نتایج جستجو برای: number of oocytes

تعداد نتایج: 21179456  

Journal: :ارمغان دانش 0
دکتر جواد بهار آراء j baharara دکتر نزهت موسوی فر n moosavifar دکتر محسن جلالی m jalali فرزانه عدل f adl

abstract: introduction & objective: the infertility treatment by using in vitro matured oocyte has many potential applications. it minimizes the risk of ovarian hyper stimulation and is an alternative treatment for women with polycystic ovarian syndrome who may have problems regarding stimulation for ivf. this method may prove important for subjects in need of fertility preservation and also pr...

Journal: :international journal of reproductive biomedicine 0
robabeh taheripanah mohammad a karimzadeh mohammad ghafourzadeh

background: the retrieval of good quality oocytes that is accomplished with selection of the best induction ovulation protocol on the basis of patients condition, age and cause of infertility, is one of the most important aspects of art cycles. the objective was to evaluate the efficacy of low dose, long acting gnrh-a (decapeptyle) for pituitary desensitization and outcome of art compared to lo...

Journal: :journal of family and reproductive health 0
batool hossein rashidi reproductive health research center, tehran university of medical sciences, tehran, iran tahereh behrouzi lak reproductive health research center, department of infertility, urmia university of medical sciences, urmia, iran ensiyeh shahrokh tehrani reproductive health research center, tehran university of medical sciences, tehran, iran fatemeh davari tanha department of obstetrics and gynecology, mohebeyas hospital, tehran university of medical sciences, tehran, iran

objective: this study was conducted to compare the results of fixed versus flexible gnrh antagonist protocols in controlled ovarian stimulation for intra cytoplasmic sperm injection (icsi) in patients with pcos. materials and methods: a randomized clinical trial was performed on 100 pcos women, who were admitted to a tertiary infertility clinic and were candidate for ivf/icsi. they were divided...

M Goudarzvand MH Bahadori P TorabZadeh S Saffari, SH Sharami

Background According to the global increasing trend of infertility, using assisted reproductive technologies to solve this issue is recommended. It seems that vitamin E is an antioxidant with protective role in the body. Therefore, we aimed to investigate the relation between levels of vitamin E in Follicular fluid with the morphology of oocytes and the quality of embryos in patients with IVF. ...

this thesis attempts to investigate the effects of prelistening activities on enhancing iranian efl learners` listening comprehension. the present study investigated ways in which learners` background knowledge could be activated in order to enhance their l2 listening comprehension by limiting the number of possible text interpretations prior to listening. the experiments conducted in this study examined the effect of prior knowledge and vocabulary teaching on iranian efl learners listening comprehension. the current study has two purposes: one is to investigate the effect of background knowledge on the second language listening comprehension of iranian intermediates and the other is to determine whether second language is facilitated by the introduction of unknown vocabularies in the form of prelistening activities. to conduct the study different instruments such as listening proficiency test and four listening tests such as pre and posttests were used and various statistical processes and techniques including paired-sample t-test, and analysis of variance (anova) were used. the findings of this study supported all three hypotheses tested. differences were found between the means of preteaching vocabulary variable, the background knowledge activation variable, and mean difference between these two strategies variable. subjects scored higher when the unknown words were taught in advance. likewise, subjects scored higher when they were asked some relevant questions about the topic than on those without them. there was, in addition, a significant difference between the means of preteaching vocabulary strategy and background knowledge activation strategy. in fact, preteaching vocabulary had a better effect in enhancing the students’ listening comprehension, in comparison to background knowledge activation strategy.

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده زبانهای خارجی 1390

this thesis attempts to investigate the effects of prelistening activities on enhancing iranian efl learners` listening comprehension. the present study investigated ways in which learners` background knowledge could be activated in order to enhance their l2 listening comprehension by limiting the number of possible text interpretations prior to listening. the experiments conducted in this stud...

Etebary S Golestan Jahromi M, Khalili MA Yari N

Background: Intracytoplasmic sperm injection (ICSI) is the choice option for treatment of couples with severe male infertility. Recent studies indicate that the ICSI procedure or the technique itself cannot increase chromosomal abnormalities observed in born children. It maybe result of the Materialss used during ICSI procedure such as PVP and hyalorunidase. Activation of the oocytes might be c...

حسینی, احمد, رئوفی, آزاده, شادمانی, کیمیا, عبدالهیان, پروانه, مهرافزا, مرضیه, نجفی, مریم, نیکپوری, زهرا, وجودی, الهام,

Background: Anti-Müllerian Hormone (AMH) is secreted from granulosa cells of growing follicles and is a useful marker of ovarian reserve. Fertility in women is determined by the quality and quantity of follicle pool and ovarian follicular reserve positively correlates with AMH. In this study we aimed to determine if AMH can predict ovarian response in IVF treatments.Methods: In this retrospecti...

توکل‌نیا, رحیم , حسینی, احمد , رئوفی, آزاده , رحیمیان, طلیعه , عبدالهیان, پروانه , مهرافزا, مرضیه , نیکپوری, زهرا , گل‌محمدی, ابوالفضل ,

Background: With introduction of intracytoplasmic sperm injection with testicular sperm extraction or precutaneouse epididymal sperm aspiration, effective treatment was provided for azoospermic men. The aim of present study was to compare clinical outcome following intracytoplasmic sperm injection using extracted testicular/epididymal sperm or ejaculated severe oligoasthenoteratozoospermic sper...

Journal: :international journal of molecular and cellular medicine 0
mir mehrdad farsi fatemeh zahra infertility and health reproductive research center, babol university of medical sciences, babol, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی بابل (babol university of medical sciences) nematollah kamali department of anatomical sciences, babol university of medical sciences, babol, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی بابل (babol university of medical sciences) mohsen pourghasem cellular and molecular biology research center (cmbrc), babol university of medical sciences, babol, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی بابل (babol university of medical sciences)

in vitro maturation (ivm) is a method that immature oocytes in antral follicles are extracted and matured in laboratry conditions. this review has attempted to provide the current knowledge and recent findings in in vitro maturation of oocytes and highlights the most important factors involved in this process. the review is based on literature reports and the author’s experience. in ivm cycles,...

Journal: :avicenna journal of medical biotechnology 0

the aim of this study was to compare the effect of time of parthenogenetic activation (22 hr versus 27 hr after in vitro maturation-ivm) on in vitro development of ovine oocytes using either single (ionomycin 5 ?m for 5 min or ethanol 7% for 7 min) or combined (ionomycin and ethanol with 6-dmap 2 mm for 3 hr) activation treatments. the abattoir-derived in vitro matured activated oocytes were cu...

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