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https://www.readbyqxmd.com/read/27913754/neurological-manifestations-in-children-with-dengue-fever-an-indian-perspective
#1
Archan Sil, Tamoghna Biswas, Moumita Samanta, Mithun Chandra Konar, Arun Kumar De, Jasodhara Chaudhuri
Ours was a descriptive observational cross-sectional study carried out in a tertiary care hospital in eastern India over a period of one year to study the profile of neurological involvement in paediatric dengue patients. Of 71 laboratory-confirmed cases, 20 (28.17%) had neurological involvement. Common forms observed were acute encephalopathy (40%), encephalitis (30%), pure motor weakness (15%), transverse myelitis (5%), acute disseminated encephalomyelitis (5%) and Guillain-Barré syndrome (5%). The dengue IgM antibody could be detected in the cerebrospinal fluid of only two patients with encephalitis...
December 2, 2016: Tropical Doctor
https://www.readbyqxmd.com/read/27913223/hepatitis-e-virus-infection-beyond-the-liver
#2
REVIEW
S Pischke, J Hartl, S D Pas, A W Lohse, B C Jacobs, A A van der Eijk
Hepatitis E virus (HEV) infections are not limited to the liver but may also affect other organs. Several diseases, including Guillain-Barré syndrome, neuralgic amyotrophy, glomerulonephritis, cryoglobulinemia, pancreatitis, lymphoma, thrombopenia, meningitis, thyreoiditis and myocarditis have been observed in the context of hepatitis E. To date the definite pathophysiological links between HEV and extrahepatic manifestations are not yet established. However, it is suggested that HEV-infection might be causative based on serological studies, case series, in vitro data and animal models...
November 29, 2016: Journal of Hepatology
https://www.readbyqxmd.com/read/27911897/heterologous-protection-against-asian-zika-virus-challenge-in-rhesus-macaques
#3
Matthew T Aliota, Dawn M Dudley, Christina M Newman, Emma L Mohr, Dane D Gellerup, Meghan E Breitbach, Connor R Buechler, Mustafa N Rasheed, Mariel S Mohns, Andrea M Weiler, Gabrielle L Barry, Kim L Weisgrau, Josh A Eudailey, Eva G Rakasz, Logan J Vosler, Jennifer Post, Saverio Capuano, Thaddeus G Golos, Sallie R Permar, Jorge E Osorio, Thomas C Friedrich, Shelby L O'Connor, David H O'Connor
BACKGROUND: Zika virus (ZIKV; Flaviviridae, Flavivirus) was declared a public health emergency of international concern by the World Health Organization (WHO) in February 2016, because of the evidence linking infection with ZIKV to neurological complications, such as Guillain-Barre Syndrome in adults and congenital birth defects including microcephaly in the developing fetus. Because development of a ZIKV vaccine is a top research priority and because the genetic and antigenic variability of many RNA viruses limits the effectiveness of vaccines, assessing whether immunity elicited against one ZIKV strain is sufficient to confer broad protection against all ZIKV strains is critical...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27909576/zika-antiviral-chemotherapy-identification-of-drugs-and-promising-starting-points-for-drug-discovery-from-an-fda-approved-library
#4
Bruno S Pascoalino, Gilles Courtemanche, Marli T Cordeiro, Laura H V G Gil, Lucio Freitas-Junior
Background The recent epidemics of Zika virus (ZIKV) implicated it as the cause of serious and potentially lethal congenital conditions such microcephaly and other central nervous system defects, as well as the development of the Guillain-Barré syndrome in otherwise healthy patients. Recent findings showed that anti-Dengue antibodies are capable of amplifying ZIKV infection by a mechanism similar to antibody-dependent enhancement, increasing the severity of the disease. This scenario becomes potentially catastrophic when the global burden of Dengue and the advent of the newly approved anti-Dengue vaccines in the near future are taken into account...
2016: F1000Research
https://www.readbyqxmd.com/read/27908907/importance-of-diagnostic-work-up-of-guillain-barr%C3%A3-syndrome-in-pregnancy
#5
Elza Pollak-Christian, Kyong-Soon Lee
We report a full-term neonate presenting with symptomatic congenital cytomegalovirus (CMV) infection with hepatosplenomegaly, 'blueberry muffin' rash, intracranial calcifications, thrombocytopenia and respiratory distress. Maternal history was relevant for Guillain-Barré syndrome (GBS) during the first trimester of pregnancy. CMV infection is an important cause of GBS; thus, women presenting GBS during pregnancy should be screened for CMV infection. If positive, they may benefit from specialised monitoring and treatment in the antenatal period, which may decrease the risk of major neurodevelopmental sequelae of congenital CMV in the neonate...
December 1, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27907966/getting-rid-of-weakness-in-the-icu-an-updated-approach-to-the-acute-management-of-myasthenia-gravis-and-guillain-barr%C3%A3-syndrome
#6
Alexis A Lizarraga, Karlo J Lizarraga, Michael Benatar
After prompt diagnosis, severe myasthenia gravis and Guillain-Barré syndrome (GBS) usually require management in the intensive care unit. In the myasthenic patient, recognition of precipitating factors is paramount, and frequent monitoring of bulbar, upper airway, and/or respiratory muscle strength is needed to identify impending myasthenic crisis. Noninvasive ventilation can be attempted prior to intubation and mechanical ventilation in the setting of respiratory failure. Cholinesterase inhibitors should be discontinued, but resumed prior to extubation, and steroid dosage could be increased once the airway is secured...
December 2016: Seminars in Neurology
https://www.readbyqxmd.com/read/27904236/influence-of-exercise-on-patients-with-guillain-barr%C3%A3-syndrome-a-systematic-review
#7
Nicholas Simatos Arsenault, Pierre-Olivier Vincent, Bai He Shen Yu, Robin Bastien, Aaron Sweeney
Purpose: To evaluate the effects of exercise interventions on improving physical outcomes in patients with Guillain-Barré syndrome (GBS). Methods: The PubMed database was searched for articles published up to and including February 2015. Randomized controlled trials (RCTs), case reports, and quasi-experimental and single-subject designs published in English-language, peer-reviewed journals that assessed the impact of physical exercise on patients with GBS were included; study quality was assessed using Sackett's rules of evidence...
2016: Physiotherapy Canada. Physiothérapie Canada
https://www.readbyqxmd.com/read/27902933/the-fda-approved-drug-sofosbuvir-inhibits-zika-virus-infection
#8
Kristen M Bullard-Feibelman, Jennifer Govero, Zhe Zhu, Vanessa Salazar, Milena Veselinovic, Michael S Diamond, Brian J Geiss
The rapidly expanding Zika virus (ZIKV) epidemic has affected thousands of individuals with severe cases causing Guillain-Barré syndrome, congenital malformations, and microcephaly. Currently, there is no available vaccine or therapy to prevent or treat ZIKV infection. We evaluated whether sofosbuvir, an FDA-approved nucleotide polymerase inhibitor for the distantly related hepatitis C virus, could have antiviral activity against ZIKV infection. Cell culture studies established that sofosbuvir efficiently inhibits replication and infection of several ZIKV strains in multiple human tumor cell lines and isolated human fetal-derived neuronal stem cells...
November 27, 2016: Antiviral Research
https://www.readbyqxmd.com/read/27902502/zika-virus-and-patient-blood-management
#9
Lawrence T Goodnough, Marisa B Marques
Sporadic Zika virus infections had only occurred in Africa and Asia until an outbreak in Micronesia (Oceania) in 2007. In 2013 to 2014, several outer Pacific Islands reported local outbreaks. Soon thereafter, the virus was likely introduced in Brazil from competing athletes from French Polynesia and other countries that participated in a competition there. Transmission is thought to have occurred through mosquito bites and spread to the immunologically naive population. Being also a flavivirus, the Zika virus is transmitted by the Aedes mosquito that is endemic in South and Central America that is also the vector of West Nile virus, dengue, and chikungunya...
November 29, 2016: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/27901259/neurological-manifestations-of-chikungunya-and-zika-infections
#10
Talys J Pinheiro, Luis F Guimarães, Marcus Tulius T Silva, Cristiane N Soares
The epidemics of Chikungunya virus (CHIKV) and Zika virus (ZIKV) infections have been considered the most important epidemiological occurrences in the Americas. The clinical picture of CHIKV infection is characterized by high fever, exanthema, myalgia, headaches, and arthralgia. Besides the typical clinical picture of CHIKV, atypical manifestations of neurological complications have been reported: meningo-encephalitis, meningoencephalo-myeloradiculitis, myeloradiculitis, myelitis, myeloneuropathy, Guillain-Barré syndrome and others...
November 2016: Arquivos de Neuro-psiquiatria
https://www.readbyqxmd.com/read/27900773/systematic-review-of-immunoglobulin-use-in-paediatric-neurological-and-neurodevelopmental-disorders
#11
REVIEW
Jonathan Gadian, Emma Kirk, Kate Holliday, Ming Lim, Michael Absoud
AIM: A systematic literature review of intravenous immunoglobulin (IVIG) treatment of paediatric neurological conditions was performed to summarize the evidence, provide recommendations, and suggest future research. METHOD: A MEDLINE search for articles reporting on IVIG treatment of paediatric neuroinflammatory, neurodevelopmental, and neurodegenerative conditions published before September 2015, excluding single case reports and those not in English. Owing to heterogeneous outcome measures, meta-analysis was not possible...
November 30, 2016: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/27899230/experimental-zika-virus-infection-induces-spinal-cord-injury-and-encephalitis-in-newborn-swiss-mice
#12
Natália C C A Fernandes, Juliana S Nogueira, Rodrigo A Réssio, Cinthya S Cirqueira, Lidia M Kimura, Karolina R Fernandes, Mariana S Cunha, Renato P Souza, Juliana M Guerra
A widespread epidemic of Zika virus (ZIKV) infection was reported in 2015 in South and Central America, with neurological symptons including meningoencephalitis and Guillain-Barré syndrome in adults, besides an apparent increased incidence of microcephaly in infants born to infected mothers. It is becoming a necessity to have a trustworthy animal model to better understand ZIKV infection. In this study we used newborn white Swiss mice as a model to investigate the ZIKV strain recently isolated in Brazil. ZIKV was inoculated via intracerebral and subcutaneous routes and analysed through gross histopathology and immunohistochemistry...
November 26, 2016: Experimental and Toxicologic Pathology: Official Journal of the Gesellschaft Für Toxikologische Pathologie
https://www.readbyqxmd.com/read/27898552/a-young-woman-with-numbness-in-her-feet
#13
Daniel Pavlik, Michael Huber, Melissa Justice
This article describes a young, otherwise healthy woman who presented to the ED with numbness in her feet and was discharged. Twenty-four hours later, she returned because of difficulty walking; in 48 hours she could not walk without assistance. Although Guillain-Barré syndrome was suspected initially, the patient's weakness, sensory loss, and autonomic dysfunction eventually were diagnosed as transverse myelitis, a myelopathy often associated with infectious or autoimmune diseases. The article describes the presentation, diagnostic evaluation and criteria, treatment, and prognosis of transverse myelitis...
December 2016: JAAPA: Official Journal of the American Academy of Physician Assistants
https://www.readbyqxmd.com/read/27894792/pyruvate-dehydrogenase-e1%C3%AE-deficiency-presenting-as-recurrent-acute-proximal-muscle-weakness-of-upper-and-lower-extremities-in-an-8-year-old-boy
#14
Bülent Kara, Hülya Maraş Genç, Emek Uyur-Yalçın, Ayfer Sakarya-Güneş, Uğur Topçu, Serap Mülayim, Serdar Ceylaner
The mitochondrial pyruvate dehydrogenase enzyme complex (PDHC) plays an important role in aerobic energy metabolism and acid-base equilibrium. PDHC contains of 5 enzymes, 3 catalytic (E1, E2, E3) and 2 regulatory, as well as 3 cofactors and an additional protein (E3-binding protein) encoded by nuclear genes. The clinical presentation of PDHC deficiency ranges from fatal neonatal lactic acidosis to chronic neurologic dysfunction without lactic acidosis. Paroxysmal neurologic problems such as intermittent ataxia, episodic weakness, exercise-induced dystonia and recurrent demyelination may also be seen although they are rare...
November 9, 2016: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/27894447/differentiating-familial-neuropathies-from-guillain-barr%C3%A3-syndrome
#15
REVIEW
Brett J Bordini, Priya Monrad
Differentiating Guillain-Barré syndrome (GBS) from inherited neuropathies and other acquired peripheral neuropathies requires understanding the atypical presentations of GBS and its variant forms, as well as historical and physical features suggestive of inherited neuropathies. GBS is typically characterized by the acute onset of ascending flaccid paralysis, areflexia, and dysesthesia secondary to peripheral nerve fiber demyelination. The disorder usually arises following a benign gastrointestinal or respiratory illness, is monophasic, reaches a nadir with several weeks, and responds to immunomodulatory therapy...
February 2017: Pediatric Clinics of North America
https://www.readbyqxmd.com/read/27893080/travel-associated-zika-virus-disease-acquired-in-the-americas-through-february-2016-a-geosentinel-analysis
#16
Davidson H Hamer, Kira A Barbre, Lin H Chen, Martin P Grobusch, Patricia Schlagenhauf, Abraham Goorhuis, Perry J J van Genderen, Israel Molina, Hilmir Asgeirsson, Phyllis E Kozarsky, Eric Caumes, Stefan H Hagmann, Frank P Mockenhaupt, Gilles Eperon, Elizabeth D Barnett, Emmanuel Bottieau, Andrea K Boggild, Philippe Gautret, Noreen A Hynes, Susan Kuhn, R Ryan Lash, Karin Leder, Michael Libman, Denis J M Malvy, Cecilia Perret, Camilla Rothe, Eli Schwartz, Annelies Wilder-Smith, Martin S Cetron, Douglas H Esposito
Background: Zika virus has spread rapidly in the Americas and has been imported into many nonendemic countries by travelers. Objective: To describe clinical manifestations and epidemiology of Zika virus disease in travelers exposed in the Americas. Design: Descriptive, using GeoSentinel records. Setting: 63 travel and tropical medicine clinics in 30 countries. Patients: Ill returned travelers with a confirmed, probable, or clinically suspected diagnosis of Zika virus disease seen between January 2013 and 29 February 2016...
November 22, 2016: Annals of Internal Medicine
https://www.readbyqxmd.com/read/27892990/zika-virus-what-the-otolaryngologist-should-know-a-review
#17
Demetri Arnaoutakis, Tapan Padhya
Importance: Initially discovered in 1947, Zika virus infection received little notoriety as a tropical disease until 2015 when an outbreak of microcephaly cases was reported in Brazil. Zika is a single-stranded RNA arbovirus of the Flaviviridae family. The primary source of infection in humans stems from Aedes aegypti mosquito bites but can also occur through sexual, blood, and perinatal transmission. With expectations that 3 to 4 million people across the Americas will be infected over the next year, the World Health Organization has declared this event a Public Health Emergency of International Concern...
November 17, 2016: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/27888275/acute-disseminated-encephalomyelitis-following-campylobacter-jejuni-gastroenteritis-case-report-and-review-of-the-literature
#18
Simone Marziali, Eliseo Picchi, Francesca Di Giuliano, Simone Altobelli, Giorgia Mataluni, Girolama Marfia, Francesco Garaci, Roberto Floris
We describe a case of a 25-year-old male with a diagnosis of acute disseminated encephalomyelitis (ADEM) following infection with Campylobacter jejuni, which is implicated in various human pathologies regarding the central nervous system (CNS) with acute course like Guillain-Barré syndrome (GBS), Miller-Fisher syndrome (MFS), Bickerstaff's brainstem encephalitis (BEE), acute transverse myelitis (ATM) as well as ADEM. These conditions are caused by cross-reactivity between Campylobacter's epitopes and cells of the CNS that causes an immunomediated inflammatory demyelination of the CNS...
November 25, 2016: Neuroradiology Journal
https://www.readbyqxmd.com/read/27882950/neutralization-mechanism-of-a-highly-potent-antibody-against-zika-virus
#19
Shuijun Zhang, Victor A Kostyuchenko, Thiam-Seng Ng, Xin-Ni Lim, Justin S G Ooi, Sebastian Lambert, Ter Yong Tan, Douglas G Widman, Jian Shi, Ralph S Baric, Shee-Mei Lok
The rapid spread of Zika virus (ZIKV), which causes microcephaly and Guillain-Barré syndrome, signals an urgency to identify therapeutics. Recent efforts to rescreen dengue virus human antibodies for ZIKV cross-neutralization activity showed antibody C10 as one of the most potent. To investigate the ability of the antibody to block fusion, we determined the cryoEM structures of the C10-ZIKV complex at pH levels mimicking the extracellular (pH8.0), early (pH6.5) and late endosomal (pH5.0) environments. The 4...
November 24, 2016: Nature Communications
https://www.readbyqxmd.com/read/27878471/cerebrospinal-fluid-anti-epstein-barr-virus-specific-oligoclonal-igm-and-igg-bands-in-patients-with-clinically-isolated-and-guillain-barr%C3%A3-syndrome
#20
Diana Ferraro, Veronica Galli, Anna Maria Simone, Roberta Bedin, Francesca Vitetta, Elisa Merelli, Paolo Frigio Nichelli, Patrizia Sola
Epstein-Barr virus (EBV) has been implicated in multiple sclerosis (MS) pathogenesis. We aimed to assess the frequency of EBV-specific IgG and IgM oligoclonal bands (OCB) in cerebrospinal fluid (CSF) of 50 patients with clinically isolated syndrome (CIS) and in 27 controls with Guillain-Barré syndrome (GBS). Furthermore, we assessed correlations between the presence of OCB and CIS patients' CSF, MRI, and clinical variables. There was no difference in the proportion of CIS and GB patients with positivity for anti-EBV-specific IgG/IgM OCB...
November 22, 2016: Journal of Neurovirology
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