Fig 6. Representative fluorescent images of implanted PKH26 labeled UC MSCs within the SST and quantification of the injected cells at 3 hours and two and four weeks.

(A): Implanted UC MSCs with DAPI and PKH26 dye of the tendon (magnification; X200 and X400). (B): The number of the injected UC MSCs per area (mm²). Bar charts present mean ± standard deviation; statistically significant at p < .05. Abbreviations: DAPI, 4′,6-diamidino-2-phenylindole; UC MSCs, umbilical cord derived mesenchymal stem cells.