Alzheimers disease?

I am doing a report on Alzheimers Disease, and I obligation to know a few things

1) What percentage of the population have Alzheimers at different ages?
2) What happen inside the brain during the different stages of Alzheimers?
3) How long should a character beside respectively stage of the disease expect to live?


PLEASE INCLUDE YOUR SOURCES!! I NEED A BIBLIOGRAPY!!

Answers:
Here are some partial answers:

An Alzheimer's diagnosis cuts a being's remaining vivacity expectancy contained by partially.

This is from a study of 521 empire next to not long diagnosed Alzheimer disease. They found that the median survival length be 4.2 years for men and 5.7 years for women, just about partially what a personality of matching age who did not enjoy the disease would be expected to live.

It is the most adjectives rationale of dementia and affects 4.5 million Americans. However, according to the study, nearby have be no firm estimate of freshly how long an Alzheimer's merciful have to live.

Dr. Eric Larson and colleagues at the University of Washington followed 521 men and women over 60 who have be just now diagnosed beside Alzheimer's disease.
Those diagnosed within their 70s lived longer than those diagnosed at age 85 or elder, said Larson, director of the Center for Health Studies at the Group Health Cooperative surrounded by Seattle and a former medical director of the University of Washington Medical Center.

The study be funded by the National Institute on Aging and published in the Annals of Internal Medicine.

In a composition published within the September 15, 2004, issue of Cerebral Cortex by Buckner and colleagues examined whether typical aging and Alzheimer's disease are on a continuum or distinct. The researchers used MRI to method the volume of two regions of the brain previously related beside age-associated change: the corpus callosum, and the medial temporal lobe.

Comparing volume in immature adults, elder adults short dementia, and individuals beside mild dementia of the Alzheimer type, they found clear differences between the effects of conventional aging and Alzheimer's disease. The corpus callosum be smaller contained by elder adults, regardless of whether they have dementia. In contrast, volume reduction within the hippocampus be markedly accelerate and larger within culture near Alzheimer's disease.

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