نتایج جستجو برای: ivf failures
تعداد نتایج: 49090 فیلتر نتایج به سال:
Rough set theory was proposed by Pawlak [1] as a mathematical tool to handle imprecision and uncertainty in data analysis. It has been successfully applied tomachine learning, intelligent systems, inductive reasoning, pattern recognition, mereology, image processing, signal analysis, knowledge discovery, decision analysis, expert systems, and many other fields [2–5]. The basic structure of roug...
BACKGROUND Most implantation failures after successful in vitro fertilization-embryo transfer (IVF-ET) result from inadequate uterine receptivity. There is currently no way to predict this receptivity. METHODS We investigated whether the detection of interleukin-(IL)18 by ELISA in uterine luminal secretions might predict implantation failure. Secretions of 133 patients enrolled in our IVF-ET ...
BACKGROUND Although older maternal age is a risk factor for pregnancy complications, an increasing number of women delay conception until the age of 40, and some must resort to IVF with oocyte donation. Our objective was to study the association between IVF, both with and without oocyte donation, and maternal and perinatal outcomes in a population of older women. METHODS This retrospective st...
BACKGROUND The p53 tumour suppressor gene is a well-known factor regulating apoptosis in a wide variety of cells. Alterations in the p53 gene are among the most common genetic changes in human cancers. Several polymorphisms of the p53 tumour suppressor gene have been associated with recurrent pregnancy loss (RPL). AIMS To evaluate the association of polymorphisms p53 codon 72 with the respons...
Since the introduction of in vitro fertilization (IVF) in 1978, over five million babies have been born worldwide using IVF. Contrary to the perception of many, IVF does not guarantee success. Almost 50% of couples that start IVF will remain childless, even if they undergo multiple IVF cycles. The decision to start or pursue with IVF is challenging due to the high cost, the burden of the treatm...
Women who suffer from fertility issues often use in vitro fertilization (IVF) to realize their wish to have children. However, IVF has its own set of strict administration rules that leave the women physically and emotionally exhausted. Feeling alienated and frustrated, many IVF users turn to internet IVF-centered forums to share their stories and to find information and support. Based on the o...
Meiotic errors during oocyte maturation are considered the major contributors to embryonic aneuploidy and failures in human IVF treatment. Various technologies have been developed to screen polar bodies, blastomeres and trophectoderm cells for chromosomal aberrations. Array-CGH analysis using bacterial artificial chromosome (BAC) arrays is widely applied for preimplantation genetic diagnosis (P...
BACKGROUND To date the IMSI procedure represents the only real-time and unstained method available to discard spermatozoa with ultrastructural defects. Several studies demonstrated that IMSI provides positive results in couples with severe male factor infertility or repeated ICSI failures. Aim of this pilot study is to evaluate the differences between IMSI and ICSI in terms of IVF outcomes in a...
Unusual and consistent defects in infertility patients merit attention as these may indicate an underlying genetic abnormality, in turn necessitating tailored management strategies. We describe a case of repeated early pregnancy loss from in vivo conceptions, followed by cancelled embryo transfers after one IVF and one ICSI/PGD cycle. Following the unexpected presence of cleaved embryos at the ...
To quantify and compare endometrial CD4+ and CD8+ cells in women with failed implantation following embryo transfer and infertile women using immunohistochemistry. It was a case control study that was done at Al-Amin Maternity Hospital, Saudi Arabia. Endometrial biopsies were collected from women who failed to achieve pregnancy after repeat IVF treatment from start of January 2013 till December...
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