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https://www.readbyqxmd.com/read/28821026/ultrahigh-antibacterial-efficacy-of-meropenem-loaded-chitosan-nanoparticles-in-a-septic-animal-model
#1
Ayat Abdelkader, Mohamed A El-Mokhtar, Ola Abdelkader, Mostafa A Hamad, Mahmoud Elsabahy, Omaima N El-Gazayerly
Antimicrobial resistance is one of the most significant health challenges worldwide. Meropenem is a broad spectrum beta-lactam antibiotic that possesses high activity against Gram-positive and Gram-negative bacteria. However, it has a short plasma half-life, and thus requiring frequent administration of high doses. For the first time, meropenem-loaded chitosan nanoparticles were prepared and evaluated as a potential tool to overcome antimicrobial resistance and to improve pharmacokinetics of the drug. Spherical nanosized particles were prepared and demonstrated ultrahigh encapsulation efficiency of meropenem (i...
October 15, 2017: Carbohydrate Polymers
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
#2
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/28810329/-distribution-and-drug-resistance-of-pathogens-at-hematology-department-of-jiangsu-province-from-2014-to-2015-results-from-a-multicenter-retrospective-study
#3
Y K Wan, W Sang, B Chen, Y G Yang, L Q Zhang, A N Sun, Y J Liu, Y Xu, Y P Cai, C B Wang, Y F Shen, Y W Jiang, X Y Zhang, W Xu, M Hong, T Chen, R R Xu, F Li, Y L Xu, Y Xue, Y L Lu, Z M He, W M Dong, Z Chen, M H Ji, Y Y Yang, L J Zhai, Y Zhao, G Q Wu, J H Ding, J Cheng, W B Cai, Y M Sun, J Ouyang
Objective: To describe the distribution and drug resistance of pathogens at hematology department of Jiangsu Province from 2014 to 2015 to provide reference for empirical anti-infection treatment. Methods: Pathogens were from hematology department of 26 tertiary hospitals in Jiangsu Province from 2014 to 2015. Antimicrobial susceptibility testing was carried out according to a unified protocol using Kirby-Bauer method or agar dilution method. Collection of drug susceptibility results and corresponding patient data were analyzed...
July 14, 2017: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/28810309/-the-clinical-value-of-genotypic-diagnosis-and-current-state-of-community-acquired-methicillin-resistant-staphylococcus-aureus-pneumonia
#4
B He, W Q Diao, N Shen
No abstract text is available yet for this article.
August 12, 2017: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28797573/digestive-decontamination-in-burn-patients-a-systematic-review-of-randomized-clinical-trials-and-observational-studies
#5
REVIEW
Mercedes Rubio-Regidor, Ana Martín-Pellicer, Luciano Silvestri, Hendrik K F van Saene, José A Lorente, Miguel A de la Cal
OBJECTIVE: The objective of this systematic review is to assess the effect of selective digestive decontamination (SDD) or non-absorbable enteral antibiotics (EA) on mortality, the incidence of infection and its adverse effects in burn patients. MATERIAL AND METHODS: Systematic review of randomized clinical trials (RCT) or observational studies enrolling burn patients, and comparing SDD or EA prophylaxis with placebo or no treatment. The search includes Pubmed/Medline, EMBASE, WOS, Cochrane Library (1970-2015)...
August 7, 2017: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/28797299/prevalence-of-antimicrobial-drug-resistant-bacteria-carried-by-in-and-outpatients-attending-a-secondary-care-hospital-in-zambia
#6
Marjolijn M B Nagelkerke, Kapembwa Sikwewa, Dennis Makowa, Irene de Vries, Simon Chisi, J Wendelien Dorigo-Zetsma
OBJECTIVE: Antimicrobial resistance is an increasing global health problem. Very little data on resistance patterns of pathogenic bacteria in low-income countries exist. The aim of this study was to measure the prevalence of antimicrobial drug resistant bacteria carried by in- and outpatients in the resource constraint setting of a secondary care hospital in Zambia. Nasal and rectal samples from 50 in- and 50 outpatients were collected. Patients were randomly selected and informed consent was obtained...
August 10, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28761643/a-prospective-randomised-trial-of-isolated-pathogens-of-surgical-site-infections-ssi
#7
Konstantinos Alexiou, Ioannis Drikos, Maria Terzopoulou, Nikolaos Sikalias, Argyrios Ioannidis, Nikolaos Economou
BACKGROUND: Every surgical wound is colonized by bacteria, but only a small percentage displays symptoms of infection. The distribution of pathogens isolated in surgical site infections has not significantly changed over the last decades. Staph. Aureus, Coag(-) Staphylococci, Enterococcus spp and E. Coli are the main strains appearing. In addition, a continuously rising proportion of surgical site infections caused by resistant bacterial species (MRSA, C. Albicans) has been reported...
September 2017: Annals of Medicine and Surgery
https://www.readbyqxmd.com/read/28758615/determinants-of-implementation-of-isolation-precautions-against-infections-by-multidrug-resistant-microorganisms-a-hospital-based-multicenter-observational-study
#8
Thomas Bénet, Raphaele Girard, Solweig Gerbier-Colomban, Cédric Dananché, Elisabeth Hodille, Olivier Dauwalder, Philippe Vanhems
OBJECTIVES We aimed to ascertain the factors associated with lack of isolation precautions (IP) in patients infected or colonized by third-generation cephalosporin-resistant Enterobacteriaceae (3GCR-E) and methicillin-resistant Staphylococcus aureus (MRSA) in hospital settings. DESIGN Prospective surveillance and audit of practices. SETTING The study included 4 university hospitals in Lyon, France. PARTICIPANTS All patients hospitalized between April and June in 2013 and 2015 were included. Case patients had ≥1 clinical sample positive for MRSA and/or 3GCR-E...
July 31, 2017: Infection Control and Hospital Epidemiology
https://www.readbyqxmd.com/read/28754460/virulence-and-antibiotic-resistance-of-staphylococcus-aureus-isolated-from-bloodstream-infections-and-pneumonia-in-southern-poland
#9
Monika Pomorska-Wesołowska, Agnieszka Chmielarczyk, Monika Chlebowicz, Grzegorz Ziółkowski, Anna Szczypta, Joanna Natkaniec, Dorota Romaniszyn, Monika Pobiega, Mirosława Dzikowska, Lech Krawczyk, Joanna Kozioł, Jadwiga Wójkowska-Mach
OBJECTIVES: Staphylococcus aureus remains the most important cause of infections in hospitals and long-term care facilities.The aim of this study was to analyse the resistance, virulence and the epidemiological and genetic relationship of SA from bloodstream infections and pneumonia from patients in Southern Poland. METHODS: All strains were tested using disk diffusion antimicrobial susceptibility methods. E-tests for vancomycin, teicoplanin, tygecycline, oxacillin, cefoxitin and penicillin were also performed...
July 25, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28748772/epidemiology-and-hospital-readmission-associated-with-complications-of-staphylococcus-aureus-bacteremia-in-pediatrics-over-a-25-year-period
#10
J LE, Q Dam, T Tran, A Nguyen, F C Adler-Shohet, S Kim, K Schmidt, J M Lieberman, J S Bradley
We sought to comprehensively assess the prevalence and outcomes of complications associated with Staphylococcus aureus bacteremia (SAB) in children. Secondarily, prevalence of methicillin resistance and outcomes of complications from methicillin-resistant S. aureus (MRSA) vs. methicillin-susceptible S. aureus SAB were assessed. This is a single-center cross-sectional study of 376 patients ⩽18 years old with SAB in 1990-2014. Overall, 197 (52%) patients experienced complications, the most common being osteomyelitis (33%), skin and soft tissue infection (31%), and pneumonia (25%)...
September 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28748087/antimicrobial-effects-of-lysophosphatidylcholine-on-methicillin-resistant-staphylococcus-aureus
#11
Haruko Miyazaki, Naoko Midorikawa, Saki Fujimoto, Natsumi Miyoshi, Hideto Yoshida, Tetsuya Matsumoto
OBJECTIVES: Methicillin-resistant Staphylococcus aureus (MRSA) is an important health care-associated and community-associated pathogen and causes a large number of infections worldwide. For the purpose of application to topical treatment of MRSA infection, we examined the antimicrobial effects of lysophosphatidylcholine (LPC) on MRSA strains. We also investigated the combination effect of LPC and gentamicin on MRSA growth. METHODS: The LPC minimum inhibitory concentrations (MIC) for Gram-positive (S...
July 2017: Therapeutic Advances in Infectious Disease
https://www.readbyqxmd.com/read/28742812/broad-range-lytic-bacteriophages-that-kill-staphylococcus-aureus-local-field-strains
#12
Virginia Abatángelo, Natalia Peressutti Bacci, Carina A Boncompain, Ariel A Amadio, Soledad Carrasco, Cristian A Suárez, Héctor R Morbidoni
Staphylococcus aureus is a very successful opportunistic pathogen capable of causing a variety of diseases ranging from mild skin infections to life-threatening sepsis, meningitis and pneumonia. Its ability to display numerous virulence mechanisms matches its skill to display resistance to several antibiotics, including β-lactams, underscoring the fact that new anti-S. aureus drugs are urgently required. In this scenario, the utilization of lytic bacteriophages that kill bacteria in a genus -or even species- specific way, has become an attractive field of study...
2017: PloS One
https://www.readbyqxmd.com/read/28735054/linezolid-activity-against-clinical-gram-positive-cocci-with-advanced-antimicrobial-drug-resistance-in-iran
#13
Hamidreza Houri, Hossein Kazemian, Hadi Sedigh Ebrahim-Saraie, Asieh Taji, Zahra Tayebi, Hamid Heidari
OBJECTIVES: The aim of the study was to investigate the linezolid activity against clinical Gram-positive cocci with advanced antimicrobial drug resistance. METHODS: A collection of methicillin resistant Staphylococcus aureus (MRSA), vancomycin resistant enterococci (VRE), penicillin non-susceptible Streptococcus pneumoniae (PNSP), and group B streptococci (GBS) were isolated from various clinical samples. Antimicrobial susceptibility tests were done using standard methods Subsequently, we investigated linezolid antibacterial activities, the first approved oxazolidinone against isolates by the standard broth microdilution method...
July 19, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28728546/successful-rescue-combination-of-extracorporeal-membrane-oxygenation-high-frequency-oscillatory-ventilation-and-prone-positioning-for-the-management-of-severe-methicillin-resistant-staphylococcus-aureus-pneumonia-complicated-by-pneumothorax-a-case-report-and
#14
Hangyong He, Hao Wang, Xuyan Li, Xiao Tang, Rui Wang, Bing Sun, Zhaohui Tong
BACKGROUND: To describe the experience of combination therapy with extracorporeal membrane oxygenation(ECMO), high-frequency oscillatory ventilation(HFOV) and prone positioning in treating severe respiratory failure caused by community acquired methicillin resistant Staphylococcus aureus(CA-MRSA). CASE PRESENTATION: A 30-year-old female presented with fever and dyspnea for 3 days. She was diagnosed CA-MRSA pneumonia complicated by severe respiratory failure, pneumothorax and neutropenia...
July 20, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28727951/in-vitro-activity-of-telavancin-against-clinically-important-gram-positive-pathogens-from-69-u-s-medical-centers-2015-potency-analysis-by-u-s-census-divisions
#15
Michael A Pfaller, Helio S Sader, Robert K Flamm, Mariana Castanheira, Jennifer I Smart, Rodrigo E Mendes
A total of 8,072 gram-positive isolates collected from 69 medical centers among all 9 U.S. Census Divisions during the 2015 SENTRY Antimicrobial Surveillance Program were included. Telavancin had minimal inhibitory concentration (MIC)50 and MIC90 values of 0.03/0.06 μg/mL, respectively, against methicillin-susceptible (MSSA) and methicillin-resistant Staphylococcus aureus (MRSA). Similar activity was also observed among coagulase-negative staphylococci (MIC50/90, 0.03/0.06 μg/ml; 100.0% inhibited by ≤0...
July 20, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28706403/dalbavancin-use-for-the-treatment-of-methicillin-resistant-staphylococcus-aureus-pneumonia
#16
Katie E Barber, Amir Tirmizi, Richard Finley, Kayla R Stover
Dalbavancin is a lipoglycopeptide with a long half-life that allows infrequent dosing. It is indicated for the treatment of acute bacterial skin and skin structure infections caused by susceptible organisms, including Staphylococcus aureus and methicillin-resistant S. aureus (MRSA). Although this agent has been used off-label clinically, there are minimal data in infections outside the current indications. We report a case of a 28-year-old nonadherent male with HIV presenting with pneumonia due to MRSA that was treated with dalbavancin...
April 2017: Journal of Pharmacology & Pharmacotherapeutics
https://www.readbyqxmd.com/read/28702467/ceftaroline-for-severe-methicillin-resistant-staphylococcus-aureus-infections-a-systematic-review
#17
REVIEW
Reese A Cosimi, Nahal Beik, David W Kubiak, Jennifer A Johnson
Ceftaroline is approved by the Food and Drug Administration for acute bacterial skin and skin-structure infections and community-acquired bacterial pneumonia, including cases with concurrent bacteremia. Use for serious methicillin-resistant Staphylococcus aureus (MRSA) infections has risen for a multitude of reasons. The aim of this article is to review the literature evaluating clinical outcomes and safety of ceftaroline prescribed for serious MRSA infections. We conducted a literature search in Ovid (Medline) and PubMed for reputable case reports, clinical trials, and reviews focusing on the use of ceftaroline for treatment of MRSA infections...
2017: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/28701170/antimicrobial-susceptibility-among-gram-positive-and-gram-negative-organisms-collected-from-the-latin-american-region-between-2004-and-2015-as-part-of-the-tigecycline-evaluation-and-surveillance-trial
#18
Silvio Vega, Michael J Dowzicky
BACKGROUND: The in vitro activity of tigecycline and comparator agents was evaluated against Gram-positive and Gram-negative isolates collected in Latin American centers between 2004 and 2015 as part of the Tigecycline Evaluation and Surveillance Trial (T.E.S.T.) global surveillance study. METHODS: Minimum inhibitory concentrations (MICs) were determined using the broth microdilution methodology according to the Clinical and Laboratory Standards Institute (CLSI) guidelines...
July 12, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28701159/bacterial-bloodstream-infections-in-a-tertiary-infectious-diseases-hospital-in-northern-vietnam-aetiology-drug-resistance-and-treatment-outcome
#19
Vu Quoc Dat, Hieu Ngoc Vu, Hung Nguyen The, Hoa Thi Nguyen, Long Bao Hoang, Dung Vu Tien Viet, Chi Linh Bui, Kinh Van Nguyen, Trung Vu Nguyen, Dao Tuyet Trinh, Alessandro Torre, H Rogier van Doorn, Behzad Nadjm, Heiman F L Wertheim
BACKGROUND: Bloodstream infections (BSIs) are associated with high morbidity and mortality worldwide. However their aetiology, antimicrobial susceptibilities and associated outcomes differ between developed and developing countries. Systematic data from Vietnam are scarce. Here we present aetiologic data on BSI in adults admitted to a large tertiary referral hospital for infectious diseases in Hanoi, Vietnam. METHODS: A retrospective study was conducted at the National Hospital for Tropical Diseases between January 2011 and December 2013...
July 12, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28697720/early-onset-pneumonia-after-liver-transplant-microbial-causes-risk-factors-and-outcomes-mansoura-university-egypt-experience
#20
Mohammad Khairy El-Badrawy, Raed El-Metwaly Ali, Amr Yassen, Mohammad Ahmad AbouElela, Rehab Ahmad Elmorsey
OBJECTIVES: Pneumonia has a negative effect on the outcome of liver transplant. Our aim was to analyze early-onset pneumonia that developed within the first month after transplant. MATERIALS AND METHODS: This prospective single-center study included 56 adult living-donor liver transplant recipients; those who developed early-onset pneumonia based on clinical and radiologic criteria were investigated as to causative pathogens and then followed up and compared with other recipients without pneumonia to illustrate risk factors, outcomes, and related mortality of posttransplant pneumonia...
July 11, 2017: Experimental and Clinical Transplantation
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