Journal
CHINESE JOURNAL OF CHEMISTRY
Volume 35, Issue 7, Pages 1117-1124Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cjoc.201600810
Keywords
Gout; Selaginella tamariscina; metabonomic; UPLC-ESI-QTOF/MS
Categories
Funding
- National Natural Science Foundation of China [81303280, 81573574, 81530094, 81473537, 31670356]
- Natural Science Foundation of Jilin Province [20150101077JC]
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Gout is a disease of purine metabolic disorders which results from long-term hyperuricemia and the sodium urate deposition in and around the joints. Selaginella tamariscina (ST) is an important traditional Chinese herbal medicine and is used for the treatment of gout and hyperuricemia. In this study, the rat model of acute gout with hyperuricemia was established by intraperitoneal injection of xanthine and oxonic acid potassium salt and articular injection monosodium urate (MSU). The effect of ST in the treatment of gout was investigated by measuring joint swelling, the expression of IL-1 in serum and histological changes of joint by haematoxylin eosin (H&E) staining. Subsequently, urine metabolomics analysis for biomarkers discovery in acute gout with hyperuricemia rats was performed by the ultra-performance liquid chromatography-electrospray ionization quadruple time-of-flight mass spectrometry (UPLC-ESI-QTOF/MS) combined with chemometric approach. Principal component analysis (PCA) and orthogonal partial least squares-discriminant analysis (OPLS-DA) were used to detect potential biomarkers. A total of 18 potential biomarkers were identified mainly including tryptophan metabolism; tyrosine metabolism; lysine methylation; pyrimidine metabolism; purine metabolism; TCA cycle and fatty acid metabolisms. This study indicates that ST could efficiently ameliorate the disease of acute gout with hyperuricemia in rats. The related metabolic biomarkers could provide useful information and the metabolic mechanism could be used for further study about the model of acute gout with hyperuricemia in rats.
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