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https://www.readbyqxmd.com/read/29333818/community-acquired-methicillin-resistant-staphylococcus-aureus-infections-hospitalization-and-case-fatality-risk-in-10-pediatric-facilities-in-argentina
#1
Ángela Gentile, Julia Bakir, Gabriela Ensinck, Aldo Cancellara, Enrique V Casanueva, Verónica Firpo, Martín Caruso, María F Lución, Alejandro Santillán Iturres, Fabiana Molina, Héctor J Abate, Andrea Gajo Gane, Santiago López Papucci
INTRODUCTION: Community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA) infections are prevalent both in Argentina and worldwide, and they may have a severe clinical course. OBJECTIVES: To estimate the hospitalization rate and case fatality risk factors of CA-MRSA infection. METHODS: Cross-sectional, analytical study. All patients < 15 years old with community-acquired Staphylococcus aureus (CA-SA) infections admitted to 10 pediatric facilities between January 2012 and December 2014 were included...
February 1, 2018: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/29333751/identification-of-the-minimal-glycotope-of-streptococcus-pneumoniae-7f-capsular-polysaccharide-using-synthetic-oligosaccharides
#2
Petra Menova, Mauro Sella, Katrin Sellrie, Claney Pereira, Peter H Seeberger
Streptococcus pneumoniae causes life-threatening diseases including meningitis, pneumonia and sepsis. Existing glycoconjugate vaccines based on purified capsular polysaccharides are widely used and help to prevent millions of deaths every year. Here, we report total synthesis of oligosaccharides resembling portions of the S. pneumoniae serotype 7F (ST7F) capsular polysaccharide repeating unit. To define minimal glycan epitopes, glycan microarrays containing the synthetic oligosaccharides were used to screen human reference serum and revealed that both side chains of the ST7F play a key role in antigen recognition...
January 14, 2018: Chemistry: a European Journal
https://www.readbyqxmd.com/read/29332649/isoniazid-and-rifampicin-heteroresistant-mycobacterium-tuberculosis-isolated-from-tuberculous-meningitis-patients-in-india
#3
Renu Gupta, Rajeev Thakur, Suman Kushwaha, Nupur Jalan, Pumanshi Rawat, Piyush Gupta, Amitesh Aggarwal, Meena Gupta, Vikas Manchanda
BACKGROUND: Heteroresistant Mycobacterium tuberculosis (mixture of susceptible and resistant subpopulations) is thought to be a preliminary stage to full resistance and timely detection, initiation of correct treatment is vital for successful anti tubercular therapy. The aim of this study was to detect multi drug resistant (MDR) and heteroresistant M. tuberculosis with the associated gene mutations from patients of tuberculous meningitis. METHODS: A total of 197 M...
January 2018: Indian Journal of Tuberculosis
https://www.readbyqxmd.com/read/29332416/-autoimmune-encephalitis-possibilities-in-the-laboratory-investigation
#4
Katalin Böröcz, Zsófia Hayden, Viktória Mészáros, Zsuzsanna Csizmadia, Kornélia Farkas, Zoltán Kellermayer, Péter Balogh, Ferenc Nagy, Tímea Berki
INTRODUCTION: The role of autoimmune responses against central nervous system (CNS) antigens in encephalitis presenting with non-classified neurologic or psychiatric symptoms has been appreciated in the past decade. Paraneoplastic limbic encephalitis has a poor prognosis and is most commonly associated with lung, ovarium, and testicular neoplasms, leading to immune reactions against intracellular antigens (anti-Hu/ANNA1, anti-Ri/ANNA2, anti-CV2/CRMP5 and anti-Ma2/Ta). In contrast, the recently described autoimmune encephalitis subtypes present with a broad spectrum of symptoms, respond to autoimmune therapies well and usually associate with autoantibodies against neuronal cell surface receptors (NMDAR, GABABR, AMPAR) or synaptic proteins (LGI1, CASPR2)...
January 2018: Orvosi Hetilap
https://www.readbyqxmd.com/read/29332184/neurologic-complications-of-immune-checkpoint-inhibitors
#5
Avi Fellner, Chen Makranz, Michal Lotem, Felix Bokstein, Alisa Taliansky, Shai Rosenberg, Deborah T Blumenthal, Jacob Mandel, Suzana Fichman, Elena Kogan, Israel Steiner, Tali Siegal, Alexander Lossos, Shlomit Yust-Katz
Immune checkpoint inhibitors (ICPIs) have recently emerged as a novel treatment for cancer. These agents, transforming the field of oncology, are not devoid of toxicity and cause immune-related side effects which can involve any organ including the nervous system. In this study, we present 9 patients (7 men and 2 women) with neurologic complications secondary to ICPI treatment. These included meningoencephalitis, limbic encephalitis, polyradiculitis, cranial polyneuropathy, myasthenic syndrome and myositis...
January 13, 2018: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29331846/functional-neuroimaging-in-rasmussen-syndrome
#6
Ichiro Kuki, Kazumi Matsuda, Yuko Kubota, Tetsuhiro Fukuyama, Yukitoshi Takahashi, Yushi Inoue, Haruo Shintaku
PURPOSE: For a diagnosis of Rasmussen syndrome (RS), clinical course together with electroencephalography (EEG) and magnetic resonance imaging (MRI) findings are considered important, but there are few reports on functional neuroimaging. This study investigated cerebral blood flow (CBF)-single photon emission computed tomography (SPECT), central benzodiazepine receptor (BZR)-SPECT, and fluorine-18 fluorodeoxy glucose-positron emission tomography (FDG-PET) in RS patients, and correlated neuroimaging results with MRI and pathological findings...
January 5, 2018: Epilepsy Research
https://www.readbyqxmd.com/read/29331570/meningeal-marginal-zone-b-cell-lymphoma-the-meningioma-trap
#7
Alexandre Villeneuve, François Rubin, Pierre Bonfils
OBJECTIVE: To report a case of marginal zone MALT lymphoma of the temporal dura mater, initially mistaken for temporal meningioma. CASE REPORT: A 60-year-old immunocompetent woman, followed for more than 10 years for temporal meningioma causing vertigo and mixed hearing loss, presented with cervical lymphadenopathy, revealing marked progression of an intracranial lesion, leading to a diagnosis of marginal zone MALT lymphoma based on histological examination of a cervical lymph node...
January 10, 2018: European Annals of Otorhinolaryngology, Head and Neck Diseases
https://www.readbyqxmd.com/read/29330273/rheumatoid-disease-an-unusual-cause-of-relapsing-meningoencephalitis
#8
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/29329947/-pseudoexfoliation-syndrome-and-pseudoexfoliation-glaucoma
#9
REVIEW
C Schweitzer
Pseudoexfoliation syndrome is an age-related systemic disease that mainly affects the anterior structures of the eye. Despite a worldwide distribution, reported incidence and prevalence of this syndrome vary widely between ethnicities and geographical areas. The exfoliative material is composed mainly of abnormal cross-linked fibrils that accumulate progressively in some organs such as the heart, blood vessels, lungs or meninges, and particularly in the anterior structures of the eye. The exact pathophysiological process still remains unclear but the association of genetic and environmental factors are thought to play a role in the development and progressive extracellular accumulation of exfoliative material...
January 9, 2018: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/29329729/elevated-neuron-specific-enolase-and-s100-calcium-binding-protein-b-concentrations-in-cerebrospinal-fluid-of-patients-with-anti-n-methyl-d-aspartate-receptor-encephalitis
#10
Baozhu Liu, Zuoshan Xie, Guanghui Liu, Yong Gu, Suyue Pan, Honghao Wang
BACKGROUND: Anti‑N‑methyl‑d‑aspartate receptor (NMDAR) encephalitis is a relatively common autoimmune neurological disease of the central nervous system (CNS). Neuron-specific enolase (NSE) and S100 calcium-binding protein B (S100B) are structural proteins of the central nervous system (CNS). In patients with CNS injury accompanied by nervous tissue and cellular damage, these structural proteins are released from cells; their extracellular concentrations, including those in cerebrospinal fluid (CSF) and blood, subsequently increase...
January 9, 2018: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29329287/isolation-and-complete-genome-analysis-of-neurotropic-dengue-virus-serotype-3-from-the-cerebrospinal-fluid-of-an-encephalitis-patient
#11
Rama Dhenni, Mulya Rahma Karyanti, Nina Dwi Putri, Benediktus Yohan, Frilasita A Yudhaputri, Chairin Nisa Ma'roef, Araniy Fadhilah, Aditya Perkasa, Restuadi Restuadi, Hidayat Trimarsanto, Irawan Mangunatmadja, Jeremy P Ledermann, Ronald Rosenberg, Ann M Powers, Khin Saw Aye Myint, R Tedjo Sasmono
Although neurological manifestations associated with dengue viruses (DENV) infection have been reported, there is very limited information on the genetic characteristics of neurotropic DENV. Here we describe the isolation and complete genome analysis of DENV serotype 3 (DENV-3) from cerebrospinal fluid of an encephalitis paediatric patient in Jakarta, Indonesia. Next-generation sequencing was employed to deduce the complete genome of the neurotropic DENV-3 isolate. Based on complete genome analysis, two unique and nine uncommon amino acid changes in the protein coding region were observed in the virus...
January 12, 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29328237/visible-light-optical-coherence-microscopy-of-the-brain-with-isotropic-femtoliter-resolution-in-vivo
#12
Conrad William Merkle, Shau Poh Chong, Aaron Michael Kho, Jun Zhu, Alfredo Dubra, Vivek Jay Srinivasan
Most flying-spot optical coherence tomography and optical coherence microscopy (OCM) systems use a symmetric confocal geometry, where the detection path retraces the illumination path starting from and ending with the spatial mode of a single-mode optical fiber. Here we describe a visible light OCM instrument that breaks this symmetry to improve transverse resolution without sacrificing collection efficiency in scattering tissue. This was achieved by overfilling a water immersion objective on the illumination path while maintaining a conventional Gaussian mode detection path (1/e2 intensity diameter ∼0...
January 15, 2018: Optics Letters
https://www.readbyqxmd.com/read/29327953/multicentric-cryptococcosis-in-a-congo-african-grey-parrot-psittacus-erithacus-erithacus
#13
Raina S K Schunk, Nicholas E Sitinas, Katherine E Quesenberry, Jessica L Grodio
An approximately 10-year-old, female Congo African grey parrot ( Psittacus erithacus erithacus) developed progressive, unilateral exophthalmos and buphthalmos. Survey radiographs revealed a large, coelomic, soft tissue mass, which was confirmed on computed tomography scan. Aspirates of both the contents of the buphthalmic globe and coelomic mass were consistent with Cryptococcus species. Initial results were later confirmed with serum antigen latex agglutination and polymerase chain reaction testing, and the organism was then identified as Cryptococcus neoformans with DNA sequencing...
December 2017: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/29327521/cerebrospinal-fluid-a-clinicopathologic-analysis
#14
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/29327271/-paraneoplastic-neurological-syndromes-a-current-summary
#15
REVIEW
D De Simoni, R Höftberger
BACKGROUND: Paraneoplastic neurological syndromes (PNNS) are remote effects of a tumor and mediated by an altered immune reaction. In the last ten years, the spectrum of PNNS has changed profoundly with the discovery of a new category of neurological diseases that are associated with antibodies against surface or synaptic antigens. In contrast to classical PNNS, patients with surface receptor autoimmunity are often highly responsive to immunotherapy. OBJECTIVES: This article provides an update on the most relevant PNNS, focusing on specific syndromes associated with antibodies against classical onconeuronal antigens as well as surface and synaptic proteins...
January 11, 2018: Der Internist
https://www.readbyqxmd.com/read/29327203/loss-of-cx43-mediated-functional-gap-junction-communication-in-meningeal-fibroblasts-following-mouse-hepatitis-virus-infection
#16
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/29327175/microrna-30c-as-a-novel-diagnostic-biomarker-for-primary-and-secondary-b-cell-lymphoma-of-the-cns
#17
Alexander Baraniskin, Monika Chomiak, Guido Ahle, Thomas Gress, Malte Buchholz, Michael Turewicz, Martin Eisenacher, Michelle Margold, Uwe Schlegel, Wolff Schmiegel, Stephan Hahn, Roland Schroers
Primary lymphomas of the central nervous system (PCNSL) are highly aggressive tumors affecting exclusively the CNS, meninges, and eyes. PCNSL must be separated from secondary spread of systemic lymphoma to the CNS (SCNSL), which may occur at diagnosis or relapse of systemic lymphomas. At present, there are no valid methods to distinguish PCNSL from SCNSL based on tumor biopsy because of similar histological presentation. However, SCNSL and PCNSL are different in terms of prognosis and adequate therapy protocols...
January 11, 2018: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29326960/risk-factors-for-clinician-diagnosed-lyme-arthritis-facial-palsy-carditis-and-meningitis-in-patients-from-high-incidence-states
#18
Natalie A Kwit, Christina A Nelson, Ryan Max, Paul S Mead
Background: Clinical features of Lyme disease (LD) range from localized skin lesions to serious disseminated disease. Information on risk factors for Lyme arthritis, facial palsy, carditis, and meningitis is limited but could facilitate disease recognition and elucidate pathophysiology. Methods: Patients from high-incidence states treated for LD during 2005-2014 were identified in a nationwide insurance claims database using the International Classification of Diseases, Ninth Revision code for LD (088...
January 2018: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/29326000/epidemiology-of-tuberculosis-in-spain-results-obtained-by-the-national-epidemiological-surveillance-network-in-2015
#19
Rosa Cano-Portero, Rocío Amillategui-Dos Santos, Raquel Boix-Martínez, Amparo Larrauri-Cámara
The epidemiological surveillance data for tuberculosis in Spain in 2015 is analysed in this report. This information was gathered through cases reported to the Red Nacional de Vigilancia Epidemiológica [National Epidemiological Surveillance Network]. In addition, the update of the treatment of the cases reported in 2014 is included. The incidence rate of tuberculosis in 2015 was 10.59 cases per 100,000 inhabitants, 10% less than in 2014. This decrease was mainly due to the sustained decreased trend of pulmonary tuberculosis rates, from other locations and in adults, while for cases of tuberculous meningitis and in children the decrease is less marked, with a tendency to stabilization...
January 8, 2018: Enfermedades Infecciosas y Microbiología Clínica
https://www.readbyqxmd.com/read/29325425/meningitis-vaccination-knowledge-and-awareness-among-ymsm-in-chicago
#20
Gregory Phillips, Amy K Johnson, Christian N Adames, Brian Mustanski
Serogroup C invasive meningococcal disease (IMD) outbreaks in men who have sex with men (MSM) have been occurring with greater frequency in urban areas across the United States. An effective vaccine for IMD is available and is recommended for MSM in outbreak settings. Particular subgroups of MSM have been disproportionately represented in outbreaks, specifically young, Black, and HIV-positive MSM. As little is known about the knowledge, awareness, and vaccination status of young MSM, we sought to describe this and explore racial/ethnic differences...
January 1, 2018: Health Education & Behavior: the Official Publication of the Society for Public Health Education
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