Fig. 4

Açaí decreases DNA damage in heart cells. Picrosirius red staining was more intense and more evenly distributed in heart tissue samples from the açaí + FAC-D rats (B) than in those from the saline + FAC-D rats (A), and the difference in terms of collagen deposition was confirmed by histomorphometric analysis (C). The hydroxyproline concentration was higher in the açaí + FAC-D group than in the saline + FAC-D group (D). The immunoreactivity of H2AX was predominantly detected in the hearts of those in the saline + FAC-D group (E, G) compared with those of the açaí + FAC-D group (F, H). I. Histomorphometry evaluations of H2AX are shown