Abstract
Dieldrin (DLD) is an organochlorine pesticide heavily used in agriculture to control pests. Widespread exposures of DLD to human population are likely to contribute in neurological disorders. Withania somnifera (WSF), commonly known as “ashwagandha,” is used for its broad spectrum of pharmacological activity. The present study was designed to investigate the effect of WSF (100 mg/kg) on DLD (5 mg/kg)-induced modulation of cognitive function and oxidative stress in male Wistar rats. Cognitive function was measured using step-down latency (SDL) on a continuous avoidance apparatus and transfer latency (TL) on an elevated plus maze. Oxidative stress was estimated by measuring brain malondialdehyde (MDA) level, protein carbonyl (PC), and reduced glutathione (GSH) activity. Significant reduction in both acquisition and retention in SDL was found for the DLD-treated group at the end of the exposure study as compared to the control (P Abbreviations Used: DLD: Dieldrin; GSH: Reduced glutathione; LD: Lethal dose; LPO: Lipid peroxidation; MDA: Malondialdehyde; OCP: Organochlorine pesticide; PC: Protein carbonyl; SDL: Step-down latency; SFZ: Shock-free zone; TL: Transfer latency; WSF: Withania Somnifera.
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