Intracerebral gadolinium deposition following blood–brain barrier disturbance in two different mouse models

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • M. L. Kromrey - , University of Greifswald (Author)
  • S. Oswald - , University of Rostock (Author)
  • D. Becher - , University of Greifswald (Author)
  • J. Bartel - , University of Greifswald (Author)
  • J. Schulze - , University of Greifswald (Author)
  • H. Paland - , University of Greifswald (Author)
  • T. Ittermann - , University of Greifswald (Author)
  • S. Hadlich - , University of Greifswald (Author)
  • J. P. Kühn - , Institute and Polyclinic of Diagnostic and Interventional Radiology, Technische Universität Dresden, University of Greifswald (Author)
  • S. Mouchantat - , University of Greifswald (Author)

Abstract

To evaluate the influence of the blood–brain barrier on neuronal gadolinium deposition in a mouse model after multiple intravenous applications of the linear contrast agent gadodiamide. The prospective study held 54 mice divided into three groups: healthy mice (A), mice with iatrogenic induced disturbance of the blood–brain barrier by glioblastoma (B) or cerebral infarction (C). In each group 9 animals received 10 iv-injections of gadodiamide (1.2 mmol/kg) every 48 h followed by plain T1-weighted brain MRI. A final MRI was performed 5 days after the last contrast injection. Remaining mice underwent MRI in the same time intervals without contrast application (control group). Signal intensities of thalamus, pallidum, pons, dentate nucleus, and globus pallidus-to-thalamus and dentate nucleus-to-pons ratios, were determined. Gadodiamide complex and total gadolinium amount were quantified after the last MR examination via LC–MS/MS and ICP-MS. Dentate nucleus-to-pons and globus pallidus-to-thalamus SI ratios showed no significant increase over time within all mice groups receiving gadodiamide, as well as compared to the control groups at last MR examination. Comparing healthy mice with group B and C after repetitive contrast administration, a significant SI increase could only be detected for glioblastoma mice in globus pallidus-to-thalamus ratio (p = 0.033), infarction mice showed no significant SI alteration. Tissue analysis revealed significantly higher gadolinium levels in glioblastoma group compared to healthy (p = 0.013) and infarction mice (p = 0.029). Multiple application of the linear contrast agent gadodiamide leads to cerebral gadolinium deposition without imaging correlate in MRI.

Details

Original languageEnglish
Article number10164
JournalScientific reports
Volume13
Issue number1
Publication statusPublished - Dec 2023
Peer-reviewedYes

External IDs

PubMed 37349374

Keywords

ASJC Scopus subject areas

Keywords

  • Mice, Animals, Contrast Media/pharmacology, Blood-Brain Barrier/diagnostic imaging, Gadolinium/pharmacology, Glioblastoma, Chromatography, Liquid, Prospective Studies, Retrospective Studies, Tandem Mass Spectrometry, Gadolinium DTPA, Magnetic Resonance Imaging/methods, Globus Pallidus, Disease Models, Animal, Organometallic Compounds