Fig. 1.

The expression of C5aR was up-regulated 3 days post-intracerebral haemorrhage (ICH) either in the wild-type (WT) or C3^–/– ICH groups by Western blot detection. C5aR expression was up-regulated from the sham to the 3 days post-ICH group, and then decreased 5 days post-ICH, as well as in the C3^–/– group. There were significant differences of optical density (OD) value 3 days post-ICH versus sham, 1 and 5 days post-ICH groups (**P < 0·05 versus sham, 1 and 5 days post-ICH groups, n = 5). Similar results were found in the C3^–/– group (**P < 0·05 versus sham, 1 and 5 days post-ICH groups, n = 5). Sham, saline injection group. Glyceraldehyde 3-phosphate dehydrogenase (GAPDH) as inter-reference.