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Calcitonin is a 32 amino acid peptide hormone secreted by parafollicular cells (also known as C cells) of the thyroid (or endostyle) in humans and other chordates ...
Calcitonin gene-related peptide (CGRP) is a member of the calcitonin family of peptides consisting of calcitonin, amylin, adrenomedullin, adrenomedullin 2 and calcitonin‑receptor‑stimulating peptide. Calcitonin is mainly produced by thyroid C cells whilst CGRP is secreted and stored in the nervous system. [1]
The calcitonin receptor (CT) is a G protein-coupled receptor that binds the peptide hormone calcitonin and is involved in maintenance of calcium homeostasis, [5] particularly with respect to bone formation and metabolism. [6] [7] [8]
Procalcitonin (PCT) is a peptide precursor of the hormone calcitonin, the latter being involved with calcium homeostasis. It arises once preprocalcitonin is cleaved by endopeptidase. [1] It was first identified by Leonard J. Deftos and Bernard A. Roos in the 1970s. [2]
Parafollicular cells secrete calcitonin, a hormone that participates in the regulation of calcium metabolism. Calcitonin lowers blood levels of calcium by inhibiting the resorption of bone by osteoclasts , and its secretion is increased proportionally with the concentration of calcium.
Salmon calcitonin (sCT) [1] is the type of calcitonin hormone found in salmon. [ 2 ] Similar to humans, salmon calcitonin is a peptide hormone produced in the ultimobranchial region by parafollicular cells in response to hypercalcemia and lowers blood calcium and phosphate by promoting renal excretion.
Calcitonin gene-related peptide (CGRP) receptor antagonists are a class of drugs that act as antagonists of the calcitonin gene-related peptide receptor (CGRPR). [ 1 ] Several monoclonal antibodies that bind to the CGRP receptor or peptide have been approved for prevention of migraine. [ 2 ]
In molecular biology, the amylin protein family or calcitonin/CGRP/IAPP protein family is a family of proteins, which includes the precursors of calcitonin/calcitonin gene-related peptide (CGRP), islet amyloid polypeptide (IAPP) and adrenomedullin.