it is apparent that either 25 ( oh ) d3 or some as yet unidentified metabolite of 25 ( oh ) d3 stimulates the renal tubular reabsorption of calcium and phosphate , and that the subsequent rise in serum phosphate concentrations along with the direct actions of 1 alpha-25 ( oh ) 2d3 , 24,25 ( oh ) 2d3 , and possibly 25 ( oh ) d3 on bone cells all participate in the restoration of normal bone formation and bone mineralization in vitamin d-deficient man .
C2713074
25 ( oh ) d3
C0042870
vitamin