Hypouricemic Effect of Ethanol Extract of Aster glehni Leaves in Potassium Oxonate-Induced Hyperuricemic Rats

• Published in: Clinical nutrition research Vol. 7; no. 2; pp. 126 - 135
• Main Authors: Park, Ji-Eun, Yeom, Zia, Park, Keun-Tae, Han, Eun Hye, Yu, Heui Jong, Kang, Hyo Seok, Lim, Young-Hee
• Format: Journal Article
• Language: English
• Published: Korea (South) Korean Society of Clinical Nutrition 01.04.2018; 한국임상영양학회
• Subjects: Original; 생활과학; Serum uric acid; Xanthine oxidase; Hyperuricemia; Aster glehni
• ISSN: 2287-3732; 2287-3740
• DOI: 10.7762/cnr.2018.7.2.126

The prevalence of gout is increasing worldwide, and control of serum uric acid level has been regarded as one of the therapeutic methods for gout. Inhibition of xanthine oxidase (XO) activity which can oxidize hypoxanthine to uric acid has been commonly proposed to decrease serum uric acid level. The aim of this study was to demonstrate the hypouricemic effect of ethanol extract of leaves (EAG) by in vitro and in vivo study in potassium oxonate (PO)-induced hyperuricemic rats. EAG possessed 132.5 ± 6.8 mg QE/g of total flavonoid and showed antioxidant activity. EAG showed in vitro and in vivo inhibitory activity against XO and significantly decreased serum uric acid level in PO-induced hyperuricemic rats without liver toxicity. These results show that EAG significantly attenuates hyperuricemia by inhibiting XO activity, which resulted in the decrease of serum uric acid level. Therefore, EAG might possess a potential therapeutic ability for improving gout.