小型猪脑卒中模型构建的可行性研究
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1. 云南农业大学 云南省小型猪基因编辑与异种器官移植重点实验室,昆明 650201;2. 云南农业大学 动物医学院,昆明 650201;3. 福建医科大学附属第二医院,福建 泉州 362000;4. 云南农业大学 动物科学技术学院,昆明 650201;5. 云南农业大学 食品科学技术学院,昆明 650201

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Feasibility study on the construction of a small porcine stroke model
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1. Yunnan Provincial Key Laboratory of Gene Editing and Xenotransplantation of Small Pigs, Yunnan Agricultural University, Kunming 650201, China; 2. College of Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, China; 3. 2nd Affiliated Hospital of Fujian Medical University, Quanzhou 362000, China; 4. College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China; 5. College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China

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    摘要:

    目的 本研究旨在构建具有高度临床相关性的缺血性脑卒中(ischemic stroke, IS)和出血性脑卒中(hemorrhagic stroke, HS)小型猪模型,通过监测两种脑卒中术后疾病发生发展的病理生理过程,评估小型猪作为脑卒中体内模型构建的可行性,为脑卒中机制研究和治疗策略开发提供更精确的实验工具。 方法 通过注入自体血(两次注血法)和开颅血管电凝法分别构建出 HS 模型和 IS 模型,术后对模型猪进行行为学评估、生理生化指标检测及脑组织病理学分析和神经细胞标志物免疫组化验证,全面评估模型与临床脑卒中发生发展过程的相似性。 结果 IS 模型猪表现出严重的偏瘫、运动障碍及意识反应减退,脑组织缺血坏死明显,炎症反应剧烈,神经元凋亡显著,肝肾功能轻度受损;HS 模型猪出现轻度行为障碍,血肿形成稳定,伴有脑水肿和机械性压迫,炎症反应活跃,神经元损伤及胶质细胞活化明显。 两种模型均表现出良好的稳定性和重复性。 结论 本研究成功构建了具有高度临床相关性的 IS 和 HS 小型猪模型,验证了小型猪构建脑卒中模型的可行性与准确性,为针对性治疗策略的开发提供了实验基础具备较高的临床相关性和实验价值,有助于促进脑卒中精准治疗的发展。

    Abstract:

    Objective This study aimed to establish minipig models of ischemic stroke (IS) and hemorrhagic stroke (HS) with high clinical relevance, to evaluate the feasibility of using minipigs as in vivo stroke models by monitoring post-stroke pathophysiological processes, and to provide a more accurate experimental platform for investigating stroke mechanisms and developing therapeutic strategies. Methods The HS model was established by autologous blood injection using a double-injection method, while the IS model was constructed via cranial vascular electrocoagulation. After surgery, behavioral assessments, physiological and biochemical indices, histopathological examination of brain tissue, and immunohistochemical analysis of neuronal markers were conducted to comprehensively evaluate the extent to which the models replicated clinical stroke progression. Results Pigs in the IS model exhibited severe hemiparesis, motor dysfunction, and reduced levels of consciousness, accompanied by marked ischemic necrosis of brain tissue, pronounced inflammatory responses, significant neuronal apoptosis, and mild impairment of liver and kidney function. By contrast, pigs in the HS model showed mild behavioral disturbances and stable hematoma formation, along with cerebral edema, mechanical compression, active inflammatory responses,and evident neuronal injury with glial cell activation. Both models demonstrated good stability and reproducibility. Conclusions IS and HS minipig models with high clinical relevance were successfully established in this study.These findings confirm the feasibility and reliability of constructing stroke models in minipigs and provide a robust experimental basis for the development of targeted therapeutic strategies, supporting translational research and the advancement of precision stroke therapy.

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郭鑫旺,王佳音,高如玉,代淑玲,陈晓晶,吴保方,程文杰,魏太云,赵耀博,李开通,高宏志,魏红江,赵红业.小型猪脑卒中模型构建的可行性研究[J].中国实验动物学报,2026,34(2):168~184.

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  • 收稿日期:2025-06-09
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  • 在线发布日期: 2026-03-20
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