TERAPIA FOTODINÂMICA EM MODELO EXPERIMENTAL DE ARTRITE INDUZIDA POR PARACOCCIDIOIDES BRASILIENSIS TERAPIA FOTODINÂMICA EM ARTRITE EXPERIMENTAL
Abstract
Photodynamic therapy (PDT) is a fungal treatment that stands out because of its low toxicity and inability to induce microbial resistance. The study aimed to evaluate the effects of PDT in an experimental model of articular arthritis induced by Paracoccidiode brasiliensis. For this Wistar rats were distributed into groups and inoculated with P. brasiliensis or PBS (control) in the knee joint. After developing arthritis, the rats were treated. The PDT40 and PDT120 groups received treatment with PDT 40 J/cm2 and 120 J/cm2; the MB group with methylene blue; and the L40 and L120, treated with 40 J / cm2 and 120 J / It was observed that the formation of edema, titration of anti-Gp43 antibodies and arthritis index were significant in the inoculated and less evident groups in the PDT40 and PDT120. Anatomopathological evaluation of the PDT120 group showed the best synovial membrane morphology recovery. It is concluded that 120 J/cm2 PDT is more effectively reduced arthritis than the other groups, which has the potential impact in the treatment of P. brasiliensis infections.
Keywords: Paracoccidioidomycosis; Joints; Photochemotherapy; Knee; Synovium.
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