CALCITRIOL
\kˈalsɪtɹɪˌɒl], \kˈalsɪtɹɪˌɒl], \k_ˈa_l_s_ɪ_t_ɹ_ɪ__ˌɒ_l]\
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The physiologically active form of vitamin D. It is formed primarily in the kidney by enzymatic hydroxylation of 25-hydroxycholecalciferol (CALCIFEDIOL). Its production is stimulated by low blood calcium levels and parathyroid hormone. Calcitriol increases intestinal absorption of calcium and phosphorus, and in concert with parathyroid hormone increases bone resorption.
By DataStellar Co., Ltd
Word of the day
hydromorphic
- [Greek] Structurally adapted to an aquatic environment, as organs of water plants.