Endocrine Abstracts

Human obesity is characterized by abnormalities in sympathetic cardiovascular control. We present two cases to demonstrate the relationship between weight, BP and catecholamines (UC).Case 1: A 39 year-old man reported symptoms of flushing and palpitations. His BMI was 50 kg/m2, consistent BP of 240/140 mmHg, with normal renal, thyroid function and normal fasting glucose. Urinary noradrenaline (UNA820 nmol/24 hrs) and dopamine (UDA-4500 nmol/24...

Introduction: Strontium ranelate (SR) is a dual action bone agent that increases bone formation and reduces bone resorption. Previous long term studies with SR have demonstrated minimal reductions in parathyroid hormone (PTH) and adjusted calcium (ACa) levels with increase in phosphate (PO4) concentrations, but the exact mechanism of action of SR remains unclear. Postmenopausal women with low bone mineral density (BMD) have relatively high circulating PTH concentrat...

Introduction: The effect of oestrogens on the male skeleton has been demonstrated in a number of studies and oestradiol (E2) plays an important role in regulating bone mineral density (BMD). The concentration of bioavailable oestradiol (BE), rather than total oestradiol (TE), is associated with bone loss in elderly men.Oestradiol circulates in the bloodstream in one of three forms: bound to SHBG; bound to albumin; and unbound/free. The albumin-bound plus the free fraction comp...