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卵泡液中LH E 2 P与女性年龄的相关性分析
卵泡液 促黄体生成素(LH) 雌二醇(E2) 孕激素(P) 女性年龄 相关性分析
2020/12/22
通过检测不同年龄组不孕症患者卵泡液促黄体生成素（luteotropic激素，LH），雌二醇（Estradial，E 2），孕激素（孕酮，P）水平，分析卵泡液LH，E 2，P与女性年龄的相关性。方法：选择我院2017年7月至2018年6月期间收治的140例接受IVF-ET / ICSI助孕的患者作为研究对象，按照年龄分为A，B ，C3个组，A组（<35岁，n = 55），B组（35〜3...
Stimulation of the proliferation and differentiation of Leydig cell precursors after the destruction of existing Leydig cells with ethane dimethyl sulphonate（EDS）can take place in the absence of LH
proliferation differentiation Leydig cell precursors
2009/2/23
In hypophysectomized rats, 2 days after the administration of the cytotoxic drug ethane dimethyl sulphonate (EDS), the proliferative activity of Leydig cell precursors increased six-fold. Thus, fact...
The pattern of LH release in the adult ram influences the testicular steroidogenic response to individual LH pulses and is regulated by testosterone negative feedback
LH release adult ram influences testicular steroidogenic individual LH pulses
2009/2/23
Two experiments were conducted with adult intact rams (approximately 58 kg in body weight) in the nonbreeding season to investigate interrelationships between LH and testosterone secretion. In Exp...
Sex steroid inhibition of LH induction of the LH receptor
estrogen testosterone luteinizing hormone receptor testis Leydig cell
2009/2/23
Testosterone and estrogen were tested as possible mediators of the prolactin-dependent LH induction of LH receptors in hypophysectomized adult male rats. Animals were injected s.c. with saline, pr...
Characteristics of prolactin-modulated LH induction of LH/hCG receptors. Transient inhibition of receptor induction following prolactin exposure
LH luteinizing hormone
2009/2/23
The temporal relationship between exposure to prolactin (PRL) and luteinizing hormone (LH) induction of LH receptors was investigated in hypophysectomized adult male rats. Testicular homogenate me...
Different testosterone and LH relationships in infertile men
Different testosterone LH relationships infertile men
2009/2/23
In both man and animals, changes in Leydig cell structure and function accompany seminiferous tubule damage. In this study of 1745 men attending an infertility clinic, 14% of men with elevated lev...
Spectrum of the pulsatile characteristics of LH release in normal men
pulsatile characteristics LH release normal men
2009/2/23
To assess the spectrum of LH pulse characteristics in normal men, blood samples from 36 individuals were drawn at 20-minute intervals for 8 hours. The subsequent immunoactive LH concentrations were ...
Changes in serum levels of LH, FSH, prolactin, testosterone, and cortisol associated with season and mating in male pygmy goats
serum levels LH FSH prolactin testosterone cortisol season male pygmy goats
2009/2/20
Four male pygmy goats were used in a study designed to determine the effects of season on serum hormone (luteinizing hormone, follicle stimulating hormone, prolactin, testosterone, and cortisol) l...
Prolonged suppression of plasma LH levels in male rats after a single injection of an LH-RH agonist in poly（DL-lactide-co-glycolide）microcapsules
LH-RH agonist biodegradable microcapsules LH PRL rats
2009/2/20
The authors have examined the effects of a subcutaneous injection of the LH-RH agonist D-Trp6-LH-RH formulated in biodegradable poly(DL-lactide-co-glycolide) microcapsules on plasma levels of D-Tr...
Testicular LH receptors during aging in Fisher 344 rats
LH receptors testicular tumors Fisher 344 rats aging
2009/2/20
Levels of serum LH, prolactin, testosterone, progesterone and 17-OH progesterone and the testicular concentration and total content of LH receptors were measured in 4-, 11-, 18-, and 27-month-old Fi...
Individual differences in LH and FSH responses to orchidectomy and testosterone replacement therapy in rams
Individual differences LH FSH rams
2009/2/19
Profiles of LH and FSH levels and pituitary LH responses to exogenous luteinizing hormone releasing hormone (LHRH) have been characterized in rams, castrated rams (wethers), and wethers implanted wi...
Testosterone Pretreatment and the Response of Pituitary LH to Gonadotropin-Releasing Hormone（GnRH）in the Male Dog
GnRH LH-response testosterone dog
2009/2/19
To characterize the effects of testosterone (T) pretreatment on the response of pituitary LH secretion to exogenous gonadotropin-releasing hormone (GnRH), intact male dogs were injected subcutaneo...
The cellular mechanisms of corticotropin-releasing hormone（CRH）-stimulated steroidogenesis in mouse Leydig cells are similar to those for LH
MA-b Progesterone testosterone
2009/2/17
Previous reports have demonstrated that corticotropin-releasing hormone (CRH) treatment of primary cultures of mouse Leydig cells and MA-10 mouse Leydig tumor cells results in a dose-dependent sti...
HCG binding to the testicular LH receptor is similar in fertile, subfertile, and infertile stallions
Fertility horses testis
2009/2/17
Recent evidence in our laboratory suggests that the cause of idiopathic subfertility/infertility in breeding stallions may originate in the testes at the luteinizing hormone (LH) receptor or postr...
In the male brown-Norway (BN) male rat, reproductive aging is associated with decreased LH-pulse amplitude and area
FSH testosterone pulsatile secretion
2009/2/17
The Brown-Norway (BN) rat has been proposed as a rodent model for the study of human male reproductive aging. As in man, reduction in serum or plasma testosterone (T) and both testicular (primary)...