Triptolide, a novel diterpenoid triepoxide fromTripterygium wilfordii Hook. f., suppresses the production and gene expression of pro-matrix metalloproteinases 1 and 3 and augments those of tissue inhibitors of metalloproteinases 1 and 2 in human synovial fibroblasts
Arthritis & Rheumatism (2001) - Comments
doi: 10.1002/1529-0131(200109)44:9<2193::aid-art373>;2-5  issn: 0004-3591  issn: 1529-0131  pubmed: 11592385 

Na Lin, Takashi Sato, Akira Ito