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Inflammatory paracrine response to stem cell therapy. The presence of neutrophils and macrophages on myocardial tissue (lymphohistiocytic infiltration) heals and prevents ventricular remodeling at stem cell injection sites. (A) Endocardium; (B) Myocardium; (C) Epicardium; (D) Coronary blood vessel; (E) Pericardial cavity; (F) Parietal pericardium; (G) Fibrous pericardium.
