Inhibition of xanthine oxidase by hydroxylated anthraquinones and related compounds

Shiow Yunn Sheu, Hsüch Ching Chiang

研究成果: 雜誌貢獻文章同行評審

17 引文 斯高帕斯(Scopus)

摘要

Eighteen anthraquinones and related compounds were tested for their inhibitory effects on xanthine oxidase. The enzyme, xanthine oxidase catalyses the oxidation of hypoxanthine to xanthine and of xanthine to uric acid, which has a λmax of 295 nm, forming the basis for a spectrophotometric assay of the activity of xanthine oxidase. The results showed that anthrarobin and purpurin showed moderate effects on xanthine oxidase inhibition (IC50 = 68.35 and 105.13 μM; Ki = 122.38 mid 130.49 μM respectively), and both of them induced mixed type (competitive-non-competitive) inhibition with respect to the substrate xanthine.

原文英語
頁(從 - 到)3293-3297
頁數5
期刊Anticancer Research
17
發行號5 A
出版狀態已發佈 - 9月 1997

ASJC Scopus subject areas

  • 腫瘤科
  • 癌症研究

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