with deprivation of vitamin d , the progressive increase in 1 alpha-hydroxylase correlated inversely with circulating levels of 1,25-dihydroxyvitamin d ( 1,25- [ oh ] 2d ) , and the decreasing calcemic response to pth correlated inversely with the responsiveness of 1 alpha-hydroxylase to pth ( in chicks deprived of vitamin d for 1-10 d ) .
C0020437
calcemic
C0014695
vitamin d