نتایج جستجو برای: human calcitonin
تعداد نتایج: 1647951 فیلتر نتایج به سال:
This receptor family comprises a group of receptors for the calcitonin/CGRP peptides. The calcitonin (CT), amylin (AMY), gene-related peptide (CGRP) and adrenomedullin (AM) (nomenclature as agreed by NC-IUPHAR Subcommittee on CGRP, AM, AMY, CT [131, 74, 71]) are generated genes CALCR (which codes receptor, CTR) CALCRL receptor-like CLR, previously known CRLR). Their function pharmacology altere...
Receptors for calcitonin, as assayed by the specific binding of 125I-labeled salmon calcitonin and stimulation of cyclic AMP formation, were found in 8866 cells derived from a human lymphoid line. The affinity of calcitonin from different species and of various analogues of human calcitonin for the binding sites and their ability to stimulate cyclic AMP formation were closely related to their h...
An interlaboratory study for the radioimmunological determination of calcitonin was performed within the European PTH Study Group (ESPG), to improve comparability using external quality control. Twelve laboratories determined calcitonin in 21 deep frozen samples using their respective calcitonin radioimmunoassay systems. The samples included a standard curves of human calcitonin (sequence 1-32)...
Human calcitonin is the physiological hormone involved in calcium-phosphorus homeostasis. However, its use is limited by its propensity to form aggregates. We find that the type of host lipid has a pronounced influence on human calcitonin fibrillation or incorporation, as assessed by channel formation, in planar lipid membranes at neutral pH. At pH 7, human calcitonin is able to interact and fo...
Although a strong correlation between neuroendocrine differentiation and angiogenesis of prostate cancer has been reported, no mechanistic link between the two events has been established. Because neuropeptide calcitonin is secreted by prostate tumors and endothelial cells are known to express calcitonin receptor-like receptor, we examined the potential action of calcitonin on endothelial cells...
1. Plasma concentrations of human calcitonin were measured in groups of patients with chronic renal failure, treated either conservatively or by haemodialysis, and compared with a normal group of persons. 2. Plasma calcitonin was statistically significantly elevated in both groups with renal failure. 3. When the data from the three groups were pooled, plasma calcitonin was found to be inversely...
1. The effects on renal electrolyte excretion of human and salmon synthetic calcitonins were studied in the rat. 2. As little as 50 ng of salmon calcitonin produced an increase in sodium excretion, but human calcitonin in doses up to 15 pg had only a slight effect. 3. Small doses of both hormones decreased urinary calcium and magnesium. Larger doses of salmon calcitonin produced less depression...
Calcitonin gene-related peptide (CGRP) has recently been identified in central and peripheral nerve fibres, including those of blood vessels supplying the exocrine pancreas, and in pancreatic islet cells. Moreover, receptors have been characterised in the same tissue. The present study examined the effects of human CGRP and of calcitonin on exocrine pancreatic secretion and on islet cell functi...
The TT cells are a continuous line of human C-cells derived from a medullary thyroid carcinoma. These cells produce large quantities of calcitonin and calcitonin gene-related peptide (CGRP) by the differential splicing of a single calcitonin gene transcript. We have used specific cDNA probes for calcitonin and CGRP to study the regulation of the calcitonin gene by dexamethasone, a synthetic glu...
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