Fig. 1.

Effects of dietary Pi on renal Cyp27b1 and Cyp24a1 gene expression in each age group mice. 1, 2 and 13 month-old C57BL/6J mice were fed either a HP (□) or LP (■) diet for 5 days. Total RNA from the kidneys was extracted and gene expression was measured by quantitative real-time RT-PCR analysis. (A) Renal Cyp27b1 mRNA expression. (B) Renal Cyp24a1 mRNA expression levels. Data are expressed as means ± SEM (n = 4–5). *p<0.05 vs same age in the HP group, ^†p<0.05 vs 1 month-old group, ^††p<0.05 vs 2 month-old group.