Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 3293-3297 |
| Number of pages | 5 |
| Journal | Anticancer Research |
| Volume | 17 |
| Issue number | 5 A |
| Publication status | Published - Sep 1997 |
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Keywords
- Anthracene (anthrarobin)
- Anthraquinone (purpurin)
- Antibacterial
- Xanthine oxidase inhibitors
ASJC Scopus subject areas
- Cancer Research
- Oncology
Cite this
Inhibition of xanthine oxidase by hydroxylated anthraquinones and related compounds. / Sheu, Shiow Yunn; Chiang, Hsüch Ching.
In: Anticancer Research, Vol. 17, No. 5 A, 09.1997, p. 3293-3297.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Inhibition of xanthine oxidase by hydroxylated anthraquinones and related compounds
AU - Sheu, Shiow Yunn
AU - Chiang, Hsüch Ching
PY - 1997/9
Y1 - 1997/9
N2 - 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.
AB - 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.
KW - Anthracene (anthrarobin)
KW - Anthraquinone (purpurin)
KW - Antibacterial
KW - Xanthine oxidase inhibitors
UR - http://www.scopus.com/inward/record.url?scp=0030730650&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0030730650&partnerID=8YFLogxK
M3 - Article
VL - 17
SP - 3293
EP - 3297
JO - Anticancer Research
JF - Anticancer Research
SN - 0250-7005
IS - 5 A
ER -