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甘草甜素对戊四氮诱导的慢性癫痫大鼠模型记忆损伤的神经保护作用:对海马组织学、氧化应激和炎症的见解

Neuroprotective impact of glycitin on memory impairment in a pentylenetetrazol-induced chronic epileptic rat model: insights into hippocampal histology, oxidative stress, and inflammation.

作者信息

Hakimi Naeini Saghi, Rajabi-Maham Hassan, Hosseini Abdolkarim, Azizi Vahid

机构信息

Department of Animal Sciences and Marine Biology, Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran, Iran.

出版信息

J Nat Med. 2025 Jan;79(1):59-72. doi: 10.1007/s11418-024-01846-7. Epub 2024 Oct 4.

Abstract

Epilepsy, characterized by recurrent seizures, often accompanies neurocognitive impairments and is associated with increased oxidative stress and inflammation. This study investigates the possible neuroprotective properties of glycitin, a soy isoflavone, on memory impairment, its impact on oxidative stress responses, and inflammatory gene expression in a chronic epileptic rat model induced by pentylenetetrazol (PTZ). Glycitin was administered at varying doses to evaluate its potential neuroprotective impact on memory, oxidative stress, and inflammation in this model. Behavioural assessments, memory retention and recall capabilities, histopathological examinations, measurements of oxidative stress biomarkers, and molecular assessments were employed for comprehensive evaluation. The results demonstrated that glycitin significantly improved memory impairment and reduced oxidative stress in epileptic rats. Additionally, glycitin treatment decreased the expression of tumor necrosis factor-α (TNF-α) and nuclear factor kappa B (NF-κB), indicating its potential to modulate the inflammatory response associated with epilepsy. These observations underscore the potential of glycitin as a therapeutic candidate for mitigating memory impairments linked to chronic epilepsy due to its antioxidant and anti-inflammatory properties, offering insights into novel avenues for the development of targeted interventions aimed at preserving cognitive function and ameliorating oxidative damage and inflammation in epileptic conditions.

摘要

癫痫以反复发作的癫痫发作为特征,常伴有神经认知障碍,并与氧化应激和炎症增加有关。本研究调查了大豆异黄酮甘氨酸对戊四氮(PTZ)诱导的慢性癫痫大鼠模型记忆损伤的可能神经保护特性、其对氧化应激反应的影响以及炎症基因表达。给予不同剂量的甘氨酸以评估其对该模型中记忆、氧化应激和炎症的潜在神经保护作用。采用行为评估、记忆保持和回忆能力、组织病理学检查、氧化应激生物标志物测量以及分子评估进行综合评价。结果表明,甘氨酸显著改善了癫痫大鼠的记忆损伤并降低了氧化应激。此外,甘氨酸治疗降低了肿瘤坏死因子-α(TNF-α)和核因子κB(NF-κB)的表达,表明其具有调节与癫痫相关的炎症反应的潜力。这些观察结果强调了甘氨酸作为一种治疗候选物的潜力,因其抗氧化和抗炎特性可减轻与慢性癫痫相关的记忆损伤,为开发旨在保护认知功能、改善癫痫状态下氧化损伤和炎症的靶向干预措施提供了新途径。

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