Therapeutic Effect of the Tuber of Alisma orientale on Lipopolysaccharide-Induced Acute Lung Injury

Kyun Ha Kim, Min Jung Kwun, Jun-Yong Choi, Kyung-Seop Ahn, Sei-Ryang Oh, Yong Gyu Lee, John W. Christman, Ruxana T. Sadikot, Chang Woo Han, and Myungsoo Joo

Abstract

Although Alisma orientale, an ethnic herb, has been prescribed for treating various diseases in Asian traditional medicine, experimental evidence to support its therapeutic effects is lacking. Here, we sought to determine whether A. orientale has a therapeutic effect on acute lung injury (ALI). Ethanol extract of the tuber of A. orientale (EEAO) was prepared and fingerprinted by HPLC for its constituents. Mice received an intraperitoneal (i.p.) injection of lipopolysaccharide (LPS) for the induction of ALI. At 2?h after LPS treatment, mice received an intratracheal (i.t.) spraying of various amounts of EEAO to the lung. Bioluminescence imaging of transgenic NF-κB/luciferase reporter mice shows that i.t. EEAO posttreatment suppressed lung

 Alisol acetate B was purchased from Biopurify Phytochemical Co. Ltd. (Chengdu, Sichuan, China).