Active clinical trials for "Abortion, Habitual"

50%-60% of the known causes of recurrent pregnancy loss(RPL) are associated with embryonic aneuploidy, such that preimplantation genetic screening (PGS) on embryos acquired by assisted reproductive treatment should improve the rate of pregnancy and live birth in those patients. In dispute though the clinical application of PGS has been, a series of studies show that the new generation of PGS(PGS 2.0), based on blastocyst biopsy followed by whole genome analysis, has significantly improved the clinical outcome of IVF treatment. At present, there is still a need for the evidence of the use of PGS 2.0 in RPL patients, who may benefit from this emerging technology considering the prevalence of genetic abnormalities and the number of transferable embryos in this population. An earlier single center RCT conducted by our IVF center displayed higher implantation rate, clinical pregnancy rate and ongoing pregnancy rate calculated by per embryo transfer(ET) cycle in IVF/ICSI+PGS group compared with IVF/ICSI group. This multi-center prospective randomized clinical trial is to provide more data to determine whether the clinical outcomes are significantly improved per treatment cycle such that provide evidence for the application of PGS in RPL patients. Besides, risk factors of PGS outcome are to be analyzed from multi-center data to build a model for prediction of the possible outcomes of PGS and direction of the clinical choice.

There is increasing amount of evidence which suggests that miscarriage is related to a primary endometrial problem. Recent cochrane meta-analysis (March 2015) has proven that endometrial scratch improves live birth in women who underwent IVF. The aim of the study is to find out if scratch of the endometrium prevents recurrent miscarriage.

The purpose of this study is to determine whether Cyclosporin A (CsA) - an immunosuppressant drug - in early pregnancy will reduce the risk of miscarriage in women who had a history of unexplained recurrent miscarriages, as compared with that treated with Dydrogesterone-an active comparator. The hypothesis is based on the evidence found in vitro and in vivo experiments that CsA can induce maternal-fetal tolerance so that it may reduce the risk of miscarriage.

Clinical Investigation Protocol for a study designed to determine the equivalence of the Monica AN24 monitor to Philips 50XM for fetal heart rate (FHR) and uterine contraction (UC) monitoring during labor. The study will be carried out on subjects in the first and second stages of labor.

To compare the abv3-integrin expression in endometrium tissue among RIF women between the GnRH analogue with Aromatase Inhibitor (Group A) , GnRH analogue with progesterone (Group B) and GnRH analogue alone as control group (Group C)

The present study is based on hypotheses that some as yet unknown genetic factors may result in recurrent miscarriage (RM). Consequently, the main aim of this study was to gain new information about the underlying genetic causes of RM in the Egyptian population and to investigate the expression of ERK and p-ERK protein in human placenta and their corresponding tissue, to assess the significance of MAPK signal pathway in progression of recurrent miscarriage and PI3K-Akt Pathway.

Platelet indices might be a marker for platelet activation, and thus could predict thrombosis. This might be the cause in some cases of recurrent miscarriage. This study aims to evaluate the use of platelet indices -as a simple test- to predict recurrent miscarriage.

Introduction: Elevated levels of androgen and insulin-resistant have been implicated in recurrent miscarriage in women with PCOS. Published data are scarce on androgen level and cervical length of women with and without PCOS and a history of miscarriage. Aim: The aim of this study was to investigate the levels of testosterone (TT), Sex Hormone Binding Globulin (SHBG), Dehyroepiandrostenedione (DHEA) and cervical length in Egyptian women with and without history PCOS and history of RM during pregnancy . Method: Pregnant women with (n=38) and without (n=40) PCOS and history of recurrent miscarriages were recruited from the Obstetrics Department, Alagoza Hospital, Cairo, Egypt. Healthy pregnant women without PCOS and history of RM (n=40, HC) were also recruited. TT, SHBG,DHEA and Sex Hormone Binding Globulin (SHBG) level and cervical length were assessed at first, second and the third trimester or at the start of miscarriage

The investigators have found that NLRP7 was upregulated and nuclear translocated in an in vitro model of decidualization. Knock-down or overexpression of NLRP7 reduced or enhanced the expression of decidual marker IGFBP-1. NLRP7 was also found to promote progesterone receptor (PR) activity. So, the investigators hypothesized that NLRP7 may regulate progesterone-induced decidualization of human endometrial stromal cells. Part I is to explore how NLRP7 is induced during the decidualization. According to the luciferase activities of NLRP7 promoter luciferase reporter systems, the region from -100 to +37 or from -1200 to -100 had positive or negative regulatory elements, respectively, in the in vitro decidualization. Part II is to explore how NLRP7 contributes the decidualization of endometrial stromal cells. By immunoprecipitations of NLRP7 or PR, the investigators found NLRP7 might involve in the transcriptional complex of PR in the in vitro decidualization. The NLRP7 interacting protein in the co-immunoprecipitations the investigatorsre analyzed by LC/MS-MS. Part III is to explore the effects of NLRP7 mutations on in vitro decidualization and macrophage differentiation. Comparing to RFP control, the investigators found wild-type NLRP7 enhanced but NLRP7 mutants reduced IGFBP-1 expression in the in vitro decidualization. In the M1 macrophage differentiation of THP-1, wild-type and mutant NLRP7 reduced IL-1β expression compared to the RFP control. Part IV is to explore a role of MPA in macrophage differentiation. MPA drives THP-1 cells a M2-like macrophage differentiation toward a phenotype of decidual macrophages, which promoted in vitro decidualization and trophoblastic invasion, but tolerated TLR ligands stimulations. In conclusion, NLRP7 contributes in vitro decidualization of endometrial stromal cells; NLRP7 mutation may impede in vitro decidualization; NLRP7 may suppress IL-1 expression in M1 macrophage differentiation; MPA drives M2 macrophage differentiation toward a phenotype of decidual macrophage.

The involvement of the immune system in the process of implantation and its modulation as a therapeutic line in these alterations, failure of implantation and repetition abortion are controversial and make it necessary to conduct clinical studies properly led and with a study population chosen by strict criteria in order to better understand the involvement of the different innate and adaptive immune mechanisms in the field of reproductive medicine and especially in clinically expressed failures recurrent implantation failure and recurrent abortions.