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Differential effect of ethanol intoxication on peripheral markers of cerebral injury in murine blunt traumatic brain injury

Authors
  • Li, Zhenghui1, 2
  • Zhang, Jin1
  • Halbgebauer, Steffen1
  • Chandrasekar, Akila1
  • Rehman, Rida1
  • Ludolph, Albert1, 3
  • Boeckers, Tobias3, 4
  • Huber-Lang, Markus5
  • Otto, Markus1
  • Roselli, Francesco1, 3
  • Heuvel, Florian olde1
  • 1 Ulm University, Germany , (Germany)
  • 2 Department of Neurosurgery, Kaifeng Central Hospital, China , (China)
  • 3 German Center for Neurodegenerative Diseases (DZNE), Germany , (Germany)
  • 4 Institute of Anatomy and Cell Biology, Germany , (Germany)
  • 5 Institute of Clinical and Experimental Trauma-Immunology, Germany , (Germany)
Type
Published Article
Journal
Burns & Trauma
Publisher
Oxford University Press
Publication Date
Sep 30, 2021
Volume
9
Identifiers
DOI: 10.1093/burnst/tkab027
PMID: 34604393
PMCID: PMC8484207
Source
PubMed Central
Keywords
Disciplines
  • AcademicSubjects/MED00010
License
Unknown

Abstract

Background Blood-based biomarkers have proven to be a reliable measure of the severity and outcome of traumatic brain injury (TBI) in both murine models and patients. In particular, neuron-specific enolase (NSE), neurofilament light (NFL) and S100 beta (S100B) have been investigated in the clinical setting post-injury. Ethanol intoxication (EI) remains a significant comorbidity in TBI, with 30–40% of patients having a positive blood alcohol concentration post-TBI. The effect of ethanol on blood-based biomarkers for the prognosis and diagnosis of TBI remains unclear. In this study, we investigated the effect of EI on NSE, NFL and S100B and their correlation with blood–brain barrier integrity in a murine model of TBI. Methods We used ultra-sensitive single-molecule array technology and enzyme-linked immunosorbent assay methods to measure NFL, NSE, S100B and claudin-5 concentrations in plasma 3 hours post-TBI. Results We showed that NFL, NSE and S100B were increased at 3 hours post-TBI. Interestingly, ethanol blood concentrations showed an inverse correlation with NSE but not with NFL or S100B. Claudin-5 levels were increased post-injury but no difference was detected compared to ethanol pretreatment. The increase in claudin-5 post-TBI was correlated with NFL but not with NSE or S100B. Conclusions Ethanol induces an effect on biomarker release in the bloodstream that is different from TBI not influenced by alcohol. This could be the basis of investigations into humans.

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