Cellular proteins were isolated from brain tissues of sham (S), cerebral I/R (I/R), Pam3SCK4 treated sham control (Pam-S), and Pam3SCK4 treated I/R (Pam-I/R) mice, respectively and subjected to Western blot with specific antibody against Occludin. The data are expressed as mean ± standard error (s.e.). *compared with sham, p<0.05; #compared with I/R, p<0.05.