Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
2003-12-3
pubmed:abstractText
Oral administration of the MeOH extract of Rhus verniciflua or of an EtOAc fraction containing an EtOAc-soluble portion of the MeOH extract slightly decreased rheumatoid arthritis (RA) and C-reactive protein (CRP) factors in Freund's complete adjuvant reagent FCA-treated rats, indicating that they are active extracts for rheumatoid arthritis, the EtOAc extract being more active. Treatment with these two extracts prevented histological changes such as synovial cell proliferation, inflammatory cell infiltration and fat necrosis compared with an FCA-treated group. Oral administration (30 mg/kg) of sulfuretin and fustin, which were isolated from the EtOAc extract by activity-guided separation, significantly decreased RA and CRP factors, the former being more active than the latter. Treatment with the EtOAc fraction ( p. o.) containing sulfuretin significantly decreased malondialdehyde (MDA) formation, and highly increased the activities of superoxide dismutase, catalase and glutathione peroxidase. Inhibition of xanthine oxidase and aldehyde oxidase in FCA-treated rats was also evident. Since treatment with sulfuretin and the EtOAc extract decreased the concentration of infiltrated mast cells in the rat knee exhibiting rheumatoid arthritis, we suggest that the Rhus verniciflua extract, which contains sulfuretin as an active component, may prevent rheumatoid syndromes by inhibiting reactive oxygen species.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0032-0943
pubmed:author
pubmed:issnType
Print
pubmed:volume
69
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
899-904
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:14648391-Administration, Oral, pubmed-meshheading:14648391-Animals, pubmed-meshheading:14648391-Antioxidants, pubmed-meshheading:14648391-Arthritis, Rheumatoid, pubmed-meshheading:14648391-Benzofurans, pubmed-meshheading:14648391-Cell Division, pubmed-meshheading:14648391-Dose-Response Relationship, Drug, pubmed-meshheading:14648391-Flavonoids, pubmed-meshheading:14648391-Freund's Adjuvant, pubmed-meshheading:14648391-Knee Joint, pubmed-meshheading:14648391-Male, pubmed-meshheading:14648391-Phytotherapy, pubmed-meshheading:14648391-Plant Extracts, pubmed-meshheading:14648391-Plant Stems, pubmed-meshheading:14648391-Rats, pubmed-meshheading:14648391-Rats, Sprague-Dawley, pubmed-meshheading:14648391-Rhus, pubmed-meshheading:14648391-Synovial Fluid, pubmed-meshheading:14648391-Thiobarbituric Acid Reactive Substances
pubmed:year
2003
pubmed:articleTitle
Antirheumatoid arthritis effect of Rhus verniciflua and of the active component, sulfuretin.
pubmed:affiliation
College of Pharmacy, Kyungsung University, Busan, Korea.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't