A Logical Causative Factor in Alzheimer's

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Dayan B. Goodenowe and colleagues report in the November 2007 issue of the Journal of Lipid Research that people with Alzheimer's disease and related conditions exhibit decreased blood levels of an important brain chemical called ethanolamine plasmalogen, even at the very early stages of the disease. The scientists have also found that this decrease is more pronounced when the symptoms are more severe.

Alzheimer's disease and related conditions, grouped under the name dementia of the Alzheimer's type (DAT), mostly affect elderly people. These conditions are not easily diagnosed because they can arise from many different causes, some of which that are not well known. Although the relationship between blood levels of ethanolamine plasmalogens and the severity of DAT is not completely understood, the new discovery may improve the diagnosis of DAT and help patients make decisions about how to cope with the disease.

The scientists suggest that the observed decrease of ethanolamine plasmalogens may result in decreased release and subsequent decreased activity of acetylcholine, a critical brain chemical involved in memory formation and whose activity is known to be reduced in DAT patients. So correcting the ethanolamine plasmalogen deficit in DAT may slow or correct the acetylcholine deficit in DAT patients.

The researchers conclude that clinical trials involving restoration of ethanolamine plasmalogens should be undertaken to determine its efficacy in the treatment and/or prevention of DAT. http://www.medicalnewstoday.com

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