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Commonly-prescribed drugs may influence the onset and progression of Alzheimer's disease
Date:6/12/2013

Multiple drug classes commonly prescribed for common medical conditions are capable of influencing the onset and progression of Alzheimer's disease, according to researchers at The Mount Sinai Medical Center. The findings are published online in the journal PLoS One.

Led by Giulio Maria Pasinetti, MD, PhD, the Saunders Family Chair and Professor in Neurology at Mount Sinai, a research team used a computer algorithm to screen 1,600 commercially-available medications to assess their impact on the brain accumulation of beta-amyloid, a protein abnormally accumulated in the brain of Alzheimer's disease and implicated in neurodegeneration. They found that currently-available medications prescribed for conditions such as hypertension, depression, and insomnia were found to either to block or to enhance the accumulation of beta-amyloid, the component of amyloid plaques.

"This line of investigation will soon lead to the identification of common medications that might potentially trigger conditions associated with the prevention, or conversely the onset, of Alzheimer's disease," said Dr. Pasinetti. "They may be a novel reference for physicians to consider when prescribing the most appropriate drug, particularly in subjects at high risk for Alzheimer's disease."

To validate the screening protocol, Dr. Pasinetti and his colleagues administered these drugs in mice that were genetically engineered to develop the hallmark amyloid plaques associated with Alzheimer's disease. After six months of treatment with blood pressure medicines, amyloid plaques and neurodegeneration were significantly reduced in the mice. One such medicine was Carvedilol, now under clinical investigation in Alzheimer 's disease with the intent to slow down memory deterioration.

"In recent years, amyloid plaques have become one of the main focal points in the search to understand and to treat Alzheimer's disease," said Dr. Pasinetti. "Thus, identifying novel dr
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Contact: Mount Sinai Press Office
newsmedia@mssm.edu
212-241-9200
The Mount Sinai Hospital / Mount Sinai School of Medicine
Source:Eurekalert

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