Glial fibrillary acidic protein and ubiquitin C-terminal hydrolase-L1 are not specific biomarkers for mild CT-negative traumatic brain injury

Jussi P. Posti (Corresponding Author), Iftakher Hossain, Riikka S.K. Takala, Hilkka Liedes, Virginia Newcombe, Joanne Outtrim, Ari J. Katila, Janek Frantzén, Henna Ala-Seppälä, Jonathan P. Coles, Anna Kyllönen, Henna-Riikka Maanpää, Jussi Tallus, Peter J. Hutchinson, Mark van Gils, David K. Menon, Olli Tenovuo,

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Abstract

Glial fibrillary acidic protein (GFAP) and ubiquitin C-terminal hydrolase-L1 (UCH-L1) have been studied as potential biomarkers of mild traumatic brain injury (mTBI). We report the levels of GFAP and UCH-L1 in patients with acute orthopedic injuries without central nervous system involvement, and relate them to the type of extracranial injury, head magnetic resonance imaging (MRI) findings, and levels of GFAP and UCH-L1 in patients with CT-negative mTBI. Serum UCH-L1 and GFAP were longitudinally measured from 73 patients with acute orthopedic injury on arrival and on days 1, 2, 3, 7 after admission, and on the follow-up visit 3-10 months after the injury. The injury types were recorded, and 71% patients underwent also head MRI. The results were compared with those found in patients with CT-negative mTBI (n = 93). The levels of GFAP were higher in patients with acute orthopedic trauma than in patients with CT-negative mTBI (p = 0.026) on arrival; however, no differences were found on the following days. The levels of UCH-L1 were not significantly different between these two groups at any measured point of time. Levels of GFAP and UCH-L1 were not able to distinguish patients with CT-negative mTBI from patients with orthopedic trauma. Patients with orthopedic trauma and high levels of UCH-L1 or GFAP values may be falsely diagnosed as having a concomitant mTBI, predisposing them to unwarranted diagnostics and unnecessary brain imaging. This casts a significant doubt on the diagnostic value of GFAP and UCH-L1 in cases with mTBI.
Original languageEnglish
Pages (from-to)1427-1438
Number of pages12
JournalJournal of Neurotrauma
Volume34
Issue number7
DOIs
Publication statusPublished - 1 Apr 2017
MoE publication typeA1 Journal article-refereed

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Ubiquitin Thiolesterase
Glial Fibrillary Acidic Protein
Brain Concussion
Protein C
Biomarkers
Orthopedics
Wounds and Injuries
Magnetic Resonance Imaging
Traumatic Brain Injury
Craniocerebral Trauma
Neuroimaging

Keywords

  • biomarker
  • GFAP
  • orthopedic injury
  • TBI
  • UCH-L1

Cite this

Posti, Jussi P. ; Hossain, Iftakher ; Takala, Riikka S.K. ; Liedes, Hilkka ; Newcombe, Virginia ; Outtrim, Joanne ; Katila, Ari J. ; Frantzén, Janek ; Ala-Seppälä, Henna ; Coles, Jonathan P. ; Kyllönen, Anna ; Maanpää, Henna-Riikka ; Tallus, Jussi ; Hutchinson, Peter J. ; van Gils, Mark ; Menon, David K. ; Tenovuo, Olli. / Glial fibrillary acidic protein and ubiquitin C-terminal hydrolase-L1 are not specific biomarkers for mild CT-negative traumatic brain injury. In: Journal of Neurotrauma. 2017 ; Vol. 34, No. 7. pp. 1427-1438.
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abstract = "Glial fibrillary acidic protein (GFAP) and ubiquitin C-terminal hydrolase-L1 (UCH-L1) have been studied as potential biomarkers of mild traumatic brain injury (mTBI). We report the levels of GFAP and UCH-L1 in patients with acute orthopedic injuries without central nervous system involvement, and relate them to the type of extracranial injury, head magnetic resonance imaging (MRI) findings, and levels of GFAP and UCH-L1 in patients with CT-negative mTBI. Serum UCH-L1 and GFAP were longitudinally measured from 73 patients with acute orthopedic injury on arrival and on days 1, 2, 3, 7 after admission, and on the follow-up visit 3-10 months after the injury. The injury types were recorded, and 71{\%} patients underwent also head MRI. The results were compared with those found in patients with CT-negative mTBI (n = 93). The levels of GFAP were higher in patients with acute orthopedic trauma than in patients with CT-negative mTBI (p = 0.026) on arrival; however, no differences were found on the following days. The levels of UCH-L1 were not significantly different between these two groups at any measured point of time. Levels of GFAP and UCH-L1 were not able to distinguish patients with CT-negative mTBI from patients with orthopedic trauma. Patients with orthopedic trauma and high levels of UCH-L1 or GFAP values may be falsely diagnosed as having a concomitant mTBI, predisposing them to unwarranted diagnostics and unnecessary brain imaging. This casts a significant doubt on the diagnostic value of GFAP and UCH-L1 in cases with mTBI.",
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Posti, JP, Hossain, I, Takala, RSK, Liedes, H, Newcombe, V, Outtrim, J, Katila, AJ, Frantzén, J, Ala-Seppälä, H, Coles, JP, Kyllönen, A, Maanpää, H-R, Tallus, J, Hutchinson, PJ, van Gils, M, Menon, DK, Tenovuo, O 2017, 'Glial fibrillary acidic protein and ubiquitin C-terminal hydrolase-L1 are not specific biomarkers for mild CT-negative traumatic brain injury', Journal of Neurotrauma, vol. 34, no. 7, pp. 1427-1438. https://doi.org/10.1089/neu.2016.4442

Glial fibrillary acidic protein and ubiquitin C-terminal hydrolase-L1 are not specific biomarkers for mild CT-negative traumatic brain injury. / Posti, Jussi P. (Corresponding Author); Hossain, Iftakher; Takala, Riikka S.K.; Liedes, Hilkka; Newcombe, Virginia; Outtrim, Joanne; Katila, Ari J.; Frantzén, Janek; Ala-Seppälä, Henna; Coles, Jonathan P.; Kyllönen, Anna; Maanpää, Henna-Riikka; Tallus, Jussi; Hutchinson, Peter J.; van Gils, Mark; Menon, David K.; Tenovuo, Olli.

In: Journal of Neurotrauma, Vol. 34, No. 7, 01.04.2017, p. 1427-1438.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Posti, Jussi P.

AU - Hossain, Iftakher

AU - Takala, Riikka S.K.

AU - Liedes, Hilkka

AU - Newcombe, Virginia

AU - Outtrim, Joanne

AU - Katila, Ari J.

AU - Frantzén, Janek

AU - Ala-Seppälä, Henna

AU - Coles, Jonathan P.

AU - Kyllönen, Anna

AU - Maanpää, Henna-Riikka

AU - Tallus, Jussi

AU - Hutchinson, Peter J.

AU - van Gils, Mark

AU - Menon, David K.

AU - Tenovuo, Olli

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N2 - Glial fibrillary acidic protein (GFAP) and ubiquitin C-terminal hydrolase-L1 (UCH-L1) have been studied as potential biomarkers of mild traumatic brain injury (mTBI). We report the levels of GFAP and UCH-L1 in patients with acute orthopedic injuries without central nervous system involvement, and relate them to the type of extracranial injury, head magnetic resonance imaging (MRI) findings, and levels of GFAP and UCH-L1 in patients with CT-negative mTBI. Serum UCH-L1 and GFAP were longitudinally measured from 73 patients with acute orthopedic injury on arrival and on days 1, 2, 3, 7 after admission, and on the follow-up visit 3-10 months after the injury. The injury types were recorded, and 71% patients underwent also head MRI. The results were compared with those found in patients with CT-negative mTBI (n = 93). The levels of GFAP were higher in patients with acute orthopedic trauma than in patients with CT-negative mTBI (p = 0.026) on arrival; however, no differences were found on the following days. The levels of UCH-L1 were not significantly different between these two groups at any measured point of time. Levels of GFAP and UCH-L1 were not able to distinguish patients with CT-negative mTBI from patients with orthopedic trauma. Patients with orthopedic trauma and high levels of UCH-L1 or GFAP values may be falsely diagnosed as having a concomitant mTBI, predisposing them to unwarranted diagnostics and unnecessary brain imaging. This casts a significant doubt on the diagnostic value of GFAP and UCH-L1 in cases with mTBI.

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KW - GFAP

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KW - TBI

KW - UCH-L1

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