Learning and Memory in Transgenic Mice Modeling Alzheimer's Disease
Author(s) -
Karen H. Ashe
Publication year - 2001
Publication title -
learning and memory
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.228
H-Index - 136
eISSN - 1549-5485
pISSN - 1072-0502
DOI - 10.1101/lm.43701
Subject(s) - genetically modified mouse , transgene , dementia , neuroscience , alzheimer's disease , amyloid precursor protein , disease , psychology , amyloid (mycology) , cognition , biology , pathology , medicine , genetics , gene
Recent advances in behavioral analyses of transgenic mouse models of Alzheimer's disease (AD) are discussed, and their impact on our understanding of the molecular basis of cognitive impairment in AD is considered. Studies of the relationship between memory and A Beta in transgenic mice expressing the amyloid precursor protein (APP) and its variants suggest that aging promotes the formation of soluble A Beta assemblies mediating negative effects on memory. A significant component of memory loss in APP transgenic mice is apparently caused by soluble A Beta assemblies, but whether and how much of the dementia within individuals afflicted with AD is caused by these A Beta species is unclear. Future studies in composite transgenic mice developing amyloid plaques, neurofibrillary tangles, and other AD pathology may allow for the determination of the relative contribution of A Beta and non-A Beta components to dementia.
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