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Clostridium difficile AND PCR

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https://www.readbyqxmd.com/read/27880843/highly-divergent-clostridium-difficile-strains-isolated-from-the-environment
#1
Sandra Janezic, Mojca Potocnik, Valerija Zidaric, Maja Rupnik
Clostridium difficile is one of the most important human and animal pathogens. However, the bacterium is ubiquitous and can be isolated from various sources. Here we report the prevalence and characterization of C. difficile in less studied environmental samples, puddle water (n = 104) and soil (n = 79). C. difficile was detected in 14.4% of puddle water and in 36.7% of soil samples. Environmental strains displayed antimicrobial resistance patterns comparable to already published data of human and animal isolates...
2016: PloS One
https://www.readbyqxmd.com/read/27860531/two-clusters-of-fluoroquinolone-and-clindamycin-resistant-clostridium-difficile-pcr-ribotype-001-strain-recognized-by-capillary-electrophoresis-ribotyping-and-multilocus-variable-tandem-repeat-analysis
#2
Otakar Nyc, Renata Tejkalova, Zdenek Kriz, Filip Ruzicka, Lubos Kubicek, Jana Matejkova, Ed Kuijper, Marcela Krutova
AIM: To perform a retrospective analysis of the high occurrence of Clostridium difficile infection in the surgical department of a Czech tertiary care hospital and to identify weaknesses in C. difficile infection (CDI) prevention and control policies. METHODS: Clinical and epidemiological data on eleven CDI cases were collected. C. difficile isolates were characterized by capillary electrophoresis ribotyping, multilocus variable tandem repeat analysis (MLVA), gyrA gene fragment sequencing, and erm(B) fragment PCR amplification...
November 18, 2016: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/27856584/draft-genome-sequence-of-robinsoniella-peoriensis-6600698-a-confounder-of-clostridium-difficile-diagnosis
#3
Chrissy H Roberts, Helen Alexandra Shaw, Natalie Ferguson, Mark Holland, Brendan W Wren, Richard A Stabler
Robinsoniella peoriensis is a Gram-positive, strictly anaerobic, spore-forming, rod-shaped organism. Here, we report the draft genome of R. peoriensis 6600698, initially classified as Clostridium difficile due to growth on selective agar, a fecal gdh PCR-positive result, and clinical symptoms. R. peoriensis is a potential confounder of C. difficile diagnosis.
November 17, 2016: Genome Announcements
https://www.readbyqxmd.com/read/27852676/detection-of-clostridium-difficile-in-feces-of-asymptomatic-patients-admitted-to-the-hospital
#4
Elisabeth M Terveer, Monique J T Crobach, Ingrid M J G Sanders, Margreet C Vos, Cees M Verduin, Ed J Kuijper
Recent evidence shows that patients asymptomatically colonized with Clostridium difficile may contribute to the transmission of C. difficile in healthcare facilities. Additionally, these patients may have a higher risk of developing C. difficile infection. The aim of this study was to compare a commercially available PCR directed to both toxin A as B (artus C. difficile QS-RGQ Kit CE, QIAGEN), an Enzyme Linked Fluorescent Assay to Glutamate Dehydrogenase (GDH ELFA, VIDAS, bioMérieux), and an in-house developed PCR to TcdB, with (toxigenic) culture of C...
November 16, 2016: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/27846818/asymptomatic-and-yet-c-difficile-toxin-positive-prevalence-and-risk-factors-of-carriers-of-toxigenic-clostridium-difficile-among-geriatric-in-patients
#5
Klaus Nissle, Daniel Kopf, Alexander Rösler
BACKGROUND: Clostridium difficile infections (CDI) are the most frequent cause of diarrhoea in hospitals. Geriatric patients are more often affected by the condition, by a relapse and complications. Therefore, a crucial question is how often colonization with toxigenic Clostridium difficile strains occurs in elderly patients without diarrhoea and whether there is a "risk pattern" of colonized patients that can be defined by geriatric assessment. Furthermore, the probability for those asymptomatic carriers to develop a symptomatic infection over time has not been sufficiently explored...
November 15, 2016: BMC Geriatrics
https://www.readbyqxmd.com/read/27829823/a-new-lab-developed-real-time-pcr-assay-for-direct-detection-of-c-difficle-from-stool-sample-without-dna-extraction
#6
Brandon Li
Clostridium difficile is a major cause of nosocomial antibiotic-associated infectious diarrhea and pseudomembranous colitis. Detection of C. difficile by anaerobic bacterial culture and/or cytotoxicity assays has been largely replaced by rapid enzyme immunoassays (EIA). However, due to the lack of sensitivity of stool EIA, we developed a multiplex real-time PCR assay targeting the C. difficile toxin genes tcdB. stool samples from hospitalized pediatric patients suspected of having C. difficile-associated disease were prospectively collected...
September 2016: International Journal of Biomedical Science: IJBS
https://www.readbyqxmd.com/read/27825317/epidemiology-and-outcome-of%C3%A2-clostridium-difficile%C3%A2-infections-in-patients-hospitalized-in-internal-medicine-%C3%A2-findings-from-the-nationwide-fadoi-practice-study
#7
Giorgio Cioni, Pierluigi Viale, Stefania Frasson, Francesco Cipollini, Francesco Menichetti, Nicola Petrosillo, Sergio Brunati, Patrizia Spigaglia, Chiara Vismara, Alessandra Bielli, Fabrizio Barbanti, Giancarlo Landini, Grazia Panigada, Gualberto Gussoni, Erminio Bonizzoni, Giovanni Pietro Gesu
BACKGROUND: Clostridium difficile (CD) is a leading cause of diarrhoea among hospitalized patients. The objective of this study was to evaluate the rate, the optimal diagnostic work-up, and outcome of CD infections (CDI) in Internal Medicine (IM) wards in Italy. METHODS: PRACTICE is an observational prospective study, involving 40 IM Units and evaluating all consecutive patients hospitalized during a 4-month period. CDI were defined in case of diarrhoea when both enzyme immunoassay for GDH, and test for A/B toxin were positive...
November 8, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27806252/identification-of-factors-impacting-recurrent-clostridium-difficile-infection-and-development-of-a-risk-evaluation-tool
#8
Bethanne P Carpenter, Erin K Hennessey, Alex M Bryant, Jad A Khoury, Andrew J Crannage
Recurrent Clostridium difficile infection (RCDI) is a growing concern, yet limited data exists to clarify which patients are at highest risk.  Identification of these patients may better inform decisions of those who may benefit from prophylactic intervention. The purpose of this study was to determine which factors are associated with the recurrence of Clostridium difficile infection (CDI) and to develop a risk stratification tool.  Methods. Patients readmitted within 10 weeks of positive C. difficile polymerase chain reaction (PCR) with symptoms were included in this retrospective case control study...
July 2016: Journal of Pharmacy & Pharmaceutical Sciences: a Publication of the Canadian Society for Pharmaceutical Sciences
https://www.readbyqxmd.com/read/27799923/molecular-epidemiology-and-antimicrobial-susceptibility-of-clostridium-difficile-isolates-from-a-university-teaching-hospital-in-china
#9
Jing-Wei Cheng, Meng Xiao, Timothy Kudinha, Fanrong Kong, Zhi-Peng Xu, Lin-Ying Sun, Li Zhang, Xin Fan, Xiu-Li Xie, Ying-Chun Xu
While the developed world has seen a significant increase in the number of scientific articles on Clostridium difficile infection (CDI), the developing world still lags behind on this subject due to limited laboratory capacity, low awareness, and limited surveillance of this problem. As such, CDI is considered a neglected but potentially huge problem in developing countries. The major aim of this study was to systemically evaluate the utility of several molecular typing tools for CDI, including their relevance in epidemiological studies in developing countries such as China...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27793509/toxin-profiles-pcr-ribotypes-and-resistance-patterns-of-clostridium-difficile-a-multicentre-study-in-china-2012-2013
#10
Qiong Gao, Shi Wu, Haihui Huang, Yuxing Ni, Ye Chen, Yunjian Hu, Yunsong Yu
A total of 178 clinical isolates of Clostridium difficile were collected from five major teaching hospitals representing northern, eastern and southern China from August 2012 to July 2013. Among the 178 isolates, 162 (91.0%) were toxigenic, including 66 (40.7%) toxin A-negative, toxin B-positive, 95 (58.6%) toxin A-positive, toxin B-positive and only 1 (0.6%) toxin A-, toxin B- and binary toxin-positive. Twenty-nine different PCR ribotypes were identified, of which 017 (21.0%), 012 (17.3%) and novel type H (16...
October 17, 2016: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/27785569/-clostridium-difficile-infections-in-geriatric-patients
#11
R Simmerlein, A Basta, M Gosch
Clostridium difficile is the main cause of nosocomial antibiotic-associated diarrhea in adults in Europe and North America. Infections with C. difficile typically occur in elderly patients with comorbidities and prior antibiotic therapy. Other risk factors are proton pump inhibitors, which are taken by many elderly patients. The main virulence factors are toxins A and B. The clinical spectrum ranges from asymptomatic colonization to severe disease with abdominal complications and sepsis. The current diagnostic gold standard is anaerobic culture but is impractical in routine use due to the long duration...
October 26, 2016: Zeitschrift Für Gerontologie und Geriatrie
https://www.readbyqxmd.com/read/27770538/rapid-identification-of-the-etiological-factors-causing-diarrheal-diseases
#12
G Kamkamidze, I Migriauli, D Razmadze, M Kochlamazashvili, K Mulkijanyan, M Butsashvili
The main objective of this investigation was to develop and pilot a real-time Polymerase Chain Reaction (rt-PCR) diagnostic system for rapid and simultaneous identification of pathogens with a particular emphasis on diarrheal disease diagnostics. The diarrheal diseases were selected as a target for the pilot because they constitute a primary public health priority in Georgia and worldwide. The product developed by our research team "Neo_PCR_Diagnostics" represents an original system for the identification of pathogens associated with gastrointestinal tract infections and diarrhea...
September 2016: Georgian Medical News
https://www.readbyqxmd.com/read/27751937/distribution-of-clostridium-difficile-pcr-ribotypes-and-high-proportion-of-027-and-176-in-some-hospitals-in-four-south-eastern-european-countries
#13
Maja Rupnik, Arjana Tambic Andrasevic, Elena Trajkovska Dokic, Ivanka Matas, Milica Jovanovic, Selma Pasic, Aleksander Kocuvan, Sandra Janezic
While Clostridium difficile epidemiology is well documented in many European countries, data are largely missing for South Eastern European region. Here we report the PCR ribotype distribution of 249 C. difficile isolates received for typing from six hospital settings from Croatia, Bosnia and Herzegovina, Republic of Macedonia and Serbia in time period from 2008 to 2015. Twenty-four PCR ribotypes were detected. The majority of strains from Bosnia and Herzegovina and Serbia belonged to PCR ribotype 027 (65...
October 15, 2016: Anaerobe
https://www.readbyqxmd.com/read/27744367/clostridium-difficile-environmental-contamination-within-a-clinical-laundry-facility-in-the-usa
#14
Karen Michael, David No, Jennifer Dankoff, Kyoyi Lee, Elisabeth Lara-Crawford, Marilyn C Roberts
Clostridium difficile is both a hospital and community acquired pathogen. The current study determined if C. difficile could be cultured from clinical laundry facility surfaces. A total of 240 surface samples were collected from dirty areas (n = 120), which handle soiled clinical linens, and from clean areas (n = 120), which process and fold the clean linens, within the University of Washington Consolidated Laundry facility in 2015. Sampling was done four times over the course of one year. The dirty area was significantly more contaminated than the clean area (21% vs 2%, p<0...
October 14, 2016: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/27730251/clinical-use-comparison-of-a-semiautomated-pcr-with-fluorescent-ribotyping-for-typing-of-clostridium-difficile
#15
Abrar K Thabit, M Jahangir Alam, Carey-Ann D Burnham, David P Nicolau
Molecular typing of Clostridium difficile is performed to assess strain relatedness or place strains within an epidemiological context. Different C. difficile ribotyping systems are available. However, a common strain library does not exist. We aimed to compare ribotyping results of 29 clinical C. difficile isolates by two methods: semiautomated PCR-ribotyping and fluorescent PCR-ribotyping. For certain ribotypes (n = 16/29; 55.2 %), the inter-laboratory reproducibility was consistent among multiple samples from individual subjects, while 54...
October 11, 2016: Archives of Microbiology
https://www.readbyqxmd.com/read/27725230/characterization-of-clostridium-difficile-pcr-ribotype-018-a-problematic-emerging-type
#16
Fabrizio Barbanti, Patrizia Spigaglia
Recent surveys indicate that the majority of toxigenic Clostridium difficile strains isolated in European hospitals belonged to PCR-ribotypes (RTs) different from RT 027 or RT 078. Among these types, RT 018 has been reported in Italy and, more recently, in Korea and Japan. In Italy, strains RT 018 have become predominant in the early 2000s, whereas the majority of strains isolated before were RT 126, a type belonging to the same lineage as the RT 078. In this study, we have found that Italian strains RT 018 are resistant to erythromycin, clindamycin, moxifloxacin and rifampicin...
October 7, 2016: Anaerobe
https://www.readbyqxmd.com/read/27716140/longitudinal-survey-of-clostridium-difficile-presence-and-gut-microbiota-composition-in-a-belgian-nursing-home
#17
Cristina Rodriguez, Bernard Taminiau, Nicolas Korsak, Véronique Avesani, Johan Van Broeck, Philippe Brach, Michel Delmée, Georges Daube
BACKGROUND: Increasing age, several co-morbidities, environmental contamination, antibiotic exposure and other intestinal perturbations appear to be the greatest risk factors for C. difficile infection (CDI). Therefore, elderly care home residents are considered particularly vulnerable to the infection. The main objective of this study was to evaluate and follow the prevalence of C. difficile in 23 elderly care home residents weekly during a 4-month period. A C. difficile microbiological detection scheme was performed along with an overall microbial biodiversity study of the faeces content by 16S rRNA gene analysis...
October 1, 2016: BMC Microbiology
https://www.readbyqxmd.com/read/27693543/clostridium-difficile-a-rare-cause-of-pyogenic-liver-abscess
#18
Nurver Ulger Toprak, Gulcin Balkose, Deniz Durak, Ender Dulundu, Tolga Demirbaş, Cumhur Yegen, Guner Soyletir
Extra-intestinal infections due to Clostridium difficile have been reported rarely. Herein we report a case of pyogenic liver abscess from toxigenic C. difficile in an 80-year-old non-hospitalized woman with diabetes mellitus, cerebrovascular and cardiovascular diseases. The patient was admitted to the emergency department with fever and abdominal pain. There was no history of diarrhea or use of antibiotics. Laboratory parameters revealed signs of inflammation and elevated AST and ALT levels. Abdominal ultrasound and computer tomography showed multiple focal lesions in the bilateral liver lobes and hydropic gallbladder with stones...
September 28, 2016: Anaerobe
https://www.readbyqxmd.com/read/27685937/chemokine-cxcl13-expression-was-up-regulated-in-clostridium-difficile-infection
#19
Lifang Wang, Ju Cao, Congya Li, Liping Zhang
Clostridium difficile infection (CDI) is the leading cause of antibiotic- and healthcare-associated diarrhea. CXCL13 is a well-known CXC chemokine involved in inflammation, but its role in CDI remains unknown. In this study, serum and fecal samplings were collected from 51 CDI patients, 50 diarrhea patients without CDI and 50 healthy control subjects to determine the CXCL13 levels by enzyme-linked immunosorbent assay (ELISA). Besides, a mouse model of C. difficile infection was established, and murine serum and colon tissues were collected for detection of CXCL13 expression using quantitative real-time RT-PCR, ELISA, Western blot, or immunohistochemistry...
December 2016: Cytokine
https://www.readbyqxmd.com/read/27651167/clostridium-difficile-infection-diagnostics-evaluation-of-the-c-diff-quik-chek-complete-assay-a-rapid-enzyme-immunoassay-for-detection-of-toxigenic-c-difficile-in-clinical-stool-samples
#20
Karin Johansson, Hanna Karlsson, Torbjörn Norén
Diagnostic testing for Clostridium difficile infection (CDI) has, in recent years, seen the introduction of rapid dual-EIA (enzyme immunoassay) tests combining species-specific glutamate dehydrogenase (GDH) with toxin A/B. In a prospective study, we compared the C. DIFF Quik Chek Complete test to a combination of selective culture (SC) and loop-mediated isothermal amplification (LAMP) of the toxin A gene. Of 419 specimens, 68 were positive in SC including 62 positive in LAMP (14.7%). The combined EIA yielded 82 GDH positives of which 47 were confirmed toxin A/B positive (11%) corresponding to a sensitivity and specificity of 94% for GDH EIA compared to SC and for toxin A/B EIA a sensitivity of 71% and a specificity of 99% compared to LAMP...
November 2016: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
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