Figure 4
Immunohistochemical staining for insulin (a), percent beta cell area in the pancreas (b), immunofluorescence staining for the GLP-1 receptor (green) and insulin (red) (c), and ratio of the GLP-1 receptor-positive area to the insulin-positive area (d). Scale bars, 50 μm. Black bars: Ctrl, control group; white bars: MA, metformin alone group; upward dashed bars: FA, fenofibrate alone group; downward dashed bars: MF, metformin plus fenofibrate group. ***P<0.001 vs Ctrl, †††P<0.001 vs MA, ‡P<0.05 vs FA.
