Figure 2: Influence of atorvastatin, simvastatin and ezetimibe on nitric oxide release in HUVEC. Values are shown as mean and SEM (n=5) and compared by one-way ANOVA followed by Tukey posttest. HUVEC cells were treated for 24 h and stimulated with human TNFa [10 ng/mL; 0 (tnf)] 6 h before supernatant isolation for NO measurements.