【摘要】 目的　探讨胆必清颗粒对实验性急性细菌性胆管炎保护作用的机理。方法　经胆管内注射 1mL大肠杆菌 ( 1× 10 8cfu·mL)引发急性细菌性胆管炎。采用硝酸还原法测定血清NO水平 ;酸滴定法测定PLA2 活性 ;放免法测定血清TNF α ,IL 6和血浆TXB2 和PGF1α水平。结果　与对照组比较 ,模型组血清NO、PLA2 、TNF和血浆TXB2 水平均明显升高 (P <0 .0 5 ) ;各胆必清治疗组的上述指标均显著降低 (P <0 .0 1)。结论　胆必清颗粒能明显抑制前炎性因子PLA2 和炎性细胞因子TNF α ,IL 6的过量产生 ,从而进一步揭示了该方剂的抗炎和屏障保护作用机理。更多还原

【Abstract】 Aim To study the mechanism of protective effects of Danbiqing granule (DBQ) on experimental acute bacterial cholangitis in rabbits. Methods The acute bacterial cholangitis was induced by injecting 1 mL of 1×10 8 cfu·mL -1 Escherchia coli suspension into common bile duit. The serum nitrous oxide (NO) levels were measured using nitric acid reductase kit. Phospholipase A 2 (PLA 2) activity was assayed by a method of acid titration (microassay). Serum tumor necrcsis factor α(TNF α), inferleukin 6 (IL 6) and plasma thromboxane B 2 (TXB 2), 6 keto platelet growth factor 1 (PGF 1α ) were determined by radioimmunoassay. Results Compared with control group, serum NO, PLA 2, TNF α, IL 6 and plasma TXB 2 levels increased significantly in model group ( P <0.01) while those of DBQ groups decreased significantly( P <0 01). Conclusion DBQ dramatically inhibits the overproduction of pro inflammatory factor PLA 2 and inflammatory cytokine. Hence, the mechanism of DBQ underlying anti inflammatory and protective effect against acute bacterial cholangitis in rabbits has been revealed.更多还原