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標題: Hypouricemic effects of Mesona procumbens Hemsl. through modulating xanthine oxidase activity in vitro and in vivo
作者: Jhang, Jhih-Jia
Ong, Jia-Wei
Lu, Chi-Cheng
Hsu, Chin-Lin
Lin, Jia-Hong
Liao, Jiunn-Wang
Yen, Gow-Chin
Project: Food & function, Volume 7, Issue 10, Page(s) 4239-4246.
Uric acid is a metabolite obtained from purine by xanthine oxidase activity (XO) and high levels of serum uric acid leads to hyperuricemia and gout. Mesona procumbens Hemsl. has been used as a healthy beverage and a traditional remedy. In this study, the hypouricemic effects of M. procumbens extracts were evaluated in vitro and in vivo. The 50% ethanol extract of M. procumbens (EE50) showed the strongest inhibitory effect on monosodium urate (MSU)-induced XO activity in THP-1 cells. However, the phenolics and flavonoids in EE50 may not serve as inhibitors of XO. EE50 prevented an increase in the serum uric acid level in potassium oxonate (PO)-challenged ICR mice and streptozocin (STZ)-induced SD rats. EE50 down-regulated STZ-induced liver XO activity, and it restored renal OAT1 and urate transporter expression. STZ-induced renal interleukin-1β (IL-1β) and the tumor necrosis factor-α (TNF-α) level were inhibited by EE50 treatment. EE50 exhibits the hypouricemic effect via down-regulation of XO activity, suggesting that EE50 has potential to improve hyperuricemia and its complications.
DOI: 10.1039/c6fo00822d
Appears in Collections:食品暨應用生物科技學系

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