Cited by 289Dementia and Cognitive Impairment ResearchAlzheimer's disease research and treatmentsFunctional Brain Connectivity Studies

Neuroimaging biomarkers for Alzheimer’s disease.

Open access
Márquez, Freddie, Yassa, Michael A.·2019·Molecular Neurodegeneration

Abstract

Currently, over five million Americans suffer with Alzheimer's disease (AD). In the absence of a cure, this number could increase to 13.8 million by 2050. A critical goal of biomedical research is to establish indicators of AD during the preclinical stage (i.e. biomarkers) allowing for early diagnosis and intervention. Numerous advances have been made in developing biomarkers for AD using neuroimaging approaches. These approaches offer tremendous versatility in terms of targeting distinct age-related and pathophysiological mechanisms such as structural decline (e.g. volumetry, cortical thinning), functional decline (e.g. fMRI activity, network correlations), connectivity decline (e.g. diffusion anisotropy), and pathological aggregates (e.g. amyloid and tau PET). In this review, we survey the state of the literature on neuroimaging approaches to developing novel biomarkers for the amnestic form of AD, with an emphasis on combining approaches into multimodal biomarkers. We also discuss emerging methods including imaging epigenetics, neuroinflammation, and synaptic integrity using PET tracers. Finally, we review the complementary information that neuroimaging biomarkers provide, which highlights the potential utility of composite biomarkers as suitable outcome measures for proof-of-concept clinical trials with experimental therapeutics.

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  • Patients with preclinical AD have widespread white matter abnormalities at a stage similar to those reported in AD.

    “patients with preclinical AD have widespread white matter abnormalities at a stage similar to those reported in AD (Marquez and Yassa, 2019; Stone et al., 2021).”

    From Age-dependent microstructure alterations in 5xFAD mice by high-resolution diffusion tensor imaging (2022) · cites this paper as Marquez and Yassa, 2019

    The “Reduced white matter integrity – Diffusion MRI” section reports widespread declines in white matter integrity in MCI and AD, and the Summary and Conclusions repeats that finding. Neither passage establishes widespread white matter abnormalities in patients with preclinical AD or says their abnormalities are similar to those in AD. (LLM, conf=0.88)

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Research works printed but not linked: 4

  1. [14]Jack CR Jr Knopman DS Jagust WJ Petersen RC Weiner MW Aisen PS Tracking pathophysiological processes in Alzheimer’s disease: an updated hypothetical model of dynamic biomarkers Lancet Neurol. 2013 12 207 216 10.1016/S1474-4422(12)70291-0 23332364 PMC3622225 · DOI · Paper page
  2. [106]Yassa MA Muftuler LT Stark CEL Ultrahigh-resolution microstructural diffusion tensor imaging reveals perforant path degradation in aged humans in vivo Proc Natl Acad Sci U S A. 2010 107 12687 12691 10.1073/pnas.1002113107 20616040 PMC2906542 · DOI
  3. [108]Augustinack JC Helmer K Huber KE Kakunoori S Zöllei L Fischl B Direct visualization of the perforant pathway in the human brain with ex vivo diffusion tensor imaging Front Hum Neurosci. 2010 4 42 20577631 PMC2889718
  4. [148]de Leon MJ Ferris SH George AE Christman DR Fowler JS Gentes C Positron emission tomographic studies of aging and Alzheimer disease AJNR Am J Neuroradiol. 1983 4 568 571 6410799 PMC8334899

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Authors
Márquez, F., & Yassa, M. A.
Affiliations
University of California, Irvine (US)
Corresponding author
  • Márquez, Freddie
  • Yassa, Michael A.
Venue
Molecular Neurodegeneration
Published
2019-06-07
Volume
14
Issue
1
Pages
21-21
ISSN
1750-1326 (ISSN-L)
OpenAlex
W2955418937
Cited by
289
References
196
Citations by year
2026: 31 · 2025: 51 · 2024: 53 · 2023: 36 · 2022: 49 · 2021: 46 · 2020: 18 · 2019: 3 · 2018: 1
FWCI
4.88
Type
journal article
Language
en
Open access
Locations
  • Molecular Neurodegeneration (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • eScholarship (California Digital Library) (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Division of Molecular and Cellular Biosciences (GRFP DGE-1321846, B2D 1612490)
  • National Institute on Aging (P50AG05146, R21AG049220, R01AG053555)
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 › Cognitive Neuroscience › Functional Brain Connectivity Studies
Keywords
Alzheimer's disease, neuroimaging biomarkers, preclinical Alzheimer's disease, early diagnosis, multimodal biomarkers, amyloid PET, tau PET, cortical thinning, brain volumetry, functional connectivity, diffusion anisotropy, neuroinflammation, synaptic integrity, composite biomarker, clinical trial outcome measures
MeSH terms
Alzheimer Disease, Brain, Humans, Biomarkers, Early Diagnosis, Amyloidogenic Proteins, Neuroimaging

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