Endocrine Abstracts

Patients with primary hyperparathyroidism (PHPT) are insulin resistant. The effect of PHPT on lipid levels and low-grade inflammation leves is unknown. The aim of our study was to estimate the cardiovascular risk profile in patients with PHPT. Methods: In patients with PHPT (N=19; age: 58.15±8.38 years; PTH 180.83±104.15 ng/l, calcium 2.97±0.19 mmol/l) insulin sensitivity (measured using euglycemic hyperinsulinemic clamp - M value), lipids (total choleste...

It was reported that patients with primary hyperparathyroidism (PHPT) are insulin resistant, and that surgical treatment may improve insulin sensitivity in this group of patients. The aim of our study was to evaluate the effect of surgical treatment on insulin sensitivity in patients with PHPT. Methods: In patients with PHPT (N=19; age: 58.15±8.38 years) insulin sensitivity was estimated using euglycemic hyperinsulinemic clamp (M value) before and 3 months after su...

It was shown that obesity and insulin resistance may influence ghrelin levels. Contraversial results were observed considering ghrelin levels in women with polycystic ovary syndrome (PCOS). The aim of our study was to investigate the basal ghrelin levels in obese patients with PCOS and to evaluate possible correlations between ghrelin levels, insulin resistance and, androgen levels. In 10 obese PCOS patients (BMI 32.50±1.57 kg/m2, age: 21.4±0.85 years) and...

Insulin resistance and/or hyperinsulinemia are risk factors for CVD. Plasma homocysteine is also important risk factor for the development of premature cardiovascular disease (CVD) in type 2 diabetes. The relationship between level of insulin and homocysteine in insulin resistant state is not clear. The aim of our study was to investigate whether plasma homocystein levels are changed by acute hyperinsulinemia and to associate the change of plasma homocysteine with the level of...

It is supposed a simillar dirnal change of TSH, free fatty acids (FFA) and leptin in humans. Hypothalamic-pituitary-thyroid axis (HPT) is suppressed during food deprivation while there is an elevation of FFA further influencing glucose metabolism. The aim of our study was to investigate whether leptin can act as a metabolic signal linking the adipose tissue metabolism and the HPT. We studied 13 women with polycystic ovary disease-PCOS (mean age: 26.6±1.83 years; BMI: 34...

Introduction: Secretory adrenal tumors sensitive to luteinizing hormone (LH) and/or human chorionic gonadotropin (hCG) are well documented in the literature. LH and hCG share a mutual LH/hCG receptor and a comparable physiological role.Objective: The aim of our study was to evaluate the response of adrenal steroids (cortisol, aldosterone and dehydroepiandrosterone sulphate (DHEAS)) to exogenous hCG stimulation in menopausal patients with adrenal incident...

Premature ovarian insufficiency (POI) is characterized by cessation of ovarian function before the age of 40. Variable clinical presentation often postpones the diagnosis. The aim of our study was to assess whether there is a typical menstrual cycles pattern in patients with POI. We have evaluated 101 women, age 36.7±5.78 y. FSH=78.81±37.43 IU/l, E2<50 pg/dl, with confirmed POI referred to our Clinic between 2014 and 2018. Menstrual cycles characteristics were de...

Introduction: It is presumed that hiccups are a vestigial reflex in mammals. They are rather common in healthy subjects. Persistent hiccups (lasting >48 h) are a serious clinical sign, and documented in a number of debilitating conditions. According to the available literature persistent hiccups in Addisonian crisis have been previously documented in only two patients.Case report: In July 2018, a 39 year old man checked into the ER complaining of nau...

Introduction: Multiple endocrine neoplasia syndrome type 1 (MEN1) associated thymic carcinoids (Th-NETs) are rare and have poor prognosis. Cushing syndrome (CS) caused by Th-NET in MEN1 syndrome is extremely rare.Case report: We report a case of a 55-year-old man with CS at presentation due to ectopic ACTH production in MEN1 syndrome. Thirty years ago, this patient had total gastric resection due to Zollinger-Ellison’s syndrome and extirpation of tw...

Introduction: Adiponectin and its receptors are expressed in human osteoblasts, suggesting that adiponectin may be a hormone linking bone and fat metabolism. In contrast to adiponectin anabolic effect on bone in vitro studies, clinical and animal studies suggest that adiponectin may have negative effects on bone by stimulating the receptor activator of nuclear factor-κB ligand (RANKL) pathway and inhibiting the production of the decoy receptor for RANKL and osteopr...