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Relationship between herpes simplex virus-1-specific antibody titers and cortical brain damage in Alzheimer's disease and amnestic mild cognitive impairment

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Mancuso_2014_Frontiers_AN_Relationship_HSV_1_specific_antibody_titers_and_cortical_brain_damage_AD_CC.pdf (1.390Mb)
Date
15/10/2014
Author
Mancuso, Roberta
Baglio, Francesca
Agostini, Simone
Cabinio, Monia
Laganà, Maria M
Hernis, Ambra
Margaritella, Nicolò
Guerini, Franca R
Zanzottera, Milena
Nemni, Raffaello
Clerici, Mario
Keywords
HSV-1
Alzheimer’s disease (AD)
Amnestic mild cognitive impairment (aMCI)
Magnetic resonance imaging (MRI)
Voxel based morphometry (VBM)
HSV-1 IgG
QR355 Virology
RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
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Abstract
Alzheimer's disease (AD) is a multifactorial disease with a still barely understood etiology. Herpes simplex virus 1 (HSV-1) has long been suspected to play a role in the pathogenesis of AD because of its neurotropism, high rate of infection in the general population, and life-long persistence in neuronal cells, particularly in the same brain regions that are usually altered in AD. The goal of this study was to evaluate HSV-1-specific humoral immune responses in patients with a diagnosis of either AD or amnestic mild cognitive impairment (aMCI), and to verify the possible relation between HSV-1-specific antibody (Ab) titers and cortical damage; results were compared to those obtained in a group of healthy controls (HC). HSV-1 serum IgG titers were measured in 225 subjects (83 AD, 68 aMCI, and 74 HC). HSV-specific Ab avidity and cortical gray matter volumes analyzed by magnetic resonance imaging (MRI) were evaluated as well in a subgroup of these individuals (44 AD, 23 aMCI, and 26 HC). Results showed that, whereas HSV-1 seroprevalence and IgG avidity were comparable in the three groups, increased Ab titers (p < 0.001) were detected in AD and aMCI compared to HC. Positive significant correlations were detected in AD patients alone between HSV-1 IgG titers and cortical volumes in orbitofrontal (region of interest, ROI1 RSp0.56; p = 0.0001) and bilateral temporal cortices (ROI2 RSp0.57; p < 0.0001; ROI3 RSp0.48; p = 0.001); no correlations could be detected between IgG avidity and MRI parameters. Results herein suggest that a strong HSV-1-specific humoral response could be protective toward AD-associated cortical damage.
Citation
Mancuso , R , Baglio , F , Agostini , S , Cabinio , M , Laganà , M M , Hernis , A , Margaritella , N , Guerini , F R , Zanzottera , M , Nemni , R & Clerici , M 2014 , ' Relationship between herpes simplex virus-1-specific antibody titers and cortical brain damage in Alzheimer's disease and amnestic mild cognitive impairment ' , Frontiers in Aging Neuroscience , vol. 6 , 285 . https://doi.org/10.3389/fnagi.2014.00285
Publication
Frontiers in Aging Neuroscience
Status
Peer reviewed
DOI
https://doi.org/10.3389/fnagi.2014.00285
ISSN
1663-4365
Type
Journal article
Rights
Copyright © 2014 Mancuso, Baglio, Agostini, Cabinio, Laganà, Hernis, Margaritella, Guerini, Zanzottera, Nemni and Clerici. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
Description
This work was supported by 2012–2014 Ricerca Corrente (Italian Ministry of Health).
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/25051

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