Lack of sleep boosts levels of Alzheimer’s proteins

Lack of sleep boosts levels of Alzheimer’s proteins

Chronic poor sleep has been linked to cognitive decline. A new study from the School of Medicine shows that a sleepless night causes levels of the Alzheimer’s protein amyloid beta to rise faster than the brain’s waste-disposal system can remove it. Persistently high levels of the protein can set off a cascade of brain changes leading to dementia.
Brain imaging links Alzheimer’s decline to tau protein

Brain imaging links Alzheimer’s decline to tau protein

Using a new imaging agent that binds to tau protein and makes it visible in positron emission tomography (PET) scans, scientists at Washington University School of Medicine in St. Louis have shown that measures of tau are better markers of the cognitive decline characteristic of Alzheimer’s than measures of amyloid beta seen in PET scans.
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