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Ulinastatin-mediated inhibition of apoptosis in cerebral tissue. a Anti-caspase-3 immunostaining and TUNEL assay results in the three groups. b Optical density of caspase-3 immunostaining and numbers of TUNEL-positive cells in the three groups. TCA, traumatic cardiac arrest; UTI, ulinastatin; BL, baseline; TUNEL, terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling. *p < 0.05, **p < 0.01 vs. sham; #p < 0.05, ##p < 0.01 vs. ulinastatin
