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Brain Res Bull. 2015 Apr;113:41-7. doi: 10.1016/j.brainresbull.2015.02.002. Epub 2015 Feb 25.

Exploring the effect of vitamin C on sleep deprivation induced memory impairment.

Author information

1
Department of Clinical Pharmacy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan. Electronic address: nizarm@just.edu.jo.
2
Department of Clinical Pharmacy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan.
3
Department of Biology, Faculty of Science, Taibah University, Medina, Saudi Arabia; Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, Jordan University of Science and Technology, Irbid, Jordan.
4
Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, Jordan University of Science and Technology, Irbid, Jordan.

Abstract

In the current study, the possible beneficial effect of vitamin C (VitC) against sleep deprivation induced memory impairment was examined. Chronic sleep deprivation was induced via placing rats in a modified multiple platform apparatus for 8h/day for a period of 6 weeks. Concomitantly, VitC was administered to animals at doses of 150 and 500 mg/kg/day. After 6 weeks of treatment, the radial arm water maze (RAWM) was used to test for spatial learning and memory performance. Moreover, the hippocampus was dissected; and levels/activities of antioxidant defense biomarkers glutathione reduced (GSH), glutathione oxidized (GSSG), GSH/GSSG ratio, catalase, superoxide dismutase (SOD), and thiobarbituric acid reactive substances (TBARS), were evaluated. Results revealed that chronic sleep deprivation impaired short- and long-term memories (P<0.05). This impairment was prevented by chronic VitC treatments. In addition, VitC normalized sleep deprivation induced decreases in hippocamppal GSH/GSSG ratio (P<0.05), and activities of catalase, and SOD, and increase in GSSG levels (P<0.05). Collectively, spatial memory impairment was induced by chronic sleep deprivation, and VitC treatment prevented such impairment. This was possibly achieved via normalizing antioxidant defense mechanisms of the hippocampus.

KEYWORDS:

Hippocampus; Maze; Memory; Sleep deprivation; Vitamin C

[Indexed for MEDLINE]

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