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HucMSC exosomes inhibit tendon injury in vivo (A) Exemplary histology of tendons using hematoxylin & eosin (H&E) staining (cellularity) and (B) immunohistological staining for Ki67, with (C) ARHGAP5 expression and RhoA activity determined in Achilles tendon tissues at 7 days post-surgery. Scale bar=100 μm. Data are expressed as the mean±SD (n=6). ***P<0.001 compared with the control. ##P<0.01, ###P<0.001 compared with the model.
