中国神经再生研究(英文版) ›› 2026, Vol. 21 ›› Issue (6): 2421-2431.doi: 10.4103/NRR.NRR-D-24-00716

• 原著:脑损伤修复保护与再生 • 上一篇    下一篇

间歇性缺氧后处理可改善血管性认知障碍和痴呆合并症小鼠的认知能力

  

  • 出版日期:2026-06-15 发布日期:2025-09-19

Intermittent hypoxic perconditioning improves cognitive function in a mouse model of vascular cognitive impairment and dementia with comorbidities by recovering cerebral blood flow

Feiyang Jin1, 2, #, Zhengming Tian1, #, Yuying Guan1, #, Yuning Li1 , Yakun Gu1 , Mengyuan Guo1 , Qianqian Shao1 , Yingxia Liu1 , Xiuhai Guo2 , Zhenzhen Quan3 , Jia Liu1, *, Xunming Ji1, 4, *   

  1. 1 Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Laboratory for Hypoxia Adaptation Translational Medicine, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, Capital Medical University, Beijing, China;  2 Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China;  3 Key Laboratory of Molecular Medicine and Biotherapy, School of Life Science, Beijing Institute of Technology, Beijing, China;  4 Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
  • Online:2026-06-15 Published:2025-09-19
  • Contact: Xunming Ji, MD, PhD, jixm@ccmu.edu.cn; Jia Liu, PhD, liujia_19901005@163.com.
  • Supported by:
    This study was supported by the Beijing Nova Program, Nos. 20230484436, Z211100002121038; the Chinese Institutes for Medical Research, No. CX23YQ01; the National Natural Science Foundation of China, Nos. 32100925, 82027802; and Beijing-Tianjin-Hebei Basic Research Cooperation Project, No. 22JCZXJC00190 (all to XJ and JL).

摘要:

血管性认知障碍和痴呆(VCID)是一种由慢性大脑低灌注引起的退行性神经系统疾病,目前尚无有效的针对病因的治疗方法。间歇性缺氧(IH)已被证明可增加小鼠的脑血流量(CBF),然而,目前尚不清楚这种干预措施是否对血管性认知障碍和痴呆有效。为此,实验使用双侧颈动脉狭窄方法构建了血管性认知障碍和痴呆模型,在建模前后分别进行间歇性缺氧干预治疗。结果发现间歇性缺氧可增加血管性认知障碍和痴呆模型小鼠前额叶皮质和海马的脑血流量、氧饱和度和微循环,而不会造成神经血管损伤。同时间歇性缺氧还可显著改善了血管性认知障碍和痴呆模型小鼠的认知功能,且间歇性缺氧后处理比预处理更为有效。小鼠脑微循环和脑血流量的改善与认知恢复呈正相关。即使在存在高脂肪高果糖饮食诱导的合并症的血管性认知障碍和痴呆小鼠中,间歇性缺氧后处理也显示出对认知能力的保护作用。进一步蛋白质组学分析得出线粒体保护是其关键机制,特别是上调NDUFB8表达和线粒体复合物I活性。上述发现表明,间歇性缺氧是一种潜在的非侵入性预防和治疗血管性认知障碍和痴呆的策略。

血管性认知障碍和痴呆(VCID)是一种由慢性大脑低灌注引起的退行性神经系统疾病,目前尚无有效的针对病因的治疗方法。间歇性缺氧(IH)已被证明可增加小鼠的脑血流量(CBF),然而,目前尚不清楚这种干预措施是否对血管性认知障碍和痴呆有效。为此,实验使用双侧颈动脉狭窄方法构建了血管性认知障碍和痴呆模型,在建模前后分别进行间歇性缺氧干预治疗。结果发现间歇性缺氧可增加血管性认知障碍和痴呆模型小鼠前额叶皮质和海马的脑血流量、氧饱和度和微循环,而不会造成神经血管损伤。同时间歇性缺氧还可显著改善了血管性认知障碍和痴呆模型小鼠的认知功能,且间歇性缺氧后处理比预处理更为有效。小鼠脑微循环和脑血流量的改善与认知恢复呈正相关。即使在存在高脂肪高果糖饮食诱导的合并症的血管性认知障碍和痴呆小鼠中,间歇性缺氧后处理也显示出对认知能力的保护作用。进一步蛋白质组学分析得出线粒体保护是其关键机制,特别是上调NDUFB8表达和线粒体复合物I活性。上述发现表明,间歇性缺氧是一种潜在的非侵入性预防和治疗血管性认知障碍和痴呆的策略。

血管性认知障碍和痴呆(VCID)是一种由慢性大脑低灌注引起的退行性神经系统疾病,目前尚无有效的针对病因的治疗方法。间歇性缺氧(IH)已被证明可增加小鼠的脑血流量(CBF),然而,目前尚不清楚这种干预措施是否对血管性认知障碍和痴呆有效。为此,实验使用双侧颈动脉狭窄方法构建了血管性认知障碍和痴呆模型,在建模前后分别进行间歇性缺氧干预治疗。结果发现间歇性缺氧可增加血管性认知障碍和痴呆模型小鼠前额叶皮质和海马的脑血流量、氧饱和度和微循环,而不会造成神经血管损伤。同时间歇性缺氧还可显著改善了血管性认知障碍和痴呆模型小鼠的认知功能,且间歇性缺氧后处理比预处理更为有效。小鼠脑微循环和脑血流量的改善与认知恢复呈正相关。即使在存在高脂肪高果糖饮食诱导的合并症的血管性认知障碍和痴呆小鼠中,间歇性缺氧后处理也显示出对认知能力的保护作用。进一步蛋白质组学分析得出线粒体保护是其关键机制,特别是上调NDUFB8表达和线粒体复合物I活性。上述发现表明,间歇性缺氧是一种潜在的非侵入性预防和治疗血管性认知障碍和痴呆的策略。

https://orcid.org/0000-0002-0527-2852 (Xunming Ji); https://orcid.org/0000-0001-6711-3841 (Jia Liu)

关键词: 血管性认知障碍和痴呆, 间歇性缺氧, 双侧颈动脉狭窄, 慢性脑低灌注, 脑血管微循环, 高脂肪高果糖饮食, 认知功能, 线粒体呼吸链, 海马, 前额叶皮质

Abstract: Vascular cognitive impairment and dementia is a debilitating neurological disorder caused by chronic cerebral hypoperfusion, for which no effective causative treatments are currently available. Intermittent hypoxia has been shown to enhance cerebral blood flow in mice, but its efficacy in a model of vascular cognitive impairment and dementia remains unclear. In this study, we established a mouse model of vascular cognitive impairment and dementia by bilateral carotid artery stenosis. Intermittent hypoxia was induced before and after this stenosis. We found that intermittent hypoxia increased cerebral blood flow, oxygen saturation, and microcirculation in the prefrontal cortex and hippocampus in the model mice, without causing neurovascular damage. Additionally, intermittent hypoxia significantly improved cognitive function in the mouse model of vascular cognitive impairment and dementia, with perconditioning showing greater efficacy than preconditioning. Improvements in cerebral microcirculation and blood flow were positively correlated with cognitive recovery. Even in a mouse model of vascular cognitive impairment and dementia with comorbidities induced by a high-fat, high-fructose diet, intermittent hypoxic perconditioning demonstrated protective effects on cognitive function. Proteomic analysis indicated that mitochondrial protection is a key mechanism, particularly through upregulating NDUFB8 expression and increasing the activity of mitochondrial complex I. These findings suggest that intermittent hypoxia is a potential noninvasive strategy for the prevention and treatment of vascular cognitive impairment and dementia.

Key words: bilateral carotid artery stenosis, cerebrovascular microcirculation, chronic cerebral hypoperfusion, cognitive function, high fat-high fructose diet, hippocampus, intermittent hypoxia, mitochondrial respiratory chain, prefrontal cortex, vascular cognitive impairment and dementia