Figure 5: The effects of atorvastatin (ATV) and lovastatin (LVT) alone or in combination with Co-Q10 or L-carnitine (LC) on the cytochrome c oxidase (complex IV) activity. Data are presented as mean ± SEM (n = 6). One-way ANOVA was used to analyse the data. ** and *** significantly different from the control (P < 0.01 and P < 0.001, respectively). ## and ### significantly different from atorvastatin and lovastatin alone groups (P < 0.01 and P < 0.001, respectively).