IL13 and acute respiratory distress syndrome: Wang et al. [35, 36] also found that QBD can effectively regulate the expression levels of inflammatory cytokines IL-1β and anti-inflammatory cytokines IL-13 in blood of rats with ALI induced by LPS, promote the dynamic balance of inflammatory and anti-inflammatory cytokines, reduce the total number of white blood cells in bronchoalveolar lavage fluid, improve alveolar injury, inflammatory cell infiltration and erythrocyte exudation, etc., thereby reducing inflammatory cell infiltration in the lung.