نتایج جستجو برای: fertilization in
تعداد نتایج: 16980678 فیلتر نتایج به سال:
هدف از آزمایش اول بررسی اثر سطوح مختلف سریسین [0 (control), 0.1, 0.5, 1.0, 2.5 %] افزوده شده به محیط , ivm بر cumulus cell expansion، بلوغ هسته و توسعه متوالی جنین، در گوسفندان نژاد سنجابی در فصل تولید مثلی می باشد. از سرگیری میوز به وسیله خارج شدن اولین پولار بادی اندازه گیری و هم چنین درصد رسیدن جنین های دو سلولی به مرحله کلیواژ و بلاستوسیت نیز به عنوان نشانه ای از میزان شایستگی توسعه اولیه ج...
Background One the main aspects of an in vitro fertilization (IVF) cycle is to avoid any possible systemic damage to women undergoing to a controlled ovarian hyperstimulation (COH). The aim of this work is to evaluate renal and hepatic function blood tests in patients undergoing controlled ovarian hyperstimulation during IVF cycles. MaterialsAndMethods All patients received a long stimulation p...
Background: Although in vitro fertilization (IVF) has been found to bypass the inhibitory effect of high levels of antisperm antibodies on sperm motility, fertilization rates are reduced in approximately 40% of the attempts. In this study, we investigated the relationship between antisperm antibodies measured by the direct mixed agglutination reaction (MAR) and the fertilization rate in inferti...
مقدمه: امروزه استفاده از تکنیک های کمک باروری، مشکل بسیاری از افراد نابارور را برطرف نموده است. تکرار سیکل های درمانی، صرف وقت و هزینه ی به نسبت زیاد و مشکلات احتمالی ناشی از بیهوشی های مکرر، محققین را به سمت یافتن راه هایی برای پیش بینی میزان موفقیت هر یک از تکنیک ها هدایت نموده است. این تحقیق، با هدف بررسی میزان موفقیت روش های کمک باروری انجام گرفت. روش ها: مطالعه ی حاضر، گذشته نگر بود و جمعی...
background: approximately one percent of current live births of the world are conceived via assisted reproductive technologies (art). objective: the purpose of this study was to compare the developmental status of children born through assisted and natural conceptions at the age of five years. materials and methods: in a retrospective cohort study, developmental status of 5 years old children...
چکیده ندارد.
harlequin ichthyosis is a rare and the most severe form of congenital ichthyosis. although prenatal diagnosis is difficult for this disorder, recently, this obstacle has markedly improved with the use of dna-based prenatal diagnosis. here in, we presented a neonate with harlequin ichthyosis born by assisted reproductive technology (art). in this case, the diagnosis of harlequin ichthyosis was n...
background: peroxisome proliferative-activated receptors (ppars) are nuclear receptors that involved in cellular lipid metabolism and differentiation. the subtype ? of the ppar family (ppar?) plays important roles in physiologic functions of ovaries. objective: to determine correlation between ppar? protein level in granulosa cells and pregnancy rate in women undergoing in-vitro fertilization (...
background: implantation remains a limiting step in ivf/icsi. endometrial injury isa promising procedure aiming at improving the implantation and pregnancy rates after ivf/icsi. objective: the aim of this study was to evaluate the effect of endometrial injury induced in precedingcycle on ivf/icsi outcome. materials and methods: four hundred patients undergoing their first ivf/icsi cycle in two ...
Introduction: Several factors are involved in failed fertilization following intracytoplasmic sperm injection (ICSI), which could be related to sperm, oocyte factors and/or both. Failure in oocyte activation is considered as the most important factor in failed fertilization after ICSI. To overcome this shortcoming, artificial oocyte activation (AOA) after ICSI has been suggested. Commonly, iono...
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