Sharma Veerta, Verma Reet, Singh Thakur Gurjeet
Chitkara College of Pharmacy, Chitkara University, Rajpura, 140401, Punjab, India.
Mol Biol Rep. 2025 Apr 23;52(1):416. doi: 10.1007/s11033-025-10520-4.
Alzheimer's Disease (AD) is a neurodegenerative condition characterised by cognitive decline and memory impairment. Recent research highlights the important role of hypoxia, a state of insufficient oxygen availability, in exacerbating AD pathogenesis.
Through the use of a number of different search engines like Scopus, PubMed, Bentham, and Elsevier databases, a literature review was carried out for investigating the role of hypoxia mediated pathobiology in AD. Only peerreviewed articles published in reputable journals in English language were included. Conversely, non-peer-reviewed articles, conference abstracts, and editorials were excluded, along with studies lacking experimental or clinical relevance or those unavailable in full text.
Hypoxia exacerbates core pathological features such as oxidative stress, neuroinflammation, mitochondrial dysfunction, amyloid-beta (Aβ) dysregulation, and hyperphosphorylation of tau protein. These interlinked mechanisms establish a self-perpetuating cycle of neuronal damage, accelerating disease progression. Addressing hypoxia as a modifiable risk factor offers potential for both prevention and treatment of AD. Exploring hypoxia and the HIF signalling pathway may help counteract the neuropathological and symptomatic effects of neurodegeneration.
阿尔茨海默病(AD)是一种以认知衰退和记忆障碍为特征的神经退行性疾病。近期研究强调了缺氧(一种氧气供应不足的状态)在加剧AD发病机制方面的重要作用。
通过使用Scopus、PubMed、Bentham和爱思唯尔数据库等多个不同的搜索引擎,进行了一项文献综述,以研究缺氧介导的病理生物学在AD中的作用。仅纳入在知名期刊上发表的英文同行评审文章。相反,非同行评审文章、会议摘要和社论被排除在外,同时排除缺乏实验或临床相关性或无法获取全文的研究。
缺氧会加剧氧化应激、神经炎症、线粒体功能障碍、β淀粉样蛋白(Aβ)失调和tau蛋白过度磷酸化等核心病理特征。这些相互关联的机制建立了一个神经元损伤的自我延续循环,加速了疾病进展。将缺氧作为一个可改变的风险因素加以应对,为AD的预防和治疗提供了潜力。探索缺氧和缺氧诱导因子信号通路可能有助于对抗神经退行性变的神经病理和症状影响。