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methicillin sensitive staphylococcus aureus

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https://www.readbyqxmd.com/read/27910164/hplc-uv-and-lc-ms-analyses-of-acylquinic-acids-in-geigeria-alata-dc-oliv-hiern-and-their-contribution-to-antioxidant-and-antimicrobial-capacity
#1
Dimitrina Zheleva-Dimitrova, Reneta Gevrenova, Maya M Zaharieva, Hristo Najdenski, Silviya Ruseva, Valentin Lozanov, Vessela Balabanova, Sakina Yagi, Georgi Momekov, Vanio Mitev
INTRODUCTION: Geigeria alata is a traditional plant used in Sudanese folk medicine for treatment of diabetes, cough, epilepsy and intestinal complaints. OBJECTIVE: To analyze phenolic acids in Geigeria alata roots and leaves and to evaluate their antioxidant and antimicrobial activities. METHODOLOGY: Phenolic acids in the aqueous-methanol extracts were identified by LC-MS. Major compounds were isolated using low-pressure liquid chromatography...
December 1, 2016: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/27907048/chemical-defence-in-a-millipede-evaluation-and-characterization-of-antimicrobial-activity-of-the-defensive-secretion-from-pachyiulus-hungaricus-karsch-1881-diplopoda-julida-julidae
#2
Slaviša Stanković, Ivica Dimkić, Ljubodrag Vujisić, Sofija Pavković-Lučić, Zvezdana Jovanović, Tatjana Stević, Ivana Sofrenić, Bojan Mitić, Vladimir Tomić
The chemical defence of the millipede Pachyiulus hungaricus is reported in the present paper, in which a chemical characterization is given and antimicrobial activity is determined. In total, independently of sex, 44 compounds were identified. All compounds belong to two groups: quinones and pentyl and hexyl esters of long-chain fatty acids. The relative abundances of quinones and non-quinones were 94.7% vs. 5.3% (males) and 87.3% vs. 12.7% (females), respectively. The two dominant quinones in both sexes were 2-methyl-1,4,-benzoquinone and 2-methoxy-3-methyl-1,4-benzoquinone...
2016: PloS One
https://www.readbyqxmd.com/read/27905624/-detection-of-the-meca-gene-in-coagulase-positive-staphylococcus-isolated-from-cats
#3
Nicolás Galarce, Loreto Muñoz, María Antonieta Jara, Paulo Lubí, Alejandra Sepúlveda, Sonia Anticevic
INTRODUCTION: Bacterial resistance is a global concern for public health. Reports of antimicrobial resistance, including that against methicillin, have increased in strains of coagulase positive Staphylococcus (CPS) isolated from pets, however in Chile this information is limited. OBJECTIVES: To determine the antimicrobial susceptibility profiles and to detect the mecA gene in CPS strains isolated from cats in Chile. MATERIALS AND METHODS: 134 samples were obtained from healthy cats and cats with skin lesions...
August 2016: Revista Chilena de Infectología: órgano Oficial de la Sociedad Chilena de Infectología
https://www.readbyqxmd.com/read/27899074/antibiotic-resistance-and-clonal-diversity-of-invasive-staphylococcus-aureus-in-the-rural-ashanti-region-ghana
#4
Denise Dekker, Manuel Wolters, Eva Mertens, Kennedy Gyau Boahen, Ralf Krumkamp, Daniel Eibach, Norbert G Schwarz, Yaw Adu-Sarkodie, Holger Rohde, Martin Christner, Florian Marks, Nimako Sarpong, Jürgen May
BACKGROUND: Staphylococcus aureus is among the most common pathogens isolated from blood cultures in Ghana; yet the epidemiology of blood infections in rural settings is poorly described. This study aims to investigate antimicrobial susceptibility and clonal diversity of S. aureus causing bloodstream infections in two hospitals in the Ashanti Region, Ghana. METHODS: Blood cultures were performed for all febrile patients (≥37.5 °C) on hospital admission. Antibiotic susceptibility testing for S...
November 29, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27898714/comparable-effectiveness-of-first-week-treatment-with-anti-staphylococcal-penicillin-versus-cephalosporin-in-methicillin-sensitive-staphylococcus-aureus-bacteremia-a-propensity-score-adjusted-retrospective-study
#5
Erik Forsblom, Eeva Ruotsalainen, Asko Järvinen
: The objective was to compare the prognostic impact of first week treatment with anti-staphylococcal penicillin (ASP) versus cephalosporin in methicillin-sensitive Staphylococcus aureus bacteremia (MS-SAB). Altogether 580 patients were retrospectively followed and categorized according to first week treatment; 84% (488) received ASP (cloxacillin) and 16% (92) cephalosporin (cefuroxime or ceftriaxone). SAB management was optimized with formal bedside infectious disease specialist consultation in 88%, deep infection foci diagnosed in 77% and adjunctive rifampicin therapy given to 61% of patients...
2016: PloS One
https://www.readbyqxmd.com/read/27895175/platelets-mediate-host-defense-against-staphylococcus-aureus-through-direct-bactericidal-activity-and-by-enhancing-macrophage-activities
#6
Ramadan A Ali, Leah M Wuescher, Keith R Dona, Randall G Worth
Platelets are the chief effector cells in hemostasis. However, recent evidence suggests they have multiple roles in host defense against infection. Reports by us and others showed that platelets functionally contribute to protection against Staphylococcus aureus infection. In the current study, the capacity of mouse platelets to participate in host defense against S. aureus infection was determined by assessing two possibilities. First, we determined the ability of platelets to kill S. aureus directly; and, second, we tested the possibility that platelets enhance macrophage phagocytosis and intracellular killing of S...
November 28, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27894984/a-longitudinal-analysis-of-methicillin-resistant-and-sensitive-staphylococcus-aureus-incidence-in-respect-to-specimen-source-patient-location-and-temperature-variation
#7
T Delorme, A Garcia, P Nasr
OBJECTIVE: Seasonal variations in temperature exert strong selective pressure on microorganism population dynamics and should be taken into account in epidemiological studies. The objective of current study was to characterize the seasonal variation of Staphylococcal infections in respect to patient location, specimen source, month of year, and temperature variation. METHOD: A retrospective longitudinal time series analysis of methicillin-resistant and sensitive S...
November 25, 2016: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/27894780/antibody-free-detection-of-infectious-bacteria-using-quantum-dots-based-barcode-assay
#8
Kristyna Cihalova, Dagmar Hegerova, Ana Maria Jimenez, Vedran Milosavljevic, Jiri Kudr, Sylvie Skalickova, David Hynek, Pavel Kopel, Marketa Vaculovicova, Vojtech Adam
Staphylococcus aureus, methicillin-resistant Staphylococcus aureus and Klebsiella pneumoniae are the most representative bacteria causing infectious diseases. Due to the increased application of antibiotics, the bacterial resistance is growing causing severe complications. Therefore, a sensitive determination of these pathogens is crucial for effective treatment. The aim of this study was to design an effective method for multiplex detection of Staphylococcus aureus, methicillin-resistant Staphylococcus aureus and Klebsiella pneumoniae taking advantage from properties of magnetic particles as well as fluorescent nanoparticles (quantum dots)...
November 5, 2016: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/27893743/trends-of-bacterial-keratitis-culture-isolates-in-jerusalem-a-13-years-analysis
#9
Michael Politis, Denise Wajnsztajn, Boris Rosin, Colin Block, Abraham Solomon
PURPOSE: To describe the trends in pathogens and antibacterial resistance of corneal culture isolates in infectious keratitis during a period of 13 years at Hadassah-Hebrew University Medical Center. METHODS: A Retrospective analysis of bacterial corneal isolates was performed during the months of January 2002 to December 2014 at Hadassah Hebrew University Medical Center. Demographics, microbiological data and antibiotic resistance and sensitivity were collected...
2016: PloS One
https://www.readbyqxmd.com/read/27888123/acute-rhinosinusitis-during-hajj-season-2014-prevalence-of-bacterial-infection-and-patterns-of-antimicrobial-susceptibility
#10
Osama A Marglani, Ameen Z Alherabi, Islam R Herzallah, Faisal A Saati, Enas A Tantawy, Talal A Alandejani, Hani S Faidah, Naif A Bawazeer, Abdullah A Marghalani, Tariq A Madani
BACKGROUND: The presence of large number of pilgrims during Hajj in Makkah region increases the risk of respiratory diseases. In this study, we aimed to assess the bacteriology of acute rhinosinusitis (ARS) during Hajj season and to demonstrate the antimicrobial susceptibility patterns that should guide the clinicians towards more appropriate antibiotic use. METHODS: Patients with ARS presenting during Hajj season of 2014 were prospectively enrolled. According to EPOS2012 criteria...
November 23, 2016: Travel Medicine and Infectious Disease
https://www.readbyqxmd.com/read/27881832/hematogenous-calcaneal-osteomyelitis-in-children-a-systematic-review-of-the-literature
#11
REVIEW
Megan L Mooney, Kirk Haidet, Jiayong Liu, Nabil A Ebraheim
: Osteomyelitis in children commonly affects long bones such as the femur, tibia, and humerus. There have been relatively few documented studies of osteomyelitis at unusual locations, such as the calcaneus. The objective of this study is to systematically review information on the diagnostic and treatment methods of calcaneal osteomyelitis as well as associated complications. Methods included research database searches using primarily PubMed and EMBASE databases. Results of the review show no clear approach to diagnosis and treatment of calcaneal osteomyelitis in children...
November 23, 2016: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/27873736/amber-necklaces-reasons-for-use-and-awareness-of-risk-associated-with-bacterial-colonisation
#12
Pauline Machet, Philippe Lanotte, Bruno Giraudeau, Marie Leperlier, Elsa Tavernier, Annabel Maruani
BACKGROUND: Parents are increasingly placing amber necklaces on their infants or toddlers to prevent teething pain. The use of the necklaces can pose a risk of death by strangulation, however, there are no data on the potential infectious risk linked to bacterial colonisation associated with the necklaces. OBJECTIVES: We aimed to analyse bacterial colonisation of amber necklaces worn by children during hospital consultations. MATERIAL & METHODS: This prospective observational study included all children wearing a teething necklace at consultation in the Paediatric Dermatology and the Paediatric Emergency Department of our hospital from April to December 2014...
November 21, 2016: European Journal of Dermatology: EJD
https://www.readbyqxmd.com/read/27866257/detection-of-methicillin-resistant-staphylococcus-aureus-using-phage-amplification-combined-with-matrix-assisted-laser-desorption-ionization-mass-spectrometry
#13
Jon C Rees, John R Barr
Antibiotic resistance continues to contribute significantly to morbidity and mortality across the world. Developing new tests for antibiotic-resistant bacteria is a core action to combat resistant infections. We describe a method that uses phage amplification detection (PAD) combined with matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) to rapidly identify Staphylococcus aureus and determine phenotypic susceptibility to cefoxitin. Samples tested for S. aureus are incubated together with bacteriophage in the presence and absence of cefoxitin and subjected to rapid trypsin digestion followed by MALDI-MS analysis...
November 19, 2016: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/27855652/performance-of-an-electronic-health-record-based-phenotype-algorithm-to-identify-community-associated-methicillin-resistant-staphylococcus-aureus-cases-and-controls-for-genetic-association-studies
#14
Kathryn L Jackson, Michael Mbagwu, Jennifer A Pacheco, Abigail S Baldridge, Daniel J Viox, James G Linneman, Sanjay K Shukla, Peggy L Peissig, Kenneth M Borthwick, David A Carrell, Suzette J Bielinski, Jacqueline C Kirby, Joshua C Denny, Frank D Mentch, Lyam M Vazquez, Laura J Rasmussen-Torvik, Abel N Kho
BACKGROUND: Community associated methicillin-resistant Staphylococcus aureus (CA-MRSA) is one of the most common causes of skin and soft tissue infections in the United States, and a variety of genetic host factors are suspected to be risk factors for recurrent infection. Based on the CDC definition, we have developed and validated an electronic health record (EHR) based CA-MRSA phenotype algorithm utilizing both structured and unstructured data. METHODS: The algorithm was validated at three eMERGE consortium sites, and positive predictive value, negative predictive value and sensitivity, were calculated...
November 17, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27852502/variability-of-surgical-site-infection-with-veptr-at-eight-centers-a%C3%A2-retrospective-cohort-analysis
#15
Sumeet Garg, Micaela Cyr, Tricia St Hilaire, Tara Flynn, Patrick Carry, Michael Glotzbecker, John T Smith, Jeffrey Sawyer, Joshua Pahys, Scott Luhmann, John M Flynn, Ron El-Hawary, Michael Vitale
STUDY DESIGN: Retrospective review. OBJECTIVES: To describe clinical characteristics and infection rates in modern vertical expandable prosthetic titanium rib (VEPTR) surgery. SUMMARY OF BACKGROUND DATA: Prior studies have demonstrated infection rates from 10% to 30% with VEPTR surgery. METHODS: A retrospective query was done on an institutional review board-approved, multicenter prospectively collected database for patients implanted with VEPTR from 2007 to 2013 at eight sites...
January 2016: Spine Deformity
https://www.readbyqxmd.com/read/27852379/-investigation-of-molecular-epidemiology-of-methicillin-resistant-staphylococcus-aureus-in-department-of-critical-care-medicine
#16
Y X Qin, Q D Li, X Y Wan, L Y Bi, J Wang
Objective: To investigate the feature of antimicrobial resistance, homology and other molecular epidemiology of methicillin-resistant staphylococcus aureus(MRSA) in Department of Critical Care Medicine(ICU). Methods: From October 2010 to December 2011, 149 strains of MRSA were collected and identified through sputum culture of patients from 10 ICUs of 10 teaching hospitals distributed in 9 chinese central city of China. Susceptibility testing to 18 kinds of antibiotic was performed, the method of pulsed field gel electrophoresis (PFGE) was used to analyze the homology, and the technique of multilocus sequencing typing (MLST) was used to identify the sequence type (ST)...
November 8, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/27844091/preoperative-staphylococcus-aureus-carriage-and-risk-of-surgical-site-infection-after-cardiac-surgery-in-children-younger-than-1%C3%A2-year-a-pilot-cohort-study
#17
J Macher, C Gras Le Guen, A Chenouard, J M Liet, B Gaillard Le Roux, A Legrand, J Mahuet, E Launay, V Gournay, N Joram
Surgical site infections (SSI) increase length of stay, morbidity, mortality and cost of hospitalization. Staphylococcus aureus (SA) carriage is a known risk factor of SSI in adults, but its role in pediatrics remains uncertain. The main objective of this pilot prospective monocentric cohort study was to describe the prevalence of SA colonization in children under 1 year old before cardiac surgery. The secondary objectives were to compare the incidence of SSI and other nosocomial infections (NI) between preoperative carriers and non-carriers...
November 14, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27834064/evaluation-of-bd-max-staph-sr-assay-for-differentiating-between-staphylococcus-aureus-and-coagulase-negative-staphylococci-and-determining-methicillin-resistance-directly-from-positive-blood-cultures
#18
Jaewoong Lee, Yeon Joon Park, Dong Jin Park, Kang Gyun Park, Hae Kyung Lee
BACKGROUND: We evaluated the performance of the BD MAX StaphSR Assay (SR assay; BD, USA) for direct detection of Staphylococcus aureus and methicillin resistance not only in S. aureus but also in coagulase-negative Staphylococci (CNS) from positive blood cultures. METHODS: From 228 blood culture bottles, 103 S. aureus [45 methicillin-resistant S. aureus (MRSA), 55 methicillin-susceptible S. aureus (MSSA), 3 mixed infections (1 MRSA+Enterococcus faecalis, 1 MSSA+MRCNS, 1 MSSA+MSCNS)], and 125 CNS (102 MRCNS, 23 MSCNS) were identified by Vitek 2...
January 2017: Annals of Laboratory Medicine
https://www.readbyqxmd.com/read/27804112/carriage-rate-and-antibiotic-susceptibility-of-coagulase-positive-staphylococci-isolated-from-healthy-dogs-in-victoria-australia
#19
D C Bean, S M Wigmore
BACKGROUND: Studies in Australia and elsewhere have shown high levels of antibiotic resistance in coagulase-positive staphylococci in dogs visiting veterinary clinics with pyoderma and related conditions. Although important, such studies tend to overestimate the burden of resistance. The aim of the current study was to investigate the prevalence of coagulase-positive staphylococci in healthy dogs in Central Victoria to assess the level of antibiotic resistance among these isolates. METHODS: We recruited 117 healthy dogs into the study...
November 1, 2016: Australian Veterinary Journal
https://www.readbyqxmd.com/read/27800290/antibiogram-of-medical-intensive-care-unit-at-tertiary-care-hospital-setting-of-pakistan
#20
Aayesha Qadeer, Aftab Akhtar, Qurat Ul Ain, Shoab Saadat, Salman Mansoor, Salman Assad, Wasib Ishtiaq, Abid Ilyas, Ali Y Khan, Yousaf Ajam
OBJECTIVE:  To determine the frequency of micro-organisms causing sepsis as well as to determine the antibiotic susceptibility and resistance of microorganisms isolated in a medical intensive care unit. MATERIALS AND METHODS:  This is a cross-sectional analysis of 802 patients from a medical intensive care unit (ICU) of Shifa International Hospital, Islamabad, Pakistan over a one-year period from August 2015 to August 2016. Specimens collected were from blood, urine, endotracheal secretions, catheter tips, tissue, pus swabs, cerebrospinal fluid, ascites, bronchoalveolar lavage (BAL), and pleural fluid...
September 29, 2016: Curēus
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