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Dementia Of The Alzheimers Type Diagnostic Criteria

Medical Discovery News: Blood test may detect Alzheimer's

We desperately need new and more sensitive tests to diagnose Alzheimer’s disease at earlier stages if we want to have any chance of treating the disease and preventing its progression. A recent study gives some hope that such a test is possible and may be on its way. A blood test developed by scientists in Japan and Australia was used to predict more than 90 percent of cases of Alzheimer’s among a group of 373 patients.

Alzheimer’s disease (AD) is the most common type of dementia among people aged 65 or older. The impairment begins slowly, with difficulties in remembering things or people’s names and confusion which gradually worsens, until patients may not recognize family members and have trouble speaking, reading or writing. There is no cure, and the current drugs seem to only slow progression for a limited time.

The exact origin of AD is not known, but it is likely caused by a combination of genetic, lifestyle and environmental factors. As the disease progresses, brain cells get damaged and die, and the brains of AD patients shrink significantly. The remaining brain cells appear to have many fewer connections with other cells than are usually found in a healthy brain.