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The Association between Insomnia-Like Sleep Pattern Changes and Cognitive Dysfunction: Possible Mechanism and
Kangzhi Chen1, Yefan Lv1, Xiaoyan Long1
1Department of Neurology, Xiangya Hospital, Central South University, Changsha,China.
Insomnia and cognitive decline are rising. This review explores how sleep changes in insomnia may signal early Alzheimer's disease (AD) and identifies potential therapeutic targets for intervention.
Area of Science:
- Neuroscience
- Sleep Medicine
- Gerontology
Background:
- Increasing prevalence of sleep disorders, particularly insomnia, and cognitive dysfunction.
- Established links between disrupted sleep (continuity, architecture) and cognitive impairment.
- No cure for Alzheimer's disease (AD) necessitates early intervention strategies.
Purpose of the Study:
- Focus on altered sleep patterns in insomnia.
- Summarize pathways linking insomnia to cognitive impairment.
- Identify sleep changes as potential biomarkers for cognitive decline and therapeutic targets.
Main Methods:
- Literature review of studies on insomnia, cognitive function, and Alzheimer's disease.
- Analysis of potential biological and neurological pathways.
- Synthesis of evidence for sleep alterations as biomarkers and therapeutic targets.
Main Results:
- Insomnia is associated with significant alterations in sleep continuity and architecture.
- Specific sleep pattern changes may serve as early indicators of cognitive decline.
- Several pathways implicate sleep disruption in the pathophysiology of cognitive impairment.
Conclusions:
- Altered sleep patterns in insomnia are strongly linked to cognitive impairment.
- Sleep changes may be valuable preclinical biomarkers for Alzheimer's disease.
- Targeting sleep disturbances offers a promising therapeutic avenue for preventing or delaying cognitive decline.
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