... identified in vitamin D-resistant rickets. Work with parathyroid hormone (PTH) began much later, as the parathyroids were not identified until the late 19th century. In 1925, James B. Collip (of insulin fame) identified PTH by its ability to correct tetany in parathyroidectomized dogs, but only in the 1970s...

..., a short stature, a stocky build, early-onset obesity, ectopic ossifications, and neurodevelopmental deficits, as well as hormonal resistance most prominently to parathyroid hormone (PTH). In addition to these alterations, patients may develop other hormonal resistances, leading to overt or subclinical...

...) and parathyroid hormone (PTH) concentration at 12 months. Severe hypercalcemia was defined as Ca-ion exceeding the reference limit (1.16–1.39 mmol/L) by 10%. Results: No severe hypercalcemia occurred. Mild hypercalcemia (1.40–1.52 mmol/L) was present at 6 months in 28% and at 12 months in 2% of infants. At 12...

... or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements. Parathyroid hormone Fracture Bone formation Hypercalcemia...

...Stefano Stagi; Loredana Cavalli; Silvia Ricci; Marina Mola; Cinzia Marchi; Salvatore Seminara; Maria Luisa Brandi; Maurizio de Martino Background: Parathyroid hormone (PTH) is important in the assessment of calcium metabolism disorders. However, there are few data regarding PTH levels in childhood...

...Z. Amini; S. Bryant; C. Smith; R. Singh; S. Kumar Background/Aims: Serum 25 hydroxyvitamin D [25(OH)D] and parathyroid hormone (PTH) levels correlate inversely. The 25(OH)D level at which PTH is maximally suppressed and below which PTH begins to rise (inflection point) has been used to define...

... to in the content or advertisements. Parathyroid hormone Imprinting Pseudohypoparathyroidism GNAS The story of GNAS (guanine nucleotide-binding protein, α stimulating; MIM No. 610540) and parathormone (PTH) resistance began in 1942 when Fuller Albright [ 1 ] first described the absence...

... that correction of hypercalcemia should disinhibit circulating parathyroid hormone (PTH) levels, irrespective of the underlying disease. We have tested this hypothesis in subjects with multiple myeloma (MM) and squamous cell carcinoma (SCC) treated with pamidronate. In the MM group, PTH levels returned to normal...

... advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements. Ageing Parathyroid hormone Calcidiol...

...Bo Ahrén; Anders Bergenfelz To study possible influences of a mild increase in serum-ionized calcium concentration that is seen during daily life on circulating parathyroid hormone (PTH) immunoheterogeneity, we used sequence-specific PTH assays to determine serum intact PTH, C-terminal PTH and N...

...Anders Bergenfelz; Bo Ahrén Since osteocalcin has been suggested to play a role in calcium homeostasis, we investigated its serum levels in 6 healthy subjects during a rapid calcium infusion. Serum levels of intact parathyroid hormone (PTH), 25-hydroxyvitamin D [25-(OH) D 3 ] and 1,25...

... of intact parathyroid hormone (PTH), vitamin D metabolites, ionized calcium, phosphate, osteocalcin, thyroid hormones and bone density. Further, the dynamic function of the parathyroid glands was investigated by an oral calcium load test pre- and at 3 months postoperatively. At follow-up, all patients were...

...Anders Bergenfelz; Stig Valdermarsson; Bo Ahrén Primary hyperparathyroidism (pHPT) is associated with a right-shifted relation between parathyroid hormone (PTH) secretion and calcium. However, it is also possible that a decreased suppressibility of PTH secretion by calcium is important...

..., instructions or products referred to in the content or advertisements. Growth hormone Insulin-like growth factors Parathyroid hormone Vitamin D metabolites Bone Osteoporosis Acromegaly Growth hormone deficiency Horm Res 1991;36(suppl I):49 55 © 1991 S. Karger AG, Basel 0301-0163/91 /O367...

...S. Balabanova; J. Hartmann; U. Töllner; R. Nowak; U.-C. Kirkpatrick The acute effect of stress on the plasma and cerebrospinal fluid (CSF) immuno-reactive parathyroid hormone (PTH) response was studied in 6 merino sheep. Stress was exerted by weak periodical electric square waves (PESW...

...Jürg W. Blum; Rico Thun; Jan A. Fischer Experiments were performed to study plasma concentrations of parathyroid hormone in association with short-term changes of cortisol and dexamethasone. Parathyroid hormone was not significantly modified during 3-hour intravenous infusions of cortisol, leading...

...J. Aloia; D. Powell; E. Mendizibal; M. Roginsky Parathyroid function was assessed in six acromegalic subjects by measurement of serum levels of parathyroid hormone (PTH). Only one patient had increased PTH levels. These findings suggest that hyperparathyroidism does not uniformly occur...

... kidney enzyme preparation preferentially hydrolyzing parathyroid hormone. Parathyroid hormone in human serum lost its immunoreactivity after incubation with this rat kidney enzyme preparation according to radioimmunoassay using guinea pig antibody to bovine parathyroid hormone and 125 I-labeled highly...

...A.D. Care; R.F.L. Bates Factors which affect the secretion of parathyroid hormone (PTH) and calcitonin (CT) are subdivided into those which are nonspecific, those associated directly with ionic changes and those associated with changes in the intracellular concentration of cyclic AMP. Whereas PTH...

...T.V. Gudmundsson; N.J.Y. Woodhouse The regulation of plasma calcium is usually attributed to variations in osteoclastic resorption of bone under the influence of parathyroid hormone. This hormone however increases tubular reabsorption of calcium and absorption of calcium from the gut. The actions...