“ Hesperetin concentration-dependently inhibited washed … by collagen and arachidonic acid , with IC50 of 20.5+/-3.5 and 69.2+/-5.1 microM, respectively, while has little effect on thrombin- … (TX) A2 mimic, mediated platelet aggregation, suggesting that hesperetin may selectively inhibit collagen- and arachidonic acid-mediated signal transduction.”
“In addition, hesperetin inhibited arachidonic acid-mediated platelet aggregation by interfering with cyclooxygenase-1 activity as established by the measurement of arachidonic acid-mediated TXA2 and prostaglandin D2 formations as well as cyclooxygenase-1 and TXA2 synthase activity assays.”