Endocrine Abstracts

Introduction: Polycystic ovary syndrome (PCOS) is characterized by menstrual disorders, hyperandrogenism and polycystic ovaries on ultrasonography. This hormonal disorder is also strongly associated with insulin resistance. The diagnosis of PCOS can be established after the exclusion of other causes of mentioned symptoms, such as non-classic congenital adrenal hyperplasia (NCAH). To date, several studies suggest the increased serum concentration of 17-hydroxyprogesterone (17-O...

The accumulated data underline the role of betatrophin in glucose homeostasis. Polycystic ovary syndrome (PCOS) is characterized by insulin resistance and high risk of developing prediabetes and diabetes. The aim of our study was to investigate the relationship of serum betatrophin concentrations with indirect indices of insulin resistance and insulin secretion in women with PCOS, comparing to the control group. The study group comprised 43 women with PCOS and 16 controls matc...

Objective: It has been shown that women with PCOS as well as with autoimmune thyroiditis (AIT), are characterized by increased incidence of infertility. Serum anti-Müllerian hormone (AMH), which reflects ovarian reserve, is elevated in PCOS women and is decreased in women with AIT. The Rotterdam criteria recognize four clinical PCOS phenotypes,i.e.,phenotype Acharacterized by clinical and/or biochemical hyperandrogenism (HA), menstrual dysfunction (oligo/amenorrhea) (Olig...

Introduction: A high prevalence of polycystic ovary syndrome (PCOS) and hyperandrogenism has been described in adult women with type 1 diabetes mellitus (T1DM). Anti-Müllerian hormone (AMH) is secreted by granulosa cells of antral ovarian follicles and its plasma concentration is correlated with the number of small antral follicles. AMH levels are increased in women with PCOS and higher plasma concentration has been observed in prepubertal girls with T1DM. The aim of this...

Polycystic ovary syndrome (PCOS) is heterogeneous disorder, where insulin resistance might be involved in the development of endocrine and metabolic abnormalities. Insulin resistance is associated with the so-called metabolic inflexibility i.e. an impaired switch from lipid to glucose in response to insulin. The aim of the present study was to estimate glucose and lipid oxidation, metabolic flexibility and non-oxidative glucose metabolism in lean and obese PCOS patients.<p...

Introduction: Polycystic ovary syndrome (PCOS) is associated with an increased risk of abdominal obesity, what is regulated by numerous genetic, epigenetic, and environmental factors. MicroRNAs (miRNAs) are known regulators of gene expression, involved in the development of metabolic disturbances. Dual-energy X-ray absorptiometry (DXA) is an accurate method of body composition analysis. The aim of the present study was to investigate the association between circulating miRNAs,...

Introduction: Type B insulin resistance syndrome is an autoimmune disorder characterized by the production of autoantibodies against the insulin receptor. It leads to glucose metabolism disorders, extreme insulin resistance, hyperandrogenism and is associated with other features of autoimmunity.Case report: A 27-year-old man, with a 2-years history of psoriasis, was admitted to our Department because of loss of weight (20 kg in 1 year) and fatigue. He al...

Polycystic ovary syndrome (PCOS) and type 1 diabetes (T1DM) are accompanied by increased risk of atherosclerosis. A higher prevalence of PCOS in T1DM patients has been reported. Brachial artery flow-mediated dilatation (FMD) and intima media thickness of common carotid artery (IMT) are used to detect an early endothelial dysfunction.The aim of our study was to examine IMT and FMD in T1DM women with PCOS. We also estimated the relation of IMT and FMD to c...

Introduction: The prevalence of polycystic ovary syndrome (PCOS) is increased in women with type 1 diabetes (T1DM) in comparison to the general population. It has been suggested that exogenous insulin administered to T1DM women in supraphysiological doses could act as co-gonadotropin and lead to disturbances observed in PCOS.Aim: The aim of this study was to evaluate the phenotypic characteristic and differences between diabetic women with PCOS (T1DM+PCO...

Introduction: Brain derived neurotrophic factor (BDNF) is a neurotrophin which plays a role in neuronal growth and differentiation. Decreased level of BDNF is supposed to play a role in the pathogenesis of the neurodegenerative diseases. Recent data indicate that BDNF could be also involved in angiogenesis. Several lines of evidence support the role of BDNF in glucose metabolism. The decreased level of BDNF are observed in obesity and type 2 diabetes mellitus. Polycystic ovary...