Negative control group, PS: mean, 8.35 µm2; 95% CI, 5.74–10.96 µm2;Positive control group, cilostazol: mean, 14.47 µm2; 95% CI, 8.06–20.88 µm2;Treated group, A. sativum: mean, 11.52 µm2; 95% CI, 7.09–15.96 µm2, with P=0.1387 and not significant in the Tukey test.