Alzheimer's disease & dementia

What happens in brain cells affected by Alzheimer's disease?

Affecting over 50 million people, Alzheimer's disease is the most common form of dementia and primarily occurs in people over the age of 65. The pathology of the disease in the brain is mainly characterized by two factors: ...

Neuroscience

What happens around an Alzheimer plaque?

The brains of people living with Alzheimer's are riddled with plaques: protein aggregates consisting mainly of amyloid beta. Despite decades of research, the real contribution of these plaques to the disease process is still ...

Alzheimer's disease & dementia

New imaging method sheds light on Alzheimer's disease

To understand what happens in the brain when Alzheimer's disease develops, researchers need to be able to study the molecular structures in the neurons affected by Alzheimer's disease. Researchers at Lund University in Sweden ...

Alzheimer's disease & dementia

Brain changes may help track dementia, even before diagnosis

Even before a dementia diagnosis, people with mild cognitive impairment may have different changes in the brain depending on what type of dementia they have, according to a study published in the September 11, 2019, online ...

Alzheimer's disease & dementia

New drug targets early instigator of Alzheimer's disease

Over a hundred years after they were first identified, two ominous signposts of Alzheimer's disease (AD) remain central topics of research—both formed by sticky accumulations of protein in the brain. Amyloid beta solidifies ...

Neuroscience

Tissue model reveals role of blood-brain barrier in Alzheimer's

Beta-amyloid plaques, the protein aggregates that form in the brains of Alzheimer's patients, disrupt many brain functions and can kill neurons. They can also damage the blood-brain barrier—the normally tight border that ...

Alzheimer's disease & dementia

Blood tests for Alzheimer's: Why new studies are encouraging

Many people who have problems with their memory, especially if they are elderly, worry that they have Alzheimer's disease, which afflicts at least 5.5 million people in the U.S. and brings tremendous burdens to families as ...

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