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Immunohistochemical staining of 8-hydroxy-2′-deoxyguanosine assay for DNA oxidative damage of marrow bone hematopoietic cells in femoral heads of rabbits in groups (A) S, (B) E an (C) C at week 4 after modeling (original magnification, ×200). The black arrows represent positive hematopoietic cells. It was evident that there were more positive hematopoietic cells in group S. Group S, steroid group; group E, vitamin E-treated group; group C, control group.
