ArticleNaunyn-Schmiedeberg's archives of pharmacology2026
Neuroprotective effect of L-borneol on acrylamide-induced neurotoxicity in the rat hippocampus: biochemical, molecular, histological, and behavioral approach.
Article in Naunyn-Schmiedeberg's archives of pharmacology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
This study aimed to investigate the effects of L-borneol on the molecular, biochemical, and histological damage caused by acrylamide (ACR) in the hippocampus of adult male Wistar rats. It also examined the impact of L-borneol on spatial memory and anxiety-like behaviors in these animals. Animals were divided into four groups: control, L-borneol, ACR, and ACR + L-borneol. ACR (25 mg/kg) and L-borneol (50 mg/kg) were administered orally for 21 consecutive days. L-borneol reduced levels of malondialdehyde and nitric oxide, increased glutathione content, and enhanced superoxide dismutase activity in the hippocampus of rats treated with ACR. In addition, L-borneol lowered the expression of pro-inflammatory markers, nuclear factor-κB, and inducible nitric oxide synthase in the hippocampus. It effectively prevented changes in the expression of apoptosis-related genes, which are associated with decreased neuronal death in the cornus ammonis 1 and dentate gyrus regions. Moreover, L-borneol increased the expression of sirtuin 1 (SIRT1), nuclear factor erythroid 2-related factor 2 (Nrf2), heme oxygenase 1 (HO-1), brain-derived neurotrophic factor, and alpha 7-nicotinic acetylcholine receptors, while reducing the expression and activity of acetylcholinesterase. Finally, L-borneol improved spatial memory and reduced anxiety-like behaviors. In conclusion, L-borneol enhances behavioral performance in ACR-exposed animals by decreasing oxidative and nitrosative stress, as well as inhibiting inflammation and apoptosis. It appears that the upregulation of the SIRT1/Nrf2/HO-1 signaling pathway and the stimulation of acetylcholine signaling are crucial for mitigating ACR-induced neurotoxicity.
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