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Pneumococcal meningitis

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https://www.readbyqxmd.com/read/28424565/invasive-pneumococcal-disease-still-lots-to-learn-and-a-need-for-standardized-data-collection-instruments
#1
T J Marrie, G J Tyrrell, Sumit R Majumdar, Dean T Eurich
Background. Large studies of invasive pneumococcal disease (IPD) are frequently lacking detailed clinical information. Methods. A population-based 15-year study of IPD in Northern Alberta. Results. 2435 patients with a mean age of 54.2 years formed the study group. Males outnumbered females and Aboriginal and homeless persons were overrepresented. High rates of smoking, excessive alcohol use, and illicit drug use were seen. Almost all (87%) had a major comorbidity and 15% had functional limitations prior to admission...
2017: Canadian Respiratory Journal: Journal of the Canadian Thoracic Society
https://www.readbyqxmd.com/read/28419350/epidemiology-of-meningitis-and-encephalitis-in-the-united-states-from-2011-2014
#2
Rodrigo Hasbun, Ning Rosenthal, J M Balada-Llasat, Jessica Chung, Steve Duff, Samuel Bozzette, Louise Zimmer, Christine C Ginocchio
Background: Large epidemiological studies evaluating the etiologies, management decisions and outcomes of adults with meningitis and encephalitis in the United States (US) are lacking. Methods: Adult patients (≥18 years) with meningitis or encephalitis by ICD-9 codes available in the Premier Healthcare Database during 2011-2014 were analyzed. Results: A total of 26,429 patients with meningitis or encephalitis were identified. The median age was 43 years; 53% were female...
April 17, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28419005/clinical-utility-of-polymerase-chain-reaction-testing-for-streptococcus-pneumoniae-in-pediatric-cerebrospinal-fluid-samples-a-diagnostic-accuracy-study-of-more-than-2000-samples-from-2004-2015
#3
Abdullah Alqayoudhi, Maryke Nielsen, Nicola O'Sullivan, Mary Corcoran, Patrick J Gavin, Karina M Butler, Robert Cunney, Richard J Drew
The aim of this retrospective study was to review the diagnostic accuracy of real-time polymerase chain reaction (PCR) testing of cerebrospinal fluid (CSF) samples for Streptococcus pneumoniae DNA in comparison with traditional bacterial culture. The hypothesis was that PCR is more sensitive than culture and would detect more cases of pneumococcal meningitis, particularly in children treated with antimicrobials before CSF sampling occurred. Patients younger than 16 years who had a CSF sample tested for S.pneumoniae DNA by PCR between 2004 and 2015 were included...
April 17, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28403047/risk-factors-in-children-older-than-5-years-with-pneumococcal-meningitis-data-from-a-national-network
#4
Fanny Hénaff, Corinne Levy, Robert Cohen, Capucine Picard, Emmanuelle Varon, Christèle Gras Le Guen, Elise Launay
BACKGROUND: The occurrence of meningitis in children >5 years old may be associated with specific predisposing factors that can be anatomic, such as cerebrospinal fluid fistula or breach, or related to genetic susceptibility or N inborn or acquired immunologic defect. This study aimed to assess the anatomical and immunologic risk factors in children >5 years old with pneumococcal meningitis and prospectively enrolled in the French national meningitis network. METHODS: We analyzed all data for children who were 5-15 years old with a diagnosis of pneumococcal meningitis between 2001 and 2013...
May 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28385159/erratum-to-mannose-binding-lectin-associated-serine-protease-2-masp-2-contributes-to-poor-disease-outcome-in-humans-and-mice-with-pneumococcal-meningitis
#5
E Soemirien Kasanmoentalib, Mercedes Valls Seron, Bart Ferwerda, Michael W Tanck, Aeilko H Zwinderman, Frank Baas, Arie van der Ende, William J Schwaeble, Matthijs C Brouwer, Diederik van de Beek
No abstract text is available yet for this article.
April 6, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28349737/pediatric-acute-otitis-media-in-the-era-of-pneumococcal-vaccination
#6
Kareem O Tawfik, Stacey L Ishman, Mekibib Altaye, Jareen Meinzen-Derr, Daniel I Choo
Objectives (1) Describe longitudinal trends in annual prevalence of hospital admission for pediatric acute otitis media (AOM) and complications of AOM (CAOM) since introduction of pneumococcal vaccination in 2000 and (2) describe the longitudinal trend of prevalence of hospital admission for pneumococcal meningitis in children with AOM-related diagnoses in the postvaccination era. Study Design Retrospective analysis of Kids' Inpatient Database from 2000 to 2012. Setting Community, nonrehabilitation hospitals...
March 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28330602/the-pneumococcal-alpha-glycerophosphate-oxidase-enhances-nasopharyngeal-colonization-through-binding-to-host-glycoconjugates
#7
Layla K Mahdi, Melanie A Higgins, Christopher J Day, Joe Tiralongo, Lauren E Hartley-Tassell, Michael P Jennings, David L Gordon, Adrienne W Paton, James C Paton, Abiodun D Ogunniyi
Streptococcus pneumoniae (the pneumococcus) is a major human pathogen, causing a broad spectrum of diseases including otitis media, pneumonia, bacteraemia and meningitis. Here we examined the role of a potential pneumococcal meningitis vaccine antigen, alpha-glycerophosphate oxidase (SpGlpO), in nasopharyngeal colonization. We found that serotype 4 and serotype 6A strains deficient in SpGlpO have significantly reduced capacity to colonize the nasopharynx of mice, and were significantly defective in adherence to human nasopharyngeal carcinoma cells in vitro...
March 3, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28318182/pneumococcal-meningitis-in-cantabria-spain-in-the-pneumococcal-conjugate-vaccine-era-2001-2015
#8
Esther González-Escartín, Itziar Angulo López, Elsa Ots Ruiz, Luis Martínez-Martínez, María J Cabero Pérez
OBJECTIVE: To analyze the characteristics of pneumococcal meningitis in children ≤ 14 years old following the market introduction of pneumococcal conjugate vaccines in our community. METHODS: Retrospective study of pneumococcal meningitis cases with a two-period analysis: pre-13-valent pneumococcal conjugate vaccine (PCV13) (2001-2010) and post-PCV13 (2010-2015). Patient demographic and clinical data, and microbiological data were collected. RESULTS: Eighteen cases were diagnosed...
April 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28300164/role-of-purinergic-signaling-in-experimental-pneumococcal-meningitis
#9
Marco Zierhut, Susanne Dyckhoff, Ilias Masouris, Matthias Klein, Sven Hammerschmidt, Hans-Walter Pfister, Korcan Ayata, Marco Idzko, Uwe Koedel
Excessive neutrophilic inflammation contributes to brain pathology and adverse outcome in pneumococcal meningitis (PM). Recently, we identified the NLRP3 inflammasome/interleukin (IL)-1β pathway as a key driver of inflammation in PM. A critical membrane receptor for NLRP3 inflammasome activation is the ATP-activated P2 purinoceptor (P2R) P2X7. Thus, we hypothesized involvement of ATP and P2Rs in PM. The functional role of ATP was investigated in a mouse meningitis model using P2R antagonists. Brain expression of P2Rs was assessed by RT-PCR...
March 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28288168/a-novel-flow-cytometry-based-assay-for-the-quantification-of-antibody-dependent-pneumococcal-agglutination
#10
Marrit N Habets, Saskia van Selm, Christa E van der Gaast-de Jongh, Dimitri A Diavatopoulos, Marien I de Jonge
The respiratory pathogen Streptococcus pneumoniae is a major cause of diseases such as otitis media, pneumonia, sepsis and meningitis. The first step towards infection is colonization of the nasopharynx. Recently, it was shown that agglutinating antibodies play an important role in the prevention of mucosal colonization with S. pneumoniae. Here, we present a novel method to quantify antibody-dependent pneumococcal agglutination in a high-throughput manner using flow cytometry. We found that the concentration of agglutinating antibodies against pneumococcal capsule are directly correlated with changes in the size and complexity of bacterial aggregates, as measured by flow cytometry and confirmed by light microscopy...
2017: PloS One
https://www.readbyqxmd.com/read/28284682/childhood-pneumococcal-disease-in-africa-a-systematic-review-and-meta-analysis-of-incidence-serotype-distribution-and-antimicrobial-susceptibility
#11
REVIEW
Pui-Ying Iroh Tam, Beth K Thielen, Stephen K Obaro, Ann M Brearley, Alexander M Kaizer, Haitao Chu, Edward N Janoff
BACKGROUND: Determining the incidence, disease-associated serotypes and antimicrobial susceptibility of invasive pneumococcal disease (IPD) among children in Africa is essential in order to monitor the impact of these infections prior to widespread introduction of the pneumococcal conjugate vaccine (PCV). METHODS: To provide updated estimates of the incidence, serotype distribution, and antimicrobial susceptibility profile of Streptococcus pneumoniae causing disease in Africa, we performed a systematic review of articles published from 2000 to 2015 using Ovid Medline and Embase...
April 4, 2017: Vaccine
https://www.readbyqxmd.com/read/28266699/rapidly-progressive-and-almost-lethal-pneumonia
#12
Juancarlo Martínez-González, Carlos Robles-Arias, William Rodríguez-Cintrón
We herein describe the case of a 65-year-old male patient who presented with Osler's triad, which is the combination of endocarditis, pneumonia, and meningitis. This report is even more unusual since the pathogen isolated was the invasive and virulent strain of Streptococcus pneumoniae serotype 3. The clinical entity described is also called Austrian syndrome. Even though rare in this antibiotic era, the syndrome remains one of high morbidity and mortality. This particular case is of paramount importance for the clinician reader...
March 2017: Puerto Rico Health Sciences Journal
https://www.readbyqxmd.com/read/28247176/detection-of-significant-pneumococcal-meningitis-biomarkers-by-ego-network
#13
Qian Wang, Zhifeng Lou, Liansuo Zhai, Haibin Zhao
OBJECTIVE: To identify significant biomarkers for detection of pneumococcal meningitis based on ego network. METHODS: Based on the gene expression data of pneumococcal meningitis and global protein-protein interactions (PPIs) data recruited from open access databases, the authors constructed a differential co-expression network (DCN) to identify pneumococcal meningitis biomarkers in a network view. Here EgoNet algorithm was employed to screen the significant ego networks that could accurately distinguish pneumococcal meningitis from healthy controls, by sequentially seeking ego genes, searching candidate ego networks, refinement of candidate ego networks and significance analysis to identify ego networks...
March 1, 2017: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/28245940/risk-stacking-of-pneumococcal-vaccination-indications-increases-mortality-in-unvaccinated-adults-with-streptococcus-pneumoniae-infections
#14
Jacob B Morton, Haley J Morrill, Kerry L LaPlante, Aisling R Caffrey
BACKGROUND: Several chronic disease states have been identified as pneumococcal vaccination indications due to their ability to increase pneumococcal disease development and subsequent mortality. However, the risk of mortality according to the number of these disease states present is unknown. We sought to determine the impact of concomitant, multiple risk factors (stacked risks) for pneumococcal disease on 30-day mortality in adults. METHODS: This was a national case-control study of unvaccinated older Veterans (≥50years of age) admitted to Veterans Affairs medical centers from 2002 to 2011 with serious pneumococcal infections (pneumonia, bacteremia, meningitis) based on positive S...
March 23, 2017: Vaccine
https://www.readbyqxmd.com/read/28244176/can-infant-vaccination-prevent-pneumococcal-meningitis-outbreaks-in-sub-saharan-africa
#15
EDITORIAL
James M Stuart
No abstract text is available yet for this article.
February 28, 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/28241127/vitamin-d-promotes-pneumococcal-killing-and-modulates-inflammatory-responses-in-primary-human-neutrophils
#16
Karthik Subramanian, Peter Bergman, Birgitta Henriques-Normark
Streptococcus pneumoniae is a major human pathogen and a leading cause of pneumonia, septicemia, and meningitis worldwide. Despite clinical studies linking vitamin D deficiency and pneumonia, molecular mechanisms behind these observations remain unclear. In particular, the effects of vitamin D on neutrophil responses remain unknown. Using pneumococcal strains, primary neutrophils isolated from human blood, and sera from patients with frequent respiratory tract infections (RTIs), we investigated the effects of vitamin D on neutrophil bactericidal and inflammatory responses, including pattern recognition receptors, antimicrobial peptides, and cytokine regulation...
February 28, 2017: Journal of Innate Immunity
https://www.readbyqxmd.com/read/28211009/pneumococcal-predictive-proteins-selected-by-microbial-genomic-approach-are-serotype-cross-reactive-and-bind-to-host-extracellular-matrix-proteins
#17
Ana Paula Corrêa Argondizzo, Cláudio Marcos Rocha-de-Souza, Marta de Almeida Santiago, Ricardo Galler, Joice Neves Reis, Marco Alberto Medeiros
Streptococcus pneumoniae is a colonizer of the human nasopharynx, which accounts for most of the community-acquired pneumonia cases and can cause non-invasive and invasive diseases. Current available vaccines are serotype-specific and the use of recombinant proteins associated with virulence is an alternative to compose vaccines and to overcome these problems. In a previous work, we describe the identification of proteins in S. pneumoniae by reverse vaccinology and the genetic diversity of these proteins in clinical isolates...
February 17, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/28196635/childhood-meningitis-in-kuwait-in-the-era-of-post-pneumococcal-conjugate-vaccination-a-multicenter-study
#18
Hussain Sadeq, Entesar H Husain, Amna Alkoot, Suha Atyani, Abdullah Al-Fraij, Abdulrahman Al-Daithan, Talal AlSaleem, Anfal Taher, May Alenezi
This is a retrospective study to evaluate epidemiology and etiologies of childhood meningitis in Kuwait after the routine introduction of the pneumococcal conjugate vaccine. The data was collected from 196 patients in the period of 2010-2014. Aseptic meningitis accounted for 51% of the cases, bacterial meningitis accounted for 29% cases and partially treated meningitis were 20%. Organisms causing bacterial meningitis were: Streptococcus pneumoniae 40.4%, Neisseria meningitidis 17.6%, Haemophilus spp. 12.2%, other gram positive or negative 19...
February 9, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/28187904/hydrotherapy-for-the-long-term-ventilated-patient-a-case-study-and-implications-for-practice
#19
REVIEW
Sally Wegner, Peter Thomas, Christine James
Hydrotherapy of mechanically ventilated patients has been shown to be safe and feasible in both the acute stages of critical illness and in those requiring long term mechanical ventilation. This case study describes the hydrotherapy sessions of a 36 year old female, who after suffering complications of pneumococcal meningitis, became an incomplete quadriplegic and required long term mechanical ventilation. When implementing hydrotherapy with patients on mechanical ventilation a number of factors should be considered...
February 7, 2017: Australian Critical Care: Official Journal of the Confederation of Australian Critical Care Nurses
https://www.readbyqxmd.com/read/28187060/risk-factors-in-children-older-than-5-years-with-pneumococcal-meningitis-data-from-a-national-network
#20
Fanny Hénaff, Corinne Levy, Robert Cohen, Capucine Picard, Emmanuelle Varon, Christèle Gras Le Guen, Elise Launay
INTRODUCTION: The occurrence of meningitis in children > 5 years old may be associated with specific predisposing factors that can be anatomic, such as cerebrospinal fluid (CSF) fistula or breach, or related to genetic susceptibility or N inborn or acquired immunologic defect. This study aimed to assess the anatomical and immunologic risk factors in children > 5 years old with pneumococcal meningitis and prospectively enrolled in the French national meningitis network. METHODS: We analyzed all data for children 5 to 15 years old with a diagnosis of pneumococcal meningitis between 2001 and 2013...
December 13, 2016: Pediatric Infectious Disease Journal
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