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Myocardial regeneration. A: Healed myocardial infarct (collagen accumulation, blue). A thin layer of spared myocytes is present in the subendocardium. B and C: Band of regenerated myocytes within the infarct (MHC: myosin-heavy-chain, red; arrowheads) following GF-activation of resident CPCs (B) or treatment with EGFP-positive-CPCs (C: EGFP, green). The areas included in the rectangles are shown at higher magnification in the adjacent panels.
