CD34 and infarction: Fig 6E–6G shows representative images of collagen staining deposited between the cells of the muscle tissue in the border area of the post-infarction scar. In mice injected with CD105+CD34- cells a statistically significant reduction in the amount of deposited collagen (14.23±3.02%), compared to the control PBS- group (24.29±4.95%) (p<0.01) was observed (Fig 6H).