Compounds from ilex paraguariensis extracts have antioxidant effects in the brains of rats subjected to chronic immobilization stress


Por: Colpo A.C., de Lima M.E., Maya-López M., Rosa H., Márquez-Curiel C., Galván-Arzate S., Santamaría A., Folmer V.

Publicada: 1 ene 2017
Resumen:
Immobilization induces oxidative damage to the brain. Ilex paraguariensis extracts (Mate) and their major natural compound, chlorogenic acid (CGA), exert protective effects against reactive oxygen species formation. Here, the effects of Mate and CGA on oxidative damage induced by chronic immobilization stress (CIS) in the cortex, hippocampus, and striatum were investigated. For CIS, animals were immobilized for 6 h every day for 21 consecutive days. Rats received Mate or CGA by intragastric gavage 30 min before every restraint session. Endpoints of oxidative stress (levels of lipid peroxidation, protein carbonylation, and reduced (GSH) and oxidized (GSSG) forms of glutathione) were evaluated following CIS. While CIS increased oxidized lipid and carbonyl levels in all brain regions, CGA (and Mate to a lesser extent) attenuated lipid and protein oxidation as compared with control groups. GSH/GSSG balance showed a tendency to increase in all regions in response to stress and antioxidants. Taken together, our results support a protective role of dietary antioxidants against the neuronal consequences of stress. © 2017, Canadian Science Publishing. All rights reserved.

Filiaciones:
Colpo A.C.:
 Laboratorio de Aminoácidos Excitadores, Instituto Nacional de Neurología y Neurocirugía, Mexico City, Mexico

 Programa de Pós-Graduação em Bioquímica, Universidade Federal do Pampa (UNIPAMPA), Uruguaiana, Rio Grande do Sul, Brazil

de Lima M.E.:
 Laboratorio de Aminoácidos Excitadores, Instituto Nacional de Neurología y Neurocirugía, Mexico City, Mexico

 Programa de Pós-Graduação em Bioquímica, Universidade Federal do Pampa (UNIPAMPA), Uruguaiana, Rio Grande do Sul, Brazil

Maya-López M.:
 Laboratorio de Aminoácidos Excitadores, Instituto Nacional de Neurología y Neurocirugía, Mexico City, Mexico

Rosa H.:
 Programa de Pós-Graduação em Bioquímica, Universidade Federal do Pampa (UNIPAMPA), Uruguaiana, Rio Grande do Sul, Brazil

Márquez-Curiel C.:
 Departamento de Neuroquímica, Instituto Nacional de Neurología y Neurocirugía, Mexico City, Mexico

Galván-Arzate S.:
 Departamento de Neuroquímica, Instituto Nacional de Neurología y Neurocirugía, Mexico City, Mexico

Santamaría A.:
 Laboratorio de Aminoácidos Excitadores, Instituto Nacional de Neurología y Neurocirugía, Mexico City, Mexico

Folmer V.:
 Programa de Pós-Graduação em Bioquímica, Universidade Federal do Pampa (UNIPAMPA), Uruguaiana, Rio Grande do Sul, Brazil
ISSN: 17155312
Editorial
CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS, 65 AURIGA DR, SUITE 203, OTTAWA, ON K2E 7W6, CANADA, Canada
Tipo de documento: Article
Volumen: 42 Número: 11
Páginas: 1172-1178
WOS Id: 000416207800007
ID de PubMed: 28708964

MÉTRICAS