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Traumatic Brain Injuries

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https://www.readbyqxmd.com/read/28087762/a-delay-between-motor-cortex-lesions-and-neuronal-transplantation-enhances-graft-integration-and-improves-repair-and-recovery
#1
Sophie Péron, Marine Droguerre, Franck Debarbieux, Nissrine Ballout, Marianne Benoit-Marand, Maureen Francheteau, Sébastien Brot, Geneviève Rougon, Mohamed Jaber, Afsaneh Gaillard
We previously reported that embryonic motor cortical neurons transplanted immediately after lesions in the adult mouse motor cortex restored damaged motor cortical pathways. A critical barrier hindering application of transplantation strategies for a wide range of traumatic injuries is the determination of a suitable time window for therapeutic intervention. Here, we report that a one-week delay between the lesion and transplantation significantly enhances graft vascularization, survival and proliferation of grafted cells...
January 13, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28087431/characteristics-of-moderate-and-severe-traumatic-brain-injury-of-motorcycle-crashes-in-bandung-indonesia
#2
Ahmad Faried, Abdulgafoor M Bachani, Andi N Sendjaja, Yuen W Hung, Muhammad Z Arifin
No abstract text is available yet for this article.
January 10, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28086994/retraction-notice-to-calponin-and-caldesmon-cellular-domains-in-reacting-microvessels-following-traumatic-brain-injury-microvasc-res-71-2006-7
#3
Christian W Kreipke, Noah C Morgan, Theodor Petrov, Jose A Rafols
No abstract text is available yet for this article.
March 2017: Microvascular Research
https://www.readbyqxmd.com/read/28086980/inflammation-in-epileptogenesis-after-traumatic-brain-injury
#4
REVIEW
Kyria M Webster, Mujun Sun, Peter Crack, Terence J O'Brien, Sandy R Shultz, Bridgette D Semple
BACKGROUND: Epilepsy is a common and debilitating consequence of traumatic brain injury (TBI). Seizures contribute to progressive neurodegeneration and poor functional and psychosocial outcomes for TBI survivors, and epilepsy after TBI is often resistant to existing anti-epileptic drugs. The development of post-traumatic epilepsy (PTE) occurs in a complex neurobiological environment characterized by ongoing TBI-induced secondary injury processes. Neuroinflammation is an important secondary injury process, though how it contributes to epileptogenesis, and the development of chronic, spontaneous seizure activity, remains poorly understood...
January 13, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28086912/wwl70-attenuates-pge2-production-derived-from-2-arachidonoylglycerol-in-microglia-by-abhd6-independent-mechanism
#5
Mikiei Tanaka, Sean Moran, Jie Wen, Kwame Affram, Tinghua Chen, Aviva J Symes, Yumin Zhang
BACKGROUND: α/β-Hydrolase domain 6 (ABHD6) is one of the major enzymes for endocannabinoid 2-arachidonoylglycerol (2-AG) hydrolysis in microglia cells. Our recent studies have shown that a selective ABHD6 inhibitor WWL70 has anti-inflammatory and neuroprotective effects in animal models of traumatic brain injury and multiple sclerosis. However, the role of ABHD6 in the neuroinflammatory response and the mechanisms by which WWL70 suppresses inflammation has not yet been elucidated in reactive microglia...
January 10, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28079681/internal-jugular-vein-compression-a-novel-approach-to-mitigate-blast-induced-hearing-injury
#6
Brian Sindelar, Michael Shinners, Sydney Sherman, Kevin Novak, Kristine Erickson, Vimal Patel, Paul Kubilis, David Smith, John Finan, Julian E Bailes
HYPOTHESIS: Internal jugular vein (IJV) compression before blast injury will lead to reduced risk of traumatic hearing injury following exposure to a blast injury. BACKGROUND: IJV compression and its effects on not only intracranial, but also intracochlear pressure may potentiate blast induced hearing injury, therefore, precluding its use as a prophylactic therapy for blast induced traumatic brain injury. METHODS: Twenty Sprague Dawley rats were exposed to a 17...
January 10, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28078102/repeated-mild-traumatic-brain-injury-causes-focal-response-in-lateral-septum-and-hippocampus
#7
Rebecca Acabchuk, Denise I Briggs, Mariana Angoa-Pérez, Meghan Powers, Richard Wolferz, Melanie Soloway, Mai Stern, Lillian R Talbot, Donald M Kuhn, Joanne C Conover
AIM: To advance our understanding of regional and temporal cellular responses to repeated mild traumatic brain injury (rmTBI), we used a mouse model of rmTBI that incorporated acceleration, deceleration and rotational forces. MATERIALS & METHODS: A modified weight-drop method was used to compare two inter-injury intervals, rmTBI-short (five hits delivered over 3 days) and rmTBI-long (five hits delivered over 15 days). Regional investigations of forebrain and midbrain histological alterations were performed at three post-injury time points (immediate, 2 weeks and 6 weeks)...
December 2016: Concussion
https://www.readbyqxmd.com/read/28077713/reversible-disruption-of-neuronal-mitochondria-by-ischemic-and-traumatic-injury-revealed-by-quantitative-two-photon-imaging-in-the-neocortex-of-anesthetized-mice
#8
Mikhail Kislin, Jeremy Sword, Ioulia V Fomitcheva, Deborah Croom, Evgeny Pryazhnikov, Eero Lihavainen, Dmytro Toptunov, Heikki Rauvala, Andre S Ribeiro, Leonard Khiroug, Sergei A Kirov
: Mitochondria play a variety of functional roles in cortical neurons, from metabolic support and neuroprotection to the release of cytokines that trigger apoptosis. In dendrites, mitochondrial structure is closely linked to their function, and fragmentation (fission) of the normally elongated mitochondria indicates loss of their function under pathological conditions, such as stroke and brain trauma. Using in vivo two-photon microscopy in mouse brain, we quantified mitochondrial fragmentation in a full spectrum of cortical injuries, ranging from severe to mild...
January 11, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28077398/mild-traumatic-brain-injury-is-associated-with-reduced-cortical-thickness-in-those-at-risk-for-alzheimer-s-disease
#9
Jasmeet P Hayes, Mark W Logue, Naomi Sadeh, Jeffrey M Spielberg, Mieke Verfaellie, Scott M Hayes, Andrew Reagan, David H Salat, Erika J Wolf, Regina E McGlinchey, William P Milberg, Annjanette Stone, Steven A Schichman, Mark W Miller
Moderate-to-severe traumatic brain injury is one of the strongest environmental risk factors for the development of neurodegenerative diseases such as late-onset Alzheimer's disease, although it is unclear whether mild traumatic brain injury, or concussion, also confers risk. This study examined mild traumatic brain injury and genetic risk as predictors of reduced cortical thickness in brain regions previously associated with early Alzheimer's disease, and their relationship with episodic memory. Participants were 160 Iraq and Afghanistan War veterans between the ages of 19 and 58, many of whom carried mild traumatic brain injury and post-traumatic stress disorder diagnoses...
January 11, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28077335/omega-3-fatty-acids-regulate-nlrp3-inflammasome-activation-and-prevent-behavior-deficits-after-traumatic-brain-injury
#10
Chao Lin, Honglu Chao, Zheng Li, Xiupeng Xu, Yinlong Liu, Zhongyuan Bao, Lijun Hou, Yan Liu, Xiaoming Wang, Yongping You, Ning Liu, Jing Ji
Omega-3 fatty acids (ω-3 FAs) attenuate inflammation and improve neurological outcome in response to traumatic brain injury (TBI), but the specific anti-inflammatory mechanisms remain to be elucidated. Here we found that NLRP3 inflammasome and subsequent pro-inflammatory cytokines were activated in human brains after TBI. Rats treated with ω-3 FAs had significantly less TBI-induced caspase-1 cleavage and IL-1β secretion than those with vehicle. G protein-coupled receptor 40 (GPR40) was observed to be involved in this anti-inflammation...
January 8, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28077170/prosodic-processing-post-traumatic-brain-injury-a-systematic-review
#11
Gabriela Ilie, Michael D Cusimano, Wenshan Li
BACKGROUND: Traumatic brain injury (TBI) survivors often report difficulties with understanding and producing paralinguistic cues, as well as understanding and producing basic communication tasks. However, a large range of communicative deficits in this population cannot be adequately explained by linguistic impairment. The review examines prosodic processing performance post-TBI, its relationship with injury severity, brain injury localization, recovery and co-occurring psychiatric or mental health issues post-TBI METHODS: A systematic review using several databases including MEDLINE, EMBASE, Cochrane, LLBA (Linguistics and Language Behaviour Abstract) and Web of Science (January 1980 to May 2015), as well as a manual search of the cited references of the selected articles and the search cited features of PubMed was performed...
January 4, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/28077004/endoplasmic-reticulum-stress-modulation-as-a-target-for-ameliorating-effects-of-blast-induced-traumatic-brain-injury
#12
Brandon Peter Lucke-Wold, Aric Logsdon, Ryan C Turner, Jason D Huber, Charles L Rosen
Blast traumatic brain injury (bTBI) has been shown to contribute to progressive neurodegenerative disease. Recent evidence suggests that endoplasmic reticulum (ER) stress is a mechanistic link between acute neurotrauma and progressive tauopathy. We propose that ER stress contributes to extensive behavioral changes associated with a CTE-like phenotype. Targeting ER stress is a promising option for the treatment of neurotrauma related neurodegeneration warranting investigation. Utilizing our validated and clinically relevant Sprague-Dawley blast model, we investigated a time course of mechanistic changes that occur following bTBI (50 PSI) including: ER stress activation, iron mediated toxicity, and tauopathy via western blot and immunohistochemistry...
January 11, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28076834/risk-factors-for-posttraumatic-epilepsy-a-systematic-review-and-meta-analysis
#13
REVIEW
Tao Xu, Xinyuan Yu, Shu Ou, Xi Liu, Jinxian Yuan, Hao Huang, Juan Yang, Liang He, Yangmei Chen
OBJECTIVE: A systematic review and meta-analysis was performed to identify risk factors for posttraumatic epilepsy (PTE). METHODS: Two electronic databases (Medline and Embase) were searched to identify studies with a cohort, case-control, or cross-sectional design reporting on epidemiologic evidence regarding risk factors for PTE. RESULTS: Men had a higher risk of developing PTE than women [relative ratio (RR), 1.32; 95% confidence interval (CI), 1...
January 8, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28075214/intralipid-vehicle-does-not-interfere-with-the-efficacy-of-progesterone-in-attenuating-edema-following-tbi
#14
Bushra Wali, Donald Stein, Iqbal Sayeed
The recent disappointing results of Phase 3 trials for progesterone (PROG) in traumatic brain injury (TBI) have triggered speculation about reasons for the negative outcomes. One confounding factor may have been the vehicle used to administer PROG. Virtually all of the many preclinical experiments informing the clinical trials and reporting beneficial PROG effects used more soluble 2-hydroxypropyl-b-cyclodextrin (HBC) as a vehicle given intraperitoneally or subcutaneously rather than a lipid formulation given intravenously (i...
January 11, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28074401/adipsic-diabetes-insipidus-in-adult-patients
#15
REVIEW
Martín Cuesta, Mark J Hannon, Christopher J Thompson
INTRODUCTION: Adipsic diabetes insipidus (ADI) is a very rare disorder, characterized by hypotonic polyuria due to arginine vasopressin (AVP) deficiency and failure to generate the sensation of thirst in response to hypernatraemia. As the sensation of thirst is the key homeostatic mechanism that prevents hypernatraemic dehydration in patients with untreated diabetes insipidus (DI), adipsia leads to failure to respond to aquaresis with appropriate fluid intake. This predisposes to the development of significant hypernatraemia, which is the typical biochemical manifestation of adipsic DI...
January 10, 2017: Pituitary
https://www.readbyqxmd.com/read/28073948/functioning-and-health-related-quality-of-life-following-injury-in-older-people-a-systematic-review
#16
Katherine Brown, Ian D Cameron, Lisa Keay, Kristy Coxon, Rebecca Ivers
AIM AND BACKGROUND: There is growing evidence around the impact of injury and recovery trajectories but little focuses on older people, despite rising burden. The aim of this review was to describe the evidence for postinjury functioning and health-related quality of life (HRQoL) in older people. METHOD: A systematic search of three databases and an extensive search of the grey literature was carried out on prospective injury outcome studies in older people (age ≥65 years) that used a generic health status outcome measure...
January 10, 2017: Injury Prevention: Journal of the International Society for Child and Adolescent Injury Prevention
https://www.readbyqxmd.com/read/28072842/fractal-analysis-of-brain-blood-oxygenation-level-dependent-bold-signals-from-children-with-mild-traumatic-brain-injury-mtbi
#17
Olga Dona, Michael D Noseworthy, Carol DeMatteo, John F Connolly
BACKGROUND: Conventional imaging techniques are unable to detect abnormalities in the brain following mild traumatic brain injury (mTBI). Yet patients with mTBI typically show delayed response on neuropsychological evaluation. Because fractal geometry represents complexity, we explored its utility in measuring temporal fluctuations of brain resting state blood oxygen level dependent (rs-BOLD) signal. We hypothesized that there could be a detectable difference in rs-BOLD signal complexity between healthy subjects and mTBI patients based on previous studies that associated reduction in signal complexity with disease...
2017: PloS One
https://www.readbyqxmd.com/read/28070712/microdialysis-monitoring-in-clinical-traumatic-brain-injury-and-its-role-in-neuroprotective-drug-development
#18
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/28070456/a-simple-rat-model-of-mild-traumatic-brain-injury-a-device-to-reproduce-anatomical-and-neurological-changes-of-mild-traumatic-brain-injury
#19
Ho Jeong Kim, Soo Jeong Han
Mild traumatic brain injury typically involves temporary impairment of neurological function. Previous studies used water pressure or rotational injury for designing the device to make a rat a mild traumatic brain injury model. The objective of this study was to make a simple model of causing mild traumatic brain injury in rats. The device consisted of a free-fall impactor that was targeted onto the rat skull. The weight (175 g) was freely dropped 30 cm to rat's skull bregma. We installed a safety device made of acrylic panel...
2017: PeerJ
https://www.readbyqxmd.com/read/28069320/mild-induced-hypothermia-for-patients-with-severe-traumatic-brain-injury-after-decompressive-craniectomy
#20
Chunhai Tang, Yun Bao, Min Qi, Lizhi Zhou, Fan Liu, Jian Mao, Qingmei Lei, Songtao Qi, Binghui Qiu
PURPOSE: To evaluate the efficacy and safety of mild induced hypothermia for intracranial hypertension in patients with traumatic brain injury after decompressive craniectomy. METHODS: A total of 60 adults with intracranial pressure (ICP) of more than 20 mm Hg after decompressive craniectomy were randomly assigned to standard care (control group) or hypothermia (32°C-35°C) plus standard care. Then, ICP, cerebral perfusion pressure, Glasgow Outcome Scale score, and complications were assessed...
December 29, 2016: Journal of Critical Care
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