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BMSCs-exosomes reduce cortical lesion post-TBI. (A) H&E staining of brain tissue from the TBI + PBS group at 14 days post-TBI showed serious tissue lesion, whereas reduced tissue lesion was observed in the TBI + EXO group. (B) The mean (±SEM) of cortical lesion area (mm2) after controlled cortical impact injury. ∗∗P < 0.01 versus the TBI + PBS group (n = 4).
