title: Suppressive effects of a Chinese herbal medicine qing-luo-yin extract on the angiogenesis of collagen-induced arthritis in rats.
abstract: Qing-Luo-Yin (QLY), a traditional Chinese herbal medicine for the treatment of rheumatoid arthritis, is a combination of the extracts of Sophora flavescens Ait., Phellodendron amurense Rupr., Sinomenium acutum Rehd. et Wils. and Dioscorea hypoglauca Palib. The suppressive effect of QLY on the development of angiogenesis was investigated in a rat model of collagen-induced arthritis (CIA). QLY (0.3 g/kg) was orally administered daily for 27 days. Neo-angiogenesis, pannus and cartilage damage, the expression of metalloproteinases (MMP)-3 messenger RNA (mRNA) and the level of the tissue inhibitor of matrix metalloproteinase (TIMP)-1 in the synovium were examined by histology, in situ hybridization and immunohistochemiscal assays, respectively. It was observed that the articular morphological alterations, the over-expression of MMP-3 mRNA and the reduced production of TIMP-1 in CIA rats were significantly ameliorated by QLY. QLY performed about as effectively as tripterygium glycosidorum tablets (0.1 g/kg) extracted from Tripterygium wilfordii Hook. f.. These results indicate that QLY exerts a suppressive effect on the angiogenesis of CIA rats, and suggest that the therapeutic effect of QLY could be due to restoring the balance of MMP-3 and TIMP-1 in rheumatoid synovium.
authors.affiliation: The Key Laboratory of Bioinformatics of Ministry of Education, Institute of Bioinformatics, Tsinghua University, Beijing 100084, People's Republic of China. shaoli@mail.tsinghua.edu.cn
authors.forename: Shao
authors.initials: S
authors.lastname: Li
authors.forename: Ai-Ping
authors.initials: AP
authors.lastname: Lu
authors.forename: Yong-Yan
authors.initials: YY
authors.lastname: Wang
authors.forename: Yan-Da
authors.initials: YD
authors.lastname: Li
mesh_terms: D000818:Animals; D018501:Antirheumatic Agents / Q000494:pharmacology* / Q000627:therapeutic use; D001169:Arthritis, Experimental / Q000378:metabolism / Q000473:pathology / Q000517:prevention & control; D003094:Collagen; D018450:Disease Progression; D004305:Dose-Response Relationship, Drug; D004365:Drugs, Chinese Herbal / Q000494:pharmacology* / Q000627:therapeutic use; D017403:In Situ Hybridization; D008297:Male; D019278:Matrix Metalloproteinase 3 / Q000378:metabolism; D008517:Phytotherapy; D010936:Plant Extracts / Q000494:pharmacology; D051381:Rats; D017208:Rats, Wistar; D013997:Time Factors; D019715:Tissue Inhibitor of Metalloproteinase-1 / Q000378:metabolism; D019716:Tissue Inhibitor of Metalloproteinase-2 / Q000378:metabolism
chemical_list: D018501:Antirheumatic Agents; D004365:Drugs, Chinese Herbal; D010936:Plant Extracts; D019715:Tissue Inhibitor of Metalloproteinase-1; C485000:quing-luo-yin; D019716:Tissue Inhibitor of Metalloproteinase-2; D003094:Collagen; D019278:Matrix Metalloproteinase 3