Figure 4: Ulinastatin improved intestinal cell survival in sepsis. A: Reduced apoptosis in septic rats with ulinastatin treatment was detected by TUNEL assay. Arrows indicate TUNEL positive nuclei (brown). Scale bar = 100μm. B: The bar chart summarizes the number of apoptotic nuclei in sham and septic rats with or without UTI treatment. C: The bar chart shows caspase 3 activity in sham and septic rats with or without UTI treatment. SP, saline; UTI, ulinastatin. Data are mean ± SEM, n = 6 per group.