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https://www.readbyqxmd.com/read/28822643/genetic-background-impacts-vaccine-induced-reduction-of-pneumococcal-colonization
#1
Kirsten Kuipers, Saskia van Selm, Fred van Opzeeland, Jeroen D Langereis, Lilly M Verhagen, Dimitri A Diavatopoulos, Marien I de Jonge
Vaccination has been one of the most successful strategies to reduce morbidity and mortality caused by respiratory infections. Recent evidence suggests that differences in the host genetic background and environmental factors may contribute to heterogeneity in the immune response to vaccination. During pre-clinical testing, vaccines are often evaluated in a single mouse inbred strain, which may not translate well to the heterogeneous human population. Here, we examined the influence of host genetic background on vaccine-induced protection against pneumococcal colonization in two commonly used inbred mouse strains, i...
August 16, 2017: Vaccine
https://www.readbyqxmd.com/read/28821940/videoendoscopy-worsens-swallowing-function-a-videofluoroscopic-study-a-randomized-controlled-trial
#2
Kazuo Adachi, Toshiro Umezaki, Yoshikazu Kikuchi
Aspiration pneumonia is a cause of mortality in the elderly. Evaluating swallowing function is important. Videofluoroscopy and flexible endoscopic evaluation of swallowing are comparable; however, observing all swallowing dynamics is impossible using the latter approach. We examined the significance of flexible endoscopic evaluation of swallowing using videofluoroscopy. Thirty-seven patients with dysphagia [70.0 ± 8.9 (range 49-84) years] were included. In random order, patients underwent videofluoroscopy with 10 cc contrast material, once without, and once with an endoscope inserted...
August 18, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28820412/-to-the-state-of-the-fetoplacental-complex-in-women-with-the-threat-of-abortion
#3
L Rzaguliyeva, Z Osmanli, S Akperbekova, N Meybalizade
The goal is a comprehensive study of the morphofunctional state of the mother-placenta-fetus system in placental insufficiency and infection. 250 pregnant and puerperas for the period 2008-2014 were examined. Detection of bacterial flora was carried out in 35 pregnant women aged 20.4±0.8 years with the threat of abortion from an early gestation period and a prolonged persistent infection of the genitals, bacterial vaginosis. Methods are applied: culture, ion chromatography, gas-liquid chromatography with mass spectrometry...
July 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28820363/incidence-of-perioperative-medical-complications-and-mortality-among-elderly-patients-undergoing-surgery-for-spinal-deformity-analysis-of-3519-patients
#4
Amit Jain, Hamid Hassanzadeh, Varun Puvanesarajah, Eric O Klineberg, Daniel M Sciubba, Michael P Kelly, D Kojo Hamilton, Virginie Lafage, Aaron J Buckland, Peter G Passias, Themistocles S Protopsaltis, Renaud Lafage, Justin S Smith, Christopher I Shaffrey, Khaled M Kebaish
OBJECTIVE Using 2 complication-reporting methods, the authors investigated the incidence of major medical complications and mortality in elderly patients after surgery for adult spinal deformity (ASD) during a 2-year follow-up period. METHODS The authors queried a multicenter, prospective, surgeon-maintained database (SMD) to identify patients 65 years or older who underwent surgical correction of ASD from 2008 through 2014 and had a minimum 2 years of follow-up (n = 153). They also queried a Centers for Medicare & Medicaid Services claims database (MCD) for patients 65 years or older who underwent fusion of 8 or more vertebral levels from 2005 through 2012 (n = 3366)...
August 18, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28818481/identification-of-streptococcus-pneumoniae-lyta-plya-and-psaa-genes-in-pleural-fluid-by-multiplex-real-time-pcr
#5
Juan Carlos Sanz, Esther Ríos, Iciar Rodríguez-Avial, Belén Ramos, Mercedes Marín, Emilia Cercenado
INTRODUCTION: The aim was to evaluate the utility of a multiplex real-time PCR to detect Streptococcus pneumoniae lytA, plyA and psaA genes in pleural fluid (PF). METHODS: A collection of 81 PF samples was used. Sixty were considered positive for S. pneumoniae according to previous results (54 by an in-house lytA gene PCR and eight by universal rRNA PCR). RESULTS: The sensitivity for detection of the lytA, plyA and psaA genes by multiplex PCR was 100% (60/60), 98...
August 14, 2017: Enfermedades Infecciosas y Microbiología Clínica
https://www.readbyqxmd.com/read/28816982/performance-of-procalcitonin-in-diagnosing-parapneumonic-pleural-effusions-a-clinical-study-and-meta-analysis
#6
Chao He, Bo Wang, Danni Li, Huan Xu, Yongchun Shen
BACKGROUND: Parapneumonic pleural effusion (PPE) is a common complication of pneumonia. The accurate diagnosis of PPE remains a challenge. Recent studies suggest that procalcitonin (PCT) emerges as a potential biomarker for PPE. Our study aimed to determine the diagnostic value of PCT for PPE by a clinical study and summarize the overall diagnostic performance of PCT through a meta-analysis. METHODS: Demographic and clinical data of the patients with PPE and controls were collected in our clinical study...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28816919/enteral-nutrition-practices-in-critically-ill-children-requiring-noninvasive-positive-pressure-ventilation
#7
Matthew K Leroue, Ryan J Good, Heather E Skillman, Angela S Czaja
OBJECTIVES: Evaluate the practice of providing enteral nutrition in critically ill children requiring noninvasive positive pressure ventilation. DESIGN: Retrospective cohort study. SETTING: PICU within a quaternary care children's hospital. PATIENTS: PICU patients older than 30 days requiring noninvasive positive pressure ventilation for greater than or equal to 24 hours from August 2014 to June 2015. Invasive mechanical ventilation prior to noninvasive positive pressure ventilation and inability to receive enteral nutrition at baseline were additional exclusionary criteria...
August 12, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28815910/streptococcus-pneumoniae-surface-protein-pfba-is-a-versatile-multi-domain-and-multi-ligand-binding-adhesin-employing-different-binding-mechanisms
#8
D S Jemima Beulin, Deepthi Radhakrishnan, C S Sharanya, Chittalakottu Sadasivan, Masaya Yamaguchi, Shigetada Kawabata, Karthe Ponnuraj
Streptococcus pneumoniae, one of the major human respiratory pathogens, uses its repertoire of surface proteins to adhere to the epithelium of the nasopharynx and lungs leading to colonization. PfbA is a conserved surface protein of S. pneumoniae and helps the bacterium to colonize the host by recognizing the extracellular matrix (ECM) molecule fibronectin, as well as blood proteins like plasminogen and human serum albumin. The crystal structure of rPfbA150-607 revealed it to possess a beta helical region similar to those of carbohydrate-active enzymes as well as a C-terminal segment that resembles the fibronectin-binding regions of fibronectin-binding proteins...
August 16, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28815084/predictive-factors-for-post-operative-respiratory-infections-after-esophagectomy-for-esophageal-cancer-outcome-of-randomized-trial
#9
Surya Say Biere, Mark I van Berge Henegouwen, Luigi Bonavina, Camiel Rosman, Josep Roig Garcia, Suzanne S Gisbertz, Donald L van der Peet, Miguel A Cuesta
BACKGROUND: The first and only randomized trial comparing open esophagectomy (OE) with minimally invasive esophagectomy (MIE) showed a significant lower incidence of post-operative respiratory infections in the patients who underwent MIE. In order to identify which specific factors are related to a better respiratory outcome in this trial an additional analysis was performed. METHODS: This was a prospective, multicenter, randomized controlled trial. Eligible patients, with a resectable intrathoracic esophageal carcinoma, including the gastro-esophageal (GE) junction tumors and Eastern Cooperative Oncology Group ≤2, were randomized to either MIE or OE...
July 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28814662/irgm1-coordinately-regulates-autoimmunity-and-host-defense-at-select-mucosal-surfaces
#10
Kathleen M Azzam, Jennifer H Madenspacher, Derek W Cain, Lihua Lai, Kymberly M Gowdy, Prashant Rai, Kyathanahalli Janardhan, Natasha Clayton, Willie Cunningham, Heather Jensen, Preeyam S Patel, John F Kearney, Gregory A Taylor, Michael B Fessler
The pathogenesis of primary Sjogren's syndrome (SS), an autoimmune disease that targets the mucosa of exocrine tissues, is poorly understood. Although several mouse models have been developed that display features of SS, most of these are within the larger context of a lupus-like presentation. Immunity-related GTPase family M protein 1 (Irgm1) is an interferon-inducible cytoplasmic GTPase that is reported to regulate autophagy and mitochondrial homeostasis. Here, we report that naive Irgm1-/- mice display lymphocytic infiltration of multiple mucosal tissues including the lung in a manner reminiscent of SS, together with IgA class-predominant autoantibodies including anti-Ro and anti-La...
August 17, 2017: JCI Insight
https://www.readbyqxmd.com/read/28814284/effect-of-poly-hexamethylene-biguanide-hydrochloride-phmb-treated-non-sterile-medical-gloves-upon-the-transmission-of-streptococcus-pyogenes-carbapenem-resistant-e-coli-mrsa-and-klebsiella-pneumoniae-from-contact-surfaces
#11
S Ali, A P R Wilson
BACKGROUND: Reduction of accidental contamination of the near-patient environment has potential to reduce acquisition of healthcare-associated infection(s). Although medical gloves should be removed when soiled or touching the environment, compliance is variable. The use of antimicrobial-impregnated medical gloves could reduce the horizontal-transfer of bacterial contamination between surfaces. AIM: Determine the activity of antimicrobial-impregnated gloves against common hospital pathogens: Streptococcus pyogenes, carbapenem-resistant E...
August 17, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28813753/pre-guideline-trends-associated-with-chest-radiograph-usage-for-pediatric-community-acquired-pneumonia-in-emergency-department-settings
#12
Eric W Jones, Benjamin Meyer, Aaron M Berg, Benson S Hsu
BACKGROUND: Health care spending in the U.S. totaled $3 trillion in 2014 and continues to increase rapidly. Minimizing waste through clinical guidelines is a promising strategy to reduce spending without compromising patient care. In 2011, clinical guidelines recommended against the use of chest X-ray (CXR) for diagnosis of community-acquired pneumonia (CAP) in pediatric ambulatory settings. However, use of CXR has not changed post-guideline. Thus, understanding the drivers of CXR utilization prior to guideline implementation could improve guideline adherence...
May 2017: South Dakota Medicine: the Journal of the South Dakota State Medical Association
https://www.readbyqxmd.com/read/28813096/cytotoxicity-and-bacterial-membrane-destabilization-induced-by-annona-squamosa-l-extracts
#13
Nícolas C C Pinto, Jucélia B Silva, Laura M Menegati, Maria Clara M R Guedes, Lucas B Marques, Thiago P DA Silva, Rossana C N DE Melo, Elaine M DE Souza-Fagundes, Marcos J Salvador, Elita Scio, Rodrigo L Fabri
This study aimed to further investigate the cytotoxicity against tumor cell lines and several bacterial strains of Annona squamosa and its mode of action. Methanol extracts of A. squamosa leaves (ASL) and seeds (ASS) were used. ASL showed significant antibacterial activity against S. aureus, K. pneumoniae and E. faecalis with MIC values of 78, 78 and 39 µg/mL respectively. Moreover, ASL exhibited significant biofilm disruption, rapid time dependent kinetics of bacterial killing, increased membrane permeability and significantly reduced the cell numbers and viability...
August 14, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28812547/lung-epithelial-cells-therapeutically-inducible-effectors-of-antimicrobial-defense
#14
REVIEW
M M Leiva-Juárez, J K Kolls, S E Evans
Lung epithelial cells are increasingly recognized to be active effectors of microbial defense, contributing to both innate and adaptive immune function in the lower respiratory tract. As immune sentinels, lung epithelial cells detect diverse pathogens through an ample repertoire of membrane-bound, endosomal, and cytosolic pattern-recognition receptors (PRRs). The highly plastic epithelial barrier responds to detected threats via modulation of paracellular flux, intercellular communications, mucin production, and periciliary fluid composition...
August 16, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/28812367/the-usefulness-of-diffusion-weighted-magnetic-resonance-imaging-performed-in-the-acute-phase-as-an-early-predictor-of-delayed-neuropsychiatric-sequelae-in-acute-carbon-monoxide-poisoning
#15
Y S Kim, Y S Cha, M S Kim, H J Kim, Y S Lee, H Youk, H I Kim, O H Kim, K-C Cha, H Kim, K H Lee, S O Hwang
Delayed onset of neuropsychiatric symptoms after apparent recovery from acute carbon monoxide (CO) poisoning has been described as delayed neuropsychiatric sequelae (DNS). No previous study has determined whether early use of diffusion-weighted magnetic resonance imaging (DWI) can predict which patients will develop DNS in the acute CO poisoning. This retrospective observational study was performed on adult patients with acute CO poisoning consecutively treated over a 17-month period. All included patients with acute CO poisoning underwent DWI to evaluate brain injury within 72 h after CO exposure...
January 1, 2017: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/28812150/respiratory-complications-after-colonic-procedures-in-chronic-obstructive-pulmonary-disease-does-laparoscopy-offer-a-benefit
#16
Sarath Sujatha-Bhaskar, Reza Fazl Alizadeh, Colette S Inaba, Christina Y Koh, Mehraneh D Jafari, Steven D Mills, Joseph C Carmichael, Michael J Stamos, Alessio Pigazzi
BACKGROUND: Patients with severe chronic obstructive pulmonary disease (COPD) are at a higher risk for postoperative respiratory complications. Despite the benefits of a minimally invasive approach, laparoscopic pneumoperitoneum can substantially reduce functional residual capacity and raise alveolar dead space, potentially increasing the risk of respiratory failure which may be poorly tolerated by COPD patients. This raises controversy as to whether open techniques should be preferentially employed in this population...
August 15, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28808474/effect-of-shin-iseihaito-xinyiqingfeitang-on-acute-streptococcus-pneumoniae-murine-sinusitis-via-macrophage-activation
#17
Masaaki Minami, Toru Konishi, Hiroshi Takase, Zhixia Jiang, Tetsuya Arai, Toshiaki Makino
Streptococcus pneumoniae (S. pneumoniae) causes sinusitis. The general treatment of S. pneumonia sinusitis is by using antibiotics; however, one of their serious problems is the attenuation of their effect. Shin'iseihaito (Xinyiqingfeitang), a formula of Japanese traditional Kampo medicine, has been used for the treatment of sinusitis in Japan. In this study, we investigated the efficacy of Shin'iseihaito against S. pneumoniae-caused sinusitis in mice. Oral administration of Shin'iseihaito extract (SSHT) decreased the nasal colonization of S...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28808157/cytosolic-phospholipase-a2%C3%AE-promotes-pulmonary-inflammation-and-systemic-disease-during-streptococcus-pneumoniae-infection
#18
Rudra Bhowmick, Stacie Clark, Joseph V Bonventre, John M Leong, Beth A McCormick
Pulmonary infection by Streptococcus pneumoniae is characterized by a robust alveolar infiltration of neutrophils (polymorphonuclear cells or PMNs) that can promote systemic spread of the infection if not resolved. We previously showed that 12-lipoxygenase (12-LOX), which is required to generate the PMN chemoattractant hepoxilin A3 (HXA3) from arachidonic acid (AA), promotes acute pulmonary inflammation and systemic infection after lung challenge with S. pneumoniae As phospholipase A2 (PLA2) promotes the release of AA, we investigated the role of PLA2 in local and systemic disease during S...
August 14, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28807913/reducing-antibacterial-development-risk-for-gsk1322322-by-exploring-potential-human-dose-regimens-in-nonclinical-efficacy-studies-using-immunocompetent-rats
#19
Jennifer L Hoover, Christine M Singley, Philippa Elefante, Peter DeMarsh, Magdalena Zalacain, Stephen Rittenhouse
Directly testing proposed clinical dosing regimens in nonclinical studies can reduce risk during the development of novel antibacterial agents. Optimal dosing regimens can be identified in animal models by testing recreated human pharmacokinetic profiles. An example of this approach is presented using continuous intravenous infusions of GSK1322322 in immunocompetent rats to evaluate recreated Phase 1 human exposures in pneumonia models with Streptococcus pneumoniae and Haemophilus influenzae and an abscess model with Staphylococcus aureus GSK1322322 was administered via continuous intravenous infusion to recreate 1000 or 1500 mg oral doses every 12h in humans...
August 14, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28806281/ventilator-associated-pneumonia-in-neonatal-intensive-care-unit-due-to-chryseobacterium-indologenes
#20
Vicente S Antonello, Priscila Daht, Janaína Polli, Milton Gross, Maurício Colvero
Ventilator-associated pneumonia (VAP) represents one of the most common nosocomial infections in neonatal intensive care units, increasing morbidity and mortality, and associated costs. The authors report the case of a neonatal patient with VAP secondary to Chryseobacterium indologenes and a review of the literature. . The most effective empiric treatment for C. indologenes infection remains unclear due to limited data in the literature, and therefore, therapy should be adjusted in accordance with the result of the susceptibility profile...
August 10, 2017: Pediatric Infectious Disease Journal
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