View clinical trials related to Polycystic Ovary Syndrome.
Filter by:Polycystic Ovary Syndrome (PCOS) affects 5 to 10% of women of reproductive age. It is characterized by a cluster of hyperandrogenism, hyperinsulinemia, menstrual dysfunction, hirsutism and infertility. Although the pathogenesis of PCOS is unknown, accumulating evidence suggests that the dysregulation of some angiogenic factors, such as transforming growth factor-β (TGF-β) and vascular endothelial growth factor (VEGF), may be implicated. TGF-βs and VEGF exert a diverse range of biological functions regulating cell proliferation, angiogenesis, fibroblast activation and tissue fibrosis. PCOS ovaries show all the hallmarks of TGF-β and VEGF upregulation, including increased collagen deposition in ovarian stroma and theca, supported by increased vascularity. Consistent with this, The investigators recently showed that TGF-β1 is increased in serum of PCOS women while its circulating receptor soluble endoglin (sENG) is decreased, resulting in greater TGF-β1 bioavailability. Furthermore, it has been shown that women with PCOS have increased VEGF levels in the serum and/or follicular fluid. PCOS patients also have decreased vitamin D levels, and vitamin D treatment has been previously shown to improve various clinical parameters in PCOS women, including glucose intolerance, hypertension and androgen levels. Interestingly, vitamin D has been shown to decrease TGF-β1 and VEGF levels in several diseases, including myelofibrosis and various human cancer cells. Therefore, the investigators hypothesize that vitamin D treatment of PCOS women will result in a decrease of serum TGF-β1 levels and/or VEGF levels concomitant with improvement in clinical disease parameters. In addition, the investigators hypothesize that improvement in clinical disease parameters will correlate with changes in serum VEGF levels and TGF-β1 bioavailability. Our aim in the present study is to investigate the effects of vitamin D treatment on serum VEGF and TGF-β1/sENG levels in PCOS women, and assess whether changes in these angiogenic factors following vitamin D treatment correlate with clinical disease in these women. For this end, PCOS patients who are vitamin D-deficient will be treated with vitamin D and their serum levels of VEGF, TGF-β1 and its sENG receptor will be measured before and after treatment. In addition, clinical disease parameters will be recorded before and 4 months after treatment, including serum glucose and insulin levels, serum androgen levels, and blood pressure. The proposed study aims to identify a putative link between vitamin D, VEGF, and TGF-β1 in the context of PCOS, and provide a novel molecular explanation for the beneficial clinical effects of vitamin D on PCOS patients.
The purpose of this study is to compare the efficacy of in vitro fertilization (IVF) versus gonadotropin therapy in infertile women having clomiphene citrate (CC) resistant polycystic ovarian syndrome (PCOS).
The purpose of this study is to compare the efficacy of in vitro fertilization (IVF) versus laparoscopic ovarian drilling (LOD) in infertile women having clomiphene citrate (CC) resistant polycystic ovarian syndrome (PCOS).
Compare the efficacy between intensive lifestyle intervention and drugs (GLP-1 Receptor Agonists, metformin and acarbose) for PCOS patients with early onset diabetes in their metabolic and reproductive abnormalities treatment; clear the treatment effect and mechanism of intensive lifestyle intervention to PCOS.
The purpose of this study is to evaluate the effect of administration of low dose of human chorionic gonadotropin (HCG) after use of clomiphene citrate (CC) for induction of ovulation in infertile women having CC resistant polycystic ovarian syndrome (PCOS).
Predictive equations are the main clinical tool for determining resting energy expenditure (REE). Thus, it is important to investigate the accuracy and agreement of these equations in different populations and context of diseases. The purpose of this study is to investigate the accuracy and agreement of predictive equations of REE in overweight women with polycystic ovary syndrome (PCOS). The REE of all participants was measured (mREE) by means of indirect calorimetry and predicted (pREE) through ten equations basing on the anthropometric parameters (Harris & Benedict, WHO/FAO/UNU including weight, WHO/FAO/UNU including weight and height, Owen, Mifflin-St. Jeor, Institute of Medicine, Ireton-Jones, Müeller, De Luis and Lazzer).
The aim of this project is to investigate the pathophysiology of PCOS in regards to the metabolic profile including defects in insulin sensitivity in skeletal muscle and adipose tissue, and to investigate the effects of exercise training on these parameters.
The aim is to investigate whether 16 weeks of high intensity interval training, followed by 36 weeks of home-based exercise, will improve menstrual frequency in women with Polycystic Ovary Syndrome (PCOS) compared with a non-exercising control group.
The purpose of this study is to investigate whether higher insulin resistance in young women with Polycystic ovary syndrome (PCOS) is associated with reduced cerebral metabolic rate of glucose (CMRglu). Brain volumes using magnetic resonance imaging (MRI) and quantitative cerebral glucose uptake using dynamic positron emission tomography (PET) were obtained.
Polycystic ovary syndrome (PCOS) is one of the most common endocrine disorders occurring in women of reproductive age. PCOS is considered a syndrome of ovarian dysfunction that is characterized by the heterogeneous clinical manifestation of infrequent or absent menstrual cycles, hyperandrogenism, and polycystic ovarian morphology. An important ultrasound parameter is the ratio stroma/ovary, the ratio of the volume, evaluated in two-dimensional ultrasound, of the stroma, that secrete androgen, and the ovary. It has been shown that when this ratio is higher than a third the levels of circulating androgens and high. Aim of the present study is to assess whether this ratio, determined with three-dimensional ultrasound, is correlated to the increase of androgens.