Los Angeles: A common genetic abnormality predisposes one to Alzheimer`s, a new study has shown.Scientists at the University of California-Los Angeles (UCLA) have discovered a new genetic risk factor for Alzheimer`s disease by screening people`s DNA and then using an advanced type of scan to visualize their brains` connections.Alzheimer`s disease, the most common cause of dementia in the elderly, erodes these connections, which we rely on to support thinking, emotion and memory. With no known cure for the disease, the 20 million Alzheimer`s sufferers worldwide lack effective treatment.And we are all at risk: Our chance of developing Alzheimer`s doubles every five years after age 65.The UCLA researchers discovered a common abnormality in our genetic code that increases the risk of Alzheimer`s. To find the gene, they used a new imaging method that screens the brain`s connections -- the wiring, or circuitry, that communicates information.
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