p-Cymene protects mice against lipopolysaccharide-induced acute lung injury by inhibiting inflammatory cell activation |
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Authors: | Guanghong Xie Na Chen Lanan Wassy Soromou Fang Liu Ying Xiong Qianchao Wu Hongyu Li Haihua Feng Guowen Liu |
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Affiliation: | College of Animal Science and Veterinary Medicine, Jilin University, Changchun 130062, China. |
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Abstract: | The objective of this study was to test the hypothesis that p-cymene can attenuate acute lung injury induced by lipopolysaccharide (LPS) in vivo. In the mouse model of LPS-induced acute lung injury, intraperitoneal preconditioning with p-cymene resulted in a significant reduction of pro-inflammatory cytokines (TNF-α, IL-1β and IL-6), lung water gain, inflammatory cell infiltration, lung tissue myeloperoxidase activity. In addition, p-cymene blocked the phosphorylation of IκBα protein and mitogen-activated protein kinases (MAPK) signaling pathway activation. Histopathologic examination of lung tissue indicated that p-cymene treatment markedly decreased focal thickening, congestion, pulmonary edema, and inflammatory cells infiltration. The results showed that p-cymene had a protective effect on LPS-induced ALI in mice. |
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