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Vancomycin Antibiotic

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https://www.readbyqxmd.com/read/29040232/in-vitro-effect-of-vancomycin-on-the-viability-of-articular-chondrocytes
#1
K Aaron Shaw, Josef K Eichinger, Nischal Nadig, Stephen A Parada
OBJECTIVES: To characterize the in-vitro toxicity of vancomycin on articular cartilage. METHODS: Osteochondral samples extracted from fresh, juvenile porcine stifle (knee) joints were exposed to vancomycin-saline concentrations of 2, 5, and 10 mg/ml and compared to a saline and non-saline treated control. Comparison chondrocyte viability was assessed with histology examination of chondrocyte degeneration using the Mankin criteria and a live/dead staining using ethidium homodimer-2 and calcien acetoxymethylester (AM) stain and confocal laser scanning microscopy...
October 7, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/29035755/antibiotic-effects-on-seed-germination-and-root-development-of-tomato-solanum-lycopersicum-l
#2
Alessandro Bellino, Giusy Lofrano, Maurizio Carotenuto, Giovanni Libralato, Daniela Baldantoni
Antibiotics are emerging pollutants released into the environment through wastewater and manure or effluents from livestock plants. Compared to the wide literature on the effects of antibiotics on the development of drug-resistant bacteria and on the adverse effects on animals and human beings, the effects on plants are less investigated. Here we evaluated the effects of four antibiotics (cloramphenicol: CAP, spiramycin: SPR, spectinomycin: SPT, vancomycin: VAN) belonging to different chemical groups, on seed germination and root development of tomato (Solanum lycopersicum L...
October 13, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29034380/the-immobilization-of-antibiotic-loaded-polymeric-coatings-on-osteoarticular-ti-implants-for-the-prevention-of-bone-infections
#3
Dan Li, Pengfei Lv, Linfeng Fan, Yaoyi Huang, Fei Yang, Xifan Mei, Decheng Wu
Implant-associated infections in orthopaedic surgeries are very critical as they may hinder bone healing, cause implant failure and even progress to osteomyelitis. Drug-eluting implants for local delivery of antibiotics at surgical sites are thought to be promising in preventing infections. Herein, the antibiotic vancomycin was encapsulated in a poly(ethylene glycol) (PEG)-based hydrogel film that was covalently bound to Ti implants and subsequently covered by a PEG-poly(lactic-co-caprolactone) (PEG-PLC) membrane...
October 16, 2017: Biomaterials Science
https://www.readbyqxmd.com/read/29033779/a-patient-with-nafcillin-associated-drug-induced-liver-failure
#4
Qin Rao, Isaiah Schuster, Talal Seoud, Kevin Zarrabi, Nirvani Goolsarran
Nafcillin-induced acute liver injury is a rare and potentially fatal complication that has been known since the 1960s but inadequately studied. At this time, the only proven treatment is early discontinuation of the drug. Because of the high prevalence of nafcillin class antibiotic use in the United States, it is important for clinicians to have a high clinical suspicion for this diagnosis. We present a case of liver failure attributable to nafcillin use in a 68-year-old male with a history methicillin-sensitive Staphylococcus and L3/L4 osteomyelitis...
September 2017: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/29031431/implementing-an-antibiotic-stewardship-program-at-a-long-term-acute-care-hospital-in-detroit-michigan
#5
Ammara Mushtaq, Reda A Awali, Suganya Chandramohan, Amar Krishna, Caitlin Biedron, Olufemi Jegede, Teena Chopra
BACKGROUND: The objective of the study was to assess health care providers' (HCPs) knowledge and attitude toward antimicrobial resistance (AMR) and implement an antimicrobial stewardship program (ASP) in a long-term acute care hospital (LTACH). METHODS: A questionnaire on antibiotic use and resistance was administered to HCP in an LTACH in Detroit, Michigan, between August 2011 and October 2011. Concurrently, a retrospective review of common antibiotic prescription practices and costs was conducted...
October 11, 2017: American Journal of Infection Control
https://www.readbyqxmd.com/read/29030448/prevalence-and-antimicrobial-resistance-of-enterococci-isolated-from-retail-meats-in-the-united-states-2002-2014
#6
Gregory H Tyson, Epiphanie Nyirabahizi, Emily Crarey, Claudine Kabera, Claudia Lam, Crystal Rice-Trujillo, Patrick F McDermott, Heather Tate
Bacteria of the genus Enterococcus are important human pathogens that are frequently resistant to a number of clinically important antibiotics. They are also used as a marker of animal fecal contamination of human foods, and are employed as sentinel organisms for tracking trends in resistance to antimicrobials with gram-positive activity. As part of the National Antimicrobial Resistance Monitoring System (NARMS), we evaluated several retail meat commodities for the presence of enterococci from 2002-2014, finding 92...
October 13, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29030312/antimicrobial-resistance-of-enterococcus-spp-isolated-from-thai-fermented-pork-in-chiang-rai-province-thailand
#7
Kamonnaree Chotinantakul, Nittaya Chansiw, Seiji Okada
OBJECTIVES: The aim of this study is to evaluate the prevalence of resistant phenotypes and genes of Enterococcus spp. to explore the range of resistant profiles from Thai traditional fermented pork. METHODS: A total of 120 Thai fermented pork specimens in Chiang Rai, Thailand were collected and antimicrobial resistance was identified using 11 antimicrobial agents in enterococcal isolates, via an agar disk diffusion method. The antibiotic resistant genes from resistant phenotypes and virulence genes were observed...
October 10, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/29030268/topical-vancomycin-to-reduce-surgical-site-infections-in-neurosurgery-study-protocol-for-a-multi-center-randomized-controlled-trial
#8
Alexander J Jonokuchi, Jared Knopman, Ryan E Radwanski, Moises A Martinez, Blake Eaton Samuel Taylor, Michael Rothbaum, Sean Sullivan, Trae R Robison, Brandon R Christophe, Dimitri Sigounas, Brett Youngerman, Emilia Bagiella, Peter D Angevine, Franklin D Lowy, E Sander Connolly
Surgical-site infections (SSIs) account for 20% of all healthcare-associated infections, are the most common nosocomial infection among surgical patients, and are a focus of quality improvement initiatives. Despite implementation of many quality care measures (e.g. prophylactic antibiotics), SSIs remain a significant cause of morbidity, mortality, and economic burden, particularly in the field of neurosurgery. Topical vancomycin is increasingly utilized in instrumented spinal and cardiothoracic procedures, where it has been shown to reduce the risk of SSIs...
October 10, 2017: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/29029221/analysis-of-clostridium-difficile-biofilms-imaging-and-antimicrobial-treatment
#9
Garth A James, Laurent Chesnel, Laura Boegli, Elinor deLancey Pulcini, Steve Fisher, Philip S Stewart
Background: Clostridium difficile, a spore-forming Gram-positive anaerobic bacillus, is the most common causative agent of healthcare-associated diarrhoea. Formation of biofilms may protect C. difficile against antibiotics, potentially leading to treatment failure. Furthermore, bacterial spores or vegetative cells may linger in biofilms in the gut causing C. difficile infection recurrence. Objectives: In this study, we evaluated and compared the efficacy of four antibiotics (fidaxomicin, surotomycin, vancomycin and metronidazole) in penetrating C...
October 6, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29028569/occurrence-of-transferable-antibiotic-resistances-in-commercialized-ready-to-eat-mealworms-tenebrio-molitor-l
#10
Andrea Osimani, Federica Cardinali, Lucia Aquilanti, Cristiana Garofalo, Andrea Roncolini, Vesna Milanović, Marina Pasquini, Stefano Tavoletti, Francesca Clementi
The present study aimed to assess the occurrence of transferable determinants conferring resistance to tetracyclines, macrolide-lincosamide-streptogramin B, vancomycin, beta-lactams, and aminoglycosides in 40 samples of commercialized edible mealworms (Tenebrio molitor L.) purchased from European Union (EU) and non-EU producers. A high prevalence of tet(K) was observed in all of the samples assayed, with percentages of PCR-based positivity that ranged from 80% (samples from Thailand) to 100% (samples from the Netherlands, Belgium and France)...
October 5, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/29028568/virulence-genotypes-and-antimicrobial-susceptibility-patterns-of-arcobacter-butzleri-isolated-from-seafood-and-its-environment
#11
Srinu Rathlavath, Vandita Kohli, Asem Sanjit Singh, Manjusha Lekshmi, Gayatri Tripathi, Sanath Kumar, Binaya Bhusan Nayak
Arcobacter butzleri is an emerging pathogen isolated from animals, food and the environment. In this study, 147 A. butzleri isolated from seafood and the coastal environment were tested for the presence of ten putative virulence genes (cadF, cj1349, ciaB, mviN, pldA, tlyA, hecA, hecB, irgA, iroE) and antimicrobial susceptibilities. Majority of the isolates harbored mviN (100%), cj1349 (97.2%), ciaB (95.9%), tlyA (91.8%), pldA (91.1%) and cadF (89.7%). Lower detection rates were observed for hecA (10.8%), hecB (19%), iroE (12...
October 3, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/29028315/nanoparticles-of-short-cationic-peptidopolysaccharide-self-assembled-by-hydrogen-bonding-with-antibacterial-effect-against-multi-drug-resistant-bacteria
#12
Zheng Hou, Yogesh Vikhe Shankar, Yang Liu, Feiqing Ding, Jothy Lachumy Subramanion, Vikashini Ravikumar, Rubí Zamudio-Vázquez, Damien Keogh, Huiwen Lim, Moon Yue Feng Tay, Surajit Bhattacharjya, Scott A Rice, Jian Shi, Hongwei Duan, Xue-Wei Liu, Yuguang Mu, Nguan Soon Tan, Kam Michael Chiu Tam, Kevin Pethe, Mary B Chan-Park
Cationic antimicrobial peptides (AMPs) and polymers are active against many multi-drug resistant (MDR) bacteria but only a limited number of these compounds are in clinical use due to their unselective toxicity. The typical strategy for achieving selective antibacterial efficacy with low mammalian cell toxicity is through balancing the ratio of cationicity to hydrophobicity. Herein, we report a cationic nanoparticle self-assembled from chitosan-graft-oligolysine (CSM5-K5) chains with ultra-low molecular weight (1450 Daltons) that selectively kills bacteria...
October 13, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29028276/enhancing-antibiotic-stewardship-by-tackling-spurious-penicillin-allergy
#13
Mamidipudi Thirumala Krishna, Aarnoud P Huissoon, Mark Li, Alex Richter, Devadas Ganesh Pillay, Dhinakaran Sambanthan, Sumanth C Raman, Shuaib Nasser, Siraj A Misbah
Approximately 90-99% of patients with a label of penicillin allergy (PenA) are not allergic when comprehensively investigated. An inaccurate label of PenA has major public health implications - longer hospital stay, more frequent hospital admissions, greater use of fluoroquinolones, glycopeptides, cephalosporins and other expensive antibiotics resulting in significantly higher costs to the health service and predisposing to Clostridium difficile, meticillin-resistant Staphylococcus aureus infections and vancomycin resistant enterococcus...
October 13, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29027654/pharmacokinetic-drug-drug-interactions-in-the-intensive-care-unit-single-centre-experience-and-literature-review
#14
Piotr Łój, Aleksanda Olender, Weronika Ślęzak, Łukasz J Krzych
BACKGROUND: Drug-drug interactions constitute a serious health hazard in everyday clinical practice in critically ill patients. Drug-drug interactions may be pharmacokinetic or pharmacodynamic in their nature. We aimed to investigate the quantity and quality of possible drug-drug interactions, and their possible side effects in intensive care unit patients in a 12-month period. METHODS: This retrospective study covered data on pharmacological treatment of 43 consecutive patients (11 females, 32 males) aged 62 ± 15 years, hospitalized between January 2015 and February 2016...
October 13, 2017: Anaesthesiology Intensive Therapy
https://www.readbyqxmd.com/read/29026601/complications-effectiveness-and-long-term-follow-up-of-fecal-microbiota-transfer-by-nasoduodenal-tube-for-treatment-of-recurrent-clostridium-difficile-infection
#15
Yvette H van Beurden, Pieter F de Groot, Els van Nood, Max Nieuwdorp, Josbert J Keller, Abraham Goorhuis
BACKGROUND: Fecal microbiota transfer (FMT) is an effective treatment for recurrent Clostridium difficile infection (CDI), but data on procedure-related complications and long-term outcome are scarce. METHODS: All patients treated with FMT for recurrent CDI at the Academic Medical Center between July 2010 and January 2016 were included. FMT was performed according to the FECAL trial protocol: administration of fresh donor feces (related or unrelated donor) through a duodenal tube after pre-treatment with vancomycin and bowel lavage...
October 2017: United European Gastroenterology Journal
https://www.readbyqxmd.com/read/29025325/versatility-of-targeted-antibiotic-loaded-gold-nanoconstructs-for-the-treatment-of-biofilm-associated-bacterial-infections
#16
Daniel G Meeker, Tengjiao Wang, Walter N Harrington, Vladimir P Zharov, Sarah A Johnson, Samir V Jenkins, Stephanie E Oyibo, Christopher M Walker, Weston B Mills, Mark E Shirtliff, Karen E Beenken, Jingyi Chen, Mark S Smeltzer
BACKGROUND: We previously demonstrated that a photoactivatable therapeutic approach employing antibiotic-loaded, antibody-conjugated, polydopamine (PDA)-coated gold nanocages (AuNCs) could be used for the synergistic killing of bacterial cells within a biofilm. The approach was validated with a focus on Staphylococcus aureus using an antibody specific for staphylococcal protein A (Spa) and an antibiotic (daptomycin) active against Gram-positive cocci including methicillin-resistant S...
October 12, 2017: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/29023074/bacterial-quality-of-urinary-tract-infections-in-diabetic-and-non-diabetics-of-the-population-of-ma-an-province-jordan
#17
Ali Al-Asoufi, Ali Khlaifat, Amjad Al Tarawneh, Khalid Alsharafa, Muhamad Al-Limoun, Khaled Khleifat
BACKGROUND AND OBJECTIVE: The patients with Diabetes Mellitus (DM) have malfunction in bladder which prompt urine accumulation in its pool which serves a decent situation to the microbes to be develop and cause Urinary Tract Infection (UTI). The UTI is the most infectious disease that affects both males and females. This study was designed to detect the bacterial species responsible for UTI in both diabetic and non-diabetic patients in Ma'an province, Jordan. MATERIALS AND METHODS: One hundred sixteen urine samples were investigated to determine UTI-causing bacteria...
2017: Pakistan Journal of Biological Sciences: PJBS
https://www.readbyqxmd.com/read/29020310/levofloxacin-prophylaxis-during-induction-therapy-for-pediatric-acute-lymphoblastic-leukemia
#18
Joshua Wolf, Li Tang, Patricia M Flynn, Ching-Hon Pui, Aditya H Gaur, Yilun Sun, Hiroto Inaba, Tracy Stewart, Randall T Hayden, Hana Hakim, Sima Jeha
Background: Infection is the most important cause of treatment-related morbidity and mortality in pediatric patients treated for acute lymphoblastic leukemia (ALL). Although routine in adults with leukemia, antibacterial prophylaxis is controversial in pediatrics because of insufficient evidence for its efficacy or antibiotic choice and concerns about promoting antibiotic resistance and Clostridium difficile infection. Methods: This was a single-center, observational cohort study of patients with newly diagnosed ALL, comparing prospectively collected infection-related outcomes in patients who received no prophylaxis, levofloxacin prophylaxis, or other prophylaxis during induction therapy on the total XVI study...
September 14, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29020249/increasing-evidence-of-the-nephrotoxicity-of-piperacillin-tazobactam-and-vancomycin-combination-therapy-what-is-the-clinician-to-do
#19
Richard R Watkins, Stan Deresinski
Early and appropriate empiric antibiotics are essential for achieving the best possible outcomes in sepsis. Yet, the choice of antibiotic therapy has become more challenging due to recent reports of nephrotoxicity with the combination of vancomycin and piperacillin/tazobactam, the "workhorse" regimen at many institutions. In this article we assess the evidence for nephrotoxicity and its possible mechanisms, provide recommendations for risk mitigation, address the advantages and disadvantages of alternative antibiotic choices, and suggest areas for future research...
July 29, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29019678/total-synthesis-and-biological-mode-of-action-of-wap-8294a2-a-menaquinone-targeting-antibiotic
#20
Hiroaki Itoh, Kotaro Tokumoto, Takuya Kaji, Atmika Paudel, Suresh Panthee, Hiroshi Hamamoto, Kazuhisa Sekimizu, Masayuki Inoue
WAP-8294A2 (lotilibcin, 1) is a potent antibiotic with superior in vivo efficacy to vancomycin against methicillin-resistant Staphylococcus aureus (MRSA). Despite the great medical importance, its molecular mode of action remains unknown. Here we report the total synthesis of complex macrocyclic peptide 1 comprised of 12 amino acids with a β-hydroxy fatty-acid chain, and its deoxy analogue 2. A full solid-phase synthesis of 1 and 2 enabled their rapid assembly and the first detailed investigation of their functions...
October 11, 2017: Journal of Organic Chemistry
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