Cited by 82Alzheimer's disease research and treatmentsBarrier Structure and Function StudiesNeurological Disease Mechanisms and Treatments

Imaging of cerebrovascular pathology in animal models of Alzheimer's disease

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Klohs, Jan, Rudin, Markus, Shimshek, Derya R., Beckmann, Nicolau·2014·Frontiers in Aging Neuroscience

Abstract

In Alzheimer's disease (AD), vascular pathology may interact with neurodegeneration and thus aggravate cognitive decline. As the relationship between these two processes is poorly understood, research has been increasingly focused on understanding the link between cerebrovascular alterations and AD. This has at last been spurred by the engineering of transgenic animals, which display pathological features of AD and develop cerebral amyloid angiopathy to various degrees. Transgenic models are versatile for investigating the role of amyloid deposition and vascular dysfunction, and for evaluating novel therapeutic concepts. In addition, research has benefited from the development of novel imaging techniques, which are capable of characterizing vascular pathology in vivo. They provide vascular structural read-outs and have the ability to assess the functional consequences of vascular dysfunction as well as to visualize and monitor the molecular processes underlying these pathological alterations. This article focusses on recent in vivo small animal imaging studies addressing vascular aspects related to AD. With the technical advances of imaging modalities such as magnetic resonance, nuclear and microscopic imaging, molecular, functional and structural information related to vascular pathology can now be visualized in vivo in small rodents. Imaging vascular and parenchymal amyloid-β (Aβ) deposition as well as Aβ transport pathways have been shown to be useful to characterize their dynamics and to elucidate their role in the development of cerebral amyloid angiopathy and AD. Structural and functional imaging read-outs have been employed to describe the deleterious affects of Aβ on vessel morphology, hemodynamics and vascular integrity. More recent imaging studies have also addressed how inflammatory processes partake in the pathogenesis of the disease. Moreover, imaging can be pivotal in the search for novel therapies targeting the vasculature.

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Crossref · 10.3389/fnagi.2014.00032

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  • Fixation alters the magnitude of water diffusion in tissue, but measures of the directionality of diffusion are less affected.

    “Fixation does alter the magnitude of water diffusion in the tissue, but measures of the directionality of diffusion are less affected [44][45][46].”

    From Diffusion tensor imaging reveals whole-brain microstructural changes in the P301L mouse model of tauopathy. (2020) · cites this paper as [46]

    The section on chronic cerebral hypoperfusion describes arterial water as a diffusible tracer, and the imaging-techniques table mentions diffusion tensor imaging, but neither addresses tissue fixation. Searches for fixation, diffusivity, and anisotropy found no passage comparing fixation’s effects on diffusion magnitude and directionality. (LLM, conf=0.72)

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Research works printed but not linked: 1

  1. Jensen J. H. Chandra R. (2000). MR imaging of microvasculature. Magn. Reson. Med. 44, 224– 230 10.1002/1522-2594(200008)44:2<224::AID-MRM9>3.0.CO;2-M 10918321 · DOI

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Authors
Klohs, J., Rudin, M., Shimshek, D. R., & Beckmann, N.
Affiliations
  • University of Zurich (CH)
  • Novartis (Switzerland) (CH)
Corresponding author
Beckmann, Nicolau
Venue
Frontiers in Aging Neuroscience
Published
2014-03-13
Volume
6
Pages
32-32
ISSN
1663-4365 (ISSN-L)
OpenAlex
W2150972825
Cited by
82
References
281
Citations by year
2026: 1 · 2025: 4 · 2024: 3 · 2023: 5 · 2022: 4 · 2021: 10 · 2020: 16 · 2019: 10 · 2018: 6 · 2017: 8 · 2016: 7 · 2015: 7 · 2014: 1
FWCI
0.90
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Frontiers in Aging Neuroscience (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Zurich Open Repository and Archive (University of Zurich) (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Repository for Publications and Research Data (ETH Zurich) (submittedVersion, cc-by)
  • ETH Zürich Research Collection (cc-by)
  • Zurich Open Repository and Archive (University of Zurich)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Neurology › Barrier Structure and Function Studies
  • Life Sciences › Neuroscience › Neurology › Neurological Disease Mechanisms and Treatments
Keywords
Alzheimer's disease, cerebrovascular pathology, cerebral amyloid angiopathy, amyloid-beta deposition, amyloid-beta transport, vascular dysfunction, transgenic animal models, in vivo imaging, small animal imaging, hemodynamics, vascular inflammation, vascular integrity, neurovascular unit

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