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calcitonin

calcitonin

1 8.6
A hormone made by the thyroid that lowers calcium in the blood and stops bones breaking down
  • noun
  • /ˌkælsɪˈtoʊnɪn/
  • Specialized
: calcitonina
  • The doctor explained that calcitonin helps lower calcium levels in the blood.
  • calcitonin treatment
  • calcitonin levels
  • calcitonin gene-related peptide

Examples

  • Salmon calcitonin is used because it has a longer half-life and a reduced clearance rate compared to human calcitonin.

    Academic text (2002)
  • The benefits of calcitonin treatment may include diminished bone pain and decreased bone disease activity.

    Academic text (2004)
  • Medical treatment for this disease includes bisphosphonate and calcitonin therapy.

    Academic text (2010)
  • However, others have shown that calcitonin administration to normal subjects, even in high doses, is not followed by hypocalcemia.

    Academic text (1996)
  • Thus, the early hope that calcitonin might be a major factor in treating osteoporosis has not been fully realized.

    Academic text (2002)
  • About 50% of the patients treated with calcitonin will experience reduced markers of bone resorption turnover.

    Academic text (2004)
  • Limited studies suggest calcitonin may blunt the action of teriparatide if both are used concurrently.

    Academic text (2007)
  • A small trial also suggested that calcitonin decreased the rate of new vertebral fractures, despite the negligible effect on bone density.

    Academic text (1996)
  • Our patient had endocrine dysfunction, including increased levels of calcitonin and catecholamines, associated with her diagnosis of MEN type 2B.

    Academic text (2007)
  • Randomized trials have shown increases in bone mass with several treatments, including estrogen, calcitonin, calcitriol, sodium fluoride, and bisphosphonates.

    Academic text (1996)

Synonyms

thyrocalcitonin
vscalcitonin
  • Specialized
9.9

A hormone the thyroid gland makes that lowers blood calcium

is the same hormone but called by an alternative name

Surface Forms

calcitonin singular
calcitonins plural

Morphology

calcitonin = calcium (semi-transparent) = calci + tonin

The combining form 'calci-' signals a relation to calcium, but '-tonin' is a specialized biochemical naming element, so the precise hormonal function is not predictable from the base alone.

Etymology

Calcitonin comes from calci- meaning 'calcium' and -tonin from a Greek root meaning 'tone' or 'tension'. So, it is a hormone that 'tones down' calcium in the blood, which fits its job of lowering blood calcium levels.