keyword
MENU ▼
Read by QxMD icon Read
search

Aureus

keyword
https://www.readbyqxmd.com/read/28342937/molecular-epidemiology-of-staphylococcus-aureus-nasal-colonization-among-patients-and-their-parents-guardian-in-an-iranian-referral-hospital
#1
Babak Pourakbari, Mahmoud Khodabandeh, Shima Mahmoudi, Farah Sabouni, Alireza Aziz-Ahari, Abbas Bahador, Sepideh Keshavarz Valian, Reihaneh Hosseinpour Sadeghi, Setareh Mamishi
INTRODUCTION: Carriage of Staphylococcus aureus in the nose appears to play a key role in the epidemiology and pathogenesis of infection. It is important to investigate the genetic relatedness of S. aureus and MRSA clones in different geographic regions. The aim of this study was to assess the nasal carriage rate of S. aureus, including MRSA strains in both hospitalized children and general adult population (parents/guardian). In addition, antibiotic susceptibility pattern and molecular diversity of S...
March 22, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28342819/ankylosis-of-the-knee-after-septic-arthritis-following-anterior-cruciate-ligament-reconstruction-in-a-13-year-old-male
#2
Bastian Mester, Falk Ullerich, Tobias Ohmann, Martin Glombitza, Christian Schoepp
We present the case of an adolescent male developing anankylosis of the knee after septic arthritis following anterior cruciate ligamentreconstruction (ACLR).The patientwas shifted to our institutionwithpostoperative septic arthritis associated with a systemic septic condition. Before, repeated arthroscopic surgery had beenconductedwithoutany improvement. MRI showed a concomitant osteomyelitis. The infection (Gächter IV, S. aureus) was controlled by an open surgical approach and graft removal.An increasing joint stiffness wasdocumented...
March 22, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28342695/in%C3%A2-vivo-serum-concentration-of-vancomycin-in-antibiotic-loaded-acrylic-cement-for-the-treatment-and-prevention-of-periprosthetic-hip-infection
#3
Kenichi Oe, Hirokazu Iida, Narumi Ueda, Tomohisa Nakamura, Naofumi Okamoto, Yusuke Ueda
BACKGROUND: Although antibiotic-loaded acrylic cement (ALAC) is used to prevent and treat periprosthetic hip infection, it is unknown how much antibiotic is deposited in the body in vivo, how high the serum concentration rises, or how long its effects last. The aim of this study was firstly to determine the amount of vancomycin (VCM) deposited as ALAC in the body, and secondly to assess the safety and drug elution profile of VCM in ALAC. METHODS: We administered VCM to prevent infection after total hip arthroplasty (THA) or to treat patients with methicillin-resistant Staphylococcus aureus...
March 22, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28342608/production-of-reuterin-in-a-fermented-milk-product-by-lactobacillus-reuteri-inhibition-of-pathogens-spoilage-microorganisms-and-lactic-acid-bacteria
#4
Y Ortiz-Rivera, R Sánchez-Vega, N Gutiérrez-Méndez, J León-Félix, C Acosta-Muñiz, D R Sepulveda
We assessed the antimicrobial activity of reuterin produced in vitro in glycerol aqueous solutions in situ by Lactobacillus reuteri ATCC 53608 as part of a fermented milk product against starter (Lactobacillus delbrueckii ssp. bulgaricus and Streptococcus thermophilus), spoilage (Penicillium expansum), pathogenic (Staphylococcus aureus, Salmonella enterica ssp. enterica, and Listeria monocytogenes), and pathogen surrogate (Escherichia coli DH5α) microorganisms. We also assayed the influence of cold storage (28 d at 4°C) and reuterin on the color and rheology of the fermented milk product...
March 22, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28340368/synthesis-molecular-docking-antimycobacterial-and-antimicrobial-evaluation-of-new-pyrrolo-3-2-c-pyridine-mannich-bases
#5
Gilish Jose, Tholappanavara H Suresha Kumara, Haliwana B V Sowmya, Dharmarajan Sriram, Tayur N Guru Row, Amar A Hosamani, Sunil S More, Bhavya Janardhan, B G Harish, Sandeep Telkar, Yalegara Siddappa Ravikumar
In this report, we describe the synthesis and biological evaluation of a new series of pyrrolo[3,2-c]pyridine Mannich bases (7a-v). The Mannich bases were obtained in good yields by one-pot three component condensation of pyrrolo[3,2-c]pyridine scaffold (6a-c) with secondary amines and excess of formaldehyde solution in AcOH. The chemical structures of the compounds were characterized by (1)H NMR, (13)C NMR, LC/MS and elemental analysis. Single crystal X-ray diffraction has been recorded for compound 7k ([C23H29ClN4](+2), H2O)...
March 16, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28340291/-head-to-head-prenyl-synthases-in-some-pathogenic-bacteria
#6
Christopher J Schwalen, Xinxin Feng, Weidong Liu, Bing O-Dowd, Tzu-Ping Ko, Christopher J Shin, Rey-Ting Guo, Douglas A Mitchell, Eric Oldfield
Many organisms contain "head-to-head" isoprenoid synthases and here, we investigate three types of such enzymes from the pathogens Neisseria meningitidis, N. gonorrhoeae, and Enterococcus hirae. The E. hirae enzyme was found to produce dehydrosqualene and we solved an inhibitor-bound structure which revealed a fold similar to that of CrtM from Staphylococcus aureus. In contrast, the homologous proteins from Neisseria spp. carried out only the "first half" reaction, yielding presqualene diphosphate (PSPP). Based on product analyses, bioinformatics, and mutagenesis we conclude that the Neisseria proteins are HpnDs (PSPP synthases)...
March 24, 2017: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/28339914/infant-colonization-with-methicillin-resistant-staphylococcus-aureus-or-vancomycin-resistant-enterococci-preceding-neonatal-intensive-care-unit-discharge
#7
Sarah A Clock, Haomiao Jia, Sameer Patel, Yu-Hui Ferng, Luis Alba, Susan Whittier, Patricia DeLaMora, Setareh Tabibi, Jeffrey Perlman, David Paul, Theoklis Zaoutis, Elaine Larson, Lisa Saiman
Rates of colonization with methicillin-resistant Staphylococcus aureus (MRSA) and/or vancomycin-resistant enterococci (VRE) were determined for 1320 infants within 7 days of neonatal intensive care unit discharge. Overall, 4% and 1% of the infants were colonized with MRSA or VRE, respectively. Predictors identified in fixed-effects models were surgery during hospitalization (for MRSA colonization) and prolonged antimicrobial treatment (for VRE colonization).
March 1, 2017: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/28339745/chronic-nasal-staphylococcus-aureus-carriage-identifies-a-subset-of-newly-diagnosed-granulomatosis-with-polyangiitis-patients-with-high-relapse-rate
#8
Anna Salmela, Niels Rasmussen, Jan Willem Cohen Tervaert, David R W Jayne, Agneta Ekstrand
Objective.: The aim of this study was to evaluate whether chronic nasal carriage of Staphylococcus aureus (SA) is related to relapses in patients with newly diagnosed ANCA-associated vasculitis (AAV). Methods.: In two clinical trials (n = 200), for early systemic (n = 83) and generalized (n = 117) AAV, nasal swabs were obtained monthly and at the time of a relapse. Chronic nasal SA carriage (CNSAC) was defined as ⩾ 75% of cultures being SA positive, with non-carriers being SA negative in all cultures and remaining patients being intermittent carriers...
February 20, 2017: Rheumatology
https://www.readbyqxmd.com/read/28339675/high-reported-rates-of-antimicrobial-resistance-in-indian-neonatal-and-pediatric-blood-stream-infections
#9
Dhanya Dharmapalan, Anita Shet, Vijay Yewale, Mike Sharland
Background.: There is real shortage of national data on antimicrobial resistance rates in Indian neonates and children. A descriptive review was conducted to determine the patterns of antimicrobial resistance in isolates of blood stream infection among hospitalized children in India. Methods.: Published and gray literature on antibiotic resistance in children was searched using "Google Scholar", "Scopus", and "PubMed" databases between January 2000 and July 2015...
February 18, 2017: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/28339496/correction-the-tir-homologue-lies-near-resistance-genes-in-staphylococcus-aureus-coupling-modulation-of-virulence-and-antimicrobial-susceptibility
#10
Sabine Patot, Paul R C Imbert, Jessica Baude, Patricia Martins Simões, Jean-Baptiste Campergue, Arthur Louche, Reindert Nijland, Michèle Bès, Anne Tristan, Frédéric Laurent, Adrien Fischer, Jacques Schrenzel, François Vandenesch, Suzana P Salcedo, Patrice François, Gérard Lina
[This corrects the article DOI: 10.1371/journal.ppat.1006092.].
March 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28338958/molecular-cloning-and-characterization-of-antimicrobial-peptides-from-skin-of-hylarana-guentheri
#11
Zhu Dong, Wenjie Luo, Hengren Zhong, Manchuriga Wang, Yanting Song, Shiming Deng, Yingxia Zhang
The cDNAs encoding antimicrobial peptides (AMPs) in the skin of Hylarana guentheri were identified, namely temporin (five peptides, termed temporin-GHa-GHd and temporin-GUa), brevinin-1 (one peptide, brevinin-1GUb), and brevinin-2 (eight peptides, brevinin-2GHd-2GHj, and brevinin-2GHb). Eleven of the 14 peptides have novel primary structures. Synthesized temporin GHa-GHd have broad-spectrum antimicrobial activities against Gram-positive bacteria (Staphylococcus aureus and Bacillus subtilis), Gram-negative bacteria (Escherichia coli, Vibrio alginolyticus, and Pseudomonas aeruginosa), as well as fungus (Candida albicans)...
March 18, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/28338786/recombination-mediated-host-adaptation-by-avian-staphylococcus-aureus
#12
Susan Murray, Ben Pascoe, Guillaume Méric, Leonardos Mageiros, Koji Yahara, Matthew D Hitchings, Yasmin Friedmann, Thomas S Wilkinson, Fraser J Gormley, Dietrich Mack, James E Bray, Sarah Lamble, Rory Bowden, Keith A Jolley, Martin C J Maiden, Sarah Wendlandt, Stefan Schwarz, Jukka Corander, J Ross Fitzgerald, Samuel K Sheppard
Staphylococcus aureus are globally disseminated among farmed chickens causing skeletal muscle infections, dermatitis and septicaemia. The emergence of poultry-associated lineages has involved zoonotic transmission from humans to chickens but questions remain about the specific adaptations that promote proliferation of chicken pathogens. We characterised genetic variation in a population of genome-sequenced S. aureus isolates of poultry and human origin. Genealogical analysis identified a dominant poultry-associated sequence cluster within the CC5 clonal complex...
February 28, 2017: Genome Biology and Evolution
https://www.readbyqxmd.com/read/28338364/indications-risk-of-lower-airway-infection-and-complications-to-pediatric-tracheotomy-report-from-a-tertiary-referral-center
#13
Christian Grønhøj, Birgitte Charabi, Christian von Buchwald, Thomas Hjuler
BACKGROUND: Although pediatric tracheotomy is potentially life-saving, the procedure is associated with high risk of complications, and indications have changed the last decade. We report indications, complications, and lower airway infections (LAIs) to pediatric tracheotomy performed at a tertiary referral center. METHODS: We identified all children (<18 years) who underwent tracheotomy at our institution during 2008-2015. A review of hospital records was performed to extract data on indication of the procedure, complications, and information on pre- and postoperative LAI...
March 24, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28337607/phenotypic-changes-of-methicillin-resistant-staphylococcus-aureus-during-vancomycin-therapy-for-persistent-bacteraemia-and-related-clinical-outcome
#14
T Kim, E S Kim, S Y Park, H Sung, M-N Kim, S-H Kim, S-O Lee, S-H Choi, J-Y Jeong, J H Woo, Y P Chong, Y S Kim
Persistent bacteraemia (PB) due to methicillin-resistant Staphylococcus aureus (MRSA) that fails to respond to glycopeptide therapy is a well-documented clinical problem. There are limited data on changes in agr functionality, vancomycin susceptibility and heteroresistance during MRSA PB. Thus, the frequency of these changes and their clinical significance remain unclear. Only patients with MRSA PB (≥7 days) from a prospective cohort of S. aureus bacteraemia were included. We collected isogenic paired strains and compared vancomycin MIC, vancomycin heteroresistance, and agr functionality between initial and final blood isolates...
March 23, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28337489/antibiotic-resistance-profiling-and-microbiota-of-the-upper-respiratory-tract-of-apparently-healthy-dogs-in-ibadan-south-west-nigeria
#15
Oluwafemi Babatunde Daodu, Elizabeth Adesola Amosun, Daniel Oladimeji Oluwayelu
BACKGROUND: Rearing of dogs and other pets has become increasingly popular in modern society. Bacterial flora resides within the nasal and oral cavities of dogs and when chanced, can be pathogenic. Certain similarities between humans and dogs portends dangerous behavioral habits that could lead to zoonotic disease transmission. This study was aimed at isolation, identification and antibiotic profiling of bacteria from nasal swabs of apparently healthy dogs. The zoonotic risk was also considered...
2017: African Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28337426/pathogen-identification-in-suspected-cases-of-pyogenic-spondylodiscitis
#16
Ahmad Farajzadeh Sheikh, Azar D Khosravi, Hamed Goodarzi, Roohangiz Nashibi, Alireaza Teimouri, Azim Motamedfar, Reza Ranjbar, Sara Afzalzadeh, Mehrandokht Cyrus, Mohammad Hashemzadeh
Pyogenic spinal infection continues to represent a worldwide problem. In approximately one-third of patients with pyogenic spondylodiscitis, the infectious agent is never identified. Of the cases that lead to organismal identification, bacteria are more commonly isolated from the spine rather than fungi and parasites. This study applied universal prokaryotic 16S rRNA PCR as a rapid diagnostic tool for the detection of bacterial agents in specimens from patients suspected of pyogenic spondylodiscitis. Gram and Ziehl-Neelsen staining were used as a preliminary screening measure for microbiologic evaluation of patient samples...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28337204/phenol-soluble-modulin-%C3%AE-peptide-toxins-from-aggressive-staphylococcus-aureus-induce-rapid-formation-of-neutrophil-extracellular-traps-through-a-reactive-oxygen-species-independent-pathway
#17
Halla Björnsdottir, Agnes Dahlstrand Rudin, Felix P Klose, Jonas Elmwall, Amanda Welin, Marios Stylianou, Karin Christenson, Constantin F Urban, Huamei Forsman, Claes Dahlgren, Anna Karlsson, Johan Bylund
Neutrophils have the ability to capture and kill microbes extracellularly through the formation of neutrophil extracellular traps (NETs). These are DNA and protein structures that neutrophils release extracellularly and are believed to function as a defense mechanism against microbes. The classic NET formation process, triggered by, e.g., bacteria, fungi, or by direct stimulation of protein kinase C through phorbol myristate acetate, is an active process that takes several hours and relies on the production of reactive oxygen species (ROS) that are further modified by myeloperoxidase (MPO)...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28337182/new-insights-into-the-anti-pathogenic-potential-of-lactococcus-garvieae-against-staphylococcus-aureus-based-on-rna-sequencing-profiling
#18
Pierre Delpech, Etienne Rifa, Graham Ball, Sabine Nidelet, Emeric Dubois, Geneviève Gagne, Marie-Christine Montel, Céline Delbès, Stéphanie Bornes
The bio-preservation potential of Lactococcus garvieae lies in its capacity to inhibit the growth of staphylococci, especially Staphylococcus aureus, in dairy products and in vitro. In vitro, inhibition is modulated by the level of aeration, owing to hydrogen peroxide (H2O2) production by L. garvieae under aeration. The S. aureus response to this inhibition has already been studied. However, the molecular mechanisms of L. garvieae underlying the antagonism against S. aureus have never been explored. This study provides evidence of the presence of another extracellular inhibition effector in vitro...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28337080/vancomycin-auc-mic-and-corresponding-troughs-in-a-pediatric-population
#19
Omayma A Kishk, Allison B Lardieri, Emily L Heil, Jill A Morgan
OBJECTIVES: Adult guidelines suggest an area under the curve/minimum inhibitory concentration (AUC/MIC) > 400 corresponds to a vancomycin trough serum concentration of 15 to 20 mg/L for methicillin-resistant Staphylococcus aureus infections, but obtaining these troughs in children are difficult. The primary objective of this study was to assess the likelihood that 15 mg/kg of vancomycin every 6 hours in a child achieves an AUC/MIC > 400. METHODS: This retrospective chart review included pediatric patients >2 months to <18 years with a positive S aureus blood culture and documented MIC who received at least two doses of vancomycin with corresponding trough...
January 2017: Journal of Pediatric Pharmacology and Therapeutics: JPPT: the Official Journal of PPAG
https://www.readbyqxmd.com/read/28336786/-18-f-fdg-pet-ct-optimizes-treatment-in-staphylococcus-aureus-bacteremia-and-is-associated-with-reduced-mortality
#20
Marvin A H Berrevoets, Ilse J E Kouijzer, Erik H J G Aarntzen, Marcel J R Janssen, Lioe-Fee De Geus-Oei, Heiman F L Wertheim, Bart-Jan Kullberg, Jaap Ten Oever, Wim J G Oyen, Chantal P Bleeker-Rovers
Metastatic infection is an important complication of Staphylococcus aureus bacteremia (SAB). Early diagnosis of metastatic infection is crucial, as specific treatment is required. However, metastatic infection can be asymptomatic and difficult to detect. In this study, we investigated the role of (18)F-FDG-PET/CT in patients with SAB for detection of metastatic infection and its consequences for treatment and outcome. Methods: All patients with SAB at Radboud university medical center were included between January 2013 and April 2016...
March 23, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
keyword
keyword
11019
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"