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Effect of celastrol treatment on MMP-9 expression at 72 h after SAH induction. (A) Representative WB showing levels of MMP-9 in the ipsilateral cortex of each group at 72 h after SAH induction. (B) Quantifications of band densities of MMP-9. The densities of the protein bands were analyzed and normalized to β-actin, and compared to the mean value of the sham group. Data were presented as mean±SEM. n = 6. **P < 0.01.
