Fig. 4

Effects of RIPC-Exo and GA on apoptosis after cardiac I/R injury. A Representative images of TUNEL staining of hearts from the different rat groups. B Quantitative analysis of TUNEL-positive cardiomyocytes. TUNEL stain × 400, all bars = 20 μm. The results are represented by \(\overline{x}\pm \mathrm{s }\). *Ρ < 0.05 versus Sham group; ^#Ρ < 0.05 versus I/R group; ^&Ρ < 0.05 versus I/R + RIPC-Exo group; n = 5 for each group