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Adult traumatic brain injury

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https://www.readbyqxmd.com/read/27903281/improving-the-clinical-management-of-traumatic-brain-injury-through-the-pharmacokinetic-modeling-of-peripheral-blood-biomarkers
#1
Aaron Dadas, Jolewis Washington, Nicola Marchi, Damir Janigro
BACKGROUND: Blood biomarkers of neurovascular damage are used clinically to diagnose the presence severity or absence of neurological diseases, but data interpretation is confounded by a limited understanding of their dependence on variables other than the disease condition itself. These include half-life in blood, molecular weight, and marker-specific biophysical properties, as well as the effects of glomerular filtration, age, gender, and ethnicity. To study these factors, and to provide a method for markers' analyses, we developed a kinetic model that allows the integrated interpretation of these properties...
November 30, 2016: Fluids and Barriers of the CNS
https://www.readbyqxmd.com/read/27903275/cell-cycle-inhibition-reduces-inflammatory-responses-neuronal-loss-and-cognitive-deficits-induced-by-hypobaria-exposure-following-traumatic-brain-injury
#2
Jacob W Skovira, Junfang Wu, Jessica J Matyas, Alok Kumar, Marie Hanscom, Shruti V Kabadi, Raymond Fang, Alan I Faden
BACKGROUND: Traumatic brain injury (TBI) patients in military settings can be exposed to prolonged periods of hypobaria (HB) during aeromedical evacuation. Hypobaric exposure, even with supplemental oxygen to prevent hypoxia, worsens outcome after experimental TBI, in part by increasing neuroinflammation. Cell cycle activation (CCA) after TBI has been implicated as a mechanism contributing to both post-traumatic cell death and neuroinflammation. Here, we examined whether hypobaric exposure in rats subjected to TBI increases CCA and microglial activation in the brain, as compared to TBI alone, and to evaluate the ability of a cyclin-dependent kinase (CDK) inhibitor (CR8) to reduce such changes and improve behavioral outcomes...
December 1, 2016: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/27901414/cognitive-deficits-and-inflammatory-response-resulting-from-mild-to-moderate-traumatic-brain-injury-in-rats-are-exacerbated-by-repeated-pre-exposure-to-an-innate-stress-stimulus
#3
Michaël Ogier, Amor Belmeguenai, Thomas Lieutaud, Béatrice Georges, Sandrine Bouvard, Emilie Carré, Frédéric Canini, Laurent Bezin
Traumatic brain injury (TBI) is common in both military and civilian populations, and often results in neurobehavioral sequelae that impair quality of life in both patients and their family. Although individuals who are chronically exposed to stress are more likely to experience TBI, it is still unknown whether pre-injury stress influences the outcome after TBI. The present study tested whether behavioral and cognitive long-term outcome after TBI in rats is affected by prior exposure to an innate stress stimulus...
November 30, 2016: Journal of Neurotrauma
https://www.readbyqxmd.com/read/27899434/development-of-cgrp-dependent-pain-and-headache-related-behaviours-in-a-rat-model-of-concussion-implications-for-mechanisms-of-post-traumatic-headache
#4
Dara Bree, Dan Levy
BACKGROUND AND OBJECTIVE: Posttraumatic headache (PTH) is one of the most common, debilitating and difficult symptoms to manage after a mild traumatic brain injury, or concussion. However, the mechanisms underlying PTH remain elusive, in part due to the lack of a clinically relevant animal model. Here, we characterized for the first time, headache and pain-related behaviours in a rat model of concussion evoked by a mild closed head injury (mCHI) - the major type of military and civilian related trauma associated with PTH - and tested responses to current and novel headache therapies...
November 29, 2016: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/27894562/todd-s-paresis-in-acute-mild-head-trauma
#5
Alan Cowley, David Wright, Thomas Breen, Richard Lyon
We present the case of an adult male who sustained Todd's paresis after a traumatically induced seizure in a patient with an isolated facial injury. The precipitating event was head trauma from a golf club. The patient had no previous history of seizures and went on to make a complete neurologic recovery with no cerebral pathology noted. A literature review suggests that Todd's paresis after trauma is very rare as opposed to occurring in the medical or long-term brain injury settings. Although the authors acknowledge that it may occur in trauma, the awareness within the prehospital setting is sufficiently rare for this case report to be of interest to prehospital clinicians; it is important prehospital clinicians are aware of this condition...
November 2016: Air Medical Journal
https://www.readbyqxmd.com/read/27893670/epidemiology-and-clinical-characteristics-of-traumatic-brain-injury-in-lebanon-a-systematic-review
#6
Hussein Abou-Abbass, Hisham Bahmad, Hiba Ghandour, Jawad Fares, Rayyan Wazzi-Mkahal, Basel Yacoub, Hala Darwish, Stefania Mondello, Hayat Harati, Mazen J El Sayed, Hani Tamim, Firas Kobeissy
BACKGROUND: Traumatic brain injury (TBI) is a debilitating medical and emerging public health problem that is affecting people worldwide due to a multitude of factors including both domestic and war-related acts. The objective of this paper is to systematically review the status of TBI in Lebanon - a Middle Eastern country with a weak health system that was chartered by several wars and intermittent outbursts of violence - in order to identify the present gaps in knowledge, direct future research initiatives and to assist policy makers in planning progressive and rehabilitative policies...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27893618/early-resuscitation-with-lyophilized-plasma-provides-equal-neuroprotection-compared-with-fresh-frozen-plasma-in-a-large-animal-survival-model-of-traumatic-brain-injury-and-hemorrhagic-shock
#7
Ihab Halaweish, Ted Bambakidis, Vahagn C Nikolian, Patrick Georgoff, Peter Bruhn, Patryk Piascik, Lisa Buckley, Ashok Srinivasan, Baoling Liu, Yongqing Li, Hasan B Alam
BACKGROUND: Combined traumatic brain injury (TBI) and hemorrhagic shock (HS) is highly lethal. In previous models of combined TBI + HS, we showed that early resuscitation with fresh frozen plasma (FFP) improves neurologic outcomes. Delivering FFP, however, in austere environments is difficult. Lyophilized plasma (LP) is a logistically superior alternative to FFP, but data are limited regarding its efficacy for treatment of TBI. We conducted this study to determine the safety and long-term outcomes of early treatment with LP in a large animal model of TBI + HS...
December 2016: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/27891725/cognitive-task-demands-and-discourse-performance-after-traumatic-brain-injury
#8
Lindsey Byom, Lyn S Turkstra
BACKGROUND: Social communication problems are common in adults with traumatic brain injury (TBI), particularly problems in spoken discourse. Social communication problems are thought to reflect underlying cognitive impairments. AIMS: To measure the contribution of two cognitive processes, executive functioning (EF) and theory of mind (ToM), to the communication of adults with TBI, and to investigate the relationships between discourse performance and potential communication partners' perceptions...
November 27, 2016: International Journal of Language & Communication Disorders
https://www.readbyqxmd.com/read/27886529/autobiographical-and-episodic-memory-deficits-in-mild-traumatic-brain-injury
#9
Jeffrey D Wammes, Tyler J Good, Myra A Fernandes
Those who have suffered a concussion, otherwise known as a mild traumatic brain injury (mTBI), often complain of lingering memory problems. However, there is little evidence in the behavioral literature reliably demonstrating memory deficits. Thus, in the present study, cognitive profiles including measures of general executive functioning and processing speed, as well as episodic and semantic memory were collected in younger and older adult participants with or without a remote (>1year prior to testing) mTBI...
November 22, 2016: Brain and Cognition
https://www.readbyqxmd.com/read/27884460/endogenous-spinal-cord-stem-cells-in-multiple-sclerosis-and-its-animal-model
#10
Ruxandra Covacu, Lou Brundin
The adult mammalian spinal cord (SC) harbors neural stem cells (NSCs). The SC-NSCs are mostly quiescent during physiological conditions but are quickly activated in traumatic injury models. The SC-NSCs generate mostly glia, but are able to differentiate into neurons when affected by favourable conditions. An example is the inflammatory milieu in the SC of rat EAE, where the SC-NSCs migrate into demyelinated lesions and give rise to both glia and neurons. In MS, cells with progenitor phenotypes accumulate in inflammatory lesions both in brain and SC, but the extent to which these cells contribute to repair remains to be revealed...
November 15, 2016: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/27881344/-value-of-urinary-liver-fatty-acid-binding-protein-in-assessing-severity-of-brain-trauma-and-predicting-acute-kidney-injury
#11
Guang-Yong Wu, Kai Zhuang, Yu Liu, Zhi-Fei Wang
OBJECTIVE: To assess the value of urinary liver-type fatty acid-binding protein (L-FABP) in early assessment of the severity of traumatic brain injury and in predicting the occurrence of acute kidney injury (AKI) following the brain injury. METHODS: Sixty-five patients with traumatic brain injury patients were divided into 4 groups according to their Glasgow coma scale (GCS) scores. Blood and urine samples were collected at 2, 6, 12, 24, 48 and 72 h after the injury to detect serum creatinine (SCr) level using biochemical analyzer and urinary L-FABP using enzyme-linked immunosorbent assay (ELISA), with samples from 15 healthy adults as controls...
November 20, 2016: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/27878815/interventions-to-reduce-cognitive-impairments-following-critical-illness-a-topical-systematic-review
#12
REVIEW
H K Nedergaard, H I Jensen, P Toft
BACKGROUND: Critical illness is associated with cognitive impairments. Effective treatment or prevention has not been established. The aim of this review was to create a systematic summary of the current evidence concerning clinical interventions during intensive care admission to reduce cognitive impairments after discharge. METHODS: Medline, Embase, Cochrane Central, PsycInfo and Cinahl were searched. Inclusion criteria were studies assessing the effect of interventions during intensive care admission on cognitive function in adult patients...
November 22, 2016: Acta Anaesthesiologica Scandinavica
https://www.readbyqxmd.com/read/27878771/growth-hormone-deficiency-and-hypopituitarism-in-adults-after-complicated-mild-traumatic-brain-injury
#13
Stefania Giuliano, Serafina Talarico, Lucia Bruno, Francesco Beniamino Nicoletti, Claudio Ceccotti, Antonino Belfiore
PURPOSE: Traumatic brain injury is considered the main cause of hypopituitarism in adults, and GH deficiency appears to be the most frequent pituitary deficit. Most of the available studies have included all degrees of severity of trauma. We aimed to assess pituitary function and GH deficiency in adult patients at different time lengths after complicated mild TBI according to Glasgow Coma Scale. We also aimed to evaluate whether mild TBI patients with GH deficiency had developed alterations in the glycolipid profile...
November 23, 2016: Endocrine
https://www.readbyqxmd.com/read/27874023/methylphenidate-and-memory-and-attention-adaptation-training-for-persistent-cognitive-symptoms-after-traumatic-brain-injury-a-randomized-placebo-controlled-trial
#14
Brenna C McDonald, Laura A Flashman, David B Arciniegas, Robert J Ferguson, Li Xing, Jaroslaw Harezlak, Gwen C Sprehn, Flora M Hammond, Arthur C Maerlender, Carrie L Kruck, Karen L Gillock, Kim Frey, Rachel N Wall, Andrew J Saykin, Thomas W McAllister
The purpose of this multicenter, prospective, randomized, placebo-controlled study was to evaluate and compare the efficacy of two cognitive rehabilitation interventions (Memory and Attention Adaptation Training (MAAT) and Attention Builders Training (ABT)), with and without pharmacologic enhancement (ie, with methylphenidate (MPH) or placebo), for treating persistent cognitive problems after traumatic brain injury (TBI). Adults with a history of TBI at least four months prior to study enrollment with either objective cognitive deficits or subjective cognitive complaints were randomized to receive MPH or placebo and MAAT or ABT, yielding four treatment combinations: MAAT/MPH (N=17), ABT/MPH (N=19), MAAT/placebo (N=17), and ABT/placebo (N=18)...
November 22, 2016: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/27873129/expression-of-dixdc1-and-its-role-in-astrocyte-proliferation-after-traumatic-brain-injury
#15
Hongjian Lu, Rui Jiang, Xuelei Tao, Chengwei Duan, Jie Huang, Wei Huan, Yunfen He, Jianbin Ge, Jianbing Ren
DIX domain containing 1 (Dixdc1), a positive regulator of Wnt signaling pathway, is recently reported to play a role in the neurogenesis. However, the distribution and function of Dixdc1 in the central nervous system (CNS) after brain injury are still unclear. We used an acute traumatic brain injury (TBI) model in adult rats to investigate whether Dixdc1 is involved in CNS injury and repair. Western blot analysis and immunohistochemistry showed a time-dependent up-regulation of Dixdc1 expression in ipsilateral cortex after TBI...
November 21, 2016: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/27872046/pituitary-dysfunction-after-traumatic-brain-injury-are-there-definitive-data-in-children
#16
REVIEW
Paula Casano-Sancho
In the past decade, several studies in adults and children have described the risk of pituitary dysfunction after traumatic brain injury (TBI). As a result, an international consensus statement recommended follow-up on the survivors. This paper reviews published studies regarding hypopituitarism after TBI in children and compares their results. The prevalence of hypopituitarism ranges from 5% to 57%. Growth hormone (GH) and ACTH deficiency are the most common, followed by gonadotropins and thyroid-stimulating hormone...
November 21, 2016: Archives of Disease in Childhood
https://www.readbyqxmd.com/read/27871029/effects-of-cerebrolysin-on-functional-recovery-in-patients-with-severe-disability-after-traumatic-brain-injury-a-historical-cohort-study
#17
Hosseinali Khalili, Amin Niakan, Fariborz Ghaffarpasand
OBJECTIVE: To determine the effects of cerebrolysin on functional recovery in patients with severe disability after traumatic brain injury (TBI). METHODS: This was a retrospective cohort study being performed during a 2-year period in a level I trauma center in Southern Iran including all the adult patients (>16years) with severe disability (GOS of 2 and 3) 1-month after trauma. We excluded those with posttraumatic seizures and those with meningitis or current infections...
November 15, 2016: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/27864958/patient-profiles-of-criminal-behavior-in-the-context-of-traumatic-brain-injury
#18
Kristy S Lane, Maria E St Pierre, Margo D Lauterbach, Vassilis E Koliatsos
Traumatic brain injury (TBI) can lead to significant post-traumatic disturbances in mood and behavior, with the frontal lobes playing a key role in emotional and behavioral regulation. Injury to the frontal lobe can result in disinhibition and aggression which can result in police intervention and/or incarceration. We highlight four adult cases with a history of severe TBI with frontal lobe injuries and the presence of post-TBI criminal behaviors. There is evidence to support an anatomical basis for aggressive behaviors, yet there are other risk factors to be considered...
November 16, 2016: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/27863093/potential-effect-of-mechano-growth-factor-e-domain-peptide-on-axonal-guidance-growth-in-primary-cultured-cortical-neurons-of-rats
#19
Meili Liu, Xufeng Niu, Gang Zhou, Zhengtai Jia, Ping Li, Yubo Fan
Establishing appropriate synaptic connections and plasticity is a critical need in neuronal regeneration and development. Mechano growth factor (MGF) and its C-terminal E-domain peptide with 24 amino acids, MGF-Ct24E, are potential neuroprotective agents. Our preliminary study indicates that Netrin-1 can guide axonal growth and its expression is sensitive to MGF, but how MGF regulates the expression of Netrin-1 and its receptor DCC is still unclear. Here, we investigate the effect of MGF-Ct24E on the expression of Netrin-1 and DCC in primary cultured cortical neurons in vitro and the adult rat brain in vivo...
November 15, 2016: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/27861473/-direct-cost-of-primary-care-of-mild-traumatic-brain-injury-in-adults-by-grd-in-third-level-of-care
#20
Rodolfo Barragán-Hervella, Álvaro Montiel-Jarquín, Iván Limón-Serrano, Víctor Escobedo-Sosa, Jorge Loría-Castellanos
OBJECTIVE: To describe the direct cost of primary health care for patients with mild traumatic head injury in a third level medical facility. DESIGN: Cross-sectional study in 219 patients with mild traumatic brain injury (GRD 090 S06.0 ICD-10 including uncomplicated concussion without complication and increased comorbidity). LOCATION: A medical unit of tertiary care in the State of Puebla, Mexico. MAIN MEASUREMENTS: Direct costs were taken from ACDO...
November 2016: Gaceta Médica de México
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