Thursday, February 9, 2012

New opportunities for studying Alzheimer's

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(  the study have important implications for therapy )
For decades, researchers have debated whether Alzheimer's disease starts independently in vulnerable brain regions at different times, or if it begins in one region and then spreads to neuroanatomically connected areas. A new study by Columbia University Medical Center (CUMC) researchers strongly supports the latter, demonstrating that abnormal tau protein, a key feature of the neurofibrillary tangles seen in the brains of those with Alzheimer's, propagates along linked brain circuits, ''jumping'' from neuron to neuron. ''Earlier research, including functional MRI studies in humans, have also supported this pattern of spread,'' said study coauthor Scott A. Small, MD, professor of neurology in the Sergievsky Center and in the Taub Institute for Research on Alzheimer's Disease and the Aging Brain at CUMC.  ''But these various findings do not definitively show that Alzheimer's spreads directly from one brain region to another.'' The researchers also found evidence suggesting that the abnormal tau protein was moving from neuron to neuron across synapses, the junctions that these cells use to communicate with each other. Continue to read: domainb.com


Read more here: http://www.bnd.com/2012/02/07/2047945/obama-to-seek-more-alzheimers.html#storylink=cpy


Vitamin and mineral supplements may reduce colon cancer risk

Regular use of vitamin and mineral supplements could help to reduce the risk of colon cancer and protect against carcinogens, according to new research in rats. Read more: nutraingredients.com 

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