Abstract

This study explored the therapeutic potential hydroalcoholic extract derived from Origanum vulgare leaf in mitigating ethanol-induced working memory impairments and hippocampal oxidative stress in rats. Eight groups, including controls, ethanol-exposed rats, and those treated with extract (100, 200, and 300 mg/kg) alone or combined with ethanol, were assessed using the radial arm maze (RAM) for behavioral tests. Ethanol increased working memory errors and time spent in error zones, effects notably reduced by the extract, especially at 300 mg/kg dose (P≤0.001). Biochemical tests showed ethanol suppressed catalase (CAT), superoxide dismutase (SOD), and acetylcholinesterase (AChE) activities within the hippocampus and cortex. while the extract elevated CAT and SOD activities and reduced AChE activity. These results suggest the extract's neuroprotective properties, including oxidative stress reduction and neurotransmitter modulation, which mitigate ethanol-induced hippocampal damage. This highlights Origanum vulgare extract potential as a therapeutic adjunct for memory deficits and oxidative stress-related conditions.

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