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https://www.readbyqxmd.com/read/28076019/viral-and-prion-infections-of-the-central-nervous-system-radiologic-pathologic-correlation-from-the-radiologic-pathology-archives
#1
Kelly K Koeller, Robert Y Shih
Viral infections of the central nervous system (CNS) range in clinical severity, with the most severe proving fatal within a matter of days. Some of the more than 100 different viruses known to affect the brain and spinal cord are neurotropic with a predilection for producing CNS infection. The host response to viral infection of the CNS is responsible for the pathophysiology and imaging findings seen in affected patients. Viral CNS infections can take the form of meningitis, encephalitis, encephalomyelitis, or, when involving the spinal cord and nerve roots, encephalomyeloradiculitis...
January 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28074532/pathogenesis-of-developmental-anomalies-of-the-central-nervous-system-induced-by-congenital-cytomegalovirus-infection
#2
REVIEW
Hideya Kawasaki, Isao Kosugi, Shiori Meguro, Toshihide Iwashita
In humans, the herpes virus family member cytomegalovirus (CMV) is the most prevalent mediator of intrauterine infection-induced congenital defect. Central nervous system (CNS) dysfunction is a distinguishing symptom of CMV infection, and characterized by ventriculoencephalitis and microglial nodular encephalitis. Reports on the initial distribution of CMV particles and its receptors on the blood brain barrier (BBB) are rare. Nevertheless, several factors are suggested to affect CMV etiology. Viral particle size is the primary factor in determining the pattern of CNS infections, followed by the expression of integrin β1 in endothelial cells, pericytes, meninges, choroid plexus, and neural stem progenitor cells (NSPCs), which are the primary targets of CMV infection...
January 10, 2017: Pathology International
https://www.readbyqxmd.com/read/28071799/seroepidemiological-and-phylogenetic-characterisation-of-neurotropic-enteroviruses-in-ireland-2005-2014
#3
Jorge Abboud Guerra, Allison Waters, Alison Kelly, Ursula Morley, Paul O'Reilly, Edwin O'Kelly, Jonathan Dean, Robert Cunney, Piaras O'Lorcain, Suzanne Cotter, Jeff Connell, Joanne O'Gorman, William W Hall, Michael Carr, Cillian F De Gascun
Enteroviruses (EVs) are associated with a broad spectrum of clinical presentation, including aseptic meningitis (AM), encephalitis, hand, foot and mouth disease, acute flaccid paralysis and acute flaccid myelitis. Epidemics occur sporadically and are associated with increased cases of AM in children. The present study describes the seroepidemiological analysis of circulating EVs in Ireland from 2005-2014 and phylogenetic characterisation of echovirus 30 (E-30), enterovirus A71 (EV-A71) and enterovirus D68 (EV-D68)...
January 10, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28063937/cerebrospinal-fluid-metabolomic-profiling-in-tuberculous-and-viral-meningitis-screening-potential-markers-for-differential-diagnosis
#4
Zihui Li, Boping Du, Jing Li, Jinli Zhang, Xiaojing Zheng, Hongyan Jia, Aiying Xing, Qi Sun, Fei Liu, Zongde Zhang
BACKGROUND: Tuberculous meningitis (TBM) is the most severe and frequent form of central nervous system tuberculosis. The current lack of efficient diagnostic tests makes it difficult to differentiate TBM from other common types of meningitis, especially viral meningitis (VM). Metabolomics is an important tool to identify disease-specific biomarkers. However, little metabolomic information is available on adult TBM. METHODS: We used (1)H nuclear magnetic resonance-based metabolomics to investigate the metabolic features of the CSF from 18 TBM and 20 VM patients...
January 4, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28059631/acute-necrotizing-encephalopathy-causing-human-bocavirus
#5
Ayse Betul Ergul, Umit Altug, Kursad Aydin, Ahmet Sami Guven, Yasemin Altuner Torun
Acute necrotizing encephalopathy is characterized by multiple, symmetrical lesions involving the thalamus, brainstem, cerebellum, and white matter and develops secondarily to viral infections. Influenza viruses are the most common etiological agents. Here, we present the first case of acute necrotizing encephalopathy to develop secondarily to human bocavirus. A 3-year-old girl presented with fever and altered mental status. She had had a fever, cough, and rhinorrhea for five days. The patient was admitted to the intensive care unit with an initial diagnosis of encephalitis when vomiting, convulsions, and loss of consciousness developed...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28045630/outcomes-of-vestibular-schwannoma-surgery-among-the-elderly
#6
Michael J Sylvester, Darshan N Shastri, Viral M Patel, Milap D Raikundalia, Jean Anderson Eloy, Soly Baredes, Yu-Lan Mary Ying
Objective To compare comorbidities and in-hospital complications between elderly and nonelderly patients undergoing vestibular schwannoma (VS) surgery. To examine average length of stay (LOS) and hospital charges among elderly patients. Study Design Population-based inpatient registry analysis. Setting Academic medical center. Subjects and Methods Retrospective analysis of the National Inpatient Sample for patients undergoing VS surgery from 2002 to 2010: 4137 patients met inclusion criteria, with 519 (12.5%) in the elderly cohort (≥65 years)...
January 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28041546/-epidural-abscess-secondary-to-sinusitis
#7
Pernille Henriksen, Noushin Yazdanyar, Lisbeth Samsø Schmidt, Marianne Sjølin Frederiksen
Approximately 0.5-2% of upper viral infections are com-licated by secondary acute bacterial sinusitis and may in rare cases evolve into more serious complications such as meningitis and intracranial abscess. Symptoms are often subtle and nonspecific as fever, headache, scalp tenderness, nausea and altered mental status. In this case report of a 12-year-old boy with an epidural abscess secondary to sinusitis we intend to increase the knowledge to these rare, but potentially life-threatening complications to ensure the optimal and timely treatment...
December 26, 2016: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/28017244/toll-like-receptor-3-and-viral-infections-of-nervous-system
#8
REVIEW
Rajesh Verma, Kavita Bharti
Members of the toll-like receptor (TLR) family are pathogen recognition receptors that recognize pathogen-associated molecular patterns. TLRs mediate the modulation of innate immune responses and influence the development of adaptive immunity. TLR3 is the first identified antiviral TLR that recognizes dsRNA. TLR3 plays a central role in the activation of host immune responses to viral infections and shows detrimental or protective effects against various viral infections. Several viruses are neurotropic and can infect the central nervous system, leading to neuropathologies such as encephalitis, encephalopathy, meningitis, and neuritis...
January 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28011278/molecular-characterization-of-echovirus-13-uncovering-high-genetic-diversity-and-identification-of-new-genotypes-in-pakistan
#9
Shahzad Shaukat, Mehar Angez, Tariq Mahmood, Muhammad Masroor Alam, Salmaan Sharif, Adnan Khurshid, Muhammad Suleman Rana, Syed Sohail Zahoor Zaidi
Echovirus 13 (E-13) is reported worldwide and is mostly related to aseptic meningitis but it is also isolated from cases of acute flaccid paralysis (AFP). Unfortunately, all studies conducted on non polio enterovirus in Pakistan only confirm E-13 isolation based on microneutralization assay but there is lack of molecular epidemiological data on this serotype. In this study, 113 stool samples were collected from AFP patients during 2008-2010. An enterovirus primer mediated real-time reverse transcriptase polymerase chain reaction, a standard microneutralization assay and sequencing of viral protein 1 gene (VP1) identified the predominant serotype E-13...
December 20, 2016: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/27983492/meningitis-associated-with-simultaneous-infection-by-multiple-dengue-virus-serotypes-in-children-brazil
#10
Paula Eillanny Silva Marinho, Danilo Bretas de Oliveira, Talitah Michel Sanchez Candiani, Ana Paula Correia Crispim, Pedro Paulo Martins Alvarenga, Fabrizia Cristina Dos Santos Castro, Jonatas Santos Abrahão, Maria Rios, Roney Santos Coimbra, Erna Geessien Kroon
To determine the causes of viral meningitis, we analyzed 22 cerebrospinal fluid samples collected during the 2014-2015 dengue epidemics in Brazil. We identified 3 serotypes of dengue virus (DENV-1, -2, and -3), as well as co-infection with 2 or 3 serotypes. We also detected the Asian II genotype of DENV-2.
January 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/27919639/-evaluation-of-an-xpert-ev-cepheid-%C3%A2-molecular-diagnostic-technique-for-enteroviral-meningitis
#11
Natalia Alonso Pérez, Belén Sagastizabal Cardelus, Luis Manuel Prieto Tato, Sara Guillén Martín, Ana González Torralba, Isabel García Bermejo, José Tomás Ramos Amador
INTRODUCTION: Polymerase chain reaction (PCR) assays have shown to be useful and quick for the diagnosis of enterovirus in aseptic meningitis. The aim of our study was to analyse the changes in clinical practice after the introduction of a real-time polymerase chain reaction (RT-PCR) technique using the Xpert EV (Cepheid(®)) assay for the qualitative detection of enterovirus RNA in cerebrospinal fluid specimens from children with suspected viral meningitis. METHODS: A retrospective study was performed in children older than 1year, diagnosed with enterovirus meningitis in a third level hospital from November 2006 to February 2013...
December 2, 2016: Anales de Pediatría: Publicación Oficial de la Asociación Española de Pediatría (A.E.P.)
https://www.readbyqxmd.com/read/27917434/what-factors-determine-the-need-for-lumbar-puncture-in-patients-with-fever-and-headache
#12
Ki Joong Kim, Jun Hwi Cho, Joong Bum Moon, Myoung Cheol Shin, Taek Geun Ohk, Hui Young Lee, Chan Woo Park
INTRODUCTION: We performed this study to search for clinical features and laboratory parameters that could facilitate the process of selection of patients who should receive lumbar punctures among those presenting with headache and fever. METHODS: We selected all patients aged ≥ 16 years who presented to and received lumbar puncture in the emergency department (ED) of Kangwon National University Hospital, South Korea, between 2011 and 2013. Patients who received a lumbar puncture were divided into two groups - patients diagnosed with viral meningitis and those that were not...
December 5, 2016: Singapore Medical Journal
https://www.readbyqxmd.com/read/27914455/mediators-and-biomarkers-of-inflammation-in-meningitis-cytokine-and-peptidome-profiling-of-cerebrospinal-fluid
#13
A A Belogurov, O M Ivanova, Y A Lomakin, R H Ziganshin, M I Vaskina, V D Knorre, E A Klimova, A G Gabibov, V T Ivanov, V M Govorun
Differential diagnosis of bacterial and viral meningitis is an urgent problem of the modern clinical medicine. Early and accurate detection of meningitis etiology largely determines the strategy of its treatment and significantly increases the likelihood of a favorable outcome for the patient. In the present work, we analyzed the peptidome and cytokine profiles of cerebrospinal fluid (CSF) of 17 patients with meningitis of bacterial and viral etiology and of 20 neurologically healthy controls. In addition to the identified peptides (potential biomarkers), we found significant differences in the cytokine status of the CSF of the patients...
November 2016: Biochemistry. Biokhimii︠a︡
https://www.readbyqxmd.com/read/27907970/-epidemiology-etiology-and-clinical-picture-of-enteroviral-meningitis-in-children-in-south-moravia
#14
Adriana Braunová, Petra Rainetová, Lenka Krbková, Iva Čapovová, Lenka Klapačová, Václav Musil, Martin Musílek, Jana Bednářová
OBJECTIVES: Enteroviruses (EVs) are the most common cause of aseptic viral meningitis. In some cases, they can cause severe meningoencephalitis and acute flaccid paralysis - an association with some virulent serotypes. The objectives were to describe the epidemiological situation of EV meningitis in children in South Moravia, to elucidate the etiology including the incidence of virulent serotypes and to evaluate the clinical presentation. MATERIAL AND METHODS: A total of 88 children with EV meningitis were prospectively evaluated...
September 2016: Klinická Mikrobiologie a Infekc̆ní Lékar̆ství
https://www.readbyqxmd.com/read/27905621/-parechovirus-as-etiologic-agent-of-meningitis-and-or-sepsis-like-illness-in-infants
#15
Valentina Gutiérrez, Constanza Martínez-Valdebenito, Luisa Montecinos, Romina Alarcón, Constanza Gárate, Marcela Ferrés
INTRODUCTION: Human parechovirus (HPeV) belongs to the Picornaviridae family and has been described in viral meningoencephalitis and sepsis like illness in infants. Until now, 16 genotypes have been recognized, the most common are HPEV 1, 2 and 3; type 3 is most severe. AIMS: To estimate the frequency of HPEV etiology in viral meningoencephalitis and sepsis in infants and characterize clinical and molecular aspects of infection. METHODS: Between October 2013 and March 2015 we collected CSF samples, plasma, nasopharyngeal swabs and/or stools of patients younger than two years with suspected sepsis and/or viral meningitis...
August 2016: Revista Chilena de Infectología: órgano Oficial de la Sociedad Chilena de Infectología
https://www.readbyqxmd.com/read/27882774/usefulness-of-copeptin-as-a-potential-biomarker-in-tbe
#16
Piotr Czupryna, Anna Moniuszko-Malinowska, Adam Garkowski, Justyna Dunaj, Renata Swierzbinska, Sławomir Pancewicz, Joanna Gościk, Maciej Kondrusik, Sambor Grygorczuk, Joanna Zajkowska
OBJECTIVE: The aim of the study was to evaluate the usefulness of copeptin for differentiation of hyponatremia in the course of tick-borne encephalitis (TBE) and for being a prognostic marker of the severity of TBE. MATERIALS AND METHODS: One hundred and fourteen patients with TBE were included in the study. The control group consisted of 62 patients diagnosed with viral meningitis. RESULTS: Copeptin concentration did not differ in patients with hyponatremia and normonatremia...
December 8, 2016: Biomarkers: Biochemical Indicators of Exposure, Response, and Susceptibility to Chemicals
https://www.readbyqxmd.com/read/27878586/-parainfectious-optic-neuritis-with-macular-infiltrate-in-neisseria-meningitidis-b-meningitis
#17
A Chronopoulos, F Hoogewoud, H Steffen, G Thumann
OBJECTIVE: We report on the case of a young immunocompetent female patient with parainfectious optic neuritis and macular inflitrate due to Neisseria meningitidis B meningitis. METHOD: Case report RESULTS: A 22-year-old female patient was admitted to the emergency department for intensive care treatment with a strong suspicion of meningitis. Clinical and serological parameters were indicative of a bacterial genesis of the meningitis. By analysis of the cerebrospinal fluid (CSF) Neisseria meningitidis type B could be detected...
November 23, 2016: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/27854417/meningitis-and-encephalitis-in-poland-in-2014
#18
Iwona Paradowska-Stankiewicz, Anna Piotrowska
AIM OF THE STUDY: The aim of this study was to assess the epidemiology of meningitis and/or encephalitis in Poland in 2014. INTRODUCTION: In the last three years in Poland, about 3000 cases of meningitis and/or encephalitis of viral or bacterial etiology were recorded annually. MATERIALS AND METHODS: Assessment of the epidemiological situation of meningitis and/or encephalitis in Poland in 2014, was based on the results of the analysis of epidemiological reports sent to the NIZP-PZH by the Regional Sanitary-Epidemiological Stations published in the annual bulletin “Infectious diseases and poisonings in Poland in 2014” and “Preventive immunizations in Poland in 2014”...
2016: Przegla̧d Epidemiologiczny
https://www.readbyqxmd.com/read/27851426/1791-an-unusual-case-of-fusobacterium-necrophorum-brain-abscess-misdiagnosed-as-viral-meningitis
#19
Sarah Beshay, Saivaralaxmi Munaganti, Aditya Uppalapati
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27843698/procalcitonin-in-cerebrospinal-fluid-in-meningitis-a-prospective-diagnostic-study
#20
Imanda M E Alons, Rolf J Verheul, Irma Kuipers, Korné Jellema, Marieke J H Wermer, Ale Algra, Gabriëlle Ponjee
OBJECTIVES: Bacterial meningitis is a severe but treatable condition. Clinical symptoms may be ambiguous and current diagnostics lack sensitivity and specificity, complicating diagnosis. Procalcitonin (PCT) is a protein that is elevated in serum in bacterial infection. We aimed to assess the value of PCT in cerebrospinal fluid (CSF) in the diagnosis of bacterial meningitis. METHODS: We included patients with bacterial meningitis, both community acquired and post neurosurgery...
November 2016: Brain and Behavior
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