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Study shows that major Alzheimer's risk gene causes alterations in shapes of brain protein deposits
Date:7/14/2010

Researchers at Mount Sinai School of Medicine have used a newly discovered class of biomarkers to investigate the possibility that the shape of brain protein deposits is different in people with Alzheimer's who have the highest-risk gene type than in those with the condition who have a neutral risk gene type. The study is being presented July 14 at the 2010 Alzheimer's Association International Conference on Alzheimer's Disease in Honolulu, Hawaii.

Sam Gandy, MD, PhD, the Mount Sinai Professor in Alzheimer's Disease Research, Professor of Neurology and Psychiatry, and Associate Director of the Alzheimer's Disease Research Center at Mount Sinai School of Medicine, led the study. Mount Sinai labs led by Patrick R. Hof, MD, Regenstreif Professor of Neuroscience and Vice-Chair for Translational Neuroscience of the Department of Neuroscience and Dara L. Dickstein, PhD, Assistant Professor, Neuroscience also collaborated on the study.

Apolipoprotein E (APOE) is a gene containing instructions needed to make a protein that helps carry cholesterol in the bloodstream. The APOE gene, which comes in several different forms, is related to increased risk of developing Alzheimer's disease. People with APOE ε4/ε4 gene type have the highest risk of developing the disease and people with APOE ε3/ε3 have a neutral risk. Discovering the important mechanisms underlying how APOE ε4/ε4 increases Alzheimer's risk has been one of the most vexing mysteries facing Alzheimer's researchers for over a decade.

Luminescent conjugated oligothiophenes (LCOs) or luminescent conjugated polymers (LCPs), the newly discovered class of biomarkers, can stick to protein structures in the body and emit colors reflecting the different shapes or forms of the proteins. Among other uses, LCPs/LCOs are currently being employed in test tubes, animal models, and autopsied Alzheimer's brains to study the structure of proteins deposits caused by the dis
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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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