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. 2023 May 8;13(9):2811–2824. doi: 10.7150/thno.84665

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Healing mechanism of a full-thickness skin injury was analyzed by immunofluorescence staining and immunohistochemical staining. (A) Representative images of Ki67 (green fluorescence) and CD31 (green fluorescence) immunofluorescence staining at day 7 after different treatments. (B) Quantification results of positive stained cells of Ki67 and CD31-positive vesselsin wounds in different groups at day 7. Representative immunohistochemistry staining images (C) and quantification results (D) of VEGF, and α-SMA at day 10 after different treatments. All data were presented as mean ± SD (n = 5). **** for P < 0.0001.