FIG. 3.

α1 Expression is decreased and α4 expression is increased in injured hippocampi 6 h after fluid percussion injury (FPI). mRNA levels of α1 and α4 were quantified using RT-PCR analysis and represented as histograms showing the fold change of α1 (A) and α4 (B) 6 h after FPI and in sham-injured controls. α1 and α4 mRNA levels were normalized to cyclophilin mRNA levels in the same samples and expressed as fold change compared to sham animals (defined as 1; *p<0.05; n=4 for sham, 4 for FPI; RT-PCR, reverse transcriptase polymerase chain reaction).