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- W3012085399 abstract "Abstract Epidemiological studies indicate that obstructive sleep apnoea is a strong risk factor for the development of Alzheimer’s disease but the mechanisms of the risk remain unclear. We developed a method of modelling obstructive sleep apnoea in mice that replicates key features of human obstructive sleep apnoea: altered breathing during sleep, sleep disruption, moderate intermittent hypoxemia and cognitive impairment. When we induced obstructive sleep apnoea in a familial Alzheimer’s disease model, the mice displayed exacerbation of cognitive impairment and pathological features of Alzheimer’s disease, including increased levels of amyloid-beta and inflammatory markers, as well as selective degeneration of cholinergic basal forebrain neurons. These pathological features were not induced by chronic hypoxia or sleep disruption alone. Our results also revealed that the neurodegeneration was mediated by the oxygen-sensitive p75 neurotrophin receptor and hypoxia inducible factor 1 alpha activity. Furthermore, restoring blood oxygen levels during sleep to prevent intermittent hypoxia prevented the pathological changes induced by the OSA. These findings provide a signalling mechanism by which obstructive sleep apnoea induces cholinergic basal forebrain degeneration and could thereby increase the risk of developing Alzheimer’s disease, as well as providing a rationale for testing a range of possible prophylactic treatment options for people with obstructive sleep apnoea and hypoxia including increased compliance of continuous positive airway pressure therapy." @default.
- W3012085399 created "2020-03-23" @default.
- W3012085399 creator A5000243111 @default.
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- W3012085399 date "2020-03-14" @default.
- W3012085399 modified "2023-10-17" @default.
- W3012085399 title "Cholinergic basal forebrain degeneration due to obstructive sleep apnoea increases Alzheimer’s pathology in mice" @default.
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- W3012085399 doi "https://doi.org/10.1101/2020.03.12.989848" @default.