Fig. 5.
Ang-1 enhances muscle fiber regeneration. A: eosin and hematoxylin staining of TA muscles 10 days postinjury. All injured muscles received a single injection of Ad-GFP (left) or Ad-Ang-1 (right) virus on day 4 postinjury. Black arrows point to recovered muscle fibers. Black scale bars, 100 μm. B: number of injured and recovered fibers expressed as percentage of total counted fibers (250 fibers). C: number of fibers with one to three central nuclei expressed as percentage of total counted fibers (250 fibers). D: fiber cross-sectional areas of TA muscles measured on day 10 postinjury. Values are means ± SE, n = 7 per group. #P < 0.05 compared with Ad-GFP.