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The role of gut-brain axis in a rotenone-induced rat model of Parkinson's disease

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Autor(es):
Santos, Julio Cesar Claudino dos ; Reboucas, Conceicao da Silva Martins ; Oliveira, Leandro Freitas ; Cardoso, Fabrizio dos Santos ; Nascimento, Tyciane de Souza ; Oliveira, Alfaete Vieira ; Lima, Micael Porto Portela ; de Andrade, Geanne Matos ; Brito, Gerly Anne de Castro ; Viana, Glauce Socorro de Barros
Número total de Autores: 10
Tipo de documento: Artigo Científico
Fonte: NEUROBIOLOGY OF AGING; v. 132, p. 13-pg., 2023-10-13.
Resumo

Parkinson's disease (PD) is a widespread neurodegenerative condition affecting millions globally. This in-vestigation centered on the gut-brain axis in a rotenone-induced PD rat model. Researchers monitored behavioral shifts, histological modifications, neurodegeneration, and inflammation markers throughout the rats' bodies. Results revealed that rotenone-treated rats displayed reduced exploration (p = 0.004) and motor coordination (p < 0.001), accompanied by decreased Nissl staining and increased alpha-synuclein im-munoreactivity in the striatum (p = 0.009). Additionally, these rats exhibited weight loss (T3, mean = 291.9 +/- 23.67; T19, mean = 317.5 +/- 17.53; p < 0.05) and substantial intestinal histological alterations, such as shor-tened villi, crypt architecture loss, and inflammation. In various regions, researchers noted elevated im-munoreactivity to ionized binding adapter molecule (IBA)-1 (p < 0.05) and reduced immunoreactivity to glial fibrillary acidic protein (p < 0.05) and S100B (p < 0.001), indicating altered glial cell activity. Overall, these findings imply that PD is influenced by gut-brain axis changes and may originate in the intestine, impacting bidirectional gut-brain communication.(c) 2023 Elsevier Inc. All rights reserved. (AU)

Processo FAPESP: 21/06473-4 - Potencial terapêutico da fotobiomodulação em ratos com Epilepsia: análise da frequência de crises epilépticas, desempenho cognitivo, e perfil metabolômico cerebral
Beneficiário:Fabrízio dos Santos Cardoso
Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado