. After FSH stimulates the follicle holding the egg that will next be released in ovulation, the follicle itself secretes estrogen to thicken the lining of the uterus. Glands inside the brain sense the increase in estrogen and curtail the production of FSH. When this occurs, the follicle ...
诱导GnRH受体下调,而GnRH拮抗剂竞争性地阻断GnRH受体,GnRH类似物可以降低其下游垂体中FSH和LH分泌,导致短暂的LH和FSH缺乏,用于防止过早排卵,进而通过诱导多个卵泡同时发育以达到获得更多成熟的卵母细胞的目的。
FSH is also used to trigger the follicular growth during the preovulatory stage. Once they reach the fully grown stage, the superovulation is thereafter induced by LH in livestock animals and human [25, 27, 28, 48–50]. Assuming that functional LH receptors are absent in CCs in the in ...
LH- and hCG-induced total cAMP productions were compared in murine primary Leydig cells by dose–response experiments, in the presence of IBMX, and evaluated by ELISA (Fig. 1). Although cAMP absolute levels suggest overall low response to human gonadotropin (Additional file 1), the treatments ...
and Davis, J.C. (1993) Measurement of serum levels of exogenously administered FSH and LH during ovulation induction therapy. GynecoL EndocrinoL, 7, 167-171.Mallya S, Abdulla UA, Davis JC 1993 Measurement of serum levels of exogenously administered FSH and LH during ovulation induction therapy....
方法 回顾性分析2013年1月至2015年12月在我院行早卵泡期长方案促排卵患者的临床资料(共1 331个周期),按照促排卵后第8天(D8)是否补充r-LH将患者分为观察组和对照组.观察组(689个周期):D8开始每天补充r LH至HCG注射日;对照组(642个周期):不添加r-LH,仅FSH促排卵至HCG注射日.比较两组患者的抱婴率、...
背景:本研究旨在探讨卵泡早期LH水平和LH:FSH比值对成熟卵泡数、获卵数、卵母细胞成熟度、胚胎质量和妊娠率的影响。 Methods: This retrospective observational study was undertaken in the High Institute of Infertility Diagnosis and Assisted Reproductive Technologies /Al-Nahrain University. The study included 115...
The seasonal pattern of LH and FSH in teleosts differ between different species. In salmonids for instance, FSH plasma levels predominate during spermatogenesis and vitellogenesis, whereas LH levels are high during spermiation in males and during final oocyte maturation and ovulation in females (...
fshovulationinductionconceptsrolecurrent 38TheroleofFSHandLHinovulationinduction:CurrentconceptsJuanBalaschINTRODUCTIONANDOVERVIEWTheovaryhastwoessentialphysiologicresponsibilities:Theperiodicreleaseofoocytesandtheproductionofthesteroidhormones,estradiol,andprogesterone.Bothactivitiesareintegratedintothecontinuousrepet-itiveprocess...
Plasma FSH concentrations were similar in control and inhibin-immunized lambs from 3 to 38 weeks of age. Plasma LH levels were lower (P<0.01) in inhibin-immunized than control lambs. During the 8-h blood sampling period at 20 weeks of age, LH and testosterone concentrations were lower (P<...