Active clinical trials for "Infertility"

Approximately 15 percent of couples experience infertility, yet no abnormalities can be detected in the man or the woman. In a number of couples, their embryos unexpectedly slow down growth or stop growth completely. Some of these situations may be genetically determined. For instance, a portion of cases may be caused by poor egg quality related to genetic or functional deficiencies in heretofore unidentified human maternal effect genes. A model has been developed of such unexplained fertility by creating a mouse line lacking a critical maternal effect gene. (Maternal effect genes produce mRNA or proteins that accumulate in the egg and are required for normal early embryonic development.) This pilot project will test the hypothesis that a similar defect may be a cause of human infertility. Thirty cubic centimeters of blood will be collected from 40 women who have a clinical history consistent with a defective maternal effect gene. DNA from these blood cells will be examined and stored. Some of the blood cells will be treated so that they can be frozen and grown in the laboratory to produce more DNA in the future. If certain mutations are not found, that means that the prevalence of such mutations is less than 10 percent, and investigators may initiate another study with 100 women. If a common mutation is found in at least four patients, the investigators will seek to collect DNA from 150 normal fertile control women for comparison. This project is purely investigational; therefore, findings will not be shared with participants. ...

This study will explore the decision-making experiences of women who are currently pregnant following a period of infertility on whether or not to undergo an invasive prenatal test (IPT) procedure, such as amniocentesis or chorionic villus sampling. Women who become pregnant after infertility often experience heightened anxiety regarding the outcome of the pregnancy. When choosing whether or not to have IPT they are faced with a complex decision, set in the unique context of a pregnancy that they often perceive as exceptionally precarious. Women who are pregnant with their first child after a period of infertility and have made a decision regarding whether or not to undergo IPT may be eligible for this study. Participants complete an online password-protected questionnaire that measures infertility and decision-making variables and explores women's perceptions of the impact of infertility on their IPT decision-making process. The questionnaire covers the following areas: Subject's demographic information, such as age, marital status, number of children, education, race, ethnicity Subject's infertility history Subject's thoughts and feelings about infertility Subject's thoughts and concerns about other people's (e.g., husband, doctor, other infertile women) opinions about IPT Subject's decision about whether or not to have IPT and her feelings regarding the decision The effect of subject's infertility history on her decision to have or not have IPT

The goal of this study is to determine whether there is a correlation between the levels of Vitamin E in sperm and sperm DNA fragmentation. Previous research has shown that damage to the DNA in sperm may cause infertility or increase the chances of miscarriage, if the damage is extensive (eg. present in the overwhelming majority of sperm). Some studies suggest that DNA damage can be caused by oxidative stress. Antioxidants, such as Vitamin E, which are present in some foods, can prevent damage to cells from "free radicals", which are naturally present by-products of metabolism. We ask whether there is a correlation between sperm DNA damage and Vitamin E

This study aimed to assess the correlation between HCG levels after ovulation triggering and ICSI outcomes, affected by HCG formulation and dose

The purpose of this study is to investigate whether an association exists between serum vitamin D levels and IVF treatment outcome

Embryo adhesion and placentation depend on tissue plasminogen activator (tPA)-mediated activation of brain-derived neurotrophic factor, vascular endothelial growth factor and other growth factors, formation of hemidesmosomes, and degradation of extracellular matrix and basement membrane, either directly or by activating matrix metalloproteinases. Since glucose and insulin stimulate release of a major tPA inhibitor by endothelial cells - plasminogen activator inhibitor (PAI)-1 - the investigators hypothesized that lifestyle interventions proven effective in maintaining glucose and insulin levels within the normal range would increase the take home baby rate in women undergoing assisted reproduction.

The purpose of this study is to determine whether oocyte and embryo mechanical properties measured during in vitro fertilization can predict embryo development outcomes and clinical pregnancy.

In spite of all progress realized in the field of assisted reproduction the pregnancy rate by In vitro fertilization (IVF) in France, across indications, is only 23% after IVF cycle. Different causes may account for these failures and that, during all stages of pregnancy. Recent studies have investigated an essential step in fecundation : uterine receptivity. Some teams have shown that a lot of immunological factors would have very significant in this step, by them possible expression in this process. Other studies looked at genes modulation, essential to implantation, with endometrium manipulation, simple, such as endometrial biopsy (EB). The last findings published on this subject, but after 2 IVF failures, are most encouraging because the pregnancy rate for these teams after just endometrial local injury (EB after 2 IVF failures) is well above their usual pregnancy rate. Some teams have focused on immunoassay of endometrial biopsy, in order to profile uterine receptivity and suggest with results, suitable treatment for each patient (ongoing study). EB is quick, easy, make in a simple consultation and with a low cost, contrary to immunological study, which depend of ultra-specialized laboratories and therefore with an important cost.

Prevalence of anti-H.pylori IgG in serum of women with unexplained infertility and comparing that with it's prevalence in fertile women.

The investigators propose to perform a clinical randomized trial to evaluate the effect of a frozen-thawed embryo transfer and a fresh embryo transfer on pregnancy and implantation rates; with the added benefit of a blastocyst biopsy and whole chromosome analysis by Next Generation Sequencing (NGS).