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brain trauma traumatic injury biomarker

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https://www.readbyqxmd.com/read/29717620/age-related-differences-in-diagnostic-accuracy-of-plasma-gfap-and-tau-for-identifying-acute-intracranial-trauma-on-ct-a-track-tbi-study
#1
Raquel C Gardner, Richard Rubenstein, Kevin K W Wang, Frederick Kofi Korley, John K Yue, Esther Lim Yuh, Pratik Mukherjee, Alex Valadka, David O Okonkwo, Ramon Diaz-Arrastia, Geoffrey Manley
Plasma tau and glial fibrillary acidic protein (GFAP) are promising biomarkers for identifying traumatic brain injury (TBI) patients with intracranial trauma on CT. Accuracy in older adults with mild TBI (mTBI), the fastest growing TBI population, is unknown. Our aim was to assess for age-related differences in diagnostic accuracy of plasma tau and GFAP for identifying intracranial trauma on CT. Samples from 169 patients (age <40y [n=79], age 40-59y [n=60], age 60y+ [n=30]), a subset of patients from the TRACK-TBI Pilot study, who presented with mTBI (GCS 13-15), received head CT, and consented to blood-draw within 24h of injury were assayed for hyperphosphorylated-tau (P-tau), total-tau (T-tau; both via amplification-linked enhanced immunoassay using multi-arrayed fiberoptics), and GFAP (via sandwich enzyme-linked immunosorbent assay)...
May 2, 2018: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29716980/the-biomarker-s100b-and-mild-traumatic-brain-injury-a-meta-analysis
#2
REVIEW
Charlotte Oris, Bruno Pereira, Julie Durif, Jeanne Simon-Pimmel, Christoph Castellani, Sergio Manzano, Vincent Sapin, Damien Bouvier
CONTEXT: The usefulness of S100B has been noted as a biomarker in the management of mild traumatic brain injury (mTBI) in adults. However, S100B efficacy as a biomarker in children has previously been relatively unclear. OBJECTIVE: A meta-analysis is conducted to assess the prognostic value of S100B in predicting intracerebral lesions in children after mTBI. DATA SOURCES: Medline, Embase, the Cochrane Central Register of Controlled Trials (CENTRAL), Web of Science, Scopus, and Google Scholar...
May 1, 2018: Pediatrics
https://www.readbyqxmd.com/read/29677216/plasma-metabolomic-biomarkers-accurately-classify-acute-mild-traumatic-brain-injury-from-controls
#3
Massimo S Fiandaca, Mark Mapstone, Amin Mahmoodi, Thomas Gross, Fabio Macciardi, Amrita K Cheema, Kian Merchant-Borna, Jeffrey Bazarian, Howard J Federoff
Past and recent attempts at devising objective biomarkers for traumatic brain injury (TBI) in both blood and cerebrospinal fluid have focused on abundance measures of time-dependent proteins. Similar independent determinants would be most welcome in diagnosing the most common form of TBI, mild TBI (mTBI), which remains difficult to define and confirm based solely on clinical criteria. There are currently no consensus diagnostic measures that objectively define individuals as having sustained an acute mTBI. Plasma metabolomic analyses have recently evolved to offer an alternative to proteomic analyses, offering an orthogonal diagnostic measure to what is currently available...
2018: PloS One
https://www.readbyqxmd.com/read/29609518/vascular-abnormalities-within-normal-appearing-tissue-in-chronic-traumatic-brain-injury
#4
Margalit Haber, Franck Amyot, Kimbra Kenney, Tawny Meredith-Duliba, Carol Moore, Erika Silverman, Jamie Podell, Yi-Yu Chou, Dzung L Pham, John Butman, Hanzang Lu, Ramon Diaz-Arrastia, Danielle Sandsmark
Magnetic resonance imaging (MRI) is a powerful tool for visualizing traumatic brain injury(TBI)-related lesions. Trauma-induced encephalomalacia is frequently identified by its hyperintense appearance on fluid-attenuated inversion recovery (FLAIR) sequences. In addition to parenchymal lesions, TBI commonly results in cerebral microvascular injury, but its anatomic relationship to parenchymal encephalomalacia is not well characterized. The current study utilized a multimodal MRI protocol to assess microstructural tissue integrity [via mean diffusivity (MD) and fractional aniosotropy (FA)], and altered vascular function [via cerebral blood flow (CBF) and cerebral vascular reactivity (CVR)], within regions of visible encephalomalacia and normal appearing tissue in 27 chronic TBI (minimum 6 months after injury) subjects...
April 2, 2018: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29560370/acute-vitreoretinal-trauma-and-inflammation-after-traumatic-brain-injury-in-mice
#5
Lucy P Evans, Elizabeth A Newell, MaryAnn Mahajan, Stephen H Tsang, Polly J Ferguson, Jolonda Mahoney, Christopher D Hue, Edward W Vogel, Barclay Morrison, Ottavio Arancio, Russell Nichols, Alexander G Bassuk, Vinit B Mahajan
Objective: Limited attention has been given to ocular injuries associated with traumatic brain injury (TBI). The retina is an extension of the central nervous system and evaluation of ocular damage may offer a less-invasive approach to gauge TBI severity and response to treatment. We aim to characterize acute changes in the mouse eye after exposure to two different models of TBI to assess the utility of eye damage as a surrogate to brain injury. Methods: A model of blast TBI (bTBI) using a shock tube was compared to a lateral fluid percussion injury model (LFPI) using fluid pressure applied directly to the brain...
March 2018: Annals of Clinical and Translational Neurology
https://www.readbyqxmd.com/read/29559087/noncoding-rnas-stress-glucocorticoids-and-posttraumatic-stress-disorder
#6
REVIEW
Nikolaos P Daskalakis, Allison C Provost, Richard G Hunter, Guia Guffanti
Posttraumatic stress disorder (PTSD) is a pathologic response to trauma that impacts ∼8% of the population and is highly comorbid with other disorders, such as traumatic brain injury. PTSD affects multiple biological systems throughout the body, including the hypothalamic-pituitary-adrenal axis, cortical function, and the immune system, and while the study of the biological underpinnings of PTSD and related disorders are numerous, the roles of noncoding RNAs (ncRNAs) are just emerging. Moreover, deep sequencing has revealed that ncRNAs represent most of the transcribed mammalian genome...
January 31, 2018: Biological Psychiatry
https://www.readbyqxmd.com/read/29557885/the-s100a10-pathway-mediates-an-occult-hyperfibrinolytic-subtype-in-trauma-patients
#7
Lewis S Gall, Paul Vulliamy, Scarlett Gillespie, Timothy F Jones, Rochelle S J Pierre, Sabine E Breukers, Christine Gaarder, Nicole P Juffermans, Marc Maegele, Jakob Stensballe, Pär I Johansson, Ross A Davenport, Karim Brohi
OBJECTIVE: To determine the characteristics of trauma patients with low levels of fibrinolysis as detected by viscoelastic hemostatic assay (VHA) and explore the underlying mechanisms of this subtype. BACKGROUND: Hyperfibrinolysis is a central component of acute traumatic coagulopathy but a group of patients present with low levels of VHA-detected fibrinolysis. There is concern that these patients may be at risk of thrombosis if empirically administered an antifibrinolytic agent...
March 19, 2018: Annals of Surgery
https://www.readbyqxmd.com/read/29555324/plasma-d-dimer-safely-reduces-unnecessary-ct-scans-obtained-in-the-evaluation-of-pediatric-head-trauma
#8
Simone Langness, Erin Ward, Jonathan Halbach, Radhames Lizardo, Katherine Davenport, Stephen Bickler, Karen Kling, Hari Thangarajah, Julia Grabowski, Timothy Fairbanks
PURPOSE: Serum D-dimer has been proposed as a biomarker to aid in the diagnosis of pediatric traumatic brain injury (TBI). We investigated the accuracy of D-dimer in predicting the absence of TBI and evaluated the degree by which D-dimer could limit unnecessary computed tomography scans of the head (CTH). METHODS: Retrospective review of patients with suspected TBI from 2011 to 2013 who underwent evaluation with CTH and quantitative D-dimer. D-dimer levels were compared among patients with clinically-important TBI (ciTBI), TBI, isolated skull fracture and no injury...
April 2018: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/29422067/predictors-of-hospital-mortality-in-adult-trauma-patients-receiving-extracorporeal-membrane-oxygenation-for-advanced-life-support-a-retrospective-cohort-study
#9
Meng-Yu Wu, Pin-Li Chou, Tzu-I Wu, Pyng-Jing Lin
BACKGROUND: Using extracorporeal membrane oxygenation (ECMO) to provide advanced life support in adult trauma patients remains a controversial issue now. The study was aimed at identifying the independent predictors of hospital mortality in adult trauma patients receiving ECMO for advanced cardiopulmonary dysfunctions. METHODS: This retrospective study enrolled 36 adult trauma patients receiving ECMO due to advanced shock or respiratory failure in a level I trauma center between August 2006 and October 2014...
February 8, 2018: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
https://www.readbyqxmd.com/read/29408171/serum-s100a12-as-a-prognostic-biomarker-of-severe-traumatic-brain-injury
#10
Ma-Jing Feng, Wei-Bin Ning, Wei Wang, Zhong-Hua Lv, Xin-Bing Liu, Yong Zhu, Wei Gao, Hong-Ze Jin, Shu-Shan Gao
BACKGROUND: S100A12 is related to acute brain injury and inflammation. We investigated the clinical prognostic value of serum S100A12 in patients with severe traumatic brain injury (sTBI). METHODS: Serum S100A12, S100B, C-reactive protein (CRP), interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-α) concentrations were measured in 102 healthy controls and 102 sTBI patients. We recorded 30-day mortality and in-hospital major adverse events (IMAEs) including acute lung injury, acute traumatic coagulopathy, progressive hemorrhagic injury and posttraumatic cerebral infarction...
May 2018: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29402984/clinical-pathological-study-on-%C3%AE-app-il-1%C3%AE-gfap-nfl-spectrin-ii-8ohdg-tunel-mir-21-mir-16-mir-92-expressions-to-verify-dai-diagnosis-grade-and-prognosis
#11
Enrica Pinchi, Alessandro Frati, Luigi Cipolloni, Mariarosaria Aromatario, Vittorio Gatto, Raffaele La Russa, Alessandro Pesce, Alessandro Santurro, Flavia Fraschetti, Paola Frati, Vittorio Fineschi
Traumatic brain injury (TBI) is one of the most important death and disability cause, involving substantial costs, also in economic terms, when considering the young age of the involved subject. Aim of this paper is to report a series of patients treated at our institutions, to verify neurological results at six months or survival; in fatal cases we searched for βAPP, GFAP, IL-1β, NFL, Spectrin II, TUNEL and miR-21, miR-16, and miR-92 expressions in brain samples, to verify DAI diagnosis and grade as strong predictor of survival and inflammatory response...
February 5, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29306988/acute-phase-response-after-fatal-traumatic-brain-injury
#12
Benjamin Ondruschka, Sandra Schuch, Dirk Pohlers, Heike Franke, Jan Dreßler
An inflammatory response occurring after fatal traumatic brain injury (TBI) initiates time-dependent cascades of acute phase response. This may offer the potential to monitor postmortem biomarker levels of several pro-inflammatory cytokines to gain information about the cause of death and the trauma survival time. Cerebrospinal fluid (CSF) and serum samples were collected from forensic autopsies of 95 adult cadavers after postmortem intervals up to 6 days. The cases were divided according to their cause of death into fatal TBI (n = 46) with different survival times and age- and gender-matching non-TBI fatalities as controls (n = 49)...
March 2018: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/29283022/cns-injury-posttranslational-modification-of-the-tau-protein-as-a-biomarker
#13
Mitchell T Caprelli, Andrea J Mothe, Charles H Tator
The ideal biomarker for central nervous system (CNS) trauma in patients would be a molecular marker specific for injured nervous tissue that would provide a consistent and reliable assessment of the presence and severity of injury and the prognosis for recovery. One candidate biomarker is the protein tau, a microtubule-associated protein abundant in the axonal compartment of CNS neurons. Following axonal injury, tau becomes modified primarily by hyperphosphorylation of its various amino acid residues and cleavage into smaller fragments...
November 1, 2017: Neuroscientist: a Review Journal Bringing Neurobiology, Neurology and Psychiatry
https://www.readbyqxmd.com/read/29239310/micrornas-as-diagnostic-markers-and-therapeutic-targets-for-traumatic-brain-injury
#14
REVIEW
Bridget Martinez, Philip V Peplow
Traumatic brain injury (TBI) is characterized by primary damage to the brain from the external mechanical force and by subsequent secondary injury due to various molecular and pathophysiological responses that eventually lead to neuronal cell death. Secondary brain injury events may occur minutes, hours, or even days after the trauma, and provide valuable therapeutic targets to prevent further neuronal degeneration. At the present time, there is no effective treatment for TBI due, in part, to the widespread impact of numerous complex secondary biochemical and pathophysiological events occurring at different time points following the initial injury...
November 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/29110773/cerebrospinal-fluid-and-brain-extracellular-fluid-in-severe-brain-trauma
#15
Raimund Helbok, Ronny Beer
Traumatic brain injury is a major cause of morbidity and mortality worldwide. Pathophysiologic mechanisms of secondary brain injury are complex and still not fully understood. Cerebrospinal fluid deserves attention to detect infectious complications and to identify biomarkers of disease severity and impending secondary brain injury. As an adjunct, cerebral microdialysis (CMD) allows online measurements of biomarkers derived directly from brain extracellular fluid. We critically review relevant literature related to infectious complications detectable in the cerebrospinal fluid in trauma patients...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/28981341/biofluid-biomarkers-of-traumatic-brain-injury
#16
Denes V Agoston, Andrew Shutes-David, Elaine R Peskind
PRIMARY OBJECTIVE: The purpose of this paper is to review the clinical and research utility and applications of blood, cerebrospinal fluid (CSF), and cerebral microdialysis biomarkers in traumatic brain injury (TBI). RESEARCH DESIGN: Not applicable. METHODS AND PROCEDURES: A selective review was performed on these biofluid biomarkers in TBI. MAIN OUTCOME AND RESULTS: Neurofilament heavy chain protein (NF-H), glial fibrillary acidic protein (GFAP), ubiquitin C-terminal hydrolase-L1 (UCHL1), neuron-specific enolase (NSE), myelin basic protein (MBP), tau, and s100β blood biomarkers are elevated during the acute phase of severe head trauma but have key limitations in their research and clinical applications to mild TBI (mTBI)...
2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28975240/research-gaps-and-controversies-in-chronic-traumatic-encephalopathy-a-review
#17
REVIEW
Breton M Asken, Molly J Sullan, Steven T DeKosky, Michael S Jaffee, Russell M Bauer
Importance: Scientific and lay interest in negative outcomes associated with exposure to repetitive brain trauma (RBT) continues to strengthen. Concerns about the association between RBT and dementia began more than a century ago, but have resurfaced in the last decade with the more recently described chronic traumatic encephalopathy (CTE). Chronic traumatic encephalopathy is a tauopathy associated with RBT that has become inextricably linked to conversations about sport-related concussion and mild traumatic brain injury...
October 1, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/28931364/plasminogen-activator-inhibitor-type-1-a-possible-novel-biomarker-of-late-pituitary-dysfunction-after-mild-traumatic-brain-injury
#18
Istvan Frendl, Monika Katko, Erika Galgoczi, Judit Boda, Noemi Zsiros, Zoltan Nemeti, Zsuzsanna Bereczky, Renata Hudak, Janos Kappelmayer, Annamaria Erdei, Bela Turchanyi, Endre V Nagy
More than 80% of traumatic brain injury (TBI) patients suffer from mild TBI (mTBI). However, even mTBI carries the risk of late pituitary dysfunction. A predictive biomarker at the time of injury that could identify patients who subsequently may develop permanent pituitary dysfunction would help to direct patients toward endocrine care. We enrolled 508 TBI patients (406 with mTBI) into our study. Blood samples were collected for identification of predictive biomarkers of late pituitary dysfunction at the time of admission...
December 1, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28921171/high-fibrin-fibrinogen-degradation-product-to-fibrinogen-ratio-is-associated-with-28-day-mortality-and-massive-transfusion-in-severe-trauma
#19
D H Lee, B K Lee, S M Noh, Y S Cho
PURPOSE: There is a lack of association between coagulation biomarkers and long-term mortality in severe trauma. We aimed to investigate the association between coagulation biomarkers on admission and outcome of late stage of trauma. METHODS: This retrospective observational study included patients admitted with severe trauma between 2012 and 2015. We used the area under the receiver operating characteristic curve (AUROC) of coagulation biomarkers to determine 28-day mortality...
September 18, 2017: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
https://www.readbyqxmd.com/read/28868043/metabolomics-profiling-as-a-diagnostic-tool-in-severe-traumatic-brain-injury
#20
REVIEW
Jussi P Posti, Alex M Dickens, Matej Orešič, Tuulia Hyötyläinen, Olli Tenovuo
Traumatic brain injury (TBI) is a complex disease with a multifaceted pathophysiology. Impairment of energy metabolism is a key component of secondary insults. This phenomenon is a consequence of multiple potential mechanisms including diffusion hypoxia, mitochondrial failure, and increased energy needs due to systemic trauma responses, seizures, or spreading depolarization. The degree of disturbance in brain metabolism is affected by treatment interventions and reflected in clinical patient outcome. Hence, monitoring of these secondary events in peripheral blood will provide a window into the pathophysiological course of severe TBI...
2017: Frontiers in Neurology
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