Anti-Hyperuricemic, Anti-Inflammatory and Analgesic Effects of Siegesbeckia orientalis L. Resulting from the Fraction with High Phenolic Content

BMC Complementary and Alternative Medicine

Research Article

MinKyun Na¹  In Hyun Hwang²  Phuong Thien Thuong³  Minh Khoi Nguyen³  Hoang Anh Nguyen⁴  Thuy Duong Nguyen⁴  Thi Kim Huyen Hoang⁴ 

[1] College of Pharmacy, Chungnam National University, Yuseong-gu, 34134, Daejeon, Republic of Korea;College of Pharmacy, Woosuk University, Wanju, 55338, Jeonbuk, Republic of Korea;Department of Pharmaceutical Analysis and Standardization, National Institute of Medicinal Materials, 3B Quang Trung, Hoan Kiem, Hanoi, Vietnam;Department of Pharmacology, Hanoi University of Pharmacy, 13 Le Thanh Tong, Hoan Kiem, Hanoi, Vietnam;

关键词: Siegesbeckia orientalis;    Anti-hyperuricemic activity;    Anti-inflammatory activity;    Analgesic activity;    Xanthine oxidase;    Caffeic acid analogues;    Flavonones;   

DOI  :  10.1186/s12906-017-1698-z

 received in 2016-08-30, accepted in 2017-03-21,  发布年份 2017

来源: Springer

【 摘 要 】

BackgroundThe medicinal plant Siegesbeckia orientalis L. has been commonly used for the treatment of acute arthritis, rheumatism, and gout in Vietnam. However, pharmacological research of this plant associated with gout has not been reported. Anti-hyperuricemic and anti-inflammatory effects were evaluated and observed for the crude ethanol extract (CEE) of S. orientalis. Retention of these biological properties was found in a n-butanol-soluble fraction (BuOH fr.) of the extract, and therefore further biological and chemical investigations were undertaken on the BuOH fr. to support the medical relevance of this plant.MethodsThe aerial part of S. orientalis was obtained in the mountainous region of Vietnam. The crude ethanol extract (CEE) and its BuOH fr. were prepared from the plant materials. Anti-hyperuricemic activities of the CEE and BuOH fr. were tested in vivo using the model oxonate-induced hyperuricemia rats through determination of serum uric acid levels and inhibitory effects on xanthine oxidase (XO) in the rat liver. Anti-inflammatory activities of the BuOH fr. were also evaluated in vivo using carrageenan-induced paw edema and urate-induced synovitis in rats. Active components of the BuOH fr. were characterized by comparison of HPLC retention time (tR) and spectroscopic data (UV, 1H–NMR) with those of reference compounds.ResultsThe CEE of S. orientalis displayed anti-hyperuricemic activity, and the BuOH fr. was found to be the most active portion of the extract. Further in vivo studies on this fraction showed 31.4% decrease of serum uric acid levels, 32.7% inhibition of xanthine oxidase (XO), 30.4% reduction of paw edema volume, symptomatic relief in urate-induced synovitis and significant analgesic effect at the dose of 120 mg/kg, as compared to the corresponding values of the control groups. Chemical analysis of the BuOH fr. revealed high phenolic content, identified as caffeic acid analogues and flavonones.ConclusionsThis study suggested that anti-hyperuricemic and anti-inflammatory mechanism of S. orientalis is related to XO inhibitory effect of the phenolic components. Our findings support the use of this plant as the treatment of gout and other inflammatory diseases.

【 授权许可】

CC BY   
© The Author(s). 2017