Active clinical trials for "Polycystic Ovary Syndrome"

Both oxidative stress and Bisphenol A (BPA) had been associated with polycystic ovary syndrome (PCOS). BPA, one of endocrine-disrupting chemicals (EDCs), is an environmental estrogen used in the synthesis of plastics, is a "high-volume production" chemical with widespread human exposure. BPA was been reported in several female reproductive disturbance. However, the pathological pathway of BPA impact on female reproductive system had not been well-understood. Reactive oxygen species (ROS) have a role in the modulation of gamete quality and gamete interaction. Persistent and elevated generation of ROS leads to a disturbance of redox potential that in turn causes oxidative stress (OS). The first part of The investigators study is aim to evaluate the oxidative stress impact on the biochemical parameters in women with PCOS; the secondary part of the investigators study is to investigate the BPA on the clinical and biochemical of women with PCOS; finally, the investigators plan to test the hypothesis that BPA might increase oxidative stress and then elevated ROS in women with menstrual disturbance, furthermore, the role of oxidative stress and BPA impact on insulin resistance and metabolic disturbance will be also investigated. Study and control cases will be included. Serum total oxidant status (TOS), total antioxidant status (TAS), Bisphenol A (BPA), and clinical/biochemical parameters will be obtained for all cases. Oxidative stress and BPA will be evaluated with all clinical/biochemical parameters for all subjects.

The investigators aim to compare the levels of bone morphogenetic protein-4 and -7 (BMP-4 and 7) in blood, follicular fluid and ovarian organ culture supernatant obtained from healthy subjects and polycystic ovarian syndrome (PCOS) patients.

To the best of the investigators knowledge, exhaustive characterization of the low and high abundant proteins and glyco-proteins of the Follicular Fluid (FF) has not yet been achieved. Such an analysis may provide critical molecular data on the role of the FF in oocyte maturation and may identify specific changes in the FF proteome of patients with gynecologic problems, such as Polycystic Ovary Syndrome (PCOS). Specific Aims To perform a comprehensive analysis of normal human FF using sensitive mass spectrometry in combination with conventional approaches for proteomic evaluation and using HPLC and Western blot for glyco-proteomic analysis. Characterize differential proteomic and glyco-proteomic patterns of the FF in normal women compared to lean and obese women with PCOS. To supplement the differential proteomic and glyco-proteomic analysis with steroid hormone analysis in all FF samples.

Polycystic ovary syndrome (PCOS) is a very frequent endocrine disease of women in reproductive age, with an estimated prevalence of 5 to 10 % according to the studied population. In 2003 a committee of experts joined in Rotterdam under the auspice of the American Society for Reproductive Medicine and the European Society for Human Reproduction and Embryology, defined diagnostic criteria. It should include unless two of the following: menstrual irregularities; excess of male hormones (clinic or biochemical) and polycystic ovaries under ultrasound examination; giving rise to four subgroups or phenotypes: 1- Women with polycystic ovaries, hyperandrogenism and oligoamenorrhea . 2. Women with normal ovaries, hyperandrogenism and oligoamenorrhea. 3- Women with polycystic ovaries, oligoamenorrhea without hyperandrogenism. 4- Women with polycystic ovaries, hyperandrogenism with normal menses. PCOS shares components of Metabolic Syndrome for the high prevalence of insulin resistance (abdominal obesity, impaired glucose tolerance, type 2 diabetes, hypertension, endothelial dysfunction, impaired lipid profile and probably cardiovascular disease). All these findings lead us to assume that women with PCOS could have an increased risk of developing cardiovascular disease. Nevertheless it is premature to assume that every PCOS phenotype has the same cardiac and metabolic risk factors. So, it is important to evaluate the endocrine and metabolic characteristic in different phenotypes of PCOS to prevent the co morbidities that predispose to cardiovascular disease. And of course to avoid unnecessary measures in groups that could not show increased risk.

Hirsutism is the presence of terminal hairs in a male-like pattern in females, due to elevated male hormone levels. Females with hirsutism are often overweight and have metabolism disturbances as insulin resistance and impaired glucose tolerance. The previous studies showed that patients with hirsutism (especially them with polycystic ovarian syndrome (PCOS)) have an increased risk to develop type 2 diabetes mellitus on the background of insulin resistance / hyperinsulinemia: 30-35 % of females with PCOS had impaired glucose tolerance and 5-10 % of them diabetes. Hyperinsulinemia increases the risk to develop dyslipidemia and cardiovascular diseases. A previous study in our department who included 340 females with hirsutism (210 with idiopathic hirsutism and 134 with PCOS) showed that 6.6% of them had diabetes and 55% insulin resistance. There were only few long-term follow up studies of patients with hirsutism concerning their risk to develop diabetes. As far as we now, such studies on patients with idiopathic hirsutism are not available until now. Hirsutism is been treated with low dose oral contraceptives, which are suppressing androgen production. This treatment can also influence the risk to develop diabetes and atheromatosis. The previous studies showed that the low dose oral contraceptives had modest influence on the lipid profiles and carbohydrate metabolism in patients with hirsutism, but increased the risk to develop coronary disease. Aim To study and quantify, in patients with hirsutime, the risk to develop type 2 diabetes on the background of insulin resistance / decreased glucose tolerance and atheromatosis on the background of insulin resistance / hypercholesterolemia. To clarify the effect of P-pills on patients hair growth and metabolism.

Polycystic ovary syndrome (PCOS) is a complex, heterogeneous disorder, which produces in 5-20% reproductive age women. In this study, a nontargeted metabolomics approach based on ultra high-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry will be used to investigate serum metabolic characteristics of PCOS. PCOS women and healthy control will be divided into two distinct groups based on multivariate statistical analysis. The findings of this study will offer a new insight to understand the pathogenesis mechanism, and the discriminating metabolites may provide a prospect for PCOS diagnosis.

polycystic ovary syndrome is a common gynecological problem

To investigate the circulating concentrations of phoenixin and their associations with BMI, the concentrations of sex hormones including (LH), (FSH), (E2), (P4), (TT) and steroid hormones enzyme in PCOS patients. To detect the expression PNX and humanin in women with or without PCOS and to elucidate possible correlations with ovarian reserve and clinical outcomes after IVF-ICSI. To investigate relationship between PNX, humanin expression and PI3K/AKT/mTOR and autophagy pathway as a major signaling mechanism in PCOS for targeting new prognostic and therapeutic markers. The study investigates the correlation between oocyte maturity, fertilization, recent biomarkers and a variety of hormonal parameters in follicular fluid.

Women with PCOS comprise a majority of fertility clinic attendees. Unfortunately, a high failure rate following fertility treatment was observed especially in obese women due to implantation failure. The local study on PCOS women has shown significant changes in an endometrial tumor - regulatory genes but not focusing on the endometrial implantation failure. Many previous attempts using human chorionic gonadotrophin (HCG) infused embryo, gonadotrophin agonist therapy or progesterone support aiming to improve implantation failure in the assisted reproductive technique still unable to enhance pregnancy rate beyond 40% despite a higher' fertilization rate up to 95%. There is still a research gap on what makes obese PCOS women prone to coincides with implantation failure. Endometrial component related to the expression of growth factors play an integral role in establishing cellular context necessary for successful pregnancy. Thus, a new fundamental knowledge on endometrial specific heparin-binding epidermal growth factor expression in the obese PCOS women is vitally important, not only to predict implantation failure but a potential therapy to improve pregnancy outcome.

Association between serum anti-Mullerian hormone (AMH) level and prevalence of glucose intolerance and metabolic syndrome in women with polycystic ovary syndrome (PCOS)