Sleep Disturbances in MCI and AD: Neuroinflammation as a Possible Mediating Pathway

Area of Science:

• Neuroscience
• Gerontology
• Sleep Medicine

Background:

• Mild cognitive impairment (MCI) and Alzheimer's disease (AD) are prevalent in the elderly.
• Sleep disturbances are frequently observed in individuals with MCI and AD.
• Neuroinflammation is a key feature in the pathology of MCI and AD.

Purpose of the Study:

• To review current research on the relationship between sleep disturbances and neuroinflammation in MCI and AD.
• To explore potential pathways linking sleep and AD pathology.
• To identify the temporal relationship between sleep disturbances and AD progression.

Main Methods:

• Systematic literature review of studies investigating sleep disturbances and neuroinflammation in MCI and AD.
• Analysis of existing evidence on the bidirectional relationship between sleep, neuroinflammation, and cognitive decline.
• Synthesis of findings to understand the temporal dynamics of these factors.

Main Results:

• Strong evidence suggests multiple pathways connect sleep disturbances to AD pathology.
• Neuroinflammation is implicated in the progression of both MCI and AD.
• The precise temporal order of sleep disturbances and neuroinflammation in AD pathogenesis remains unclear.

Conclusions:

• Understanding the interplay between sleep disturbances and neuroinflammation is crucial for MCI and AD.
• Further research is needed to elucidate the temporal direction of the sleep-AD relationship.
• Identifying therapeutic targets for sleep and neuroinflammation may offer novel prevention strategies for MCI and AD.