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Correlation of Alzheimer Disease Neuropathologic Changes With Cognitive Status: A Review of the Literature
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Immunology, Genetics and Pathology, Molecular and Morphological Pathology.
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2012 (English)In: Journal of Neuropathology and Experimental Neurology, ISSN 0022-3069, E-ISSN 1554-6578, Vol. 71, no 5, 362-381 p.Article, review/survey (Refereed) Published
Abstract [en]

Clinicopathologic correlation studies are critically important for the field of Alzheimer disease (AD) research. Studies on human subjects with autopsy confirmation entail numerous potential biases that affect both their general applicability and the validity of the correlations. Many sources of data variability can weaken the apparent correlation between cognitive status and AD neuropathologic changes. Indeed, most persons in advanced old age have significant non-AD brain lesions that may alter cognition independently of AD. Worldwide research efforts have evaluated thousands of human subjects to assess the causes of cognitive impairment in the elderly, and these studies have been interpreted in different ways. We review the literature focusing on the correlation of AD neuropathologic changes (i.e. beta-amyloid plaques and neurofibrillary tangles) with cognitive impairment. We discuss the various patterns of brain changes that have been observed in elderly individuals to provide a perspective for understanding AD clinicopathologic correlation and conclude that evidence from many independent research centers strongly supports the existence of a specific disease, as defined by the presence of AA plaques and neurofibrillary tangles. Although AA plaques may play a key role in AD pathogenesis, the severity of cognitive impairment correlates best with the burden of neocortical neurofibrillary tangles.

Place, publisher, year, edition, pages
2012. Vol. 71, no 5, 362-381 p.
Keyword [en]
Aging, Alzheimer disease, Amyloid, Dementia, Epidemiology, Neuropathology, MAPT, Neurofibrillary tangles
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Medical and Health Sciences
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URN: urn:nbn:se:uu:diva-174651DOI: 10.1097/NEN.0b013e31825018f7ISI: 000303056900001OAI: oai:DiVA.org:uu-174651DiVA: diva2:528463
Available from: 2012-05-25 Created: 2012-05-24 Last updated: 2017-12-07Bibliographically approved

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Alafuzoff, Irina

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