Therapeutic Use of Scoparia dulcis Reduces the Progression of Experimental Osteoarthritis

Author:

Lima Marcus Vinícius ViégasORCID,Freire Abner de Oliveira,Sousa Emerson Lucas Frazão,Vale André Alvares Marques,Lopes Alberto Jorge Oliveira,Vasconcelos Cleydlenne Costa,Lima-Aragão Mônica Virginia Viégas,Serra Humberto Oliveira,Liberio Rosane Nassar Meireles Guerra,Santos Ana Paula Silva de Azevedo dos,Silva Gyl Eanes Barros,Rocha Claúdia Quintino daORCID,Moreira Lima Fernando César VilhenaORCID,Cartágenes Maria do Socorro de Sousa,Garcia João Batista SantosORCID

Abstract

Pain is recognized as one of the main symptoms in knee osteoarthritis and is the main reason why patients seek medical attention. Scoparia dulcis has been popularly used to relieve discomfort caused by various painful conditions. The objective of the study is to evaluate the analgesic and anti-inflammatory effect of the crude extract of S. dulcis, in an experimental model of osteoarthritis. The experiment was performed with Wistar rats divided into 4 groups with 5 animals each: healthy, saline, crude extract, and meloxicam groups. Knee osteoarthritis was induced by intra-articular injection of sodium mono-iodoacetate. First, clinical parameters of pain were assessed at days 0, 5, 10, 15, and 20 after induction. Second, the potential cyclooxygenase inhibition was evaluated, and the cytokines of the synovial fluid were quantified. An in silico test and Molecular Docking tests were performed. A histopathological evaluation was made on articular cartilage with safranin O staining. The results showed that a 15-day treatment with crude extract reduced edema, spontaneous pain, peripheral nociceptive activity, and proinflammatory cytokines in the synovial fluid. The highest inhibition of cyclooxygenase 2 in the crude extract occurred at 50 µg/mL. The crude extract of S. dulcis presents therapeutic potential for the treatment of osteoarthritis due to its anti-inflammatory and anti-nociceptive action.

Publisher

MDPI AG

Subject

Chemistry (miscellaneous),Analytical Chemistry,Organic Chemistry,Physical and Theoretical Chemistry,Molecular Medicine,Drug Discovery,Pharmaceutical Science

Reference69 articles.

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