Tissue sections obtained from the brains of 72-h post-injury mice were used to examine cell death with an In-Situ Cell Death Detection Kit, as previously described (Cuello-Carrión and Ciocca, 1999). After being warmed to RT for 30 min, the sections were fixed in acetone for 8 min at 4°C. After being rinsed with PBS, the sections were treated with 3% BSA for 30 min at 37°C before being incubated with TUNEL reaction mixture in the dark for 90 min at 37°C. The nuclei were counterstained with DAPI for 5 min.
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