lnu.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Inflammatory reaction in the retina after focal non-convulsive status epilepticus in mice investigated with high resolution magnetic resonance and diffusion tensor imaging
Division of Clinical Neurophysiology, Sweden;Lund Universtity, Sweden.
Division of Clinical Neurophysiology, Sweden;Lund Universtity, Sweden.
University of Eastern Finland, Finland.
Division of Clinical Neurophysiology, Sweden;Lund Universtity, Sweden.
Show others and affiliations
2021 (English)In: Epilepsy Research, ISSN 0920-1211, E-ISSN 1872-6844, Vol. 176, article id 106730Article in journal (Refereed) Published
Abstract [en]

Pathophysiological consequences of focal non-convulsive status epilepticus (fNCSE) have been difficult to demonstrate in humans. In rats fNCSE pathology has been identified in the eyes. Here we evaluated the use of high-resolution 7 T structural T1-weighted magnetic resonance imaging (MRI) and 9.4 T diffusion tensor imaging (DTI) for detecting hippocampal fNCSE-induced retinal pathology ex vivo in mice. Seven weeks post-fNCSE, increased number of Iba1+ microglia were evident in the retina ipsilateral to the hemisphere with fNCSE, and morphologically more activated microglia were found in both ipsi- and contralateral retina compared to non-stimulated control mice. T1-weighted intensity measurements of the contralateral retina showed a minor increase within the outer nuclear and plexiform layers of the lateral retina. T1-weighted measurements were not performed in the ipsilateral retina due to technical difficulties. DTI fractional anisotropy(FA) values were discretely altered in the lateral part of the ipsilateral retina and unaltered in the contralateral retina. No changes were observed in the distal part of the optic nerve. The sensitivity of both imaging techniques for identifying larger retinal alteration was confirmed ex vivo in retinitis pigmentosa mice where a substantial neurodegeneration of the outer retinal layers is evident. With MR imaging a 50 % decrease in DTI FA values and significantly thinner retina in T1-weighted images were detected. We conclude that retinal pathology after fNCSE in mice is subtle and present bilaterally. High-resolution T1-weighted MRI and DTI independently did not detect the entire pathological retinal changes after fNCSE, but the combination of the two techniques indicated minor patchy structural changes.

Place, publisher, year, edition, pages
Elsevier, 2021. Vol. 176, article id 106730
National Category
Neurology Ophthalmology
Research subject
Natural Science, Optometry; Chemistry, Medical Chemistry; Natural Science, Biomedical Sciences
Identifiers
URN: urn:nbn:se:lnu:diva-120681DOI: 10.1016/j.eplepsyres.2021.106730ISI: 000701673400017Scopus ID: 2-s2.0-85111808466OAI: oai:DiVA.org:lnu-120681DiVA, id: diva2:1756466
Available from: 2023-05-12 Created: 2023-05-12 Last updated: 2023-05-12Bibliographically approved

Open Access in DiVA

fulltext(7664 kB)59 downloads
File information
File name FULLTEXT01.pdfFile size 7664 kBChecksum SHA-512
4f3330b1c0b83450b273ae5426bd1e8d3bf14d8345a06266d54f9dec7e93c5f4142e5e7a120360daa91ab17c839960970ddced6c63de1be3b5e741f70637c192
Type fulltextMimetype application/pdf

Other links

Publisher's full textScopus

Authority records

Englund Johansson, Ulrica

Search in DiVA

By author/editor
Kettunen, MikkoEnglund Johansson, UlricaSierra, Alejandra
In the same journal
Epilepsy Research
NeurologyOphthalmology

Search outside of DiVA

GoogleGoogle Scholar
Total: 59 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 206 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf