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- W1448457390 endingPage "431" @default.
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- W1448457390 abstract "Alzheimer's disease (AD) studies typically focus on the extracellular impact of the amyloid-beta (Abeta) protein, however recent findings also implicate intracellular Abeta (iAbeta) accumulation in the disease's molecular neuropathology. In a double mutant transgenic rat model (AbetaPP and PS1 mutations, UKUR25), stably expressing intracellular human Abeta fragments in an environment devoid of both amyloid plaques and neurofibrillary tangles, we investigated the impact of iAbeta burden on both the incidence and relative cross sectional areas of the Golgi apparatus, lysosomes and lipofuscin bodies. Pyramidal cells within the hippocampus and neocortex of both transgenic and non-transgenic age matched controls were compared. This comparison revealed a significant increase in both the proportional area occupied by Golgi apparatus elements as well as in the mean individual cross sectional area of Golgi compartments in the hippocampus of transgenic rats as compared to controls. Elevated lysosome and lipofuscin elements in the hippocampi of transgenic rats were observed, as was an increase in the mean individual, cross sectional area of lipofuscin bodies in the cortex of transgenic rats as compared to controls. These findings support the hypothesis that intracellular Abeta accumulation not only has an impact on subcellular compartments but also potentially contributes to the neuronal cell pathology observed in AD." @default.
- W1448457390 created "2016-06-24" @default.
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- W1448457390 date "2004-08-24" @default.
- W1448457390 modified "2023-09-27" @default.
- W1448457390 title "Early changes in neurons of the hippocampus and neocortex in transgenic rats expressing intracellular human a-β" @default.
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- W1448457390 doi "https://doi.org/10.3233/jad-2004-6410" @default.
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