Abstract
Doxorubicin (DOX) is a chemotherapeutic agent widely used in human malignancies. Its long-term use cause neurobiological side effects. The aim of the present study was to investigate the prophylactic effect exerted by daily administration of ellagic acid (EA) and rosmarinic acid (RA) on DOX-induced neurotoxicity in rats. Our data showed that DOX-induced significant elevation of brain malondialdehyde, tumor necrosis factor-alpha (TNF-α), inducible nitric oxide synthase (iNOS), caspase-3, and cholinesterase associated with significant reduction in reduced glutathione, monoamines namely serotonin, dopamine, as well as norepinephrine. Concomitant administration of EA (10mg/kg/day, p.o. for 14 days) and/or RA (75mg/kg/day, p.o. for 14 days) with DOX significantly mitigated the neural changes induced by DOX. Meanwhile, treatment ameliorated pro-inflammatory cytokines as TNF-α, iNOS, and attenuated oxidative stress biomarkers as well as brain monoamines. In conclusion, EA and RA can effectively protect against DOX-induced neurotoxicity, and the mechanisms underlying the neuroprotective effect are potentially associated with its antioxidant, anti-inflammatory, and antiapoptotic properties.
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