Cited by 182Dementia and Cognitive Impairment ResearchAlzheimer's disease research and treatmentsCerebrospinal fluid and hydrocephalus

CSF biomarkers cutoffs: The importance of coincident neuropathological diseases

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Toledo, Jon B., Brettschneider, Johannes, Grossman, Murray, Arnold, Steven E., Hu, William T., Xie, Sharon X., Lee, Virginia M.-Y., Shaw, Leslie M. +1 more·2012·Acta Neuropathologica

Abstract

The effects of applying clinical versus neuropathological diagnosis and the inclusion of cases with coincident neuropathological diagnoses have not been assessed specifically when studying cerebrospinal fluid (CSF) biomarker classification cutoffs for patients with neurodegenerative diseases that cause dementia. Thus, 142 neuropathologically diagnosed neurodegenerative dementia patients [71 Alzheimer's disease (AD), 29 frontotemporal lobar degeneration (FTLD), 3 amyotrophic lateral sclerosis, 7 dementia with Lewy bodies, 32 of which cases also had coincident diagnoses] were studied. 96 % had enzyme-linked immunosorbant assay (ELISA) CSF data and 77 % had Luminex CSF data, with 43 and 46 controls for comparison, respectively. Aβ(42), total, and phosphorylated tau(181) were measured. Clinical and neuropathological diagnoses showed an 81.4 % overall agreement. Both assays showed high sensitivity and specificity to classify AD subjects against FTLD subjects and controls, and moderate sensitivity and specificity for classifying FTLD subjects against controls. However, among the cases with neuropathological diagnoses of AD plus another pathology (26.8 % of the sample), 69.4 % (ELISA) and 96.4 % (Luminex) were classified as AD according to their biomarker profiles. Use of clinical diagnosis instead of neuropathological diagnosis led to a 14-17 % underestimation of the biomarker accuracy. These results show that while CSF Aβ and tau assays are useful for diagnosis of AD and neurodegenerative diseases even at MCI stages, CSF diagnostic analyte panels that establish a positive diagnosis of Lewy body disease and FTLD are also needed, and must be established based on neuropathological rather than clinical diagnoses.

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Authors
Toledo, J. B., Brettschneider, J., Grossman, M., Arnold, S. E., Hu, W. T., Xie, S. X., Lee, V. M.-Y., Shaw, L. M., & Trojanowski, J. Q.
Affiliations
  • University of Pennsylvania (US)
  • Emory University (US)
Corresponding author
Trojanowski, John Q.
Venue
Acta Neuropathologica
Published
2012-04-22
Volume
124
Issue
1
Pages
23-35
ISSN
  • 0001-6322 (ISSN-L)
  • 1432-0533
OpenAlex
W2022371215
Cited by
182
References
71
Citations by year
2026: 3 · 2025: 7 · 2024: 8 · 2023: 3 · 2022: 14 · 2021: 7 · 2020: 9 · 2019: 15 · 2018: 19 · 2017: 17 · 2016: 11 · 2015: 27 · 2014: 15 · 2013: 22 · 2012: 5
FWCI
15.76
Type
journal article
Language
en
Open access
Locations
  • Acta Neuropathologica (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • University of Pennsylvania
  • National Institutes of Health
  • National Institute on Aging (AG15116, AG033101, P30AG010124, R01AG015116, P01AG017586, AG17586, AG-10124, K08AG033101)
  • National Institute of Neurological Disorders and Stroke (P01NS044233, NS053488, NS-44266, P50NS053488, R01NS044266)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Cerebrospinal fluid and hydrocephalus
Keywords
cerebrospinal fluid biomarkers, Alzheimer's disease, frontotemporal lobar degeneration, dementia with Lewy bodies, amyotrophic lateral sclerosis, amyloid-beta 42, phosphorylated tau 181, diagnostic accuracy, neurodegenerative dementia, mild cognitive impairment, biomarker cut-off values
MeSH terms
Aged, Aged, 80 and over, Alzheimer Disease, Amyotrophic Lateral Sclerosis, Analysis of Variance, Enzyme-Linked Immunosorbent Assay, Female, Humans, Male, Middle Aged, Peptide Fragments, Psychiatric Status Rating Scales, Sensitivity and Specificity, Biomarkers, Amyloid beta-Peptides, tau Proteins, Area Under Curve, Frontotemporal Lobar Degeneration, Frontotemporal Dementia

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