Please use this identifier to cite or link to this item: http://ahro.austin.org.au/austinjspui/handle/1/11706
Title: Changes in plasma amyloid beta in a longitudinal study of aging and Alzheimer's disease.
Authors: Rembach, Alan;Faux, Noel G;Watt, Andrew D;Pertile, Kelly K;Rumble, Rebecca L;Trounson, Brett O;Fowler, Christopher J;Roberts, Blaine R;Perez, Keyla A;Li, Qiao-Xin;Laws, Simon M;Taddei, Kevin;Rainey-Smith, Stephanie R;Robertson, Joanne S;Vandijck, Manu;Vanderstichele, Hugo;Barnham, Kevin J;Ellis, Kathryn A;Szoeke, Cassandra;Macaulay, S Lance;Rowe, Christopher C;Villemagne, Victor L;Ames, David;Martins, Ralph N;Bush, Ashley I;Masters, Colin L
Institutional Author: AIBL research group
Affiliation: The Mental Health Research Institute, The University of Melbourne, Victoria, Australia. Electronic address: a.rembach@unimelb.edu.au.
The Mental Health Research Institute, The University of Melbourne, Victoria, Australia.
Department of Diagnostic Development, Innogenetics NV, Ghent, Belgium.
Department of Diagnostic Development, Innogenetics NV, Ghent, Belgium; Biomarkable, Gent, Belgium.
The Mental Health Research Institute, The University of Melbourne, Victoria, Australia; Department of Psychiatry, St George's Hospital, University of Melbourne, Victoria, Australia; National Ageing Research Institute, Parkville, Victoria, Australia.
Department of Psychiatry, St George's Hospital, University of Melbourne, Victoria, Australia; National Ageing Research Institute, Parkville, Victoria, Australia.
CSIRO Molecular and Health Technologies, Parkville, Victoria, Australia.
Department of Nuclear Medicine and Centre for PET, Austin Health, Heidelberg, Victoria, Australia.
The Mental Health Research Institute, The University of Melbourne, Victoria, Australia; Department of Nuclear Medicine and Centre for PET, Austin Health, Heidelberg, Victoria, Australia.
National Ageing Research Institute, Parkville, Victoria, Australia.
Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital), Perth, Western Australia, Australia; Centre of Excellence for Alzheimer's Disease Research & Care, School of Medical Sciences, Edith Cowan University, Joondalup. Western Australia, Australia.
Issue Date: 13-Mar-2013
Citation: Alzheimer's & Dementia : the Journal of the Alzheimer's Association 2013; 10(1): 53-61
Abstract: A practical biomarker is required to facilitate the preclinical diagnosis of Alzheimer's disease (AD).Plasma amyloid beta (Aβ)1-40, Aβ1-42, Aβn-40, and Aβn-42 peptides were measured at baseline and after 18 months in 771 participants from the Australian Imaging Biomarkers and Lifestyle (AIBL) study of aging. Aβ peptide levels were compared with clinical pathology, neuroimaging and neuropsychological measurements.Although inflammatory and renal function covariates influenced plasma Aβ levels significantly, a decrease in Aβ1-42/Aβ1-40 was observed in patients with AD, and was also inversely correlated with neocortical amyloid burden. During the 18 months, plasma Aβ1-42 decreased in subjects with mild cognitive impairment (MCI) and in those transitioning from healthy to MCI.Our findings are consistent with a number of published plasma Aβ studies and, although the prognostic value of individual measures in any given subject is limited, the diagnostic contribution of plasma Aβ may demonstrate utility when combined with a panel of peripheral biomarkers.
Internal ID Number: 23491263
URI: http://ahro.austin.org.au/austinjspui/handle/1/11706
DOI: 10.1016/j.jalz.2012.12.006
URL: http://www.ncbi.nlm.nih.gov/pubmed/23491263
Type: Journal Article
Subjects: Alzheimer's disease
Amyloid-β
Biomarkers
Diagnosis
Pittsburgh compound B
Positron emission tomography
Aged
Aged, 80 and over
Aging.blood
Alzheimer Disease.blood.genetics.radionuclide imaging
Amyloid beta-Peptides.blood
Apolipoprotein E4.genetics
Chi-Square Distribution
Cohort Studies
Disease Progression
Female
Humans
Male
Middle Aged
Mild Cognitive Impairment.blood.radionuclide imaging
Neuropsychological Tests
Peptide Fragments.blood
Positron-Emission Tomography
Appears in Collections:Journal articles

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