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https://www.readbyqxmd.com/read/28930022/diagnosis-of-fatal-human-case-of-st-louis-encephalitis-virus-infection-by-metagenomic-sequencing-california-2016
#1
Charles Y Chiu, Lark L Coffey, Jamie Murkey, Kelly Symmes, Hannah A Sample, Michael R Wilson, Samia N Naccache, Shaun Arevalo, Sneha Somasekar, Scot Federman, Doug Stryke, Paul Vespa, Gary Schiller, Sharon Messenger, Romney Humphries, Steve Miller, Jeffrey D Klausner
We used unbiased metagenomic next-generation sequencing to diagnose a fatal case of meningoencephalitis caused by St. Louis encephalitis virus in a patient from California in September 2016. This case is associated with the recent 2015-2016 reemergence of this virus in the southwestern United States.
October 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28930003/angiostrongylus-cantonensis-eosinophilic-meningitis-in-an-infant-tennessee-usa
#2
Tim Flerlage, Yvonne Qvarnstrom, John Noh, John P Devincenzo, Arshia Madni, Bindiya Bagga, Nicholas D Hysmith
Angiostrongylus cantonensis, the rat lungworm, is the most common infectious cause of eosinophilic meningoencephalitis worldwide. This parasite is endemic to Southeast Asia and the Pacific Islands, and its global distribution is increasing. We report A. cantonensis meningoencephalitis in a 12-month-old boy in Tennessee, USA, who had not traveled outside of southwestern Tennessee or northwestern Mississippi.
October 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28927775/-pasteurella-multocida-meningoencephalitis-in-a-14-year-old-child
#3
L Kuoch, F Villedieu, G Favaretto, J Toulouse, L Mignot, M Jokic
Pasteurella multocida is generally responsible for local infections through animal bites. It can be a cause of meningitis, which tends to affect people at the extreme ages of life or suffering from immunodeficiency. A 14-year-old teenager was hospitalized with typical signs of bacterial meningitis. P. multocida was evidenced in the cerebrospinal fluid. Progression was marked by a degradation on the 4th day of treatment, despite intravenous antibiotic therapy with third-generation cephalosporin, followed by a single seizure on the 7th day of treatment...
September 15, 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28919350/crystal-structure-of-inositol-1-3-4-5-6-pentakisphosphate-2-kinase-from-cryptococcus-neoformans
#4
Juntaek Oh, Dong-Gi Lee, Yong-Sun Bahn, Sangkee Rhee
The fungal pathogen Cryptococcus neoformans is a causative agent of meningoencephalitis in humans. For its pathogenicity, the inositol polyphosphate biosynthetic pathway plays critical roles. Recently, Ipk1 from C. neoformans (CnIpk1) was identified as an inositol 1,3,4,5,6-pentakisphosphate 2-kinase that catalyzes the phosphorylation of IP5 to form IP6, a substrate for subsequent reaction to produce inositol pyrophosphates, such as PP-IP5/IP7. Furthermore, it was shown that deletion of IPK1 significantly reduces the virulence of C...
September 15, 2017: Journal of Structural Biology
https://www.readbyqxmd.com/read/28919331/production-and-characterization-of-monoclonal-antibodies-against-cathepsin-b-and-cathepsin-b-like-proteins-of-naegleria-fowleri
#5
Gi-Sang Seong, Hae-Jin Sohn, Heekyoung Kang, Ga-Eun Seo, Jong-Hyun Kim, Ho-Joon Shin
Naegleria fowleri causes fatal primary amoebic meningoencephalitis (PAM) in humans and experimental animals. In previous studies, cathepsin B (nfcpb) and cathepsin B-like (nfcpb-L) genes of N. fowleri were cloned, and it was suggested that refolding rNfCPB and rNfCPB-L proteins could play important roles in host tissue invasion, immune response evasion and nutrient uptake. In this study, we produced anti-NfCPB and anti-NfCPB-L monoclonal antibodies (McAb) using a cell fusion technique, and observed their immunological characteristics...
September 14, 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/28904730/-tuberculous-meningoencephalitis-revealed-by-psychiatric-disorders-about-a-case
#6
Khalid Mouhadi, Tarik Boulahri, Abdelhadi Rouimi
Tuberculous meningoencephalitis is fairly frequent in endemic countries and it is the most severe form of tuberculosis. Therapeutic failure is common because of diagnostic delay. This delay is primarily due to a wide clinical polymorphism and, in particular, to misleading forms. We here report a rare clinical case of tuberculous meningitis in a patient in prodromal phase of psychosis.
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28886496/convulsive-status-epilepticus-in-a-quaternary-hospital-paediatric-intensive-care-unit-picu-in-south-africa-an-8-year-review
#7
Yavini Reddy, Yusentha Balakrishna, Lawrence Mubaiwa
PURPOSE: Convulsive status epilepticus (CSE) is associated with a high morbidity and mortality. This study aimed to describe the clinical profile, aetiology, neuroimaging and EEG findings as well as outcome of children with CSE in Sub-Saharan Africa. METHODS: This was a retrospective analysis of electronic records of children with CSE admitted to the Paediatric Intensive Care Unit (PICU) over an 8-year period from January 2007 to December 2014. RESULTS: Seventy six patients were admitted to the PICU with CSE and 55(72%) had refractory status epilepticus...
August 2, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28873445/deleterious-effect-of-usutu-virus-on-human-neural-cells
#8
Sara Salinas, Orianne Constant, Caroline Desmetz, Jonathan Barthelemy, Jean-Marc Lemaitre, Ollivier Milhavet, Nicolas Nagot, Vincent Foulongne, Florence E Perrin, Juan-Carlos Saiz, Sylvie Lecollinet, Philippe Van de Perre, Yannick Simonin
In the last decade, the number of emerging Flaviviruses described worldwide has increased considerably. Among them Zika virus (ZIKV) and Usutu virus (USUV) are African mosquito-borne viruses that recently emerged. Recently, ZIKV has been intensely studied due to major outbreaks associated with neonatal death and birth defects, as well as neurological symptoms. USUV pathogenesis remains largely unexplored, despite significant human and veterinary associated disorders. Circulation of USUV in Africa was documented more than 50 years ago, and it emerged in Europe two decades ago, causing massive bird mortality...
September 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28868189/spontaneous-rupture-of-a-secondary-pituitary-abscess-causing-acute-meningoencephalitis-case-report-and-literature-review
#9
Giovanni Muscas, Francesco Iacoangeli, Laura Lippa, Biagio R Carangelo
BACKGROUND: Pituitary abscess (PA) is an uncommon finding that is rarely diagnosed preoperatively. If not properly treated it is associated with high morbidity and mortality rates. Nowadays standard diagnostic procedures allow early detection and successful treatment of this lesion in a high number of cases and mortality has been significantly reduced in recent years. PA arising de novo in a healthy gland are defined as primary, whereas those complicating a pre-existing disease of the hypophysis are called secondary abscesses...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28855484/recognition-of-cryptococcus-neoformans-by-pattern-recognition-receptors-and-its-role-in-host-defense-to-this-infection
#10
Ko Sato, Kazuyoshi Kawakami
Cryptococcus neoformans is a yeast-type opportunistic fungal pathogen with a capsule structure consisting of polysaccharides, such as glucuronoxylomannan and galactoxylomannan, and infects the lungs via an air-borne route. Most healthy individuals undergo asymptomatic infection with granulomatous lesions in the lungs caused by C. neoformans. However, immunocompromised hosts with severely impaired cellular immunity, such as those with acquired immune deficiency syndrome (AIDS), often suffer from disseminated infection into the central nervous system, leading to life-threatening meningoencephalitis...
2017: Medical Mycology Journal
https://www.readbyqxmd.com/read/28854990/the-uniform-cortex-sign-a-diagnostic-sign-of-diffuse-cortical-injury-on-mr-imaging-of-the-brain-at-1-5-t
#11
Andrew Leung, Apurva Patel, Basem Bahakeem, David Pelz, Donald Lee, Manas Sharma
BACKGROUND: To introduce the "uniform cortex sign" (UCS) and evaluate its performance as a diagnostic test for the presence of diffuse cortical injury (DCI). METHODS: The study was approved by our institutional review board. Three experienced neuroradiologists were given a tutorial on the UCS. They were subsequently presented with 14 cases (7 control patients and 7 DCI patients with the UCS) in random order and asked to determine whether the UCS was present. Each case consisted of selected DWI, T2-weighted, and FLAIR images from unenhanced 1...
August 31, 2017: Canadian Journal of Neurological Sciences. le Journal Canadien des Sciences Neurologiques
https://www.readbyqxmd.com/read/28840541/drugs-in-clinical-development-for-fungal-infections
#12
Maria F Gonzalez-Lara, Jose Sifuentes-Osornio, Luis Ostrosky-Zeichner
Despite increasing rates of invasive fungal infections being reported globally, only a single antifungal drug has been approved during the last decade. Resistance, toxicity, drug interactions and restricted routes of administration remain unresolved issues. This review focuses on new antifungal compounds which are currently in various clinical phases of development. We discuss two azoles with a tetrazole moiety that allows selective activity against the fungal CYP: VT-1161 for Candida infections and VT-1129 for cryptococcal meningoencephalitis...
August 24, 2017: Drugs
https://www.readbyqxmd.com/read/28835663/choroid-plexitis-and-ependymitis-by-magnetic-resonance-imaging-are-biomarkers-of-neuronal-damage-and-inflammation-in-hiv-negative-cryptococcal-meningoencephalitis
#13
Dima A Hammoud, Eman Mahdi, Anil A Panackal, Paul Wakim, Virginia Sheikh, Irini Sereti, Bibi Bielakova, John E Bennett, Peter R Williamson
CNS cryptococcal meningoencephalitis in both HIV positive (HIV+) and HIV negative (HIV-) subjects is associated with high morbidity and mortality despite optimal antifungal therapy. We thus conducted a detailed analysis of the MR imaging findings in 45 HIV- and 11 HIV+ patients to identify imaging findings associated with refractory disease. Ventricular abnormalities, namely ependymitis and choroid plexitis were seen in HIV- but not in HIV+ subjects. We then correlated the imaging findings in a subset of HIV- subjects (n = 17) to CSF levels of neurofilament light chain (NFL), reflective of axonal damage and sCD27, known to best predict the presence of intrathecal T-cell mediated inflammation...
August 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28831740/expression-of-mir-155-associated-with-toll-like-receptors-3-7-and-9-transcription-in-the-olfactory-bulbs-of-cattle-naturally-infected-with-bhv5
#14
Bruna R S M Oliveira, Flavia V Vieira, Dielson de S Vieira, Sergio E L da Silva, Roberto Gameiro, Eduardo F Flores, Tereza C Cardoso
Bovine herpesvirus 5 (BHV5) infection of young cattle is frequently associated with fatal neurological disease and, as such, represents an attractive model for studying the pathogenesis of viral-induced meningoencephalitis. Following replication in the nasal mucosa, BHV5 invades the central nervous system (CNS) mainly through the olfactory pathway. The innate immune response triggered by the host face to virus replication through the olfactory route is poorly understood. Recently, an upregulation of conserved pathogen-associated molecular pattern, as Toll-like receptors (TLRs), has been demonstrated in the CNS of BHV5 experimentally infected cows...
August 22, 2017: Journal of Neurovirology
https://www.readbyqxmd.com/read/28830430/tick-borne-encephalitis-in-a-naturally-infected-sheep
#15
Brigitte Böhm, Benjamin Schade, Benjamin Bauer, Bernd Hoffmann, Donata Hoffmann, Ute Ziegler, Martin Beer, Christine Klaus, Herbert Weissenböck, Jens Böttcher
BACKGROUND: Tick-borne encephalitis (TBE) is the most important viral tick borne zoonosis in Europe. In Germany, about 250 human cases are registered annually, with the highest incidence reported in the last years coming from the federal states Bavaria and Baden-Wuerttemberg. In veterinary medicine, only sporadic cases in wild and domestic animals have been reported; however, a high number of wild and domestic animals have tested positive for the tick-borne encephalitis virus (TBEV) antibody...
August 22, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28829736/case-report-zika-virus-meningoencephalitis-and-myelitis-and-associated-magnetic-resonance-imaging-findings
#16
Faruq Pradhan, Joseph D Burns, Ahmed Agameya, Avignat Patel, Mohammad Alfaqih, Juan E Small, Winnie Ooi
Zika virus (ZIKV) has a wide clinical spectrum of associated neurologic disease including microcephaly and Guillain-Barre syndrome but, despite its known neurotropism, ZIKV meningoencephalitis and myelitis have been rare complications. We describe a case of ZIKV meningoencephalitis and probable myelitis and its associated magnetic resonance imaging findings that rapidly resolved during recovery in a previously healthy adult.
August 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28827809/phylogeography-of-angiostrongylus-cantonensis-nematoda-angiostrongylidae-in-southern-china-and-some-surrounding-areas
#17
Jian Peng, Zhang-Ping He, Shuai Zhang, Zhao-Rong Lun, Zhong-Dao Wu, Chia-Kwung Fan, Christopher L Brown, Po-Ching Cheng, Shih-Yi Peng, Ting-Bao Yang
Angiostrongylus cantonensis is of increasing public health importance as the main zoonotic pathogen causing eosinophilic meningitis or meningoencephalitis, which has been documented all over the world. However, there are very limited studies about its phylogeography and spread pattern. In the present study, the phylogeography of A. cantonensis in southern China (including Taiwan) and partial areas of Southeast Asia were studied based on the sequences of complete mitochondrial cytochrome b (Cytb) gene. A total of 520 individuals of A...
August 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28820708/clinical-spectrum-etiology-and-outcome-of-neurological-disorders-in-the-rural-hospital-of-mosango-the-democratic-republic-of-congo
#18
Deby Mukendi, Jean-Roger Lilo Kalo, Alain Mpanya, Luigi Minikulu, Tharcisse Kayembe, Pascal Lutumba, Barbara Barbé, Philippe Gillet, Jan Jacobs, Harry Van Loen, Cedric P Yansouni, François Chappuis, Raffaella Ravinetto, Kristien Verdonck, Marleen Boelaert, Andrea S Winkler, Emmanuel Bottieau
There is little published information on the epidemiology of neurological disorders in rural Central Africa, although the burden is considered to be substantial. This study aimed to investigate the pattern, etiology, and outcome of neurological disorders in children > 5 years and adults admitted to the rural hospital of Mosango, province of Kwilu, Democratic Republic of Congo, with a focus on severe and treatable infections of the central nervous system (CNS). From September 2012 to January 2015, 351 consecutive patients hospitalized for recent and/or ongoing neurological disorder were prospectively evaluated by a neurologist, subjected to a set of reference diagnostic tests in blood or cerebrospinal fluid, and followed-up for 3-6 months after discharge...
August 14, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28811103/identification-and-phylogenetic-position-of-naegleria-spp-from-geothermal-springs-in-italy
#19
M Montalbano Di Filippo, A Novelletto, D Di Cave, F Berrilli
Naegleria spp. are free-living amoebae belonging to the family Vahlkampfiidae, in the class Heterolobosea. Among the recognized species, Naegleria fowleri causes primary amoebic meningoencephalitis (PAM), while two other species, Naegleria australiensis and Naegleria italica, have been reported as pathogenic in experimental animals. Due to the thermotolerance properties of some species, geothermal water sources including hot springs represent suitable habitats for their proliferation. The main aim of this study was a year-round sampling in two geothermal springs in Central Italy, to investigate the presence of Naegleria spp...
August 12, 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/28806453/neurologic-complications-associated-with-the-zika-virus-in-brazilian-adults
#20
Ivan Rocha Ferreira da Silva, Jennifer A Frontera, Ana Maria Bispo de Filippis, Osvaldo Jose Moreira do Nascimento
Importance: There are no prospective cohort studies assessing the incidence and spectrum of neurologic manifestations secondary to Zika virus (ZIKV) infection in adults. Objective: To evaluate the rates of acute ZIKV infection among patients hospitalized with Guillain-Barré syndrome (GBS), meningoencephalitis, or transverse myelitis. Design, Setting, and Participants: A prospective, observational cohort study was conducted at a tertiary referral center for neurological diseases in Rio de Janeiro, Brazil, between December 5, 2015, and May 10, 2016, among consecutive hospitalized adults (>18 years of age) with new-onset acute parainfectious or neuroinflammatory disease...
August 14, 2017: JAMA Neurology
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