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MSCs improve TBI repair. (A) Injury recovery (dashed line box) of brain tissues was observed by H&E staining after tail vein injection of 1 × 106 unlabeled and NC-labeled MSCs. The whole hemispheric tissue was shown in the middle lane, and the injury site was enlarged in the right lane. (B) Injured area was quantified in brain tissues of mice treated with unlabeled and labeled MSCs and compared with TBI alone (*p < 0.05, **p < 0.01).
