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Multi drug resistant bacteria

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https://www.readbyqxmd.com/read/28319476/anesthesia-in-patients-with-infectious-disease-caused-by-multi-drug-resistant-bacteria
#1
Sharon Einav, Yonit Wiener-Well
PURPOSE OF REVIEW: Up to 50% of specific bacterial strains in healthcare admission facilities are multidrug-resistant organisms (MDROs). Involvement of anesthesiologists in management of patients carrying/at risk of carrying MDROs may decrease transmission in the Operating Room (OR). RECENT FINDINGS: Anesthesiologists, their work area and tools have all been implicated in MDRO outbreaks. Causes include contamination of external ventilation circuits and noncontribution of filters to prevention, inappropriate decontamination procedures for nondisposable equipment (e...
March 17, 2017: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/28306387/help-is-on-the-way-monoclonal-antibody-therapy-for-multi-drug-resistant-bacteria
#2
Rachelle Babb, Liise-Anne Pirofski
No abstract text is available yet for this article.
March 17, 2017: Virulence
https://www.readbyqxmd.com/read/28287735/targeted-antibiotic-delivery-selective-siderophore-conjugation-with-daptomycin-confers-potent-activity-against-multi-drug-resistant-acinetobacter-baumannii-both-in-vitro-and-in-vivo
#3
Manuka Ghosh, Patricia A Miller, Ute Möllmann, William D Claypool, Valerie A Schroeder, William R Wolter, Mark Suckow, Honglin Yu, Shuang Li, Weiqiang Huang, Jaroslav Zajicek, Marvin J Miller
In order to address the dire need for new antibiotics to treat specific strains of drug resistant Gram-negative bacterial infections, a mixed ligand analog of the natural Acinetobacter baumannii selective siderophore, fimsbactin, was coupled to daptomycin, a Gram-positive only antibiotic. The resulting conjugate, 11, has potent activity against multi-drug resistant strains of A. baumannii, both in vitro and in vivo. The study also indicates that conjugation of siderophores to "drugs" that are much larger than the siderophore (iron transport agent) itself facilitates active uptake that circumvents the normal permeability problems in Gram-negative bacteria...
March 13, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28283923/characterization-of-staphylococcus-aureus-in-goose-feces-from-state-parks-in-northeast-ohio
#4
Dipendra Thapaliya, Mark Dalman, Jhalka Kadariya, Katie Little, Victoria Mansell, Mohammed Y Taha, Dylan Grenier, Tara C Smith
Staphylococcus aureus can colonize a range of species. Although numerous studies have isolated pathogenic bacteria from wild birds, very little is known regarding S. aureus and their potential to spread methicillin-resistant (MRSA) strains. The objective of this study was to determine the presence and molecular characteristics of S. aureus in geese fecal samples collected from ten state parks across Northeast Ohio (NEO). A total of 182 fecal samples from Canada geese (Branta canadensis) were collected in April 2015...
March 10, 2017: EcoHealth
https://www.readbyqxmd.com/read/28275372/non-disulfide-bridge-peptide-5-5-from-the-scorpion-hadrurus-gertschi-inhibits-the-growth-of-mycobacterium-abscessus-subsp-massiliense
#5
Monalisa M Trentini, Rogério C das Neves, Bruno de Paula Oliveira Santos, Roosevelt A DaSilva, Adolfo C Barros de Souza, Márcia R Mortari, Elisabeth F Schwartz, André Kipnis, Ana P Junqueira-Kipnis
Multi-drug resistant microorganisms have been a growing concern during the last decades due to their contribution in mortality rates worldwide. Antimicrobial peptides (AMPs) are broad spectrum antimicrobial agents that display potent microbicidal activity against a wide range of microorganisms. AMPs generally have a rapid mode of action that reduces the risk of resistance developing among pathogens. In this study, an AMP derived from scorpion venom, NDBP-5.5, was evaluated against Mycobacterium abscessus subsp...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28273965/emergence-of-carbapenem-resistant-non-fermenting-gram-negative-bacilli-isolated-in-an-icu-of-a-tertiary-care-hospital
#6
Sonika Agarwal, Barnali Kakati, Sushant Khanduri, Shalini Gupta
INTRODUCTION: The emergence and spread of Multi-Drug Resistant (MDR) Non-Fermenting Gram-Negative Bacilli (NFGNB) in Intensive Care Units (ICU) and their genetic potential to transmit diverse antibiotic resistance regardless of their ability to ferment glucose poses a major threat in hospitals. The complex interplay of clonal spread, persistence, transmission of resistance elements and cell-cell interaction leads to the difficulty in controlling infections caused by these multi drug-resistant strains...
January 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28272303/effects-of-silver-nanoparticles-on-multiple-drug-resistant-strains-of-staphylococcus-aureus-and-pseudomonas-aeruginosa-from-mastitis-infected-goats-an-alternative-approach-for-antimicrobial-therapy
#7
Yu-Guo Yuan, Qiu-Ling Peng, Sangiliyandi Gurunathan
Recently, silver nanoparticles (AgNPs) have been widely used in various applications as antimicrobial agents, anticancer, diagnostics, biomarkers, cell labels, and drug delivery systems for the treatment of various diseases. Microorganisms generally acquire resistance to antibiotics through the course of antibacterial therapy. Multi-drug resistance (MDR) has become a growing problem in the treatment of infectious diseases, and the widespread use of broad-spectrum antibiotics has resulted in the development of antibiotic resistance by numerous human and animal bacterial pathogens...
March 6, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28268024/presence-distribution-and-molecular-epidemiology-of-multi-drug-resistant-gram-negative-bacilli-from-medical-personnel-of-intensive-care-units-in-tianjin-china-2007-2015
#8
H Liu, C N Fei, Y Zhang, G W Liu, J Liu, J Dong
BACKGROUND: Multi-drug-resistant Gram-negative bacteria (MDRGNB) have become an important cause of nosocomial infection in intensive care units (ICUs). AIMS: To investigate the molecular epidemiology of MDRGNB isolated from medical personnel (MP) and non-medical personnel (NMP) at 69 ICUs in Tianjin, China. METHODS: From April 2007 to October 2015, 2636 nasal and hand swab samples from 1185 MP and 133 NMP were cultured for GNB (including MDRGNB), meticillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant enterococci (VRE)...
January 28, 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/28264490/plakofuranolactone-as-a-quorum-quenching-agent-from-the-indonesian-sponge-plakortis-cf-lita
#9
Valeria Costantino, Gerardo Della Sala, Kumar Saurav, Roberta Teta, Rinat Bar-Shalom, Alfonso Mangoni, Laura Steindler
There is an urgent need for novel strategies to fight drug resistance and multi-drug resistance. As an alternative to the classic antibiotic therapy, attenuation of the bacteria virulence affecting their Quorum sensing (QS) system is a promising approach. Quorum sensing (QS) is a genetic regulation system that allows bacteria to communicate with each other and coordinate group behaviors. A new γ-lactone that is capable of inhibiting the LasI/R QS system, plakofuranolactone (1), was discovered in the extract of the marine sponge Plakortis cf...
February 28, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28261736/dual-antibacterial-activities-of-a-chitosan-modified-upconversion-photodynamic-therapy-system-against-drug-resistant-bacteria-in-deep-tissue
#10
Siwen Li, Sisi Cui, Deyan Yin, Qiuyun Zhu, Yuxiang Ma, Zhiyu Qian, Yueqing Gu
Photodynamic therapy (PDT) has recently been proposed as an innovative approach to combat multi-drug resistant (MDR) bacteria. To improve the penetration depth of current PDT, a core-shell upconversion nanoparticle (UCNP) based PDT system, composed of a cationic N-octyl chitosan (OC) coated UCNP loaded with the photosensitizer zinc phthalocyanine (OC-UCNP-ZnPc), was constructed to enhance the antibacterial efficacy against MDR bacteria in deep tissue. The core-shell UCNPs displayed a higher upconversion fluorescence efficiency compared to the inner UCNP core...
March 6, 2017: Nanoscale
https://www.readbyqxmd.com/read/28251266/rapid-killing-of-bacteria-by-a-new-type-of-photosensitizer
#11
Yaxin Zhang, Ke Zheng, Zhuo Chen, Jincan Chen, Ping Hu, Linrong Cai, Zafar Iqbal, Mingdong Huang
Photodynamic antimicrobial chemotherapy (PACT) uses non-traditional mechanisms (free radicals) and is a highly advocated method with promise of inactivating drug-resistance bacteria for local infections. However, there is no related drug used in clinical practice yet. Therefore, new photosensitizers for PACT are under active development. Here, we report the synthesis of a series of photosensitizers with variable positive charges (ZnPc(TAP)4(n+), n = 0, 4, 8, 12) and their inactivation against Gram-positive (Staphylococcus aureus) and Gram-negative (Escherichia coli) bacteria...
March 1, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28249575/first-report-on-bla-ndm-1-producing-acinetobacter-baumannii-in-three-clinical-isolates-from-ethiopia
#12
Michael Pritsch, Ahmed Zeynudin, Maxim Messerer, Simon Baumer, Gabriele Liegl, Soeren Schubert, Thomas Löscher, Michael Hoelscher, Tefara Belachew, Andrea Rachow, Andreas Wieser
BACKGROUND: Multidrug-resistant Gram-negative bacterial infections are recognized as one of the major threats to global health. In this study, we describe for the first time bla NDM-1 gene carrying organisms from Ethiopia consisting of three Acinetobacter baumannii isolates from patients in Jimma. METHODS: Besides phenotypic antimicrobial susceptibility testing, molecular strain typing and sequencing was performed to describe the phylogenetic relation of the Ethiopian isolates in detail in relation to published isolates from all over the globe...
March 1, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28248674/prevalence-serotype-distribution-and-antimicrobial-resistance-of-salmonella-isolated-from-food-products-in-morocco
#13
Nadia Amajoud, Brahim Bouchrif, Mohammed El Maadoudi, Nadia Skalli Senhaji, Bouchra Karraouan, Abdeltif El Harsal, Jamal El Abrini
INTRODUCTION: Salmonellosis is one of the most common foodborne diseases worldwide. The irrational use of antibiotics in medicine and in animal feed has greatly promoted the emergence and spread of resistant strains of non-typhoidal Salmonella. METHODOLOGY: A total of 464 food products were collected in Tetouan from January 2010 to December 2012. The isolation and identification of Salmonella were performed according to Moroccan standard 08.0.116. All isolates were serotyped and were then tested for antibiotic resistance using the disk diffusion method...
February 28, 2017: Journal of Infection in Developing Countries
https://www.readbyqxmd.com/read/28225903/sphygmomanometers-and-thermometers-as-potential-fomites-of-staphylococcus-haemolyticus-biofilm-formation-in-the-presence-of-antibiotics
#14
Bruna Pinto Ribeiro Sued, Paula Marcele Afonso Pereira, Yuri Vieira Faria, Juliana Nunes Ramos, Vanessa Batista Binatti, Kátia Regina Netto Dos Santos, Sérgio Henrique Seabra, Raphael Hirata, Verônica Viana Vieira, Ana Luíza Mattos-Guaraldi, José Augusto Adler Pereira
BACKGROUND: The association between Staphylococcus haemolyticus and severe nosocomial infections is increasing. However, the extent to which fomites contribute to the dissemination of this pathogen through patients and hospital wards remains unknown. OBJECTIVES: In the present study, sphygmomanometers and thermometers were evaluated as potential fomites of oxacillin-resistant S. haemolyticus (ORSH). The influence of oxacillin and vancomycin on biofilm formation by ORSH strains isolated from fomites was also investigated...
March 2017: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/28225897/sphygmomanometers-and-thermometers-as-potential-fomites-of-staphylococcus-haemolyticus-biofilm-formation-in-the-presence-of-antibiotics
#15
Bruna Pinto Ribeiro Sued, Paula Marcele Afonso Pereira, Yuri Vieira Faria, Juliana Nunes Ramos, Vanessa Batista Binatti, Kátia Regina Netto Dos Santos, Sérgio Henrique Seabra, Raphael Hirata, Verônica Viana Vieira, Ana Luíza Mattos-Guaraldi, José Augusto Adler Pereira
BACKGROUND: The association between Staphylococcus haemolyticus and severe nosocomial infections is increasing. However, the extent to which fomites contribute to the dissemination of this pathogen through patients and hospital wards remains unknown. OBJECTIVES: In the present study, sphygmomanometers and thermometers were evaluated as potential fomites of oxacillin-resistant S. haemolyticus (ORSH). The influence of oxacillin and vancomycin on biofilm formation by ORSH strains isolated from fomites was also investigated...
February 16, 2017: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/28218694/antibacterial%C3%A2-activities%C3%A2-of%C3%A2-bacteria%C3%A2-isolated%C3%A2-from%C3%A2-the%C3%A2-marine%C3%A2-sponges%C3%A2-isodictya%C3%A2-compressa%C3%A2-and%C3%A2-higginsia%C3%A2-bidentifera%C3%A2-collected%C3%A2-from%C3%A2-algoa%C3%A2-bay-%C3%A2-south%C3%A2-africa
#16
Relebohile Matthew Matobole, Leonardo Joaquim van Zyl, Shirley Parker-Nance, Michael T Davies-Coleman, Marla Trindade
Due to the rise in multi-drug resistant pathogens and other diseases, there is renewed interest in marine sponge endosymbionts as a rich source of natural products (NPs). The South African marine environment is rich in marine biota that remains largely unexplored and may represent an important source for the discovery of novel NPs. We first investigated the bacterial diversity associated with five South African marine sponges, whose microbial populations had not previously been investigated, and select the two sponges (Isodictya compressa and Higginsia bidentifera) with highest species richness to culture bacteria...
February 17, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28216302/long-term-antimicrobial-effect-of-nisin-released-from-electrospun-triaxial-fiber-membranes
#17
Daewoo Han, Shalli Sherman, Shaun Filocamo, Andrew J Steckl
Electrospun membranes encapsulating nisin in the core of multi-layer coaxial fibers, with a hydrophobic PCL intermediate layer and a hygroscopic cellulose acetate sheath, have been demonstrated to provide long-term antimicrobial activity combined with a hygroscopic outer layer. Antimicrobial performance has been evaluated using modified versions of the antimicrobial textile test AATCC 100 and AATCC 147 against Staphylococcus aureus. The AATCC 147 tests indicate that antimicrobial activity persists up to 7days...
February 16, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28209130/determination-of-antibacterial-activity-and-minimum-inhibitory-concentration-of-larval-extract-of-fly-via-resazurin-based-turbidometric-assay
#18
Chien Huey Teh, Wasi Ahmad Nazni, Ab Hamid Nurulhusna, Ahmad Norazah, Han Lim Lee
BACKGROUND: Antimicrobial resistance is currently a major global issue. As the rate of emergence of antimicrobial resistance has superseded the rate of discovery and introduction of new effective drugs, the medical arsenal now is experiencing shortage of effective drugs to combat diseases, particularly against diseases caused by the dreadful multidrug-resistant strains, such as the methicillin-resistant Staphylococcus aureus (MRSA). The ability of fly larvae to thrive in septic habitats has prompted us to determine the antibacterial activity and minimum inhibitory concentrations (MICs) of larval extract of flies, namely Lucilia cuprina, Sarcophaga peregrina and Musca domestica against 4 pathogenic bacteria [Staphylococcus aureus, methicillin-resistant S...
February 16, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28201974/mur-ligase-inhibitors-as-anti-bacterials-a-comprehensive-review
#19
Jaiprakash N Sangshetti, Suyog S Joshi, Rajendra H Patil, Devanand B Shinde
Exploring a new target for antibacterial drug discovery has gained much attention because of the emergence of Multidrug Resistance (MDR) strains of bacteria. To overcome this problem the development of novel antibacterial was considered as highest priority task and was one of the biggest challenges since multiple factors were involved. The bacterial peptidoglycan biosynthetic pathway has been well documented in the last few years and has been found to be an imperative source for the development of novel antibacterial agents with high target specificity as they are essential for bacterial survival and have no homologs in humans...
February 14, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28192223/emergence-of-multi-drug-resistance-among-soil-bacteria-exposing-to-insecticides
#20
Kirubakaran Rangasamy, Murugan Athiappan, Natarajan Devarajan, Javid A Parray
Impacts of pesticide exposure on the soil microbial flora and cross resistance to antibiotics have not been well documented. Development of antibiotic resistance is a common issue among soil bacteria which are exposing to pesticides continuously at sub-lethal concentration. The present study was focused to evaluate the correlation between pesticide exposures and evolution of multi drug resistance among isolates collected from soil applied with insecticides. Twenty five insecticide (Monochrotophos) degrading bacteria were isolated from contaminated agricultural soil...
February 10, 2017: Microbial Pathogenesis
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