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Serum neurofilament light protein predicts clinical outcome in traumatic brain injury
Clinical Neurochemistry Laboratory, Institute of Neuroscience and Physiology, Sahlgrenska Academy at University of Gothenburg, Sahlgrenska University Hospita.
Institute of Neuroscience and Physiology / The Sahlgrenska Academy, Gothenburg.
Institute of Neuroscience and Physiology / The Sahlgrenska Academy, Gothenburg.
Institute of Neuroscience and Physiology, The Sahlgrenska Academy at University of Gothenburg.
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Number of Authors: 12
2016 (English)In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 6, 36791Article in journal (Refereed) Published
Abstract [en]

Axonal white matter injury is believed to be a major determinant of adverse outcomes following traumatic brain injury (TBI). We hypothesized that measurement of neurofilament light protein (NF-L), a protein found in long white-matter axons, in blood samples, may serve as a suitable biomarker for neuronal damage in TBI patients. To test our hypotheses, we designed a study in two parts: i) we developed an immunoassay based on Single molecule array technology for quantification of NF-L in blood, and ii) in a proof-of-concept study, we tested our newly developed method on serial serum samples from severe TBI (sTBI) patients (n = 72) and controls (n = 35). We also compared the diagnostic and prognostic utility of NF-L with the established blood biomarker S100B. NF-L levels were markedly increased in sTBI patients compared with controls. NF-L at admission yielded an AUC of 0.99 to detect TBI versus controls (AUC 0.96 for S100B), and increased to 1.00 at day 12 (0.65 for S100B). Importantly, initial NF-L levels predicted poor 12-month clinical outcome. In contrast, S100B was not related to outcome. Taken together, our data suggests that measurement of serum NF-L may be useful to assess the severity of neuronal injury following sTBI.

Place, publisher, year, edition, pages
2016. Vol. 6, 36791
National Category
Other Health Sciences
Research subject
Health Science
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URN: urn:nbn:se:ltu:diva-60414DOI: 10.1038/srep36791ISI: 000387073100001PubMedID: 27819296ScopusID: 2-s2.0-84994908954&OAI: oai:DiVA.org:ltu-60414DiVA: diva2:1046715
Note

Validerad; 2016; Nivå 2; 2016-11-15 (andbra)

Available from: 2016-11-15 Created: 2016-11-15 Last updated: 2016-11-25Bibliographically approved

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