Figure 6. MET decreases apoptosis in aging mice. (A) TUNEL-stained (green fluorescence) and DAPI-stained (blue fluorescence) photomicrographs. Magnification 40×. (B) Quantification of apoptotic cardiomyocytes. (C) Cardiac BAX, Bcl-2, Bak, and Bcl-XL levels assessed by western blotting. (D) Quantification of relative protein expression levels. n = 6–8 per group. *P < 0.05.