Endocrine Abstracts

Hypoglycaemia stimulation serves as a model of physiological function of adrenal action during the stress reaction. The study aimed to describe the differences of steroid response between hypoglycemia and various doses of Synacthen (as ACTH stimulation alone). The goal of the study was to investigate the physiology of adrenal response. Twenty four steroids were measured in plasma using gas chromatography - mass spectrometry after stimulation of 1 μg, 10 μg and 250 &#...

The adrenal androgens dehydroepiandrosterone, dehydroepiandrosterone sulfate, androstenedione, 5-androstenediol and 11β-hydroxy-androstenedione have a wide spectrum of important physiological effects. Aim of our study was to find differences in reaction of the C19 Δ5-steroids between healthy women and patients with adrenal insufficiency in various doses of Synacthen (1 ug, 10 ug and 250 ug). Our study involved seven healthy women and six premenopausal females (BMI an...

Objective: Smoking during pregnancy could have impact on steroidogenesis, with more marked changes in smokers carrying boys as well as in their newborns. The aim of study was compared steroid hormones between non-smokers, ex-smokers, which stop smoking in the beginning of pregnancy, and active smokers.Method: We focused on changes in steroidogenesis in the blood of mothers in their 37th week of pregnancy and in mixed cord blood from their newb...

As genetic and environmental components contribute to the PCOS expression, we compared levels of endocrine disruptors, steroid hormones, cytokines, and metabolic parameters in twenty healthy, nine normal-weight PCOS women, and ten obese PCOS women. Steroid hormones, bisphenols (BPA, BPS, BPF, BPAF) and parabens (methyl-, ethyl-, propyl-, butyl-, benzyl-parabens) were measured by liquid chromatography-tandem mass spectrometry. Differences between the groups were assessed using ...

Context: The increase in bone mineral content (BMC) and density (BMD) measured by dual-energy X-ray absorptiometry (DXA) in obese children may not sustain the mechanical load associated with weight, and the factors influencing bone mineralization are not well known.Objective: We described bone mineralization in overweight- obese (ow/ob) and lean (non-ow/non-ob) boys in relation to body composition.Methods: Cross-sectional study in ...

Context: Mosaicism is a feature of several inherited tumor syndromes but is rarely systematically looked for in routine. MEN1 is an autosomal dominant hereditary syndrome characterized by several endocrine tumors affecting parathyroids, pancreas, and anterior pituitary most of the time, due to inactivating mutations in the MEN1 gene. Few cases of mosaicism in Multiple Endocrine Neoplasia type 1 (MEN1) have been described. MEN1 mosaicism is probably under-diag...

Background: Cushing’s syndrome, caused by an excess of circulating glucocorticoids, is associated with high morbidity and presents high inter-individual variability. The earlier the diagnosis, the better the treatment effectiveness and the prognosis. Hormone assays, routinely used, contribute to identify Cushing’s syndrome. However, no biomarker is currently available to directly quantify the biological action of glucocorticoids. Blood samples represent an easily obt...

Introduction: The human fetal adrenals (HFA) produce high levels of steroids. The gland is distinguishable from the 7th gestational week and can be separated in two zones: the fetal zone in the center which correspond of 80 % of the gland and the definitive zone in the periphery. At this time of the development, neural crest cells are reaching the adrenal primordium, producing catecholamines. A third zone, the transitional zone appears later in the early 2nd</s...

A 70-year old man was referred to the endocrinology department for the evaluation of a pituitary macroadenoma which was diagnosed during work-up for a malignant melanoma. Pituitary MRI showed a 20×21×25 mm adenoma with supra-sellar extension and no compression of the optic chiasma. Hormonal work-up revealed central hypogonadism and slight hyperprolactinemia due to stalk compression, while pituitary function was otherwise normal. MRI follow-up was scheduled in six mon...

A 25-year old woman with Hashimoto thyroiditis was referred to the endocrinology department for investigation of a 40 kilogram weight gain, polyuria, polydipsia and secondary amenorrhea. Hormonal work-up showed diabetes insipidus, central hypogonadism, secondary adrenal insufficiency, central hypothyroidism and slight hyperprolactinemia. Pituitary magnetic resonance imaging (MRI) revealed a 15 mm hypothalamic tumor expanding to the infundibulum, associated with pituitary stalk...