[Experimental study of ta chengchi tang decoction for relieving lung injury during acute necrotizing pancreatitis].

The objectives of the study were to investigate the changes of leukocyte adhesiveness and tumor necrosis factor (TNF) in the early stage of acute necrotizing pancreatitis (ANP), to go further into the relation of those changes to lung injury of ANP, and to evaluate the prohibitive effect of ta chengchi tang Decoction on leukocyte adhesion and TNF secretion. 14 canines were randomly divided into 3 groups. The treatment group (n = 5): experimental ANP model treated with ta chengchi tang Decoction; the saline control group (n = 5): experimental ANP model treated with normal saline; and the sham operative group (n = 4). The adhesion of leukocytes to vascular endothelial cells and TNF activities in serum and in bronchi-alveolar lavage fluid (BALF) were observed and measured, and the degrees of lung injury were assessed. The results showed that the adhesiveness of leukocytes was markedly increased and the activities of TNF were elevated in peripheral blood and BALF during ANP; that the leukocyte adhesiveness in the treatment group was weaker than that in the saline group (P < 0.05) and the serum and BALF TNF activities were also significantly lower than those in the saline group (P < 0.01); and that the degrees of lung injury in the treatment group were significantly milder than those in the saline group. These indicate that the increased leukocyte adhesiveness and hypersecretion of TNF take part in the pathogenesis of lung injury in ANP, and ta chengchi tang Decoction is demonstrated an efficacious medicine for alleviating the degree of lung injury mediated by both the leukocyte adhesion and TNF in ANP.