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Abstract Title:

Asiatic Acid Inhibits Lipopolysaccharide-Induced Acute Lung Injury in Mice.

Abstract Source:

Inflammation. 2016 Oct ;39(5):1642-8. PMID: 27395046

Abstract Author(s):

Zhiling Li, Xianzhong Xiao, Mingshi Yang

Article Affiliation:

Zhiling Li

Abstract:

Asiatic acid (AA), a major triterpene isolated from Centella asiatica (L.) Urban, is known to exert various pharmacological activities, including anti-inflammatory and antioxidant effects. The aim of this study was to evaluate the anti-inflammatory effects of AA on lipopolysaccharide (LPS)-induced acute lung injury (ALI) and clarify the underlying mechanisms. Lung pathological changes were assessed by H&E staining. The myeloperoxidase (MPO) activity was detected by MPO assay. The levels of inflammatory cytokines were measured by ELISA. TLR4 and NF-kB expression was detected by Western blot analysis. AA obviously inhibited LPS-induced lung histopathological changes, MPO activity, and inflammatory cell numbers in bronchoalveolar lavage fluid (BALF). Treatment of AA also inhibited LPS-induced TNF-α, IL-6, and IL-1β production. Furthermore, Western blot analysis showed that AA inhibited LPS-induced TLR4 expression and NF-kB activation. In conclusion, AA inhibited LPS-induced ALI in mice by inhibiting inflammatory cytokine production, which is mediated via blocking of the TLR4/NF-kB signaling pathway.

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Sayer Ji
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