血必净对急性胰腺炎大鼠血清中TNF-α、IL-1β和IL-6浓度的影响

Protective effect of ulinastatin combined with Xuebijing injection against intestinal mucosa injury in rats with seawater-immersed open abdominal injury

AIM: To investigate the protective effect of ulinastatin combined with Xuebijing injection against intestinal mucosa injury in rats with seawater-immersed open abdominal injury.

METHODS: A total of 104 male Wistar rats were randomly divided into 5 groups that consisted of a normal control group (n = 8), a normal saline treated group (n = 24), a ulinastatin treated group (n = 24), a Xuebijing injection treated group (n = 24), and a ulinastatin plus xuebijing injection group (n = 24). Except for the normal control group, the other groups were further divided into three subgroups for testing at 1, 3 and 6 h after operation. Blood and intestinal tissues were obtained at different time points after operation. Histopathological changes of the ileum were observed. The contents of tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6) and endotoxin (ET) in plasma were determined by enzyme-linked immunosorbent assay (ELISA), and the activities or contents of nuclear transcription factor-κB (NF-κB), malondialdehyde (MDA), superoxide dismutase (SOD), diamine oxidase (DAO) and reactive oxygen species (ROS) in intestinal tissues were measured by non-radioactive electrophoretic mobility shift assay (EMSA), biochemical methods and 2',7'-dichlorofluorescin diacetate (DCFH-DA) staining.

RESULTS: Compared with the normal saline treated group, the contents of DAO (13.64 U/mL ± 1.08 U/mL, 13.87 U/mL ± 1.19 U/mL vs 17.06 U/mL ± 1.56 U/mL, P < 0.05), ET (0.635 eU/L ± 0.037 eU/L, 0.604 eU/L ± 0.027 eU/L vs 0.728 eU/L ± 0.038 eU/L, P < 0.01), TNF-α (122.10 pg/mL ± 9.72 pg/mL, 121.93 pg/mL ± 8.67 pg/mL vs 143.89 pg/mL ± 8.13 pg/mL, P < 0.01), IL-6 (261.60 pg/mL ± 8.73 pg/mL, 268.06 pg/mL ± 6.87 pg/mL vs 293.42 pg/mL ± 10.44 pg/mL, P < 0.01) in plasma and the activities or contents of NF-κB p65 (122.53 ± 7.02, 98.61 ± 7.86 vs 202.60 ± 8.06, P < 0.01), MDA (5.29 nmol/mg ± 0.44 nmol/mg, 5.26 nmol/mg ± 0.42 nmol/mg vs 6.40 nmol/mg ± 0.53 nmol/mg, P < 0.01) and ROS (83.72 mg/mL ± 2.89 mg/mL, 74.69 mg/mL ± 2.94 mg/mL vs 130.13 mg/mL ± 3.89 mg/mL, P < 0.01) in intestinal tissues at 6 h significantly decreased, while the activities or contents of SOD at 6 h (75.34 U/mg ± 4.60 U/mg, 75.01 U/mg ± 4.22 U/mg vs 67.38 U/mg ± 4.20 U/mg, P < 0.05) significantly increased in the ulinastatin treated group and Xuebijing injection treated group. The levels of DAO, ET, TNF-α, IL-6, MDA, ROS, and NF-κB p65 in the combination group were significantly lower than those in the ulinastatin treated group (11.39 U/mL ± 1.23 U/mL vs 13.64 U/mL ± 1.08 U/mL, 0.528 eU/L ± 0.036 eU/L vs 0.635 eU/L ± 0.037 eU/L, 110.40 pg/mL ± 5.99 pg/mL vs 122.10 pg/mL ± 9.72 pg/mL, 213.88 pg/mL ± 11.69 pg/mL vs 261.60 pg/mL ± 8.73 pg/mL, 4.74 nmol/mg ± 0.25 nmol/mg vs 5.29 nmol/mg ± 0.44 nmol/mg, 56.31 mg/mL ± 3.61 mg/mL vs 83.72 mg/mL ± 2.89 mg/mL, 61.05 ± 6.69 vs 122.53 ± 7.02, P < 0.05), while the level of SOD was higher in the combination group. There were no significant differences in the above parameters between the ulinastatin treated group and Xuebijing injection treated group.

CONCLUSION: Ulinastatin combined with Xuebijing injection has a protective effect against intestinal mucosa injury in rats with seawater immersed open abdominal injury possibly by inhibiting NF-κB activity and inflammatory cytokines and reducing oxidative stress.