Fig. 3.

Effects of dietary Pi on renal Fgfr1 and bone Fgf23 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. Mice kidney and bone total RNA was extracted and gene expression was measured by quantitative real-time RT-PCR analysis. (A) Renal Fgfr1 mRNA expression. (B) Bone Fgf23 mRNA expression levels. Data are expressed as means ± SEM (n = 4–9). *p<0.05 vs corresponding age in the HP group, ^†p<0.05 vs 1 month-old group, ^††p<0.05 vs 2 month-old group.