Figure 1.

Cardiomyocytes observed by H&E staining (magnification, ×200), cardiomyocyte size (apoptosis) in aging rat was decreased after atorvastatin treatment. (A) Young control group, myocardial cells have the smallest diameter with relatively neat and compact muscle fibers compared with the other 3 groups; (B) aging control group, myocardial cells have the largest diameter and interstitial spaces with the most loose muscle fibers of the 4 groups; (C) atorvastatin low-dose group compared with the high-dose group, the low-dose group has relative large cardiomyocyte size and loose muscle fibers; (D) atorvastatin high-dose group. H&E, hematoxylin and eosin.