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Abstract Title:

Anti-hyperuricemic and anti-gouty arthritis activities of polysaccharide purified from Lonicera japonica in model rats.

Abstract Source:

Int J Biol Macromol. 2019 Feb 15 ;123:801-809. Epub 2018 Nov 13. PMID: 30445085

Abstract Author(s):

Qiuxuan Yang, Qilong Wang, Wenwen Deng, Congyong Sun, Qiuyu Wei, Michael Adu-Frimpong, Jixiang Shi, Jiangnan Yu, Ximing Xu

Article Affiliation:

Qiuxuan Yang

Abstract:

In this present study, we investigated the anti-hyperuricemic and anti-gouty arthritis effect of a puried water-soluble polysaccharide (LJP-1) obtained from Lonicera japonica. A series of characterization of the purified polysaccharide were carried out in this paper. Monosaccharide analysis showed that LJP-1 composed of glucuronic acid, glucose, galactose, arabinose, and xylose at the ratio of 2.43:1:2.09:1.95:1.96, respectively. The estimated molecular weight of LJP-1 was 17.5 kDa. LJP-1 belonged to pyranose and possessed α- and β -glycosidic configurations. Congo red test showed that LJP-1 had a spatial triple helix structure. In pharmacodynamic experiments, the anti-hyperuricemic activity of LJP-1 was studied using hyperuricemic SD rat model induced via potassium oxonate and hypoxanthine. The result showed that LJP-1 could obviously decrease the serum uric acid level and suppress xanthine oxidase (XOD) activity. Moreover, in the gouty arthritis model established by sodium urate crystals, the degree of swelling of the ankle joint, IL-1β, IL-6, TNF-α and COX-2-related inflammatory factors levels in murine serum all declined. Taken together, these results demonstrated that LJP-1 has anti-gouty arthritis effect. Therefore, LJP-1 could serve as a promising candidate for developing novel natural anti-gouty agent.

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