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. 2021 Jul 13;19:209. doi: 10.1186/s12951-021-00958-6

Fig. 6.

Fig. 6

Immunohistochemical staining and immunofluorescence images showing that exosomes from cells treated with magnetic stimulation promote osteogenesis and angiogenesis. a, b Immunohistochemical staining of the osteogenic marker OCN and immunofluorescence analysis of the osteogenic marker Rnux2. c, d Immunohistochemical staining of the angiogenic marker α-SMA and immunofluorescence analysis of the angiogenic marker CD31. Dark brown granules indicating positive staining are marked by red arrows, and white arrows mark the newly formed vessels