Fig. 6

ELISA analysis of IL-β and TNF-α in the brain cortex of rats 24 h after SAH. The concentrations of  IL-β (a) and TNF-α (b) significantly increased at 24 h after SAH and decreased after administration of r-PGRN. No difference was detected between the untreated SAH group and the PBS-treated SAH group. Data are expressed as the mean ± SEM from six rats. ***p < 0.001 compared with the sham group, ^ns p > 0.05 compared with the SAH group, ^## p < 0.01 compared with the SAH group