Negative control group, PS: mean, 3.50 µm2; 95% CI, varying from 2.11 to 4.89 µm2;Positive control group, cilostazol: mean, 3.98 µm2; 95% CI, varying from 2.83 to 5.14 µm2;Treated group, A. sativum: mean, 4.16 µm2; 95% CI, varying from 1.66 to 6.67 µm2;with P=0.8295 and not significant in the Tukey test.