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https://www.readbyqxmd.com/read/28647441/prevention-of-epilepsy-should-we-be-avoiding-clinical-trials
#1
REVIEW
Pavel Klein, Ivana Tyrlikova
Epilepsy prevention is one of the great unmet needs in epilepsy. Approximately 15% of all epilepsy is caused by an acute acquired CNS insult such as traumatic brain injury (TBI), stroke or encephalitis. There is a latent period between the insult and epilepsy onset that presents an opportunity to intervene with preventive treatment that is unique in neurology. Yet no phase 3 epilepsy prevention studies, and only 2 phase 2 studies have been initiated in the last 16years. Current prevailing opinion is that the research community is not ready for clinical preventive epilepsy studies, and that animal models should first be refined and biomarkers of epileptogenesis and of epilepsy discovered before clinical studies are embarked upon...
June 21, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28641124/neural-repair-by-nt3-chitosan-via-enhancement-of-endogenous-neurogenesis-after-adult-focal-aspiration-brain-injury
#2
Peng Hao, Hongmei Duan, Fei Hao, Lan Chen, Min Sun, Kevin S Fan, Yi Eve Sun, David Williams, Zhaoyang Yang, Xiaoguang Li
The latent regenerative potential of endogenous neural stem/progenitor cells (NSCs) in the adult mammalian brain has been postulated as a likely source for neural repair. However, the inflammatory and inhibitory microenvironment after traumatic brain injury (TBI) prohibits NSCs from generating new functional neurons to restore brain function. Here we report a biodegradable material, chitosan, which, when loaded with neurotrophin-3 (NT3) and injected into the lesion site after TBI, effectively engaged endogenous NSCs to proliferate and migrate to the injury area...
April 26, 2017: Biomaterials
https://www.readbyqxmd.com/read/28634501/subarachnoid-hemorrhage-and-long-term-stroke-risk-after-traumatic-brain-injury
#3
Nicholas A Morris, Joséphine Cool, Alexander E Merkler, Hooman Kamel
BACKGROUND: Recent studies suggest that traumatic brain injury (TBI) is a risk factor for subsequent ischemic stroke, even years after the initial insult. The mechanisms of the association remain unclear. The presence of traumatic subarachnoid hemorrhage (tSAH) may mediate the effect of TBI on long-term stroke risk, as it has previously been linked to short-term vasospasm and delayed cerebral ischemia. METHODS: Using administrative claims data, we conducted a retrospective cohort study of acute care hospitalizations...
July 2017: Neurohospitalist
https://www.readbyqxmd.com/read/28611087/acute-ischemic-stroke-after-moderate-to-severe-traumatic-brain-injury-incidence-and-impact-on-outcome
#4
Robert G Kowalski, Juliet K Haarbauer-Krupa, Jeneita M Bell, John D Corrigan, Flora M Hammond, Michel T Torbey, Melissa C Hofmann, Kristen Dams-O'Connor, A Cate Miller, Gale G Whiteneck
BACKGROUND AND PURPOSE: Traumatic brain injury (TBI) leads to nearly 300 000 annual US hospitalizations and increased lifetime risk of acute ischemic stroke (AIS). Occurrence of AIS immediately after TBI has not been well characterized. We evaluated AIS acutely after TBI and its impact on outcome. METHODS: A prospective database of moderate to severe TBI survivors, admitted to inpatient rehabilitation at 22 Traumatic Brain Injury Model Systems centers and their referring acute-care hospitals, was analyzed...
June 13, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28580093/photobiomodulation-and-the-brain-a-new-paradigm
#5
Madison Hennessy, Michael R Hamblin
Transcranial photobiomodulation (PBM) also known as low level laser therapy (tLLLT) relies on the use of red/NIR light to stimulate, preserve and regenerate cells and tissues. The mechanism of action involves photon absorption in the mitochondria (cytochrome c oxidase), and ion channels in cells leading to activation of signaling pathways, up-regulation of transcription factors, and increased expression of protective genes. We have studied PBM for treating traumatic brain injury (TBI) in mice using a NIR laser spot delivered to the head...
January 2017: Journal of Optics
https://www.readbyqxmd.com/read/28577991/inhibition-of-na-k-2cl-cotransporter-attenuates-blood-brain-barrier-disruption-in-a-mouse-model-of-traumatic-brain-injury
#6
Jun Zhang, Hongjian Pu, Haiyue Zhang, Zhishuo Wei, Xiaoyan Jiang, Mingyue Xu, Lili Zhang, Wenting Zhang, Jialin Liu, Hengxing Meng, R Anne Stetler, Dandan Sun, Jun Chen, Yanqin Gao, Ling Chen
Traumatic brain injury (TBI) can lead to long-term motor and cognitive dysfunction, which can be at least partly attributed to blood-brain barrier (BBB) disruption. The mechanisms underlying post-TBI BBB disruption, however, are poorly understood thus far. Na(+)-K(+)-2Cl(-) cotransporter isoform 1 (NKCC1) is a universally expressed ion transporter that maintains intracellular ion homeostasis by increasing intracellular K(+) and Cl(-). Having been characterized in stroke models, NKCC1 is activated in various cell types in the ischemic brain, and is thought to mediate BBB disruption, brain edema, and neuronal cell death...
May 31, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28479338/effects-of-experimental-traumatic-brain-injury-and-impaired-glutamate-transport-on-cortical-spreading-depression
#7
Mahshid Sadat Hosseini-Zare, Feng Gu, Ahmad Abdulla, Simon Powell, Jokūbas Žiburkus
Cortical spreading depression (CSD) is associated with traumatic brain injury (TBI), stroke, migraines, and seizures. Typically, following TBIs and other insults, neuronal excitability in and around the area of the injury is affected, with reported increases in local glutamate signaling. Astrocytic glutamate transporters are critical for precise regulation of the extracellular glutamate availability. However, it remains unclear how impaired astrocytic glutamate transport or an acute TBI affect characteristics of the CSD...
May 4, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28462608/traumatic-brain-injury-occludes-training-dependent-cortical-reorganization-in-the-contralesional-hemisphere
#8
David Pruitt, Tanya Danaphongse, Ariel Schmid, Robert Morrison, Michael Kilgard, Robert L Rennaker Ii, Seth Hays
Rehabilitative training drives plasticity in the ipsilesional (injured) motor cortex that is believed to support recovery of motor function after either stroke or TBI. In addition, adaptive plasticity in the contralesional (uninjured) motor cortex has been well-characterized in the context of stroke. While similar rehabilitation-dependent plasticity in the uninjured hemisphere may occur after TBI, this has yet to be thoroughly explored. In this study, we investigated the effects of TBI and rehabilitative training on reorganization of movement representations in the uninjured motor cortex...
May 2, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28458415/is-aura-around-citicoline-fading-a-systemic-review
#9
Saurabh Agarwal, Bhoomika M Patel
Stroke and traumatic brain injury (TBI) are the critical public health and socioeconomic problems throughout the world. At present, citicoline is used as a coadjuvant for the management of acute ischemic stroke (AIS) and TBI in various countries. This systemic review analyzes the beneficial role of citicoline in AIS and TBI. This systemic review is based on "PubMed" and "Science Direct" search results for citicoline role in stroke and TBI. In this systemic review, we included 12 human trials. A meta-analysis was performed on the basis of neurological evaluation, functional evaluation and Glasgow outcome scale, domestic adaptation evaluation outcomes, and cognitive outcome individually...
January 2017: Indian Journal of Pharmacology
https://www.readbyqxmd.com/read/28454124/influence-of-the-rehabilitation-outcome-on-returning-to-drive-after-neurological-impairment
#10
Urša Š Čižman, Gaj Vidmar, Petra Drnovšek
In traumatic brain injury (TBI) and stroke rehabilitation, the question of reintegration of the driver into traffic is faced very often. Driving is an important domain and for some patients, return to driving represents a crucial event for community inclusion. The aim of our study was to examine the utility of Glasgow Coma Scale within the first 24 h of injury and the Functional Independence Measure (FIM) at rehabilitation admission for predicting the return to driving. We included 72 patients after TBI or stroke...
June 2017: International Journal of Rehabilitation Research. Revue Internationale de Recherches de Réadaptation
https://www.readbyqxmd.com/read/28444554/relationships-between-environmental-factors-and-participation-in-adults-with-traumatic-brain-injury-stroke-and-spinal-cord-injury-a-cross-sectional-multi-center-study
#11
Alex W K Wong, Sheryl Ng, Jessica Dashner, M Carolyn Baum, Joy Hammel, Susan Magasi, Jin-Shei Lai, Noelle E Carlozzi, David S Tulsky, Ana Miskovic, Arielle Goldsmith, Allen W Heinemann
PURPOSE: To develop and evaluate a model of environmental factors-participation relationships for persons with traumatic brain injury (TBI), stroke, and spinal cord injury (SCI), and test whether this model differed across three diagnostic groups, as well as other demographic and clinical characteristics. METHODS: A cross-sectional observational study included 545 community-dwelling adults with neurological disorders (TBI = 166; stroke = 189; SCI = 190) recruited at three academic medical centers...
April 25, 2017: Quality of Life Research
https://www.readbyqxmd.com/read/28420282/exploring-predictors-of-treatment-outcome-in-cognitive-behavior-therapy-for-sleep-disturbance-following-acquired-brain-injury
#12
Sylvia Nguyen, Dean McKenzie, Adam McKay, Dana Wong, Shantha M W Rajaratnam, Gershon Spitz, Gavin Williams, Darren Mansfield, Jennie Ponsford
PURPOSE: To identify predictors of treatment response to cognitive behavior therapy (CBT) for sleep disturbance following acquired brain injury (ABI). METHODS: Classification and regression tree (CART) analysis was conducted on individual patient data from two pilot randomized controlled trials (RCTs): one in traumatic brain injury (TBI), the other in stroke. The combined sample comprised 32 participants; 15 receiving CBT and 17 allocated to treatment as usual (TAU)...
April 19, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28419114/h-fabp-a-new-biomarker-to-differentiate-between-ct-positive-and-ct-negative-patients-with-mild-traumatic-brain-injury
#13
Linnéa Lagerstedt, Juan José Egea-Guerrero, Alejandro Bustamante, Joan Montaner, Ana Rodríguez-Rodríguez, Amir El Rahal, Natacha Turck, Manuel Quintana, Roser García-Armengol, Carmen Melinda Prica, Elisabeth Andereggen, Lara Rinaldi, Asita Sarrafzadeh, Karl Schaller, Jean-Charles Sanchez
The majority of patients with mild traumatic brain injury (mTBI) will have normal Glasgow coma scale (GCS) of 15. Furthermore, only 5%-8% of them will be CT-positive for an mTBI. Having a useful biomarker would help clinicians evaluate a patient's risk of developing intracranial lesions. The S100B protein is currently the most studied and promising biomarker for this purpose. Heart fatty-acid binding protein (H-FABP) has been highlighted in brain injury models and investigated as a biomarker for stroke and severe TBI, for example...
2017: PloS One
https://www.readbyqxmd.com/read/28378621/response-of-the-cerebral-vasculature-following-traumatic-brain-injury
#14
Arjang Salehi, John H Zhang, Andre Obenaus
The critical role of the vasculature and its repair in neurological disease states is beginning to emerge particularly for stroke, dementia, epilepsy, Parkinson's disease, tumors and others. However, little attention has been focused on how the cerebral vasculature responds following traumatic brain injury (TBI). TBI often results in significant injury to the vasculature in the brain with subsequent cerebral hypoperfusion, ischemia, hypoxia, hemorrhage, blood-brain barrier disruption and edema. The sequalae that follow TBI result in neurological dysfunction across a host of physiological and psychological domains...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28366792/serum-macrophage-migration-inhibitory-factor-concentrations-correlate-with-prognosis-of-traumatic-brain-injury
#15
Ding-Bo Yang, Wen-Hua Yu, Xiao-Qiao Dong, Zu-Yong Zhang, Quan Du, Qiang Zhu, Zhi-Hao Che, Hao Wang, Yong-Feng Shen, Li Jiang
BACKGROUND: Macrophage migration inhibitory factor (MIF) is a well-known pro-inflammatory cytokine. Serum MIF concentrations are associated with the severity and prognosis of ischemic stroke. METHODS: In this prospective, observational study, white blood cell (WBC) count and serum concentrations of C-reactive protein (CRP), interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-α) and MIF among 108 severe traumatic brain injury (TBI) patients and 108 controls were measured...
March 30, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28359729/dl-3-n-butylphthalide-induced-neuroprotection-regenerative-repair-functional-recovery-and-psychological-benefits-following-traumatic-brain-injury-in-mice
#16
Yingying Zhao, Jin Hwan Lee, Dongdong Chen, Xiaohuan Gu, Asha Caslin, Jimei Li, Shan Ping Yu, Ling Wei
Previous investigations suggest that DL-3-n-butylphthalide (NBP) is a promising multifaceted drug for the treatment of stroke. It is not clear whether NBP can treat traumatic brain injury (TBI) and what could be the mechanisms of therapeutic benefits. To address these issues, TBI was induced by a controlled cortical impact in adult male mice. NBP (100 mg/kg) or saline was intraperitoneally administered within 5 min after TBI. One day after TBI, apoptotic events including caspase-3/9 activation, cytochrome c release from the mitochondria, and apoptosis-inducing factor (AIF) translocation into the nucleus in the pericontusion region were attenuated in NBP-treated mice compared to TBI-saline controls...
March 28, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28334392/validation-of-the-nih-toolbox-in-individuals-with-neurologic-disorders
#17
N E Carlozzi, S Goodnight, K B Casaletto, A Goldsmith, R K Heaton, A W K Wong, C M Baum, R Gershon, A W Heinemann, D S Tulsky
Objective: Individuals with spinal cord injury (SCI), traumatic brain injury (TBI), and stroke experience a variety of neurologically related deficits across multiple domains of function. The NIH Toolbox for the Assessment of Neurological and Behavioral Function (NIHTB) examines motor, sensation, cognition, and emotional functioning. The purpose of this paper is to establish the validity of the NIHTB in individuals with neurologic conditions. Methods: Community-dwelling individuals with SCI (n = 209), TBI (n = 184), or stroke (n = 211) completed the NIHTB...
March 18, 2017: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/28303450/dr%C3%AE-1-mog-35-55-treatment-reduces-lesion-volumes-and-improves-neurological-deficits-after-traumatic-brain-injury
#18
Liu Yang, Zhijia Liu, Honglei Ren, Lei Zhang, Siman Gao, Li Ren, Zhi Chai, Roberto Meza-Romero, Gil Benedek, Arthur A Vandenbark, Halina Offner, Minshu Li
Traumatic brain injury (TBI) results in severe neurological impairments without effective treatments. Inflammation appears to be an important contributor to key pathogenic events such as secondary brain injury following TBI and therefore serves as a promising target for novel therapies. We have recently demonstrated the ability of a molecular construct comprised of the human leukocyte antigen (HLA)-DRα1 domain linked covalently to mouse (m)MOG-35-55 peptide (DRα1-MOG-35-55 construct) to reduce CNS inflammation and tissue injury in animal models of multiple sclerosis and ischemic stroke...
March 16, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28298143/p450-eicosanoids-and-reactive-oxygen-species-interplay-in-brain-injury-and-neuroprotection
#19
Xuehong Liu, Catherine M Davis, Nabil J Alkayed
SIGNIFICANCE: Eicosanoids are endogenous lipid mediators that play important roles in brain function and disease. Acute brain injury such as that which occurs in stroke and traumatic brain injury increases the formation of eicosanoids, which, in turn, exacerbate or diminish injury. In chronic neurodegenerative diseases such as Alzheimer's disease and vascular dementia (VD), eicosanoid synthetic and metabolizing enzymes are altered, disrupting the balance between neuroprotective and neurotoxic eicosanoids...
April 20, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28287909/clinical-evaluation-of-a-microwave-based-device-for-detection-of-traumatic-intracranial-hemorrhage
#20
Johan Ljungqvist, Stefan Candefjord, Mikael Persson, Lars Jönsson, Thomas Skoglund, Mikael Elam
Traumatic brain injury (TBI) is the leading cause of death and disability among young persons. A key to improve outcome for patients with TBI is to reduce the time from injury to definitive care by achieving high triage accuracy. Microwave technology (MWT) allows for a portable device to be used in the pre-hospital setting for detection of intracranial hematomas at the scene of injury, thereby enhancing early triage and allowing for more adequate early care. MWT has previously been evaluated for medical applications including the ability to differentiate between hemorrhagic and ischemic stroke...
March 13, 2017: Journal of Neurotrauma
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