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QDHX decoction is an effective traditional Chinese medicine that has been used to treat ALI, a disease characterized by pulmonary edema and inflammation. In this study, the aim is to elucidate the molecular mechanisms of QDHX decoction on improving the alveolar-capillary membrane permeability and alleviating inflammatory response. The BALB/c mice were divided into five groups including the control group, ALI group, ALI + low-dose QDHX decoction, ALI + high-dose QDHX decoction, and ALI + dexamethasone. When the animals were sacrificed, the pathology and wet/dry of lung tissue were tested and confirmed Ali model, the LDH and nucleated cells in BALF, and TNF- α  and IL-1 β  in serum;  α -ENaC and AQP-1 in lung tissue were examined. In the results, QDHX decoction downregulated the cytokine such as TNF- α  and IL-1 β , reduced the nucleated cells, and some biochemical parameters of the BALF. It also ameliorated the ENaC- α  and AQP-1 expression induced by LPS in primary epithelial cells. These findings may provide new insights into the application of QDHX decoction for the prevention and treatment of LPS-related ALI.

Qidonghuoxue Decoction Ameliorates Pulmonary Edema in Acute Lung Injury Mice through the Upregulation of Epithelial Sodium Channel and Aquaporin-1