Melamine induced cognitive impairment associated with oxidative damage in rat's hippocampus
Abstract
Previous studies reported that melamine could affect hippocampal function and cause spatial cognition impairment. Moreover, some evidences implied that there might be an oxidative damage pathway linking melamine to the function of hippocampus in vitro, but there was a paucity of data about this adverse effect in vivo. The aim of this study was to investigate the toxicology of melamine induced by oxidative damage in hippocampus in vivo. Male Wistar rats were randomly divided into two groups: control group (n=8) and melamine group (n=8). The animals were treated with melamine at a dose of 300 mg/kg/day in 1% carboxymethylcellulose (CMC) solution as a suspension by oral administration, while rats received the same dose of solution of 1% CMC in control group. Melamine was given once a day and for 28 consecutive days. The MWM experiment and histopathological examination were performed. MWM results showed that there were significant deficits of spatial learning and memory in melamine group. The levels of superoxide anion radical, hydroxyl free radical and malonaldehyde (MDA) were significantly increased by melamine, which also reduced the activities of superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px). The analysis of hi...Continue Reading
References
Renal screening in children after exposure to low dose melamine in Hong Kong: cross sectional study.
Citations
Nicotine-induced impairments of spatial cognition and long-term potentiation in adolescent male rats
Melamine Disrupts Acetylcholine-Mediated Neural Information Flow in the Hippocampal CA3-CA1 Pathway.
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