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Definition of «Calcitonin»


Calcitonin: A hormone produced by the thyroid gland that lowers the levels of calcium and phosphate in the blood and promotes the formation of bone.

Bone is in a constant state of remodeling whereby old bone is removed by cells called osteoclast and new bone is laid down by cells called osteoblasts. Calcitonin inhibits bone removal by the osteoclasts and at the same time promotes bone formation by the osteoblasts.

Calcitonin is given in hypercalcemia (high blood calcium) to lower the calcium level; in osteoporosis to increases bone density and decrease the risk of a fracture; and in Paget disease to decrease bone turnover and bone pain.

Calcitonin is also called thyrocalcitonin.

For More Information «Calcitonin»

  • calcitonin: Definition from Answers.com

    Library > Literature & Language > Dictionary ( kăl ' sĭ-tō ' nĭn ) n. A peptide hormone, produced by the thyroid gland in humans, that lowers plasma ...

  • Calcitonin - arbl.cvmbs.colostate.edu

    Calcitonin is a hormone known to participate in calcium and phosphorus metabolism. In mammals, the major source of calcitonin is from the parafollicular or C cells in ...

  • Calcitonin: The Test

    Describes when the calcitonin test is ordered, how the calcitonin test is used, and what the results of a calcitonin test might mean

  • Calcitonin - New World Encyclopedia

    Calcitonin is a 32 amino acid polypeptide hormone that is involved in calcium regulation in vertebrates. It acts to reduce blood calcium (Ca 2+) levels, working in opposite but ...

  • Calcitonin-salmon (Miacalcin, Fortical, Calcimar) Drug ...

    Drug information about Calcitonin-salmon (Miacalcin, Fortical, Calcimar) prescribed for the treatment of postmenopausal osteoporosis, Paget's disease of the bone, and ...

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