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Enhanced green fluorescent protein-labeled hMSCs from IHD patients (hMSC group: 2 \u00d7 10<jats:sup>5<\/jats:sup>cells in 20 \u03bcl, n = 12) or vehicle only (medium group: n = 14) were injected into infarcted myocardium of NOD\/ scid mice. Sham-operated mice were used as the control ( n = 10). Cardiac anatomy and function were serially assessed using 9.4-T magnetic resonance imaging (MRI); 2 wk after cell transplantation, immunohistological analysis was performed. At day 2, delayed-enhancement MRI showed no difference in myocardial infarction (MI) size between the hMSC and medium groups (33 \u00b1 2% vs. 36 \u00b1 2%; P = not significant). A comparable increase in left ventricular (LV) volume and decrease in ejection fraction (EF) was observed in both MI groups. However, at day 14, EF was higher in the hMSC than in the medium group (24 \u00b1 3% vs. 16 \u00b1 2%; P &lt; 0.05). This was accompanied by increased vascularity and reduced thinning of the infarct scar. Engrafted hMSCs (4.1 \u00b1 0.3% of injected cells) expressed von Willebrand factor (16.9 \u00b1 2.7%) but no stringent cardiac or smooth muscle markers. hMSCs from patients with IHD engraft in infarcted mouse myocardium and preserve LV function 2 wk after AMI, potentially through an enhancement of scar vascularity and a reduction of wall thinning.<\/jats:p>","DOI":"10.1152\/ajpheart.00365.2007","type":"journal-article","created":{"date-parts":[[2007,7,21]],"date-time":"2007-07-21T00:44:26Z","timestamp":1184978666000},"page":"H2438-H2447","source":"Crossref","is-referenced-by-count":47,"title":["Mesenchymal stem cells from ischemic heart disease patients improve left ventricular function after acute myocardial infarction"],"prefix":"10.1152","volume":"293","author":[{"given":"Robert W.","family":"Grauss","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Elizabeth M.","family":"Winter","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"John","family":"van Tuyn","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Dani\u00ebl A.","family":"Pijnappels","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rebecca Vicente","family":"Steijn","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bianca","family":"Hogers","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rob J.","family":"van der Geest","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Antoine A. 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