Fig. 5From: MicroRNA engineered umbilical cord stem cell-derived exosomes direct tendon regeneration by mTOR signalingHUMSC-Exos improved the performance of immunostaining of tendon regeneration in vivo. A Representative immunostaining staining of COL1A1. B Representative immunostaining staining of TNMD. C Quantification of COL1A1 staining. D Quantification of TNMD staining (n = 6 per group). Scale bar: 100 μm. ***P < 0.001Back to article page