Protective effects of caffeic acid on quinolinic acid-induced behavioral and oxidative alterations in rats
Por:
Colín-González A.L., Sánchez-Hernández S., De Lima M.E., Ali S.F., Chavarría A., Villeda J., Santamaría A.
Publicada:
1 ene 2015
Categoría:
Clinical psychology
Resumen:
Study design. The protective effects of the natural antioxidant caffeic acid (CA) on behavioral tasks and lipid peroxidation were tested in an excitotoxic model produced by unilateral intrastriatal injection of quinolinic acid (QUIN), and in striatal slices incubated in the presence of the same toxin. CA (20mg/kg) was administered intraperitoneally to rats every day for five days; then, rats received QUIN (240 nmol/µL). Six days later, motor asymmetry was quantified by the preferential use of forelimbs and the circling behavior tests. Rat striatal slices (300 µm thick) were incubated in the presence of CA (30-300 µM) and/or QUIN (100 µM) to estimate oxidative stress. Results. QUIN induced motor asymmetry in lesioned rats and increased lipid peroxidation in striatal slices when compared to control values. CA prevented the QUIN-induced toxic endpoints in a concentrationdependent manner. Conclusion. Our results support the neuroprotective role of CA in neurotoxic paradigms recruiting excitotoxic events. © 2015 Ana Laura Colín-González et al.
Filiaciones:
Colín-González A.L.:
Laboratorio de Aminoácidos Excitadores, Instituto Nacional de Neurología y Neurocirugía, Mexico City, Mexico
Sánchez-Hernández S.:
Laboratorio de Aminoácidos Excitadores, Instituto Nacional de Neurología y Neurocirugía, Mexico City, Mexico
De Lima M.E.:
Universidade Federal do Pampa, Uruguaiana, Brazil
Ali S.F.:
Neurochemistry Laboratory, Division of Neurotoxicology, National Center for Toxicological Research/FDA, Jefferson, AR, United States
Chavarría A.:
Unidad de Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
Villeda J.:
Laboratorio de Patología Experimental, Instituto Nacional de Neurología y Neurocirugía, Mexico City, Mexico
Santamaría A.:
Laboratorio de Aminoácidos Excitadores, Instituto Nacional de Neurología y Neurocirugía, Mexico City, Mexico
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