Fig. 4

Triceps brachii muscle size and composition at 4 and 7 months on Western diet. Representative images of triceps brachii stained with Masson’s trichrome, scale bars 500 μm (left) and 150 μm (right) at 4 (a) and 7 months of age (b) on Western diet. Quantification of total triceps brachii area in square centimeter (c) and percentage of area composed of fat (d), fibrosis (e), and healthy myofiber (f). WT 4 m (n = 4), 7 m (n = 9); ApoE 4 m (n = 3), 7 m (n = 9); mdx 4 m (n = 7), 7 m (n = 7); mdx-ApoE 4 m (n = 6), 7 m (n = 10). Mean + SEM. *P < 0.05 **P < 0.01 ***P < 0.001 ****P < 0.0001