Abstract
Most of the conventional rheumatoid arthritis (RA) drugs used have severe adverse reactions. Therefore, natural plant products are continuously being sought for the management of RA. In the present study, in vitro antioxidant, joint protective and anti-inflammatory activity of aqueous green tea extract (AGTE) was evaluated in 50 patients with early RA, 30 patients with established RA and 50 healthy control subjects. All patients received 4 to 6 cups/day; 60 to 125 mg catechins of green tea for 24 weeks. The results obtained indicated that green tea possesses potent joint protective and anti-inflammatory action against RA by lowering disease activity parameters and improving COMP, HA, IL-6, and TNF-œ. The biochemical observations were supplemented with radiographic analysis of RA patients. In vitro 1,1-diphenyl-2-picryldrazil (DPPH) radical scavenging and NBT assay tests of the green tea exhibited a moderate antioxidant activity (90.3 and 87.9%) in both tests used. The possible mechanism(s) of green tea extract (AGTE) activity may be due to free radical scavenging potential caused by the presence of antioxidant component(s) in AGTE. Consequently, green tea can be used as a therapeutic regime in treatment of some RA disorders. Key words: Cartilage oligomeric matrix protein (COMP), interluken-6 (IL-6), tumor necrosis factor (TNF-œ), rheumatoid arthritis, green tea, disease activity score (DAS)-28, pain numerical rating score (PNRS), European League Against Rheumatism Response (EULAR) criteria.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
