The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Structure−Activity Relationship and Classification of Flavonoids as Inhibitors of Xanthine Oxidase and Superoxide Scavengers
Open accessAbstract
The structure-activity relationship of flavonoids as inhibitors of xanthine oxidase and as scavengers of the superoxide radical, produced by the action of the enzyme xanthine oxidase, was investigated. The hydroxyl groups at C-5 and C-7 and the double bond between C-2 and C-3 were essential for a high inhibitory activity on xanthine oxidase. Flavones showed slightly higher inhibitory activity than flavonols. All flavonoid derivatives except isorhamnetin (30) were less active than the original compounds. For a high superoxide scavenging activity on the other hand, a hydroxyl group at C-3' in ring B and at C-3 were essential. According to their effect on xanthine oxidase and as superoxide scavengers, the flavonoids could be classified into six groups: superoxide scavengers without inhibitory activity on xanthine oxidase (category A), xanthine oxidase inhibitors without any additional superoxide scavenging activity (category B), xanthine oxidase inhibitors with an additional superoxide scavenging activity (category C), xanthine oxidase inhibitors with an additional pro-oxidant effect on the production of superoxide (category D), flavonoids with a marginal effect on xanthine oxidase but with a prooxidant effect on the production of superoxide (category E), and finally, flavonoids with no effect on xanthine oxidase or superoxide (category F).
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Quantitative Aspects of the Production of Superoxide Anion Radical by Milk Xanthine Oxidase
Fridovich, I. (1970) · Journal of Biological Chemistry · doi:10.1016/s0021-9258(18)62884-4 · Cited by 1,035
Cited by
Advances in flavonoid research since 1992
Harborne, J. B., & Williams, C. A. (2000) · Phytochemistry · doi:10.1016/s0031-9422(00)00235-1 · Cited by 3,956
Tungmunnithum, D., Thongboonyou, A., Pholboon, A., & Yangsabai, A. (2018) · Medicines · doi:10.3390/medicines5030093 · Cited by 1,969
A Review of the Antioxidant Mechanisms of Polyphenol Compounds Related to Iron Binding
Perron, N. R., & Brumaghim, J. L. (2009) · Cell Biochemistry and Biophysics · doi:10.1007/s12013-009-9043-x · Cited by 1,370
Microalgae for High-Value Products Towards Human Health and Nutrition
Barkia, I., Saari, N., & Manning, S. R. (2019) · Marine Drugs · doi:10.3390/md17050304 · Cited by 719
RETRACTED: Therapeutic potential of flavonoids in cancer: ROS-mediated mechanisms
Slika, H., Mansour, H., Wehbe, N., Nasser, S. A., Iratni, R., Nasrallah, G., Shaito, A., Ghaddar, T., Kobeissy, F., & Eid, A. H. (2022) · Biomedicine & Pharmacotherapy · doi:10.1016/j.biopha.2021.112442 · Cited by 441
“This double bond allows for conjugation and coplanarity across the three rings of the flavonoid [46].”
BackgroundInfluentialRetracted
Metadata
- Authors
- Cos, P., Ying, L., Calomme, M., Hu, J. P., Cimanga, K., Van Poel, B., Pieters, L., Vlietinck, A. J., & Berghe, D. V.
- Venue
- Journal of Natural Products
- Publisher
- American Chemical Society (ACS)
- Published
- 1998-01-01
- Volume
- 61
- Issue
- 1
- Pages
- 71-76
- ISSN
- 0163-3864 (ISSN-L)
- 1520-6025
- OpenAlex
- W2138562665
- Cited by
- 1,091
- References
- 1
- FWCI
- 9.96
- Type
- journal article
- Language
- en
- Open access
- green
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Structure−Activity Relationship and Classification of Flavonoids as Inhibitors of Xanthine Oxidase and Superoxide Scavengers. https://app.cochat.ai/papers/10.1021/np970237h
- The paper
- Cos, P., Ying, L., Calomme, M., Hu, J. P., Cimanga, K., Van Poel, B., Pieters, L., Vlietinck, A. J., & Berghe, D. V. (1998). Structure−Activity Relationship and Classification of Flavonoids as Inhibitors of Xanthine Oxidase and Superoxide Scavengers. Journal of Natural Products. https://doi.org/10.1021/np970237h
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
