Rhoifolin regulates oxidative stress and proinflammatory cytokine levels in Freund's adjuvant-induced rheumatoid arthritis via inhibition of NF-κB
Braz. j. med. biol. res
;
53(6): e9489, 2020. graf
Article
in English
| LILACS, ColecionaSUS
| ID: biblio-1132521
ABSTRACT
Rheumatoid arthritis (RA) is an autoimmune disease of knee joints involving pain and inflammation. Rhoifolin is a plant flavonoid known to have antioxidant and anti-inflammatory properties. This study was taken to identify the effect of rhoifolin on complete Freund's adjuvant (CFA)-induced arthritis in the rat model. Treatment with rhoifolin (10 and 20 mg/kg) showed a significant improvement in the overall health parameters such as paw edema and weight loss. This improvement in morphological parameters corroborated the findings with gross morphological changes observed in the histopathological analysis. Rhoifolin treatment also caused a significant decrease in oxidative stress, evident from changes in intracellular levels of glutathione, glutathione peroxidase, malondialdehyde, and superoxide dismutase in the articular cartilage tissue. Moreover, proinflammatory cytokines, tumor necrosis factor (TNF)-α, interleukin(IL)-1β, and IL-6 showed a significant downregulation of gene expression and intracellular protein concentration levels. The NF-κB pathway showed a significant attenuation as evident in the significant reduction in the levels of NF-κB p65 and p-IκB-α. These results indicated that rhoifolin can be a natural therapeutic alternative to the extant regimens, which include non-steroidal anti-inflammatory drugs and immunosuppressants. Additionally, the antioxidant and anti-inflammatory action of rhoifolin was probably mediated by the NF-κB pathway. However, the exact target molecules of this pathway need to be determined in further studies.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Arthritis, Experimental
/
Arthritis, Rheumatoid
/
Flavonoids
/
Freund's Adjuvant
/
Cytokines
/
Oxidative Stress
/
Disaccharides
Type of study:
Prognostic study
Limits:
Animals
Language:
English
Journal:
Braz. j. med. biol. res
Year:
2020
Type:
Article
Institution/Affiliation country:
Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine/CN
/
Guangzhou University of Chinese Medicine/CN
/
The 455th Hospital of Chinese Peoples Liberation Army/CN
/
Wenzhou Hospital of Chinese Medicine/CN
/
YouJiang Medical University for Nationalities/CN
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