Alzheimer's disease causes
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
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Overview
Causes
The following are the causes of Alzheimer's dementia (AD):
Cause | Specific characteristics | Percentage of cases |
Chromosomal (Down syndrome) |
|
<1% |
All familial | ~25% | |
|
|
15%-25% |
|
|
<2% |
Unknown (includes genetic/environment interactions) |
|
~75% |