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https://www.readbyqxmd.com/read/28724243/extensively-and-multi-drug-resistant-acinetobacter-baumannii-recovered-from-technosol-at-a-dump-site-in-croatia
#1
Jasna Hrenovic, Goran Durn, Martina Seruga Music, Svjetlana Dekic, Tamara Troskot-Corbic, Dijana Skoric
In a karst pit above City of Rijeka in Croatia the hazardous industrial waste was continuously disposed from 1955 to 1990, and later it was periodically used as an illegal dump site. The surface part of a technosol at the edge of dump was analysed mineralogically, geochemically and bacteriologically. From the technosol rich in petroleum hydrocarbons and heavy metals three isolates of Acinetobacter baumannii were recovered. Isolates from technosol shared many features that are previously described for clinically isolates: the affiliation to IC1 and 2, multi-drug resistant (MDR) or extensively drug-resistant (XDR) antibiotic resistance profile, carbapenem resistance mediated by blaOXA72 and blaOXA23 genes, and the expression of virulence factors...
July 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28720731/an-in-vitro-chicken-gut-model-demonstrates-transfer-of-a-multidrug-resistance-plasmid-from-salmonella-to-commensal-escherichia-coli
#2
Roderick M Card, Shaun A Cawthraw, Javier Nunez-Garcia, Richard J Ellis, Gemma Kay, Mark J Pallen, Martin J Woodward, Muna F Anjum
The chicken gastrointestinal tract is richly populated by commensal bacteria that fulfill various beneficial roles for the host, including helping to resist colonization by pathogens. It can also facilitate the conjugative transfer of multidrug resistance (MDR) plasmids between commensal and pathogenic bacteria which is a significant public and animal health concern as it may affect our ability to treat bacterial infections. We used an in vitro chemostat system to approximate the chicken cecal microbiota, simulate colonization by an MDR Salmonella pathogen, and examine the dynamics of transfer of its MDR plasmid harboring several genes, including the extended-spectrum beta-lactamase blaCTX-M1 We also evaluated the impact of cefotaxime administration on plasmid transfer and microbial diversity...
July 18, 2017: MBio
https://www.readbyqxmd.com/read/28719657/isolation-and-in-vitro-evaluation-of-bacteriophages-against-mdr-bacterial-isolates-from-septic-wound-infections
#3
Roja Rani Pallavali, Vijaya Lakshmi Degati, Dakshayani Lomada, Madhava C Reddy, Vijaya Raghava Prasad Durbaka
Multi-drug resistance has become a major problem for the treatment of pathogenic bacterial infections. The use of bacteriophages is an attractive approach to overcome the problem of drug resistance in several pathogens that cause fatal diseases. Our study aimed to isolate multi drug resistant bacteria from patients with septic wounds and then isolate and apply bacteriophages in vitro as alternative therapeutic agents. Pus samples were aseptically collected from Rajiv Gandhi Institute of Medical Science (RIMS), Kadapa, A...
2017: PloS One
https://www.readbyqxmd.com/read/28719354/thymol-and-carvacrol-strongly-inhibit-biofilm-formation-and-growth-of-carbapenemase-producing-gram-negative-bacilli
#4
P Raei, T Pourlak, M Y Memar, N Alizadeh, M Aghamali, E Zeinalzadeh, M Asgharzadeh, H S Kafil
Discovery of novel drugs with new mechanisms of action and without cross-reaction with current therapeutic agents is crucial in the management of infections caused by multi-drug resistant (MDR) bacteria. The aim of the present study was to investigate effects of carvacrol and thymol on biofilm formation and antimicrobial activity against different carbapenemase-producing Gram negative bacilli. The antimicrobial and antibiofilm effect of thymol and carvacrol was investigated against strains harboring different genes related to carbapenemase resistance...
May 20, 2017: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/28716451/multidrug-resistant-pseudomonas-aeruginosa-lower-respiratory-tract-infections-in-the-intensive-care-unit-prevalence-and-risk-factors
#5
Trang D Trinh, Evan J Zasowski, Kimberly C Claeys, Abdalhamid M Lagnf, Shravya Kidambi, Susan L Davis, Michael J Rybak
Intensive care unit (ICU) admission is a risk for multidrug-resistant (MDR) Pseudomonas aeruginosa, but factors specific to critically ill pneumonia patients are not fully characterized. Objective was to determine risk factors associated with MDR P. aeruginosa pneumonia among ICU patients. This was a retrospective case-control study of P. aeruginosa pneumonia in the ICU; cystic fibrosis and colonizers were excluded. Risk factors included comorbid conditions and prior healthcare exposure (anti-pseudomonal antibiotics, hospitalizations, nursing home, P...
June 19, 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/28716109/clinical-characteristics-and-outcomes-of-pseudomonas-aeruginosa-bacteremia-in-febrile-neutropenic-children-and-adolescents-with-the-impact-of-antibiotic-resistance-a-retrospective-study
#6
Hyo Sup Kim, Bo Kyoung Park, Seong Koo Kim, Seung Beom Han, Jae Wook Lee, Dong-Gun Lee, Nack-Gyun Chung, Bin Cho, Dae Chul Jeong, Jin Han Kang
BACKGROUND: Although the proportion of Pseudomonas aeruginosa infections has reduced after the introduction of antibiotics with anti-pseudomonal effects, P. aeruginosa bacteremia still causes high mortality in immunocompromised patients. This study determined the clinical characteristics and outcomes of P. aeruginosa bacteremia and the antibiotic susceptibilities of strains isolated from febrile neutropenic patients. METHODS: Thirty-one febrile neutropenic children and adolescents with underlying hematologic/oncologic disorders diagnosed with P...
July 17, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28712104/do-bacteria-isolated-from-icu-patients-eskape-antibiotic-treatment-in-vitro-susceptibility-of-the-enterobacteriaceae-family-to-tigecycline
#7
Katarzyna Talaga-Ćwiertnia, Paweł Krzyściak, Małgorzata Bulanda
BACKGROUND: Enterobacteriaceae are currently causing the majority of healthcare-associated infections (HAI) and simultaneously expressing increasing levels of antibiotic resistance. The purpose of this study is to assess the in vitro sensitivity of MDR strains from the family Enterobacteriaceae to tigecycline in relation to their origin from patients hospitalized in intensive care units (ICUs) and non-ICUs. METHODS: The study involved 156 clinically-significant strains of the Enterobacteriaceae family isolated from patients with cIAIs and/or cSSSIs hospitalized in ICUs and other surgical departments...
July 16, 2017: Anaesthesiology Intensive Therapy
https://www.readbyqxmd.com/read/28711677/extended-spectrum-of-antibiotic-susceptibility-for-tuberculosis-djibouti
#8
Fériel Bouzid, Hélène Astier, Djaltou Aboubaker Osman, Emilie Javelle, Mohamed Osman Hassan, Fabrice Simon, Eric Garnotel, Michel Drancourt
The Horn of Africa suffers from a high prevalence of tuberculosis which is reported to be partly driven by multi-drug resistant (MDR) Mycobacterium tuberculosis strictu sensu strains. We conducted a prospective study to investigate M. tuberculosis complex species causing tuberculosis in Djibouti; along with their in vitro susceptibility to standard anti-tuberculous antibiotics, in addition to clofazimine, minocycline, chloramphenicol and sulfadiazine. Among the 118 mycobacteria isolates from 118 successive patients with suspected pulmonary tuberculosis, 111 strains of M...
July 12, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28710743/prevalence-of-tem-shv-and-ctx-m-genes-of-extended-spectrum-%C3%AE-lactamase-producing-escherichia-coli-strains-isolated-from-urinary-tract-infections-in-adults
#9
Jayanti Jena, Rajesh Kumar Sahoo, Nagen Kumar Debata, Enketeswara Subudhi
Urinary tract infections (UTIs) are one of the major sources of widespread infectious diseases in the community as well as in the hospitals which increase the cause of morbidity and mortality. Prevalence of extended-spectrum-β-lactamase (ESBL)-producing uropathogenic E. coli isolates has been found to be increased rapidly across the world. The present study was undertaken to find out the frequency of bla TEM, bla CTX-M, and bla SHV genes among E. coli isolates from UTI and detect their sensitivity pattern...
August 2017: 3 Biotech
https://www.readbyqxmd.com/read/28710611/bad-bacteria-in-acute-appendicitis-rare-but-relevant
#10
Alexander Reinisch, Patrizia Malkomes, Nils Habbe, Wolf Otto Bechstein, Juliane Liese
PURPOSE: Bacterial infections are a factor for morbidity in patients with acute appendicitis (AA). The spreading of multidrug-resistant (MDR) bacteria is a significant problem in surgery, and the most relevant MDR pathogens are summarized as Enterobacteriaceae, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterococci (ESKAPE) bacteria. Data regarding the species and distribution of bacteria in AA are available, but information about the resistances and their relevance is deficient...
July 15, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/28707597/detection-of-extended-spectrum-beta-lactamases-esbls-and-antibiotic-susceptibility-patterns-in-klebsiella-pneumoniae-in-western-iran
#11
Pegah Shakib, Rashid Ramazan Zadeh, Morovat Taherikalani, Bijan Nouri
BACKGROUND: Production of Beta-Lactamase enzymes, especially extended-spectrum Beta -Lactamases (ESBL), is a primary mechanism of resistance in these bacteria. The purpose of this study was detection of blaTEM, blaSHV, blaCTX-M, blaCTX-M-15, blaPER and blaVEB in K. pneumoniae, isolated from clinical specimens by the PCR method and antibiotic susceptibility patterns in these strains isolated, in Sanandaj city, Iran. MATERIALS AND METHODS: During a period from October 2015 to July 2016, 52 K...
July 13, 2017: Infectious Disorders Drug Targets
https://www.readbyqxmd.com/read/28707584/a-review-of-recent-advancements-in-anti-tubercular-molecular-hybrids
#12
Parvesh Singh, Bukola Jaiyeola, Nagaraju Kerru, Oluwakemi Ebenezer, Ajay Bissessur
Tuberculosis (TB) accounts for millions of deaths worldwide every year. Diverse survival strategies adopted by Mycobacterium tuberculosis (Mtb) has substantially hindered the existing anti-TB regimen thereby leading to multidrug-resistant (MDR) and extremely drug-resistant (XDR) strains of TB. The steady decrease in current antibiotics' efficacy against these adversities is an indicator that their adequate replenishment in future is almost impossible, placing society on the precipice of a catastrophe. Over the past many years, researchers have been continuously generating new armamentarium of anti-TB drugs by tailoring the properties of available drugs or designing completely new agents...
July 12, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28706882/distribution-of-the-strains-of-multidrug-resistant-extensively-drug-resistant-and-pandrug-resistant-pseudomonas-aeruginosa-isolates-from-burn-patients
#13
Hajieh Ghasemian Safaei, Sharareh Moghim, Bahram Nasr Isfahani, Hossein Fazeli, Farkhondeh Poursina, Sima Yadegari, Pourya Nasirmoghadas, Seyed Abolfazl Hosseininassab Nodoushan
BACKGROUND: Pseudomonas aeruginosa is an opportunistic and Gram-negative pathogen that is used as the most important factor in burn wound infections, and due to the rapid acquisition of multidrug resistance (MDR), it causes high mortality rates in these sectors. Thus, diagnosis and assessment of antibiotic resistance patterns are very important in these patients. The aim of this study was to evaluate antibiotic resistance pattern and determining P. aeruginosa MDR. MATERIALS AND METHODS: In this study, phenotypic, biochemical, and polymerase chain reaction tests were used to identify P...
2017: Advanced Biomedical Research
https://www.readbyqxmd.com/read/28697755/spread-of-resistant-gram-negatives-in-a-sri-lankan-intensive-care-unit
#14
Kavinda Tissera, Veranja Liyanapathirana, Nilanthi Dissanayake, Vasanthi Pinto, Asela Ekanayake, Manjula Tennakoon, Dinuka Adasooriya, Dulmini Nanayakkara
BACKGROUND: Infections with multi drug resistant (MDR) organisms are a major problem in intensive care units (ICUs). Proper infection control procedures are mandatory to combat the spread of resistant organisms within ICUs. Well stablished surveillance programmes will enhance the adherence of the staff to infection control protocols. The study was conducted to assess the feasibility of using basic molecular typing methods and routine hospital data for laboratory surveillance of resistance organisms in resource limited settings...
July 11, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28697438/assessment-of-the-correlation-among-antibiotic-resistance-adherence-to-abiotic-and-biotic-surfaces-invasion-and-cytotoxicity-of-pseudomonas-aeruginosa-isolated-from-diseased-gilthead-sea-bream
#15
Faouzi Lamari, Ibtissem Chakroun, Sami Rtimi
Improper uses of antibiotics to treat fish disease pose an increase of multidrug resistance in Pseudomonas aeruginosa. In order to escape host antimicrobial agents and induce cytotoxicity, different virulence properties are needed by these bacteria such as, biofilm formation, adhesion and invasion ability. This study was conducted to isolate Pseudomonas aeruginosa from diseased cultured gilthead sea bream. Seventeen isolates of Pseudomonas aeruginosa were identified by PCR. All of the isolates tested were susceptible to Gentamicin and Ciprofloxacin...
July 1, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28694232/reinforcement-of-an-antimicrobial-stewardship-task-force-aims-at-a-better-use-of-antibiotics-of-last-resort-the-colitifos-study
#16
Benjamin Davido, Frédérique Bouchand, Aurélien Dinh, Christian Perronne, Maryvonne Villart, Olivia Senard, Jérome Salomon
BACKGROUND: Physicians are facing a worldwide increase in multidrug-resistant (MDR) organisms. Eradication of such bacteria, including so called superbugs (XDR), may cause physicians to prescribe last-resort antibiotics. However, experience with these drugs is limited and few data are available. METHODS: A before and after retrospective study was conducted from January 2008 to June 2016. Prescriptions of parenteral antimicrobials considered as last-resort antibiotics (colistin, fosfomycin, tigecycline and temocillin) were reviewed by 4 infectious disease specialists (according to microbiology results, susceptibility testing, clinical situation and alternative agents), while doses were analyzed by a pharmacist...
July 7, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28693504/prevalence-of-multi-drug-resistant-enteropathogenic-and-enteroinvasive-escherichia-coli-isolated-from-children-with-and-without-diarrhea-in-northeast-indian-population
#17
Karuppasamy Chellapandi, Tapan Kumar Dutta, Indu Sharma, Surajit De Mandal, Nachimuthu Senthil Kumar, Lalsanglura Ralte
BACKGROUND: Diarrheagenic Escherichia coli are associated with infantile diarrhea in the developing countries. The present study was conducted to determine the occurrence and antimicrobial resistance pattern of enteropathogenic and enteroinvasive E. coli associated with diarrhoea among the paediatric patients. METHODS: A total of 262 stool samples were collected from children with and without diarrhea from Mizoram, Northeast India. E. coli were isolated and subjected to multiplex PCR to detect virulent genes of EPEC (eaeA and bfpA) and EIEC (ial)...
July 11, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28689875/contribution-of-acrab-tolc-to-multidrug-resistance-in-an-escherichia-coli-sequence-type-131-isolate
#18
Sabine Schuster, Martina Vavra, Tobias Schweigger, John W A Rossen, Yasufumi Matsumura, Winfried V Kern
Drug efflux by resistance-nodulation-cell division (RND)-type transporters, such as AcrAB-TolC of Escherichia coli, is an important resistance mechanism in Gram-negative bacteria; however, its contribution to multidrug resistance (MDR) in clinical isolates is poorly defined. We inactivated acrB of a sequence type 131 E. coli human isolate that showed high-level MDR, but had no mutations within the known efflux-associated local or global regulators. The resistance profile of the acrB deletion mutant revealed significantly increased susceptibility to drugs from seven antibiotic classes, including agents usually inactive against Gram-negative bacteria, notably the new oxazolidinone, tedizolid (512-fold enhanced susceptibility)...
July 6, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28683780/bacterial-agents-and-antibiotic-resistance-profiles-of-infections-from-different-sites-that-occurred-among-patients-at-debre-markos-referral-hospital-ethiopia-a-cross-sectional-study
#19
Wondemagegn Mulu, Bayeh Abera, Mulat Yimer, Tadesse Hailu, Haimanot Ayele, Dereje Abate
BACKGROUND: In developing countries like Ethiopia, infections with antibiotic resistant bacteria become a real threat. Hence, monitoring of local level antimicrobial resistance profile is indispensable to contain the spread of drug resistant bacteria and intervene poor awareness on antimicrobial resistance. Therefore, this study aimed at determining bacterial and antibiotic resistance profiles of infections from different sites that occurred among patients. METHODS: Retrospective data recorded were analyzed on culture and drug susceptibility test results at Debre Markos Referral Hospital which were performed from 2011 to 2014...
July 6, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28681215/consequences-of-increases-in-antibiotic-resistance-pattern-on-outcome-of-pancreatic-resection-for-cancer
#20
Luca Gianotti, Nicolò Tamini, Francesca Gavazzi, Anna Mariani, Marta Sandini, Fabio Ferla, Marco Cereda, Giovanni Capretti, Stefano Di Sandro, Davide Paolo Bernasconi, Luciano De Carlis, Alessandro Zerbi
BACKGROUND: The role of drug-resistance infections on surgical outcomes is controversial. The aim of the study was to determine whether increase antibiotic resistance was an independent risk factor for development of major non-infectious postoperative complications. METHODS: This work included a multicenter cohort study of patients who underwent pancreatic resections for cancer over a 3-year interval. The primary outcome was major non-infectious complication rate developing after the occurrence of multi-drug sensitive (MDS) infection, multi-drug-resistant infection (MDR), and extensive drug-resistant (XDR) infection...
July 5, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
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