View clinical trials related to Polycystic Ovary Syndrome.
Filter by:The study aims to evaluate whether the combination of a product based on D-chiro-inositol and the ketogenic diet can improve the metabolic/endocrine picture of overweight/obese women with PCOS, with insulin resistance, in a shorter time than the ketogenic diet alone
The purpose of the study is to understand the effect of Nicotinamide mononucleotide (NMN) on patients with polycystic ovary syndrome.
The purpose of this study is to investigating the effect of Umbilical Cord Mesenchymal Stem Cell (UC-MSCs) and secretomes to insulin resistance in Polycystic Ovary Syndrome (PCOS) patients. This study has 4 arms namely UC-MSCs treatment, secretomes treatment, UC-MSCs and secretomes treatment, and control.
Androgen excess is the cardinal biochemical feature of polycystic ovary syndrome (PCOS). Serum testosterone correlates with insulin resistance in PCOS, however, there is an urgent need to improve our understanding of the association between androgens and the risk of type 2 diabetes. 11-oxygenated steroids are the predominant androgens in PCOS and correlate closely with markers of insulin resistance. The bioactive 11-oxygenated androgen 11-ketotestosterone (11KT) binds and activates the androgen receptor with equal affinity to testosterone, yet nothing is known about its impact on metabolism or glucose homeostasis Crucially, there are no data linking androgen excess with muscle glucose metabolism and the differential contribution of 11-oxygenated androgens to diabetes risk through these processes remains unknown. The investigators hypothesise the following: 1. Oral androgen exposure in women with PCOS results in distinct changes in tissue-specific insulin sensitivity and muscle energy biogenesis 2. 11-oxygenated androgen exposure exerts differential changes on the above parameters in comparison to classic androgen exposure The study has the following aims: 1. To examine the impact of oral androgen exposure on skeletal muscle insulin sensitivity and glucose disposal in women with PCOS. 2. To delineate the impact of androgen exposure on muscle mitochondrial function ex vivo in women with PCOS 3. To compare the differential impact of 11-oxygenated androgen compared to classic androgens on glucose disposal and muscle mitochondrial function The two arms will run in parallel and all participants will undergo identical investigations before and after 7 days of either DHEA or 11KA4. Investigations will include baseline arthrometric measurements muscle biopsy, two-step hyperinsulinaemic euglycaemic clamp, breath sampling. This interventional metabolic phenotyping study will probe the role of classic and 11-oxygenated androgens in metabolic dysfunction in PCOS using gold-standard in vivo metabolic phenotyping techniques. Delineating the distinct contribution of 11-oxygenated androgens, through effects on skeletal muscle biology, to the risk of T2DM is an important step in the process of determining risk of type 2 diabetes in this vulnerable cohort.
Polycystic ovary syndrome (PCOS) affects 10% of all women and usually presents with irregular menstrual periods and difficulties conceiving. It is also a lifelong metabolic disorder and affected women have an increased risk of type 2 diabetes, high blood pressure, and heart disease. Increased blood levels of male hormones, also termed androgens, are found in most PCOS patients. Androgen excess appears to impair the ability of the body to respond to the sugar-regulating hormone insulin (also termed 'insulin resistance'). Androgens circulating in the blood in women with PCOS are comprised of classic androgens (for example testosterone), and the less-characterised 11-oxygenated androgen subclass that arises from the adrenal glands. The investigators have recently demonstrated that 11-oxygenated androgens make up the majority of circulating androgens in women with PCOS. In preliminary studies using minimally invasive adipose tissue sampling, the investigators have found that the fat tissue of women with PCOS overproduces classic androgens. This can lead directly to disturbances in the ability of fat cells to store fat effectively (lipotoxicity), resulting in insulin resistance and the consequent risk of liver damage. However, there are no published studies on in vivo androgen concentrations in the adipose tissue of women with PCOS. Furthermore, the scientific community do not have any information on whether adipose concentrations of 11-oxygenated androgens are also increased in women with PCOS. Research Questions The investigators aim to examine the metabolism of classic and 11-oxygenated androgens in detail in both circulations and in the adipose tissue of women with PCOS. The investigators will examine how precursor variants of both 11-oxygenated and classic androgens, which are converted by the body into active hormones, are broken down (metabolised) within the adipose tissue of women with PCOS. The investigators will also investigate if the 11-oxygenated androgens have a differential impact on metabolic function as compared to classic androgens. This will give important insights into the adipose tissue metabolome in women with PCOS, and how locally generated androgens impact on adipose tissue function and metabolic risk.
The study aims to compare the efficacy of Empagliflozin or Linagliptin as an alternative to Metformin for treatment of non-diabetic patients with polycystic ovary syndrome (PCOS).
This is a prospective observational study that aims to identify the underlying mechanisms of PolyCystic Ovarian Syndrome (PCOS) and associated comorbidities such as subfertility, miscarriage; and pregnancy complications such as gestational diabetes mellitus and Intrahepatic cholestasis of pregnancy (ICP). This will be achieved through cross-sectional observation and laboratory analyses.
Insulin resistance (IR) is an important pathological feature of polycystic ovary syndrome (PCOS), with an incidence rate of up to 85%, which seriously affects the patient's fertility, quality of life, and offspring health, but the mechanism is unknown. The adaptor protein LNK is closely related to metabolic diseases. Our exome sequencing has found that the mutation rate of LNK gene in patients with PCOS and IR is high. Studies have found that LNK can affect adipose inflammation and impair glucose tolerance. Whether LNK is related to fat metabolism is worth further study. Our previous research found that: LNK expression was significantly increased in adipose tissue of patients with PCOS and IR. Knockout of LNK in PCOS IR model mice can reduce serum triglycerides, free fatty acids, high-sensitivity C-reactive protein levels and reduce fatty liver occurrence, which indicates that LNK has a mitigating effect on IR. Mechanism studies have shown that LNK knockout can upregulate the glucose transporter Glut4, also LNK and insulin receptor substrate IRS-1 can form protein complexes. Based on the above research basis, we propose the following scientific hypothesis: LNK in adipose tissue can regulate insulin signaling pathway by binding to IRS-1, downregulate Glut4, and participate in PCOS IR occurrence. This project intends to clarify the specific mechanism by which LNK regulates glucose transport and participate in IR in combination with clinical specimens, animal models and cell experiments, and provide scientific basis for LNK as a potential therapeutic target for PCOS IR.
Polycystic ovarian syndrome (PCOS) is associated with metabolic symptoms such as hyperinsulinemia. Time-restricted eating may reduce serum insulin and improve insulin resistance in patients with PCOS. Currently, there are few studies investigating time-restricted eating in patients with PCOS. The investigators plan to test the feasibility of time-restricted eating in the management of PCOS by means of a real-world clinical intervention. The investigators will determine if an 18:6 eating protocol reduces insulin levels by means of a randomised controlled crossover trial.
The investigators collected clinical data and serum samples of patients with polycystic ovary syndrome in this study, used statistical software such as SPSS for data analysis, and used experimental techniques such as ELISA to detect serum samples, aiming to explore the relationship between the body anthropometry, glucose and lipid metabolism, gonadal hormones and body fat distribution in patients with polycystic ovary syndrome and to discovery new biomarkers and promote the realization of more accurate personalized medicine.