MMP-9 mRNA Expression.

<p>MMP-9 mRNA expression level in the ischemic zone of the rat brain was determined by RT-PCR with β-actin used as an internal control. (B) Densitometric analysis. Values are expressed as means±SDs (n = 5 per group; *<i>P</i><0.05 versus the sham group, **<i>P</i><0.01 versus the sham group; #<i>P</i><0.05 versus the I/R group, and ##<i>P</i><0.01 versus the I/R group).