Figure 1.

Effect of different flavonoids on platelet aggregation induced by 0.2 U·mL⁻¹ thrombin. Washed platelets (300 × 10⁹ L⁻¹) were incubated in the absence or presence of different flavonoids (200 µM) for 15 min before the addition of the agonist. Results are expressed as the percentage of platelet aggregation, with washed platelets as the baseline and Tyrode's buffer as 100% of light transmission. Data shown are means ± SEM from five different experiments. *P < 0.05 compared with dimethylsulphoxide-treated platelets (control sample). Api, apigenin; Dma, dimethylapigenin; Cat, catechin; Gen, genistein; Que, quercetin; Rho, rhoifolin; Rut, rutin; Nge, naringenin; Ngi, naringin; Ndc, neohesperidin dihydrochalcone; Pap, phloroacetophenone; Dmi, diosmin; Dme, diosmetin.