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Commonly Prescribed Drugs May Influence the Onset and Progression of Alzheimer’s Disease
Date:6/12/2013

New York, NY (PRWEB) June 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 block or 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 drug treatments that prevent harmful beta-amyloid generation will help in the development of treatments for Alzheimer’s disease. For example, one very exciting finding of our study is that Carvedilol, already approved for treatment of hypertension, may immediately become a promising drug for the treatment of Alzheimer’s as well.”

The authors discuss the limitations of the research, noting that studies must be immediately verified in human-safety studies that examine the effects of the drugs independent of the original indication. Dr. Pasinetti hopes these findings will lead to multiple clinical trials in the future to identify preventive drugs, which will need to be prescribed at tolerable dosages.

“If we can repurpose drugs currently used for different indications, such as lowering blood pressure, this could have dramatic implications for this population,” said Dr. Pasinetti.

The study was supported by a grant from the National Institutes of Health (Grant UO1-AG029310).

About The Mount Sinai Medical Center

The Mount Sinai Medical Center encompasses both The Mount Sinai Hospital and Icahn School of Medicine at Mount Sinai. Established in 1968, the Icahn School of Medicine at Mount Sinai is one of the leading medical schools in the United States. The Icahn School of Medicine is noted for innovation in education, biomedical research, clinical care delivery, and local and global community service. It has more than 3,400 faculty members in 32 departments and 14 research institutes, and ranks among the top 20 medical schools both in National Institutes of Health (NIH) funding and by U.S. News & World Report.

The Mount Sinai Hospital, founded in 1852, is a 1,171-bed tertiary- and quaternary-care teaching facility and one of the nation’s oldest, largest and most-respected voluntary hospitals. In 2012, U.S. News & World Report ranked The Mount Sinai Hospital 14th on its elite Honor Roll of the nation’s top hospitals based on reputation, safety, and other patient-care factors. Mount Sinai is one of just 12 integrated academic medical centers whose medical school ranks among the top 20 in NIH funding and by U.S. News & World Report and whose hospital is on the U.S. News & World Report Honor Roll. Nearly 60,000 people were treated at Mount Sinai as inpatients last year, and approximately 560,000 outpatient visits took place.

For more information, visit http://www.mountsinai.org.
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Read the full story at http://www.prweb.com/releases/2013/6/prweb10827566.htm.


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