Figure 4. IF peptide administration in combination with exercise training on HFD induced heart and liver histology in aging model. Hematoxylin and eosin (A) and Masson’s trichrome (B) staining on heart and liver tissues obtained after IF administration and 15 weeks of exercise training show difference in liver and heart histology among different groups (n=6) of SAMP8. C: Control; HF: High-fat diet; EX: Exercise; HF+IF: High-fat diet+IF; HF+EX: High-fat diet+ Exercise; HF+EX+IF: High-fat diet+ Exercise+ IF. Scale bars, 50 μm. (Magnification, 200x).