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https://www.readbyqxmd.com/read/29351935/an-adult-case-with-shigellosis-associated-encephalopathy
#1
Heleen Joséphine Schuster, Michelle Gompelman, Wim Ang, Albertus Jozef Kooter
A 45-year-old man was presented at the emergency department with altered neurological status and a 1-day history of diarrhoea and fever. The patient's sexual history revealed multiple male partners. As bacterial meningitis or viral encephalitis was suspected, treatment was started accordingly. Cerebrospinal fluid investigations only showed a slight increase of leucocytes, and microbiological studies remained negative. Stool culture revealed Shigella flexneri, after which Shigella-associated encephalopathy was suspected...
January 18, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29343585/rhinovirus-in-febrile-infants-and-risk-of-bacterial-infection
#2
Anne J Blaschke, E Kent Korgenski, Jacob Wilkes, Angela P Presson, Emily A Thorell, Andrew T Pavia, Elizabeth D Knackstedt, Carolyn Reynolds, Jeff E Schunk, Judy A Daly, Carrie L Byington
BACKGROUND: Febrile infants with viral respiratory infections have a reduced risk of bacterial infection compared with virus-negative infants. The risk of concomitant bacterial infection in febrile infants positive for human rhinovirus (HRV) by polymerase chain reaction (PCR) is unknown. METHODS: Infants 1-90 days old managed using the care process model for well-appearing febrile infants and with respiratory viral testing by PCR (RVPCR) in the emergency department or inpatient setting of 22 hospitals in the Intermountain Healthcare system from 2007-2016 were identified...
January 17, 2018: Pediatrics
https://www.readbyqxmd.com/read/29343583/structural-study-of-the-c-terminal-domain-of-non-structural-protein-1-from-japanese-encephalitis-virus
#3
Thanalai Poonsiri, Gareth S A Wright, Michael S Diamond, Lance Turtle, Tom Solomon, Svetlana V Antonyuk
Japanese encephalitis virus (JEV) is a mosquito-transmitted Flavivirus that is closely related to other emerging viral pathogens including dengue, West Nile (WNV) and Zika viruses. JEV infection can result in meningitis and encephalitis, which in severe cases cause permanent brain damage and death. JEV occurs predominantly in rural areas throughout Southeast Asia, the Pacific islands and the Far East, causing around 68,000 cases worldwide each year. In this study, we present a 2.1 Å resolution crystal structure of the C-terminal β-ladder domain of JEV non-structural protein 1 (NS1-C)...
January 17, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29341430/tuberculosis-vaccines-opportunities-and-challenges
#4
REVIEW
Bingdong Zhu, Hazel M Dockrell, Tom H M Ottenhoff, Thomas G Evans, Ying Zhang
Tuberculosis (TB) is a serious disease around the world. Bacillus Calmette-Guérin (BCG) is the only TB vaccine licensed for use in human beings, and is effective in protecting infants and children against severe miliary and meningeal TB. However, BCG's protective efficacy is variable in adults. Novel TB vaccine candidates being developed include whole-cell vaccines (recombinant BCG (rBCG), attenuated Mycobacterium tuberculosis, killed M. tuberculosis or Mycobacterium vaccae), adjuvanted protein subunit vaccines, viral vector-delivered subunit vaccines, plasmid DNA vaccines, RNA-based vaccines etc...
January 17, 2018: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/29338732/transcriptional-profile-and-epstein-barr-virus-infection-status-of-laser-cut-immune-infiltrates-from-the-brain-of-patients-with-progressive-multiple-sclerosis
#5
Caterina Veroni, Barbara Serafini, Barbara Rosicarelli, Corrado Fagnani, Francesca Aloisi
BACKGROUND: It is debated whether multiple sclerosis (MS) might result from an immunopathological response toward an active Epstein-Barr virus (EBV) infection brought into the central nervous system (CNS) by immigrating B cells. Based on this model, a relationship should exist between the local immune milieu and EBV infection status in the MS brain. To test this hypothesis, we analyzed expression of viral and cellular genes in brain-infiltrating immune cells. METHODS: Twenty-three postmortem snap-frozen brain tissue blocks from 11 patients with progressive MS were selected based on good RNA quality and prominent immune cell infiltration...
January 16, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29330273/rheumatoid-disease-an-unusual-cause-of-relapsing-meningoencephalitis
#6
Sian K Alexander, Maria Di Cicco, Ute Pohl, Alberto Cifelli
A 73-year-old man presented with three episodes of dysphasia and disinhibited behaviour, a single seizure and transient ischaemic attack-like events characterised by right arm and/or leg weakness. These episodes were separated by month-long asymptomatic intervals. Medical history included rheumatoid arthritis, which was clinically quiescent on leflunomide.Repeated cerebrospinal fluid examination showed a persistent lymphocytosis with mildly reduced glucose and elevated protein; oligoclonal bands and viral PCR were negative...
January 12, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29327521/cerebrospinal-fluid-a-clinicopathologic-analysis
#7
Asha Shenoy, Heena Desai, Aparna Mandvekar
Context and Objective: This study aims to emphasize the importance of an appropriate CSF examination in patients of suspected CNS disease and the necessity of correlating it with the clinico-radiologic findings which will help in early diagnosis of CNS diseases and guide the further management of the disease. Design: In this 2 year study, 215 CSF samples from patients with clinically suspected diseases of the CNS were studied. The CSF samples were analyzed for gross examination, protein, sugar, adenosine deaminase (ADA) levels, microscopic examination and microbiologic examination...
December 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/29327203/loss-of-cx43-mediated-functional-gap-junction-communication-in-meningeal-fibroblasts-following-mouse-hepatitis-virus-infection
#8
Abhishek Bose, Rahul Basu, Mahua Maulik, Jayasri Das Sarma
Mouse hepatitis virus (MHV) infection causes meningoencephalitis by disrupting the neuro-glial and glial-pial homeostasis. Recent studies suggest that MHV infection alters gap junction protein connexin 43 (Cx43)-mediated intercellular communication in brain and primary cultured astrocytes. In addition to astrocytes, meningeal fibroblasts also express high levels of Cx43. Fibroblasts in the meninges together with the basal lamina and the astrocyte endfeet forms the glial limitans superficialis as part of the blood-brain barrier (BBB)...
January 11, 2018: Molecular Neurobiology
https://www.readbyqxmd.com/read/29307027/does-restricted-diffusion-in-the-splenium-indicate-an-acute-infarct
#9
Zeynep Ezgi Balcik, Songül Senadim, Aslı Keskek, Ayşe Ozudogru, Ayhan Koksal, Aysun Soysal, Dilek Atakli
OBJECTIVE: Although splenial lesions are rare, they are frequently associated with ischemic infarcts, antiepileptic drug toxicity or abrupt discontinuation, viral encephalitis, and metabolic disturbances. In this study, we evaluated clinical and imaging findings and aetiology in 16 patients with splenium lesions. METHODS: Between 2013 and 2017, patients with splenium lesions were examined. Magnetic resonance imaging (MRI) was performed using a 1.5-T unit with fluid attenuation inversion recovery sequences...
January 6, 2018: Acta Neurologica Belgica
https://www.readbyqxmd.com/read/29306909/detection-of-egfr-kras-and-braf-mutations-in-metastatic-cells-from-cerebrospinal-fluid
#10
Diane Frankel, Isabelle Nanni-Metellus, Andrée Robaglia-Schlupp, Pascale Tomasini, Julien Guinde, Fabrice Barlesi, Philippe Astoul, L'Houcine Ouafik, Florent Amatore, Véronique Secq, Elise Kaspi, Patrice Roll
BACKGROUND: In lung adenocarcinoma, molecular profiling of actionable genes has become essential to set up targeted therapies. However, the feasibility and the relevance of molecular profiling from the cerebrospinal fluid (CSF) in the context of meningeal metastasis have been poorly assessed. METHODS: We selected patients with stage IV lung adenocarcinoma harbouring metastatic cells in the CSF after cytological analysis. Seven samples from six patients were eligible for molecular testing of epidermal growth factor receptor (EGFR), V-Ki-ras2 Kirsten rat sarcoma viral oncogene homologue (KRAS), v-Raf murine sarcoma viral oncogene homologue B1 (BRAF) and human epidermal growth factor receptor 2 (HER2) mutations using quantitative polymerase chain reaction (PCR) high-resolution melting curve analysis and Sanger sequencing after DNA extraction from the cell pellets of the CSF...
January 8, 2018: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/29298827/herpes-simplex-virus-infection-in-infants-undergoing-meningitis-evaluation
#11
Andrea T Cruz, Stephen B Freedman, Dina M Kulik, Pamela J Okada, Alesia H Fleming, Rakesh D Mistry, Joanna E Thomson, David Schnadower, Joseph L Arms, Prashant Mahajan, Aris C Garro, Christopher M Pruitt, Fran Balamuth, Neil G Uspal, Paul L Aronson, Todd W Lyons, Amy D Thompson, Sarah J Curtis, Paul T Ishimine, Suzanne M Schmidt, Stuart A Bradin, Kendra L Grether-Jones, Aaron S Miller, Jeffrey Louie, Samir S Shah, Lise E Nigrovic
BACKGROUND: Although neonatal herpes simplex virus (HSV) is a potentially devastating infection requiring prompt evaluation and treatment, large-scale assessments of the frequency in potentially infected infants have not been performed. METHODS: We performed a retrospective cross-sectional study of infants ≤60 days old who had cerebrospinal fluid culture testing performed in 1 of 23 participating North American emergency departments. HSV infection was defined by a positive HSV polymerase chain reaction or viral culture...
January 3, 2018: Pediatrics
https://www.readbyqxmd.com/read/29290098/rotavirus-infection-as-a-frequent-cause-of-neonatal-fever
#12
Ha-Na Kang, Hyun Kyung Park, Hyun-Ju Lee, Jin-Hwa Moon, Jae Won Oh, Chang-Ryul Kim
BACKGROUND: Fever rather than diarrhea or vomiting was the most common symptom of neonatal rotavirus(RV) infection in our previous study. We investigated if RV infection is a major cause of neonatal fever and we compared the clinical characteristics of bacterial infections, viral infections and unknown causes of neonatal fever. METHOD: We reviewed the electronic medical records of 48 newborns of ≤ 28 days who were admitted to the Special Care Nursery of Hanyang University Guri Hospital for fever (≥ 38°C) from 2005 to 2009...
December 31, 2017: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/29289900/new-advances-in-cns-immunity-against-viral-infection
#13
REVIEW
Monica Manglani, Dorian B McGavern
The central nervous system (CNS) is an immunologically specialized organ where restrictive barrier structures protect the parenchyma from inflammation and infection. This protection is important in preventing damage to non-renewable resident cell populations, such as neurons, responsible for functions ranging from executive to autonomic. Despite these barriers, the CNS can be infected through several entry portals, giving rise to meningitis and encephalitis. Following infection, resident cells recruit peripherally derived immune cells to sites of viral infection...
December 28, 2017: Current Opinion in Virology
https://www.readbyqxmd.com/read/29245963/identification-of-potential-metabolic-biomarkers-of-cerebrospinal-fluids-that-differentiate-tuberculous-meningitis-from-other-types-of-meningitis-by-a-metabolomics-study
#14
Yi-Ning Dai, Hai-Jun Huang, Wen-Yuan Song, Yong-Xi Tong, Dan-Hong Yang, Ming-Shan Wang, Yi-Cheng Huang, Mei-Juan Chen, Jia-Jie Zhang, Ze-Ze Ren, Wei Zheng, Hong-Ying Pan
Tuberculous meningitis (TBM) is caused by tuberculosis infection of of the meninges, which are the membrane systems that encircle the brain, with a high morbidity and mortality rate. It is challenging to diagnose TBM among other types of meningitis, such as viral meningitis, bacterial meningitis and cryptococcal meningitis. We aimed to identify metabolites that are differentially expressed between TBM and the other types of meningitis by a global metabolomics analysis. The cerebrospinal fluids (CSF) from 50 patients with TBM, 17 with viral meningitis, 17 with bacterial meningitis, and 16 with cryptococcal meningitis were analyzed using ultra high performance liquid chromatography coupled with quadrupole time of flight mass spectrometry (UHPLC-QTOF-MS)...
November 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/29229308/lymphocyte-dominant-encephalitis-and-meningitis-in-simian-immunodeficiency-virus-infected-macaques-receiving-antiretroviral-therapy
#15
Lisa M Mangus, Sarah E Beck, Suzanne E Queen, Samuel A Brill, Erin N Shirk, Kelly A Metcalf Pate, Dillon C Muth, Robert J Adams, Lucio Gama, Janice E Clements, Joseph L Mankowski
A retrospective neuropathologic review of 30 SIV-infected pigtailed macaques receiving combination antiretroviral therapy (cART) was conducted. Seventeen animals with lymphocyte-dominant inflammation in the brain and/or meninges that clearly was morphologically distinct from prototypic SIV encephalitis and human immunodeficiency virus encephalitis were identified. Central nervous system (CNS) infiltrates in cART-treated macaques primarily comprised CD20+ B cells and CD3+ T cells with fewer CD68+ macrophages...
January 2018: American Journal of Pathology
https://www.readbyqxmd.com/read/29184338/rapid-clinical-score-for-the-diagnosis-of-tuberculous-meningitis-a-retrospective-cohort-study
#16
Raluca Jipa, Ioana D Olaru, Eliza Manea, Simona Merisor, Adriana Hristea
Objective: The aim of our study was to retrospectively validate a previously described rapid clinical score (RCS) in distinguishing tuberculous meningitis (TBM) from viral meningitis (VM) in people who are at increased risk of tuberculosis, as well as from cryptococcal meningitis (CM) in HIV-infected patients. Methods: We performed a retrospective study of patients admitted with a diagnosis of aseptic meningitis between January 2012 and December 2015, to a referral hospital for infectious diseases...
October 2017: Annals of Indian Academy of Neurology
https://www.readbyqxmd.com/read/29170349/52%C3%A2-loop-mediated-isothermal-amplification-pcr-lamp-for-the-rapid-identification-of-invasive-meningococcal-disease-in-the-emergency-department
#17
Thomas Waterfield, Bethany Patenall, James McKenna, Derek Fairley
BACKGROUND: Despite successful vaccination programmes meningococcal disease (MD) remains the leading infectious cause of septicaemia and death in children in the UK and Ireland.1,2 The early diagnosis of MD significantly improves outcomes with reduced morbidity and mortality.1,2 The early stages of MD are often indistinguishable from a simple viral illness making an early positive diagnosis of MD difficult.1 Hibergene have developed a commercially available bedside Loop-mediated isothermal AMPlification PCR (LAMP-MD) test that is a highly sensitive 0...
December 2017: Emergency Medicine Journal: EMJ
https://www.readbyqxmd.com/read/29164043/antiviral-activity-of-itraconazole-against-echovirus-30-infection-in-vitro
#18
Jae-Sug Lee, Hwa-Jung Choi, Jae-Hyoung Song, Hyun-Jeong Ko, Kyungah Yoon, Jeong-Min Seong
Objectives: Echovirus 30 is a major cause of meningitis in children and adults. The aim of this study was to investigate whether the antifungal drug itraconazole could exhibit antiviral activity against echovirus 30. Methods: The cytopathic effect and viral RNA levels were assessed in RD cells as indicators of viral replication. The effects of itraconazole were compared to those of two known antiviral drugs, rupintrivir and pleconaril. The time course and time-of-addition assays were used to approximate the time at which itraconazole exerts its activity in the viral cycle...
October 2017: Osong Public Health and Research Perspectives
https://www.readbyqxmd.com/read/29163992/cd56-negative-aggressive-nk-cell-leukemia-relapsing-as-multiple-cranial-nerve-palsies-case-report-and-literature-review
#19
M Guerreiro, F Príncipe, M J Teles, S Fonseca, A H Santos, E Fonseca, P Gomes, C Marques, M Lima
Background: Aggressive natural killer cell leukemia (ANKL) is extremely rare and habitually manifests as a systemic disease with multiorgan failure that rapidly evolves to death. The neoplastic natural killer (NK) cells usually harbor the Epstein-Barr virus (EBV) with a latent viral infection pattern type II; they often have a cytoplasmic CD3ε+ and surface CD3-, CD2+, and CD56+ immunophenotype, and they show complex genetic abnormalities affecting multiple tumor suppressor genes and oncogenes...
2017: Case Reports in Hematology
https://www.readbyqxmd.com/read/29156511/molecular-epidemiology-and-prevalence-of-echovirus-30-in-zhejiang-province-china-from-2002-to-2015
#20
Yin Chen, Yi Sun, Juying Yan, Ziping Miao, Changping Xu, Yanjun Zhang, Haiyan Mao, Liming Gong
Echovirus 30 serotype (ECHO30) has been responsible for several, recent, worldwide outbreaks of viral meningitis. In Zhejiang Province, China, ECHO30 has been one of the main causes of viral meningitis for years. This study, using phylogenetic analysis on VP1 gene, was performed to investigate the general molecular epidemiology and genetic patterns of ECHO30 circulating in Zhejiang Province between the years 2002 and 2015. The nucleotide sequences of ECHO30 VP1 showed that they were 64.8% identical with the prototype strain, Bastianni, while the amino acids were 84...
November 21, 2017: Journal of Microbiology and Biotechnology
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