IL1B and brain ischemia: To further investigate whether MFSCE attenuates neuroinflammation after cerebral ischemia, we determined the expression of NLRP inflammasome-associated proteins, including NLRP1, NLRP3, ASC, CL-caspase-1, CL-caspase-11, IL-1β, and IL-18 in the ischemic cortex using Western blotting.