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| 1 | Animal models of stroke显示文摘Stroke is a devastating disease with high morbidity and mortality.Animal models are indispensable tools that can mimic stroke processes and can be used for investigating mechanisms and developing novel therapeutic regimens.As a heterogeneous disease with complex pathophysiology,mimicking all aspects of human stroke in one animal model is impossible.Each model has unique strengths and weaknesses.Models such as transient or permanent intraluminal thread occlusion middle cerebral artery oc-clusion(MCAo)models and thromboembolic models are the most commonly used in simulating human ischemic stroke.The endovascular filament occlusion model is characterized by easy manipulation and accurately controllable reperfusion and is suitable for studying the pathogenesis of focal ischemic stroke and reperfusion in-jury.Although the reproducibility of the embolic model is poor,it is more conveni-ent for investigating thrombolysis.Rats are the most frequently used animal model for stroke.This review mainly outlines the stroke models of rats and discusses their strengths and shortcomings in detail. | Yanyu Li Jingjing Zhang | 2021 | Animal Models and Experimental Medicine2021，4，3： | 9 |
| 2 | Characterization of astrocytes and microglial cells in the hippocampal CA1 region after transient focal cerebral ischemia in rats treated with Ilexonin A显示文摘Ilexonin A is a compound isolated from the root of Ilex pubescens,a traditional Chinese medicine.Ilexonin A has been shown to play a neuroprotective role by regulating the activation of astrocytes and microglia in the peri-infarct area after ischemia.However,the effects of ilexonin A on astrocytes and microglia in the infarct-free region of the hippocampal CA1 region remain unclear.Focal cerebral ischemia models were established by 2-hour occlusion of the middle cerebral artery in rats.Ilexonin A(20,40 or 80 mg/kg)was administered immediately after ischemia/reperfusion.The astrocyte marker glial fibrillary acidic protein,microglia marker Iba-1,neural stem cell marker nestin and inflammation markers were detected by immunohistochemistry and western blot assay.Expression levels of tumor necrosis factor-αand interleukin 1βwere determined by enzyme linked immunosorbent assay in the hippocampal CA1 tissue.Astrocytes were activated immediately in progressively increasing numbers from 1,3,to 7 days post-ischemia/reperfusion.The number of activated astrocytes further increased in the hippocampal CA1 region after treatment with ilexonin A.Microglial cells remained quiescent after ischemia/reperfusion,but became activated after treatment with ilexonin A.Ilexonin A enhanced nestin expression and reduced the expression of tumor necrosis factor-αand interleukin 1βin the hippocampus post-ischemia/reperfusion.The results of the present study suggest that ilexonin A has a neuroprotective effect in the hippocampus after ischemia/reperfusion,probably through regulating astrocytes and microglia activation,promoting neuronal stem cell proliferation and reducing the levels of pro-inflammatory factors.This study was approved by the Animal Ethics Committee of the Fujian Medical University Union Hospital,China. | Ai-Ling Xu Guan-Yi Zheng Hui-Ying Ye Xiao-Dong Chen Qiong Jiang | 2020 | Neural Regeneration Research2020，15，1： | 5 |
| 3 | 血管性认知障碍和卒中后认知障碍动物模型初步评价显示文摘血管性认知障碍(vascular cognitive impairment, VCI)是脑血管病变及血管危险因素导致至少一个认知域损害的临床综合征,病理表现有血管功能的改变、组织的损伤以及神经的退行性病变等。卒中后认知障碍(post-stroke cognitive impairment, PSCI)是VCI的一个重要亚型,占VCI的大部分。以往PSCI多依赖VCI动物模型来进行病理机制研究、药物研发等。随着学者们对PSCI概念的提出和深入探讨,我们发现两者的病理特征和主要受损害的认知区域并非完全相同,因此有必要尝试建立具有PSCI临床特征的动物模型。VCI实验动物模型有多种类型,PSCI研究模型应区别于VCI动物模型。本文对VCI和PSCI的特征和受损的认知域进行介绍,从构建模型的角度总结和初步评价了常见VCI和PSCI实验动物模型,尝试为VCI和PSCI的研究提供有用建议。 | 牛雨晴 秦合伟 姬令山 李伟峰 郭宁 宋雪梅 | 2022 | 中国比较医学杂志2022，32，5： | 1 |
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