Abstract
Objective: The use of xenobiotics to boost agricultural productivity has led to toxic chemicals exposure including organophosphates, causing adverse health outcomes including behavioral and neuronal impairments. This study aimed to evaluate the memory indices, possible oxidative and cholinesterase outturnson the frontal cortices of rats exposed to organophosphates.Methodology: Thirty-two Wistar rats were grouped into four. They received 1ml/kg of Normal, 8.8 mg/kg dichlorvos, 14.9 mg/kg chlopyrifos, and 8.8 mg/kg dichlorvos plus 14.9mg/kg chlorpyrifos respectively. They had training trials in the Y Maze paradigm then spatial working memory assessment. They were euthanized 24hours following exposure and tissues excised for analysis.Results: A marked reduction in metabolic markers, Acetylcholine Esterase (AChE) activity, spatial memory indices and proliferative neuron marker (Ki67) were observed. Also, increase in oxidative stress markers in the frontal cortices of the organophosphates exposed rats.Conclusion: The findings demonstrated neurotoxic effects of organophosphates in rats.
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