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Alzheimer disease is a degenerative disease of the brain that causes dementia, which is a gradual loss of memory, judgment, and ability to function. This disorder usually appears in people older than age 65, but less common forms of the disease appear earlier in adulthood. Memory loss is the most common sign of Alzheimer disease. Forgetfulness may be subtle at first, but the loss of memory worsens over time until it interferes with most aspects of daily living. Even in familiar settings, a person with Alzheimer disease may get lost or become confused. Routine tasks such as preparing meals, doing laundry, and performing other household chores can be challenging. Additionally, it may become difficult to recognize people and name objects. Affected people increasingly require help with dressing, eating, and personal care. As the disorder progresses, some people with Alzheimer disease experience personality and behavioral changes and have trouble interacting ... more
The Alzheimer disease-6 (AD6) designation refers to a susceptibility locus on chromosome 10q. Although significant associations with several candidate genes on chromosome 10 have been reported, these findings have not been consistently replicated, and they remain controversial (Grupe et al., 2006).
In a review of schizophrenia, van Os and Kapur (2009) noted that in Japan the term schizophrenia was abandoned and the illness is now called integration-dysregulation syndrome.