Outline Of Alzheimer 's Disease

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Shammai Topper Dr. Milton Schiffenbauer Research Topics in Biology GSB 493 CA Alzheimer’s disease Introduction Alzheimer’s disease is a chronic neurodegenerative disease that accounts for sixty to seventy percent of Dementia cases. It is characterized by the development of amyloid plaques and neurofibrillary tangles, the loss of connection between neurons in the brain and the death of nerve cells. There are two types of Alzheimer’s Early on-set Alzheimer’s which occur from the ages of thirty to sixty is very rare and makes up less than five percent of the cases of Alzheimer’s . The second type is Late on-set Alzheimer’s which is the most common type and it is found in those of ages sixty and up. The progression of Alzheimer’s is a lengthy progress from the time of diagnosis the average life expectancy is three to nine years. In the early stages people have difficulty with short term memory loss as the disease progresses symptoms include difficulties with language, disorientation, mood swings, loss of motivation, loss of self-care and behavioral issues. As Alzheimer’s progresses a person slowly withdraws from family life and society due to the jumbled state of their memory. On a physical level the body’s physical function slowly degenerates and eventually leads to death. Causes The cause of Alzheimer’s is still mostly unknown except for one to five percent where genetic mutations have been identified as the cause. However there are many competing hypotheses that try to
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