Fig. 3. Quantitative evaluation of the colonization of muscle grafts by host myogenic cells: results of six independent 0 to GFP transplantation experiments. Numbers of GFP-positive fibres in the graft were counted in eight to 10 sections in segments of 250 µm across the section and plotted as a function of the distance from the host/graft (h/g) border; symbols indicate average numbers between proximal and distal counts, with ends of bars indicating proximal and distal averages. The experiment with 77 days regeneration time is identical to the one shown in Fig. 2A-D. No immigration was observed in short-term experiments (filled symbols).

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