Double immunofluorescence for p16 and cardiac cell-type markers in LA of sham and MI rats treated with vehicle or D + Q. (A) Fibroblast marker, vimentin (n = 4–5; unpaired t-test). (B) Endothelial cell marker, CD 31 (n = 4–5; unpaired t-test). (C) Myofibroblast marker, αSMA (n = 5–8; unpaired t-test). (D) Cardiomyocyte marker, troponin I (n = 8; unpaired t-test). All panels show cell marker staining (green), staining for p16 (red), and DAPI (DAPI, blue). D + Q, dasatinib and quercetin; DAPI, 4′,6-diamidino-2-phenylindole; MI, myocardial infarction.