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Journal of Neurotrauma

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https://www.readbyqxmd.com/read/28338402/testosterone-plus-finasteride-prevents-bone-loss-without-prostate-growth-in-a-rodent-spinal-cord-injury-model
#1
Joshua F Yarrow, Ean G Phillips, Christine F Conover, Taylor E Bassett, Cong Chen, Tyler Teurlings, Andrea Vasconez, Jonathan Alerte, Hannah M Prock, Jessica M Jiron, Micah Flores, J Ignacio Aguirre, Stephen E Borst, Fan Ye
We have reported that testosterone-enanthate (TE) prevents the musculoskeletal decline occurring acutely after spinal cord injury (SCI), but results in a near doubling of prostate mass. Our purpose was to test the hypothesis that administration of TE plus finasteride (FIN, type II 5α-reductase inhibitor) would prevent the chronic musculoskeletal deficits in our rodent severe contusion SCI model, without inducing prostate enlargement. Forty-three 16-week old male Sprague-Dawley rats received: (1) SHAM surgery (T9 laminectomy), (2) severe (250 kdyne) contusion SCI, (3) SCI+TE (7...
March 24, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28335684/bone-marrow-derived-endothelial-progenitor-cell-treatment-in-a-model-of-lateral-fluid-percussion-injury-in-rats-evaluation-of-acute-and-subacute-outcome-measures
#2
Eugene Park, Katya J Park, Elaine Liu, Rongcai Jiang, Jian-Ning Zhang, Andrew J Baker
Traumatic brain injury (TBI) continues to be a serious healthcare issue while therapies to treat TBI remain elusive. Promising results from the use of endothelial progenitor cells (EPCs) in numerous disease states highlight the pleiotropic capacity of this cell type. We have previously demonstrated that EPC conditioned media reduces axonal degeneration following in vitro OGD insult and concurrently improves white matter and microvascular outcome in vivo following midline fluid percussion injury. In the current study we evaluated the effectiveness of allogeneic endothelial cells derived from rat bone marrow on microvascular recovery and neuronal sparing following lateral fluid percussion injury...
March 23, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28335668/directions-for-use-of-intracranial-pressure-monitoring-in-treatment-of-severe-traumatic-brain-injury-using-data-from-the-japan-neurotrauma-data-bank
#3
Eiichi Suehiro, Yuichi Fujiyama, Hiroyasu Koizumi, Michiyasu Suzuki
Neuromonitoring can be used to observe intracranial pathological conditions in neurointensive care, but use of intracranial pressure (ICP) monitoring is low in Japan. In this study, we retrospectively investigated the effects of ICP monitoring in treatment of severe traumatic brain injury (TBI) using data from the Japan Neurotrauma Data Bank (JNTDB). The study was conducted in 1,091 subjects enrolled in the JNTDB (Project 2009) from July 2009 to June 2011. The subjects were divided into those treated with and without ICP monitoring in intensive care for severe TBI...
March 23, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28335664/cognitive-behavioral-intervention-compared-to-telephone-counselling-early-after-mild-traumatic-brain-injury-a-randomized-trial
#4
Myrthe Elisabeth Scheenen, Annemarie Cecile Visser-Keizer, Myrthe Elisabeth de Koning, Harm Jan van der Horn, Peter van de Sande, Marlies Elisabeth van Kessel, Joukje van der Naalt, Jacoba M Spikman
Many patients do not return to work (RTW) following mild Traumatic Brain Injury (mTBI) due to persistent complaints that are often resistant to therapy in the chronic phase. Recent studies suggest that psychological interventions should be implemented early after injury to prevent patients from developing chronic complaints. This study is a randomized controlled trial which examines the effectiveness of a newly developed CBT intervention (CBTi) compared to telephonic counseling (TC) in at risk mTBI patients (patients with high reports of early complaints)...
March 23, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28330412/early-asymmetric-cardio-cerebral-causality-and-outcome-after-severe-traumatic-brain-injury
#5
Lei Gao, Peter Smieleweski, Marek Czosnyka, Ari Ercole
The brain and heart are two vital systems in health and disease, increasingly recognised as a complex, interdependent network with constant information flow in both directions. After severe traumatic brain injury (TBI), the causal, directed interactions between the brain, heart and autonomic nervous system have not been well established. Novel methods are needed to probe unmeasured, potentially prognostic information in complex biological networks that are not revealed via traditional means. In this study, we examined potential bi-directional causality between intracranial pressure (ICP), mean arterial pressure (MAP) and heart rate (HR) and its relationship to mortality in a 24-hour period early after TBI...
March 23, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28326890/functional-and-molecular-correlates-following-single-and-repeated-rat-closed-head-concussion-indices-of-vulnerability-following-brain-injury
#6
Andrea Mountney, Angela Boutte, Casandra M Cartagena, William J Flerlage, David Johnson, Chanyang Rho, Xi-Chun M Lu, Angela M Yarnell, Sean R Marcsisin, Jason Sousa, Chau Vuong, Victor E Zottig, Lai Yee Leung, Ying Deng-Bryant, Janice Gilsdorf, Frank C Tortella, Deborah A Shear
Closed-head concussive injury is one of the most common causes of traumatic brain injury (TBI). Isolated concussions frequently produce acute neurological impairments; however, individuals typically recover spontaneously within a short time frame. In contrast, brain injuries resulting from multiple concussions can result in cumulative damage and elevated risk of developing chronic brain pathologies, including chronic traumatic encephalopathy (CTE). Increased attention has focused on identification of diagnostic markers that can prognostically serve as indices of brain health after injury, revealing the temporal profile of vulnerability to a second insult...
March 22, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28325105/geomapping-of-traumatic-spinal-cord-injury-in-canada-and-factors-related-to-triage-pattern
#7
Christiana L Cheng, Vanessa K Noonan, Jayson Shurgold, Jason Chen, Carly S Rivers, Hamid Khaleghi Hamedani, Suzanne Humphreys, Christopher Bailey, Najmedden Attabib, Jean-Marc Mac-Thiong, Michael Goytan, Jérôme Paquet, Richard Fox, Henry Ahn, Brian K Kwon, Daryl R Fourney
Current research indicates that more than half of patients with traumatic spinal cord injury (tSCI) experience delays in transfer and receive surgery more than 24 hours post-injury. The objectives of this study were to determine the geographic distribution of tSCI in Canada relative to specialized treatment facilities, to assess clinical and logistical factors at play for indirect admissions to those facilities, and to explore differences in current time to admission and simulated scenarios in an attempt to assess the potential impact of changes to triage protocols...
March 22, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28325100/lateral-ventricle-attenuates-underlying-traumatic-axonal-injury-after-closed-head-injury-in-the-mouse
#8
James Bouley, Nils Henninger
Using model systems it has been suggested that the lateral ventricles could act as strain relievers and thereby mitigate traumatic axonal injury (TAI) in adjacent tissues by absorbing energy. We describe attenuated TAI at 48 hours after traumatic brain injury within the corpus callosum overlying the lateral ventricle of wild-type C57BL/6 mice subjected to weight-drop closed head injury. Specifically, there was a conspicuous attenuation of TAI beneath the lateral ventricle under the impact center as assessed by beta amyloid precursor protein staining...
March 22, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28230415/targeting-translational-successes-through-cansort-sci-using-pet-dogs-to-identify-effective-treatments-for-spinal-cord-injury
#9
Sarah A Moore, Nicolas Granger, Natasha J Olby, Ingo Spitzbarth, Nick D Jeffery, Andrea Tipold, Yvette S Nout-Lomas, Ronaldo C da Costa, Veronika M Stein, Linda J Noble-Haeusslein, Andrew R Blight, Robert G Grossman, D Michele Basso, Jonathan M Levine
Translation of therapeutic interventions for spinal cord injury (SCI) from laboratory to clinic has been historically challenging, highlighting the need for robust models of injury that more closely mirror the human condition. The high prevalence of acute, naturally occurring SCI in pet dogs provides a unique opportunity to evaluate expeditiously promising interventions in a population of animals that receive diagnoses and treatment clinically in a manner similar to persons with SCI, while adhering to National Institutes of Health guidelines for scientific rigor and transparent reporting...
March 22, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28125935/atraumatic-spine-distraction-induces-metabolic-distress-in-spinal-motor-neurons
#10
Jennifer E S Bell, Jennifer L Seifert, Eileen N Shimizu, Daniel J Sucato, Mario I Romero-Ortega
Corrective forces during spine deformity surgery, including distraction, impart significant stresses to the spinal cord that may result in permanent injury. Intraoperative neuromonitoring is commonly used by surgeons to recognize possible damage to the spinal cord in cases of evident traumatic or vascular damage to the spinal cord. However, mild insult to the spinal cord that does not result in obvious trauma or electrophysiological changes present a major clinical challenge as the mechanisms of this type of spinal cord injury (SCI) remain largely unknown, and thus preventive strategies are lacking...
March 22, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28323555/influence-of-dopamine-related-genes-on-neurobehavioral-recovery-after-traumatic-brain-injury-during-early-childhood
#11
Amery Treble-Barna, Shari L Wade, Lisa J Martin, Valentina Pilipenko, Keith Owen Yeates, H Gerry Taylor, Brad G Kurowski
The present study examined the association of dopamine-related genes with short- and long-term neurobehavioral recovery, as well as neurobehavioral recovery trajectories over time, in children who had sustained early childhood traumatic brain injuries (TBI) relative to children who had sustained orthopedic injuries (OI). Participants were recruited from a prospective, longitudinal study evaluating outcomes of children who sustained a TBI (n = 68) or OI (n = 72) between the ages of 3 and 7 years. Parents completed ratings of child executive function and behavior at the immediate post-acute period (0-3 months after injury); 6, 12, and 18 months after injury; and an average of 3...
March 21, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28323524/comparison-of-two-predictive-models-for-short-term-mortality-in-patients-after-severe-traumatic-brain-injury
#12
Klara Julia Kesmarky, Cécile Delhumeau, Marie Zenobi, Bernhard Walder
The Glasgow Coma Scale (GCS) and the abbreviated injury score of the head region (HAIS) are validated prognostic factors in traumatic brain injury (TBI). The aim of this study was to compare the prognostic performance of an alternative predictive model including motor GCS, pupillary reactivity, age, HAIS, and presence of multi-trauma for short term mortality with a reference predictive model including motor GCS, pupil reaction and age (IMPACT core model). A secondary analysis of a prospective epidemiological cohort study in Switzerland including patients after severe TBI (HAIS >3) with the outcome death at 14 days was performed...
March 21, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28323516/does-normobaric-hyperoxia-cause-oxidative-stress-in-the-injured-brain-a-microdialysis-study-using-8-iso-pgf2%C3%AE-as-a-biomarker
#13
Marian Vidal-Jorge, Angela Sánchez-Guerrero, Gemma Mur-Bonet, Lidia Castro, Andreea Rădoi, Marilyn Riveiro, Natividad Fernández-Prado, Jacinto Baena, Maria A Poca, Juan Sahuquillo
Significant controversy exists regarding the potential clinical benefit of normobaric hyperoxia therapy (NBO) in patients with traumatic brain injury (TBI). This study consisted of two aims: 1) to assess whether NBO improves brain oxygenation and metabolism and 2) to determine whether this therapy may increase the risk of oxidative stress (OxS), using 8-iso-PGF2α as a biomarker. Thirty-one patients with a median admission Glasgow Coma Scale score of 4 (min: 3, max: 12) were monitored with cerebral microdialysis and brain tissue oxygen sensors and treated with FiO2 of 1...
March 21, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28322622/central-nervous-system-changes-induced-by-underbody-blast-induced-hyperacceleration-an-in-vivo-diffusion-tensor-imaging-and-magnetic-resonance-spectroscopy-study
#14
Shiyu Tang, Su Xu, William L Fourney, Ulrich H Leiste, Julie L Proctor, Gary Fiskum, Rao P Gullapalli
Blast-related traumatic brain injury (bTBI) resulting from improvised explosive devices is the hallmark injury of recent wars, and affects many returning veterans who experienced either direct or indirect exposure. Many of these veterans have long-term neurocognitive symptoms. However, there is very little evidence to show whether blast-induced acceleration alone, in the absence of secondary impacts, can cause mild TBI. In this study, we examine the effect of under-vehicle blast-induced hyperacceleration (uBIH) of ∼1700 g on the biochemical and microstrucutral changes in the brain using diffusion tensor imaging (DTI) and magnetic resonance spectroscopy (MRS)...
March 21, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28322619/raising-the-bar-on-traumatic-brain-injury-biomarker-research-methods-make-a-difference
#15
Linda Papa, Kevin K W Wang
Research in blood-based traumatic brain injury (TBI) biomarkers has imploded over the last two decades and continues to grow at an unwavering pace. Commercialization of these biomarkers is ongoing, with a number of companies seeking FDA approval to market their test for clinical application. Although there are many papers being published, many lack the rigorous reporting required to adequately evaluate these markers for clinical use. Too often, there are inadequate sample sizes, inappropriate control groups and outcome measures, variable definitions of TBI, inconsistencies in when samples are drawn relative to time of injury, variability in how samples are processed and performance characteristics of the assays themselves are rarely known or poorly described...
March 21, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28228043/impact-of-exercise-on-clinical-symptom-report-and-neurocognition-after-concussion-in-children-and-adolescents
#16
Vicky Manikas, Franz E Babl, Stephen Hearps, Julian Dooley, Vicki Anderson
Recovery from concussion in childhood is poorly understood, despite its importance in decisions regarding return to normal activity. Resolution of post-concussive symptoms (PCS) is widely employed as a marker of recovery in clinical practice; however, it is unclear whether subtle impairments persist only to re-emerge in the context of increased physical or cognitive demands. This study aimed to examine the effect of strenuous exercise on clinical symptom report and neurocognition in children and adolescents after PCS resolution after concussion...
March 21, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28225648/safety-of-autologous-human-schwann-cell-transplantation-in-subacute-thoracic-spinal-cord-injury
#17
Kim D Anderson, James D Guest, W Dalton Dietrich, Mary Bartlett Bunge, Rosie Curiel, Marine Dididze, Barth A Green, Aisha Khan, Damien D Pearse, Efrat Saraf-Lavi, Eva Widerström-Noga, Patrick Wood, Allan D Levi
The rationale for implantation of autologous human Schwann cells (SCs) in persons with subacute spinal cord injury (SCI) is based on evidence that transplanted SCs are neuroprotective, support local axonal plasticity, and are capable of myelinating axons. A Phase I clinical trial was conducted to evaluate the safety of autologous human SC transplantation into the injury epicenter of six subjects with subacute SCI. The trial was an open-label, unblinded, non-randomized, non-placebo controlled study with a dose escalation design and standard medical rehabilitation...
March 21, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28145813/alteration-in-long-non-coding-rna-expression-after-traumatic-brain-injury-in-rats
#18
Chuan-Fang Wang, Cheng-Cheng Zhao, Wei-Ji Weng, Jin Lei, Yong Lin, Qing Mao, Guo-Yi Gao, Jun-Feng Feng, Ji-Yao Jiang
Traumatic brain injury (TBI) causes a primary insult and initiates a secondary injury cascade. The mechanisms underlying the secondary injury are multifactorial and may include the aberrant expression of long non-coding RNA (lncRNA) post-TBI. Here, lncRNA microarray analysis was performed to profile the altered lncRNAs in the rat hippocampus after TBI. A total of 271 lncRNA probe sets and 1046 messenger RNA (mRNA) probe sets were differentially expressed after TBI. Gene ontology analysis showed that the main components of the most significantly changed categories were inflammation, DNA transcription, apoptosis, and necroptosis...
March 21, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28129730/functional-outcome-prediction-after-traumatic-spinal-cord-injury-based-on-acute-clinical-factors
#19
Ludovic Kaminski, Virginie Cordemans, Eduard Cernat, Kouamé Innocent M'Bra, Jean-Marc Mac-Thiong
Spinal cord injury (SCI) is a devastating condition that affects patients on both a personal and societal level. The objective of the study is to improve the prediction of long-term functional outcome following SCI based on the acute clinical findings. A total of 76 patients with acute traumatic SCI were prospectively enrolled in a cohort study in a single Level I trauma center. Spinal Cord Independence Measure (SCIM) at 1 year after the trauma was the primary outcome. Potential predictors of functional outcome were recorded during the acute hospitalization: age, sex, level and type of injury, comorbidities, American Spinal Injury Association (ASIA) Impairment Scale (AIS), ASIA Motor Score (AMS), ASIA Light Touch score (LT), ASIA Pin Prick score (PP), Injury Severity Score (ISS), traumatic brain injury, and delay from trauma to surgery...
March 21, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28034346/u-s-estimates-of-pediatric-spinal-cord-injury-implications-for-clinical-care-and-research-planning
#20
Jaspreet K Dhillon, Junxin Shi, Alyssa Janezic, Krista K Wheeler, Henry Xiang, Julie C Leonard
The aim of this study was to provide accurate estimates and characterizations of children with spinal cord injuries (SCIs) and for the subset that are appropriate for inclusion in clinical trials. We identified children <18 years of age with SCI International Classifications of Diseases, Ninth Revision, Clinical Modification Codes (ICD-9-CM codes) from the 2006, 2009, and 2012 Kids' Inpatient Database. We excluded those with late effects, transfers to other hospitals, unspecified injury levels, and hospital stays <48 h...
March 21, 2017: Journal of Neurotrauma
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