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September 13, 2016; 87 (11) Article

Predicting Alzheimer disease from a blood-based biomarker profile

A 54-month follow-up

Samantha C. Burnham, Christopher C. Rowe, David Baker, Ashley I. Bush, James D. Doecke, Noel G. Faux, Simon M. Laws, Ralph N. Martins, Paul Maruff, S. Lance Macaulay, Stephanie Rainey-Smith, Greg Savage, David Ames, Colin L. Masters, William Wilson, Victor L. Villemagne
First published August 17, 2016, DOI: https://doi.org/10.1212/WNL.0000000000003094
Samantha C. Burnham
From eHealth (S.C.B.), CSIRO Health and Biosecurity, Floreat; Department of Nuclear Medicine and Centre for PET (C.C.R.), Austin Health, Heidelberg; Department of Medicine (C.C.R., V.L.V.), Austin Health, University of Melbourne, Heidelberg, Australia; Janssen Research and Development (D.B.), Titusville, NJ; Mental Health Research Institute (A.I.B., N.G.F.), Academic Unit for Psychiatry of Old Age, Department of Psychiatry (D.A.), and The Florey Institute (C.L.M., V.L.V.), University of Melbourne, Parkville; eHealth (J.D.D.), CSIRO Health and Biosecurity, Herston; Centre of Excellence for Alzheimer's Disease Research & Care (S.M.L., R.N.M., S.R.-S.), School of Medical Sciences, Edith Cowan University, Joondalup; School of Biomedical Sciences (S.M.L.), Faculty of Health Sciences, Curtin University, Bentley; Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital) (R.N.M., S.R.-S.), Perth; Cogstate (P.M.), Melbourne; CSIRO Food and Nutrition Flagship (S.L.M.), Melbourne; Department of Psychology (G.S.), Macquarie University, Sydney; and eHealth (W.W.), CSIRO Health and Biosecurity, North Ryde, Australia.
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Christopher C. Rowe
From eHealth (S.C.B.), CSIRO Health and Biosecurity, Floreat; Department of Nuclear Medicine and Centre for PET (C.C.R.), Austin Health, Heidelberg; Department of Medicine (C.C.R., V.L.V.), Austin Health, University of Melbourne, Heidelberg, Australia; Janssen Research and Development (D.B.), Titusville, NJ; Mental Health Research Institute (A.I.B., N.G.F.), Academic Unit for Psychiatry of Old Age, Department of Psychiatry (D.A.), and The Florey Institute (C.L.M., V.L.V.), University of Melbourne, Parkville; eHealth (J.D.D.), CSIRO Health and Biosecurity, Herston; Centre of Excellence for Alzheimer's Disease Research & Care (S.M.L., R.N.M., S.R.-S.), School of Medical Sciences, Edith Cowan University, Joondalup; School of Biomedical Sciences (S.M.L.), Faculty of Health Sciences, Curtin University, Bentley; Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital) (R.N.M., S.R.-S.), Perth; Cogstate (P.M.), Melbourne; CSIRO Food and Nutrition Flagship (S.L.M.), Melbourne; Department of Psychology (G.S.), Macquarie University, Sydney; and eHealth (W.W.), CSIRO Health and Biosecurity, North Ryde, Australia.
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David Baker
From eHealth (S.C.B.), CSIRO Health and Biosecurity, Floreat; Department of Nuclear Medicine and Centre for PET (C.C.R.), Austin Health, Heidelberg; Department of Medicine (C.C.R., V.L.V.), Austin Health, University of Melbourne, Heidelberg, Australia; Janssen Research and Development (D.B.), Titusville, NJ; Mental Health Research Institute (A.I.B., N.G.F.), Academic Unit for Psychiatry of Old Age, Department of Psychiatry (D.A.), and The Florey Institute (C.L.M., V.L.V.), University of Melbourne, Parkville; eHealth (J.D.D.), CSIRO Health and Biosecurity, Herston; Centre of Excellence for Alzheimer's Disease Research & Care (S.M.L., R.N.M., S.R.-S.), School of Medical Sciences, Edith Cowan University, Joondalup; School of Biomedical Sciences (S.M.L.), Faculty of Health Sciences, Curtin University, Bentley; Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital) (R.N.M., S.R.-S.), Perth; Cogstate (P.M.), Melbourne; CSIRO Food and Nutrition Flagship (S.L.M.), Melbourne; Department of Psychology (G.S.), Macquarie University, Sydney; and eHealth (W.W.), CSIRO Health and Biosecurity, North Ryde, Australia.
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Ashley I. Bush
From eHealth (S.C.B.), CSIRO Health and Biosecurity, Floreat; Department of Nuclear Medicine and Centre for PET (C.C.R.), Austin Health, Heidelberg; Department of Medicine (C.C.R., V.L.V.), Austin Health, University of Melbourne, Heidelberg, Australia; Janssen Research and Development (D.B.), Titusville, NJ; Mental Health Research Institute (A.I.B., N.G.F.), Academic Unit for Psychiatry of Old Age, Department of Psychiatry (D.A.), and The Florey Institute (C.L.M., V.L.V.), University of Melbourne, Parkville; eHealth (J.D.D.), CSIRO Health and Biosecurity, Herston; Centre of Excellence for Alzheimer's Disease Research & Care (S.M.L., R.N.M., S.R.-S.), School of Medical Sciences, Edith Cowan University, Joondalup; School of Biomedical Sciences (S.M.L.), Faculty of Health Sciences, Curtin University, Bentley; Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital) (R.N.M., S.R.-S.), Perth; Cogstate (P.M.), Melbourne; CSIRO Food and Nutrition Flagship (S.L.M.), Melbourne; Department of Psychology (G.S.), Macquarie University, Sydney; and eHealth (W.W.), CSIRO Health and Biosecurity, North Ryde, Australia.
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James D. Doecke
From eHealth (S.C.B.), CSIRO Health and Biosecurity, Floreat; Department of Nuclear Medicine and Centre for PET (C.C.R.), Austin Health, Heidelberg; Department of Medicine (C.C.R., V.L.V.), Austin Health, University of Melbourne, Heidelberg, Australia; Janssen Research and Development (D.B.), Titusville, NJ; Mental Health Research Institute (A.I.B., N.G.F.), Academic Unit for Psychiatry of Old Age, Department of Psychiatry (D.A.), and The Florey Institute (C.L.M., V.L.V.), University of Melbourne, Parkville; eHealth (J.D.D.), CSIRO Health and Biosecurity, Herston; Centre of Excellence for Alzheimer's Disease Research & Care (S.M.L., R.N.M., S.R.-S.), School of Medical Sciences, Edith Cowan University, Joondalup; School of Biomedical Sciences (S.M.L.), Faculty of Health Sciences, Curtin University, Bentley; Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital) (R.N.M., S.R.-S.), Perth; Cogstate (P.M.), Melbourne; CSIRO Food and Nutrition Flagship (S.L.M.), Melbourne; Department of Psychology (G.S.), Macquarie University, Sydney; and eHealth (W.W.), CSIRO Health and Biosecurity, North Ryde, Australia.
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Noel G. Faux
From eHealth (S.C.B.), CSIRO Health and Biosecurity, Floreat; Department of Nuclear Medicine and Centre for PET (C.C.R.), Austin Health, Heidelberg; Department of Medicine (C.C.R., V.L.V.), Austin Health, University of Melbourne, Heidelberg, Australia; Janssen Research and Development (D.B.), Titusville, NJ; Mental Health Research Institute (A.I.B., N.G.F.), Academic Unit for Psychiatry of Old Age, Department of Psychiatry (D.A.), and The Florey Institute (C.L.M., V.L.V.), University of Melbourne, Parkville; eHealth (J.D.D.), CSIRO Health and Biosecurity, Herston; Centre of Excellence for Alzheimer's Disease Research & Care (S.M.L., R.N.M., S.R.-S.), School of Medical Sciences, Edith Cowan University, Joondalup; School of Biomedical Sciences (S.M.L.), Faculty of Health Sciences, Curtin University, Bentley; Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital) (R.N.M., S.R.-S.), Perth; Cogstate (P.M.), Melbourne; CSIRO Food and Nutrition Flagship (S.L.M.), Melbourne; Department of Psychology (G.S.), Macquarie University, Sydney; and eHealth (W.W.), CSIRO Health and Biosecurity, North Ryde, Australia.
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Simon M. Laws
From eHealth (S.C.B.), CSIRO Health and Biosecurity, Floreat; Department of Nuclear Medicine and Centre for PET (C.C.R.), Austin Health, Heidelberg; Department of Medicine (C.C.R., V.L.V.), Austin Health, University of Melbourne, Heidelberg, Australia; Janssen Research and Development (D.B.), Titusville, NJ; Mental Health Research Institute (A.I.B., N.G.F.), Academic Unit for Psychiatry of Old Age, Department of Psychiatry (D.A.), and The Florey Institute (C.L.M., V.L.V.), University of Melbourne, Parkville; eHealth (J.D.D.), CSIRO Health and Biosecurity, Herston; Centre of Excellence for Alzheimer's Disease Research & Care (S.M.L., R.N.M., S.R.-S.), School of Medical Sciences, Edith Cowan University, Joondalup; School of Biomedical Sciences (S.M.L.), Faculty of Health Sciences, Curtin University, Bentley; Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital) (R.N.M., S.R.-S.), Perth; Cogstate (P.M.), Melbourne; CSIRO Food and Nutrition Flagship (S.L.M.), Melbourne; Department of Psychology (G.S.), Macquarie University, Sydney; and eHealth (W.W.), CSIRO Health and Biosecurity, North Ryde, Australia.
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Ralph N. Martins
From eHealth (S.C.B.), CSIRO Health and Biosecurity, Floreat; Department of Nuclear Medicine and Centre for PET (C.C.R.), Austin Health, Heidelberg; Department of Medicine (C.C.R., V.L.V.), Austin Health, University of Melbourne, Heidelberg, Australia; Janssen Research and Development (D.B.), Titusville, NJ; Mental Health Research Institute (A.I.B., N.G.F.), Academic Unit for Psychiatry of Old Age, Department of Psychiatry (D.A.), and The Florey Institute (C.L.M., V.L.V.), University of Melbourne, Parkville; eHealth (J.D.D.), CSIRO Health and Biosecurity, Herston; Centre of Excellence for Alzheimer's Disease Research & Care (S.M.L., R.N.M., S.R.-S.), School of Medical Sciences, Edith Cowan University, Joondalup; School of Biomedical Sciences (S.M.L.), Faculty of Health Sciences, Curtin University, Bentley; Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital) (R.N.M., S.R.-S.), Perth; Cogstate (P.M.), Melbourne; CSIRO Food and Nutrition Flagship (S.L.M.), Melbourne; Department of Psychology (G.S.), Macquarie University, Sydney; and eHealth (W.W.), CSIRO Health and Biosecurity, North Ryde, Australia.
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Paul Maruff
From eHealth (S.C.B.), CSIRO Health and Biosecurity, Floreat; Department of Nuclear Medicine and Centre for PET (C.C.R.), Austin Health, Heidelberg; Department of Medicine (C.C.R., V.L.V.), Austin Health, University of Melbourne, Heidelberg, Australia; Janssen Research and Development (D.B.), Titusville, NJ; Mental Health Research Institute (A.I.B., N.G.F.), Academic Unit for Psychiatry of Old Age, Department of Psychiatry (D.A.), and The Florey Institute (C.L.M., V.L.V.), University of Melbourne, Parkville; eHealth (J.D.D.), CSIRO Health and Biosecurity, Herston; Centre of Excellence for Alzheimer's Disease Research & Care (S.M.L., R.N.M., S.R.-S.), School of Medical Sciences, Edith Cowan University, Joondalup; School of Biomedical Sciences (S.M.L.), Faculty of Health Sciences, Curtin University, Bentley; Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital) (R.N.M., S.R.-S.), Perth; Cogstate (P.M.), Melbourne; CSIRO Food and Nutrition Flagship (S.L.M.), Melbourne; Department of Psychology (G.S.), Macquarie University, Sydney; and eHealth (W.W.), CSIRO Health and Biosecurity, North Ryde, Australia.
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S. Lance Macaulay
From eHealth (S.C.B.), CSIRO Health and Biosecurity, Floreat; Department of Nuclear Medicine and Centre for PET (C.C.R.), Austin Health, Heidelberg; Department of Medicine (C.C.R., V.L.V.), Austin Health, University of Melbourne, Heidelberg, Australia; Janssen Research and Development (D.B.), Titusville, NJ; Mental Health Research Institute (A.I.B., N.G.F.), Academic Unit for Psychiatry of Old Age, Department of Psychiatry (D.A.), and The Florey Institute (C.L.M., V.L.V.), University of Melbourne, Parkville; eHealth (J.D.D.), CSIRO Health and Biosecurity, Herston; Centre of Excellence for Alzheimer's Disease Research & Care (S.M.L., R.N.M., S.R.-S.), School of Medical Sciences, Edith Cowan University, Joondalup; School of Biomedical Sciences (S.M.L.), Faculty of Health Sciences, Curtin University, Bentley; Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital) (R.N.M., S.R.-S.), Perth; Cogstate (P.M.), Melbourne; CSIRO Food and Nutrition Flagship (S.L.M.), Melbourne; Department of Psychology (G.S.), Macquarie University, Sydney; and eHealth (W.W.), CSIRO Health and Biosecurity, North Ryde, Australia.
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Stephanie Rainey-Smith
From eHealth (S.C.B.), CSIRO Health and Biosecurity, Floreat; Department of Nuclear Medicine and Centre for PET (C.C.R.), Austin Health, Heidelberg; Department of Medicine (C.C.R., V.L.V.), Austin Health, University of Melbourne, Heidelberg, Australia; Janssen Research and Development (D.B.), Titusville, NJ; Mental Health Research Institute (A.I.B., N.G.F.), Academic Unit for Psychiatry of Old Age, Department of Psychiatry (D.A.), and The Florey Institute (C.L.M., V.L.V.), University of Melbourne, Parkville; eHealth (J.D.D.), CSIRO Health and Biosecurity, Herston; Centre of Excellence for Alzheimer's Disease Research & Care (S.M.L., R.N.M., S.R.-S.), School of Medical Sciences, Edith Cowan University, Joondalup; School of Biomedical Sciences (S.M.L.), Faculty of Health Sciences, Curtin University, Bentley; Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital) (R.N.M., S.R.-S.), Perth; Cogstate (P.M.), Melbourne; CSIRO Food and Nutrition Flagship (S.L.M.), Melbourne; Department of Psychology (G.S.), Macquarie University, Sydney; and eHealth (W.W.), CSIRO Health and Biosecurity, North Ryde, Australia.
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Greg Savage
From eHealth (S.C.B.), CSIRO Health and Biosecurity, Floreat; Department of Nuclear Medicine and Centre for PET (C.C.R.), Austin Health, Heidelberg; Department of Medicine (C.C.R., V.L.V.), Austin Health, University of Melbourne, Heidelberg, Australia; Janssen Research and Development (D.B.), Titusville, NJ; Mental Health Research Institute (A.I.B., N.G.F.), Academic Unit for Psychiatry of Old Age, Department of Psychiatry (D.A.), and The Florey Institute (C.L.M., V.L.V.), University of Melbourne, Parkville; eHealth (J.D.D.), CSIRO Health and Biosecurity, Herston; Centre of Excellence for Alzheimer's Disease Research & Care (S.M.L., R.N.M., S.R.-S.), School of Medical Sciences, Edith Cowan University, Joondalup; School of Biomedical Sciences (S.M.L.), Faculty of Health Sciences, Curtin University, Bentley; Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital) (R.N.M., S.R.-S.), Perth; Cogstate (P.M.), Melbourne; CSIRO Food and Nutrition Flagship (S.L.M.), Melbourne; Department of Psychology (G.S.), Macquarie University, Sydney; and eHealth (W.W.), CSIRO Health and Biosecurity, North Ryde, Australia.
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David Ames
From eHealth (S.C.B.), CSIRO Health and Biosecurity, Floreat; Department of Nuclear Medicine and Centre for PET (C.C.R.), Austin Health, Heidelberg; Department of Medicine (C.C.R., V.L.V.), Austin Health, University of Melbourne, Heidelberg, Australia; Janssen Research and Development (D.B.), Titusville, NJ; Mental Health Research Institute (A.I.B., N.G.F.), Academic Unit for Psychiatry of Old Age, Department of Psychiatry (D.A.), and The Florey Institute (C.L.M., V.L.V.), University of Melbourne, Parkville; eHealth (J.D.D.), CSIRO Health and Biosecurity, Herston; Centre of Excellence for Alzheimer's Disease Research & Care (S.M.L., R.N.M., S.R.-S.), School of Medical Sciences, Edith Cowan University, Joondalup; School of Biomedical Sciences (S.M.L.), Faculty of Health Sciences, Curtin University, Bentley; Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital) (R.N.M., S.R.-S.), Perth; Cogstate (P.M.), Melbourne; CSIRO Food and Nutrition Flagship (S.L.M.), Melbourne; Department of Psychology (G.S.), Macquarie University, Sydney; and eHealth (W.W.), CSIRO Health and Biosecurity, North Ryde, Australia.
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Colin L. Masters
From eHealth (S.C.B.), CSIRO Health and Biosecurity, Floreat; Department of Nuclear Medicine and Centre for PET (C.C.R.), Austin Health, Heidelberg; Department of Medicine (C.C.R., V.L.V.), Austin Health, University of Melbourne, Heidelberg, Australia; Janssen Research and Development (D.B.), Titusville, NJ; Mental Health Research Institute (A.I.B., N.G.F.), Academic Unit for Psychiatry of Old Age, Department of Psychiatry (D.A.), and The Florey Institute (C.L.M., V.L.V.), University of Melbourne, Parkville; eHealth (J.D.D.), CSIRO Health and Biosecurity, Herston; Centre of Excellence for Alzheimer's Disease Research & Care (S.M.L., R.N.M., S.R.-S.), School of Medical Sciences, Edith Cowan University, Joondalup; School of Biomedical Sciences (S.M.L.), Faculty of Health Sciences, Curtin University, Bentley; Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital) (R.N.M., S.R.-S.), Perth; Cogstate (P.M.), Melbourne; CSIRO Food and Nutrition Flagship (S.L.M.), Melbourne; Department of Psychology (G.S.), Macquarie University, Sydney; and eHealth (W.W.), CSIRO Health and Biosecurity, North Ryde, Australia.
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William Wilson
From eHealth (S.C.B.), CSIRO Health and Biosecurity, Floreat; Department of Nuclear Medicine and Centre for PET (C.C.R.), Austin Health, Heidelberg; Department of Medicine (C.C.R., V.L.V.), Austin Health, University of Melbourne, Heidelberg, Australia; Janssen Research and Development (D.B.), Titusville, NJ; Mental Health Research Institute (A.I.B., N.G.F.), Academic Unit for Psychiatry of Old Age, Department of Psychiatry (D.A.), and The Florey Institute (C.L.M., V.L.V.), University of Melbourne, Parkville; eHealth (J.D.D.), CSIRO Health and Biosecurity, Herston; Centre of Excellence for Alzheimer's Disease Research & Care (S.M.L., R.N.M., S.R.-S.), School of Medical Sciences, Edith Cowan University, Joondalup; School of Biomedical Sciences (S.M.L.), Faculty of Health Sciences, Curtin University, Bentley; Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital) (R.N.M., S.R.-S.), Perth; Cogstate (P.M.), Melbourne; CSIRO Food and Nutrition Flagship (S.L.M.), Melbourne; Department of Psychology (G.S.), Macquarie University, Sydney; and eHealth (W.W.), CSIRO Health and Biosecurity, North Ryde, Australia.
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Victor L. Villemagne
From eHealth (S.C.B.), CSIRO Health and Biosecurity, Floreat; Department of Nuclear Medicine and Centre for PET (C.C.R.), Austin Health, Heidelberg; Department of Medicine (C.C.R., V.L.V.), Austin Health, University of Melbourne, Heidelberg, Australia; Janssen Research and Development (D.B.), Titusville, NJ; Mental Health Research Institute (A.I.B., N.G.F.), Academic Unit for Psychiatry of Old Age, Department of Psychiatry (D.A.), and The Florey Institute (C.L.M., V.L.V.), University of Melbourne, Parkville; eHealth (J.D.D.), CSIRO Health and Biosecurity, Herston; Centre of Excellence for Alzheimer's Disease Research & Care (S.M.L., R.N.M., S.R.-S.), School of Medical Sciences, Edith Cowan University, Joondalup; School of Biomedical Sciences (S.M.L.), Faculty of Health Sciences, Curtin University, Bentley; Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital) (R.N.M., S.R.-S.), Perth; Cogstate (P.M.), Melbourne; CSIRO Food and Nutrition Flagship (S.L.M.), Melbourne; Department of Psychology (G.S.), Macquarie University, Sydney; and eHealth (W.W.), CSIRO Health and Biosecurity, North Ryde, Australia.
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Full PDF
Citation
Predicting Alzheimer disease from a blood-based biomarker profile
A 54-month follow-up
Samantha C. Burnham, Christopher C. Rowe, David Baker, Ashley I. Bush, James D. Doecke, Noel G. Faux, Simon M. Laws, Ralph N. Martins, Paul Maruff, S. Lance Macaulay, Stephanie Rainey-Smith, Greg Savage, David Ames, Colin L. Masters, William Wilson, Victor L. Villemagne
Neurology Sep 2016, 87 (11) 1093-1101; DOI: 10.1212/WNL.0000000000003094

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Abstract

Objective: We assessed a blood-based signature, which previously demonstrated high accuracy at stratifying individuals with high or low neocortical β-amyloid burden (NAB), to determine whether it could also identify individuals at risk of progression to Alzheimer disease (AD) within 54 months.

Methods: We generated the blood-based signature for 585 healthy controls (HCs) and 74 participants with mild cognitive impairment (MCI) from the Australian Imaging, Biomarkers and Lifestyle Study who underwent clinical reclassification (blinded to biomarker findings) at 54-month follow-up. The individuals were split into estimated high and low NAB groups based on a cutoff of 1.5 standardized uptake value ratio. We assessed the predictive accuracy of the high and low NAB groupings based on progression to mild cognitive impairment or AD according to clinical reclassification at 54-month follow-up.

Results: Twelve percent of HCs with estimated high NAB progressed in comparison to 5% of HCs with estimated low NAB (odds ratio = 2.4). Forty percent of the participants with MCI who had estimated high NAB progressed in comparison to 5% of the participants with MCI who had estimated low NAB (odds ratio = 12.3). These ratios are in line with those reported for Pittsburgh compound B–PET results. Individuals with estimated high NAB had faster rates of memory decline than those with estimated low NAB.

Conclusion: These findings suggest that a simple blood-based signature not only provides estimates of NAB but also predicts cognitive decline and disease progression, identifying individuals at risk of progressing toward AD at the prodromal and preclinical stages.

GLOSSARY

Aβ=
β-amyloid;
AD=
Alzheimer disease;
AIBL=
Australian Imaging, Biomarker and Lifestyle;
ANOVA=
analysis of variance;
AUC=
area under the curve;
BBE=
blood-based estimate;
BeCKeT=
Before the Centiloid Kernel Transformation;
CDR=
Clinical Dementia Rating;
CI=
confidence interval;
CoxPH=
Cox proportional hazards;
CXCL-13=
chemokine ligand 13;
FBP=
18F-florbetapir;
FLUTE=
18F-flutemetamol;
HC=
healthy control;
IgM-1=
immunoglobulin M-1;
IL-17=
interleukin 17;
MCI=
mild cognitive impairment;
NAB=
neocortical β-amyloid burden;
OR=
odds ratio;
PiB=
Pittsburgh compound B;
PPY=
pancreatic polypeptide;
ROC=
receiver operating characteristic;
SUV=
standardized uptake value;
SUVR=
standardized uptake value ratio;
VCAM-1=
vascular cell adhesion molecule 1

Footnotes

  • Go to Neurology.org for full disclosures. Funding information and disclosures deemed relevant by the authors, if any, are provided at the end of the article.

  • Supplemental data at Neurology.org

  • Received January 17, 2016.
  • Accepted in final form June 1, 2016.
  • © 2016 American Academy of Neurology
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