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https://www.readbyqxmd.com/read/28208858/approach-to-carbapenemase-detection-in-klebsiella-pneumoniae-in-routine-diagnostic-laboratories
#1
Rangnekar Aseem, Shalini Shenoy, Suchitra Shenoy Mala, Shrikala Baliga, Agarwal Ashish
INTRODUCTION: Resistance to Carbapenems in Klebsiella may be due to Carbapenem hydrolysing enzymes. Accurate detection of carbapenemase must be done for patient treatment and epidemiological purposes. AIM: To detect carbapenemase production by performing Modified Hodge Test (MHT), Combined Disk Test (CDT) for Metallo-β-Lactamases (MBL) and PCR for blaKPC gene, to evaluate the performance of MHT using MacConkey Agar (MCA) and to access the value of MHT for carbapenemase detection...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28208857/emergence-of-hospital-acquired-carbapenem-resistant-non-fermenters-in-teaching-institute
#2
Hariom Sharan, Neeraj Katare, Aparna Pandey, Ganesh Shivmurti Bhatambare, Trupti Bajpai
INTRODUCTION: Non-Fermenting Gram Negative Bacilli (NFGNB) are emerging now-a-days because of their tendency to colonize various surfaces and inherent resistance to commonly used disinfectants. They are responsible for multi-drug resistant hospital acquired infections. Detection of carbapenem resistance mechanisms is essential for treatment and infection control purpose as can spread to other organisms causing hospital outbreaks. AIM: To characterize non-fermenters from various clinical samples and to detect different carbapenem resistance mechanisms in meropenem resistant isolates...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28207509/relationship-between-drug-resistance-and-the-clustered-regularly-interspaced-short-palindromic-repeat-associated-protein-genes-cas1-and-cas2-in-shigella-from-giant-panda-dung
#3
Lu Ren, Lin-Hua Deng, Ri-Peng Zhang, Cheng-Dong Wang, De-Sheng Li, Li-Xin Xi, Zhen-Rong Chen, Rui Yang, Jie Huang, Yang-Ru Zeng, Hong-Lin Wu, San-Jie Cao, Rui Wu, Yong Huang, Qi-Gui Yan
BACKGROUND: To detect drug resistance in Shigella obtained from the dung of the giant panda, explore the factors leading to drug resistance in Shigella, understand the characteristics of clustered, regularly interspaced, short, palindromic repeats (CRISPR), and assess the relationship between CRISPR and drug resistance. METHODS: We collected fresh feces from 27 healthy giant pandas in the Giant Panda Conservation base (Wolong, China). We identified the strains of Shigella in the samples by using nucleotide sequence analysis...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28202116/-pathogens-of-infections-in-the-induction-period-of-childhood-acute-lymphoblastic-leukemia-and-drug-resistance-of-isolated-strains
#4
Zai-Sheng Chen, Ling Zheng, Yi-Qiao Chen, Jing-Hui Yang, Jian Li
OBJECTIVE: To investigate the infections occurring in the induction period of childhood acute lymphoblastic leukemia (ALL), the pathogens of the infections, and drug resistance of isolated strains. METHODS: A retrospective analysis was performed for the clinical data of 130 children with newly-diagnosed childhood ALL. Infections occurring during the induction chemotherapy, pathogenic strains, and drug-resistance spectrum were analyzed. RESULTS: The incidence rate of clinical infection and/or microbial infection reached 76...
February 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28198682/molecular-epidemiology-and-antimicrobial-resistance-phenotypes-of-acinetobacter-baumannii-isolated-from-patients-in-three-hospitals-in-southern-vietnam
#5
Nguyen Tuan Anh, Tran Vu Thieu Nga, Huynh Minh Tuan, Nguyen Si Tuan, Dao Minh Y, Nguyen Van Vinh Chau, Stephen Baker, Ho Huynh Thuy Duong
Multidrug resistance in the nosocomial pathogen Acinetobacter baumannii limits therapeutic options and impacts on clinical care. Resistance against carbapenems, a group of last-resort antimicrobials for treating multidrug-resistant (MDR) A. baumannii infections, is associated with the expression (and over-expression) of carbapenemases encoded by the blaOXA genes. The aim of this study was to determine the prevalence of antimicrobial-resistant A. baumannii associated with infection in three hospitals in southern Vietnam and to characterize the genetic determinants associated with resistance against carbapenems...
January 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28198411/the-secondary-resistome-of-multidrug-resistant-klebsiella-pneumoniae
#6
Bimal Jana, Amy K Cain, William T Doerrler, Christine J Boinett, Maria C Fookes, Julian Parkhill, Luca Guardabassi
Klebsiella pneumoniae causes severe lung and bloodstream infections that are difficult to treat due to multidrug resistance. We hypothesized that antimicrobial resistance can be reversed by targeting chromosomal non-essential genes that are not responsible for acquired resistance but essential for resistant bacteria under therapeutic concentrations of antimicrobials. Conditional essentiality of individual genes to antimicrobial resistance was evaluated in an epidemic multidrug-resistant clone of K. pneumoniae (ST258)...
February 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28194448/divergent-relationships-between-fecal-microbiota-and-metabolome-following-distinct-antibiotic-induced-disruptions
#7
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/28194411/antibiotic-resistance-of-campylobacter-recovered-from-faeces-and-carcasses-of-healthy-livestock
#8
Akosua B Karikari, Kwasi Obiri-Danso, Enoch H Frimpong, Karen A Krogfelt
Campylobacter is of major significance in food safety and human and veterinary medicine. This study highlighted resistance situation in the area of veterinary public health in Ghana. Using selective mCCDA agar, isolates were confirmed phenotypically on API CAMPY and genotypically by multiplex PCR of IpxA gene. The susceptibility profile of species to common and relevant antibiotics was determined by the Kirby-Bauer disk diffusion method. Cattle, sheep, goat, and pig faecal samples analysed, respectively, yielded 13...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28187754/extended-spectrum-beta-lactamase-producing-organisms-causing-urinary-tract-infections-in-sri-lanka-and-their-antibiotic-susceptibility-pattern-a-hospital-based-cross-sectional-study
#9
M M P S C Fernando, W A N V Luke, J K N D Miththinda, R D S S Wickramasinghe, B S Sebastiampillai, M P M L Gunathilake, F H D S Silva, R Premaratna
BACKGROUND: Extended Spectrum Beta- Lactamase producing organisms causing urinary tract infections (ESBL-UTI) are increasing in incidence and pose a major burden to health care. While ESBL producing Klebsiella species seem to account for most nosocomial outbreaks, ESBL-producing E. coli have been isolated from both hospitalized and non-hospitalized patients. Although 95-100% ESBL organisms are still considered sensitive to meropenem, rapid emergence of carbapenem resistance has been documented in many countries...
February 10, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28185779/corrigendum-to-comparison-of-the-clinical-efficacy-between-tigecycline-plus-extended-infusion-imipenem-and-sulbactam-plus-imipenem-against-ventilator-associated-pneumonia-with-pneumonic-extensively-drug-resistant-acinetobacter-baumannii-bacteremia-and-correlation
#10
https://www.readbyqxmd.com/read/28181665/multidrug-resistant-bacteria-among-patients-with-ventilatorassociated-pneumonia-in-an-emergency-intensive-care-unit-egypt
#11
Magda M Azzab, Rehab H El-Sokkary, Mohamed M Tawfeek, Manar G Gebriel
Ventilator-associated pneumonia (VAP) is the most common hospital-acquired infection among mechanically ventilated patients. Our objectives were to determine the incidence of VAP, isolate multidrug-resistant bacteria, identify the most prevalent resistant strains and identify their antibiotic susceptibility pattern. The VAP rate was calculated. The isolated microbes were identified and tested for antibiotic susceptibilities. The minimum inhibitory concentrations were determined of imipenem, meropenem and ertapenem for Klebsiella isolates...
February 1, 2017: Eastern Mediterranean Health Journal, la Revue de Santé de la Méditerranée Orientale
https://www.readbyqxmd.com/read/28173787/first-time-identification-of-pandoraea-sputorum-from-a-patient-with-cystic-fibrosis-in-argentina-a-case-report
#12
Pablo F Martina, Mónica Martínez, Guillermo Frada, Florencia Alvarez, Lorena Leguizamón, Claudia Prieto, Carolina Barrias, Marisa Bettiol, Antonio Lagares, Alejandra Bosch, Julián Ferreras, Martha Von Specht
BACKGROUND: Pandoraea species are considered emerging pathogens in the context of cystic fibrosis (CF) and are difficult to identify by conventional biochemical methods. These multidrug resistant bacteria remain poorly understood particularly in terms of natural resistance, mechanisms of acquired resistance and impact on the prognosis of the disease and the lung function. Among them, Pandoraea sputorum has been previously described in few cases of CF patients from Spain, Australia, France and United States, underlining the need of more clinical data for a better knowledge of its pathogenicity...
February 7, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28167543/carbapenem-minimal-inhibitory-concentrations-in-escherichia-coli-and-klebsiella-species-producing-extended-spectrum-beta-lactamases-esbls-in-critical-care-patients-from-2001-2009
#13
J Kristie Johnson, Gwen L Robinson, Lisa L Pineles, Adebola O Ajao, LiCheng Zhao, Jennifer S Albrecht, Anthony D Harris, Kerri A Thom, Jon P Furuno
Extended spectrum β-lactamase (ESBL) -producing Enterobacteriaceae are increasing in prevalence worldwide. Carbapenem antibiotics are used as a first line of therapy against ESBL-producing Enterobacteriaceae. We examined gastrointestinal colonization of carbapenem-resistant-ESBLs (CR-ESBL) among a cohort of critical care patients. In this cohort of patients, we cultured for ESBL-producing Klebsiella spp. and Escherichia coli and then performed MIC susceptibility testing for imipenem, doripenem, meropenem, and ertapenem on the patient's first isolate...
February 6, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28167307/fosfomycin-in-vitro-efficacy-against-multidrug-resistant-isolates-beyond-urinary-isolates
#14
Tulin Demir, Tuncay Buyukguclu
OBJECTIVES: Fosfomycin (FOF) is a bactericidal antimicrobial agent active against a range of Gram-negative bacteria, including multidrug-resistant (MDR) and metallo-β-lactamase (MBL)-producing Enterobacteriaceae. However, data are scarce regarding use of the drug beyond urinary tract infections (UTIs). METHODS: In this study, susceptibility rates to FOF among 290 MDR Enterobacteriaceae isolates were analysed by gradient and disk diffusion tests and the results were compared with agar dilution according to the Clinical and Laboratory Standards Institute (CLSI)...
February 3, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28158310/retrospective-and-prospective-evaluation-of-the-carbapenem-inactivation-method-for-the-detection-of-carbapenemase-producing-enterobacteriaceae
#15
Lauraine Gauthier, Remy A Bonnin, Laurent Dortet, Thierry Naas
BACKGROUND: There is an urgent need for accurate and rapid diagnostic tests to identify carbapenemase producing enterobacteria (CPE). Here, we have evaluated the Carbapenem Inactivation Method (CIM) test to detect CPEs from cultured colonies. METHODS: A total of 256 enterobacterial isolates were used to evaluate the performance of the CIM in comparison to Carba NP test and molecular detection used a reference method. Ninety three well-characterized isolates (including 29 non-CPE and 63 CPEs of worldwide origin) with decreased susceptibility to at least one carbapenem were used to (i) evaluate the efficacy of CIM test and (ii) to compare it to the Carba NP test...
2017: PloS One
https://www.readbyqxmd.com/read/28151042/occurrence-of-blandm-1-and-blandm-5-in-a-tertiary-referral-hospital-of-north-india
#16
Deepjyoti Paul, Atul Garg, Amitabha Bhattacharjee
Antimicrobial resistance poses a great challenge to clinicians leaving very limited treatment options available. A panel of carbapenem-resistant bacterial isolates was selected based on Rapidec Carba NP test from a total of 900 samples, which were collected from different specialities hospitals of Kanpur, India. Carba NP-positive isolates were screened for carbapenemases, extended-spectrum beta-lactamases (ESBLs), quinolone resistance, and 16s methyltransferase genes. Presence of diverse blaNDM (blaNDM-1 and blaNDM-5) were detected and horizontal transferability was determined by transformation and conjugation assay...
February 2, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28149515/bloodstream-infections-and-antimicrobial-sensitivity-patterns-in-a-tertiary-care-hospital-of-india
#17
Nikita Vasudeva, Prem Singh Nirwan, Preeti Shrivastava
BACKGROUND: Invasion of the bloodstream by microorganisms constitutes one of the most serious situations in infectious disease. Microorganisms present in circulating blood whether continuously, intermittently, or transiently are a threat to every organ in the body. Prevalence and antimicrobial susceptibility of microorganisms vary depending upon the geography and the use of antibiotics. METHODS: A cross-sectional study to determine the prevalent organisms causing bloodstream infection was conducted...
October 2016: Therapeutic Advances in Infectious Disease
https://www.readbyqxmd.com/read/28145953/vancomycin-and-ceftazidime-in-bone-cement-as-a-potentially-effective-treatment-for-knee-periprosthetic-joint-infection
#18
Yung-Heng Hsu, Chih-Chien Hu, Pang-Hsin Hsieh, Hsin-Nung Shih, Steve W N Ueng, Yuhan Chang
BACKGROUND: The aim of this study was to determine the optimal formulation of antibiotic-loaded bone cement for knee periprosthetic joint infection. We used both in vitro and in vivo models incorporating various broad-spectrum antibiotics and tested their efficacy against gram-positive and gram-negative bacteria. METHODS: Bone cement specimens loaded with 4 g of either vancomycin or teicoplanin and 4 g of ceftazidime, imipenem, or aztreonam were studied to measure their in vitro antibiotic release characteristics and antibacterial capacities against methicillin-susceptible Staphylococcus aureus, methicillin-resistant Staphylococcus aureus, Staphylococcus epidermidis, Pseudomonas aeruginosa, and Escherichia coli...
February 1, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28145574/drug-drug-interaction-between-valproic-acid-and-meropenem-a-retrospective-analysis-of-electronic-medical-records-from-neurosurgery-inpatients
#19
Z-P Wen, S-S Fan, C Du, T Yin, B-T Zhou, Z-F Peng, Y-Y Xie, W Zhang, Y Chen, J Xiao, X-P Chen
WHAT IS KNOWN AND OBJECTIVE: A series of studies have indicated that valproic acid (VPA) plasma concentration decreased rapidly when used concomitantly with carbapenem antibiotics, including meropenem (MEPM), imipenem and panipenem, which may increase the risk of seizure breakthrough. However, the cause for the change in VPA pharmacokinetics is unclear. A retrospective analysis of VPA therapeutic drug monitoring (TDM) records was performed to investigate this VPA pharmacokinetics drug-drug interaction...
February 1, 2017: Journal of Clinical Pharmacy and Therapeutics
https://www.readbyqxmd.com/read/28144604/evaluation-of-metallo-%C3%AE-lactamase-production-and-carriage-of-bla-vim-genes-in-pseudomonas-aeruginosa-isolated-from-burn-wound-infections-in-isfahan
#20
Mahmood Saffari, Farzaneh Firoozeh, Mohammad Pourbabaee, Mohammad Zibaei
BACKGROUND: Metallo-β-lactamase-production among Gram-negative bacteria, including Pseudomonas aeruginosa, has become a challenge for treatment of infections due to these resistant bacteria. OBJECTIVES: The aim of the current study was to evaluate the metallo-β-lactamase-production and carriage of bla-VIM genes among carbapenem-resistant P. aeruginosa isolated from burn wound infections. PATIENTS AND METHODS: A cross-sectional study was conducted from September 2014 to July 2015...
December 2016: Archives of Trauma Research
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