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https://www.readbyqxmd.com/read/28797606/plasma-creatine-kinase-b-correlates-with-injury-severity-and-symptoms-in-professional-boxers
#1
Joseph Kilianski, Sophie Peeters, Jeff Debad, Joseph Mohmed, Steven E Wolf, Joseph P Minei, Ramon Diaz-Arrastia, Joshua W Gatson
INTRODUCTION: Each year in the United States, approximately 1.7 million people sustain a traumatic brain injury (TBI). Of these TBI events, about 75 percent are characterized as being mild brain injuries. Immediately following TBI, a secondary brain damage persists for hours, days, and even months. Previously, detection of neuronal and glial biomarkers have proven to be useful to predict neurological outcomes. Here, we hypothesized that creatine kinase, brain (CKBB) is a sensitive biomarker for acute secondary brain injury in professional boxers...
August 7, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28780369/new-method-to-induce-mild-traumatic-brain-injury-in-rodents-produces-differential-outcomes-in-female-and-male-sprague-dawley-rats
#2
Peter Wirth, Waylin Yu, Amanda L Kimball, Jennifer Liao, Paul Berkner, Melissa J Glenn
BACKGROUND: Mild traumatic brain injuries (mTBI) are an increasing health concern due to persistent behavioral and neurological effects. To better understand these effects, researchers frequently rely on animal injury models. Existing models, however, may not adequately reproduce the mechanism of injury as it occurs in humans. NEW METHOD: Our new model for inducing mTBI in rodents entails acceleration of the animal toward a stationary impact zone to produce rapid rotational movement of the head...
August 2, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/28774762/epidemiology-of-mild-traumatic-brain-injury-with-intracranial-hemorrhage-focusing-predictive-models-for-neurosurgical-intervention
#3
Alessandro Orlando, A Stewart Levy, Matthew M Carrick, Allen Tanner, Charles W Mains, David Bar-Or
OBJECTIVE: To adumbrate differences in neurosurgical intervention (NI) rates between intracranial hemorrhage (ICH) types in mild traumatic brain injuries (mTBIs), and help identify which ICH types are most likely to benefit from the creation of predictive models for NI. METHODS: This was a multi-center retrospective study of adult patients over three years at four Trauma Centers in the USA. Patients were included if they presented with a mTBI (GCS 13-15) and a head CT positive for ICH...
July 31, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28770112/anodal-transcranial-direct-current-stimulation-provokes-neuroplasticity-in-repetitive-mild-traumatic-brain-injury-in-rats
#4
Ho Jeong Kim, Soo Jeong Han
Repetitive mild traumatic brain injury (rmTBI) provokes behavioral and cognitive changes. But the study about electrophysiologic findings and managements of rmTBI is limited. In this study, we investigate the effects of anodal transcranial direct current stimulation (tDCS) on rmTBI. Thirty-one Sprague Dawley rats were divided into the following groups: sham, rmTBI, and rmTBI treated by tDCS. Animals received closed head mTBI three consecutive times a day. Anodal tDCS was applied to the left motor cortex. We evaluated the motor-evoked potential (MEP) and the somatosensory-evoked potential (SEP)...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28761433/mild-closed-head-traumatic-brain-injury-induced-changes-in-monoamine-neurotransmitters-in-the-trigeminal-subnuclei-of-a-rat-model-mechanisms-underlying-orofacial-allodynias-and-headache
#5
Golam Mustafa, Jiamei Hou, Rachel Nelson, Shigeharu Tsuda, Mansura Jahan, Naweed S Mohammad, Joseph V Watts, Floyd J Thompson, Prodip Bose
Our recent findings have demonstrated that rodent models of closed head traumatic brain injury exhibit comprehensive evidence of progressive and enduring orofacial allodynias, a hypersensitive pain response induced by non-painful stimulation. These allodynias, tested using thermal hyperalgesia, correlated with changes in several known pain signaling receptors and molecules along the trigeminal pain pathway, especially in the trigeminal nucleus caudalis. This study focused to extend our previous work to investigate the changes in monoamine neurotransmitter immunoreactivity changes in spinal trigeminal nucleus oralis, pars interpolaris and nucleus tractus solitaries following mild to moderate closed head traumatic brain injury, which are related to tactile allodynia, touch-pressure sensitivity, and visceral pain...
June 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/28756201/multiple-mild-traumatic-brain-injury-in-the-rat-produces-persistent-pathological-alterations-in-the-brain
#6
Diane M Brooks, Sarjubhai A Patel, Eric D Wohlgehagen, Erin O Semmens, Alan Pearce, Edmond A Sorich, Thomas F Rau
Multiple mild traumatic brain injury (mmTBI), in certain cases, produces persistent symptoms. However, the molecular mechanisms underlying these symptoms remain unclear. Here, we demonstrate extended pathological changes in the rat brain following mmTBI. Using the lateral fluid percussion (LFP) technique we exposed adult male Wistar rats to a mild TBI (mTBI) once a week for four weeks and compared them to surgical shams. At 90days following the last TBI or sham procedure the animals were cognitively tested in the Morris Water Maze (MWM), euthanized, and the brains removed for immunohistochemistry...
July 27, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28753688/the-role-of-neck-muscle-activities-on-the-risk-of-mild-traumatic-brain-injury-in-american-football
#7
Xin Jin, Zhaoying Feng, Valerie H Mika, Haiyan Li, David Viano, King H Yang
Concussion, or mild TBI (mTBI), is frequently associated with sports activities. It has generally been accepted that neck strengthening exercises are effective as a preventive strategy for reducing sports-related concussion risks. However, the interpretation of the link between neck strength and concussion risks remains unclear. In this study, a typical helmeted head-to-head impact in American football was simulated using the head and neck complex finite element model. The impact scenario selected was previously reported in lab-controlled incident reconstructions from high-speed NFL video footages using two head-neck complexes taken from Hybrid III dummies...
July 28, 2017: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/28748496/huperzine-a-alleviates-neuroinflammation-oxidative-stress-and-improves-cognitive-function-after-repetitive-traumatic-brain-injury
#8
Zhengrong Mei, Peiying Zheng, Xiangping Tan, Ying Wang, Bing Situ
Traumatic brain injury (TBI) may trigger secondary injury cascades including endoplasmic reticulum stress, oxidative stress, and neuroinflammation. Unfortunately, there are no effective treatments targeting either primary or secondary injuries that result in long-term detrimental consequences. Huperzine A (HupA) is a potent acetylcholinesterase inhibitor (AChEI) that has been used treatment of Alzheimer's disease (AD). This study aimed to explore the neuroprotective effects of HupA in TBI and its possible mechanisms...
July 26, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28742608/epidemiology-of-injuries-in-women-s-lacrosse-implications-for-sport-level-and-sex-specific-injury-prevention-strategies
#9
Kim D Barber Foss, Ed Le Cara, Teri McCambridge, Richard Y Hinton, Adam Kushner, Gregory D Myer
OBJECTIVE: By the end of 2013, the United States had an estimated 278 000 female lacrosse players, with half of those participating at the youth level. The effects of the sport's rapid growth on injury rates have yet to be determined. The purpose of this clinical review is to synthesize the available published data on injuries that have occurred in the sport of women's lacrosse. Of particular interest was the risk of injury based on the level of play and position. DATA SOURCES: A comprehensive literature search was performed in PubMed, High Wire Press, SPORTDiscus, Google Scholar, and Ovid using the keywords "Lacrosse Injuries," "Epidemiology Lacrosse Injuries," "Lacrosse Injury," "Lacrosse," and "Injury...
July 21, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28726717/mini-review-of-controlled-cortical-impact-a-well-suited-device-for-concussion-research
#10
REVIEW
Nicole Osier, C Edward Dixon
Mild traumatic brain injury (mTBI) is increasingly recognized as a significant public health problem which warrants additional research. Part of the effort to understand mTBI and concussion includes modeling in animals. Controlled cortical impact (CCI) is a commonly employed and well-characterized model of experimental TBI that has been utilized for three decades. Today, several commercially available pneumatic- and electromagnetic-CCI devices exist as do a variety of standard and custom injury induction tips...
July 20, 2017: Brain Sciences
https://www.readbyqxmd.com/read/28718250/qing-qi-rickshaw-a-boon-or-bane-for-public-transportation-a-study-of-road-traffic-injury-patterns-involving-qing-qi-rickshaws-in-karachi-pakistan
#11
Muhammad Muzzammil, Muhammad Saeed Minhas, Jahanzeb Effendi, Syed Jahanzeb, Ayesha Mughal, Abdul Qadir
BACKGROUND: The three-wheeler Qing-qi and Compressed Natural Gas (CNG) auto-rickshaws were introduced in Karachi to meet the transportation demand of the growing population. These vehicles have directly or indirectly been implicated in a number of road traffic violations as well as road accidents. This study aims to describe the crash characteristics and injury patterns for Qing-qi rickshaw occupants and other road users hit by Qing-qi rickshaw in Karachi, Pakistan. METHODS: An Observational/ Descriptive study was conducted at Accident & Emergency and Orthopaedic Surgery Department, Jinnah Post Graduate Medical Centre, Karachi Pakistan from July 2014 to June 2015...
April 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/28715400/a-novel-method-to-model-chronic-traumatic-encephalopathy-in-drosophila
#12
Mingkuan Sun, Liam L Chen
Chronic Traumatic Encephalopathy (CTE) is an established neurodegenerative disease that is closely associated with exposure to repetitive mild Traumatic Brain Injury (mTBI). The mechanisms responsible for its complex pathological changes remain largely elusive, despite a recent consensus to define the neuropathological criteria. Here, we describe a novel method to develop a model of CTE in Drosophila melanogaster (Drosophila ) in an attempt to identify the key genes and pathways that lead to the characteristic hyperphosphorylated tau accumulation and neuronal death in the brain...
July 4, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28701108/repetitive-mild-closed-head-injury-alters-protein-expression-and-dendritic-complexity-in-a-mouse-model
#13
Jessica Nicole Saykally, Whitney A Ratliff, Kristen Keeley, Chaim G Pick, Ronald F Mervis, Bruce A Citron
World-wide head injuries are a growing problem. In the United States alone, 1.7 million people suffer a head injury each year. While most of these injuries are mild, head injury sufferers still sustain symptoms that can have major medical and economical impacts. Moreover, repetitive mild head injuries, like those observed in active military personnel and athletes, have demonstrated a more severe and long-term set of consequences. In an effort to better understand the delayed pathological changes following multiple mild head injuries, we used a mouse model of mild closed head injury (with no motor deficits observed by rotarod testing) and measured dendritic complexity at 30 days after injury and potentially related factors up to 60 days post injury...
July 12, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28698487/multiple-mild-traumatic-brain-injuries-are-associated-with-increased-rates-of-health-symptoms-and-gulf-war-illness-in-a-cohort-of-1990-1991-gulf-war-veterans
#14
Megan K Yee, Patricia A Janulewicz, Daniel R Seichepine, Kimberly A Sullivan, Susan P Proctor, Maxine H Krengel
Recent research demonstrated a relation between traumatic brain injury (TBI), health symptoms and diagnosis of Gulf War Illness (GWI) in Gulf War Veterans, but no study has examined the impact of multiple mild TBIs (mTBIs). A total of 229 male Gulf War Veterans from the Ft Devens Cohort were categorized by a number of mTBIs reported. One-way ANOVA and chi-square test of independence were used to test for differences in total reported health symptoms and diagnosis of chronic multisymptom illness (CMI) or Kansas GWI criteria, two of the most common case definitions of GWI...
July 9, 2017: Brain Sciences
https://www.readbyqxmd.com/read/28692515/criteria-for-performing-cranial-computed-tomography-for-chinese-patients-with-mild-traumatic-brain-injury-canadian-computed-tomography-head-rule-or-new-orleans-criteria
#15
Xiao-Feng Yang, Yuan-Yuan Meng, Liang Wen, Hao Wang
Computed tomography (CT) provides the primary diagnostic evidence for traumatic brain injury (TBI), but few positive traumatic findings are discovered in patients with mild TBI. In China, there are no existing criteria for selecting patients with mild TBI to undergo CT, and almost all of these patients undergo cranial CT in the emergency department. This retrospective study was performed to evaluate the necessity of cranial CT among patients with mild TBI, as well as the feasibility of 2 popular criteria (Canadian CT head rule [CCHR] and New Orleans Criteria [NOC]) in China...
July 7, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28689194/risk-factors-and-outcomes-associated-with-post-traumatic-headache-after-mild-traumatic-brain-injury
#16
Tansel Yilmaz, Gerwin Roks, Myrthe de Koning, Myrthe Scheenen, Harm van der Horn, Gerben Plas, Gerard Hageman, Guus Schoonman, Jacoba Spikman, Joukje van der Naalt
OBJECTIVES: To determine the prevalence and potential risk factors of acute and chronic post-traumatic headache (PTH) in patients with mild to moderate traumatic brain injury (TBI) in a prospective longitudinal observational multicentre study. Acute PTH (aPTH) is defined by new or worsening of pre-existing headache occurring within 7 days after trauma, whereas chronic PTH (cPTH) is defined as persisting aPTH >3 months after trauma. An additional goal was to study the impact of aPTH and cPTH in terms of return to work (RTW), anxiety and depression...
July 8, 2017: Emergency Medicine Journal: EMJ
https://www.readbyqxmd.com/read/28683585/pilot-findings-of-brain-displacements-and-deformations-during-roller-coaster-rides
#17
Calvin Kuo, Lyndia C Wu, Patrick P Ye, Kaveh Laksari, David Benjamin Camarillo, Ellen Kuhl
With 300 million riders annually, roller coasters are a popular recreational activity. Although the number of roller coaster injuries is relatively low, the precise effect of roller coaster rides on our brain remains unknown. Here we present the quantitative characterization of brain displacements and deformations during roller coaster rides. For two healthy adult male subjects, we recorded head accelerations during three representative rides, and, for comparison, during running and soccer headers. From the recordings, we simulated brain displacements and deformations using rigid body dynamics and finite element analyses...
July 6, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28676727/-effects-on-the-elbow-of-radial-head-resection-following-isolated-radial-head-fracture-in-young-patients
#18
C Á González Roldán, Á M Hidalgo Ovejero, J Ruiz Ruiz, P Mateo Sebastian
ackground. Radial head resection has been a widely used procedure in cases of non-reconstructable radial head fracture. Some authors propose the use of radial head arthroplasty. The purpose of this study was to evaluate the long-term outcome of radial head resection for isolated fracture, without instability at the time of the fracture, and its radiological and functional repercussions at the elbow level. METHODS: We reviewed 44 clinical records with acute resection of the radial head following isolated radial head fracture, with absence of associated injuries, younger than forty, with a minimum follow-up of 15 years...
July 4, 2017: Anales del Sistema Sanitario de Navarra
https://www.readbyqxmd.com/read/28663736/a-mechanistic-end-to-end-concussion-model-that-translates-head-kinematics-to-neurologic-injury
#19
Laurel J Ng, Vladislav Volman, Melissa M Gibbons, Pi Phohomsiri, Jianxia Cui, Darrell J Swenson, James H Stuhmiller
Past concussion studies have focused on understanding the injury processes occurring on discrete length scales (e.g., tissue-level stresses and strains, cell-level stresses and strains, or injury-induced cellular pathology). A comprehensive approach that connects all length scales and relates measurable macroscopic parameters to neurological outcomes is the first step toward rationally unraveling the complexity of this multi-scale system, for better guidance of future research. This paper describes the development of the first quantitative end-to-end (E2E) multi-scale model that links gross head motion to neurological injury by integrating fundamental elements of tissue and cellular mechanical response with axonal dysfunction...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28660534/-mild-head-injuries-in-the-elderly
#20
Heinrich W Thaler, Jochen Jung-Schmidsfeld, Simon Pienaar
In the elderly, particularly those over 80 years old, head injuries often occur as a result of falls. The majority suffer from mild head injury. After clarification of the initial symptoms in these patients, the main aim is to recognize or exclude intracranial injuries (bleeding). Demonstration of intracranial bleeding is possible with cranial computed tomography (CCT), which in contrast to magnetic resonance imaging (MRI) can be quickly carried out in most cases; however, most patients with mild head injury show no intracranial bleeding...
July 2017: Zeitschrift Für Gerontologie und Geriatrie
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