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Adult traumatic brain injury

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https://www.readbyqxmd.com/read/28342966/time-courses-of-post-injury-mitochondrial-oxidative-damage-and-respiratory-dysfunction-and-neuronal-cytoskeletal-degradation-in-a-rat-model-of-focal-traumatic-brain-injury
#1
Rachel L Hill, Indrapal N Singh, Juan A Wang, Edward D Hall
Traumatic brain injury (TBI) results in rapid reactive oxygen species (ROS) production and oxidative damage to essential brain cellular components leading to neuronal dysfunction and cell death. It is increasingly appreciated that a major player in TBI-induced oxidative damage is the reactive nitrogen species (RNS) peroxynitrite (PN) which is produced in large part in injured brain mitochondria. Once formed, PN decomposes into highly reactive free radicals that trigger membrane lipid peroxidation (LP) of polyunsaturated fatty acids (e...
March 23, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28340321/exploring-the-relationship-between-cognition-and-functional-verbal-reasoning-in-adults-with-severe-traumatic-brain-injury-at-six-months-post-injury
#2
Petra Avramović, Belinda Kenny, Emma Power, Skye McDonald, Robyn Tate, Louise Hunt, Sheila MacDonald, Rob Heard, Leanne Togher
OBJECTIVE(S): This study aims to determine the association between cognitive impairment and functional verbal reasoning in adults with severe traumatic brain injury (TBI), at six months post-injury. METHOD(S): 38 participants with severe TBI were assessed using the four tasks on the Functional Assessment of Verbal Reasoning and Executive Strategies (FAVRES) [1] and a battery of neuropsychological tests at 6 months post injury in a cross-sectional observational study...
March 24, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28338437/contralateral-peripheral-neurotization-for-a-hemiplegic-hindlimb-after-central-neurological-injury
#3
Mou-Xiong Zheng, Xu-Yun Hua, Su Jiang, Yan-Qun Qiu, Yun-Dong Shen, Wen-Dong Xu
OBJECTIVE Contralateral peripheral neurotization surgery has been successfully applied to rescue motor function of the hemiplegic upper extremity in patients with central neurological injury (CNI). It may contribute to strengthened neural pathways between the contralesional cortex and paretic limbs. However, the effect of this surgery in the lower extremities remains unknown. In the present study the authors explored the effectiveness and safety of contralateral peripheral neurotization in treating a hemiplegic lower extremity following CNI in adult rats...
March 24, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28337734/diffusion-tensor-imaging-dti-findings-in-adult-civilian-military-and-sport-related-mild-traumatic-brain-injury-mtbi-a-systematic-critical-review
#4
Breton Michael Asken, Steven T DeKosky, James R Clugston, Michael S Jaffee, Russell M Bauer
This review seeks to summarize diffusion tensor imaging (DTI) studies that have evaluated structural changes attributed to the mechanisms of mild traumatic brain injury (mTBI) in adult civilian, military, and athlete populations. Articles from 2002 to 2016 were retrieved from PubMed/MEDLINE, EBSCOhost, and Google Scholar, using a Boolean search string containing the following terms: "diffusion tensor imaging", "diffusion imaging", "DTI", "white matter", "concussion", "mild traumatic brain injury", "mTBI", "traumatic brain injury", and "TBI"...
March 24, 2017: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/28337475/age-at-injury-is-associated-with-the-long-term-cognitive-outcome-of-traumatic-brain-injuries
#5
Wei Li, Shannon L Risacher, Thomas W McAllister, Andrew J Saykin
INTRODUCTION: The association between age at injury (AAI) and long-term cognitive outcome of traumatic brain injuries (TBI) is debatable. METHODS: Eligible participants with a history of TBI from Alzheimer's Disease Neuroimaging Initiative were divided into a childhood TBI (cTBI) group (the AAI ≤ 21 years old) and an adult TBI (aTBI) group (the AAI > 21 years old). RESULTS: The cTBI group has a higher Everyday Cognition total score than the aTBI group...
2017: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/28329183/remote-traumatic-brain-injury-is-associated-with-motor-dysfunction-in-older-military-veterans
#6
Raquel C Gardner, Carrie B Peltz, Kimbra Kenney, Kenneth E Covinsky, Ramon Diaz-Arrastia, Kristine Yaffe
Background: Traumatic brain injury (TBI) has been identified as a risk factor for Parkinson's disease (PD). Motor dysfunction among TBI-exposed elders without PD has not been well characterized. We sought to determine whether remote TBI is a risk factor for motor dysfunction on exam and functionally relevant motor dysfunction in day-to-day life among independently living elders without PD. Methods: This is a cross-sectional cohort study of independently living retired military veterans aged 50 or older with (n = 78) and without (n = 85) prior TBI-all without diagnosed PD...
January 20, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/28326858/lifetime-prevalence-of-traumatic-brain-injury-in-a-demographically-diverse-community-sample
#7
Jason Kisser, Shari R Waldstein, Michele K Evans, Alan B Zonderman
BACKGROUND: Although incidence rates are well documented for traumatic brain injury, lifetime prevalence in a demographically diverse sample is unknown. We examined the prevalence of self-reported traumatic brain injury (TBI) in a demographically diverse sample. METHODS: History of TBI was examined in 2881 African-Americans and Whites in the Healthy Aging in Neighborhoods of Diversity across the Life Span (HANDLS) study-a community-based, epidemiological investigation of urban-dwelling adults...
March 22, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28326852/sleep-outcomes-following-sleep-hygiene-related-interventions-for-individuals-with-traumatic-brain-injury-a-systematic-review
#8
Stefan Bogdanov, Sharon Naismith, Suncica Lah
BACKGROUND: Sleep disturbance is commonly reported following traumatic brain injury (TBI) and can adversely impact health and wellbeing and interfere with the rehabilitation process. As such, effective treatment of sleep disturbance is critical for overall recovery. Sleep hygiene, which is non-invasive, low cost, and low risk, could serve as a suitable first line of treatment for individuals experiencing sleep disturbance post-TBI. OBJECTIVE: To assess the efficacy of sleep hygiene on sleep outcomes post-TBI...
March 22, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28325648/role-of-bromocriptine-in-multi-spectral-manifestations-of-traumatic-brain-injury
#9
Sunil Munakomi, Binod Bhattarai, Bijoy Mohan Kumar
PURPOSE: Despite the prevalence and cost of traumatic brain injury related disabilities, there is paucity in the literature on modern approaches to pharmacotherapy. Medications may promote recovery by enhancing some neurological functions without impacting others. Herein we discussed the role of bromocriptine in neurorehabilitation for patients with traumatic brain injury. METHODS: A cohort comprising of 36 selective nonsurgical cases of traumatic brain injury in minimally conscious state were enrolled in the study...
February 21, 2017: Chinese Journal of Traumatology, Zhonghua Chuang Shang za Zhi
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
#10
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/28322535/neuropsychological-rehabilitation-and-psychotherapy-of-adult-traumatic-brain-injury-patients-with-depression-a-systematic-review-and-meta-analysis
#11
Zeng-Qiang Liu, Xue Zeng, Chen-Yang Duan
INTRODUCTION: There is still insufficient appreciation whether neuropsychological rehabilitation and psychotherapy are effective in attenuating depression following traumatic brain injury (TBI). This knowledge gap was addressed in the present systematic review and meta- analysis of the literature. EVIDENCE ACQUISITION: We conducted electronic database (Medline, PsychINFO, Scopus) searches (time frame: January 1, 2005 - December 31, 2015) for clinical studies that had tested neuropsychological rehabilitation and psychotherapy in adult TBI survivors with depression...
March 21, 2017: Journal of Neurosurgical Sciences
https://www.readbyqxmd.com/read/28320134/post-hemorrhagic-hydrocephalus-recent-advances-and-new-therapeutic-insights
#12
REVIEW
Qianwei Chen, Zhou Feng, Qiang Tan, Jing Guo, Jun Tang, Liang Tan, Hua Feng, Zhi Chen
Post-hemorrhagic hydrocephalus (PHH), also referred to as progressive ventricular dilatation, is caused by disturbances in cerebrospinal fluid (CSF) flow or absorption following hemorrhage in the brain. As one of the most serious complications of neonatal/adult intraventricular hemorrhage (IVH), subarachnoid hemorrhage (SAH), and traumatic brain injury (TBI), PHH is associated with increased morbidity and disability of these events. Common sequelae of PHH include neurocognitive impairment, motor dysfunction, and growth impairment...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28319470/symptomatic-acute-on-chronic-subdural-hematoma-a-clinicopathological-study
#13
Rudy J Castellani, Gruschenka Mojica-Sanchez, Gary Schwartzbauer, David S Hersh
The pathophysiology of acute-on-chronic subdural hematoma (ACSDH) is complex and incompletely understood. Evidence to date indicates that the overall process is initiated by rotational force with movement of the brain inside the skull, which exerts tensile strain and rupture of bridging veins, leading in turn to acute hemorrhage in the subdural potential space. This is followed by the proliferation of mesenchymal elements with angiogenesis and inflammation, which in turn becomes a substrate for repeated hemorrhage and expansion of the lesion...
March 18, 2017: American Journal of Forensic Medicine and Pathology
https://www.readbyqxmd.com/read/28314375/inter-subject-variability-of-axonal-injury-in-diffuse-traumatic-brain-injury
#14
Jeffrey B Ware, Tessa Hart, John Whyte, Amanda Rabinowitz, John A Detre, Junghoon Kim
Traumatic brain injury (TBI) is a leading cause of cognitive morbidity worldwide, for which reliable biomarkers are needed. Diffusion tensor imaging (DTI) is a promising biomarker of traumatic axonal injury (TAI), however existing studies have been limited by a primary reliance upon group-level analytic methods not well-suited to account for inter-subject variability. In this study, 42 adults with TBI of at least moderate severity were examined 3 months following injury and compared to 35 healthy controls. DTI data was used for both traditional group-level comparison as well as subject-specific analysis using the distribution-corrected Z-score (DisCo-Z) approach...
March 17, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28301451/traumatic-brain-injury-related-emergency-department-visits-hospitalizations-and-deaths-united-states-2007-and-2013
#15
Christopher A Taylor, Jeneita M Bell, Matthew J Breiding, Likang Xu
PROBLEM/CONDITION: Traumatic brain injury (TBI) has short- and long-term adverse clinical outcomes, including death and disability. TBI can be caused by a number of principal mechanisms, including motor-vehicle crashes, falls, and assaults. This report describes the estimated incidence of TBI-related emergency department (ED) visits, hospitalizations, and deaths during 2013 and makes comparisons to similar estimates from 2007. REPORTING PERIOD: 2007 and 2013. DESCRIPTION OF SYSTEM: State-based administrative health care data were used to calculate estimates of TBI-related ED visits and hospitalizations by principal mechanism of injury, age group, sex, and injury intent...
March 17, 2017: MMWR. Surveillance Summaries: Morbidity and Mortality Weekly Report. Surveillance Summaries
https://www.readbyqxmd.com/read/28294709/cross-lagged-panel-analysis-of-depression-and-behavioral-dysfunction-in-the-first-year-after-moderate-to-severe-traumatic-brain-injury
#16
Shannon B Juengst, John M Myrga, Jesse R Fann, Amy K Wagner
Timely treatment of depression and behavioral dysfunction after moderate-to-severe traumatic brain injury (TBI) could improve health, function, and quality of life. The authors hypothesized that 6-month depression would be the stronger contributor to later depression and behavioral dysfunction in a sample of 88 adults with moderate-to-severe TBI. A structural equation modeling cross-lagged panel analysis, adjusting for all 6-month predictors, revealed that 6-month depression had a stronger relationship to 12-month depression (βstand=0...
March 15, 2017: Journal of Neuropsychiatry and Clinical Neurosciences
https://www.readbyqxmd.com/read/28292310/microglial-derived-microparticles-mediate-neuroinflammation-after-traumatic-brain-injury
#17
Alok Kumar, Bogdan A Stoica, David J Loane, Ming Yang, Gelareh Abulwerdi, Niaz Khan, Asit Kumar, Stephen R Thom, Alan I Faden
BACKGROUND: Local and systemic inflammatory responses are initiated early after traumatic brain injury (TBI), and may play a key role in the secondary injury processes resulting in neuronal loss and neurological deficits. However, the mechanisms responsible for the rapid expansion of neuroinflammation and its long-term progression have yet to be elucidated. Here, we investigate the role of microparticles (MP), a member of the extracellular vesicle family, in the exchange of pro-inflammatory molecules between brain immune cells, as well as their transfer to the systemic circulation, as key pathways of inflammation propagation following brain trauma...
March 15, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28288867/moderate-traumatic-brain-injury-increases-the-vulnerability-to-neurotoxicity-induced-by-systemic-administration-of-6-hydroxydopamine-in-mice
#18
Paulo Alexandre de Oliveira, Juliana Ben, Filipe Carvalho Matheus, Marcelo Liborio Schwarzbold, Eduardo Luiz Gasnhar Moreira, Daniel Rial, Roger Walz, Rui Daniel Prediger
Moderate traumatic brain injury (TBI) might increase the vulnerability to neuronal neurodegeneration, but the basis of such selective neuronal susceptibility has remained elusive. In keeping with the disruption of the blood-brain barrier (BBB) caused by TBI, changes in BBB permeability following brain injury could facilitate the access of xenobiotics into the brain. To test this hypothesis, here we evaluated whether TBI would increase the susceptibility of nigrostriatal dopaminergic fibers to the systemic administration of 6-hydroxydopamine (6-OHDA), a classic neurotoxin used to trigger a PD-like phenotype in mice, but that in normal conditions is unable to cross the BBB...
March 10, 2017: Brain Research
https://www.readbyqxmd.com/read/28288551/repetitive-closed-head-impact-model-of-engineered-rotational-acceleration-induces-long-term-cognitive-impairments-with-persistent-astrogliosis-and-microgliosis-in-mice
#19
Huazhen Chen, Abhishek Desai, Hee-Yong Kim
Repeated mild traumatic brain injury (rmTBI) has been identified as a high-risk factor for dementia at a later stage by epidemiology. The animal models to replicate complex features of human rmTBI and/or to evaluate long-term effects on brain function have not been established. In this study, we used a novel Closed-Head Impact Model of Engineered Rotational Acceleration (CHIMERA) to investigate long-term neuropathological and cognitive functional consequences of rmTBI. Adult C57BL/6 male mice were subjected to CHIMERA for three consecutive days 24 h apart...
March 13, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28278592/exploring-associations-between-self-regulatory-mechanisms-and-neuropsychological-functioning-and-driver-behaviour-after-brain-injury
#20
Per-Ola Rike, Hans J Johansen, Pål Ulleberg, Anna Lundqvist, Anne-Kristine Schanke
The objective of this prospective one-year follow-up study was to explore the associations between self-regulatory mechanisms and neuropsychological tests as well as baseline and follow-up ratings of driver behaviour. The participants were a cohort of subjects with stroke and traumatic brain injury (TBI) who were found fit to drive after a multi-disciplinary driver assessment (baseline). Baseline measures included neuropsychological tests and ratings of self-regulatory mechanisms, i.e., executive functions (Behavior Rating Inventory of Executive Function-Adult Version; BRIEF-A) and impulsive personality traits (UPPS Impulsive Behavior Scale)...
April 11, 2016: Neuropsychological Rehabilitation
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