Fig. 1From: Iron deficiency decreases renal 25-hydroxyvitamin D3-1α-hydroxylase activity and bone formation in ratsSerum 1,25-dihydroxyvitamin D3 concentration (a), renal iron concentration (b), and 1α-hydroxylase activity (c) of the control (C), iron-deficient (ID), and pair-fed (PF) groups. The data are presented as the mean ± SE for each group of 6 rats. a,bThe different letters denote significant differences (p < 0.05)Back to article page