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Curcumin alleviates cisplatin-induced learning and memory impairments
(Academic Press Inc Elsevier Science, 2015) Oz, Mehmet; Atalik, K. Esra Nurullahoglu; Yerlikaya, F. Humeyra; Demir, Enver Ahmet
The present study has been designed to investigate the role of curcumin on cisplatin-inducedcognitive impairment and to reveal mechanisms of cisplatin's detrimental actions on cognition in rats. Animals were treated with cisplatin (5 mg/kg/week) and/or curcumin (300 mg/kg/day) for 5 weeks. Morris water maze test was used to assess spatial learning and memory. Enzymatic activities of acetylcholinesterase (AChE) and superoxide dismutase (SOD) were evaluated from hippocampus and plasma samples, and malondialdehyde (MDA), which is the end-product of lipid peroxidation, was determined by a colorimetric method. Our results showed that cisplatin (5 mg/kg/week, 5 weeks) caused learning and memory deficits, elevated MDA content, decreased SOD activity in the hippocampus and plasma, and AChE activity in the hippocampus. Curcumin improved learning and memory in rats with administration of cisplatin. In addition, curcumin significantly reduced the level of MDA and increased the activities of SOD and AChE. Taken together, our findings indicate that curcumin ameliorates cisplatin-induced spatial learning and memory impairment, possibly through restored cholinergic function and enhanced oxidative status. (C) 2015 Elsevier Inc. All rights reserved.