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. Author manuscript; available in PMC: 2013 Mar 28.
Published in final edited form as: Circ Res. 2012 Mar 13;110(8):1087–1096. doi: 10.1161/CIRCRESAHA.112.266478

Figure 1. Regulation of muscle fiber type by estrogen-related receptor-γ (ERRγ).

Figure 1

A, Representative micrographs (upper panel) of superficial tibialis anterior (TA) muscle stained for type IIA (green), type IIB (red), and type IIX (purple) myofibers in wild-type and transgenic mice. Quantification of different fiber types (lower panel) in superficial TA (N=8 mice). B, Representative micrographs (upper panel) of deep TA stained for different myofibers. Quantification of different fiber types (lower panel) in deep TA (N=8 mice). *Statistically significant difference between wild-type and transgenic mice (P≤0.001, unpaired Student t test). Scale, 100 µm.