NeuralCipher Research overview
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Sleep and circadian rest-activity rhythm alterations are recognised as inherent clinical features of various neurodegenerative diseases. Traditionally viewed as secondary manifestations of neurodegeneration, recent studies have revealed that disruptions in circadian rhythm and sleep-wake cycles can precede clinical symptoms and significantly contribute to the underlying pathophysiological progression. In this review, we summarise recent research on the impact of sleep and circadian rhythm alterations in ageing and major neurodegenerative diseases, including Alzheimer's, Parkinson's, Huntington's, amyotrophic lateral sclerosis, and frontotemporal dementia, highlighting the roles of melatonin, orexin, and melanin-concentrating hormone (MCH) systems as key regulators at the intersection of sleep and neurodegeneration. We argue that sleep and circadian alterations may serve as early biomarkers and therapeutic targets for these diseases.
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