搜索结果: 16-22 共查到“性科学 estradiol”相关记录22条 . 查询时间(0.079 秒)
The direct pituitary effect of testosterone to inhibit gonadotropin secretion in men is partially mediated by aromatization to estradiol
LH FSH bioactivity androgens estrogens DHT
2009/2/12
In men, administration of exogenous testosterone (T) exerts direct negative feedback effects at the pituitary as well as at the hypothalamic level. This study was undertaken to determine whether T i...
Human Sertoli cells in vitro. Lactate, estradiol-17 beta and transferrin production
human Sertoli cells lactate estradioI-17ı 3 transferrin primary cultures
2009/2/11
Human Sertoli cell parameters, namely lactate, estradiol-17 beta, and transferrin production, were determined after a 24-hour incubation with either human follicle stimulating hormone (FSH) or dbcAM...
17 beta-estradiol inhibition of Leydig cell regeneration in the ethane dimethylsulfonate-treated mature rat
estradiol inhibition precursor cells ethane dimethylsulfonate
2009/2/7
This study was designed to determine the effects of 17 beta-estradiol (E2) on Leydig cell development in the rat. Mature (60 to 65 days old) male rats received a single intraperitoneal injection of ...
Specific regulatory actions of dihydrotestosterone and estradiol on the dynamics of FSH secretion and clearance in humans
Sex steroids pulsatile hormone episodic deconvolution
2009/2/7
The authors investigated immunoactive and bioactive follicle-stimulating hormone (FSH) secretion and clearance in six healthy young men during steady-state infusions of vehicle (basal, B, 28 hours),...
Plasma levels of estradiol, testosterone, and DHEAS do not predict risk of coronary artery disease in men
estrogens androgens aging cardiovascular disease cardiovascular risk factors
2009/2/6
Prior studies have reported men with coronary artery disease (CAD) to have elevated plasma levels of estrogens and reduced concentrations of dehydroepiandrosterone (DHEA) or DHEA-sulfate (DHEAS). ...
Effects of Estradiol Infusion in GnRH Immunized Boars on Spermatogenesis
Estrogen receptor spermatogenic stage apoptosis mitosis
2008/12/24
Active immunization of boars against gonadotropin-releasing hormone (GnRH) inhibits luteinizing hormone (LH) and testicular steroids, so that mitosis of spermatogonia is reduced and apoptosis increa...
Permanent Induction of Morphological Abnormalities in the Penis and Penile Skeletal Muscles in Adult Rats Treated Neonatally With Diethylstilbestrol or Estradiol Valerate：A Dose-Response Study
Estrogen DES fertility testosterone bulbocavernosus
2008/12/22
This study evaluated the effects of neonatal exposure to different doses of diethylstilbestrol (DES) or estradiol valerate (EV) on penile morphology, penile skeletal muscles, and fertility. Male pup...