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Small clumps of tau protein disrupt memory; Animal study suggests possible target for Alzheimer’s disease therapies

Date:
November 17, 2010
Source:
Society for Neuroscience
Summary:
Too many small aggregates of a protein called tau in the brain can directly interfere with memory, according to new animal research.

Too many small aggregates of a protein called tau in the brain can directly interfere with memory, according to new animal research presented at Neuroscience 2010, the annual meeting of the Society for Neuroscience, held in San Diego.

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"Our findings are important because they suggest that tau may be a good target for developing therapies against Alzheimer's and related diseases," said senior author Ottavio Arancio, PhD, of Columbia University.

Many neurodegenerative diseases are marked by an accumulation of protein aggregates in the brain, and Alzheimer's disease is no exception. The two most common aggregating proteins associated with Alzheimer's disease are amyloid- beta and tau, which form the neural plaques and tangles that are hallmarks of the disease. Recently, scientists have begun to focus on some of the smaller, still-soluble forms of these protein aggregates, called oligomers, which may be especially toxic to neurons.

Arancio and his colleagues found that tau oligomers impaired fearful memories in mice. Tau oligomers also disrupted synaptic plasticity -- cellular events important for memory formation.

"Our findings suggest that tau is critically involved in the development of Alzheimer's disease -- and that reducing the abnormal aggregation of the protein may prove to be an effective treatment approach," Arancio said.

Research was supported by the Alzheimer's Drug Discovery Foundation, the National Institutes of Health, and Oligomerix, Inc.


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The above story is based on materials provided by Society for Neuroscience. Note: Materials may be edited for content and length.


Cite This Page:

Society for Neuroscience. "Small clumps of tau protein disrupt memory; Animal study suggests possible target for Alzheimer’s disease therapies." ScienceDaily. ScienceDaily, 17 November 2010. <www.sciencedaily.com/releases/2010/11/101116204837.htm>.
Society for Neuroscience. (2010, November 17). Small clumps of tau protein disrupt memory; Animal study suggests possible target for Alzheimer’s disease therapies. ScienceDaily. Retrieved January 30, 2015 from www.sciencedaily.com/releases/2010/11/101116204837.htm
Society for Neuroscience. "Small clumps of tau protein disrupt memory; Animal study suggests possible target for Alzheimer’s disease therapies." ScienceDaily. www.sciencedaily.com/releases/2010/11/101116204837.htm (accessed January 30, 2015).

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