Endocrine Abstracts

Introduction: Conventional treatment of secondary hyperparathyroidism (SHP) requires supplementation of vitamin d analogues combined with calcium however several studies have reported concerns regarding the safety of calcium supplements particularly in the long term. If vitamin d without concomitant calcium supplementation is sufficient to prompt a fall in the parathyroid hormone (PTH) is still not known with certainty. The purpose of our study was to investigate if vitamin d ...

Introduction: Ectopic parathyroid tissue is a rare cause of primary hyperparathyroidism (PHPT). Intrathyroid location has been reported in 18–33% of cases.Case report: A 67-year-old Caucasian female was admitted for evaluation of multi-nodular goiter and normocalcaemic PHPT. The patient was asymptomatic; her medical history was remarkable for hypertension, dyslipidaemia, and albuminuria. Her family history has positive for albuminuria.<p class="...

Vitamin D binding protein (VDBP) has a critical role in orchestrating optimal vitamin D homeostasis and bioavailability. VDBP has been implicated in modulating the gene expression of amino-transporters within the placenta and might thus control the transfer of amino acids to neonates during in utero development. We hypothesize that dyshomeostasis of VDBP could lead to adverse metabolic profiles and low birth weight in neonates. VDBP genetic polymorphisms steer the uni...

Background: In the last decade, the combination of the widespread use of streptavidin-biotin technology and biotin–containing supplements (BCS) in the daily clinical practice, have led to numerous reports of erroneous hormone immunoassay results. However, there are no studies assessing the clinical and biochemical significance of that phenomenon, when treating patients with hypothyroidism. Therefore, a prospective study was designed to investigate the potential alteration...

Background: Sulfonylureas (SUs) are known to increase fasting insulin levels in patients with Type 2 Diabetes (T2D) treated with these agents. Whether this increase is related to a greater risk of hypoglycemia has not yet been sufficiently elucidated.Methods: The study included 58 patients with T2D who had been on treatment with SUs, but not insulin, for more than 2 years. Confirmed hypoglycemic episodes during the past year were self-reported by the pat...

Objective: To report a case of hypogonadism reversal and spontaneous puberty in a craniopharyngioma patient who suffered from hypopituitarism as a result of complete surgical resection.Methods: A 13-year-old boy with hypopituitarism was evaluated for right testicular sensitivity.At the age of 6 the child presented with growth arrest and a craniopharyngioma causing pituitary insufficiency was diagnosed. Treatment with hydrocortisnon...

Background: Although primary hyperparathyroidism (PHPT) has been associated with diabetes mellitus (DM), the etiological link is not clear and the effect of parathyroidectomy is controversial.The aim of this observational study was to investigate the metabolic link between calciotropic hormones and glucose metabolism in PHPT patients before and after parathyroidectomy.Methods: Twenty-four consecutive patients with PHPT (Group-A) without DM were included ...

Irisin is an adipomyokine produced during physical activity and implicated in the browning of adipose tissue. Existing evidence suggests an inverse relationship between irisin plasma levels and adverse metabolic outcomes; however, the exact impact of diet on irisin levels remains unclear. We aimed to assess the effects of two dietary patterns, Christian Orthodox fasting (OF) and 16:8 time-restricted eating (TRE), on irisin concentrations among overweight, metabolically healthy...

Introduction: Greek Orthodox monasteries due to their sartorial habits, comprise a population with high prevalence of hypovitaminosis D. Intermittent religious fasting is adopted by this population, as well as from a large part of general lay Greek population. Comparative effects of vitamin D supplementation and intermittent fasting on vitamin D equilibrium and calciotropic profiles remain scarce.Aim: To comparatively evaluate effects of vitamin D supple...

Background: Data on the effects of different dietary patterns on free 25-hydroxyvitamin D [25(OH)D] and vitamin D binding protein (VDBP) concentrations are scarce. Our objective was to prospectively assess changes over time in these parameters and possible correlations with diet composition among overweight adults who followed a pescatarian Orthodox intermittent fasting (OF) regimen and controls who followed a low-fat 12:12 diet for 7 weeks.Methods: Tota...