Fig 6.

Capillary density of the infarct and peri-infarct regions in various groups by immunohistochemical staining for CD31 at 1 week after cell transplantation. (A, E) CM group; (B, F) LLLI + CM group; (C, G) BMSC group; (D, H) the LLLI + BMSC group; (I) Significantly increased number of blood vessels was observed in both infarcted and peri-infarcted region in the BMSC group. Further enhanced angiogenesis was observed in the LLLI + BMSC group. Values were expressed as mean ± S.D. **P < 0.01 versus CM group; **P < 0.01 versus LLLI + CM group; ^†P < 0.05 versus BMSC group. Arrows indicated the CD31⁺ cells.