Transplantation efficacy demonstrated by the percentage of human nuclei in the transplanted muscles.

The number of cells of human origin was divided by the number of total nuclei stained by DAPI. The result also appears in Figures 4C and 4D. SD: standard deviation. ND: not detected. *, ** indicate the cell numbers transplanted at the site: * 5.0×105 cells/site, ** 1.0×105 cells/site. †: One mouse transplanted with 253G4-derived cells died accidentally before analysis. NS: statistically not significant.