Disclosing the impact of metformin and methotrexate in adjuvant arthritis in female rats: molecular docking and biochemical insights on visfatin
Abstract
Rheumatoid arthritis (RA) is one of the most common systemic autoimmune inflammatory diseases, with a progressive etiology that results in serious complications and a higher chance of early death. Visfatin, an adipokine, is correlated with disease pathologic features and becomes a key biomarker and therapeutic target for RA. This study aimed to evaluate the anti-arthritic activity of metformin (an antidiabetic drug with anti-inflammatory activities) and methotrexate (the first choice for disease-modifying antirheumatic drugs in RA, with diverse adverse effects) in complete Freund's adjuvant (CFA)-induced arthritis in female rats. Treatment outcomes were assessed using arthritis severity, serum levels of inflammatory markers, and pro-inflammatory adipokine (visfatin). In addition to radiological and histopathological examination, and docking analysis. Results showed that Met, MTX, and Met/MTX significantly (p ≤ 0.05) lowered paw swelling and arthritic score, as well as attenuated serum levels of rheumatoid factor (RF), C-reactive protein (CRP), and visfatin. The combined treatment gives the best results. The previously mentioned findings were further confirmed through radiological and histopathological examinations. In conclusion, the co-administration of metformin could potentiate the anti-arthritic activity of methotrexate, providing a medical strategy for arthritis management.
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