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Fig. 5. Laser Doppler blood-flow images. Representative images of control (buffer or fibroblast injected) and diabetic animals injected with EpPCs. Mice were monitored before the surgery to verify the integrity of the blood flow and every other day after the surgery to evaluate the restoration of the blood flow. Dark blue areas represent area with no flow and white areas represent regions with the highest flow. Notice the lack of flow immediately after the surgery. After 12 days, the flux was restored to 33% in the control buffer-injected animals, compared with 55% in the progenitor-cell-injected animals.