Aim To explore the effect of Tanxiang Qingyan Tablets on rat model with chronic bronchitisand the effect of MyD88/NF-κB/ICAM-1 signaling pathway expression in bronchopulmonary tissues of rats.Methods A rat model of chronic bronchitis was established by smoking method combined with lipopolysaccharide(LPS,2g·L-1)tracheal injection.The rats were randomly divided into normal group,sham operation group,model group,and positive drug(Guilong Ruikening tablets)1 g·kg-1)group,Tanxiang Qingyan Tablet high,medium and low dose(1.44,0.72,0.36 g·kg-1)gro...