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Resveratrol lowers synovial hyperplasia, inflammatory markers and oxidative damage in an acute antigen-induced arthritis model. | LitMetric

AI Article Synopsis

Article Abstract

Objective: The present study aimed to determine the protective effects of dietary supplementation with resveratrol (RSV) in an acute antigen-induced arthritis (AIA) model.

Methods: Rats were randomly divided into three groups: control, AIA and RSV-treated AIA group. RSV (12.5 mg/kg/day) was given orally for 8 weeks before induction of AIA and until the end of the experiment (48 h after intra-articular injection). The control and AIA animals were administered 100 μl of water. Results were evaluated by macroscopic observation, histopathology and immunohistochemistry for anti-PCNA, macrophages (CD68), T lymphocytes (CD3), monocyte chemoattractant protein-1 and 8-oxo-7,8-dihydro-2'-deoxyguanine (a marker of DNA damage). Cytokine-induced neutrophil chemoattractant-1 in serum and peroxidase activity in synovial tissue were measured using commercial kits.

Results: At the end of the study, RSV significantly reduced knee swelling. Likewise, the histological score of synovial tissue also reduced significantly. The arthritis-protective effects were associated with a significant decrease in PCNA, CD68, CD3 and monocyte chemoattractant protein-1 staining, as well as a reduction in serum concentrations of cytokine-induced neutrophil chemoattractant-1. RSV treatment also decreased the level of the marker of DNA damage, 8-oxo-7,8-dihydro-2'-deoxyguanine. Accordingly, peroxidase activity in the synovial tissue was up-regulated.

Conclusion: Dietary supplementation with RSV lowers the main pathological hallmarks of RA disease in an acute model of AIA. RSV may represent a promising strategy in controlling the severity of RA.

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Source
http://dx.doi.org/10.1093/rheumatology/kew255DOI Listing

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