Fig. 5

a The expression of miR-200b in heart tissues of Dox-treated mice; b the expression of miR-200b in Dox-treated cardiomyocytes. Dox indicates Dox-treated mice injected with PBS; Dox+Exo indicates Dox-treated mice injected with TSC-Exos. #p < 0.05 compared with Dox