in the absence of 1,25 ( oh ) 2d3 , treatment of cultures for 20-24 h with 10 ( -5 ) and 10 ( -6 ) m estradiol led to inhibition of 25-hydroxyvitamin d3 [ 25 ( oh ) d3 ] -1-hydroxylase activity .
C0006657
25-hydroxyvitamin d3
C2713074
25 ( oh ) d3