نتایج جستجو برای: oocyte donation
تعداد نتایج: 24731 فیلتر نتایج به سال:
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It is well known that maternal ageing not only causes increased spontaneous abortion and reduced fertility, but it is also a high genetic disease risk. Although assisted reproductive technologies (ARTs) have been widely used to treat infertility, the overall success is still low. The main reasons for age-related changes include reduced follicle number, compromised oocyte quality especially aneu...
This document provides the latest recommendations for evaluation of potential sperm, oocyte, and embryo donors, incorporating recent information about optimal screening and testing for sexually transmitted infections, genetic diseases, and psychological assessments. This revised document incorporates recent information from the U.S. Centers for Disease Control and Prevention, the US Food and Dr...
female fertility begins to decline many years prior to the onset of menopause despite continued regular ovulatory cycles. age related infertility is due to oocyte abnormalities and decreased ovarian reserve. treatment of infertility when the cause is limited to decreased ovarian reserve is empirical at present except for oocyte donation. this mini review of the literature covers all available e...
Efforts have intensified to successfully mature and inseminate oocytes in vitro and then culture ensuing embryos to transferable stages from a large number of mammalian species. Success varies, but generally even for the most successful species it is only possible to obtain a maximum of a 40 to 50% development of zygotes to the blastocyst stage. Reduced oocyte developmental competence is sugges...
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