نتایج جستجو برای: fsh range
تعداد نتایج: 675161 فیلتر نتایج به سال:
BACKGROUND Adding clomiphene citrate (CC) to FSH for controlled ovarian stimulation (COS) decreases FSH dose required for optimum stimulation. However, because of its anti-estrogenic effects, CC may be associated with lower pregnancy rates offsetting the FSH-dose reduction benefit. Previously, we reported the success of aromatase inhibition in inducing ovulation without antiestrogenic effects. ...
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), dihydrotestosterone (DHT, 4.5 days), or estradiol (4.5 days) accompanied by blood sampling at 10-minute intervals for 28 hours. Serum FSH concentrations were assayed by a two-site immunoradiometric ...
A series of experiments were conducted to evaluate the effects of FSH supplementation during IVM on porcine oocyte nuclear maturation, and subsequent fertilization, cleavage and embryo development. Cumulus-oocyte complexes (COCs) were cultured 40 h without FSH (control), 40 h with FSH (FSH 0-40 h), or 20 h with FSH followed by a 20-h culture period without FSH (FSH 0-20 h). Nuclear stage of ooc...
A sequential medium was evaluated on the survival, activation and growth rates of caprine preantral follicles submitted to a long-term culture period, aiming to establish an ideal in vitro culture system. Ovarian fragments were cultured for 16 days in α-MEM(+) alone or supplemented with hormones (GH and/or FSH) added sequentially on different days of culture. Ovarian fragments were cultured in ...
STUDY QUESTION Do parameters which are involved in pathogenesis of polycystic ovarian syndrome (PCOS) predict the dosage of recombinant FSH required to achieve monofollicular development for ovulation induction? SUMMARY ANSWER Anti-Mullerian hormone (AMH) appeared to be an independent predictor of the required dosage of FSH to achieve monofollicular development for ovulation induction in a st...
BACKGROUND The follicle-stimulating hormone receptor (FSH-R) is a seven transmembrane spanning receptor (7TMR) which plays a crucial role in male and female reproduction. Upon FSH stimulation, the FSH-R activates the extracellular signal-regulated kinases (ERK). However, the mechanisms whereby the agonist-stimulated FSH-R activates ERK are poorly understood. In order to activate ERK, some 7 TMR...
Sex hormones regulate cholangiocyte hyperplasia in bile duct-ligated (BDL) rats. We studied whether follicle-stimulating hormone (FSH) regulates cholangiocyte proliferation. FSH receptor (FSHR) and FSH expression was evaluated in liver sections, purified cholangiocytes, and cholangiocyte cultures (NRICC). In vivo, normal female and male rats were treated with FSH or immediately after BDL with a...
BACKGROUND Ovarian stimulation for assisted reproductive technology (ART) overcomes the physiologic process to develop a single dominant follicle. However, following stimulation, egg recovery rates are not 100%. The objective of this study is to determine if the follicular fluid hormonal environment is associated with oocyte recovery. METHODS This is a prospective study involving patients und...
در مطالعه حاضر اثرات تزریق گنادوتروپین سرم مادیان آبستن (pmsg) به همراه هورمون محرک رشد فولیکولی (fsh) و هورمون آزادکننده گنادوتروپین (gnrh) بر رشد فولیکولی و برهزایی میشهای نژاد افشاری مورد بررسی قرار گرفت. چرخه فحلی 80 راس میش نژاد افشاری چندشکم با میانگین وزنی 5/2± 68 و bcs 5/3-5/2، با استفاده از سیدرهای پروژسترونی 14 روزه همزمان سازی شد. 400 واحد از گنادوتروپین سرم مادیان آبستن (pmsg) همز...
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