No differences were observed in LV area (WT: 8.2±0.6mm2, FAP-KO: 8.8±0.6mm2, n.s.), LV cavity area (WT: 18.4±2.3mm2, FAP-KO: 14.6±1.2mm2, n.s.)and septum thickness after MI at 28 days after MI (Fig 1A). The gene discussed is FAP; the disease is myocardial infarction.