PRDX1 and Stroke: In the stroke patients, median PRDX1 levels were significantly higher in blood samples withdrawn before vs. after 3 hours following onset (11.7 ± 15.6 vs. 5 ± 11.6 ng/mL, p < 0.01) (Fig. 4a, Table 2) and in blood samples withdrawn before vs. after 6 hours following onset (9.6 ± 14.9 vs. 4.9 ± 11.9 ng/mL, p < 0.01) (Fig. 4b, Table 2).