Cited by 24Alzheimer's disease research and treatmentsAdvanced MRI Techniques and ApplicationsNeurological diseases and metabolism

SWI and phase imaging reveal intracranial calcifications in the P301L mouse model of human tauopathy

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Ni, Ruiqing, Zarb, Yvette, Kuhn, Gisela A., Müller, Ralph, Yundung, Yankey, Nitsch, Roger M., Kulic, Luka, Keller, Annika +1 more·2020·Magnetic Resonance Materials in Physics, Biology and Medicine

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Abstract

Objective: Brain calcifications are associated with several neurodegenerative diseases. Here, we describe the occurrence of intracranial calcifications as a new phenotype in transgenic P301L mice overexpressing four repeat tau, a model of human tauopathy. Materials and methods: Thirty-six P301L mice (Thy1.2) and ten age-matched non-transgenic littermates of different ages were assessed. Gradient echo data were acquired in vivo and ex vivo at 7 T and 9.4 T for susceptibility-weighted imaging (SWI) and phase imaging. In addition, ex vivo micro-computed tomography (μCT) was performed. Histochemistry and immunohistochemistry were used to investigate the nature of the imaging lesions. Results: SW images revealed regional hypointensities in the hippocampus, cortex, caudate nucleus, and thalamus of P301L mice, which in corresponding phase images indicated diamagnetic lesions. Concomitantly, µCT detected hyperdense lesions, though fewer lesions were observed compared to MRI. Diamagnetic susceptibility lesions in the hippocampus increased with age. The immunochemical staining of brain sections revealed osteocalcin-positive deposits. Furthermore, intra-neuronal and vessel-associated osteocalcin-containing nodules co-localized with phosphorylated-tau (AT8 and AT100) in the hippocampus, while vascular osteocalcin-containing nodules were detected in the thalamus in the absence of phosphorylated-tau deposition. Discussion: SWI and phase imaging sensitively detected intracranial calcifications in the P301L mouse model of human tauopathy.

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  • Behavioural analysis revealed cognitive deficits in learning and motor tasks.

    “Behavioural analysis revealed cognitive deficits in learning and motor tasks [30,31].”

    From Diffusion tensor imaging reveals whole-brain microstructural changes in the P301L mouse model of tauopathy. (2020) · cites this paper as [31]

    The Introduction and Discussion report impaired memory in P301L mice on hippocampus- and amygdala-dependent tasks, supporting the learning-related part of the claim. The paper reports this from earlier studies rather than presenting its own behavioural analysis, and our copy does not report deficits on motor tasks. Page numbers are unavailable in the indexed copy. (LLM, conf=0.86)

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Authors
Ni, R., Zarb, Y., Kuhn, G. A., Müller, R., Yundung, Y., Nitsch, R. M., Kulic, L., Keller, A., & Klohs, J.
Affiliations
  • University of Zurich (CH)
  • ETH Zurich (CH)
Corresponding author
Klohs, Jan
Venue
Magnetic Resonance Materials in Physics, Biology and Medicine
Published
2020-05-28
Volume
33
Issue
6
Pages
769-781
ISSN
  • 0968-5243 (ISSN-L)
  • 1352-8661
OpenAlex
W3029306449
Cited by
24
References
84
Citations by year
2026: 1 · 2025: 1 · 2024: 5 · 2023: 2 · 2022: 8 · 2021: 5 · 2020: 2
FWCI
2.56
Type
journal article
Language
en
Open access
Locations
  • Magnetic Resonance Materials in Physics Biology and Medicine (publishedVersion, cc-by)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Zurich Open Repository and Archive (University of Zurich) (acceptedVersion, cc-by)
  • Repository for Publications and Research Data (ETH Zurich) (submittedVersion, cc-by)
  • Zurich Open Repository and Archive (University of Zurich) (submittedVersion, cc-by)
  • ETH Zürich Research Collection (cc-by)
  • Zurich Open Repository and Archive (University of Zurich)
Funders
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (320030_179277, 31003A_159514)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced MRI Techniques and Applications
  • Life Sciences › Neuroscience › Neurology › Neurological diseases and metabolism
Keywords
intracranial calcification, tauopathy, susceptibility-weighted imaging, phase imaging, phosphorylated tau, hippocampus, thalamus, micro-computed tomography, neurodegeneration
MeSH terms
Animals, Disease Models, Animal, Humans, Magnetic Resonance Imaging, Mice, Transgenic, tau Proteins, Tauopathies, Mice, X-Ray Microtomography

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