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Vancomycin Antibiotic

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https://www.readbyqxmd.com/read/28531930/in-reply-to-optimal-strategy-to-control-surgical-site-infection-following-deep-brain-stimulation-surgery-adequate-management-of-risk-factors-topical-application-of-vancomycin-powder-in-the-surgical-wound-and-preoperative-antibiotic-prophylaxis
#1
https://www.readbyqxmd.com/read/28531929/optimal-strategy-to-control-surgical-site-infection-following-deep-brain-stimulation-surgery-adequate-management-of-risk-factors-topical-application-of-vancomycin-powder-in-the-surgical-wound-and-preoperative-antibiotic-prophylaxis
#2
https://www.readbyqxmd.com/read/28530212/-measurements-of-vancomycin-concentrations-in-the-blood-a-method-of-personalization-the-antibiotic-therapy-in-patients-with-chronic-kidney-disease
#3
Joanna Pondel, Piotr Krajewski, Natalia Królikowska, Aleksandra Tobiasz, Hanna Augustyniak-Bartosik, Magdalena Hurkacz
Therapeutic Drug Monitoring is a recognized method of personalizing treatment, having particular application in patients with chronic kidney disease who have frequent infections, requiring administration of vancomycin. International guidelines indicate the need to adjust the dose of the drug to the state of renal function. The recommended therapeutic ranges of minimum and maximum levels should be achieved in order to increase the effectiveness and safety of treatment. AIM: The aim of this study was to evaluate the usefulness of measuring the concentration of vancomycin in patients with chronic kidney disease due to bacterial infection...
April 21, 2017: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28529866/which-orthopaedic-patients-are-infected-with-gram-negative-non-fermenting-rods
#4
Omid Jamei, Shpresa Gjoni, Besa Zenelaj, Benjamin Kressmann, Wilson Belaieff, Didier Hannouche, Ilker Uçkay
Background : 1(st) and 2(nd) generation cephalosporins used for perioperative prophylaxis in orthopaedic surgery do not cover non-fermenting Gram-negative rods (NFR). Methods: Epidemiological cohort study of adult patients operated for orthopedic infections between 2004 and 2014 with perioperative cefuroxim or vancomycin prophylaxis. Exclusion of polyneuropathic ischemic foot infections and septic bursitis cases. Results: Of the total 1840 surgical procedures in the study, 430 grew Gram-negative pathogens (23%), of which 194 (11%) were due to NFR and 143 (8%) to Pseudomonas aeruginosa...
2017: J Bone Jt Infect
https://www.readbyqxmd.com/read/28529861/local-intra-wound-administration-of-powdered-antibiotics-in-orthopaedic-surgery
#5
REVIEW
Andrew N Fleischman, Matthew S Austin
Surgical site infection (SSI) is one of the most common complications after orthopaedic surgery, leading to significant morbidity and its associated costs. Surgical guidelines strongly recommend the use of systemic antibiotic prophylaxis to reduce the risk for developing SSI. Locally administered powdered antibiotics have the potential to provide remarkably high intra-wound concentrations without risk for systemic toxicity. However, a paucity of high quality evidence in the orthopaedic literature has prevented widespread adoption of this technique...
2017: J Bone Jt Infect
https://www.readbyqxmd.com/read/28528048/real-time-autofluorescence-imaging-to-diagnose-lvad-driveline-infections
#6
Jack B Keenan, Taufiek Konrad Rajab, David G Armstrong, Zain Khalpey
A 64-year-old man experienced a driveline infection that was treated with serial debridements and antibiotics. When the wound clinically appeared ready for closure, a handheld fluorescence imaging device still revealed a margin of red fluorescence around the wound edges consistent with a subclinical infection. Therefore, a wider margin was made and additional specimens for wound culture were taken, which demonstrated a vancomycin-resistant enterococcal infection. The autofluorescence signals of common bacteria can be detected with a fluorescence camera in subclinical wound infections without clinical signs...
June 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28527649/antimicrobial-activity-of-fidaxomicin-against-clostridium-difficile-clinical-isolates-in-aichi-area-in-japan
#7
Yuka Yamagishi, Naoya Nishiyama, Yusuke Koizumi, Yoko Matsukawa, Hiroyuki Suematsu, Mao Hagihara, Kiyomitsu Katsumata, Hiroshige Mikamo
We evaluated the susceptibility of 100 Japanese Clostridium difficile isolates to fidaxomicin, a new macrocyclic antibiotic. The minimum inhibitory concentration (MIC) range of fidaxomicin was 0.03-0.5 μg/mL, with a MIC for inhibition of 50% (MIC50) of 0.12 μg/mL, and for inhibition of 90% (MIC90) of 0.25 μg/mL. We also evaluated the susceptibilities of the same 100 C. difficile isolates to vancomycin, metronidazole, moxifloxacin, clindamycin, meropenem, and ampicillin. Of all the antibiotics tested, fidaxomicin showed the most potent antimicrobial activity against this group of C...
May 17, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28527358/improving-the-pharmacokinetics-and-tissue-distribution-of-pyrinezolid-by-self-assembled-polymeric-micelles
#8
Haiyue Long, Xiaoling Li, Zitai Sang, Lan Mei, Tao Yang, Zicheng Li, Liangxue Zhou, Yu Zheng, Gu He, Gang Guo, Zhenling Wang, Yong Deng, Youfu Luo
Antibiotic-resistance by bacteria is a growing global concern within the healthcare field, and it has provided an impetus for continued antimicrobial development. Pyrinezolid (PZ), a novel oxazolidinone compound, can effectively inhibit most gram-positive bacteria, including methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococci (VRE). Though PZ is a promising antimicrobial candidate, the druggability of PZ is limited by its poor water solubility. Therefore, the amphipathic mPEG-PLLA copolymer was used to prepare the pyrinezolid micelles (PZ-M)...
May 8, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28527243/-synthesis-of-antibiotic-loaded-polylactic-acid-nanoparticles-and-their-antibacterial-activity-against-escherichia-coli-o157-h7-and-methicillin-resistant-staphylococcus-aureus
#9
Mónica Tatiana Herrera, Jhon Jhamilton Artunduaga, Claudia Cristina Ortiz, Rodrigo Gonzalo Torres
INTRODUCTION: Polymeric nanoparticles are promising nanotechnology tools to fight pathogenic bacteria resistant to conventional antibiotics. OBJECTIVE: To synthesize polylactic acid nanoparticles loaded with ofloxacin and vancomycin, and to determine their antibacterial activity against Escherichia coli O157:H7 and methicillin-resistant Staphylococcus aureus (MRSA). MATERIALS AND METHODS: We synthesized ofloxacin or vancomycin loaded polylactic acid nanoparticles by the emulsification-solvent evaporation method, and characterized them by dynamic light scattering, laser Doppler electrophoresis and scanning electron microscopy...
January 24, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/28527125/diversity-and-probiotic-potential-of-lactic-acid-bacteria-isolated-from-horreh-a-traditional-iranian-fermented-food
#10
Alireza Vasiee, Behrooz Alizadeh Behbahani, Farideh Tabatabaei Yazdi, Seyed Ali Mortazavi, Hamid Noorbakhsh
The aim of this study was to evaluate the probiotic potential of lactic acid bacteria (LAB) strains isolated from Horreh. Some probiotic properties, e.g., resistance to acid, bile tolerance, antibacterial activity, and antibiotic susceptibility, were investigated. A total of 140 Gram-positive and catalase-negative isolates from Horreh were subjected to identification and grouping by cultural methods and the 16S rRNA sequencing. The new isolates were identified to be Lactobacillus (fermentum, plantarum, and brevis) Weissella cibaria, Enterococcus (faecium and faecalis), Leuconostoc (citreum and mesenteroides subsp...
May 19, 2017: Probiotics and Antimicrobial Proteins
https://www.readbyqxmd.com/read/28525287/occurrence-of-enterococcus-faecalis-and-enterococcus-faecium-in-various-clinical-infections-detection-of-their-drug-resistance-and-virulence-determinants
#11
Ali Jahansepas, Mohammad Aghazadeh, Mohammad Ahangarzadeh Rezaee, Alka Hasani, Yaeghob Sharifi, Toofan Aghazadeh, Jalal Mardaneh
The aim of this study was to characterize virulence determinants and antibiotic resistance profiles in enterococci obtained from various clinical sources in the northwest of Iran. A total of 160 enterococcal clinical isolates from various wards of University Teaching Hospitals were collected and specified by biochemical test, from September 2014 to July 2015. Identification of enterococci was confirmed by multiplex PCR in the genus and species level. Antibiotic resistance properties and virulence determinants were examined by phenotypic and molecular methods...
May 19, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28522725/draft-genome-sequences-of-five-enterococcus-species-isolated-from-the-gut-of-patients-with-suspected-clostridium-difficile-infection
#12
Eduardo Castro-Nallar, Sandro L Valenzuela, Sebastián Baquedano, Carolina Sánchez, Fabiola Fernández, Annette N Trombert
We present draft genome sequences of five Enterococcus species from patients suspected of Clostridium difficile infection. Genome completeness was confirmed by presence of bacterial orthologs (97%). Gene searches using Hidden-Markov models revealed that the isolates harbor between seven and 11 genes involved in antibiotic resistance to tetracyclines, beta-lactams, and vancomycin.
May 18, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28520953/evolving-insights-into-the-epidemiology-and-control-of-clostridium-difficile-in-hospitals
#13
Daniel A Caroff, Deborah S Yokoe, Michael Klompas
Typing studies suggest most cases of hospital-onset Clostridium difficile infection are unrelated to other cases of active disease in the hospital. New cases may instead be due to transmissions from asymptomatic carriers or progression of latent C.difficile present-on-admission to active infection. Direct exposure to antibiotics remains the primary risk factor for C.difficile infection but ward-level antibiotic use, antibiotic exposure of the prior room occupant, and C.difficile status of the prior room occupant increase risk for C...
May 17, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28516109/serum-derived-bovine-immunoglobulin-as-novel-adjunct-in-complicated-clostridium-difficile-colitis-treatment
#14
Samson Ferm, Nims Varadi, Constantine Fisher, Ellen Gutkin
Clostridium difficile infection (CDI) is a well-known complication of antibiotic therapy. It is associated with significant morbidity, mortality, and cost in the hospital setting. The main symptoms include watery diarrhea, abdominal pain, and distension, but CDI can also present as toxic megacolon, bowel perforation with peritonitis, sepsis and renal failure. Therapy includes metronidazole and oral vancomycin, with rectal vancomycin and fecal transplant reserved for more complicated cases. Adjunctive treatments such as probiotics have been tried with mixed results...
2017: ACG Case Reports Journal
https://www.readbyqxmd.com/read/28515641/molecular-typing-and-antimicrobial-susceptibility-of-staphylococcus-aureus-strains-isolated-from-raw-milk-cheese-minced-meat-and-chicken-meat-samples
#15
Hayriye Yeşim Can, Mehmet Elmalı, Alper Karagöz
The objectives of this study were: i) to detect the presence of Staphylococcus aureus and methicillin-resistant S. aureus (MRSA) in raw milk, cheese, beef minced meat, and chicken meat samples; ii) to evaluate the antimicrobial susceptibility of the isolates; and iii) to determine clonal relation among the isolates by using pulsed-field gel electrophoresis (PFGE) method. Therefore, a total of 160 food samples were randomly collected between August 2014 and May 2015 in Hatay province, located in the southern Turkey...
2017: Korean Journal for Food Science of Animal Resources
https://www.readbyqxmd.com/read/28511809/characterisation-of-the-selective-binding-of-antibiotics-vancomycin-and-teicoplanin-by-the-vans-receptor-regulating-type-a-vancomycin-resistance-in-the-enterococci
#16
C S Hughes, E Longo, M K Phillips-Jones, R Hussain
A-type resistance towards "last-line" glycopeptide antibiotic vancomycin in the leading hospital acquired infectious agent, the enterococci, is the most common in the UK. Resistance is regulated by the VanRASA two-component system, comprising the histidine sensor kinase VanSA and the partner response regulator VanRA. The nature of the activating ligand for VanSA has not been identified, therefore this work sought to identify and characterise ligand(s) for VanSA. In vitro approaches were used to screen the structural and activity effects of a range of potential ligands with purified VanSA protein...
May 13, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28509139/unusual-listeria-monocytogenes-peritonitis-in-peritoneal-dialysis-patient-with-liver-cirrhosis-a-case-report-and-review-of-literature
#17
Miloš Mitrović, P Đurić, A Janković, V Todorov, J Tošić-Dragović, N Simović, T Damjanović, N Dimković
Spontaneous Listeria peritonitis is well described in liver failure, but is uncommon in peritoneal dialysis patients. Atypical cases where peritonitis symptoms develop after systemic manifestations are rare and challenging for diagnostic. A 57-year-old peritoneal dialysis patient with history of ethylic cirrhosis was admitted after epileptic seizure. On admission, patient was soporous without signs of peritonitis and meningitis. Patient's peritoneal effluent was clear, with normal leukocytes. Cranial CT scan showed no abnormalities...
May 2017: CEN Case Reports
https://www.readbyqxmd.com/read/28507244/inhibition-of-staphylococcus-aureus-cell-wall-biosynthesis-by-desleucyl-oritavancin-a-quantitative-peptidoglycan-composition-analysis-by-mass-spectrometry
#18
James D Chang, Erin E Foster, Aanchal N Thadani, Alejandro J Ramirez, Sung Joon Kim
Oritavancin is a lipoglycopeptide antibiotic that exhibits potent activities against vancomycin-resistant Gram-positive pathogens. Oritavancin differs from vancomycin by a hydrophobic side chain attached to the drug disaccharide, which forms a secondary-binding site to enable oritavancin binding to the cross-linked peptidoglycan in cell wall. The mode of action of secondary-binding site was investigated by measuring the changes in the peptidoglycan composition of Staphylococcus aureus grown in presence of desleucyl-oritavancin at sub-inhibitory concentration using liquid chromatography-mass spectrometry (LC-MS)...
May 15, 2017: Journal of Bacteriology
https://www.readbyqxmd.com/read/28507105/reduced-vancomycin-susceptibility-of-methicillin-susceptible-staphylococcus-aureus-no-significant-impact-on-mortality-but-increase-in-complicated-infection
#19
Sean B Sullivan, Eloise D Austin, Stephania Stump, Barun Mathema, Susan Whittier, Franklin D Lowy, Anne-Catrin Uhlemann
Methicillin-susceptible Staphylococcus aureus (MSSA) bloodstream infections (BSIs) often lead to severe complications despite the availability of effective antibiotics. It remains unclear whether elevated vancomycin MICs are associated with worse outcomes.We conducted a 2-year retrospective cohort study (n=252) of patients with MSSA BSIs at a tertiary care hospital. We defined reduced vancomycin susceptibility (RVS) as a Microscan MIC of 2 mg/L. All strains were genotyped (spa) and assessed for agr functionality...
May 15, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28506250/antimicrobial-resistance-profile-of-staphylococcus-aureus-isolates-isolated-from-ear-discharges-of-patients-at-university-of-hawassa-comprehensive-specialized-hospital
#20
Serawit Deyno, Alemayehu Toma, Mesfin Worku, Muluken Bekele
BACKGROUND: Drug-resistant microorganism are a growing global danger. Strains of S. aureus have developed resistance to many commonly used antimicrobials due to indiscriminate use of antimicrobials, and treatment becoming a challenge. Studies assessing pattern and determinants of S. aureus resistance in ear infection in Ethiopia are very scarce. This study presents overview of pattern and determinants S. aureus resistance from samples of ear discharge in Ethiopia. METHOD: A prospective cross-sectional study was conducted on patients who visit ENT clinic of University of Hawassa comprehensive specialized hospital from February 1, 2016 to November 1, 2016...
May 15, 2017: BMC Pharmacology & Toxicology
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