An Experimental Study of the Interference with Chronic Bronchitis by Bilirubin

Objective To investigate the bilirubin protective effect on airway seek prevention of chronic bronchitis (chronic bronchitis), the development of new methods. Methods healthy and clean 24 male SD rats were randomly divided into control group (8), chronic bronchitis group (8) and bilirubin intervention group (8). Chronic bronchitis group: intratracheal instillation of lipopolysaccharide (LPS, a concentration of 1g / L of 200μl) was prepared chronic bronchitis model. Control group: intratracheal instillation of saline. Bilirubin intervention group: chronic bronchitis in the preparation of model 2 hours before giving indirect bilirubin administered 20mg/kg / day, once a day, a total of 21 days. Three groups were detected in the first 22 days drawn. Detection indicators: (1) serum total bilirubin; (2) bronchial lavage fluid (BALF) in white blood cell (WBC), tumor necrosis factor (TNF)-α and malondialdehyde (MDA) determination; (3) Immunohistochemical observation intercellular adhesion molecule (ICAM) -1 in bronchial epithelial cells; (4) histology. Results The serum total bilirubin, in the chronic bronchitis group was slightly lower than the control group, but the difference was not significant (P> 0.05); bilirubin intervention group was significantly higher than that of chronic bronchitis (P <0.051. BALF in the WBC , TNF-α and MDA, in the western mountains are like chronic bronchitis University Master leather ingredients and in the control group (P