AVALIAÇÃO DA CAPACIDADE ANTIOXIDANTE E ANTI-INFLAMATÓRIA DO RESVERATROL EM IDOSOS COM E SEM DEMÊNCIA

Autores

  • Barbara Néllita Moura Silva
  • Filipe Nogueira Franco
  • Luciana de Cássia Cardoso
  • Glaucy Rogrigues de Araújo
  • Míriam Martins Chaves

DOI:

https://doi.org/10.51161/rems/938

Palavras-chave:

Demência, Estresse Oxidativo, Neuroinflamação, Resveratrol

Resumo

Introdução: A Demência é uma condição em que ocorre perda da função cerebral, neuroinflamação e estresse oxidativo. O Resveratrol (RSV) é um polifenol com ação antioxidante e anti-inflamatória. Objetivo: Verificar se o RSV exerce efeito antioxidante e anti-inflamatório de forma similar em leucócitos isolados de idosos com ou sem demência. Material e Métodos: O projeto foi aprovado pelo Comitê de Ética da UFMG (CAAE: 14846619.7.0000.5149). Foram realizados os ensaios de viabilidade celular para determinar as concentrações de RSV (5µM) e H2O2 (150µM). A análise de Espécies Reativas de Oxigênio (ROS) foi realizada pelo ensaio de quimioluminescência. A quantificação de Espécies Reativas de Nitrogênio foi realizada pela dosagem de Óxido Nítrico (NO) via método de Griess. O perfil inflamatório foi analisado pela dosagem das citocinas pró-inflamatórias (TNF e IL-6) e anti-inflamatória (IL-10) por kits comerciais. Os resultados foram expressos em média ± DP (p<0,05). Resultados: Foi observada uma maior produção basal de ROS nos idosos com demência quando comparado ao grupo controle (~260%). O RSV foi capaz de reduzir a produção de ROS em ambos os grupos (Controle ~90% e Experimental ~60%). O tratamento com H2O2 foi capaz de gerar um ambiente oxidante em ambos os grupos e H2O2+RSV foi capaz de diminuir a produção de ROS também em ambos os grupos (Controle ~88% e Experimental ~71%). Observou-se um aumento de NO nos tratamentos com RSV no grupo controle enquanto no grupo com Demência os valores eram aproximadamente 10x maiores. Na análise dos marcadores inflamatórios, observou-se um aumento de TNF e IL-6 e diminuição de IL-10 mais acentuados nos portadores de Demência, onde o RSV teve uma menor capacidade de ação. Conclusão: O RSV atuou como antioxidante e anti-inflamatório em ambos os grupos, porém de forma menos eficaz no grupo com Demência. Tais resultados são importantes para auxiliar na conduta clínica.

Publicado

2021-04-24

Como Citar

Silva, B. N. M., Franco, F. N., Cardoso, L. de C., Araújo, G. R. de, & Chaves, M. M. . (2021). AVALIAÇÃO DA CAPACIDADE ANTIOXIDANTE E ANTI-INFLAMATÓRIA DO RESVERATROL EM IDOSOS COM E SEM DEMÊNCIA. Revista Multidisciplinar Em Saúde, 2(2), 01. https://doi.org/10.51161/rems/938

Edição

Seção

Anais do Congresso Brasileiro de Imunologia On-line
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