The publication detail shows the title, authors (with indicators showing other profiled authors), information on the publishing organization, abstract and a link to the article in PubMed. This abstract is what is used to create the fingerprint of the publication. If any grants are referenced by the publication, they will be listed here as well.
Reversible memory loss in a mouse transgenic model of Alzheimer's disease.
Department of Neurology, University of Minnesota, Minneapolis 55455, USA.
The Journal of neuroscience : the official journal of the Society for Neuroscience 2002;22(15):6331-5.
Alzheimer's disease (AD) is a neurodegenerative condition, believed to be irreversible, characterized by inexorable deterioration of memory and intellect, with neuronal loss accompanying amyloid plaques and neurofibrillary tangles. In an amyloid precursor protein transgenic mouse model, Tg2576, little or no neuronal loss accompanies age-related memory impairment or the accumulation of Abeta, a 40-42 aa polypeptide found in plaques. Recently, we have shown inverse correlations between brain Abeta and memory in Tg2576 mice stratified by age (Westerman et al., 2002). Broadening the age range examined obscured this relationship, leading us to propose that small, soluble assemblies of Abeta disrupt cognitive function in these mice. Here we show that memory loss can be fully reversed in Tg2576 mice using intraperitoneally administered BAM-10, a monoclonal antibody recognizing the N terminus of Abeta. The beneficial effect of BAM-10 was not associated with a significant Abeta reduction, but instead eliminated the inverse relationship between brain Abeta and memory. We postulate that BAM-10 acts by neutralizing Abeta assemblies in the brain that impair cognitive function. Our results indicate that a substantial portion of memory loss in Tg2576 mice is not permanent. If these Abeta assemblies contribute significantly to memory loss in AD, then successfully targeting them might improve memory in some AD patients.
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