Cited by 34Alzheimer's disease research and treatmentsAdvanced MRI Techniques and ApplicationsDementia and Cognitive Impairment Research

Contrast-enhanced MR microscopy of amyloid plaques in five mouse models of amyloidosis and in human Alzheimer’s disease brains.

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Dudeffant, Clémence, Vandesquille, Matthias, Herbert, Kelly, Garin, Clément M., Alves, Sandro, Blanchard, Véronique, Comoy, Emmanuel E., Petit, Fanny +1 more·2017·Scientific Reports

Abstract

Abstract Gadolinium (Gd)-stained MRI is based on Gd contrast agent (CA) administration into the brain parenchyma. The strong signal increase induced by Gd CA can be converted into resolution enhancement to record microscopic MR images. Moreover, inhomogeneous distribution of the Gd CA in the brain improves the contrast between different tissues and provides new contrasts in MR images. Gd-stained MRI detects amyloid plaques, one of the microscopic lesions of Alzheimer’s disease (AD), in APPSL/PS1M146Lmice or in primates. Numerous transgenic mice with various plaque typologies have been developed to mimic cerebral amyloidosis and comparison of plaque detection between animal models and humans with new imaging methods is a recurrent concern. Here, we investigated detection of amyloid plaques by Gd-stained MRI in five mouse models of amyloidosis (APPSL/PS1M146L, APP/PS1dE9, APP23, APPSwDI, and 3xTg) presenting with compact, diffuse and intracellular plaques as well as inpost mortemhuman-AD brains. The brains were then evaluated by histology to investigate the impact of size, compactness, and iron load of amyloid plaques on their detection by MRI. We show that Gd-stained MRI allows detection of compact amyloid plaques as small as 25 µm, independently of their iron load, in mice as well as in human-AD brains.

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Authors
Dudeffant, C., Vandesquille, M., Herbert, K., Garin, C. M., Alves, S., Blanchard, V., Comoy, E. E., Petit, F., & Dhenain, M.
Affiliations
  • Université Paris-Sud (FR)
  • Sanofi (France) (FR)
  • Commissariat à l'Énergie Atomique et aux Énergies Alternatives (FR)
Venue
Scientific Reports
Published
2017-07-10
Volume
7
Issue
1
Pages
4955-4955
ISSN
2045-2322 (ISSN-L)
OpenAlex
W2727977265
Cited by
34
References
55
Citations by year
2026: 1 · 2024: 2 · 2023: 3 · 2022: 6 · 2021: 6 · 2020: 8 · 2019: 3 · 2018: 5
FWCI
3.24
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • HAL (submittedVersion, other-oa)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Fondation pour l'Aide à la Recherche sur la Sclérose en Plaques
  • Bpifrance
  • China Scholarship Council
  • Association France Parkinson
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced MRI Techniques and Applications
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
Keywords
amyloid plaques, Alzheimer's disease, gadolinium-enhanced MRI, APP23 mice, 3xTg-AD mice, plaque detection, transgenic mouse model
MeSH terms
Alzheimer Disease, Amyloidosis, Animals, Autopsy, Contrast Media, Disease Models, Animal, Gadolinium, Humans, Iron, Magnetic Resonance Imaging, Mice, Transgenic, Mice, Plaque, Amyloid

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