Fig. 5.

Analysis of fibroblast growth factor 2 (FGF-2) protein in the lungs of mice fed a low Pi diet (0.1% Pi) or a normal (0.5% Pi) diet for 4 weeks. (A) The expression of FGF-2 protein in the lung. (B) The bands-of-interests were further analyzed by using a densitometer. (C) Immunohistochemical measurement of FGF-2 in the lung of transgenic mice. The dark brown color indicates the expression of FGF-2 (scale bar = 100 µm). (D) Comparison of the FGF-2 labeling index in the lungs. p values (^*p < 0.05, ^**p < 0.01) indicate a significant difference compared with normal (mean ± SE, n = 4).