BACK TO calcitriol

calcitriol vs. calcitonin

[ kal-si-tree-awl, -ol ]
  1. a vitamin D compound, C27H44O3, occurring in humans as a hormone derived from cholesterol, that acts in the regulation and absorption of calcium.
  2. a preparation of this compound, used in the treatment of osteoporosis and bone fracture.
[ kal-si-toh-nin ]
  1. a polypeptide hormone that participates in the regulation of calcium levels in vertebrates by inhibiting loss of calcium from bone to the blood.

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