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https://www.readbyqxmd.com/read/28225917/oxacillin-magnetically-targeted-for-the-treatment-of-methicillin-resistant-s-aureus-infection-in-rats
#1
Juliana Fernandes de Carvalho, Ítalo Medeiros de Azevedo, Keyla Borges Ferreira Rocha, Aldo Cunha Medeiros, Artur da Silva Carriço
Purpose: To evaluate the effect of oxacillin bonded to magnetic nanoparticles in local infection model in rat. Methods: Twelve Wistar rats weighing 290±18g were randomly divided into four groups (n=6, each) and all rats had a magnet ring sutured on their right thighs. In the biodistribution group rats 0.1mL of 99mTc-magnetite (0.66 MBq) was injected i.v and after 30 minutes, biodistribution of 99mTc-magnetite was evaluated in right and left thighs. The other groups were inoculated with MRSA in each thigh muscles...
January 2017: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/28216296/cyclodextrin-modified-plla-parietal-reinforcement-implant-with-prolonged-antibacterial-activity
#2
G Vermet, S Degoutin, F Chai, M Maton, C Flores, C Neut, P E Danjou, B Martel, N Blanchemain
: The use of textile meshes in hernia repair is widespread in visceral surgery. Though, mesh infection is a complication that may prolong the patient recovery period and consequently presents an impact on public health economy. Such concern can be avoided thanks to a local and extended antibiotic release on the operative site. In recent developments, poly-L-lactic acid (PLLA) has been used in complement of polyethyleneterephthalate (Dacron(®)) (PET) or polypropylene (PP) yarns in the manufacture of semi-resorbable parietal implants...
February 12, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28216018/prospective-randomised-controlled-study-evaluating-early-modification-of-oral-microbiota-following-admission-to-the-intensive-care-unit-and-oral-hygiene-with-chlorhexidine
#3
Felipe Francisco Tuon, Oleg Gavrilko, Saulo de Almeida, Eigi Ricardo Sumi, Thiago Alberto, Jaime Luis Rocha, Edvaldo Antonio Rosa
OBJECTIVES: Chlorhexidine (CHX) is the most commonly used oral hygiene product for the prevention of ventilator-associated pneumonia (VAP) in patients undergoing mechanical ventilation (MV). The change in dental plaque (DP) microbiota following CHX use in patients under MV has not been described previously. The aim of this study was to evaluate the incidence of pathogenic bacteria associated with VAP and the coverage of DP within the oral cavity in patients administered CHX. METHODS: This was a prospective, randomised, controlled, double-blind study in patients (n=16) under MV who were mouth-rinsed with either CHX or placebo...
February 18, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28216007/microbiological-quality-of-pastrami-and-associated-surfaces-at-the-point-of-sale-in-kayseri-turkey
#4
Y Yildirim, N Ertas Onmaz, Z Gonulalan, S Al, A Yildirim, F Karadal, H Hizlisoy, Ş Pamuk
OBJECTIVE: The aim of this study is to trace the possible relations between the hygienic status of slicing utensils and the microbiological quality of pastrami. STUDY DESIGN: A total of 75 pastrami retail markets were visited in Kayseri, Turkey, where the pastrami (a ready-to-eat meat product) is commonly produced and consumed. Sliced pastrami, the cutting board and knife surface swabs were collected from each pastrami retail point to trace possible sources of contamination...
February 16, 2017: Public Health
https://www.readbyqxmd.com/read/28215714/microbiological-effect-of-mupirocin-and-chlorhexidine-for-staphylococcus-aureus-decolonization-in-community-and-nursing-home-based-adults
#5
Mary-Claire Roghmann, Alison D Lydecker, Patricia Langenberg, Emmanuel F Mongodin, J Kristie Johnson
OBJECTIVE: To compare the presence of Staphylococcus aureus and pathogenic Gram-negative rods (GNR) in the anterior nares, posterior pharynx and three skin sites in community-based adults and nursing home-based adults before and after treatment with nasal mupirocin and topical chlorhexidine. METHODS: S. aureus-colonized adults were recruited from the community (n=26) and from nursing homes (n=8). Eligible participants were cultured for S. aureus and GNR during two study visits and then received intranasal mupirocin and topical chlorhexidine for 5days, with a 2-month follow-up period...
February 13, 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/28214695/the-effects-of-atmospheric-pressure-cold-plasma-treatment-on-microbiological-physical-chemical-and-sensory-characteristics-of-vacuum-packaged-beef-loin
#6
A Bauer, Y Ni, S Bauer, P Paulsen, M Modic, J L Walsh, F J M Smulders
Effects on vacuum packaged and non-packaged beef longissimus samples exposed to atmospheric cold plasma (ACP) generated at different powers were studied over a 10day period of vacuum-, and a subsequent 3day period of aerobic storage. Exposure of non-covered beef samples under high power ACP conditions resulted in increased a*, b*, Chroma and Hue values, but ACP treatment of packaged loins did not impact colour (L*, a*, b*, Chroma, Hue), lipid peroxidation, sarcoplasmic protein denaturation, nitrate/nitrite uptake, or myoglobin isoform distribution...
February 8, 2017: Meat Science
https://www.readbyqxmd.com/read/28185802/infection-in-burn-patients-in-a-referral-center-in-colombia
#7
Carlos Enrique Ramirez-Blanco, Carlos Enrique Ramirez-Rivero, Luis Alfonso Diaz-Martinez, Luis Miguel Sosa-Avila
INTRODUCTION: Worldwide, burns are responsible for more than 300,000 deaths annually; infection is a major cause of morbidity and mortality in these patients. Early identification and treatment of infection improves outcome. Toward this end it's necessary to identify the institutions flora and organisms that most frequently produces infection. OBJECTIVES: To characterize infections developed by burn patients hospitalized at the University Hospital of Santander (HUS)...
February 6, 2017: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/28183599/electrospun-curcumin-loaded-cellulose-acetate-polyvinylpyrrolidone-fibrous-materials-with-complex-architecture-and-antibacterial-activity
#8
Petya B Tsekova, Mariya G Spasova, Nevena E Manolova, Nadya D Markova, Iliya B Rashkov
Novel fibrous materials from cellulose acetate (CA) and polyvinylpyrrolidone (PVP) containing curcumin (Curc) with original design were prepared by one-pot electrospinning or dual spinneret electrospinning. The electrospun materials were characterized by scanning electron microscopy (SEM), fluorescence microscopy, Fourier transform infrared spectroscopy (FTIR), ultraviolet-visible spectroscopy (UV-Vis), differential scanning calorimetry (DSC), water contact angle measurements, and microbiological tests. It was found that the incorporation of Curc into the CA and PVP solutions resulted in an increase of the solution viscosity and obtaining fibers with larger diameters (ca...
April 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28174104/new-1-4-dihydro-1-8-naphthyridine-derivatives-as-dna-gyrase-inhibitors
#9
Hülya Karaca Gençer, Serkan Levent, Ulviye Acar Çevik, Yusuf Özkay, Sinem Ilgın
Owing to the growing need for novel antibacterial agents, we synthesized a novel series of fluoroquinolones including 7-substituted-1-(2,4-difluorophenyl)-6-fluoro-4-oxo-1,4-dihydro[1,8]naphthyridine-3-carboxylic acid derivatives, which were tested against clinically relevant Gram positive and Gram negative bacteria. Chemical structures of the synthesized compounds were identified using spectroscopic methods. In vitro antimicrobial effects of the compounds were determined via microdilution assay. Microbiological examination revealed that compounds 13 and 14 possess a good antibacterial profile...
January 26, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28167588/prevalence-of-staphylococcus-aureus-nasal-carriage-in-human-immunodeficiency-virus-infected-and-uninfected-children-in-botswana-prevalence-and-risk-factors
#10
Michael J A Reid, Rebecca S B Fischer, Naledi Mannathoko, Charles Muthoga, Erin McHugh, Heather Essigmann, Eric L Brown, Andrew P Steenhoff
Staphylococcus aureus is an important cause of morbidity and mortality in children in sub-Saharan Africa (SSA). A major risk factor for staphylococcal infection is S. aureus colonization of the anterior nares. We sought to define risk factors for S. aureus carriage and characterize antimicrobial resistance patterns in children in Botswana. A cross-sectional study was conducted at two clinical sites in southern Botswana. Patients under 18 years of age underwent two nasal swabs and brief interviews, 4 weeks apart...
February 6, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28164010/epidemiological-and-mortality-trends-in-infective-endocarditis-a-17-year-population-based-prospective-study
#11
Alberto Cresti, Mario Chiavarelli, Marco Scalese, Cesira Nencioni, Silvia Valentini, Francesco Guerrini, Incoronata D'Aiello, Andrea Picchi, Francesco De Sensi, Gilbert Habib
BACKGROUND: The population at risk, the clinical and microbiological features of infective endocarditis (IE) have changed. Aim of our study was to evaluate the contemporary epidemiological trends, over a 17-year period in a definite region of Tuscany, Italy, to analyze the clinical outcomes and associated prognostic factors. METHODS: From 1 January 1998 to 31 December 2014, all patients with a definite diagnosis of IE were prospectively entered in a data-base. The Health-Care system data-base was interrogated to capture patients who could have been missed...
February 2017: Cardiovascular Diagnosis and Therapy
https://www.readbyqxmd.com/read/28154581/detection-of-methicillin-resistant-staphylococcus-aureus-and-determination-of-minimum-inhibitory-concentration-of-vancomycin-for-staphylococcus-aureus-isolated-from-pus-wound-swab-samples-of-the-patients-attending-a-tertiary-care-hospital-in-kathmandu-nepal
#12
Raghabendra Adhikari, Narayan Dutt Pant, Sanjeev Neupane, Mukesh Neupane, Roshan Bhattarai, Sabita Bhatta, Raina Chaudhary, Binod Lekhak
The present study was conducted to evaluate the performance of cefoxitin disc diffusion method and oxacillin broth microdilution method for detection of methicillin resistant S. aureus (MRSA), taking presence of mecA gene as reference. In addition, inducible clindamycin resistance and beta-lactamase production were studied and minimum inhibitory concentration (MIC) of vancomycin for S. aureus isolates was determined. A total of 711 nonrepeated pus/wound swab samples from different anatomic locations were included in the study...
2017: Canadian Journal of Infectious Diseases & Medical Microbiology
https://www.readbyqxmd.com/read/28153966/effect-of-uv-light-on-disinfection-of-peritoneal-dialysis-catheter-connections
#13
John Ashley, Julia A Rasooly, Ian Tran, Lawrence E Yost, Glenn M Chertow
We evaluated the microbiological performance of an ultraviolet (UV) light-based peritoneal dialysis catheter connection system. The system includes a UV light-generating device combined with a UV transmissive window incorporated into the transfer set. Each UV transparent transfer set was inoculated with 10 μL of cultured inoculum consisting of either S. aureus, E. coli, or C. albicans After being inoculated, we attached a solution set connector to the transfer catheter, and exposed that connection to a UV light dose of approximately 340 mJoules/cm(2) After exposure to UV light, we broke the seal of the solution set and opened the plunger valve on the UV transmissive transfer catheter...
January 2017: Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis
https://www.readbyqxmd.com/read/28153582/changing-trends-in-antimicrobial-susceptibility-pattern-of-bacterial-isolates-in-a-burn-unit
#14
Narendra Pal Singh, Mayuri Rani, Kavita Gupta, Tanu Sagar, Iqbal Rajinder Kaur
INTRODUCTION: Emerging antimicrobial resistance in nosocomial bacterial isolates, limits the available treatment options for burn wound infections, among them multi-drug resistant Gram negative bacteria and methicillin-resistant Staphylococcus aureus (MRSA) are major contributors to the increase in morbidity and mortality rates. MATERIAL AND METHODS: A retrospective cross-sectional study was done in the Department of Microbiology, University College of Medical Sciences & Guru Teg Bahadur Hospital, Delhi...
January 30, 2017: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/28142193/staphylococcus-aureus-biofilm-a-complex-developmental-organism
#15
REVIEW
Derek E Moormeier, Kenneth W Bayles
Chronic biofilm-associated infections caused by Staphylococcus aureus often lead to significant increases in morbidity and mortality, particularly when associated with indwelling medical devices. This has triggered a great deal of research attempting to understand the molecular mechanisms that control S. aureus biofilm formation and the basis for the recalcitrance of these multicellular structures to antibiotic therapy. The purpose of this review is to summarize our current understanding of S. aureus biofilm development, focusing on the description of a newly-defined, five-stage model of biofilm development and the mechanisms required for each stage...
January 31, 2017: Molecular Microbiology
https://www.readbyqxmd.com/read/28139543/antibiotic-resistance-pathogen-profile-in-ventilator-associated-pneumonia-in-a-tertiary-care-hospital-in-india
#16
Abhijit Chaudhury, A Shobha Rani, Usha Kalawat, Sachin Sumant, Anju Verma, B Venkataramana
BACKGROUND & OBJECTIVES: Ventilator-associated pneumonia (VAP) is an important hospital-acquired infection with substantial mortality. Only a few studies are available from India addressing the microbiological aspects of VAP, which have been done with small study populations. This study was carried out in the intensive care units (ICUs) of a tertiary care hospital to assess the profile of pathogens and to determine the pattern of antimicrobial resistance. METHODS: This was a retrospective study of clinically suspected cases of VAP...
September 2016: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/28127988/staphylococcus-aureus-nasal-colonization-among-hiv-infected-adults-in-botswana-prevalence-and-risk-factors
#17
Michael J A Reid, Andrew P Steenhoff, Naledi Mannathoko, Charles Muthoga, Erin McHugh, Eric L Brown, Rebecca S B Fischer
We sought to determine the clinical and epidemiologic determinants of Staphylococcus aureus nasal colonization in HIV-infected individuals at two outpatient centers in southern Botswana. Standard microbiologic techniques were used to identify S. aureus and methicillin-resistant S. aureus (MRSA). In a sample of 404 HIV-infected adults, prevalence of S. aureus nasal carriage was 36.9% (n = 152) and was associated with domestic overcrowding and lower CD4 cell count. MRSA prevalence was low (n = 13, 3.2%), but more common among individuals with asthma and eczema...
January 27, 2017: AIDS Care
https://www.readbyqxmd.com/read/28124968/-accurate-diagnosis-of-pseudomonas-luteola-in-routine-microbiology-laboratory-on-the-occasion-of-two-isolates
#18
Muharrem Çiçek, Gülşen Hasçelik, H Kaan Müştak, K Serdar Diker, Burçin Şener
Pseudomonas luteola which was previously known as Chryseomonas luteola; is a gram-negative, non-fermentative, aerobic, motile, non-spore-forming bacillus. It is frequently found as a saprophyte in soil, water and other damp environments and is an opportunistic pathogen in patients with underlying medical disorders or with indwelling catheters. It has been reported as an uncommon cause of bacteremia, sepsis, septic arthritis, meningitis, endocarditis, and peritonitis. Thus, early and accurate identification of this rare species is important for the treatment and also to provide information about the epidemiology of P...
October 2016: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/28088924/microbiology-of-otitis-media-in-indigenous-australian-children-review
#19
J Jervis-Bardy, A S Carney, R Duguid, A J Leach
OBJECTIVES: To review research addressing the polymicrobial aetiology of otitis media in Indigenous Australian children in order to identify research gaps and inform best practice in effective prevention strategies and therapeutic interventions. METHODS: Literature review. RESULTS: Studies of aspirated middle-ear fluid represented a minor component of the literature reviewed. Most studies relied upon specimens from middle-ear discharge or the nasopharynx...
January 16, 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/28088662/metabolic-profiles-of-exudates-from-chronic-leg-ulcerations
#20
Adam Junka, Wojciech Wojtowicz, Adam Ząbek, Grzegorz Krasowski, Danuta Smutnicka, Barbara Bakalorz, Agnieszka Boruta, Mariusz Dziadas, Piotr Młynarz, Parish Paymon Sedghizadeh, Marzenna Bartoszewicz
Chronic leg ulceration is a disease usually associated with other comorbidities, and significantly reduces patient quality of life. Infected leg ulcers can lead to limb-threatening sequelae or mortality. Leg ulcerations are colonized by a number of microbes that are able to cause life-threating infections in susceptible patients. Wound exudate is a body fluid that collects metabolites from patient eukaryotic cells and from prokaryotic bacterial communities inhabiting the wound. This study aimed at identification of metabolites in exudates collected from chronic leg ulcers, and correlation of this metabolome with patient comorbidities and microbiological status of the wound...
January 10, 2017: Journal of Pharmaceutical and Biomedical Analysis
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