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Abstract Title:

Patchouli alcohol protects against lipopolysaccharide-induced acute lung injury in mice.

Abstract Source:

J Surg Res. 2015 Apr ;194(2):537-43. Epub 2014 Oct 22. PMID: 25519986

Abstract Author(s):

Jin-Long Yu, Xiao-Shi Zhang, Xia Xue, Rong-Mei Wang

Article Affiliation:

Jin-Long Yu

Abstract:

BACKGROUND: Patchouli alcohol (PA), a natural compound isolated from Pogostemon cablin, has been reported to possess anti-inflammatory activity. However, the effects of PA on lipopolysaccharide (LPS)-induced acute lung injury (ALI) have not yet been studied. In the present study, we investigated in vivo the effect of PA on ALI induced by LPS.

METHODS: Mice were administrated intranasally with LPS to induce lung injury. PA was administrated intraperitoneally 1 h before or after the LPS challenge.

RESULTS: The results showed that PA significantly decreased the wet-to-dry weight ratio of lungs and the number of total cells, neutrophils, and macrophages in bronchoalveolar lavage fluid at 7 h after the LPS challenge. In addition, PA also suppressed the production of inflammatory cytokines, such as tumor necrosis factor-α, interleukin-1β, and interleukin-6 in bronchoalveolar lavage fluid. Furthermore, Western blot analysis showed that PA inhibited the phosphorylation of IκB-α andp65 nuclear factor κB (NF-κB) induced by LPS.

CONCLUSIONS: Our results suggest that the anti-inflammatory effects of PA against LPS-induced ALI may be due to its ability to inhibit NF-κB signaling pathways.

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Sayer Ji
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