Authors: Keage, Hannah A.D. | Ince, Paul G. | Matthews, Fiona E. | Wharton, Stephen B. | McKeith, Ian G. | Brayne, Carol | on behalf of MRC CFAS and CC75C
Article Type:
Research Article
Abstract:
Epidemiological studies investigating the pathological bases of late onset dementia focus on classical markers such as plaques and tangles. The significance of pathologies characteristically associated with rare dementia syndromes such as Pick bodies and severe neuronal loss are considered to be well defined. The significance of other pathologies, often accepted as a feature of neurodegenerative syndromes, such as Hirano bodies and gliosis is not clear. This study investigated the significance of these rarer and ‘disregarded’ pathologies to dementia in the population. A total of 627 individuals aged 71–103 from the Epidemiological CLInicoPathologial Studies in Europe (EClipSE) project with clinical dementia
…status at death determined were assessed. Pathologies assessed included Pick bodies, severe neuronal loss, gliosis, and granulovacuolar degeneration (GVD) in the cortex and/or hippocampus, along with brainstem plaques, tangles, neuronal loss, gliosis, pigmentary incontinence, and Lewy bodies. All pathologies were associated with dementia when controlling for plaques and tangles except Hirano bodies, GVD, and brainstem plaques. These included hippocampal and entorhinal gliosis; cortical, hippocampal, and entorhinal neuronal loss; along with brainstem neuronal loss, gliosis, pigmentary incontinence, Lewy bodies, and tangles. Pick bodies were present in five individuals, all with clinical dementia. These epidemiological data indicate that dementia in old age is associated with a broad range of pathological and anatomical substrates pointing to potential areas for future research, particularly the brainstem.
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Keywords: Age, aging, brain, dementia, pathology
DOI: 10.3233/JAD-2011-111268
Citation: Journal of Alzheimer's Disease,
vol. 28, no. 2, pp. 485-493, 2012
Price: EUR 27.50
