Tags

Type your tag names separated by a space and hit enter

Effects of Biota orientalis extract and its flavonoid constituents, quercetin and rutin on serum uric acid levels in oxonate-induced mice and xanthine dehydrogenase and xanthine oxidase activities in mouse liver.
J Ethnopharmacol. 2004 Jul; 93(1):133-40.JE

Abstract

The hypouricemic actions of Biota orientalis (BO) extract and its flavonoid constituents quercetin and rutin, were in vivo examined using oxonate-induced hyperuricemic mice. Quercetin and rutin, when administered three times orally to the oxonate-induced hyperuricemic mice, were able to elicit dose-dependent hypouricemic effects. The effects of quercetin and rutin were more potent than that of Biota orientalis extract at the same dose of 100 mg/kg. At doses of 50 mg/kg of quercetin or above, or at doses of 100 mg/kg of rutin or above, the serum urate levels of the oxonate-pretreated mice were not different from normal mice. In addition, Biota orientalis extract, quercetin and rutin, when tested in vivo on mouse liver homogenates, elicited significant inhibitory actions on the xanthine dehydrogenase/xanthine oxidase (XDH/XO) activities. The effects of quercetin and rutin resulted less potent than that of allopurinol. However, intraperitoneal administration at the same scheme did not produce any observable hypouricemic effect. These hypouricemic effects are partly due to the inhibition of XDH/XO activities in mouse liver. The pharmacological profile of the flavonoids is partly different from that of allopurinol. Such hypouricemic action and inhibition of the enzyme activity of quercetin and rutin may be responsible for a part of the beneficial effects of Biota orientalis extract on hyperuricemia and gout. The effects of quercetin and rutin on serum urate levels in hyperuricemic mice induced by oxonate and the inhibition of enzyme activities in mouse liver are discussed in relation to their absorption and metabolism, and their potential application to treat gout and hyperuricemia.

Authors+Show Affiliations

Institute of Functional Biomolecule, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, PR China.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

15182918

Citation

Zhu, Ji Xiao, et al. "Effects of Biota Orientalis Extract and Its Flavonoid Constituents, Quercetin and Rutin On Serum Uric Acid Levels in Oxonate-induced Mice and Xanthine Dehydrogenase and Xanthine Oxidase Activities in Mouse Liver." Journal of Ethnopharmacology, vol. 93, no. 1, 2004, pp. 133-40.
Zhu JX, Wang Y, Kong LD, et al. Effects of Biota orientalis extract and its flavonoid constituents, quercetin and rutin on serum uric acid levels in oxonate-induced mice and xanthine dehydrogenase and xanthine oxidase activities in mouse liver. J Ethnopharmacol. 2004;93(1):133-40.
Zhu, J. X., Wang, Y., Kong, L. D., Yang, C., & Zhang, X. (2004). Effects of Biota orientalis extract and its flavonoid constituents, quercetin and rutin on serum uric acid levels in oxonate-induced mice and xanthine dehydrogenase and xanthine oxidase activities in mouse liver. Journal of Ethnopharmacology, 93(1), 133-40.
Zhu JX, et al. Effects of Biota Orientalis Extract and Its Flavonoid Constituents, Quercetin and Rutin On Serum Uric Acid Levels in Oxonate-induced Mice and Xanthine Dehydrogenase and Xanthine Oxidase Activities in Mouse Liver. J Ethnopharmacol. 2004;93(1):133-40. PubMed PMID: 15182918.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of Biota orientalis extract and its flavonoid constituents, quercetin and rutin on serum uric acid levels in oxonate-induced mice and xanthine dehydrogenase and xanthine oxidase activities in mouse liver. AU - Zhu,Ji Xiao, AU - Wang,Ying, AU - Kong,Ling Dong, AU - Yang,Cheng, AU - Zhang,Xin, PY - 2003/05/20/received PY - 2004/02/17/revised PY - 2004/03/26/accepted PY - 2004/6/9/pubmed PY - 2004/10/27/medline PY - 2004/6/9/entrez SP - 133 EP - 40 JF - Journal of ethnopharmacology JO - J Ethnopharmacol VL - 93 IS - 1 N2 - The hypouricemic actions of Biota orientalis (BO) extract and its flavonoid constituents quercetin and rutin, were in vivo examined using oxonate-induced hyperuricemic mice. Quercetin and rutin, when administered three times orally to the oxonate-induced hyperuricemic mice, were able to elicit dose-dependent hypouricemic effects. The effects of quercetin and rutin were more potent than that of Biota orientalis extract at the same dose of 100 mg/kg. At doses of 50 mg/kg of quercetin or above, or at doses of 100 mg/kg of rutin or above, the serum urate levels of the oxonate-pretreated mice were not different from normal mice. In addition, Biota orientalis extract, quercetin and rutin, when tested in vivo on mouse liver homogenates, elicited significant inhibitory actions on the xanthine dehydrogenase/xanthine oxidase (XDH/XO) activities. The effects of quercetin and rutin resulted less potent than that of allopurinol. However, intraperitoneal administration at the same scheme did not produce any observable hypouricemic effect. These hypouricemic effects are partly due to the inhibition of XDH/XO activities in mouse liver. The pharmacological profile of the flavonoids is partly different from that of allopurinol. Such hypouricemic action and inhibition of the enzyme activity of quercetin and rutin may be responsible for a part of the beneficial effects of Biota orientalis extract on hyperuricemia and gout. The effects of quercetin and rutin on serum urate levels in hyperuricemic mice induced by oxonate and the inhibition of enzyme activities in mouse liver are discussed in relation to their absorption and metabolism, and their potential application to treat gout and hyperuricemia. SN - 0378-8741 UR - https://www.unboundmedicine.com/medline/citation/15182918/Effects_of_Biota_orientalis_extract_and_its_flavonoid_constituents_quercetin_and_rutin_on_serum_uric_acid_levels_in_oxonate_induced_mice_and_xanthine_dehydrogenase_and_xanthine_oxidase_activities_in_mouse_liver_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S037887410400162X DB - PRIME DP - Unbound Medicine ER -