parent to child. Research has supported that the disease is the result of mutations in one of three genes: APP, PSEN1, or PSEN2 and when altered, abnormal protein deposits form amyloid plaques and tau tangles in the brain provoking the loss of connections between nerve cells, or neurons, in the brain (Marx, 1998). The causes of late-onset Alzheimer disease however are less clear however may be due to a combination of gene mutations along with lifestyle and environmental factors. Extensive studies have…
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