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Vancomycin Antibiotic

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https://www.readbyqxmd.com/read/28212469/-evidence-and-recommendation-of-empirical-antimicrobial-treatment-in-pyogenic-spondylodiscitis-systematic-review
#1
David Agustín Cordero-Delgado, Alfredo Javier Moheno-Gallardo, Rubén Torres-González, Argenis Mata-Hernández, Eulalio Elizalde-Martínez, José Manuel Pérez-Atanasio
BACKGROUND: Pyogenic spondylodiscitis is the infectious process that affects the vertebral body and the intervertebral disc. It has an incidence between 2 and 7%. To prescribe antibiotic treatment, it is required to identify the causative organism on the basis of the epidemiology of the etiologic agent, as well as the ability of the antibiotic to penetrate the bone tissue and the intervertebral disc. The objective was to identify the level of evidence and the grade of recommendation for the empiric initial treatment...
2017: Revista Médica del Instituto Mexicano del Seguro Social
https://www.readbyqxmd.com/read/28211545/the-effect-of-gut-microbiome-on-tolerance-to-morphine-mediated-antinociception-in-mice
#2
Minho Kang, Ryan A Mischel, Sukhada Bhave, Essie Komla, Alvin Cho, Charity Huang, William L Dewey, Hamid I Akbarali
There is growing appreciation for the importance of gastrointestinal microbiota in many physiological and pathophysiological processes. While morphine and other narcotics are the most widely prescribed therapy for moderate to severe pain clinically, they have been noted to alter microbial composition and promote bacterial translocation to other tissues. Here we examined the pharmacodynamic properties of chronic morphine in mice following bacterial depletion with oral gavage of an antibiotic cocktail (ABX). ABX significantly reduced gut bacteria and prevented chronic morphine induced increases in gut permeability, colonic mucosal destruction, and colonic IL-1β expression...
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28209400/multidrug-resistant-enterococcal-infections-new-compounds-novel-antimicrobial-therapies
#3
REVIEW
Roel M van Harten, Rob J L Willems, Nathaniel I Martin, Antoni P A Hendrickx
Over the past two decades infections due to antibiotic-resistant bacteria have escalated world-wide, affecting patient morbidity, mortality, and health care costs. Among these bacteria, Enterococcus faecium and Enterococcus faecalis represent opportunistic nosocomial pathogens that cause difficult-to-treat infections because of intrinsic and acquired resistance to a plethora of antibiotics. In recent years, a number of novel antimicrobial compound classes have been discovered and developed that target Gram-positive bacteria, including E...
February 13, 2017: Trends in Microbiology
https://www.readbyqxmd.com/read/28209139/stroke-caused-by-an-inflammatory-thrombus-a-case-report
#4
Kai Shan, Wei Guo
BACKGROUND: Stroke is the leading cause of mortality and disability worldwide. Several definite risk factors have been identified for stroke, although infectious factors might also contribute to stroke episodes through increased susceptibility or direct induction. CASE PRESENTATION: A 46-year-old Chinese male initially presented with fever, headache, and impaired memory and developed disturbance of consciousness after admission. A clinical diagnosis of Staphylococcus aureus sepsis, massive cerebral infarction and haemorrhagic transformation (left internal carotid arterial system, inflammatory thrombus) were made based on brain radiography, blood culture and postoperative pathological examinations...
February 16, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28207293/prevalence-of-multidrug-resistant-bacteria-from-u-s-grown-and-imported-fresh-produce-retailed-in-chain-supermarkets-and-ethnic-stores-of-davidson-county-tennessee
#5
Siqin Liu, Agnes Kilonzo-Nthenge
The aim of this study was to determine whether U.S.-grown and imported fresh produce retailed in ethnic stores and chain supermarkets was a reservoir of antibiotic-resistant bacteria. A total of 360 (129 imported and 231 U.S.-grown) samples of fresh produce were purchased from retail stores and analyzed for Enterobacteriaceae , including three pathogenic bacteria ( Escherichia coli O157:H7, Shigella , and Salmonella ), using standard methods. Presumptive pathogenic isolates were confirmed using PCR. The mean Enterobacteriaceae counts for imported produce were 6...
February 16, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28203096/burden-of-methicillin-resistant-staphylococcus-aureus-pneumonia-among-hospitalized-patients-in-lebanon-and-saudi-arabia
#6
Abdulhakeem O Althaqafi, Madonna J Matar, Rima Moghnieh, Adel F Alothman, Thamer H Alenazi, Fayssal Farahat, Shelby Corman, Caitlyn T Solem, Nirvana Raghubir, Cynthia Macahilig, Seema Haider, Jennifer M Stephens
OBJECTIVES: The objective of this study is to describe the real-world treatment patterns and burden of suspected or confirmed methicillin-resistant Staphylococcus aureus (MRSA) pneumonia in Saudi Arabia and Lebanon. METHODS: A retrospective chart review study evaluated 2011-2012 data from hospitals in Saudi Arabia and Lebanon. Patients were included if they had been discharged with a diagnosis of MRSA pneumonia, which was culture proven or suspected based on clinical criteria...
2017: Infection and Drug Resistance
https://www.readbyqxmd.com/read/28198662/changes-in-bacterial-epidemiology-and-antibiotic-resistance-among-veterans-with-spinal-cord-injury-disorder-over-the-past-9-years
#7
Margaret A Fitzpatrick, Katie J Suda, Nasia Safdar, Stephen P Burns, Makoto M Jones, Linda Poggensee, Swetha Ramanathan, Charlesnika T Evans
OBJECTIVE: Patients with spinal cord injury and disorder (SCI/D) have an increased risk of infection with multidrug-resistant (MDR) bacteria. We described bacterial epidemiology and resistance in patients with SCI/D at Veterans Affairs Medical Centers (VAMCs) for the past 9 years. DESIGN: Retrospective cohort Setting: One hundred thirty VAMCs. PARTICIPANTS: Veterans with SCI/D and bacterial cultures with antibiotic susceptibility testing performed between 1/1/2005-12/31/2013...
February 15, 2017: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/28197394/antibiogram-of-bacteria-isolated-from-automated-teller-machines-in-hamadan-west-iran
#8
Hassan Mahmoudi, Mohammad Reza Arabestani, Mohammad Yousef Alikhani, Iraj Sedighi, Hamed Farhadi Kohan, Mohammad Molavi
Aim: Bacteria are ubiquitous in the environment. In keeping with the continued expansion of urbanization and the growing population, an increasing number of people use automated banking, i.e. automated teller machines (ATMs). The aim of this study was to investigate the bacterial contamination and its antibiotic sensitivity on computer keyboards located at ATMs in Hamadan province, Iran. Method: Out of 360 ATMs at four locations in Hamadan, 96 were randomly selected for this study. The antibiotic susceptibility pattern of all isolates was determined by the agar disk diffusion method using gentamicin (10 µg), vancomycin (30 µg), trimethoprim/sulfamethoxazole (25 µg), amikacin (30 µg), tobramycin (10 µg), cephalotin (30 µg), norfloxacin (5 µg), and ceftizoxim (30 µg) disks...
2017: GMS Hygiene and Infection Control
https://www.readbyqxmd.com/read/28196977/synergistic-effects-of-vancomycin-and-%C3%AE-lactams-against-vancomycin-highly-resistant-staphylococcus-aureus
#9
Fumiaki Tabuchi, Yasuhiko Matsumoto, Masaki Ishii, Keita Tatsuno, Mitsuhiro Okazaki, Tomoaki Sato, Kyoji Moriya, Kazuhisa Sekimizu
We previously reported isolating vancomycin (VAN) highly resistant Staphylococcus aureus (VRSA) strains from clinical methicillin-resistant S. aureus strains by repeating steps of in vitro mutagenesis and VAN selection. Here we describe that the in vitro susceptibility of these VRSA strains to VAN was markedly increased by combined treatment with β-lactams such as ceftriaxone and oxacillin. Furthermore, in an in vivo silkworm infection model with VRSA, a combination of VAN and ceftriaxone exhibited therapeutic effects, whereas a combination of VAN and oxacillin did not...
February 15, 2017: Journal of Antibiotics
https://www.readbyqxmd.com/read/28195616/clinical-features-and-management-of-subretinal-abscesses-secondary-to-methicillin-resistant-staphylococcus-aureus-endogenous-endophthalmitis
#10
Jorge Fortun, Yasha S Modi, Angela Bessette, Jordan Heffez, Petros Carvounis, Daniel S Petkovsek, Nicholas G Anderson, Daniel Martin, Sunil Srivastava
BACKGROUND AND OBJECTIVE: To describe the clinical features, management, and immediate outcomes of patients with subretinal abscesses secondary to methicillin-resistant Staphylococcus aureus (MRSA) endogenous endophthalmitis. PATIENTS AND METHODS: Eleven eyes of seven patients were identified by retrospective chart review. Demographics, initial presentation, examination findings, imaging, cultures, treatments, and short-term outcomes were reviewed. RESULTS: Eleven eyes of seven patients presented with subretinal abscesses secondary to MRSA endogenous endophthalmitis...
February 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28195096/genotyping-of-clinical-and-environmental-multidrug-resistant-enterococcus-faecium-strains
#11
Leili Shokoohizadeh, Ashraf Mohabati Mobarez, Masoud Alebouyeh, Mohammad Reza Zali, Reza Ranjbar
CONTEXT: Multidrug resistant (MDR) Enterococcus faecium is a nosocomial pathogen and clonal complex 17 (CC17) is the main genetic subpopulation of E. faecium in hospitals worldwide. AIMS: There has thus far been no report of major E. faecium clones in Iranian hospitals. SUBJECTS AND METHODS: The present study analyzed strains of MDR E. faecium obtained from patients and the Intensive Care Unit environments using pulsed field gel electrophoresis (PFGE) and multilocus sequence typing (MLST) to determine the antibiotic resistance patterns and genetic features of the dominant...
January 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28194448/divergent-relationships-between-fecal-microbiota-and-metabolome-following-distinct-antibiotic-induced-disruptions
#12
Jocelyn M Choo, Tokuwa Kanno, Nur Masirah Mohd Zain, Lex E X Leong, Guy C J Abell, Julie E Keeble, Kenneth D Bruce, A James Mason, Geraint B Rogers
The intestinal microbiome plays an essential role in regulating many aspects of host physiology, and its disruption through antibiotic exposure has been implicated in the development of a range of serious pathologies. The complex metabolic relationships that exist between members of the intestinal microbiota and the potential redundancy in functional pathways mean that an integrative analysis of changes in both structure and function are needed to understand the impact of antibiotic exposure. We used a combination of next-generation sequencing and nuclear magnetic resonance (NMR) metabolomics to characterize the effects of two clinically important antibiotic treatments, ciprofloxacin and vancomycin-imipenem, on the intestinal microbiomes of female C57BL/6 mice...
January 2017: MSphere
https://www.readbyqxmd.com/read/28192677/prevalence-of-antibiotic-resistance-genes-in-bacterial-communities-associated-with-i-cladophora-glomerata-i-mats-along-the-nearshore-of-lake-ontario
#13
Michael Ibsen, Dinesh Fernando, Ayush Kumar, Andrea Kirkwood
The alga <i>Cladophora glomerata</i> can erupt in nuisance blooms throughout the lower Great Lakes. Since bacterial abundance increases with the emergence and decay of <i>Cladophora</i>, we investigated the prevalence of antibiotic resistance (ABR) in <i>Cladophora</i>-associated bacterial communities up-gradient and down-gradient from a large sewage treatment plant (STP) on Lake Ontario. Although STPs are well-known sources of ABR, we also expected detectable ABR from up-gradient wetland communities since they receive surface run-off from urban and agricultural sources...
February 13, 2017: Canadian Journal of Microbiology
https://www.readbyqxmd.com/read/28192644/perioperative-antibiotics-for-prevention-of-acute-endophthalmitis-after-cataract-surgery
#14
REVIEW
Emily W Gower, Kristina Lindsley, Samantha E Tulenko, Afshan A Nanji, Ilya Leyngold, Peter J McDonnell
BACKGROUND: Endophthalmitis is a severe inflammation of the anterior or posterior (or both) chambers of the eye that may be sterile or associated with infection. It is a potentially vision-threatening complication of cataract surgery. Prophylactic measures for endophthalmitis are targeted against various sources of infection. OBJECTIVES: To evaluate the effects of perioperative antibiotic prophylaxis for endophthalmitis following cataract surgery compared with no prophylaxis or other form of prophylaxis...
February 13, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28188831/lipoteichoic-acid-synthesis-inhibition-in-combination-with-antibiotics-abrogates-growth-of-multidrug-resistant-enterococcus-faecium
#15
Fernanda L Paganelli, Tim van de Kamer, Ellen C Brouwer, Helen L Leavis, Neil Woodford, Marc J M Bonten, Rob J L Willems, Antoni P A Hendrickx
Enterococcus faecium is a multidrug-resistant (MDR) nosocomial pathogen causing significant morbidity in debilitated patients. New antimicrobials are needed to treat antibiotic-resistant E. faecium infections in hospitalised patients. E. faecium incorporates lipoteichoic acid (LTA) (1,3-polyglycerol-phosphate linked to glycolipid) in its cell wall. The small-molecule inhibitor 1771 [2-oxo-2-(5-phenyl-1,3,4-oxadiazol-2-ylamino)ethyl 2-naphtho[2,1-b]furan-1-ylacetate] specifically blocks the activity of Staphylococcus aureus LtaS synthase, which polymerises 1,3-glycerolphosphate into LTA polymers...
February 7, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28187785/longevity-and-gender-as-the-risk-factors-of-methicillin-resistant-staphylococcus-aureus-infections-in-southern-poland
#16
Monika Pomorska-Wesołowska, Anna Różańska, Joanna Natkaniec, Barbara Gryglewska, Anna Szczypta, Mirosława Dzikowska, Agnieszka Chmielarczyk, Jadwiga Wójkowska-Mach
BACKGROUND: The proportion of older people among the general population has risen. Staphylococcus aureus (SA) constitutes a significant problem. Underlying disease and functional debility, predispose the older adult to staphylococcal carriage and infection, specially bloodstream infection and pneumonia. METHODS: This is a retrospective cohort study of older patients with SA infections. We analyzed a database containing the results of laboratory cultures from patients treated in 2013 for SA infections and selected 613 hospitalized and non-hospitalized people aged ≥60 years...
February 10, 2017: BMC Geriatrics
https://www.readbyqxmd.com/read/28184339/correlation-between-infective-factors-and-antibiotic-resistance-in-enterococci-clinical-isolates-in-west-of-iran
#17
Mohammad Reza Arabestani, Mona Nasaj, Seyed Masoud Mousavi
The present study was done to scrutinize the possible relation between infective genes and antimicrobial resistance in Enterococcus faecalis and Enterococcus faecium. Considering the fact that the presence of recognized infective determinants among clinical isolates may promote the emergence of infections and persistence of Enterococci in hospital settings, which can lead to an increase in antimicrobial resistance. 175 E. faecalis and 67 E. faecium isolated from clinical specimens were used. The isolates were identified, and then antibiotic susceptibility testing was performed...
January 2017: Chonnam Medical Journal
https://www.readbyqxmd.com/read/28184157/silver-loaded-nanotubular-structures-enhanced-bactericidal-efficiency-of-antibiotics-with-synergistic-effect-in-vitro-and-in-vivo
#18
Na Xu, Hao Cheng, Jiangwen Xu, Feng Li, Biao Gao, Zi Li, Chenghao Gao, Kaifu Huo, Jijiang Fu, Wei Xiong
Antibiotic-resistant bacteria have become a major issue due to the long-term use and abuse of antibiotics in treatments in clinics. The combination therapy of antibiotics and silver (Ag) nanoparticles is an effective way of both enhancing the antibacterial effect and decreasing the usage of antibiotics. Although the method has been proved to be effective in vitro, no in vivo tests have been carried out at present. Herein, we described a combination therapy of local delivery of Ag and systemic antibiotics treatment in vitro in an infection model of rat...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28182844/characterization-of-antibiotic-resistance-genes-from-lactobacillus-isolated-from-traditional-dairy-products
#19
Huiling Guo, Lin Pan, Lina Li, Jie Lu, Laiyu Kwok, Bilige Menghe, Heping Zhang, Wenyi Zhang
Lactobacilli are widely used as starter cultures or probiotics in yoghurt, cheese, beer, wine, pickles, preserved food, and silage. They are generally recognized as safe (GRAS). However, recent studies have shown that some lactic acid bacteria (LAB) strains carry antibiotic resistance genes and are resistant to antibiotics. Some of them may even transfer their intrinsic antibiotic resistance genes to other LAB or pathogens via horizontal gene transfer, thus threatening human health. A total of 33 Lactobacillus strains was isolated from fermented milk collected from different areas of China...
February 9, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28179249/penicillin-skin-testing-as-an-antimicrobial-stewardship-initiative
#20
Bruce M Jones, Christopher M Bland
PURPOSE: An initiative to determine the effects of penicillin skin testing (PST) from an antimicrobial stewardship perspective is described. SUMMARY: Penicillin allergy is one of the most frequently reported allergies; however, only about 10% of self-reports of penicillin allergy are accurate. Incorrect penicillin allergies are therefore a significant barrier to antimicrobial stewardship, with important clinical and economic implications, including increased antimicrobial resistance, an increased overall cost of care, increased length of stay, and, ultimately, increased mortality...
February 15, 2017: American Journal of Health-system Pharmacy: AJHP
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