到峰值水平，但在COBS大鼠中未观察到明显的周期性。
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