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Default [Anti-inflammatory mechanism of Crepis crocea based on NF-?B signaling pathway and ~1H-NMR metabonomics].

[Anti-inflammatory mechanism of Crepis crocea based on NF-?B signaling pathway and ~1H-NMR metabonomics].

Related Articles [Anti-inflammatory mechanism of Crepis crocea based on NF-?B signaling pathway and ~1H-NMR metabonomics].

Zhongguo Zhong Yao Za Zhi. 2020 Feb;45(4):946-954

Authors: Miao YL, He P, Zhang WX, Zhang WZ, Feng M, Ni Y

Abstract
Based on ~1H-NMR metabonomics technique and Western blot assay, the anti-inflammatory mechanism of Crepis crocea was discussed. In this study, male SD rats were treated with water extract(2.5 gkg~(-1)) and dexamethasone acetate(6.2510~(-4) gkg~(-1)) for one week, and the inflammation model was induced by lipopolysaccharide(LPS). Then the counts of inflammatory cells white blood ceel(WBC), eosinophil(EO), lymphocyte(LY), basophils(BA) and neutrophils(NE) in whole blood of rats were observed. The levels of serum inflammatory factors tumor necrosis factor-?(TNF-?), interleukin-1?(IL-1?), IL-6 and the expression of nuclear factor-?B(NF-?B) signaling pathway p65 and p-I?B? proteins in lung tissues were detected, and the change rules of serum endogenous metabolites were analyzed by ~1H-NMR metabonomics technique. The levels of TNF-?, IL-1?, IL-6 and NF-?B signaling pathway p65 and p-I?B? proteins were combined with ~1H-NMR metabonomics to study the anti-inflammatory mechanism of C. crocea. The results showed that the water extract of C. crocea significantly decreased the number of WBC, NE, EO, increased the number of BA and LY, decreased the levels of TNF-?, IL-1?, IL-6 and the expression of p65 and p-I?B? protein in NF-?B signaling pathway, and effectively alleviated the inflammatory symptoms. In the correlation analysis of differential metabolites regulated of C. crocea, four significant metabolites were obtained, including glycine, creatine, methionine and succinic acid. The anti-inflammatory mechanism of C. crocea may be related to the decrease of TNF-?, IL-1?, IL-6 levels and the protein expression of NF-?B signaling pathway, as well as the regulation of glycine, creatine, methionine and succinic acid metabolism.


PMID: 32237498 [PubMed - in process]



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