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  2. Biochemistry of Alzheimer's disease - Wikipedia

    en.wikipedia.org/wiki/Biochemistry_of_Alzheimer's...

    The biochemistry of Alzheimer's disease, the most common cause of dementia, is not yet very well understood. Alzheimer's disease (AD) has been identified as a proteopathy : a protein misfolding disease due to the accumulation of abnormally folded amyloid beta (Aβ) protein in the brain . [ 1 ]

  3. Amyloid plaques - Wikipedia

    en.wikipedia.org/wiki/Amyloid_plaques

    Amyloid beta (Aβ) is a small protein, most often 40 or 42 amino acids in length, that is released from a longer parent protein called the Aβ-precursor protein (APP). [24] APP is produced by many types of cell in the body, but it is especially abundant in neurons .

  4. New study challenges amyloid-beta theory on cause for ... - AOL

    www.aol.com/study-challenges-amyloid-beta-theory...

    A main theory behind the cause of Alzheimer’s disease is the build-up of the protein amyloid-beta in the brain. Researchers from the University of Cincinnati provide evidence suggesting it’s ...

  5. Shifts in brain activity may signal Alzheimer's long before ...

    www.aol.com/shifts-brain-activity-may-signal...

    The study found that increased levels of both amyloid-beta and tau proteins in the brain may lead to changed brain activity before the cognitive symptoms of Alzheimer’s disease appear. Focusing ...

  6. Alzheimer's disease - Wikipedia

    en.wikipedia.org/wiki/Alzheimer's_disease

    Regarding incidence, cohort longitudinal studies (studies where a disease-free population is followed over the years) provide rates between 10 and 15 per thousand person-years for all dementias and 5–8 for AD, [235] [236] which means that half of new dementia cases each year are Alzheimer's disease. Advancing age is a primary risk factor for ...

  7. Some people have Alzheimer’s without symptoms: What ... - AOL

    www.aol.com/lifestyle/people-alzheimer-without...

    “A study from 2019 reported that a woman carrying the presenilin 1 (PSEN1) mutation, a genetic cause of early-onset Alzheimer’s disease, did not develop dementia in her 40s as others with the ...

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