摘要
Thirteen phenolic 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 λmax of 295 nm, forming the basis for a spectrophotometric assay of the activity of xanthine oxidase. The results showed that purpurogallin and silymarin group displayed the inhibitory effects on xanthine oxidase (IC50 = 2.96 ± 0.12 and 27.58 ± 3.48 μM, respectively). Their apparent inhibition constants (Ki) were 1.16 and 5.85 μM, and induced uncompetitive and mixed type (non-competitive-uncompetitive) inhibitions respectively with respect to the substrate xanthine.
| 原文 | 英語 |
|---|---|
| 頁（從 - 到） | 263-267 |
| 頁數 | 5 |
| 期刊 | Anticancer Research |
| 卷 | 18 |
| 發行號 | 1 A |
| 出版狀態 | 已發佈 - 一月 1998 |
ASJC Scopus subject areas
- Cancer Research
- Oncology
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引用此
Sheu, S. Y., Lai, C. H., & Chiang, H. C. (1998). Inhibition of xanthine oxidase by purpurogallin and silymarin group. Anticancer Research, 18(1 A), 263-267.