Scientists Spot 4 New Alzheimer's Genes
SUNDAY, April 3 -- The identification of four new genes associated with Alzheimer's disease is a major advance that will help improve understanding of what causes the condition, say scientists who pinpointed the genes.
Each of the genes individually contributes to the risk of developing Alzheimer's disease, according to the study in the April 3 issue of Nature Genetics.
The four genes -- MS4A, CD2AP, CD33 and EPHA1 -- were identified after the team of scientists from 44 universities and research institutions in the United States analyzed genetic data from more than 54,000 people.
Until this discovery, only four genes had been confirmed to be associated with Alzheimer's.
"This is the culmination of years of work on Alzheimer's disease by a large number of scientists, yet it is just the beginning in defining how genes influence memory and intellectual function as we age. We are all tremendously excited by our progress so far, but much remains to be done, both in understanding the genetics and in defining how these genes influence the disease process," study leader Gerard D. Schellenberg, of the University of Pennsylvania School of Medicine, said in a Penn Medicine news release.
He and his colleagues in the Alzheimer's Disease Genetics Consortium also contributed to the identification of a fifth Alzheimer's-related gene by other groups of scientists in Europe and the United States.
The U.S. National Institute on Aging has more about Alzheimer's disease.
Posted: April 2011
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