نتایج جستجو برای: follicle stimulating hormone

تعداد نتایج: 197637  

Journal: :international journal of reproductive biomedicine 0
ramaswamy suganthi subbian manonayaki jahangir ali fathima benazir

background: polycystic ovary syndrome (pcos) is a disorder in which there are numerous benign cysts that form on ovaries under a thick white covering that is one of the causes of infertility. follistatin is a single chain glycosylated polypeptide that can bind to activin. when follistatin binds to activin it suppresses the role of activin to stimulate the secretion of follicle stimulating hormo...

Journal: :journal of research in health sciences 0
mohammad reza rezvani seyed alireza saadatjou shahabaddin sorouri mohammad hassanpour fard

background: diabetic men have been claimed to have lower serum free testosterone (ft) concentrations than non-diabetic men. the aim of this study was to investigate if serum ft, luteinizing hormone (lh), and follicle stimulating hormone (fsh) concentrations are different in patients with type 2 diabetes mellitus compared with healthy men and to identify factors associated with low serum testost...

Journal: :کومش 0
محمدرضا اکبری عیدگاهی m.r. akbari eidgahi biotechnology researches center, semnan university of medical sciences, semnan, iranدانشگاه علوم پزشکی سمنان، مرکز تحقیقات بیوتکنولوژی رضا نصر r. nasr dept. of microbiology, azad university of jahrom, jahrom, iranدانشگاه آزاد اسلامی جهرم، گروه میکروبیولوژی علی اکبر شعبانی a.a. shaebani biotechnology researches center, semnan university of medical sciences, semnan, iranدانشگاه علوم پزشکی سمنان، مرکز تحقیقات بیوتکنولوژی مجید مقبلی m. moghbeli dept. of microbiology, azad university of damqan, damgan, iranدانشگاه آزاد اسلامی دامغان، گروه میکروبیولوژی

introduction: follicle stimulating hormone (fsh) is one of the pituitary glycoproteines that it consists of two subunits alpha and beta. the beta subunit is responsible for the biological activity of fsh. the aim of present study was isolation of the β subunit coding sequence containing its signal sequence from human genome and then cloning of the isolated sequence in ppic9 shuttle vector under...

Journal: :international journal of reproductive biomedicine 0
ensieh shahrokh tehraninezhad fatemeh mehrabi raheleh taati vahid kalantar elham aziminekoo azam tarafdari

background: the predictive roles of follicle stimulating hormone (fsh), anti-mullerian hormone (amh) and antral follicle count (afc) as ovarian reserve markers in women with different age groups are not established well. objective: this study compares the value of fsh, amh and afc at the time of     in vitro fertilization (ivf) treatment in different age groups. materials and methods: in this c...

Journal: :iranian journal of veterinary science and technology 0
reza narenji sani parviz tajik mohammad hasan yousefi mansoureh movahedin shiva shafiei

stem cells are generally defined as clonogenic cells capable of both self-renewal and differentiation. probably the best method for long-term preservation of spermatogonial stem cells is cryopreservation. in this study, effects of follicle stimulating hormone and testosterone on viability rate of cryopreserved spermatogonial stem cell after thawing were investigated. sertoli and spermatogonial ...

Journal: :international journal of reproductive biomedicine 0
aisha javed1 saeed rezaei-zarchi morteza anvari madiha javeed fatemeh barzegari firouzabadi amer jamil

background: in vitro maturation (ivm) of oocytes reduces the costs and averts the side-effects of gonadotropin stimulation for in vitro fertilization (ivf). reliable ivm is an intellectual, scientific and clinical challenge with a number of potential applications. objective: the effect of hcg was evaluated on the timing and regulation of in vitro ovulation for the syrian mice oocytes in the pre...

Journal: :iranian journal of biotechnology 2015
zahra elyasi gorji amir amiri-yekta hamid gourabi saeed hassani nayeralsadat fatemi

background: follicle stimulating hormone (fsh) plays an essential role in reproductive physiology and follicular development. objective: a new variant of the equine fsh (efsh) gene was cloned, sequenced, and expressed in pichia pastoris (p. pastoris) gs115 yeast expression system. materials and methods: the full-length cdnas of the efshα and efshβ chains were amplified by reverse transcription ...

Journal: :international journal of reproductive biomedicine 0
mustafa kara tayfun kutlu kenan sofuoglu belgin devranoglu tansel cetinkaya

background: estradiol (e2) is required for follicular development and play an important role in embryo implantation. objective: the aim of this study was to assess the impact of serum e2 levels on the day of hcg administration in ivf-icsi patients who are performed controlled ovarian hyperstimulation (coh). materials and methods: a total of 203 women who were undergone one time ivf cyclus were ...

Journal: :iranian biomedical journal 0
amer jamil aisha javed aisha javed amer jamil سعید رضایی زارچی saeed rezaei-zarchi سید مهدی کلانتر seyed mehdi kalantar مرتضی انوری morteza anvari حبیب ناظم habib nazem

objectives: it was aimed to investigate the effects of different doses of follicle stimulating hormone (fsh) and activin a on the growth and maturation of preantral mouse follicles during the in vitro culture. methods: preantral follicles (90-100 µm in diameter) were harvested from 6-8 week-old syrian mice and cultured in tcm199 culture medium for 6 days to see the effect of fsh and activin a. ...

Journal: :international journal of reproductive biomedicine 0
amabe o. akpantah moses b. ekong kelechi c. uruakpa mfon akpaso mokutima a. eluwa theresa b. ekanem

background: azadirachta indica is a tree with most of the parts having various medicinal values. it is however popular because of its high potencies, as antimalarial and anti-fertility agents, which the locals still exploit. objective: we investigated the effect of the methanol leaf extract on the serum levels of the pituitary-gonad hormones and the histo-morphology of the ovary and uterus of a...

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