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https://www.readbyqxmd.com/read/29222798/a-controlled-cortical-impact-preclinical-model-of-traumatic-brain-injury
#1
Michela Campolo, Emanuela Esposito, Salvatore Cuzzocrea
Over the past three decades, attempts at understanding the multifaceted mechanisms underlying the pathophysiology of traumatic brain injury (TBI) have seen the development of numerous animal models to investigate changes in molecular and cellular pathways and neurobehavioral outcomes. Until now, controlled cortical impact (CCI) represents the most frequently used mechanical model to induce TBI, given its accuracy, easy of control, and, most importantly, its ability to produce brain injuries similar to those seen in humans...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29222622/toll-like-receptor-4-knockdown-attenuates-brain-damage-and-neuroinflammation-after-traumatic-brain-injury-via-inhibiting-neuronal-autophagy-and-astrocyte-activation
#2
Hongsheng Jiang, Yanzhou Wang, Xin Liang, Xiaofeng Xing, Xiuzhen Xu, Caifeng Zhou
Toll-like receptor 4 (TLR4) has been linked to various pathophysiological conditions, such as traumatic brain injury (TBI). It is reported that posttraumatic neuroinflammation is an essential event in the progression of brain injury after TBI. Recent evidences indicate that TLR4 mediates glial phagocytic activity and inflammatory cytokines production. Thus, TLR4 may be an important therapeutic target for neuroinflammatory injury post-TBI. This study was designed to explore potential effects and underlying mechanisms of TLR4 in rats suffered from TBI...
December 8, 2017: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/29220591/cholinergic-and-cytoprotective-signaling-cascades-mediate-the-mitigative-effect-of-erythropoietin-on-acute-radiation-syndrome
#3
Shereen Mohamed Galal, Mohamed Khairy Abdel-Rafei, Hesham Hasan
The present investigation aimed to evaluate the radiomitigative efficacy of the recombinant human erythropoietin (rhEPO) against acute radiation syndrome (ARS) in a rat model. Rats were irradiated with a single sublethal dose of γ- radiation (7 Gy; total body irradiation; TBI) at the 1st day of experimental course, then received EPO (5000 IU/kg; i.p) 24 hrs post irradiation, rats were observed for 30 days of survival analysis. Administration of EPO improved 30 days survival, alleviated TBI- induced myelosuppression and pancytopenia, by augmenting lymphocytes and WBCs in the peripheral blood of rats, while bone marrow (BM) and spleen cellularity were restored...
December 8, 2017: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/29219635/hashtag-tbi-a-content-and-network-data-analysis-of-tweets-about-traumatic-brain-injury
#4
Melissa Brunner, Bronwyn Hemsley, Stephen Dann, Leanne Togher, Stuart Palmer
OBJECTIVE: The aims of this study were to: (a) determine how Twitter is used by people with traumatic brain injury (TBI) and TBI organisations, (b) analyse the Twitter networks and content of tweets tagged with TBI-related hashtags, and (c) identify any challenges people with TBI encounter in using Twitter. RESEARCH DESIGN: Mixed methods in a Twitter hashtag study. METHODS: Mixed methods in a Twitter hashtag study. Tweets tagged with TBI-related hashtags were harvested from the Twitter website over a one-month period in 2016 and analysed qualitatively and quantitatively...
2018: Brain Injury: [BI]
https://www.readbyqxmd.com/read/29215295/quantitative-proteomic-study-reveals-up-regulation-of-camp-signaling-pathway-related-proteins-in-mild-traumatic-brain-injury
#5
Hai Song, Shanhua Fang, Jing Gao, Jiaxong Wang, Zhenzhen Cao, Zeyun Guo, Qiongping Huang, Yongqang Qu, Hu Zhou, Jianyun Yu
Traumatic brain injury (TBI), as a neurological injury, becomes a leading cause of disability and mortality due to lacking effective therapy. About 75% of TBI is mild traumatic brain injury (mTBI). However, the complex molecular mechanisms underlying mTBI pathophysiology remains to be elucidated. In this study, iTRAQ-based quantitative proteomic approach was employed to measure temporal-global proteome changes of rat brain tissues from different time points (1 day, 7 day and 6 months) post single mTBI (smTBI) and repetitive mTBI (rmTBI)...
December 7, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/29214386/improvement-rate-of-patients-with-severe-brain-injury-during-post-acute-intensive-rehabilitation
#6
Rita Formisano, Marianna Contrada, Marta Aloisi, Maria Gabriella Buzzi, Paola Cicinelli, Cecilia Della Vedova, Letizia Laurenza, Maria Matteis, Francesca Spanedda, Vincenzo Vinicola, Marco Iosa
Patients with severe acquired brain injury (SABI) may evolve towards different outcomes. The primary aim was to evaluate the clinical evolution of a large population of patients with SABI admitted to post-acute rehabilitation from 2001 to 2016, diagnosed with severe brain injury (GCS ≤ 8) in the acute phase and a coma duration of at least 24 h. The possible changes between the admission time to a post-acute rehabilitation hospital and the discharge time were measured by means of Glasgow Outcome Scale (GOS), Level of Cognitive Functioning (LCF), and Disability Rating Scale (DRS)...
December 6, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/29213509/comparative-analysis-of-the-electroencephalogram-in-patients-with-alzheimer-s-disease-diffuse-axonal-injury-patients-and-healthy-controls-using-loreta-analysis
#7
Jéssica Natuline Ianof, Francisco José Fraga, Leonardo Alves Ferreira, Renato Teodoro Ramos, José Luiz Carlos Demario, Regina Baratho, Luís Fernando Hindi Basile, Ricardo Nitrini, Renato Anghinah
Alzheimer's disease (AD) is a dementia that affects a large contingent of the elderly population characterized by the presence of neurofibrillary tangles and senile plaques. Traumatic brain injury (TBI) is a non-degenerative injury caused by an external mechanical force. One of the main causes of TBI is diffuse axonal injury (DAI), promoted by acceleration-deceleration mechanisms. Objective: To understand the electroencephalographic differences in functional mechanisms between AD and DAI groups...
April 2017: Dementia & Neuropsychologia
https://www.readbyqxmd.com/read/29213487/traumatic-brain-injury-an-eeg-point-of-view
#8
REVIEW
Jéssica Natuline Ianof, Renato Anghinah
Traumatic brain injury (TBI) is a silent epidemic. Mild traumatic brain injury (mTBI) causes brain injury that results in electrophysiologic abnormalities visible on electroencephalography (EEG) recordings. The purpose of this brief review was to discuss the importance of EEG findings in traumatic brain injury. Relevant articles published during the 1996-2016 period were retrieved from Medline (PubMed). The keywords were in English and included "traumatic brain injury", "EEG" and "quantitative EEG". We found 460 articles, analyzed 52 and selected 13 articles...
January 2017: Dementia & Neuropsychologia
https://www.readbyqxmd.com/read/29212462/pharmacological-targeting-of-secondary-brain-damage-following-ischemic-or-hemorrhagic-stroke-traumatic-brain-injury-and-bacterial-meningitis-a-systematic-review-and-meta-analysis
#9
Thomas Beez, Hans-Jakob Steiger, Nima Etminan
BACKGROUND: The effectiveness of pharmacological strategies exclusively targeting secondary brain damage (SBD) following ischemic stroke, aneurysmal subarachnoid hemorrhage, aSAH, intracerebral hemorrhage (ICH), traumatic brain injury (TBI) and bacterial meningitis is unclear. This meta-analysis studied the effect of SBD targeted treatment on clinical outcome across the pathological entities. METHODS: Randomized, controlled, double-blinded trials on aforementioned entities with 'death' as endpoint were identified...
December 7, 2017: BMC Neurology
https://www.readbyqxmd.com/read/29212411/geriatric-traumatic-brain-injury-epidemiology-outcomes-knowledge-gaps-and-future-directions
#10
Raquel C Gardner, Kristen Dams-O'Connor, Molly Rose Morrissey, Geoffrey Manley
This review of the literature on traumatic brain injury (TBI) in older adults focuses on incident TBI sustained in older adulthood ("geriatric TBI") rather than on the separate, but related, topic of older adults with a history of earlier-life TBI. We describe the epidemiology of geriatric TBI, the impact of comorbidities and pre-injury function on TBI risk and outcomes, diagnostic testing, management issues, outcomes, and critical directions for future research. The highest incidence of TBI-related emergency department visits, hospitalizations, and deaths occur in older adults...
December 6, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29212405/a-description-of-a-new-continuous-physiologic-index-in-tbi-using-the-correlation-between-pulse-amplitude-of-icp-and-cerebral-perfusion-pressure
#11
Frederick Adam Zeiler, Joseph Donnelly, David Menon, Peter Smieleweski, Peter John Hutchinson, Marek Czosnyka
To describe a new continuous index of physiologic measurement in a TBI population, the moving correlation coefficient between intracranial pressure (ICP) pulse amplitude (AMP) and cerebral perfusion pressure (CPP), which we refer to as RAC. We use patient examples of sustained intracranial hypertension, systemic arterial hypotension and plateau waves, as well as the retrospective analysis of 358 non-decompressive craniectomy (DC) traumatic brain injury (TBI) patients with high frequency ICP and ABP data, to explore the relationships of this new index, RAC, with AMP, ICP, CPP, RAP, pressure reactivity index (PRx) and pulse amplitude index (PAx)...
December 6, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29212259/metabolomics-reveals-the-effect-of-xuefu-zhuyu-decoction-on-plasma-metabolism-in-rats-with-acute-traumatic-brain-injury
#12
Dandan Feng, Zian Xia, Jing Zhou, Hongmei Lu, Chunhu Zhang, Rong Fan, Xingui Xiong, Hanjin Cui, Pingping Gan, Wei Huang, Weijun Peng, Feng He, Zhiming Wang, Yang Wang, Tao Tang
Xuefu Zhuyu Decoction (XFZY), an important traditional Chinese herbal formula, has been reported effective on traumatic brain injury (TBI) in rats. However, its cerebral protection mechanism has not been clarified at the metabolic level. This work aims to explore the global metabolic characteristics of XFZY in rats during the acute phase of TBI on days 1 and 3. A plasma metabolomics method based on gas chromatography-mass spectrometry coupled with univariate analysis and multivariate statistical analysis was performed in three groups (Sham, Vehicle, XFZY)...
November 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/29211502/physical-activity-perceptions-of-people-with-severe-traumatic-brain-injury-living-in-the-community
#13
Penelope Analytis, Adam McKay, Megan Hamilton, Gavin Williams, Narelle Warren, Jennie Ponsford
PRIMARY OBJECTIVE: Increasing physical activity (PA) among people with severe traumatic brain injury (TBI) represents an important long-term rehabilitation goal. To design effective interventions to promote PA, the factors associated with PA engagement post-TBI need to be understood. RESEARCH DESIGN: A qualitative study design was employed to investigate the factors influencing PA engagement in people with severe TBI living in the community. METHODS AND PROCEDURES: Face-to-face interviews were conducted with eight people with severe TBI three to five years post-injury...
December 6, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/29210221/heart-rate-sensitive-optical-coherence-angiography-for-measuring-vascular-changes-due-to-posttraumatic-brain-injury-in-mice
#14
Jordi L Tremoleda, Karl Alvarez, Abdirahman Aden, Robert Donnan, Adina T Michael-Titus, Peter H Tomlins
Traumatic brain injury (TBI) results in direct vascular disruption, triggering edema, and reduction in cerebral blood flow. Therefore, understanding the pathophysiology of brain microcirculation following TBI is important for the development of effective therapies. Optical coherence angiography (OCA) is a promising tool for evaluating TBI in rodent models. We develop an approach to OCA that uses the heart-rate frequency to discriminate between static tissue and vasculature. This method operates on intensity data and is therefore not phase sensitive...
December 2017: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/29210077/estimating-verbal-fluency-and-naming-ability-from-the-test-of-premorbid-functioning-and-demographic-variables-regression-equations-derived-from-a-regional-uk-sample
#15
Toni-Marie Jenkinson, Steven Muncer, Miranda Wheeler, Don Brechin, Stephen Evans
OBJECTIVES: Neuropsychological assessment requires accurate estimation of an individual's premorbid cognitive abilities. Oral word reading tests, such as the test of premorbid functioning (TOPF), and demographic variables, such as age, sex, and level of education, provide a reasonable indication of premorbid intelligence, but their ability to predict other related cognitive abilities is less well understood. This study aimed to develop regression equations, based on the TOPF and demographic variables, to predict scores on tests of verbal fluency and naming ability...
December 6, 2017: British Journal of Clinical Psychology
https://www.readbyqxmd.com/read/29209266/current-opportunities-for-clinical-monitoring-of-axonal-pathology-in-traumatic-brain-injury
#16
REVIEW
Parmenion P Tsitsopoulos, Sami Abu Hamdeh, Niklas Marklund
Traumatic brain injury (TBI) is a multidimensional and highly complex disease commonly resulting in widespread injury to axons, due to rapid inertial acceleration/deceleration forces transmitted to the brain during impact. Axonal injury leads to brain network dysfunction, significantly contributing to cognitive and functional impairments frequently observed in TBI survivors. Diffuse axonal injury (DAI) is a clinical entity suggested by impaired level of consciousness and coma on clinical examination and characterized by widespread injury to the hemispheric white matter tracts, the corpus callosum and the brain stem...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/29207908/a-scoping-review-of-pain-in-children-following-traumatic-brain-injury-is-there-more-than-headache
#17
Vivian Kwan, Mai Vo, Melanie Noel, Keith Owen Yeates
AIM: Headache is a common source of pain in children following traumatic brain injury (TBI); however, relatively little is known about non-headache pain in this pediatric population. The present review seeks to map the extant literature to determine the prevalence, characteristics, and impact of non-headache pain in children following TBI of all severities. RESULTS: Of 109 studies published on pain in children following a TBI, 95 (87%) were focused exclusively on headache pain and only 14 (13%) reported on non-headache pain or overall pain, with half (n = 7) in the form of case studies...
December 5, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29207487/diffuse-axonal-injury-and-oxidative-stress-a-comprehensive-review
#18
REVIEW
Alessandro Frati, Daniela Cerretani, Anna Ida Fiaschi, Paola Frati, Vittorio Gatto, Raffaele La Russa, Alessandro Pesce, Enrica Pinchi, Alessandro Santurro, Flavia Fraschetti, Vittorio Fineschi
Traumatic brain injury (TBI) is one of the world's leading causes of morbidity and mortality among young individuals. TBI applies powerful rotational and translational forces to the brain parenchyma, which results in a traumatic diffuse axonal injury (DAI) responsible for brain swelling and neuronal death. Following TBI, axonal degeneration has been identified as a progressive process that starts with disrupted axonal transport causing axonal swelling, followed by secondary axonal disconnection and Wallerian degeneration...
December 2, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29205806/neuroprotection-by-quercetin-via-mitochondrial-function-adaptation-in-traumatic-brain-injury-pgc-1%C3%AE-pathway-as-a-potential-mechanism
#19
Xiang Li, Handong Wang, Guodao Wen, Liwen Li, Yongyue Gao, Zong Zhuang, Mengliang Zhou, Lei Mao, Youwu Fan
The aim of this study was to investigate the neuroprotective effects of quercetin in mouse models of traumatic brain injury (TBI) and the potential role of the PGC-1α pathway in putative neuroprotection. Wild-type mice were randomly assigned to four groups: the sham group, the TBI group, the TBI+vehicle group and the TBI+quercetin group. Quercetin, a dietary flavonoid used as a food supplement, significantly reduced TBI-induced neuronal apoptosis and ameliorated mitochondrial lesions. It significantly accelerated the translocation of PGC-1α protein from the cytoplasm to the nucleus...
December 4, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29204981/neuroprotective-effects-of-oleocanthal-a-compound-in-virgin-olive-oil-in-a-rat-model-of-traumatic-brain-injury
#20
Mesut Mete, Isıl Aydemir, Ulkun Unlu Unsal, Fatih Collu, Gokhan Vatandas, Beyhan Gurcu, Yusuf Kurtulus Duransoy, Fatma Taneli, Mehmet Ibrahim Tugrul, Mehmet Selcuki
AIM: TBI has two distinct phases: primary and secondary injury. Many agents have been used to prevent secondary injury. Oleocanthal (OC) has anti-inflammatory and antioxidant properties similar nonsteroidal anti-inflammatory drug. We evaluated the neuroprotective effects of OC in a rat model of TBI. MATERIAL AND METHODS: Twenty-six adult male, Wistar albino rats were used. The rats were divided into 4 groups. group 1, sham (n = 5). group 2, trauma (n = 5): Rats were treated with 10 mg/kg saline intraperitoneally (IP) twice a day...
November 1, 2017: Turkish Neurosurgery
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