Fig 2. The levels of plasma αB-crystallin after an intravenous injection (a) and effect of αB-crystallin on platelet aggregation ex vivo using normal hamster PRP (b). αB-crystallin was injected intravenously as a bolus at doses of 30 (circle), 100 (triangle), and 300 (square) μg/ kg. The aggregation of platelets stimulated by botrocetin (3.3 μg/mL) was performed after preincubation for 20 minutes with αB-crystallin. Each value represents the mean ± SEM of triplicate determinations. * P < 0.05 versus the value of botrocetin without αB-crystallin.