Cardiac HMGA1-overexpression mice subjected to the treatment of LPS exhibited cardiac dysfunction. (A) Immunoblots for HMGA1 and GAPDH following intramyocardial injection of AAV9-GFP or AAV9-HMGA1 vector(n=6) and HMGA1 expression was normalized to GAPDH.(B) Echocardiographic analysis of left ventricular ejection fraction (LVEF), left ventricular fractional shortening (LVFS), left ventricular end-systolic diameter (LVESD), left ventricular end-diastolic diameter (LVEDD) and heart rate(HR) 6h after injection of saline or LPS(n=10). (C) RT-PCR for mRNA level of inflammatory related genes in heart tissue, such as TNF-α, IL-1, IL-6 (n=6). (D) TUNEL staining showed the level of cell apoptosis in mouse heart tissue. (E) Representative western blotting images of the apoptosis-related proteins, including BAX, Bcl-2 and Cytochrome C. and the protein expression levels were normalized to GAPDH (n=6). *P<0.05, vs. CON group. #P<0.05, vs. LPS group. The data are expressed as the mean±SD and were compared by one-way ANOVA with Tukey post hoc analysis.