HDAC gene transcription analysis in sham, E. coli-infected and intraperitoneal vehicle, and E. coli-infected plus intraperitoneal TSA (A), and sham, E. coli-infected plus endotracheal control-siRNA, and E. coli-infected plus endotracheal HDAC7-siRNA (B). (* denotes statistical significance p<0.05 compared to sham; # denotes statistical significance p<0.05 between E. coli and E. coli+TSA or between E. coli+control-siRNA and E. coli+HDAC7-siRNA respectively).