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Extended spectrum beta-lactamases

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https://www.readbyqxmd.com/read/29340588/antimicrobial-resistant-klebsiella-pneumoniae-carriage-and-infection-in-specialized-geriatric-care-wards-linked-to-acquisition-in-the-referring-hospital
#1
Claire L Gorrie, Mirjana Mirceta, Ryan R Wick, Louise M Judd, Kelly L Wyres, Nicholas R Thomson, Richard A Strugnell, Nigel F Pratt, Jill S Garlick, Kerrie M Watson, Peter C Hunter, Steve A McGloughlin, Denis W Spelman, Adam W J Jenney, Kathryn E Holt
Background: Klebsiella pneumoniae is a leading cause of extended-spectrum beta-lactamase (ESBL) producing hospital-associated infections, for which elderly patients are at increased risk. Methods: We conducted a 1-year prospective cohort study, in which a third of patients admitted to two geriatric wards in a specialized hospital were recruited and screened for carriage of K. pneumoniae by microbiological culture. Clinical isolates were monitored via the hospital laboratory...
January 11, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29340452/detection-of-multidrug-resistant-pseudomonas-aeruginosa-harboring-bla-ges-1-and-bla-ges-11-in-recife-brazil
#2
Valdemir Vicente da Silva Júnior, Laura Durão Ferreira, Lílian Rodrigues Alves, Adriane Borges Cabral, Paula Regina Luna de Araújo Jácome, Paulo Sérgio Ramos de Araújo, Ana Catarina de Souza Lopes, Maria Amélia Vieira Maciel
INTRODUCTION: Pseudomonas aeruginosa, an important pathogen globally, presents several resistance mechanisms. This study aimed to investigate the presence of bla GES in clinical isolates of Pseudomonas aeruginosa obtained from various clinical specimens from patients admitted to three different hospitals in Recife, Brazil. The Guiana extended spectrum beta-lactamase (GES) enzymes are responsible for conferring broad spectrum resistance to beta-lactam drugs, including the carbapenems. METHODS: A total of 100 carbapenem-resistant P...
November 2017: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/29331548/effect-of-outpatient-antibiotics-for-urinary-tract-infections-on-antimicrobial-resistance-among-commensal-enterobacteriaceae-a-multinational-prospective-cohort-study
#3
Andrew J Stewardson, Jascha Vervoort, Niels Adriaenssens, Samuel Coenen, Maciek Godycki-Cwirko, Anna Kowalczyk, Benedikt Huttner, Christine Lammens, Surbhi Malhotra-Kumar, Herman Goossens, Stephan Harbarth
OBJECTIVES: We quantified the impact of antibiotics prescribed in primary care for urinary tract infections (UTIs) on intestinal colonisation by ciprofloxacin-resistant (CIP-RE) and extended-spectrum beta-lactamase-producing Enterobacteriaceae (ESBL-PE), while accounting for household clustering. METHODS: Prospective cohort study from January 2011 to August 2013 at primary care sites in Belgium, Poland and Switzerland. We recruited outpatients requiring antibiotics for suspected UTIs or asymptomatic bacteriuria (exposed patients), outpatients not requiring antibiotics (non-exposed patients), and 1-3 household contacts for each patient...
January 10, 2018: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/29330015/mother-to-child-transmission-of-extended-spectrum-beta-lactamase-producing-enterobacteriaceae
#4
Dana Danino, Rimma Melamed, Batya Sterer, Nurith Porat, Guy Hazan, Alex Gushanski, Eilon Shany, David Greenberg, Avraham Borer
BACKGROUND: Preterm infants are at high risk for extended spectrum beta-lactamase producing Enterobacteriaceae (ESBL-E) sepsis and neonatal intensive care unit (NICU) outbreaks. Maternal colonization with ESBL-E may be precursory to maternal-neonatal transmission. However, there is no consensus regarding surveillance of pregnant women for ESBL-E colonization. AIM: To identify pairs of mothers and offspring harbouring same-strain ESBL-E colonization and to determine whether maternal transmission may play a role in increasing ESBL-E carriage in preterm infants...
January 9, 2018: Journal of Hospital Infection
https://www.readbyqxmd.com/read/29327131/renal-vein-thrombosis-complicating-severe-acute-pyelonephritis-with-renal-abscesses-and-associated-bacteraemia-caused-by-extended-spectrum-beta-lactamase-producing-escherichia-coli
#5
Stelios F Assimakopoulos, Pantelis Kraniotis, Charalambos Gogos, Markos Marangos
Acute pyelonephritis might be complicated by the formation of renal and perirenal abscesses and very rarely by renal vein thrombosis, which is a life-threatening condition. The main causative agents of acute pyelonephritis are enterobacteriaceae with the incidence of extended-spectrum beta-lactamase (ESBL)-producing strains increasing worldwide. We present the case of a 71-year-old Greek man with history of diabetes mellitus and recent hospitalization, who suffered from severe pyelonephritis with renal abscesses formation and associated bacteraemia caused by ESBL-producing Escherichia coli, complicated by extensive thrombosis of the ipsilateral renal vein and its branches, protruding also in the inferior venal cava...
January 11, 2018: CEN Case Reports
https://www.readbyqxmd.com/read/29326391/zoonotic-bacteria-and-parasites-found-in-raw-meat-based-diets-for-cats-and-dogs
#6
Freek P J van Bree, Gertie C A M Bokken, Robin Mineur, Frits Franssen, Marieke Opsteegh, Joke W B van der Giessen, Len J A Lipman, Paul A M Overgaauw
Feeding raw meat-based diets (RMBDs) to companion animals has become increasingly popular. Since these diets may be contaminated with bacteria and parasites, they may pose a risk to both animal and human health. The purpose of this study was to test for the presence of zoonotic bacterial and parasitic pathogens in Dutch commercial RMBDs. We analysed 35 commercial frozen RMBDs from eight different brands. Escherichia coli serotype O157:H7 was isolated from eight products (23 per cent) and extended-spectrum beta-lactamases-producing E coli was found in 28 products (80 per cent)...
January 13, 2018: Veterinary Record
https://www.readbyqxmd.com/read/29323070/is-diabetes-mellitus-an-important-risk-factor-for-the-antibiotic-resistance-in-extraintestinal-pathogenic-escherichia-coli
#7
Arindam Chakraborty, Shalini Shenoy, Prabha Adhikari, Vishwas Saralaya, Satish Rao
Escherichia coli is a major cause of extraintestinal infections in all age group. However, the infection becomes more severe when patients have some underlying condition such as Diabetes Mellitus. The aim of the study was to determine whether diabetic mellitus may act as an important risk factor for the E. coli to express drug resistance property. This descriptive study was carried out in a multi-specialty tertiary care hospital. One hundred and twenty-seven E. coli isolates from diabetic patients, and one hundred seventy-three isolates from nondiabetic patients were studied...
October 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/29322236/-urosepsis
#8
Mathias W Pletz, Sebastian Weis, Christina Forstner, Florian Wagenlehner
Urosepsis is defined as a severe disease due to organ failure caused by a urinary tract infection. An empirical antibiotic therapy should be instigated within the first hour after diagnosis. Urine cultures and blood cultures should be performed before antibiotic treatment. Further diagnostics should be carried out at an early stage to enable an interventional focus control in the case of urinary tract obstruction or abscess formation, if necessary. Gram-negative pathogens are most frequently isolated. Extended spectrum beta-lactamase (ESBL) forming bacteria as a cause of urosepsis are increasing...
January 10, 2018: Der Urologe. Ausg. A
https://www.readbyqxmd.com/read/29319519/analyses-of-plasmids-harbouring-quinolone-resistance-determinants-in-enterobacteriaceae-members
#9
Bayri Erac, Fethiye Ferda Yilmaz, Ismail Ozturk, Sabire Sohret Aydemir, Mine Hosgor-Limoncu
The aim of this study was to explore the plasmid characteristics of eight clinical Enterobacteriaceae strains containing extended broad spectrum beta-lactamases and plasmid-mediated quinolone resistance. Plasmids were transferred by conjugation or transformation and resistance determinants were investigated by PCR. We showed that at least one plasmid harbouring qnrB or qnrS determinant was transferred by conjugation in five isolates. QepA determinant was confirmed to be on a non-conjugative plasmid. We found at least one beta-lactamase gene in seven of the eight clinical isolates having plasmid-mediated quinolone resistance, which indicated that these two resistance determinants were mostly on the same conjugative plasmids...
December 4, 2017: Polish Journal of Microbiology
https://www.readbyqxmd.com/read/29312660/high-prevalence-of-esbl-producing-e-coli-in-private-and-shared-latrines-in-an-informal-urban-settlement-in-dar-es-salaam-tanzania
#10
Stefan Erb, Lauren D'Mello-Guyett, Hamisi M Malebo, Robert M Njee, Fatuma Matwewe, Jeroen Ensink, Vladimira Hinic, Andreas Widmer, Reno Frei
Background: Data about the burden of extended-spectrum beta-lactamase (ESBL)-producing microorganisms in Africa are limited. Our study aimed to estimate the prevalence of human faecal ESBL carriage in the community of an informal urban settlement in Dar es Salaam (Tanzania, East Africa) by using environmental contamination of household latrines with ESBL as a surrogate marker. Methods: Within the context of a large survey in February 2014 assessing 636 randomly selected household latrines for faecal contamination by the detection of growth of E...
2018: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/29304069/naso-and-oropharyngeal-bacterial-carriage-in-nursing-home-residents-impact-of-multimorbidity-and-functional-impairment
#11
Anja Kwetkat, Wolfgang Pfister, Diana Pansow, Mathias W Pletz, Cornel C Sieber, Heike Hoyer
OBJECTIVE: From April 2013 to February 2014 we performed a multicentre prospective cross-sectional study in 541 German nursing home residents. We determined pharyngeal carriage of Streptococcus pneumoniae (primary objective) and other bacteria (secondary objective) in naso- and oropharyngeal swabs by culture-based standard procedures and explored the influence of multimorbidity and functional status on bacterial carriage. METHODS: Socio-demographic data, vaccination status, multimorbidity, nutrition and functional status defined by Comprehensive Geriatric Assessment were evaluated...
2018: PloS One
https://www.readbyqxmd.com/read/29295691/molecular-detection-of-tem-shv-and-ctx-m-genes-among-gram-negative-klebsiella-isolates
#12
Asma Naim, Asma Saeed, Taqdees Ara Malik
In the past few years, the use of antimicrobial drugs against a wide range of pathogens has increased significantly. This extensive use of drugs has increased the resistance rate in microbial community widely. Molecular techniques for the detection of resistance are more reliable as compared to the conventional phenotypic method. The family Enterobacteriaceae is considered to be an important cause of nosocomial infections due to its predominantly active species such as E. coli, Klebsiella and Pseudomonas. These organisms are mainly involved in causing pneumonia, sepsis, post-surgical and urinary tract infections...
January 1, 2018: Current Drug Delivery
https://www.readbyqxmd.com/read/29290482/first-report-on-extended-spectrum-beta-lactamase-esbl-producing-escherichia-coli-from-european-free-tailed-bats-tadarida-teniotis-in-portugal-a-one-health-approach-of-a-hidden-contamination-problem
#13
Andreia Garcês, Susana Correia, Francisco Amorim, José Eduardo Pereira, Gilberto Igrejas, Patrícia Poeta
The main aim of this study was to characterize the diversity of extended-spectrum beta-lactamases (ESBLs) in Escherichia coli isolates from European free tailed-bats (Tadarida teniotis) in Portugal. ESBL-producing E. coli isolates were recovered from 14 of 146 faecal samples (9.6%) and a total of 19 isolates were completely characterized. The more prevalent beta-lactamase genes detected were blaCTX-M-1 (57.9%) and blaCTX-M-3 (36.8%), followed by blaSHV (31.6%), blaTEM (21.1%), blaOXA (10.5%) and blaCTX-M-9 (10...
December 23, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/29286016/granulated-sugar-for-adjuvant-treatment-of-surgical-wound-infection-due-to-multi-drug-resistant-pathogens-in-a-child-with-sarcoma-a-case-report-and-literature-review
#14
Aldo Naselli, Laura Accame, Piero Buffa, Anna Loy, Roberto Bandettini, Alberto Garaventa, Ornella Della Casa Alberighi, Elio Castagnola
The use of sugar for treating wounds which are difficult to heal and positive to resistant pathogens has already been documented. The authors describe the successful treatment by direct instillation of granular sugar in the antibiotic-resistant infected surgical site wound of a child with sarcoma. Sugar instillation in the extended spectrum beta-lactamase (ESBL)-producing Enterobacter cloacae positive wound, in addition to systemic treatment with meropenem and levofloxacin, allowed culture negativization in six days and complete wound healing in 30 days...
December 1, 2017: Le Infezioni in Medicina
https://www.readbyqxmd.com/read/29282504/bacteriophages-as-biological-control-agents-of-enteric-bacteria-contaminating-edible-oysters
#15
Tuan Son Le, Paul C Southgate, Wayne O'Connor, Sue Poole, D Ipek Kurtbӧke
Bacterial contamination on seafood resulting from unhygienic food-handling practices causes foodborne diseases and significant revenue losses. Moreover, control measures are complicated by a high prevalence of antibiotic-resistant bacteria. Alternative measures such as the phage therapy, therefore, is considered as an environmental and consumer-friendly biological control strategy for controlling such bacterial contamination. In this study, we determined the effectiveness of a bacteriophage cocktail in controlling E...
December 27, 2017: Current Microbiology
https://www.readbyqxmd.com/read/29279590/distribution-of-adeb-and-ndm-1-genes-in-multidrug-resistant-acinetobacter-baumannii-isolated-from-infected-wound-of-patients-admitted-in-a-tertiary-care-hospital-in-bangladesh
#16
M J Hasan, S M Shamsuzzaman
BACKGROUND: The adeB gene in Acinetobacter baumannii regulates the bacterial internal drug efflux pump that plays a significant role in drug resistance. The aim of our study was to determine the occurrence of adeB gene in multidrug resistant and New Delhi metallo-beta-lactamase-1 (NDM- 1) gene in imipenem resistant Acinetobacter baumannii isolated from wound swab samples in a tertiary care hospital of Bangladesh. METHODS: A total of 345 wound swab samples were tested for bacterial pathogens...
December 2017: Malaysian Journal of Pathology
https://www.readbyqxmd.com/read/29277727/antimicrobial-resistance-in-urine-and-skin-isolates-in-timor-leste
#17
Ian Marr, Nevio Sarmento, Matt O'Brien, Karl Lee, Celia Gusmao, Gloria de Castro, Sonja Janson, Steven Y C Tong, Rob W Baird, Joshua R Francis
OBJECTIVES: High rates of antimicrobial resistance are seen throughout Southeast Asia. Limited antimicrobial resistance data exists for Timor-Leste, which is situated on the south-eastern portion of the Malay Archipelago. The purpose of this study was to identify antimicrobial resistance in bacteria isolated from urine and skin swabs from patients in Dili, Timor-Leste. METHODS: Urine and skin swabs were collected from symptomatic patients and processed for bacterial culture in Timor-Leste...
December 22, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/29259134/computational-antimicrobial-peptide-design-and-evaluation-against-multidrug-resistant-clinical-isolates-of-bacteria
#18
Deepesh Nagarajan, Tushar Nagarajan, Natasha Roy, Omkar Kulkarni, Sathyabaarathi Ravichandran, Madhulika Mishra, Dipshikha Chakravortty, Nagasuma Chandra
There is a pressing need for new therapeutics to combat multi-drug and carbapenem-resistant bacterial pathogens. This challenge prompted us to use a long short-term memory (LSTM) language model to understand the underlying grammar, i.e. the arrangement and frequencies of amino acid residues, in known antimicrobial peptide sequences. According to the output of our LSTM network, we synthesized 10 peptides and tested them against known bacterial pathogens. All of these peptides displayed broad-spectrum antimicrobial activity, validating our LSTM-based peptide design approach...
December 19, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29244630/epidemiology-and-outcomes-of-bloodstream-infections-in-patients-with-solid-tumors-in-a-central-american-population-at-mexico-hospital-san-jose-costa-rica
#19
Jorge Calvo-Lon, Denis U Landaverde, Allan Ramos-Esquivel, Juan M Villalobos-Vindas
Purpose Bloodstream infections (BSIs) are an important cause of mortality in patients with solid tumors. We conducted a retrospective study to evaluate the epidemiologic profile and mortality of patients with solid tumors who have BSIs and were admitted to Mexico Hospital. This is the first study in Costa Rica and Central America describing the current epidemiologic situation. Methods We analyzed the infectious disease database for BSIs in patients with solid tumors admitted to Mexico Hospital from January 2012 to December 2014...
December 15, 2017: Journal of Global Oncology
https://www.readbyqxmd.com/read/29241300/prevalence-of-fluoroquinolone-resistant-rectal-flora-in-patients-undergoing-transrectal-ultrasound-guided-prostate-needle-biopsy-a-prospective-multicenter-study
#20
Ho Seok Chung, Eu Chang Hwang, Ho Song Yu, Seung Il Jung, Sun Ju Lee, Dong Hoon Lim, Won Jin Cho, Hyun Sop Choe, Seung-Ju Lee, Sung Woon Park
OBJECTIVES: To estimate the prevalence of fluoroquinolone-resistant rectal flora in patients undergoing transrectal ultrasound-guided prostate needle biopsy and to identify the high-risk groups. METHODS: From January 2015 to March 2016, rectal swabs of 557 men who underwent transrectal ultrasound-guided prostate needle biopsy were obtained from five institutions. Clinical variables, including demographics, rectal swab culture results and infectious complications, were evaluated...
December 14, 2017: International Journal of Urology: Official Journal of the Japanese Urological Association
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