OBJECTIVE To better define the typical and atypical biochemical profiles of patients with surgically proven primary hyperparathyroidism. METHODS In this single-center, prospectively conducted study of consecutive patients with surgically proven primary hyperparathyroidism over a 7-year period, we analyzed serum calcium, parathyroid hormone, and 25-hydroxyvitamin D concentrations. RESULTS A ...

Introduction: Parathyroid dysfunction leading to symptomatic hypocalcemia is not uncommon following a total thyroidectomy and is often associated with significant patient morbidity and a prolonged hospital stay. The current study aimed at evaluating the comparative predictive role of serum calcium and intact parathyroid hormone (iPTH) for post-thyroidectomy hypocalcemia.   Materials and Methods...

Tritiated acetamidino-parathyroid hormone localizes rapidly and specifically in the kidneys of thyroparathyroidectomized rats within 30 min after subcutaneous injection. There is some indication of saturation of the kidney by the hormone very early after injection with doses of greater than 40 pg per rat. The hormone is metabolized rapidly to trichloroacetic acid-soluble components with a resul...

abstract background: primary hyperparathyroidism is autonomous production of parathyroid hormone. after removal of adenoma, one of the surgeons concern is postoperative hypocalcaemia. there is no precise method to determine if patients have hypocalcaemia postoperatively. the purpose of this study was to determine the relation between parathyroid adenoma weights, postoperative serum calcium and ...

 ABSTRACT Background: To determine daily calcium, Vitamin D intake and serum biochemical findings of rickets in adolescent girls. Methods: A total of 414 healthy adolescent student girls aged 11-15 years were evaluated from various areas of Tehran, Iran with different socioeconomic status. A randomized, cross-sectional, prospective and descriptive study was undertaken for calculation of daily c...

in mammals, phosphocalcic and bone metabolisms are mainly regulated by parathyroid hormone, parathyroid hormone-related peptide (pthrp) and 1α,25-dihydroxyvitamin d or calcitriol. in camels, circulating levels of calcitriol are 10 times higher than those determined in other ruminants and further increase during early lactation. calcitriol and parathyroid-related peptide stimulate intestinal abs...

A 17-year-old boy with hyperparathyroidism exhibited a large cyst in the left hemi-thorax on his chest X-ray. The cyst was identified as a hydatid cyst. He was referred for biphasic methoxy isobutyl isonitrile (MIBI) parathyroid scan. A discrete ectopic parathyroid was detected in the left upper mediastinum in addition to accumulation of the MIBI tracer in the cyst wall. Using radio-guided occu...

Gel filtration and radioimmunoassay were used to determine the molecular size and immunochemical reactivity of parathyroid hormone present in gland extracts, in the general peripheral circulation, and in parathyroid effluent blood (obtained by venous catheterization) from patients with hyperparathyroidism, as well as from calves and from cattle. Hormone secreted in vivo from normal bovine parat...