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Penetrating brain injury

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https://www.readbyqxmd.com/read/28103389/the-use-of-antioxidants-in-the-treatment-of-traumatic-brain-injury
#1
Whitney Venegoni, Qiuhua Shen, Amanda R Thimmesch, Meredith Bell, John B Hiebert, Janet D Pierce
AIMS: To discuss secondary traumatic brain injury, the mitochondria and the use of antioxidants as a treatment. BACKGROUND: One of the leading causes of death in young adults internationally is traumatic brain injury, affecting individuals in all demographics. Traumatic brain injury is produced by an external blunt force or penetration resulting in alterations in brain function or pathology. Often, with a traumatic brain injury, secondary injury causes additional damage to the brain tissue that can have further impact on recovery and the quality of life...
January 19, 2017: Journal of Advanced Nursing
https://www.readbyqxmd.com/read/28095679/non-naturally-occurring-small-molecule-microtubule-stabilizing-agents-a-potential-tactic-for-cns-directed-therapies
#2
Carlo Ballatore, Kurt R Brunden, John Q Trojanowski, Virginia M-Y Lee, Amos B Smith
Several independent studies indicate that microtubule (MT)-stabilizing agents hold considerable promise as candidate therapeutics for a wide spectrum of conditions of the central nervous system (CNS), from brain tumors to spinal cord injury, as well as a number of neurodegenerative diseases, including Alzheimer's disease, frontotemporal lobar degeneration, Parkinson's disease, and amyotrophic lateral sclerosis. Although the identification and development of candidate compounds for CNS-directed MT-stabilizing therapies has been a challenge in drug discovery for many years, a growing number of molecules have now been identified that exhibit both MT-stabilizing activity and brain penetration...
18, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28091809/a-review-of-penetrating-brain-trauma-epidemiology-pathophysiology-imaging-assessment-complications-and-treatment
#3
REVIEW
Mona T Vakil, Ajay K Singh
Gunshot injuries are the most common cause of penetrating brain injury (PBI) and carry a high morbidity and mortality. The incidence of PBI has increased over the last decade with an estimated 35,000 civilian deaths annually. Patients that survive to reach the hospital require rapid triage and imaging evaluation. CT findings in conjunction with the Glasgow Coma Scale are typically used to determine which patients are surgical candidates. Radiologists should be familiar with the various injury patterns and imaging findings which are poor prognostic indicators, notably brainstem, bilateral hemispheric, multilobar, or transventricular injuries...
January 14, 2017: Emergency Radiology
https://www.readbyqxmd.com/read/28090802/functional-deficits-induced-by-cortical-microinfarcts
#4
Philipp M Summers, David A Hartmann, Edward S Hui, Xingju Nie, Rachael L Deardorff, Emilie T McKinnon, Joseph A Helpern, Jens H Jensen, Andy Y Shih
Clinical studies have revealed a strong link between increased burden of cerebral microinfarcts and risk for cognitive impairment. Since the sum of tissue damage incurred by microinfarcts is a miniscule percentage of total brain volume, we hypothesized that microinfarcts disrupt brain function beyond the injury site visible to histological or radiological examination. We tested this idea using a mouse model of microinfarcts, where single penetrating vessels that supply mouse cortex were occluded by targeted photothrombosis...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28070712/microdialysis-monitoring-in-clinical-traumatic-brain-injury-and-its-role-in-neuroprotective-drug-development
#5
Eric Peter Thelin, Keri L H Carpenter, Peter J Hutchinson, Adel Helmy
Injuries to the central nervous system continue to be vast contributors to morbidity and mortality; specifically, traumatic brain injury (TBI) is the most common cause of death during the first four decades of life. Several modalities are used to monitor patients suffering from TBI in order to prevent detrimental secondary injuries. The microdialysis (MD) technique, introduced during the 1990s, presents the treating physician with a robust monitoring tool for brain chemistry in addition to conventional intracranial pressure monitoring...
January 9, 2017: AAPS Journal
https://www.readbyqxmd.com/read/28068964/management-of-screwdriver-induced-penetrating-brain-injury-a-case-report
#6
Jia Shi, Yumin Mao, Jiachao Cao, Bo Dong
BACKGROUND: Penetrating brain injury (PBI) can be caused by several objects ranging from knives to chopsticks. However, an assault with long and electric screwdriver is a peculiar accident and is relatively rare. Because of its rarity, the treatments of such injury are complex and nonstandardized. CASE PRESENTATION: We presented a case of a 54-year-old female who was stabbed with a screwdriver in her head and accompanied by loss of consciousness for 1 h. Computer tomography (CT) demonstrated that the screwdriver passed through the right zygomatic bone to posterior cranial fossa...
January 10, 2017: BMC Surgery
https://www.readbyqxmd.com/read/27997672/caring-for-our-wounded-warriors-a-qualitative-examination-of-health-related-quality-of-life-in-caregivers-of-individuals-with-military-related-traumatic-brain-injury
#7
Noelle E Carlozzi, Tracey A Brickell, Louis M French, Angelle Sander, Anna L Kratz, David S Tulsky, Nancy D Chiaravalloti, Elizabeth A Hahn, Michael Kallen, Amy M Austin, Jennifer A Miner, Rael T Lange
The purpose of this study was to develop a conceptual framework that captures aspects of health-related quality of life (HRQOL) for caregivers of individuals with military-related traumatic brain injury (TBI). We analyzed qualitative data from nine focus groups composed of caregivers of wounded warriors with a medically documented TBI. Focus group participants were recruited through hospital-based and/or community outreach efforts at the Walter Reed National Military Medical Center, the University of Michigan, and Hearts of Valor support groups (Tennessee and Washington)...
2016: Journal of Rehabilitation Research and Development
https://www.readbyqxmd.com/read/27982326/analysis-of-the-revised-trauma-score-rts-in-200-victims-of-different-trauma-mechanisms
#8
Bruno Durante Alvarez, Danilo Mardegam Razente, Daniel Augusto Mauad Lacerda, Nicole Silveira Lother, Luiz Carlos VON-Bahten, Carla Martinez Menini Stahlschmidt
Objective: to analyze the epidemiological profile and mortality associated with the Revised Trauma Score (RTS) in trauma victims treated at a university hospital. Methods: we conducted a descriptive, cross-sectional study of trauma protocols (prospectively collected) from December 2013 to February 2014, including trauma victims admitted in the emergency room of the Cajuru University Hospital. We set up three groups: (G1) penetrating trauma to the abdomen and chest, (G2) blunt trauma to the abdomen and chest, and (G3) traumatic brain injury...
September 2016: Revista do Colégio Brasileiro de Cirurgiões
https://www.readbyqxmd.com/read/27965088/lanthionine-ketimine-ester-promotes-locomotor-recovery-after-spinal-cord-injury-by-reducing-neuroinflammation-and-promoting-axon-growth
#9
Ken Kotaka, Jun Nagai, Kenneth Hensley, Toshio Ohshima
The mammalian central nervous system (CNS) has limited regenerative ability after injury, largely due to scar formation and axonal growth inhibitors. Experimental suppression of neuroinflammation encourages recovery from spinal cord injury (SCI), yet practical means for pharmacologically treating SCI have remained elusive. Lanthionine ketimine (LK) is a natural brain sulfur amino acid metabolite with demonstrated anti-neuroinflammatory and neurotrophic activities. LK and its synthetic brain-penetrating ethyl ester (LKE) promote growth factor-dependent neurite extension in cultured cell and suppress microglial activation in animal models of neurodegeneration...
December 11, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27938877/coagulopathy-and-transfusion-requirements-in-war-related-penetrating-traumatic-brain-injury-a-single-centre-study-in-a-french-role-3-medical-treatment-facility-in-afghanistan
#10
J Bordes, C Joubert, P Esnault, A Montcriol, C Nguyen, E Meaudre, R Dulou, A Dagain
INTRODUCTION: Traumatic brain injury associated coagulopathy is frequent, either in isolated traumatic brain injury in civilian practice and in combat traumatic brain injury. In war zone, it is a matter of concern because head and neck are the second most frequent site of wartime casualty burden. Data focusing on transfusion requirements in patients with war related TBI coagulopathy are limited. MATERIALS AND METHODS: A descriptive analysis was conducted of 77 penetrating traumatic brain injuries referred to a French role 3 medical treatment facility in Kabul, Afghanistan, deployed on the Kabul International Airport (KaIA), over a 30 months period...
November 21, 2016: Injury
https://www.readbyqxmd.com/read/27906870/effectiveness-of-low-molecular-weight-heparin-versus-unfractionated-heparin-to-prevent-pulmonary-embolism-following-major-trauma-a-propensity-matched-analysis
#11
James P Byrne, William Geerts, Stephanie A Mason, David Gomez, Christopher Hoeft, Ryan Murphy, Melanie Neal, Avery B Nathens
BACKGROUND: Pulmonary embolism (PE) is a leading cause of delayed mortality in patients with severe injury. While low-molecular-weight heparin (LMWH) is often favored over unfractionated heparin (UH) for thromboprophylaxis, evidence is lacking to demonstrate an effect on the occurrence of PE. This study compared the effectiveness of LMWH versus UH to prevent PE in patients following major trauma. METHODS: Data for adults with severe injury who received thromboprophylaxis with LMWH or UH were derived from the American College of Surgeons Trauma Quality Improvement Program (2012-2015)...
February 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/27903839/the-effect-of-brain-tomography-findings-on-mortality-in-sniper-shot-head-injuries
#12
Çağdaş Can, M Bolatkale, A Sarıhan, Y Savran, A Ç Acara, M Bulut
OBJECTIVES: Penetrating gunshot head injuries have a poor prognosis and require prompt care. Brain CT is a routine component of the standard evaluation of head wounds and suspected brain injury. We aimed to investigate the effect of brain CT findings on mortality in gunshot head injury patients who were admitted to our emergency department (ED) from the Syrian Civil War. METHODS: The study group comprised patients who were admitted to the ED with gunshot brain injury...
November 30, 2016: Journal of the Royal Army Medical Corps
https://www.readbyqxmd.com/read/27881496/penetrating-intracranial-injury-caused-by-an-unusual-home-made-iron-pyrotechnic-device
#13
Slobodan Nikolić, Vladimir Živković
Herein, a potentially dangerous explosive home-made device used for fun and entertainment is described. It consists of two iron parts connected with a U-shaped thick wire: a wedge about 8 cm in length, which fits into a hollow cylinder, filled with a small amount of nitre (the mineral form of potassium nitrate). Striking the device onto a hard surface creates a spark inside it, which burns the nitre, producing a very loud bang. We are in possession of such device in our forensic museum collection. We present a case from 1937 related to the use of this explosive home-made device...
November 23, 2016: Medicine, Science, and the Law
https://www.readbyqxmd.com/read/27872763/effects-of-microtubule-stabilization-by-epothilone-b-depend-on-the-type-and-age-of-neurons
#14
Eun-Hae Jang, Aeri Sim, Sun-Kyoung Im, Eun-Mi Hur
Several studies have demonstrated the therapeutic potential of applying microtubule- (MT-) stabilizing agents (MSAs) that cross the blood-brain barrier to promote axon regeneration and prevent axonal dystrophy in rodent models of spinal cord injury and neurodegenerative diseases. Paradoxically, administration of MSAs, which have been widely prescribed to treat malignancies, is well known to cause debilitating peripheral neuropathy and axon degeneration. Despite the growing interest of applying MSAs to treat the injured or degenerating central nervous system (CNS), consequences of MSA exposure to neurons in the central and peripheral nervous system (PNS) have not been thoroughly investigated...
2016: Neural Plasticity
https://www.readbyqxmd.com/read/27866326/the-neuroprotective-peptide-poly-arginine-12-r12-reduces-cell-surface-levels-of-nmda-nr2b-receptor-subunit-in-cortical-neurons-investigation-into-the-involvement-of-endocytic-mechanisms
#15
Gabriella MacDougall, Ryan S Anderton, Adam B Edwards, Neville W Knuckey, Bruno P Meloni
We have previously reported that cationic poly-arginine and arginine-rich cell-penetrating peptides display high-level neuroprotection and reduce calcium influx following in vitro excitotoxicity, as well as reduce brain injury in animal stroke models. Using the neuroprotective peptides poly-arginine R12 (R12) and the NR2B9c peptide fused to the arginine-rich carrier peptide TAT (TAT-NR2B9c; also known as NA-1), we investigated the mechanisms whereby poly-arginine and arginine-rich peptides reduce glutamate-induced excitotoxic calcium influx...
November 20, 2016: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/27853132/traumatic-brain-injuries
#16
Kaj Blennow, David L Brody, Patrick M Kochanek, Harvey Levin, Ann McKee, Gerard M Ribbers, Kristine Yaffe, Henrik Zetterberg
Traumatic brain injuries (TBIs) are clinically grouped by severity: mild, moderate and severe. Mild TBI (the least severe form) is synonymous with concussion and is typically caused by blunt non-penetrating head trauma. The trauma causes stretching and tearing of axons, which leads to diffuse axonal injury - the best-studied pathogenetic mechanism of this disorder. However, mild TBI is defined on clinical grounds and no well-validated imaging or fluid biomarkers to determine the presence of neuronal damage in patients with mild TBI is available...
November 17, 2016: Nature Reviews. Disease Primers
https://www.readbyqxmd.com/read/27836236/optimising-ballistic-facial-coverage-from-military-fragmenting-munitions-a-consensus-statement
#17
J Breeze, D C Tong, D Powers, N A Martin, A M Monaghan, D Evriviades, J Combes, G Lawton, C Taylor, A Kay, J Baden, B Reed, N MacKenzie, A J Gibbons, S Heppell, R F Rickard
VIRTUS is the first United Kingdom (UK) military personal armour system to provide components that are capable of protecting the whole face from low velocity ballistic projectiles. Protection is modular, using a helmet worn with ballistic eyewear, a visor, and a mandibular guard. When all four components are worn together the face is completely covered, but the heat, discomfort, and weight may not be optimal in all types of combat. We organized a Delphi consensus group analysis with 29 military consultant surgeons from the UK, United States, Canada, Australia, and New Zealand to identify a potential hierarchy of functional facial units in order of importance that require protection...
November 8, 2016: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/27829572/magnesium-in-the-cns-recent-advances-and-developments
#18
Robert Vink
A potential neuroprotective role for magnesium in neurological disease has been appreciated for almost three decades, yet translation to the clinical arena has proven elusive. Accumulating experimental evidence continues to suggest that magnesium plays a critical role in a number of neurological conditions including headache, stress, alcohol/drug intoxication, acute brain injury, seizures, Parkinson's disease and Alzheimer's disease. Simple administration of a magnesium salt in these conditions has not always been therapeutically successful, with a number of studies showing poor penetration of serum magnesium across the blood brain barrier...
March 1, 2016: Magnesium Research: Official Organ of the International Society for the Development of Research on Magnesium
https://www.readbyqxmd.com/read/27826423/hydrogen-therapy-from-mechanism-to-cerebral-diseases
#19
REVIEW
Cheng-Lin Liu, Kai Zhang, Gang Chen
The medicinal value of hydrogen (H2) was ignored prior to research illustrating that inhalation of 2% H2 can significantly decrease the damage of cerebral ischemia/reperfusion caused by oxidative stress via selective elimination of hydroxyl freebase (OH) and peroxynitrite anion (ONOO-). Subsequently, there have been numerous experiments on H2. Most research and trials involving the mechanisms underlying H2 therapy show the effects of antioxygenation, anti-inflammation, and anti-apoptosis. Among quantities of diseases related with H2 therapy, the brain disease is a hotspot as brain tissue and cell damage are easier to be induced by oxidative stress and other stimulations...
March 2016: Medical Gas Research
https://www.readbyqxmd.com/read/27826038/expression-of-glial-cbp-in-steroid-mediated-neuroprotection-in-male-and-female-zebra-finches
#20
Molly Klores, John T Moon, Kelli A Duncan
Under neurodegenerative conditions, reactive astrocytes upregulate both aromatase (estrogen synthase) as well as estrogen and androgen receptors. This increased steroidogenic signal promotes neuroprotection and repair by promoting neurogenesis and decreasing cell death, but also by modulating the release of inflammatory molecules. Thus, endocrine - immune cross-talk is an essential component of estrogen mediated neuroprotection following brain injury. However, the exact mechanisms underlying this cross-talk remains unknown...
January 2017: Journal of Chemical Neuroanatomy
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