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Full-Text Articles in Life Sciences

An Exploration Of Sleep Fragmentation And Sleep Enhancement In Mice, Frannie Salisbury Jan 2021

An Exploration Of Sleep Fragmentation And Sleep Enhancement In Mice, Frannie Salisbury

Lewis Honors College Capstone Collection

Alzheimer’s Disease (AD) is a neurodegenerative disease that is can be defined by amyloid beta (Aβ) plaques, neurofibrillary tangles, and neuronal death. AD patients have characteristically fragmented sleep, with frequent nighttime awakenings and daytime naps. Decreased clearance of Aβ from disrupted sleep may be a contributing factor in the progression of AD. This study investigated how sleep fragmentation effected the progression of AD in 3xTgAD mice. Results showed that sleep fragmented mice had significantly more Aβ build-up in the hippocampus and thus greater progression of AD when compared to control mice. Improving sleep may be one way to reduce the …


Effects Of Sleep Fragmentation On The Progression Of Alzheimer’S Disease, Lindsay Beechem Jan 2021

Effects Of Sleep Fragmentation On The Progression Of Alzheimer’S Disease, Lindsay Beechem

Lewis Honors College Capstone Collection

Alzheimer’s Disease (AD) is a neurodegenerative disease that is characterized by amyloid-beta (Aβ) plaques, neurofibrillary tangles, neuronal death, and profound cognitive impairment. Previous studies have indicated that increased Aβ and alterations in the daily sleep-wake cycle are early risk factors and possible predictors of AD. Acute sleep deprivation decreases Aβ clearance, and increased Aβ levels stimulate neuroinflammation and accelerate loss of neurons and synapses. Likewise, it has been shown that there are higher rates of sleep disorders in AD patients. However, limited studies have investigated whether sleep fragmentation accelerates the progression of AD pathology. This partial review will discuss experiments …