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https://www.readbyqxmd.com/read/27913960/neuroimaging-abnormalities-in-clade-c-hiv-are-independent-of-tat-genetic-diversity
#1
Robert H Paul, Sarah Phillips, Jacqueline Hoare, David H Laidlaw, Ryan Cabeen, Gayla R Olbricht, Yuqing Su, Dan J Stein, Susan Engelbrecht, Soraya Seedat, Lauren E Salminen, Laurie M Baker, Jodi Heaps, John Joska
Controversy remains regarding the neurotoxicity of clade C human immunodeficiency virus (HIV-C). When examined in preclinical studies, a cysteine to serine substitution in the C31 dicysteine motif of the HIV-C Tat protein (C31S) results in less severe brain injury compared to other viral clades. By contrast, patient cohort studies identify significant neuropsychological impairment among HIV-C individuals independent of Tat variability. The present study clarified this discrepancy by examining neuroimaging markers of brain integrity among HIV-C individuals with and without the Tat substitution...
December 2, 2016: Journal of Neurovirology
https://www.readbyqxmd.com/read/27913939/erratum-to-cerebral-amyloid-angiopathy-in-a-young-man-with-a-history-of-traumatic-brain-injury-a-case-report-and-review-of-the-literature
#2
Yoichi Nakayama, Yohei Mineharu, Yoshiki Arakawa, Sei Nishida, Hirofumi Tsuji, Hidehiko Miyake, Maki Yamaguchi, Sachiko Minamiguchi, Yasushi Takagi, Susumu Miyamoto
No abstract text is available yet for this article.
December 3, 2016: Acta Neurochirurgica
https://www.readbyqxmd.com/read/27913815/-volume-therapy-in-the-severely-injured-patient-recommendations-and-current-guidelines
#3
Sigune Kaske, Marc Maegele
BACKGROUND: Volume therapy is a cornerstone of early resuscitation of severely injured trauma patients, but the optimal strategy remains under debate. A recent Cochrane review could not find evidence for or against early volume replacement or large versus small amounts of fluid. METHOD: Current recommendations and guidelines regarding volume therapy in severely injured patients are summarized based upon the updated European Trauma Guideline on the management of major bleeding and coagulopathy following trauma (fourth edition) and the S3-Guideline Polytrauma and combined with a selective review of the literature...
December 2, 2016: Der Unfallchirurg
https://www.readbyqxmd.com/read/27913796/a-randomized-controlled-trial-of-assisted-intention-monitoring-for-the-rehabilitation-of-executive-impairments-following-acquired-brain-injury
#4
Fergus Gracey, Jessica E Fish, Eve Greenfield, Andrew Bateman, Donna Malley, Gemma Hardy, Jessica Ingham, Jonathan J Evans, Tom Manly
BACKGROUND: Acquired brain injury (ABI) can impair executive function, impeding planning and attainment of intentions. Research shows promise for some goal-management rehabilitation interventions. However, evidence that alerts assist monitoring and completion of day-to-day intentions is limited. OBJECTIVE: To examine the efficacy of brief goal-directed rehabilitation paired with periodic SMS text messages designed to enhance executive monitoring of intentions (assisted intention monitoring [AIM])...
December 2, 2016: Neurorehabilitation and Neural Repair
https://www.readbyqxmd.com/read/27913404/default-mode-network-connectivity-traumatic-brain-injury-and-post-traumatic-amnesia
#5
Erin D Bigler
No abstract text is available yet for this article.
December 2016: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/27913387/using-multivariate-base-rates-to-interpret-low-scores-on-an-abbreviated-battery-of-the-delis-kaplan-executive-function-system
#6
Justin E Karr, Mauricio A Garcia-Barrera, James A Holdnack, Grant L Iverson
OBJECTIVE: Executive function consists of multiple cognitive processes that operate as an interactive system to produce volitional goal-oriented behavior, governed in large part by frontal microstructural and physiological networks. Identification of deficits in executive function in those with neurological or psychiatric conditions can be difficult because the normal variation in executive function test scores, in healthy adults when multiple tests are used, is largely unknown. This study addresses that gap in the literature by examining the prevalence of low scores on a brief battery of executive function tests...
December 1, 2016: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/27913365/portable-mtbi-assessment-using-temporal-and-frequency-analysis-of-speech
#7
Louis Daudet, Nikhil Yadav, Matthew Perez, Christian Poellabauer, Sandra Schneider, Alan Huebner
This paper shows that extraction and analysis of various acoustic features from speech using mobile devices can allow the detection of patterns that could be indicative of neurological trauma. This may pave the way for new types of biomarkers and diagnostic tools. Toward this end, we created a mobile application designed to diagnose mild traumatic brain injuries (mTBI) such as concussions. Using this application, data was collected from youth athletes from 47 high schools and colleges in the the Midwestern United States...
December 1, 2016: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/27912253/sex-and-age-differences-in-epinephrine-mechanisms-and-outcomes-after-brain-injury
#8
William M Armstead, John Riley, Monica S Vavilala
Traumatic brain injury (TBI) is the leading cause of injury related death in children, with boys and children under 4 years having particularly poor outcomes. Cerebral autoregulation is often impaired after TBI, contributing to poor outcome. Cerebral perfusion pressure can be normalized by use of vasoactive agents. The c-Jun-terminal kinase (JNK) isoform of mitogen activated protein kinase (MAPK) produces hemodynamic impairment after TBI, but less is known about its role in histopathology. We investigated whether epinephrine (EPI) age and sex dependently protected cerebral autoregulation and limited histopathology after TBI and the role of JNK in that outcome...
December 2, 2016: Journal of Neurotrauma
https://www.readbyqxmd.com/read/27911768/selective-lesion-of-the-hippocampus-increases-the-differentiation-of-immature-neurons-in-the-monkey-amygdala
#9
Loïc J Chareyron, David G Amaral, Pierre Lavenex
A large population of immature neurons is present in the ventromedial portion of the adult primate amygdala, a region that receives substantial direct projections from the hippocampal formation. Here, we show the effects of neonatal (n = 8) and adult (n = 6) hippocampal lesions on the populations of mature and immature neurons in the paralaminar, lateral, and basal nuclei of the adult monkey amygdala. Compared with unoperated controls (n = 7), the number of mature neurons was about 70% higher in the paralaminar nucleus of neonate- and adult-lesioned monkeys, and 40% higher in the lateral and basal nuclei of neonate-lesioned monkeys...
November 28, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27911398/evaluation-of-bioenergetic-function-in-cerebral-vascular-endothelial-cells
#10
Stephanie L Rellick, Heng Hu, James W Simpkins, Xuefang Ren
The integrity of the blood-brain-barrier (BBB) is critical to prevent brain injury. Cerebral vascular endothelial (CVE) cells are one of the cell types that comprise the BBB; these cells have a very high-energy demand, which requires optimal mitochondrial function. In the case of disease or injury, the mitochondrial function in these cells can be altered, resulting in disease or the opening of the BBB. In this manuscript, we introduce a method to measure mitochondrial function in CVE cells by using whole, intact cells and a bioanalyzer...
November 19, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27911325/autonomic-nervous-system-dysfunctions-as-a-basis-for-a-predictive-model-of-risk-of%C3%A2-neurological-disorders-in-subjects-with%C3%A2-prior-history-of-traumatic-brain-injury-implications-in-alzheimer-s-disease
#11
Lap Ho, Marc Legere, Tongbin Li, Samara Levine, Ke Hao, Breanna Valcarcel, Giulio M Pasinetti
Autonomic dysfunction is very common in patients with dementia, and its presence might also help in differential diagnosis among dementia subtypes. Various central nervous system structures affected in Alzheimer's disease (AD) are also implicated in the central autonomic nervous system (ANS) regulation. For example, deficits in central cholinergic function in AD could likely lead to autonomic dysfunction. We recently developed a simple, readily applicable evaluation for monitoring ANS disturbances in response to traumatic brain injury (TBI)...
December 1, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27911311/risk-factors-and-pathological-substrates-associated-with-agitation-aggression-in-alzheimer-s-disease-a-preliminary-study-using-nacc-data
#12
Simrin Sennik, Tom A Schweizer, Corinne E Fischer, David G Munoz
BACKGROUND: Neuropsychiatric symptoms are common manifestations of Alzheimer's disease (AD). A number of studies have targeted psychosis, i.e., hallucinations and delusions in AD, but few have assessed agitation/aggression in AD. OBJECTIVE: To investigate the risk factors and pathological substrates associated with presence [A(+)] and absence [A(-)] of agitation/aggression (A) in autopsy-confirmed AD. METHODS: Data was collected from the UDS data as of 2015 on the NACC database...
November 28, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27911168/effectiveness-of-communication-specific-coping-intervention-for-adults-with-traumatic-brain-injury-preliminary-results
#13
Jacinta M Douglas, Lucy Knox, Carren De Maio, Helen Bridge, Melanie Drummond, Joanne Whiteoak
People with traumatic brain injury (TBI) describe everyday interactions as a long-term challenge frequently associated with ongoing stress. Communication-specific Coping Intervention (CommCope-I) is a new treatment developed to target coping in the context of communication breakdown. The intervention incorporates principles of cognitive behavioural therapy, self-coaching and context-sensitive social communication therapy. The purpose of this study was to examine the effectiveness of CommCope-I in a group of adults with severe TBI and ongoing functional communication difficulties...
December 2, 2016: Neuropsychological Rehabilitation
https://www.readbyqxmd.com/read/27911071/severe-brain-injury-in-massachusetts-assessing-the-continuum-of-care
#14
Laura Lorenz, Gabrielle Katz
Acquired brain injury (ABI) is a major public health problem in Massachusetts (Hackman et al, 2014) and includes traumatic brain injury (TBI), stroke, ABI-related infectious diseases, metabolic disorders affecting the central nervous system (brain and spinal cord), and brain tumor. Advances in emergency medical care and neurosurgery mean that more people are surviving severe traumatic brain injury (Trexler et al, 2014). Yet many patients with severe TBI in particular, are not receiving inpatient services after initial treatment (Hackman et al, 2014; CDC, 2014) or later that are known to be effective (Malec & Kean, 2015; Lewis & Horn, 2015; BI Commission, 2011; Kolakowsky-Hayner et al, 2000; Interviews)...
December 10, 2015: Issue Brief
https://www.readbyqxmd.com/read/27911066/-conservative-management-of-liver-trauma-and-its-complications-current-gold-standard
#15
R Gander, J A Molino, S Santiago, A Laín, G Guillén, C Giné, G Royo, S López, M Pérez, I Díez, S Cañadas, J Lloret, J Bueno
INTRODUCTION: The liver is the second most frequently involved organ in abdominal trauma in children. The aim of this study was to review the characteristics of liver traumas (LT) in children, its treatment and complications. MATERIAL AND METHODS: Retrospective study of patients with LT treated between 2010-2014. We analyzed data regarding diagnosis, conservative management (CM), complications and treatment. RESULTS: Twenty-four patients of LT with a mean age of 9...
January 25, 2016: Cirugía Pediátrica: Organo Oficial de la Sociedad Española de Cirugía Pediátrica
https://www.readbyqxmd.com/read/27910995/a-diffusion-tensor-magnetic-resonance-imaging-study-of-paediatric-patients-with-severe-non-traumatic-brain-injury
#16
Erika Molteni, Maria A Rocca, Sandra Strazzer, Elisabetta Pagani, Katia Colombo, Filippo Arrigoni, Giacomo Boffa, Massimiliano Copetti, Valentina Pastore, Massimo Filippi
AIM: In this observational study using 3T magnetic resonance imaging (MRI) and diffusion tensor, we investigated the differential effects of pathology, stage of disease, state of consciousness, and aetiology on the modifications of supra- and infra-tentorial white matter tracts and their correlations with clinical scales in paediatric patients with severe non-traumatic brain injury. METHOD: Diffusion tensor magnetic resonance imaging (DT-MRI) was obtained from seven children with unresponsive wakefulness syndrome (UWS; five males, two females; age at event 5y; standard deviation [SD] 2y 1mo), six children in a minimally conscious state (MCS; three males, three females; age at event 5y 10mo; SD 5y), and 10 healthy children as controls(two males, eight females; age at study 10y 10mo; SD 2y 10mo)...
December 2, 2016: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/27910267/the-impact-of-patient-characteristics-on-nurse-practitioners-assessment-and-management-of-adolescent-concussion
#17
Janessa M Graves, Tracy A Klein
BACKGROUND AND PURPOSE: To evaluate the effect of patient sex and type of activity on concussion assessment and management recommendations. METHODS: We administered a web-based survey to all nurse practitioners (NPs) actively licensed in Washington and Oregon. Participants were randomized to view one of four standardized patient scenario videos of an adolescent seeking care for a concussion, portraying the same symptomology but differing by sex and activity (soccer/hiking)...
December 2, 2016: Journal of the American Association of Nurse Practitioners
https://www.readbyqxmd.com/read/27909421/metacognition-and-perspective-taking-in-alzheimer-s-disease-a-mini-review
#18
REVIEW
Elodie Bertrand, Jesus Landeira-Fernandez, Daniel C Mograbi
Metacognition refers to the monitoring and regulation of cognitive processes and its impairment can lead to a lack of self-awareness of deficits, or anosognosia. In the context of different neurological and psychiatric disorders (e.g., traumatic brain injury, dementia, and schizophrenia), studies have shown that patients who present impairments in metacognitive abilities may be able to recognize such difficulties in others and in themselves when exposed to material in a third-person perspective. Considering that metacognitive impairments are an important characteristic of dementia, especially in Alzheimer's Disease (AD), studies of the relationship between metacognition and perspective-taking may be relevant to improve the quality of life of people with dementia...
2016: Frontiers in Psychology
https://www.readbyqxmd.com/read/27909264/global-ablation-of-the-mitochondrial-calcium-uniporter-increases-glycolysis-in-cortical-neurons-subjected-to-energetic-stressors
#19
Matthew Nichols, Pia A Elustondo, Jordan Warford, Aruloli Thirumaran, Evgeny V Pavlov, George S Robertson
The effects of global mitochondrial calcium (Ca(2+)) uniporter (MCU) deficiency on hypoxic-ischemic (HI) brain injury, neuronal Ca(2+) handling, bioenergetics and hypoxic preconditioning (HPC) were examined. Forebrain mitochondria isolated from global MCU nulls displayed markedly reduced Ca(2+) uptake and Ca(2+)-induced opening of the membrane permeability transition pore. Despite evidence that these effects should be neuroprotective, global MCU nulls and wild-type (WT) mice suffered comparable HI brain damage...
December 1, 2016: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/27909194/severity-assessment-and-scoring-for-neurosurgical-models-in-rodents
#20
Sarah Pinkernell, Katrin Becker, Ute Lindauer
The most important acute neurological diseases seen at neurosurgery departments are traumatic brain injuries (TBI) and subarachnoid hemorrhages (SAH). In both diseases the pathophysiological sequela are complex and have not been fully understood up to now, and rodent models using rats and mice are most suitable for the investigation of the pathophysiological details. In both models, surgery is performed under anesthesia, followed by assessment of their functional outcome and behavioral testing before brain tissue analysis after euthanasia...
December 2016: Laboratory Animals
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