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https://www.readbyqxmd.com/read/28742861/targeting-the-permeability-barrier-and-peptidoglycan-recycling-pathways-to-disarm-pseudomonas-aeruginosa-against-the-innate-immune-system
#1
Gabriel Torrens, Marcelo Pérez-Gallego, Bartolomé Moya, Marta Munar-Bestard, Laura Zamorano, Gabriel Cabot, Jesús Blázquez, Juan A Ayala, Antonio Oliver, Carlos Juan
Antimicrobial resistance is a continuously increasing threat that severely compromises our antibiotic arsenal and causes thousands of deaths due to hospital-acquired infections by pathogens such as Pseudomonas aeruginosa, situation further aggravated by the limited development of new antibiotics. Thus, alternative strategies such as those targeting bacterial resistance mechanisms, virulence or potentiating the activity of our immune system resources are urgently needed. We have recently shown that mutations simultaneously causing the peptidoglycan recycling blockage and the β-lactamase AmpC overexpression impair the virulence of P...
2017: PloS One
https://www.readbyqxmd.com/read/28740667/discordance-of-physician-clinical-judgment-vs-pneumonia-severity-index-psi-score-to-admit-patients-with-low-risk-community-acquired-pneumonia-a-prospective-multicenter-study
#2
Pedro J Marcos, Marcos I Restrepo, Francisco J González-Barcala, Nilam J Soni, Iria Vidal, Pilar Sanjuàn, Diego Llinares, Lucía Ferreira-Gonzalez, Carlos Rábade, Isabel Otero-González, Pedro Marcos, Héctor Verea-Hernando
BACKGROUND: The relationship between clinical judgment and the pneumonia severity index (PSI) score in deciding the site of care for patients with community-acquired pneumonia (CAP) has not been well investigated. The objective of the study was to determine the clinical factors that influence decision-making to hospitalize low-risk patients (PSI ≤2) with CAP. METHODS: An observational, prospective, multicenter study of consecutive CAP patients was performed at five hospitals in Spain...
June 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28740406/conventional-real-time-pcr-based-detection-of-t790m-using-tumor-tissue-or-blood-in-patients-with-egfr-tki-resistant-nsclc
#3
Ya-Lan Wu, Rui-Zhan Tong, Yan Zhang, Bin-Bin Hu, Ke Zheng, Zhen-Yu Ding, Feng Peng, You-Ling Gong, Yong-Mei Liu, You Lu
Blood biopsy has many advantages over tissue biopsy for diagnosing acquired T790M mutation in patients with non-small-cell lung cancer, such as being less risky and painful. New techniques with high sensitivity (eg, droplet digital PCR) show promising results during blood biopsy, but the positive rates of identification are still quite unclear. Whether there are other factors, except technology, affecting the results of blood biopsy is unclear. In this study, we used conventional amplification refractory mutation system to detect tumor tissue or blood for T790M mutation in patients clinically resistant to tyrosine kinase inhibitors...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28738398/the-compatibility-of-chlorhexidine-and-a-skin-care-product-line-a-real-world-analysis-of-hospital-acquired-infection-rates
#4
Priscilla L Phillips, Daniel Young, Debashish Chakravarthy
Chlorhexidine gluconate (CHG) use helps reduce hospital-acquired infections (HAIs). Chlorhexidine gluconate effectiveness can be reduced by use of skin care products. Although laboratory work can be performed to prove compatibility, such work has limitations. The purpose of this study was to compare HAI rates when CHG antiseptic wipes were used in conjunction with a silicone- and micronutrient-based skin care product line (SMSP) and when CHG wipes were used without the SMSP. Using commercial distribution data, 17 hospitals that purchased both CHG wipes and SMSP were identified...
July 2017: Health Care Manager
https://www.readbyqxmd.com/read/28738364/risk-factors-for-community-acquired-pneumonia-in-adults-a-systematic-review-of-observational-studies
#5
Jordi Almirall, Mateu Serra-Prat, Ignasi Bolíbar, Valentina Balasso
We performed a systematic review of the literature to establish conclusive evidence of risk factors for community-acquired pneumonia (CAP). Observational studies (cross-sectional, case-control, and cohort studies) the primary outcome of which was to assess risk factors for CAP in both hospitalized and ambulatory adult patients with radiologically confirmed pneumonia were selected. The Newcastle-Ottawa Scale specific for cohort and case-control designs was used for quality assessment. Twenty-nine studies (20 case-control, 8 cohort, and 1 cross-sectional) were selected, with 44...
July 25, 2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28737132/differences-in-characteristics-and-outcomes-between-community-and-hospital-acquired-acute-kidney-injury-a-systematic-review-and-meta-analysis%C3%A2
#6
Ryota Inokuchi, Yoshitaka Hara, Hideo Yasuda, Noritomo Itami, Yoshio Terada, Kent Doi
INTRODUCTION: No comprehensive review has examined the difference between community-acquired (CA) and hospital-acquired (HA) acute kidney injury (AKI) in terms of patient characteristics, in-hospital mortality, and hospital stay length. MATERIALS AND METHODS: We conducted a systematic review and meta-analysis of observational studies, using MEDLINE, EMBASE, Web of Science, Google Scholar, and the Cochrane Library from their inceptions to April 10, 2016. Observational studies that (1) were published in peer-reviewed journals; (2) compared CA-AKI with HA-AKI, irrespective of the AKI definition during the same period; and (3) investigated in-hospital mortality and length of hospital stay were studied...
July 24, 2017: Clinical Nephrology
https://www.readbyqxmd.com/read/28737025/-influence-of-initial-protocolized-treatment-with-steroids-in-length-of-stay-and-costs-of-community-acquired-pneumonia
#7
J Gómez Gómez, J L Gómez Torres, A Hernández Torres, J A García Córdoba, M Canteras Jordana
OBJECTIVE: The aim of the study was to analyze the impact of steroid treatment in patients with community acquired pneumonia (CAP), both in length of stay and economical cost of admission at a clinical university hospital. METHODS: Prospective study of admitted patients with the diagnosis of CAP, both in Internal Medicine and Infectious diseases department. The study was conducted from January to march 2015; patients receiving steroids from diagnosis to end of antibiotic treatment were classified as group I; otherwise, they were considered in group II...
July 24, 2017: Revista Española de Quimioterapia: Publicación Oficial de la Sociedad Española de Quimioterapia
https://www.readbyqxmd.com/read/28736811/incidental-finding-of-a-membranous-interventricular-septum-aneurysm
#8
Konstantinos C Theodoropoulos, Giovanni Masoero, Emily Denman, Alexandros Papachristidis, Mark J Monaghan
We present the case of a 34-year-old female who was admitted to our hospital due to community-acquired pneumonia and had a transthoracic echocardiogram which revealed an aneurysm of the membranous interventricular septum. This was further investigated with a transesophageal echocardiogram which showed in detail the anatomical features of this very rare condition.
July 23, 2017: Echocardiography
https://www.readbyqxmd.com/read/28735057/brazil-s-resolutions-to-regulate-the-sale-of-antibiotics-impact-on-consumption-and-escherichia-coli-resistance-rates
#9
Karen P H Mattos, Marília B Visacri, Júlia C F Quintanilha, Gustavo R Lloret, Maria A Cursino, Anna S Levin, Carlos E Levy, Patricia Moriel
OBJECTIVE: The aim of this study was to determine the impact of two resolutions to restrict antibiotic use (RDCs no. 44/2010 and 20/2011) in the Campinas metropolitan area (Sao Paulo, Brazil) on antibiotic consumption, resistance rates, and trends in Escherichia coli-causing community-acquired urinary tract infection (UTI). METHODS: The annual retail sale information of antibiotics from drugstores in the Campinas metropolitan area between 2008 and 2012 were obtained through the Intercontinental Medical Statistics Health of Brazil...
July 19, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28735055/molecular-analysis-of-virulence-genes-and-the-accessory-gene-regulator-agr-types-among-methicillin-resistant-staphylococcus-aureus-mrsa-strains
#10
Sara Cheraghi, Leyla Pourgholi, Maryam Shafaati, Shirinsadat Hashemi Fesharaki, Arash Jalali, Rahim Nosrati, MohammadAli Boroumand
OBJECTIVES: Methicillin resistant S. aureus (MRSA) strains are a main cause of hospital-acquired infections and are considered as a serious public-health concern. MRSA isolates have plenty of virulence factors, which are the basis for its pathogenicity. The controlling and coordination of the expression of these genes perform by the accessory gene regulator (agr). The aim of this study was to determine the rate of some virulence genes encoding the enterotoxin, exfoliative toxin genes (eta), the adhesin genes and identification of agr specificity groups in MRSA isolates...
July 19, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28735048/emergence-of-different-acinetobacter-baumannii-clones-in-a-croatian-hospital-and-correlation-with-antibiotic-susceptibility
#11
Ranko Ladavac, Branka Bedenić, Mirna Vranić-Ladavac, Nada Barišić, Natalie Karčić, Karoline Pompe, Antun Ferenčić, Aleksandar Stojanović, Harald Seifert, Stjepan Katić, Paul G Higgins
OBJECTIVES: During routine diagnostic laboratory work, the clinical microbiologist observed an increase of Acinetobacter baumannii isolates with three different carbapenem susceptibility patterns: susceptible, intermediate and resistant. Isolates belonging to the same carbapenem susceptibility phenotype exhibited identical susceptibility/resistance patterns to non-β-lactam antibiotics. This prompted us to analyze the mechanisms of carbapenem-resistance and the molecular epidemiology of the isolates...
July 19, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28734432/outbreak-of-middle-east-respiratory-syndrome-coronavirus-causes-high-fatality-after-cardiac-operations
#12
Rakan I Nazer
Middle East respiratory syndrome-coronavirus (MERS-CoV) resembles a severe form of community-acquired pneumonia initially reported in Saudi Arabia in 2012. The MERS-CoV epidemic poses a big challenge because of its high mortality. In January 2015, a patient who was potentially incubating MERS-CoV arrived from the emergency department of another hospital and was admitted with acute coronary syndrome. This resulted in an outbreak in the cardiac surgery ward that caused the deaths of 5 of 6 patients who had undergone cardiac operations...
August 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28733674/role-of-sccmec-type-in-resistance-to-the-synergistic-activity-of-oxacillin-and-cefoxitin-in-mrsa
#13
Nathalie T Reichmann, Mariana G Pinho
β-lactam antibiotics target penicillin-binding proteins (PBPs) preventing peptidoglycan synthesis and this inhibition is circumvented in methicillin resistant Staphylococcus aureus (MRSA) strains through the expression of an additional PBP, named PBP2A. This enzyme is encoded by the mecA gene located within the Staphylococcal Chromosome Cassette mec (SCCmec) mobile genetic element, of which there are 12 types described to date. Previous investigations aimed at analysing the synergistic activity of two β-lactams, oxacillin and cefoxitin, found that SCCmec type IV community-acquired MRSA strains exhibited increased susceptibility to oxacillin in the presence of cefoxitin, while hospital-acquired MRSA strains were unaffected...
July 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28732822/atypical-coverage-in-community-acquired-pneumonia-after-outpatient-beta-lactam-monotherapy
#14
Cornelis H van Werkhoven, Ewoudt M W van de Garde, Jan Jelrik Oosterheert, Douwe F Postma, Marc J M Bonten
INTRODUCTION: In adults hospitalized with community-acquired pneumonia (CAP) after >48 h of outpatient beta-lactam monotherapy, coverage of atypical pathogens is recommended based on expert opinion. METHODS: In a post-hoc analysis of a large study of CAP treatment we included patients who received beta-lactam monotherapy for >48 h before hospitalization. Length of hospital stay (LOS), 30-day mortality, and number of treatment escalations were compared for those that continued beta-lactam monotherapy and those that received atypical coverage at admission...
August 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/28732739/environmental-scan-of-infection-prevention-and-control-practices-for-containment-of-hospital-acquired-infectious-disease-outbreaks-in-acute-care-hospital-settings-across-canada
#15
Wrechelle Ocampo, Rose Geransar, Nancy Clayden, Jessica Jones, Jill de Grood, Mark Joffe, Geoffrey Taylor, Bayan Missaghi, Craig Pearce, William Ghali, John Conly
BACKGROUND: Ward closure is a method of controlling hospital-acquired infectious diseases outbreaks and is often coupled with other practices. However, the value and efficacy of ward closures remains uncertain. PURPOSE: To understand the current practices and perceptions with respect to ward closure for hospital-acquired infectious disease outbreaks in acute care hospital settings across Canada. METHODS: A Web-based environmental scan survey was developed by a team of infection prevention and control (IPC) experts and distributed to 235 IPC professionals at acute care sites across Canada...
July 18, 2017: American Journal of Infection Control
https://www.readbyqxmd.com/read/28732529/exiguobacterium-sp-a1b-gx59-isolated-from-a-patient-with-community-acquired-pneumonia-and-bacteremia-genomic-characterization-and-literature-review
#16
Xingchun Chen, Lijun Wang, Jiali Zhou, Honglong Wu, Dong Li, Yanchao Cui, Binghuai Lu
BACKGROUND: Bacterial species belonging to the genus Exiguobacterium are facultative anaerobic, non-spore-forming, Gram-positive bacilli, and rarely associated with human infections. Herein, we reported the first case of community-acquired pneumonia (CAP) and bacteremia due to Exiguobacterium spp. in China. CASE PRESENTATION: An adult male with severe CAP was hospitalized. The pathogen was isolated from his bloodstream and broncho-alveolar lavage fluid. The correct identification of the micro-organism was achieved using 16S rRNA sequencing, and its antibiotic susceptibility test was performed by microdilution method...
July 21, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28730159/antibiotic-prescribing-for-adults-hospitalized-in-the-etiology-of-pneumonia-in-the-community-study
#17
Sara Tomczyk, Seema Jain, Anna M Bramley, Wesley H Self, Evan J Anderson, Chris Trabue, D Mark Courtney, Carlos G Grijalva, Grant W Waterer, Kathryn M Edwards, Richard G Wunderink, Lauri A Hicks
BACKGROUND: Community-acquired pneumonia (CAP) 2007 guidelines from the Infectious Diseases Society of America (IDSA)/American Thoracic Society (ATS) recommend a respiratory fluoroquinolone or beta-lactam plus macrolide as first-line antibiotics for adults hospitalized with CAP. Few studies have assessed guideline-concordant antibiotic use for patients hospitalized with CAP after the 2007 IDSA/ATS guidelines. We examine antibiotics prescribed and associated factors in adults hospitalized with CAP...
2017: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/28728582/basic-parametric-analysis-for-a-multi-state-model-in-hospital-epidemiology
#18
Maja von Cube, Martin Schumacher, Martin Wolkewitz
BACKGROUND: The extended illness-death model is a useful tool to study the risks and consequences of hospital-acquired infections (HAIs). The statistical quantities of interest are the transition-specific hazard rates and the transition probabilities as well as attributable mortality (AM) and the population-attributable fraction (PAF). In the most general case calculation of these expressions is mathematically complex. METHODS: When assuming time-constant hazards calculation of the quantities of interest is facilitated...
July 20, 2017: BMC Medical Research Methodology
https://www.readbyqxmd.com/read/28728257/-eosinophilic-esophagitis-in-children-analysis-of-22-cases
#19
M F Sun, W Z Gu, K R Peng, M N Liu, X L Shu, L Q Jiang, M Z Jiang
Objective: Eosinophilic esophagitis (EoE) is a chronic immune-mediated esophageal disease.The current domestic reports of EoE in children is rare.The aim of this study was to analyze the clinical features, the diagnosis and treatment advance of EoE in children by case analysis and literature review. Method: Clinical data of 22 children with EoE from January, 2011 to December, 2015 in Children's Hospital, Zhejiang University School of Medicine were recorded, retrospective analysis was performed on clinical presentation, gastroendoscopy and histopathological examination features and the treatment...
July 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/28727714/3d-morphometric-analysis-of-normal-sacroiliac-joints-a-new-classification-of-surface-shape-variation-and-the-potential-implications-in-pain-syndromes
#20
Mary Kristen Jesse, Christopher Kleck, Adam Williams, Brian Petersen, Deborah Glueck, Kimberly Lind, Vikas Patel
BACKGROUND: Normal sacroiliac (SI) joints vary widely in shape, and it is unclear whether SI joint morphology plays a role in the development of pain. To answer this question, we used 3D-CT surface rendering to image healthy study participants and used the resulting images to develop a classification system for SI joint morphology. In a case-control study comparing health research participants to patients with SI pain, we assessed whether the classification of SI joint morphology was associated with pain...
July 2017: Pain Physician
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