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Association Between Progranulin and β-Amyloid in Dementia With Lewy Bodies
Journal article   Open access   Peer reviewed

Association Between Progranulin and β-Amyloid in Dementia With Lewy Bodies

Gonzalo J. Revuelta, Andrea Rosso and Carol F. Lippa
American journal of Alzheimer's disease and other dementias, v 23(5), pp 488-493
Oct 2008
PMID: 18955727
url
https://doi.org/10.1177/1533317508321910View
Published, Version of Record (VoR)Open Access (License Unspecified) Open

Abstract

dementia with Lewy bodies progranulin frontotemporal dementia synucleinopathies β-amyloid
Recent studies demonstrated that progranulin plays an integral role in the pathogenesis of frontotemporal dementia. To begin to explore the role of progranulin in dementia with Lewy bodies, we investigate its association with pathologic proteins that characterize this disease. We assessed immunoreactivity for progranulin in medial temporal lobe structures of 12 cases of dementia with Lewy bodies. Similar data were collected for β-amyloid burden, and α-synuclein pathology. Blinded investigators used a 0-3—point scale to quantify progranulin burden. Double labeling for progranulin and β-amyloid was also performed. We were able to demonstrate progranulin immunoreactivity throughout the medial temporal lobe in all dementia with Lewy body cases. We identified a significant positive correlation (r = 0.606; P = .037) between β-amyloid burden and progranulin. There was no significant correlation between α-synuclein pathology or Braak stage and progranulin. Progranulin and β-amyloid co-localized in plaques in dementia with Lewy bodies, suggesting that there is likely a biological association between these 2 aggregated proteins.

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Web of Science research areas
Clinical Neurology
Geriatrics & Gerontology
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