Neurofilament light chain plasma levels are associated with area of brain damage in experimental cerebral malaria.

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Version: Final published version
License: CC BY 4.0
Serval ID
serval:BIB_F63C13E20954
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Neurofilament light chain plasma levels are associated with area of brain damage in experimental cerebral malaria.
Journal
Scientific reports
Author(s)
Wai C.H., Jin J., Cyrklaff M., Genoud C., Funaya C., Sattler J., Maceski A., Meier S., Heiland S., Lanzer M., Frischknecht F., Kuhle J., Bendszus M., Hoffmann A.
ISSN
2045-2322 (Electronic)
ISSN-L
2045-2322
Publication state
Published
Issued date
24/06/2022
Peer-reviewed
Oui
Volume
12
Number
1
Pages
10726
Language
english
Notes
Publication types: Journal Article
Publication Status: epublish
Abstract
Neurofilament light chain (NfL), released during central nervous injury, has evolved as a powerful serum marker of disease severity in many neurological disorders, including infectious diseases. So far NfL has not been assessed in cerebral malaria in human or its rodent model experimental cerebral malaria (ECM), a disease that can lead to fatal brain edema or reversible brain edema. In this study we assessed if NfL serum levels can also grade disease severity in an ECM mouse model with reversible (n = 11) and irreversible edema (n = 10). Blood-brain-barrier disruption and brain volume were determined by magnetic resonance imaging. Neurofilament density volume as well as structural integrity were examined by electron microscopy in regions of most severe brain damage (olfactory bulb (OB), cortex and brainstem). NfL plasma levels in mice with irreversible edema (317.0 ± 45.01 pg/ml) or reversible edema (528.3 ± 125.4 pg/ml) were significantly increased compared to controls (103.4 ± 25.78 pg/ml) by three to five fold, but did not differ significantly in mice with reversible or irreversible edema. In both reversible and irreversible edema, the brain region most affected was the OB with highest level of blood-brain-barrier disruption and most pronounced decrease in neurofilament density volume, which correlated with NfL plasma levels (r = - 0.68, p = 0.045). In cortical and brainstem regions neurofilament density was only decreased in mice with irreversible edema and strongest in the brainstem. In reversible edema NfL plasma levels, MRI findings and neurofilament volume density normalized at 3 months' follow-up. In conclusion, NfL plasma levels are elevated during ECM confirming brain damage. However, NfL plasma levels fail short on reliably indicating on the final outcomes in the acute disease stage that could be either fatal or reversible. Increased levels of plasma NfL during the acute disease stage are thus likely driven by the anatomical location of brain damage, the olfactory bulb, a region that serves as cerebral draining pathway into the nasal lymphatics.
Keywords
Acute Disease, Animals, Biomarkers, Brain/diagnostic imaging, Brain Edema/diagnostic imaging, Brain Injuries, Intermediate Filaments, Malaria, Cerebral/diagnostic imaging, Mice, Neurofilament Proteins
Pubmed
Web of science
Open Access
Yes
Create date
04/07/2022 13:19
Last modification date
23/11/2022 7:17
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