Alzheimer's Disease

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Risk Factors


The risk for Alzheimer's disease increases with each decade of adult life. People with a family history of Alzheimer's have a greater risk, implying that a genetic factor is involved. A clear inherited pattern of AD exists in less than 10% of cases. Some involve a mutation of the gene for the protein APP, found on chromosome 21. Nearly all people with Down's syndrome (trisomy 21) who live into their 40s develop the disease. Others involve a defect on chromosome 14. The gene for...Read the full article