Figure 6

Metformin rescues BMP6-mediated alteration of iron metabolism in mice.
(a–e) C57/BL6 mice (n = 4 per group) were treated with BMP6 (500 μg/kg, i.p.) and metformin (200 mg/kg, p.o.). (a) Serum iron level. (b) Q-PCR analysis showing hepcidin and SHP mRNA levels in liver. (c) Serum hepcidin levels. (d) Western blot analysis showing SMAD1/5/8 phosphorylation and FPN in liver. (e) Western blot analysis (top) and graphical representation (bottom) showing FPN expression in spleen. (f) Schematic diagram of SHP-mediated inhibition of BMP6-SMADs pathway. Data are presented as means ± SD. Arrows show locations of molecular weight markers. The western blot images were cropped with a grey cropping line. All gels for western blot analysis were run under the same experimental conditions. *P < 0.05, **P < 0.01, ***P < 0.001 by two-tailed Student t-test.