衰老,血管功能障碍和血脑屏障:揭示老年人中风的病理生理学
Saleh I Alaqel1,2, Mohd Imran3,4, Abida Khan3,4
1Department of Pharmaceutical Chemistry, College of Pharmacy, Northern Border University, 91911, Rafha, Saudi Arabia. saleh.alaqel@nbu.edu.sa.
Biogerontology
|March 5, 2025
概括
老龄化损害了血脑屏障 (BBB) 的完整性,恶化了中风的结果. 本综述详细介绍了老化和中风中的BBB功能障碍机制,强调了改善血管健康和神经保护的治疗目标.
科学领域:
- 神经科学是一个神经科学.
- 血管生物学 血管生物学
- 老年学是一门学科.
背景情况:
- 老龄化逐渐降低血管完整性和血脑屏障 (BBB) 功能,这是主要的中风风险因素.
- 大脑神经血管单元 (NVU) 的细胞和分子变化有助于BBB功能障碍,包括内皮细胞衰老,氧化应激和紧密结节蛋白降解.
- BBB的破坏加剧了中风的严重程度,并通过引起神经炎症,神经毒性和脑而损害了恢复.
研究的目的:
- 审查BBB功能障碍在衰老和中风背后的细胞和分子机制.
- 确定BBB破坏的分子驱动因素,如NLRP3炎症体,矩阵金属蛋白酶 (MMP) 和非编码RNA.
- 探索先进的成像技术和生物标志物,以评估BBB完整性和BBB修复和神经保护的新兴治疗策略.
主要方法:
- 关于衰老,BBB功能和中风病理生理学的最新文献的综述.
- 对促进BBB分解的细胞和分子机制的分析.
- 识别和讨论诊断工具 (成像,生物标志物) 和治疗干预措施.
主要成果:
- 与衰老相关的BBB功能障碍包括内皮衰老,氧化应激和紧密的结节损失.
- NLRP3炎症酶,MMP和非编码RNA是老化和中风中BBB破坏的关键分子媒介.
- 先进的成像 (MRI,PET) 和生物标志物 (克劳丁-5,PDGFRβ,白蛋白) 帮助评估BBB.
- 包括sirtuin调节器,iPSC-sEVs,NLRP3抑制剂,富含的水和神经类的治疗策略显示出对BBB修复的希望.
结论:
- 了解老化和中风中的BBB功能障碍机制对于开发有效的神经保护策略至关重要.
- 针对NLRP3炎症体等分子通路,并利用新型治疗方法,可以恢复BBB功能,改善中风恢复.
- 通过有针对性的干预措施改善血管健康,为减轻老年人群中风相关损害提供了一个有希望的方法.
相关概念视频
The Blood-brain Barrier
46.5K
Overview
46.5K
Aging
34
Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
34
Alzheimer's Disease: Overview
418
Alzheimer's Disease (AD) is a continually advancing neurodegenerative disorder, distinguished by escalating memory loss, cognitive dysfunction, and dementia. The disease unfolds in three stages: preclinical, mild cognitive impairment (MCI), and dementia. Its onset is insidious, and the progression gradual, with the cause not well explained by other disorders.
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...
418
Cognitive Development During Adulthood
43
Cognitive development continues throughout adulthood, undergoing significant shifts across early, middle, and late stages. Individual transition occurs from adolescent idealism to pragmatic and adaptable thinking in early adulthood. During this period, individuals learn to integrate personal beliefs with the recognition that other perspectives are equally valid. Exposure to the complexities of modern society, diverse experiences, and higher education contribute to this adaptive thought process,...
43


