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Abstract Title:

[The anti-inflammatory effect of hesperetin on lung damage induced by paraquat in rats].

Abstract Source:

Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi. 2018 May 20 ;36(5):336-342. PMID: 29996377

Abstract Author(s):

Y Jang, Y Q Chen, J Zhang, Q Jia, X Geng, G C Yu, X G Zhang

Article Affiliation:

Y Jang

Abstract:

To investigate the anti-inflammatory effect of hesperetin (HSP) on lung damage induced by paraquat (PQ) in rats by detecting the levels of inflammatory makers in rat lung tissues.140 Wistar male rats were randomly divided into negative control group, HSP control group, HSP control group, paraquat model group, pirfenidone (PDF) positive control group, and 100, 200, 400 mg/kg HSP treatment groups. All groups were exposed to 50mg/kg paraquat by oral gavage except for the negative control group and HSP control group. After 24 hours, the rats in each group were given drug intervention once daily. 10 rats were randomly sacrificed at 7th day and 28th day after exposure to paraquat respectively. 3 rats were randomly selected from them and HE, Masson staining were used to observe the pathological changes in the lungs of each group. Each group randomly selected 6 rats at two time points to detect the levels of TGF-β(1), TNF-α, IL-4, IL-10, IL-1β and IFN-γ in rat lung tissues.Histopathological examination found that the lung injury were reduced in the rats of PDF positive control group and all HSP treatment groups. Compared with the negative control group, the levels of TGF-β1, IL-1β, TNF-α, IL-4, and IL-10 in rat lung tissues were significantly increased (<0.05,<0.01) after PQ exposure at two points in time, and there was no significant difference in the level of IFN-γ in lung tissues compared with the negative control group (>0.05) . The levels of TGF-β1, IL-1β, IL-4, IL-10 and TNF-α in the lung tissues of rats on the 7th day in different dose treatment groups of HSP were reduced compared with those in the PQ model group with varying degrees (<0.05,<0.01) . The level of IFN-γ in lung tissues of rats were not significantly different from that of model group (>0.05) . The levels of TGF-β(1) and TNF-α in lung tissue of rats on the 28th day in PDF positive control group and different dose treatment groups of HSP were reduced compared with those in the PQ model group with varying degrees (<0.05,<0.01). The levels of IFN-γ in the rat lung tissues were increased compared with those in the PQ model group (<0.05). Besides, there were no significant in the levels of IL-1β, IL-4 and IL-10 in lung tissues compared with PQ model group (>0.05).HSP can reduce lung damage induced by PQ in rats by inhibiting the release of inflammatory factors and promoting the secretion of anti-inflammatory factors.

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Sayer Ji
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