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Vancomycin Antibiotic

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https://www.readbyqxmd.com/read/28821529/antibiotic-susceptibility-profiles-of-ocular-and-nasal-flora-in-patients-undergoing-cataract-surgery-in-taiwan-an-observational-and-cross-sectional-study
#1
Yun-Hsuan Lin, Yu-Chuan Kang, Chiun-Ho Hou, Yhu-Chering Huang, Chih-Jung Chen, Jwu-Ching Shu, Pang-Hsin Hsieh, Ching-Hsi Hsiao
OBJECTIVE: To investigate the conjunctival and nasal flora and the antibiotic susceptibility profiles of isolates from patients undergoing cataract surgery. DESIGN: Observational and cross-sectional study. SETTING: A single-centre study in Taiwan. PARTICIPANTS: 128 consecutive patients precataract surgery. PRIMARY AND SECONDARY OUTCOME MEASURES METHODS: Conjunctival and nasal cultures were prospectively obtained from 128 patients on the day of cataract surgery before instillation of ophthalmic solutions in our hospital...
August 18, 2017: BMJ Open
https://www.readbyqxmd.com/read/28821436/carbon-quantum-dot-tailored-calcium-alginate-hydrogel-for-ph-responsive-controlled-delivery-of-vancomycin
#2
Niladri Sarkar, Gyanaranjan Sahoo, Rashmita Das, Gyanaranjan Prusty, Sarat K Swain
Herein, we demonstrate the preparation of highly luminescent carbon quantum dots (CQDs) from Aloe vera leaf gel; in just 2h at 250°C through carbonization pathway. The prepared CQDs are structurally characterized with high resolution transmission electron microscopy (HRTEM), hydrodynamic diameter and surface polarity, Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), Raman, UV-visible absorption spectrophotometry and fluorescence spectroscopy. The functional carbon nanoparticles are observed as non-cytotoxic materials...
August 15, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28821080/investigation-of-chitosan-s-antibacterial-activity-against-vancomycin-resistant-microorganisms-and-their-biofilms
#3
Eduardo M Costa, Sara Silva, Mariana Veiga, Sandra Vicente, Freni K Tavaria, Manuela E Pintado
Vancomycin-resistant microorganisms are a hurdle that traditional antibiotics struggle to overcome. These difficulties have led to search for new solutions based on natural products. Chitosan has been recognized as an effective antibacterial agent against a vast array of microorganisms including antibiotic resistant ones. As such, this work aimed to evaluate chitosan as an alternative to traditional antibiotics in the management/control of two vancomycin-resistant microorganisms, VRSA and VREF, in planktonic and sessile settings...
October 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28814382/predictive-utility-of-swab-screening-for-vancomycin-resistant-enterococcus-in-selection-of-empiric-antibiotics-for-enterococcus-sterile-site-infections-a-retrospective-cohort-study
#4
Ian Brasg, Marion Elligsen, Derek MacFadden, Nick Daneman
BACKGROUND: Swab screening for vancomycin-resistant Enterococcus (VRE) is used to identify VRE carriers and thus prevent transmission of this organism. We tested whether screening results could have unintended benefits in predicting the vancomycin susceptibility of subsequent Enterococcus infections experienced by these patients. METHODS: We conducted a retrospective cohort study of all patients admitted to a large tertiary care hospital between 2010 and 2015 who underwent swab screening for VRE before experiencing an Enterococcus sterile-site infection...
August 15, 2017: CMAJ Open
https://www.readbyqxmd.com/read/28814344/microbial-phylogeny-determines-transcriptional-response-of-resistome-to-dynamic-composting-processes
#5
Cheng Wang, Da Dong, P J Strong, Weijing Zhu, Zhuang Ma, Yong Qin, Weixiang Wu
BACKGROUND: Animal manure is a reservoir of antibiotic resistance genes (ARGs) that pose a potential health risk globally, especially for resistance to the antibiotics commonly used in livestock production (such as tetracycline, sulfonamide, and fluoroquinolone). Currently, the effects of biological treatment (composting) on the transcriptional response of manure ARGs and their microbial hosts are not well characterized. Composting is a dynamic process that consists of four distinct phases that are distinguished by the temperature resulting from microbial activity, namely the mesophilic, thermophilic, cooling, and maturing phases...
August 16, 2017: Microbiome
https://www.readbyqxmd.com/read/28814204/faecal-microbiota-transplantation-for-em-clostridium-difficile-em-associated-diarrhoea-a-systematic-review-of-randomised-controlled-trials
#6
Paul Moayyedi, Yuhong Yuan, Harith Baharith, Alexander C Ford
OBJECTIVES: Faecal microbiota transplantation (FMT) has emerged as a useful approach for treating Clostridium difficile-associated diarrhoea (CDAD). Randomised controlled trials (RCTs) have recently evaluated its effectiveness, but systematic reviews have focused on evidence from case series. We therefore conducted a systematic review and meta-analysis of RCTs evaluating the effectiveness of FMT for treating CDAD. STUDY DESIGN: We included RCTs that primarily recruited adults with CDAD and compared the effectiveness of FMT with that of placebo, antibiotic therapy, or autologous stool transplantation, or compared different preparations or modes of delivery of FMT...
August 21, 2017: Medical Journal of Australia
https://www.readbyqxmd.com/read/28813773/a-case-of-ivig-induced-aseptic-chemical-meningitis
#7
Anish Patel, Kalyan Chakravarthy Potu, Tamera Sturm
Intravenous immunoglobulin (IVIG) is a commonly used and generally well-tolerated medication. Common side effects include flu-like symptoms such as fevers, headaches, myalgia, fatigue, and nausea. One of the more rare side effects is aseptic meningitis, with a reported incidence rate of around 0.067 percent of all IVIG infusions. In this paper, we describe a 47-year-old female patient with a history of myasthenia gravis who presented with a headache, neck pain, and neck stiffness while undergoing IVIG infusions for a myasthenia crisis...
March 2017: South Dakota Medicine: the Journal of the South Dakota State Medical Association
https://www.readbyqxmd.com/read/28813751/superior-ophthalmic-vein-thrombosis-the-role-of-anticoagulation
#8
Samuel Thomsen, Eric Larson, Michael Greenwood
PURPOSE: To report a case of superior ophthalmic vein thrombosis (SOVT) and review the available literature to assess if anticoagulation is warranted in all cases of SOVT. OBSERVATIONS: The patient presented to an outside hospital facility with a severe headache involving the left frontal temporal area. This progressed to left-sided ptosis and facial droop. Magnetic resonance imaging revealed a left SOVT secondary to sphenoid sinusitis. Treatment was initiated with vancomycin and cefepime, and the patient was transferred to our tertiary care center for further management...
May 2017: South Dakota Medicine: the Journal of the South Dakota State Medical Association
https://www.readbyqxmd.com/read/28813664/intestinal-dysbiosis-and-biotin-deprivation-induce-alopecia-through-overgrowth-of-lactobacillus-murinus-in-mice
#9
Atsushi Hayashi, Yohei Mikami, Kentaro Miyamoto, Nobuhiko Kamada, Toshiro Sato, Shinta Mizuno, Makoto Naganuma, Toshiaki Teratani, Ryo Aoki, Shinji Fukuda, Wataru Suda, Masahira Hattori, Masayuki Amagai, Manabu Ohyama, Takanori Kanai
Metabolism by the gut microbiota affects host physiology beyond the gastrointestinal tract. Here, we find that antibiotic-induced dysbiosis, in particular, overgrowth of Lactobacillus murinus (L. murinus), impaired gut metabolic function and led to the development of alopecia. While deprivation of dietary biotin per se did not affect skin physiology, its simultaneous treatment with vancomycin resulted in hair loss in specific pathogen-free (SPF) mice. Vancomycin treatment induced the accumulation of L. murinus in the gut, which consumes residual biotin and depletes available biotin in the gut...
August 15, 2017: Cell Reports
https://www.readbyqxmd.com/read/28813477/colonization-prevalence-and-antibiotic-susceptibility-of-group-b-streptococcus-in-pregnant-women-over-a-6-year-period-in-dongguan-china
#10
Wenjing Ji, Lihua Zhang, Zhusheng Guo, Shujin Xie, Weiqing Yang, Junjian Chen, Jiamin Wang, Zhiqin Cheng, Xin Wang, Xuehai Zhu, Jianwen Wang, Haiqing Wang, Juan Huang, Ning Liang, David J McIver
This study investigated the prevalence of recto-vaginal Group B Streptococcus (GBS) colonization, serotype distribution, and antimicrobial susceptibility patterns among pregnant women in Dongguan, China. Recto-vaginal swabs were collected from pregnant women at gestational age 35-37 weeks between January 1st 2009 and December 31st 2014. Isolates were serotyped by latex-agglutination and were tested against seven antimicrobials by disk diffusion. Of 7,726 pregnant women who completed GBS testing, 636 (8.2%) were GBS carriers...
2017: PloS One
https://www.readbyqxmd.com/read/28807918/relationships-of-vancomycin-pharmacokinetics-to-body-size-and-composition-by-computed-tomography-analysis-a-novel-pharmacomorphomic-approach
#11
Manjunath P Pai, Brian A Derstine, Matt Lichty, Brian E Ross, June Sullivan, Grace L Su, Stewart C Wang
Antibiotics such as vancomycin are empirically dosed on body weight, which may not be optimal across the expanding adult body size distribution. Our aim was to compare the relationships between morphomic parameters generated from computed tomography images to conventional body size metrics as predictors of vancomycin pharmacokinetics (PK). This single center retrospective study included 300 patients with 1622 vancomycin concentration (52% trough) measurements. Bayesian estimation was used to compute individual vancomycin volume of distribution of the central compartment (Vc) and clearance (CL)...
August 14, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28798845/vancomycin-resistant-gene-identification-from-live-bacteria-on-an-integrated-microfluidic-system-by-using-low-temperature-lysis-and-loop-mediated-isothermal-amplification
#12
Wen-Hsin Chang, Ju-Ching Yu, Sung-Yi Yang, Yi-Cheng Lin, Chih-Hung Wang, Huey-Ling You, Jiunn-Jong Wu, Mel S Lee, Gwo-Bin Lee
Vancomycin-resistant Enterococcus (VRE) is a kind of enterococci, which shows resistance toward antibiotics. It may last for a long period of time and meanwhile transmit the vancomycin-resistant gene (vanA) to other bacteria. In the United States alone, the resistant rate of Enterococcus to vancomycin increased from a mere 0.3% to a whopping 40% in the past two decades. Therefore, timely diagnosis and control of VRE is of great need so that clinicians can prevent patients from becoming infected. Nowadays, VRE is diagnosed by antibiotic susceptibility test or molecular diagnosis assays such as matrix-assisted laser desorption ionization/time-of-flight mass spectrometry and polymerase chain reaction...
March 2017: Biomicrofluidics
https://www.readbyqxmd.com/read/28797875/success-rates-characteristics-and-costs-of-articulating-antibiotic-spacers-for-total-knee-periprosthetic-joint-infection
#13
Scott R Nodzo, Keely K Boyle, Sara Spiro, Allina A Nocon, Andy O Miller, Geoffrey H Westrich
BACKGROUND: The optimal type, characteristics, and success rates of articulating antibiotic spacers used during total knee arthroplasty (TKA) periprosthetic joint infection (PJI) have not been well defined in a single series. We sought to (1) determine the success rate for three unique spacer constructs and (2) evaluate any microbiological, surgical, or patient characteristics that would influence the success rate. METHODS: We retrospectively reviewed patients who underwent a two-stage exchange for a TKA PJI with a prefabricated spacer (PREFAB), home-made mold (MOLD), or autoclaved femoral component (AUTOCL)...
August 8, 2017: Knee
https://www.readbyqxmd.com/read/28797573/digestive-decontamination-in-burn-patients-a-systematic-review-of-randomized-clinical-trials-and-observational-studies
#14
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/28797064/bacteriological-profiling-of-diphenylureas-as-a-novel-class-of-antibiotics-against-methicillin-resistant-staphylococcus-aureus
#15
Haroon Mohammad, Waleed Younis, Hany G Ezzat, Christine E Peters, Ahmed AbdelKhalek, Bruce Cooper, Kit Pogliano, Joe Pogliano, Abdelrahman S Mayhoub, Mohamed N Seleem
Bacterial resistance to antibiotics remains an imposing global public health challenge. Of the most serious pathogens, methicillin-resistant Staphylococcus aureus (MRSA) is problematic given strains have emerged that exhibit resistance to several antibiotic classes including β-lactams and agents of last resort such as vancomycin. New antibacterial agents composed of unique chemical scaffolds are needed to counter this public health challenge. The present study examines two synthetic diphenylurea compounds 1 and 2 that inhibit growth of clinically-relevant isolates of MRSA at concentrations as low as 4 µg/mL and are non-toxic to human colorectal cells at concentrations up to 128 μg/mL...
2017: PloS One
https://www.readbyqxmd.com/read/28797044/what-can-we-learn-from-sonication-results-of-breast-implants
#16
Frederike M J Reischies, Robert Krause, Judith Holzer, Fabian Tiefenbacher, Raimund Winter, Gertraud Eylert, Tobias Meikl, Alexandru Tuca, Martin J Köfer, Lars P Kamolz, David B Lumenta
BACKGROUND: Different research groups have identified microorganisms on breast implants by sonication with significant correlation to the rate of capsular contracture. This substantiated the hypothesis of an infectious etiology of capsular contracture. However, no clinical consequence has been drawn from these results yet. Aim of this study was to review sonication results from breast implants and to evaluate the current preoperative antibiotic regime for breast-implant surgery. METHODS: We compared breast implant sonication culture results from published reports and our own database...
2017: PloS One
https://www.readbyqxmd.com/read/28794800/genome-characterization-of-a-novel-binary-toxin-positive-strain-of-clostridium-difficile-and-comparison-with-the-epidemic-027-and-078-strains
#17
Zhong Peng, Sidi Liu, Xiujuan Meng, Wan Liang, Zhuofei Xu, Biao Tang, Yuanguo Wang, Juping Duan, Chenchao Fu, Bin Wu, Anhua Wu, Chunhui Li
BACKGROUND: Clostridium difficile is an anaerobic Gram-positive spore-forming gut pathogen that causes antibiotic-associated diarrhea worldwide. A small number of C. difficile strains express the binary toxin (CDT), which is generally found in C. difficile 027 (ST1) and/or 078 (ST11) in clinic. However, we isolated a binary toxin-positive non-027, non-078 C. difficile LC693 that is associated with severe diarrhea in China. The genotype of this strain was determined as ST201. To understand the pathogenesis-basis of C...
2017: Gut Pathogens
https://www.readbyqxmd.com/read/28792642/wastewater-pollution-differently-affects-the-antibiotic-resistance-gene-pool-and-biofilm-bacterial-communities-across-streambed-compartments
#18
Jèssica Subirats, Xavier Triadó-Margarit, Ladislav Mandaric, Vicenç Acuña, José Luis Balcázar, Sergi Sabater, Carles M Borrego
Wastewater discharges introduce antibiotic residues and antibiotic-resistant bacteria (ARB) into surface waters. Both inputs directly affect the streambed resistome, either by exerting a selective pressure that favor the proliferation of resistant phenotypes or by enriching the resident communities with wastewater-associated ARB. Here, we investigated the impact of raw and treated urban wastewater discharges on epilithic (growing on rocks) and epipsammic (growing on sandy substrata) streambed biofilms. The effects were assessed by comparing control and impact sites i) on the composition of bacterial communities; ii) on the abundance of twelve antibiotic resistance genes (ARGs) encoding resistance to β-lactams, fluoroquinolones, sulfonamides, tetracyclines, macrolides and vancomycin, as well as the class 1 integron-integrase gene (intI1); and iii) on the occurrence of wastewater-associated bacteria, including putative pathogens, and their potential linkage to target ARGs...
August 9, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28789605/analysis-of-distribution-and-antibiotic-resistance-of-pathogens-isolated-from-the-paediatric-population-in-shenmu-hospital-from-2011-2015
#19
Yang Hui-Min, Wang Yan-Ping, Yong Lin Liu, Bilal Haider Shamsi, He Bo, Meng Xu-Chun
Objective This study aimed to investigate the epidemiology and changes in antibacterial susceptibility of children in Shenmu City, northern Shaanxi, and provide a basis for rational drug use. Methods The distribution and drug resistance pattern of pathogenic bacteria isolated from children were retrospectively analysed. Results A total of 573 strains of pathogens were cultivated. A total of 201 (35.07%) strains of Gram-positive cocci and 183 (31.93%) strains of Gram-negative cocci were detected. A total of 189 (32...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28782933/new-insights-into-antibiofilm-effect-of-a-nanosized-zno-coating-against-the-pathogenic-methicillin-resistant-staphylococcus-aureus
#20
Marta M Alves, Ons Bouchami, Ana Tavares, Laura Córdoba, Catarina F Santos, Maria Miragaia, Maria de Fátima Montemor
ZnO nanoparticles (NPs) are arising as promising novel antibiotics toward device-related infections. The surface functionalization of Zn, a novel resorbable biomaterial, with ZnO NPs could present an effective solution to overcome such a threat. In this sense, the antibacterial and antibiofilm activity of nano- and microsized ZnO coatings was studied against clinically relevant bacteria, methicillin resistant Staphylococcus aureus (MRSA). The bacterial viability of planktonic and biofilm cells together with the corresponding biofilm structures revealed that only the nanosized ZnO coating had an antibiofilm effect...
August 17, 2017: ACS Applied Materials & Interfaces
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