Estradiol Levels and Secretory Dynamics in Normal Girls and Boys as Determined by an Ultrasensitive Bioassay: A 10 Year Experience
Estradiol Levels and Secretory Dynamics in Normal Girls and Boys as Determined by an Ultrasensitive Bioassay: A 10 Year Experience
复制标题
通过超灵敏生物测定测定正常女孩和男孩的雌二醇水平和分泌动态:10 年经验
DOI:
10.1515/jpem.2006.19.7.901
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发表时间:
2006
影响因子:
1.4
通讯作者:
Karen Oerter Klein
中科院分区:
文献类型:
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作者:
Mona Janfaza;T. I. Sherman;K. Larmore;J. Brown;Karen Oerter Klein
We utilized an ultrasensitive recombinant cell bioassay to measure serum estradiol in 800 normal children from birth through puberty. 105 children had repeat samples every 4 months as they approached puberty. We measured estradiol levels every hour for 24 hours in 55 children. Estradiol increased with age and pubertal stage in girls and boys, and was higher in girls than boys at each stage. Prepubertal girls have estradiol levels of 1.6 +/- 2.6 pg/ml. Prepubertal boys have estradiol levels of 0.4 + 1.1 pg/ml. Estradiol had a diurnal variation in girls and boys, with the trough occurring 08.00-20.00 h in girls, and 12.00-20.00 h in boys. We confirm that estradiol levels are higher in girls than boys even before physical signs of puberty, and that estradiol increases throughout puberty in girls and boys. This 10-year experience in 800 children shows the range and variability of estradiol by an ultrasensitive bioassay.
影响因子:
--
作者:
Mauras,N;Rogol,AD;Veldhuis,JD
通讯作者:
Veldhuis,JD
DOI:
10.1210/jcem.85.7.6676
发表时间:
2000
期刊:
The Journal of clinical endocrinology and metabolism.
影响因子:
--
作者:
Mauras,N;O'Brien,KO;Klein,KO;Hayes,V
通讯作者:
Hayes,V