- the most active metabolite of cholecalciferol, synthesized in the kidney from 25-hydroxycholecalciferol; it increases intestinal absorption of calcium and phosphate, enhances bone resorption, and prevents rickets. Because these activities occur at sites distant from its site of synthesis, it is considered a hormone. Called also calcitriol and 1,25-dihydroxyvitamin D3.
Medical dictionary. 2011.
Look at other dictionaries:
125-dihydroxyvitamin D — 1,25 di·hy·droxy·vi·ta·min D (di″hi drok″se viґtə min) either 1,25 dihydroxycholecalciferol, the corresponding dihydroxy derivative of ergocalciferol, or both collectively. See also table at cholecalciferol … Medical dictionary
125-dihydroxyvitamin D3 — 1,25 dihydroxycholecalciferol … Medical dictionary
Osteoporosis — Classification and external resources A stooped back is often the result of osteoporosis. ICD 10 M … Wikipedia
renal system — ▪ anatomy Introduction in humans (human body), organ system that includes the kidneys, where urine is produced, and the ureters, bladder, and urethra for the passage, storage, and voiding of urine. In many respects the human excretory, or… … Universalium
Thiamine — For the similarly spelled nucleobase, see thymine. Thiamine chloride … Wikipedia
Vitamin C — This article is about ascorbic acid as a nutrient; for its chemical properties, see the article ascorbic acid; for other uses, see the disambiguation page. Vitamin C … Wikipedia
Folic acid — Folic acid … Wikipedia
endocrine system, human — ▪ anatomy Introduction group of ductless glands (gland) that regulate body processes by secreting chemical substances called hormones (hormone). Hormones act on nearby tissues or are carried in the bloodstream to act on specific target organs… … Universalium