Calcitonin is a peptide hormone that lowers blood calcium level and inhibits bone resorption. It belongs to the calcitonin family of peptides, which also includes amylin , calcitonin gene-related peptide , and adrenomedullin. The binding of salmon calcitonin to the human calcitonin receptor (CTR) is not modulated by receptor activity-modifying proteins (RAMPs), which influence affinity of human calcitonin to CTR. Salmon calcitonin binds to human CTR2 with IC50 values of 0.933, 0.224, 0.134, and 0.317 nM alone and with RAMP1, 2, or 3, respectively. It induces cAMP accumulation in COS-7 cells transfected with CTR2 (EC50 = 0.166 nM). Salmon calcitonin inhibits bone resorption by osteoclasts in a pit formation assay using rat bone slices (ID50 = 0.003 pg mL) and lowers calcium level in vivo in a bioassay of hypocalcemia in rats (ED15 = 33.9 mg kg). Formulations containing salmon calcitonin have been used to treat hypercalcemia, bone destruction by osteoporosis, and Paget's disease.
Adrenomedullin (AM) (22-52), human [22-52-Adrenomedullin human], TFA, is a C-terminal truncated analogue of adrenomedullin and acts as an adrenomedullinreceptor antagonist.
Adrenomedullin 11-50 rat is a peptide fragment of adrenomedullin that possesses systemic vasodilator activity at the level of calcitonin gene-related peptide-1 (CGRP1) receptor activation. Adrenomedullin and its peptide may be used in bone growth studies.
Adrenomedullin (1-50), rat, is a 50 amino acid peptide hormone that induces selective arterial vasodilation via CGRP1 receptor activation, with RNA expression in rat adrenal glands, lung, kidney, heart, and spleen.
Adrenomedullin (13-52) is a 40 amino acid peptide with one intramolecular disulfide bridge, Adrenomedullin (13-52) is a high affinity ligand for the adrenomedullinreceptor.
Endogenous central calcitonin (CT) receptor agonist that stimulates cAMP formation at a potency 350-fold greater than CT (ED50 values are 0.2 and 71 nM respectively). Displays no activity at calcitonin-gene related peptide (CGRP) and adrenomedullin recept