View clinical trials related to Infertility.
Filter by:Although the endometrium tissue has been traditionally considered free of bacteria, recent studies have documented the presence of an endometrial microbiome. In a pilot study conducted by our research team, the microorganisms present in the endometrium were analysed in samples of endometrial fluid (EF) using next generation sequencing (NGS).Consistent with previously published studies, in normal conditions the endometrium is mainly composed of different species of the genus Lactobacillus. It was further noted that the presence of other pathogenic bacteria such as Streptococcus, and/or Gardnerella may alter the endometrial microbiome and can disrupt the uterine environment, affecting implantation rates and pregnancy success. This project aims to validate the microbiome found in the endometrium of women of reproductive age and try to corroborate the relationship between the endometrial microbiome and the reproductive outcomes in patients undergoing assisted reproduction treatment (ART). The use of Endometrial Receptivity Analysis (ERA) tool, together with the analysis of the endometrial flora before the embryo transfer will allow to evaluate the impact of the presence of endometrial pathogens on implantation in receptive patients. Therefore, the focus of this project is the development and clinical validation of a non-invasive diagnosis tool to analyse the microbiota, adding the microbiome study to the ERA analysis.
Men with infertility and normal hormone levels have few options for fertility treatment. Previous research suggests that men with infertility may have low levels of the active form of Vitamin A, called retinoic acid, in their testes. In a pilot study of 20 men with low numbers of sperm (<10 million motile sperm), roughly half the men showed improvement in sperm production. Thus, we want to see if retinoic acid administration to men with azoospermia (no sperm present) can initiate sperm production.
In a prospective observational study at a university teaching hospital, blood flow indices and serum hormone levels were compared between spontaneous and stimulated cycles in the same group of 50 patients with unexplained delayed conception.
Infertility affects about 10% of all couples and is defined by a failure to achieve a clinical pregnancy within a year of regular unprotected sexual intercourse. Up to one third of these couples will not have an identifiable cause after routine investigation, id est idiopathic infertility. The current diagnosis of male infertility relies on the World Health Organization (WHO) 2010 criteria which focus on concentration, motility and morphology in comparison to cut-off values of a fertile population. Alas, the relevance of the conventional semen analysis for the choice of treatment and the predictive value for an infertile couple with idiopathic or mild male infertility embarking on medically assisted reproduction (MAR) remains questionable. In other words, there is a strong clinical need to distinguish fertile from infertile men through new sperm function testing and to be able to select both the patient population who will benefit from MAR as well as the type of treatment. Numerous studies utilizing different techniques for assessing sperm DNA fragmentation support the existence of a significant association between sperm DNA damage and pregnancy outcomes. In this prospective cohort study the investigators aim to study the role of sperm DNA fragmentation analysis in selecting the patient who will benefit from intra-uterine insemination (IUI) therapy since IUI is still considered the first step in MAR and is performed at a large scale in Belgium and worldwide.
The present study was designed to assess the responsiveness of the hypothalamic pituitary gonadal axis to kisspeptin administration with increasing age in men.
At present, the evaluation criterion of endometrial receptivity is controversial. The development of a molecular diagnostic tool, the endometrial receptivity array (ERA) for diagnosis of endometrial receptivity . But use of this test in patients with RIF has shown that the window of implantation (WOI) is displaced in only a quarter of these patients and use of a personalized embryo transfer (pET) on the day designated by ERA improves reproductive performance with higher cost .what is known to the others'population? The morphological changes observed on histology for each specific day after ovulation were described by Noyes and his colleagues in 1950 . An endometrial biopsy that shows a difference of more than 2 days between the histologic dating and actual day after ovulation is considered to be ''out of phase''. But such pET studies according to the Noyes criterion are lacking . The aim of this study is to explore the Personal frozen-thawed embryo transfer in unexplained RIF patients according to the blinded histological dating of endometrial biopsies .
The role of micronutrients in fertility has recently gained increased attention. In women who suffer from polycystic ovary syndrome (PCOS) and infertility, we aim to test the impact of a standardized, multinutrient supplementation on the course of PCOS-specific parameters namely anti-Mullerian hormone (AMH), testosterone, and androstenedione. A total of 60 infertile women with PCOS, previously untreated, will be randomized to receive either a combined standardized multinutrient supplementation (containing folic acid, selenium, vitamin E, catechins, glycyrrhizin, coenzyme Q10 and omega-3-fatty acids; study group) or folic acid alone (control group) in a double-blinded, randomized manner. These study medications will be provided for 3 months and pre- to posttreatment levels of AMH, testosterone, and AMH will be analysed. The study will be performed at the Clinical Division of Gynecologic Endocrinology and Reproductive Medicine of the Medical University of Vienna.
Between March 2016 and March 2017, we performed a large retrospective, non-interventional, single-center cohort study and measured 25(OH)D3 plasma levels prior to ovarian stimulation in couples who underwent IVF/ICSI.And we analysed the correlation of vitamin D status and reproductive capacity .
The purpose of this study is to determine whether Medroxyprogesterone Acetate (MPA) administration in follicular phase prevents premature luteinization with equal efficiency as GnRH antagonists and otains similar clinical results in oocyte donation.
The purpose of study is to assess the efficacy of add-on estrogen pretreatment in GnRH antagonist protocol on oocyte retrieval as compared with GnRH antagonist protocol for patients with poor ovarian response Add-on estrogen pretreatment protocol is superior to none pretreatment GnRH antagonist protocol for the number of oocytes retrieval