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https://www.readbyqxmd.com/read/29778441/hypoxic-postconditioning-enhances-functional-recovery-following-endothelin-1-induced-middle-cerebral-artery-occlusion-in-conscious-rats
#1
Hong L Nguyen, Alexander M Ruhoff, Thomas Fath, Nicole M Jones
Stroke is a leading cause of death and a major contributor to neurological disability in adults. Tissue plasminogen activator is the only approved treatment. However, due to its narrow therapeutic window, <5% of patients receive treatment. Recently, hypoxic postconditioning (HPC) was shown to reduce stroke induced-injury in mice, but the mechanisms and functional outcomes are still unknown. In the current study, male Sprague Dawley rats were subjected to endothelin-1 induced stroke. HPC (8% O2 , 1 h/d for 5d) or normoxia treatments were started 24 h after stroke...
May 17, 2018: Experimental Neurology
https://www.readbyqxmd.com/read/29777771/assessing-the-longer-term-effects-of-mild-traumatic-brain-injury-on-self-reported-driving-ability
#2
John Bernstein, Matthew Calamia
BACKGROUND: Mild traumatic brain injury (mTBI) may have long-term cognitive and functional consequences, and recent mTBI is associated with impaired performance on measures related to driving ability. However, it remains unclear whether prior mTBI history is associated with poorer driving performance. OBJECTIVE: To examine the longer-term effects of mTBI on self-reported driving ability. DESIGN: Retrospective, cross-sectional study. SETTING: Online...
May 16, 2018: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/29776825/a-review-of-research-efforts-to-address-the-2008-acep-guideline-for-mild-traumatic-brain-injury
#3
Jack Manquen, Tyler Combs, Anya Mazur-Mosiewicz, Donald Sanders, Michael Schiesel, Joshua Gordon, Michelle Farabough, Matt Vassar
BACKGROUND: The objective of this study was to evaluate the temporal relationship between clinical practice guideline development and subsequent research performed, with the goal of providing more data on areas of sparse evidence that serve to underlie guideline recommendations. We aimed to assess the quality of current research efforts to address the American College of Emergency Physicians guideline and to provide suggestions for future research of mild traumatic brain injury. METHODS: We identified clinical practice guideline recommendations with low levels of underlying evidence and searched ClinicalTrials...
May 8, 2018: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29775963/brain-ischemic-preconditioning-protects-against-ischemic-injury-and-preserves-the-blood-brain-barrier-via-oxidative-signaling-and-nrf2-activation
#4
Tuo Yang, Yang Sun, Leilei Mao, Meijuan Zhang, Qianqian Li, Lili Zhang, Yejie Shi, Rehana K Leak, Jun Chen, Feng Zhang
Brain ischemic preconditioning (IPC) with mild ischemic episodes is well known to protect the brain against subsequent ischemic challenges. However, the underlying mechanisms are poorly understood. Here we demonstrate the critical role of the master redox transcription factor, nuclear factor (erythroid-derived 2)-like 2 (Nrf2), in IPC-mediated neuroprotection and blood-brain barrier (BBB) preservation. We report that IPC causes generation of endogenous lipid electrophiles, including 4-hydroxy-2-nonenal (4-HNE), which release Nrf2 from inhibition by Keap1 (via Keap1-C288) and inhibition by glycogen synthase kinase 3β (via GSK3β-C199)...
May 6, 2018: Redox Biology
https://www.readbyqxmd.com/read/29775090/evaluation-of-management-and-guideline-adherence-in-children-with-mild-traumatic-brain-injury
#5
Merel C Broers, Jikke-Mien F Niermeijer, Irene A W Kotsopoulos, Hester F Lingsma, Jos F M Bruinenberg, Coriene E Catsman-Berrevoets
AIM: To evaluate the management and guideline adherence in children with mild traumatic brain injury (MTBI) in emergency departments (ED) in the Netherlands. METHODS: A multicentre cohort study was conducted, including children younger than 18 years with MTBI who presented within 24 hours after trauma in the ED of hospitals in the southwest region of the Netherlands, in 2014. Primary outcome measures for management were percentages of performed computed tomography (CT) scans and hospital admissions...
May 18, 2018: Brain Injury: [BI]
https://www.readbyqxmd.com/read/29774825/dietary-zinc-modulates-matrix-metalloproteinases-in-traumatic-brain-injury
#6
Angus Scrimgeour, Christopher Carrigan, Michelle Lynn Condlin, Maria L Urso, Roland M van den Berg, Herman P M van Helden, Scott J Montain, Marloes J A Joosen
Animal models of mild traumatic brain injury (mTBI) provide opportunity to examine the extent to which dietary interventions can be used to improve recovery after injury. Animal studies also suggest that matrix metalloproteinases (MMPs) play a role in tissue remodeling post-TBI. Because dietary zinc (Zn) improved recovery in non-blast mTBI models, and the MMPs are Zn-requiring enzymes, we evaluated the effects of low- and adequate Zn diets on MMP expression and behavioral responses, following exposure to a single blast...
May 18, 2018: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29774776/memory-deficit-in-an-object-location-task-after-mild-tbi-is-associated-with-impaired-early-object-exploration-and-both-are-restored-by-branched-chain-amino-acid-dietary-therapy
#7
Rosalia Paterno, Hannah Metheny, Akiva S Cohen
The relation between traumatic brain injury (TBI) and memory dysfunction is well established, yet imprecise. Here, we investigate whether mild TBI causes a specific deficit in spatial episodic memory. Fifty-eight (29 TBI, 29 Sham) mice were run in a spatial recognition task. To determine which phase of memory might be affected in our task, we assessed rodent performance at three different delay times (3 min, 1 hour, and 24 hours). We found that sham and TBI mice performed equally well at 3 minutes, but TBI mice had significantly impaired spatial recognition memory after a delay time of one hour...
May 18, 2018: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29774195/development-of-delayed-acute-subdural-hematoma-after-mild-traumatic-brain-injury-a-case-report
#8
Soon O Hong, Dong Soo Kang, Min Ho Kong, Se Youn Jang, Jung Hee Kim, Kwan Young Song
We report a case involving the development of a delayed acute subdural hematoma (ASDH) after trauma, with the absence of any abnormal radiological and clinical findings at initial examination. A 54-year-old male visited the emergency department after a minor trauma. The patient only complained of mild headache after head injury. He presented no abnormal findings on neurological examination, and brain computed tomography (CT) did not show any intracranial lesion or skull fractures. However, he developed seizure with disorientation eight hours after trauma, and ASDH with midline shift was found during a follow-up CT...
April 2018: Korean Journal of Neurotrauma
https://www.readbyqxmd.com/read/29774192/efficacy-of-the-all-in-one-therapeutic-strategy-for-severe-traumatic-brain-injury-preliminary-outcome-and-limitation
#9
Young-Soo Park, Yohei Kogeichi, Yoichi Shida, Hiroyuki Nakase
Objective: Despite recent advances in medicine, no significant improvement has been achieved in therapeutic outcomes for severe traumatic brain injury (TBI). In the treatment of severe multiple traumas, accurate judgment and prompt action corresponding to rapid pathophysiological changes are required. Therefore, we developed the "All-in-One" therapeutic strategy for severe TBI. In this report, we present the therapeutic concept and discuss its efficacy and limitations. Methods: From April 2007 to December 2015, 439 patients diagnosed as having traumatic intracranial injuries were treated at our institution...
April 2018: Korean Journal of Neurotrauma
https://www.readbyqxmd.com/read/29771445/tirofiban-combined-with-rt-pa-intraarterial-thrombolysis-improves-the-recanalization-rate-of-acute-middle-cerebral-artery-occlusion-in-rabbits
#10
Y-J Yu, W Xiong
OBJECTIVE: To investigate the curative effect of tirofiban combined with recombinant tissue-plasminogen activator (rt-PA) selective intra-arterial thrombolysis on acute middle cerebral artery occlusion (MCAO). MATERIALS AND METHODS: A total of 60 adult male Japanese white rabbits weighing 2.5-3.0 kg were selected, and the acute cerebral infarction model was established via autologous thromboembolism of middle cerebral artery. Rabbits were randomly divided into 4 groups: tirofiban group (Ti group, 5 μg/kg, n=15), rt-PA group (rt-PA group, 2 mg/kg, n=15), tirofiban + rt-PA group (Ti + rt-PA group, 3 μg/kg Ti + 1 mg/kg rt-PA, n=15), and control group (Co group, n=15)...
May 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29771142/the-development-of-a-mouse-model-of-mtbi-induced-post-traumatic-migraine-and-identification-of-the-delta-opioid-receptor-as-a-novel-therapeutic-target
#11
Laura S Moye, Madeline L Novack, Alycia F Tipton, Harish Krishnan, Subhash C Pandey, Amynah Aa Pradhan
Background Post-traumatic headache is the most common and long-lasting impairment observed following mild traumatic brain injury, and frequently has migraine-like characteristics. The mechanisms underlying progression from mild traumatic brain injury to post-traumatic headache are not fully understood. The aim of this study was to develop a mouse model of post-traumatic headache and identify mechanisms and novel targets associated with this disorder. Methods We combined the closed head weight-drop method and the nitroglycerin chronic migraine model...
January 1, 2018: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/29771041/-analysis-of-118-cases-of-benign-paroxysmal-positional-vertigo-after-trauma
#12
H L Xue, C X Li, L X Duan, Y L Jing
Objective: The aim of this study is to retrospective analysis the clinic features of 118 cases of benign paroxysmal positional vertigo after trauma. Method: Analyzes clinic features of injury in 118 cases of benign paroxysmal positional vertigo after trauma, and classified and localized the craniocerebral trauma. The 118 cases were tested with different positioning tests in the sequence of Dix hallpike test and rolling test. Then, proper otolith manual reduction was given. Result: In 118 cases of BPPV after trauma including 35 cases of skull fracture, 6 cases of concussion, 17 cases of scalp hematoma, 28 cases of scalp laceration, 14 cases of mild brain contusion and 18 cases of head combined injury...
May 20, 2017: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29769541/modchimera-a-novel-murine-closed-head-model-of-moderate-traumatic-brain-injury
#13
A D Sauerbeck, C Fanizzi, J H Kim, M Gangolli, P V Bayly, C L Wellington, D L Brody, T T Kummer
Traumatic brain injury is a major source of global disability and mortality. Preclinical TBI models are a crucial component of therapeutic investigation. We report a tunable, monitored model of murine non-surgical, diffuse closed-head injury-modCHIMERA-characterized by impact as well as linear and rotational acceleration. modCHIMERA is based on the Closed-Head Impact Model of Engineered Rotational Acceleration (CHIMERA) platform. We tested this model at 2 energy levels: 1.7 and 2.1 Joules-substantially higher than previously reported for this system...
May 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29768294/a-pilot-study-to-reduce-computed-tomography-utilization-for-pediatric-mild-head-injury-in-the-emergency-department-using-a-clinical-decision-support-tool-and-a-structured-parent-discussion-tool
#14
Rakesh S Engineer, Seth R Podolsky, Baruch S Fertel, Purva Grover, Heather Jimenez, Erin L Simon, Courtney M Smalley
INTRODUCTION: The American College of Emergency Physicians embarked on the "Choosing Wisely" campaign to avoid computed tomographic (CT) scans in patients with minor head injury who are at low risk based on validated decision rules. We hypothesized that a Pediatric Mild Head Injury Care Path could be developed and implemented to reduce inappropriate CT utilization with support of a clinical decision support tool (CDST) and a structured parent discussion tool. METHODS: A quality improvement project was initiated for 9 weeks to reduce inappropriate CT utilization through 5 interventions: (1) engagement of leadership, (2) provider education, (3) incorporation of a parent discussion tool to guide discussion during the emergency department (ED) visit between the parent and the provider, (4) CDST embedded in the electronic medical record, and (5) importation of data into the note to drive compliance...
May 15, 2018: Pediatric Emergency Care
https://www.readbyqxmd.com/read/29767229/usability-of-world-health-organization-disability-assessment-schedule-in-chronic-traumatic-brain-injury
#15
Sinikka Tarvonen-Schröder, Olli Tenovuo, Anne Kaljonen, Katri Laimi
OBJECTIVES: To investigate functioning measured with the 12-item World Health Organization Disability Assessment Schedule (WHODAS 2.0) in patients with mild, moderate and severe traumatic brain injury, and to compare patients' experiences with assessments made by their significant others and by consultant neurologists. METHODS: A total of 112 consecutive patients with traumatic brain injury (29 mild, 43 moderate, 40 severe) and their significant others completed a 12-item WHODAS 2...
May 16, 2018: Journal of Rehabilitation Medicine
https://www.readbyqxmd.com/read/29766125/trauma-early-mortality-prediction-tool-tempt-for-assessing-28-day-mortality
#16
Ryan C Kunitake, Lucy Z Kornblith, Mitchell Jay Cohen, Rachael A Callcut
Background: Prior mortality prediction models have incorporated severity of anatomic injury quantified by Abbreviated Injury Severity Score (AIS). Using a prospective cohort, a new score independent of AIS was developed using clinical and laboratory markers present on emergency department presentation to predict 28-day mortality. Methods: All patients (n=1427) enrolled in an ongoing prospective cohort study were included. Demographic, laboratory, and clinical data were recorded on admission...
2018: Trauma surgery & acute care open
https://www.readbyqxmd.com/read/29766124/routine-repeat-head-ct-may-not-be-necessary-for-patients-with-mild-tbi
#17
Claire B Rosen, Diego D Luy, Molly R Deane, Thomas M Scalea, Deborah M Stein
Background: Routine repeat cranial CT (RHCT) is standard of care for CT-verified traumatic brain injury (TBI). Despite mixed evidence, those with mild TBI are subject to radiation and expense from serial CT scans. Thus, we investigated the necessity and utility of RHCT for patients with mild TBI. We hypothesized that repeat head CT in these patients would not alter patient care or outcomes. Methods: We retrospectively studied patients suffering from mild TBI (Glasgow Coma Scale (GCS) score 13-15) and treated at the R Adams Cowley Shock Trauma Center from November 2014 through January 2015...
2018: Trauma surgery & acute care open
https://www.readbyqxmd.com/read/29765217/allergy-to-chlorpromazine-and-valproic-acid-following-carbamazepine-hypersensitivity-in-a-patient-with-an-hla-b-4601-allele
#18
Kumi Sakurada, Takeshi Kozaru, Kazuo Yamada, Masashi Nibuya, Kiyoshi Nagata, Eiji Suzuki
A 73-year-old man, exhibiting psychomotor excitement after traumatic brain injury, developed allergic cutaneous eruptions and hepatic inflammation that did not resolve after the cessation of carbamazepine (CBZ). Fusing maculopapular erythema was observed in the face, neck, presternal region, and bilaterally in the forearms and feet. A drug-induced lymphocyte stimulation test revealed hypersensitivity to chlorpromazine (CPZ) and valproic acid (VPA), as well as to CBZ. The allergic reaction with eosinophilia to CPZ and VPA was suspected to have emerged following CBZ hypersensitivity, since previous treatment with CPZ and VPA prior to the introduction of CBZ had not been associated with adverse reactions earlier in the course of treatment...
2018: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/29761018/behavioral-and-neurophysiological-abnormalities-during-cued-continuous-performance-tasks-in-patients-with-mild-traumatic-brain-injury
#19
Weixiang Zhao, Ruhong Wu, Suhong Wang, Haihui Qi, Yitao Qian, Suinuan Wang
Objective: This study's aim was to investigate the features and neural mechanisms of sustained attention in patients with mild traumatic brain injury (mTBI) by comparing and analyzing neuropsychological, behavioral, event-related potentials, and event-related desynchronization and synchronization between mTBI patients and healthy controls. Methods: Twenty mTBI patients with mTBI and 20 healthy controls underwent the Mini-Mental State Examination (MMSE) and a cued continuous performance task (AX-CPT)...
May 2018: Brain and Behavior
https://www.readbyqxmd.com/read/29757076/economic-evaluation-of-concussion-programs-in-the-state-of-idaho-the-collective-potential-of-prevention-and-clinical-care
#20
Susie Bergeron, Hilary Flint, Zeynep Hansen
Concussion, or mild traumatic brain injury, especially among young children, teenagers, and young adults, is a significant problem in Ada County, Idaho, and the United States. Although much has been learned about concussion, considerable controversy and gaps in knowledge still exist in many areas of research, leading to variation in concussion assessment, treatment, and management protocols. Health systems can positively impact concussion outcomes through community education and outreach, and provision of timely, coordinated, evidence-based clinical care...
May 14, 2018: Population Health Management
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