IL1B and Stroke: As for the inflammasome products, the activated cleaved IL-1β increased soon after stroke (1 day) (Sh: 1.00 ± 0.16; 1 d: 7.86 ± 4.98; 3 d: 7.07 ± 4.08; 5 d: 6.41 ± 2.84; 7 d: 4.79 ± 2.39, P < 0.05) and remained at high level until at least day 7.