نتایج جستجو برای: نرخ ivf
تعداد نتایج: 31877 فیلتر نتایج به سال:
بر اساس علاقه فزاینده موجود در استفاده از فناوری انتقال ژن بواسطه اسپرم (smgt) به عنوان یک روش ساده و موثر در تولید حیوانات تراریخته، در تحقیق حاضر امکان استفاده از این فناوری در تولید رویان های تراریخته بز برای اولین بار در جهان مورد بررسی قرار گرفته است. اسپرم بز با پنج غلظت مختلف (0 تا 500 نانوگرم) از پلاسمید pcdna/his/lac-z ترانسفکت گردید و برای لقاح آزمایشگاهی (ivf) و یا تزریق درون سیتوپلا...
سابقه و هدف: اگرچه امروزه ivf به عنوان یک تکنیک پرکاربرد در درمان ناباروری میباشد، اما مطابق مطالعات صورت گرفته، استرس ایجاد شده به واسطهی تغییرات اسمزی، اکسیژن، دما و ph در شرایط خارج از رحم میتواند باعث تغییرات مورفولوژیکی، ژنتیکی و اپیژنتیکی در جنینهای برونتنی نسبت به حالت درونتنی گردد. هدف از این مطالعه، بررسی تاثیر ivf بر کیفیت جنینها از طریق ارزیابی نرخ زندهمانی و رشد و همچنین ...
BACKGROUND We will assess to what extent in vitro fertilization (IVF) is effective in increasing the number of births overall and whether earlier application of IVF will increase this number. METHODS We simulate 100 000 women trying for their first and second child. Natural and IVF pregnancy rates and infertility rates are age-dependent and based on published data. The age at which women star...
In Vitro Fertilization Genetic Algorithm (IVF/GA) is a recently created algorithm that combine the concepts of Genetic Algorithm and In Vitro Fertilization. The IVF/GA has the aim to improve the performance of Genetic Algorithm with the addition of IVF-Inspired mechanisms that better exploit the information of individuals. The Multimensional Knapsack Problem (MKP) is a complex combinatorial pro...
In vitro fertilization (IVF) with reception of oocytes from partners (ROPA) allows lesbian mothers to share biological motherhood. The gestational mother receives an egg from her partner who becomes the genetic mother. This article examines the ethics of IVF with ROPA with a focus on the welfare of the woman and the resulting child, on whether ROPA qualifies as a "legitimate" medical therapy th...
BACKGROUND Women conceiving following in vitro fertilization (IVF) likely have a variety of risk factors that predispose them to gastroesophageal reflux disease (GERD) in the future. OBJECTIVE We aimed to investigate whether pregnancy through IVF may predispose to subsequent GERD compared with pregnancies without IVF. We also evaluate whether twin IVF pregnancies lead to additional risk for h...
STUDY QUESTION What is the cost-effectiveness of in vitro fertilization (IVF) with conventional ovarian stimulation, single embryo transfer (SET) and subsequent cryocycles or IVF in a modified natural cycle (MNC) compared with intrauterine insemination with controlled ovarian hyperstimulation (IUI-COH) as a first-line treatment in couples with unexplained subfertility and an unfavourable progno...
OBJECTIVE To examine the utilization and outcomes of natural cycle (unstimulated) IVF as reported to the Society of Assisted Reproductive Technology (SART) in 2006 and 2007. DESIGN Retrospective analysis. SETTING Dataset analysis from the SART Clinical Outcome Reporting System national database. PATIENT(S) All patients undergoing IVF as reported to SART in 2006 and 2007. INTERVENTION(S)...
Our meta-analysis analyzed the relationship between levels of reactive oxygen species (ROS) and fertilization rate after in vitro fertilization (IVF), and showed a statistically significant correlation between the ROS levels and the IVF fertilization rate (estimated overall correlation -0.374 [95% CI, -0.520, -0.205]). We conclude that ROS has a statistically significant effect on the fertiliza...
The perinatal outcome of pregnancies (both single and multiple) established after in-vitro fertilization (IVF)-surrogacy was evaluated and compared to the outcome of pregnancies that resulted from standard IVF. Analysis of medical records and a telephone interview with physicians, IVF-surrogates, and commissioning mothers were conducted to assess prenatal follow up and delivery care in several ...
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