Western blot analysis of proinflammatory cytokines in cerebral cortex tissues. β-actin served as an internal control. Values are presented as the mean ± standard error of the mean (n=7 per group). Data were subjected to one-way analysis of variance followed by the Tukey test for multiple comparisons. aP<0.05 vs. sham; bP<0.05 vs. SAH. SAH, subarachnoid hemorrhage; DOPET, 3,4-dihydroxyphenylethanol; TNF-α, tumor necrosis factor-α; IL, interleukin.