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https://www.readbyqxmd.com/read/28431035/medical-symptom-validity-test-performance-following-moderate-severe-traumatic-brain-injury-expectations-based-on-orientation-log-classification
#1
Stephen N Macciocchi, Ronald T Seel, Angela Yi, Sarah Small
Objective: This study examined performance on the Medical Symptom Validity test (MSVT) during acute rehabilitation for moderate-severe traumatic brain injury (TBI) stratified by Orientation Log (O-Log) scores. Method: Participants were 77 prospectively enrolled persons who sustained moderate-severe TBI and were acutely hospitalized secondary to the cognitive, medical and physical sequelae of their TBI. Participants were administered neuropsychological metrics, the O-Log and the MSVT a mean of 44 days post injury...
May 1, 2017: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/28430697/abusive-head-trauma-and-mortality-an-analysis-from-an-international-comparative-effectiveness-study-of-children-with-severe-traumatic-brain-injury
#2
Nikki Miller Ferguson, Ajit Sarnaik, Darryl Miles, Nadeem Shafi, Mark J Peters, Edward Truemper, Monica S Vavilala, Michael J Bell, Stephen R Wisniewski, James F Luther, Adam L Hartman, Patrick M Kochanek
OBJECTIVES: Small series have suggested that outcomes after abusive head trauma are less favorable than after other injury mechanisms. We sought to determine the impact of abusive head trauma on mortality and identify factors that differentiate children with abusive head trauma from those with traumatic brain injury from other mechanisms. DESIGN: First 200 subjects from the Approaches and Decisions in Acute Pediatric Traumatic Brain Injury Trial-a comparative effectiveness study using an observational, cohort study design...
April 20, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28430672/lamotrigine-uses-in-psychiatric-practice-beyond-bipolar-prophylaxis-a-hope-or-hype
#3
Ahmed Naguy, Najah Al-Enezi
BACKGROUND: Lamotrigine (LAM), an antiepileptic, with panoply of indications and uses in neurology, is FDA approved, in psychiatry, for bipolar prophylaxis. Apart from this indication, trend of its use in psychiatry is on the rise addressing a multitude of disorders. STUDY QUESTION: LAM remains one of only few psychotropic drugs with antiglutamate activity. This might render LAM a potential therapeutic option in treatment-resistant major psychiatric disorders. We reviewed LAM pharmacology and its diverse indications while examining the extant evidence...
April 19, 2017: American Journal of Therapeutics
https://www.readbyqxmd.com/read/28428014/concussion-induces-focal-and-widespread-neuromorphological-changes
#4
Dafna Sussman, Leodante da Costa, Mallar M Chakravarty, Elizabeth W Pang, Margot J Taylor, Benjamin T Dunkley
Concussion induces transient, and oftentimes chronic, lingering impairment to mental functioning, which must be driven by some underlying neurobiological perturbation - however, the physical changes related to sequelae are difficult to detect. Previous imaging studies on concussion have focused on alterations to cortical anatomy, but few have examined the cerebrum, subcortex, and cerebellum. Here, we present an analysis of these structures in a single cohort (all males, 21 patients, 22 controls) using MRI and diagnosed with a single-concussive episode in the acute and sub-acute stages of injury...
April 17, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28427893/study-of-acetylcholinesterase-activity-and-apoptosis-in-sh-sy5y-cells-and-mice-exposed-to-ethanol
#5
Wenjun Sun, Liangjing Chen, Wei Zheng, Xiaoan Wei, Wenqi Wu, Ellen G Duysen, Wei Jiang
Ethanol is one of the most commonly abused psychotropic substances with deleterious effects on the central nervous system. Ethanol exposure during development results in the loss of neurons in brain regions and when exposed to ethanol cultured cells undergo apoptosis. To date no information is available on whether abnormally high AChE activity is characteristic of apoptosis in animals exposed to ethanol. The aims of the present study were to determine whether induction of AChE activity is associated with ethanol-induced apoptosis and to explore the mechanism of enhanced AChE activity induced by ethanol...
April 17, 2017: Toxicology
https://www.readbyqxmd.com/read/28424326/anti-tau-antibody-administration-increases-plasma-tau-in-transgenic-mice-and-patients-with-tauopathy
#6
Kiran Yanamandra, Tirth K Patel, Hong Jiang, Suzanne Schindler, Jason D Ulrich, Adam L Boxer, Bruce L Miller, Diana R Kerwin, Gilbert Gallardo, Floy Stewart, Mary Beth Finn, Nigel J Cairns, Philip B Verghese, Ilana Fogelman, Tim West, Joel Braunstein, Grace Robinson, Jennifer Keyser, Joseph Roh, Stephanie S Knapik, Yan Hu, David M Holtzman
Tauopathies are a group of disorders in which the cytosolic protein tau aggregates and accumulates in cells within the brain, resulting in neurodegeneration. A promising treatment being explored for tauopathies is passive immunization with anti-tau antibodies. We previously found that administration of an anti-tau antibody to human tau transgenic mice increased the concentration of plasma tau. We further explored the effects of administering an anti-tau antibody on plasma tau. After peripheral administration of an anti-tau antibody to human patients with tauopathy and to mice expressing human tau in the central nervous system, there was a dose-dependent increase in plasma tau...
April 19, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28424016/acute-brain-injury-following-illicit-drug-abuse-in-adolescent-and-young-adult-patients-spectrum-of-neuroimaging-findings
#7
Shai Shrot, Andrea Poretti, Elizabeth W Tucker, Bruno P Soares, Thierry Agm Huisman
The use of illicit drugs is currently a major medical problem among adolescents. Several illicit drugs have a high abuse potential and can be neurotoxic causing high morbidity and mortality. The clinical manifestation of adolescents with acute drug-induced neurotoxicity is often characterized by non-specific symptoms and findings. Early diagnosis is important to prevent death and permanent long-term neurological impairments. We report on clinical and neuroimaging findings in five adolescents with acute brain imaging following illicit drug intoxication to highlight the role of neuroimaging findings in the diagnostic work-up of pediatric acute drug-induced neurotoxicity...
April 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28422899/variation-in-adult-traumatic-brain-injury-outcomes-in-the-united-states
#8
Nathaniel H Greene, Mary A Kernic, Monica S Vavilala, Frederick P Rivara
OBJECTIVE: To ascertain the degree of variation, by state of acute care hospitalization, in outcomes associated with traumatic brain injury (TBI) in an adult population. SETTING: All acute care hospitals in 21 states in the United States in the year 2010. PARTICIPANTS: Adult (> 18 years) patients (N = 95 546) admitted to a hospital with a moderate or severe TBI. DESIGN: Retrospective cohort study using data from State Inpatient Databases from Agency for Healthcare Research and Quality's Healthcare Cost and Utilization Project...
April 18, 2017: Journal of Head Trauma Rehabilitation
https://www.readbyqxmd.com/read/28422893/do-concussive-symptoms-really-resolve-in-young-children
#9
Coco O Bernard, Jennie L Ponsford, Audrey McKinlay, Dean McKenzie, David Krieser
OBJECTIVES: To examine the frequency and nature of postconcussive symptoms (PCSs) and behavioral outcomes in young children following mild traumatic brain injury (mTBI) or concussion. SETTING: Emergency department. PARTICIPANTS: Children aged 2 to 12 years presenting with either a concussion or minor bodily injury (control). OUTCOME MEASUREMENT: Parent ratings of PCS were obtained within 72 hours of injury, at 1 week, and 1, 2, and 3 months postinjury using a comprehensive PCS checklist...
April 18, 2017: Journal of Head Trauma Rehabilitation
https://www.readbyqxmd.com/read/28421878/cerebrovascular-injury-in-cryptococcal-meningitis
#10
Ajay Kumar Mishra, Vanjare Harshad Arvind, Divya Muliyil, Cijoy K Kuriakose, Anu Anna George, Reka Karuppusami, Ronald Albert Benton Carey, Sunithi Mani, Samuel George Hansdak
Background Cryptococcal meningitis continues to be one of the common causes of chronic central nervous system infection worldwide. Individuals with cryptococcal meningitis can occasionally present with small vessel vasculitis causing infarcts primarily in the basal ganglia, internal capsule, and thalamus. Literature regarding patterns of cerebrovascular injury among patients with cryptococcal meningitis is scanty, and outcome following these vascular involvements is unknown. Aim To study the clinical profile, imaging findings, and details of vascular territory involved among patients admitted with cryptococcal meningitis and central nervous system infarct in a tertiary care center from India...
January 1, 2017: International Journal of Stroke: Official Journal of the International Stroke Society
https://www.readbyqxmd.com/read/28421541/systemic-inflammation-as-a-driver-of-brain-injury-the-astrocyte-as-an-emerging-player
#11
Bruna Bellaver, João Paulo Dos Santos, Douglas Teixeira Leffa, Larissa Daniele Bobermin, Paola Haack Amaral Roppa, Iraci Lucena da Silva Torres, Carlos-Alberto Gonçalves, Diogo Onofre Souza, André Quincozes-Santos
Severe systemic inflammation has strong effects on brain functions, promoting permanent neurocognitive dysfunction and high mortality rates. Additionally, hippocampal damage seems to be directly involved in this process and astrocytes play an important role in neuroinflammation and in the neuroimmune response. However, the contribution of the astrocytes to the pathology of acute brain dysfunction is not well understood. Recently, our group established a protocol for obtaining astrocyte cultures from mature brain to allow the characterization of these cells and their functions under pathologic conditions...
April 18, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28421173/cerebral-autoregulation-brain-injury-and-the-transitioning-premature-infant
#12
REVIEW
Zachary A Vesoulis, Amit M Mathur
Improvements in clinical management of the preterm infant have reduced the rates of the two most common forms of brain injury, such as severe intraventricular hemorrhage and white matter injury, both of which are contributory factors in the development of cerebral palsy. Nonetheless, they remain a persistent challenge and are associated with a significant increase in the risk of adverse neurodevelopment outcomes. Repeated episodes of ischemia-reperfusion represent a common pathway for both forms of injury, arising from discordance between systemic blood flow and the innate regulation of cerebral blood flow in the germinal matrix and periventricular white matter...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28419985/erythropoietin-derived-peptide-protects-against-acute-lung-injury-after-rat-traumatic-brain-injury
#13
Yuan Liu, Junyu Lu, Xiaoya Wang, Liu Chen, Su Liu, Zhiren Zhang, Wei Yao
BACKGROUND: Traumatic brain injury (TBI) can be complicated by TBI-triggered acute lung injury (ALI), in which inflammation plays a central role. It has been reported that an Erythropoietin-derived peptide (pHBSP) was able to ameliorate TBI; however, its function in TBI-caused ALI has not been reported yet. METHODS: In this study, we studied the effect of pHBSP on TBI-caused ALI by using a weight-drop induced TBI model. At 8 h and 24 h post-TBI, pulmonary edema (PE) and bronchoalveolar lavage fluid (BALF) proteins were measured, and haematoxylin and eosin (H&E) staining of lung sections was carried out...
April 14, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28419573/impella-2-5-initiated-prior-to-unprotected-left-main-pci-in-acute-myocardial-infarction-complicated-by-cardiogenic-shock-improves-early-survival
#14
Perwaiz M Meraj, Rajkumar Doshi, Theodore Schreiber, Brijeshwar Maini, William W O'Neill
OBJECTIVES: To assess post-procedural outcomes when Impella 2.5 percutaneous left ventricular assist device (pLVAD) support is initiated either prior to or after percutaneous coronary intervention (PCI) on unprotected left main coronary artery (ULMCA) culprit lesion in the context of acute myocardial infarction cardiogenic shock (AMICS). BACKGROUND: Initiation of Impella 2.5 pLVAD prior to PCI is associated with significant survival benefit in the setting of AMICS...
April 17, 2017: Journal of Interventional Cardiology
https://www.readbyqxmd.com/read/28417489/management-of-septic-emboli-in-patients-with-infectious-endocarditis
#15
Seyed Hossein Aalaei-Andabili, Tomas Martin, Phillip Hess, Brian Hoh, Meshka Anderson, Charles T Klodell, Thomas M Beaver
BACKGROUND AND AIM: Septic emboli (SE) associated with infectious endocarditis (IE) can result in splenic abscesses and infectious intracranial aneurysms (IIA). We investigated the impact of SE on patient outcomes following surgery for IE. METHOD: From January-2000 to October-2015, all patients with surgical IE (n = 437) were evaluated for incidence and management of SE. RESULTS: Overall SE was found in 46/437 (10.52%) patients (n = 17 spleen, 13 brain, and 16 both)...
April 17, 2017: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/28417449/citicoline-pharmacological-and-clinical-review-2016-update
#16
REVIEW
J J Secades
This review is based on the previous one published in 2010 -Secades JJ. Citicoline: pharmacological and clinical review, 2010 update. Rev Neurol 2011; 52 (Suppl 2): S1-62-, incorporating 183 new references, having all the information available to facilitate the access to the information in one document. This review is focused on the main indications of the drug, as acute stroke and its sequelae, including the cognitive impairment, and traumatic brain injury and its sequelae. There are retrieved the most important experimental and clinical data in both indications...
December 23, 2016: Revista de Neurologia
https://www.readbyqxmd.com/read/28417146/repeated-mild-traumatic-brain-injury-in-female-rats-increases-lipid-peroxidation-in-neurons
#17
Nathanael J Yates, Stephen Lydiard, Brooke Fehily, Gillian Weir, Aaron Chin, Carole A Bartlett, Jacqueline Alderson, Melinda Fitzgerald
Negative outcomes of mild traumatic brain injury (mTBI) can be exacerbated by repeated insult. Animal models of repeated closed-head mTBI provide the opportunity to define acute pathological mechanisms as the number of mTBI increases. Furthermore, little is known about the effects of mTBI impact site, and how this may affect brain function. We use a closed head, weight drop model of mTBI that allows head movement following impact, in adult female rats to determine the role of the number and location of mTBI on brain pathology and behaviour...
April 17, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28416497/prognostication-in-critically-ill-patients-with-severe-traumatic-brain-injury-the-tbi-prognosis-multicentre-feasibility-study
#18
Alexis F Turgeon, François Lauzier, Ryan Zarychanski, Dean A Fergusson, Caroline Léger, Lauralyn A McIntyre, Francis Bernard, Andrea Rigamonti, Karen Burns, Donald E Griesdale, Robert Green, Damon C Scales, Maureen O Meade, Martin Savard, Michèle Shemilt, Jérôme Paquet, Jean-Luc Gariépy, André Lavoie, Kesh Reddy, Draga Jichici, Giuseppe Pagliarello, David Zygun, Lynne Moore
OBJECTIVE: Severe traumatic brain injury is a significant cause of morbidity and mortality in young adults. Assessing long-term neurological outcome after such injury is difficult and often characterised by uncertainty. The objective of this feasibility study was to establish the feasibility of conducting a large, multicentre prospective study to develop a prognostic model of long-term neurological outcome in critically ill patients with severe traumatic brain injury. DESIGN: A prospective cohort study...
April 17, 2017: BMJ Open
https://www.readbyqxmd.com/read/28415724/pharmacological-inhibition-of-src-kinase-protects-against-acute-kidney-injury-in-a-murine-model-of-renal-ischemia-reperfusion
#19
Chongxiang Xiong, Xiujuan Zang, Xiaoxu Zhou, Lirong Liu, Monica V Masucci, Jinhua Tang, Xuezhu Li, Na Liu, George Bayliss, Ting C Zhao, Shougang Zhuang
Activation of Src kinase has been implicated in the pathogenesis of acute brain, liver, and lung injury. However, the role of Src in acute kidney injury (AKI) remains unestablished. To address this, we evaluated the effects of Src inhibition on renal dysfunction and pathological changes in a murine model of AKI induced by ischemia/reperfusion (I/R). I/R injury to the kidney resulted in increased Src phosphorylation at tyrosine 416 (activation). Administration of PP1, a highly selective Src inhibitor, blocked Src phosphorylation, improved renal function and ameliorated renal pathological damage...
March 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28414059/a-mouse-ocular-explant-model-that-enables-the-study-of-living-optic-nerve-head-events-after-acute-and-chronic-intraocular-pressure-elevation-focusing-on-retinal-ganglion-cell-axons-and-mitochondria
#20
Elizabeth C Kimball, Mary E Pease, Matthew R Steinhart, Ericka N Oglesby, Ian Pitha, Cathy Nguyen, Harry A Quigley
We developed an explant model of the mouse eye and optic nerve that facilitates the study of retinal ganglion cell axons and mitochondria in the living optic nerve head (ONH) in an ex vivo environment. Two transgenic mouse strains were used, one expressing yellow fluorescent protein in selected axons and a second strain expressing cyan fluorescent protein in all mitochondria. We viewed an explanted mouse eye and optic nerve by laser scanning microscopy at and behind the ONH, the site of glaucoma injury. Explants from previously untreated mice were studied with the intraocular pressure (IOP) set artificially at normal or elevated levels for several hours...
April 14, 2017: Experimental Eye Research
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