background :subclinical hypothyroidism may adversely affect in vitro fertilization (ivf) outcomes. however the cutoff of thyroid-stimulating hormone (tsh) for diagnosis and treatment is controversal. the aim of this study was to find the association of clinical pregnancy rate with regard to tsh levels in women undergoing ivf.   methods: a historical cohort study of 816 infertile patients who un...

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 ...

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 ...

the present study was aimed to examine the association of bovine follicular stimulating hormone gene polymorphism with sperm quality traits including sperm volume (sv), sperm concentration (spco), total sperm (ts), fresh sperm motility (fsm), total fresh motile sperm (tfms), post thaw sperm motility (ptsm), total post thaw motile sperm (tptms), number of produced payout (npp), number of fresh m...

background: poor ovarian response phenomenon has been observed in some of the in vitro fertilization-embryo transfer patients. some investigations found that follicle stimulating hormone receptor (fshr) gene plays a role in the process, but no direct evidence shows the correlation between genotypes of fshr and ovarian response. objective: exploring the molecular mechanism behind the mutation of...

background: the physiological changes in thyroid gland during pregnancy have been suggested as one of the pathophysiologic causes of preeclampsia. objective: the aim of this study was comparison of serum levels of tri?iodothyronine (t3), thyroxine (t4), and thyroid?stimulating hormone (tsh) in preeclampsia and normal pregnancy. materials and methods: in this case?control study, 40 normal pregna...

in this study 93 hirsute females (ferryman and gallway score > 8) referred to institute of endocrinology & metabolism and office were assessed. baseline testosterone (tes), dehydroepiandrosterane sulfate (dhea-so4). follicular stimulating hormone (fsh). leuteinizing hormone (lh), prolactin (prl), thyroid stimulating hormone (tsh), baseline 17 hydroxyprogesterone (17 ohp) and in some cases acth ...

OBJECTIVE The aim of this study was to determine if pregnancy outcome for women undergoing in vitro fertilization is correlated with pre-conception thyroid-stimulating hormone level. STUDY DESIGN We performed a retrospective cohort study of in vitro fertilization cycles in our private practice with an initial positive serum human chorionic gonadotropin level and thyroid-stimulating hormone le...