Endocrine Abstracts

In the ovary, the G protein-coupled estrogen receptor (GPER) forms heteromeric complexes with the follicle-stimulating hormone receptor (FSHR), reprogramming FSH-induced signals and determining the follicular fate. Based on the structural similarity, we evaluated whether GPER interacts with the luteinizing hormone (LH)/choriogonadotropin (hCG) receptor (LHCGR) modulating gonadotropin-dependent signals. LHCGR-GPER heteromers were evaluated in transiently transfected HEK293 cell...

Thyroid cancer is the most common type of endocrine tumor and reaches the peak of incidence between the age of twenty and fifty years. It has 4-fold higher prevalence in females than males, suggesting that estrogens and their receptors could be involved in thyroid cancer pathogenesis. Previous studies demonstrated allosteric interference operated by G protein-coupled estrogen receptor (GPER) to molecules structurally similar to the thyroid-stimulating hormone (TSH) receptor (T...

Androgens are sex steroid hormones fundamental for human reproduction. In males, they are produced upon luteinizing hormone (LH) action through its specific receptor (LHCGR) expressed in Leydig cells, supporting spermatogenesis. The human chorionic gonadotropin (hCG), acting on the same receptor but not expressed in men, is administered to improve testosterone synthesis in specific pathological contexts, such as hypogonadotropic hypogonadism and cryptorchidism. In vitro</e...

Background: ACROSTUDY is an open-label, non-interventional post-authorization safety study that began in 2004 to evaluate safety in at least 1000 acromegaly patients treated with the GH receptor antagonist pegvisomant (PEGV). This commitment was fulfilled in Jan 2013. ACROSTUDY was later amended to enroll an additional 110 patients that were naïve/semi-naive to PEGV treatment. Semi-naïve patients are defined as not having received PEGV therapy for at least 6 months p...

Previous studies demonstrated that n-3 polyunsaturated fatty acids (PUFA) reduce insulin resistance and non-alcoholic fatty liver disease (NAFLD). However, we previously reported that transgenic expression of the fat-1 n-3 desaturase, inducing the endogenous production of n-3 PUFA, improved insulin resistance but not hepatic steatosis in a mouse model of obesity. Thus, we compared the effects of increasing n-3 PUFA levels through oral or endogenous approaches in diet-...

Background: Diabetes and hypertension are among leading causes of premature adult deaths in India. Innovative approaches such as electronic clinical decision support systems (DSS) could play major role in improving quality and access to diabetes and hypertension care at primary care settings.Objective: The main objective of this study is to develop an innovative tablet-computer based DSS namely “m-WELLCARE”, and other essential support healthca...

Thyroid nodules are very common and benign in most cases. Thus, malignancy detection avoiding overtreatment is a challenge. Nodule evaluation mainly supports on US and fine needle aspiration cytology (FNAC). The Bethesda classification (BC) for reporting thyroid cytopathology is now currently used for the interpretation of results but it does not enable classifying 30% of samples.The objective was to identify, by transcriptome analysis, a molecular signa...

Adrenocortical carcinoma (ACC) is a rare malignancy, but accounts for up to 11% of adrenal masses investigated in referral centres. Diagnosis remains a challenge. Up to two thirds are biochemically inactive, resulting from de facto enzyme deficiencies in the steroid hormone biosynthetic pathways, as shown by urine steroid profiling by gas chromatography-mass spectrometry. Increased metabolites of pathway intermediates in ACC discriminate it from benign adrenal lesions...

Many patients with primary adrenal insufficiency (Addison’s disease) take extra doses of glucocorticoids before or during stressful events, but benefit has not been demonstrated. We aimed to test the effect of an extra dose of glucocorticoids on cardiorespiratory, hormonal and metabolic parameters in response to physical activity in a randomised placebo-controlled, 2-weeks cross-over, clinical trial (clinicaltrials.gov NTC01847690). Ten women with Addison’s disease a...

Background: Conventional glucocorticoid replacement therapy in patients with Addison’s disease (AD) is unphysiological with possible adverse effects on mortality, morbidity and quality of life. Physiological amounts of glucocorticoids are required for normal GH production and release and a chronically raised cortisol level, suppresses the secretion of GH with possible metabolic and cardiovascular consequences. The diurnal cortisol profile can likely be restored by continu...