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https://www.readbyqxmd.com/read/28549882/trends-in-the-use-of-laboratory-tests-for-the-diagnosis-of-clostridium-difficile-infection-and-association-with-incidence-rates-in-quebec-canada-2010-2014
#1
C Bogaty, S Lévesque, C Garenc, C Frenette, D Bolduc, L-A Galarneau, C Lalancette, V Loo, C Tremblay, M Trudeau, J Vachon, M Dionne, J Villeneuve, J Longtin, Y Longtin
BACKGROUND: Several Clostridium difficile infection (CDI) surveillance programs do not specify laboratory strategies to use. We investigated the evolution in testing strategies used across Quebec, Canada, and its association with incidence rates. METHODS: Cross-sectional study of 95 hospitals by surveys conducted in 2010 and in 2013-2014. The association between testing strategies and institutional CDI incidence rates was analyzed via multivariate Poisson regressions...
May 23, 2017: American Journal of Infection Control
https://www.readbyqxmd.com/read/28549779/investigation-of-community-carriage-rates-of-clostridium-difficile-and-hungatella-hathewayi-in-healthy-volunteers-from-four-regions-of-england
#2
S E Manzoor, C A M McNulty, D Nakiboneka-Ssenabulya, D M Lecky, K J Hardy, P M Hawkey
Faecal samples from 1365 healthy asymptomatic volunteers from four regions in England were screened for the presence of Clostridium difficile between December 2013 and July 2014. The carriage rate of C. difficile in healthy patients was 0.5%, which is lower than previously reported. This study demonstrates that the true community reservoir of C. difficile in the healthy UK population is very low and is, therefore, unlikely to be a reservoir for infections diagnosed in the hospital setting.
May 23, 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/28548838/synthesis-of-defined-and-functionalized-glycans-of-lipoteichoic-acid-a-cell-surface-polysaccharide-from-clostridium-difficile
#3
Kang Yu, Ningning Bi, Chenghe Xiong, Shuihong Cai, Zhongzhu Long, Zhongwu Guo, Guofeng Gu
Two structurally defined, functionalized glycans of lipoteichoic acid (LTA, also known as PS-III) from C. difficile, which have one or two repeating units of LTA linked to the core trisaccharide, were efficiently synthesized via a convergent [2 + 3] or [2 + 2 + 3] strategy. The α-linkage of both N-acetylglucosamine residues in the repeating unit were constructed with glycosyl imidates of azidosugars as donors, while the phosphodiester bridges between the oligosaccharides were fashioned using H-phosphonate chemistry...
May 26, 2017: Organic Letters
https://www.readbyqxmd.com/read/28546796/evidence-based-approach-to-clostridium-difficile-infection
#4
Stuart Johnson
No abstract text is available yet for this article.
April 2017: Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28546791/fecal-microbiota-transplantation-from-clostridium-difficile-to-inflammatory-bowel-disease
#5
Robert J Gianotti, Alan C Moss
Fecal microbiota transplantation (FMT) has evolved from a case report in the medical literature to the basis of major innovations in the treatment of Clostridium difficile infection (CDI) and, potentially, inflammatory bowel disease (IBD). In the clinical setting, FMT was noted to significantly lower the risk of recurrent CDI, likely by increasing microbial diversity and altering the metabolic environment in the intestinal tract of recipients. In parallel, advances in the ability to quantify and characterize microbial communities in fecal samples led to the association of IBD with a state of intestinal dysbiosis...
April 2017: Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28545305/clostridium-difficile-toxins-a-and-b-receptors-pores-and-translocation-into-cells
#6
Kathleen E Orrell, Zhifen Zhang, Seiji N Sugiman-Marangos, Roman A Melnyk
The most potent toxins secreted by pathogenic bacteria contain enzymatic moieties that must reach the cytosol of target cells to exert their full toxicity. Toxins such as anthrax, diphtheria, and botulinum toxin all use three well-defined functional domains to intoxicate cells: a receptor-binding moiety that triggers endocytosis into acidified vesicles by binding to a specific host-cell receptor, a translocation domain that forms pores across the endosomal membrane in response to acidic pH, and an enzyme that translocates through these pores to catalytically inactivate an essential host cytosolic substrate...
May 26, 2017: Critical Reviews in Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28544102/a-multicenter-retrospective-case-cohort-study-of-the-epidemiology-and-risk-factors-for-clostridium-difficile-infection-among-cord-blood-transplant-recipients
#7
Carolyn D Alonso, David A Braun, Ishan Patel, Mona Akbari, Daniel Jungmyung Oh, Tomi Jun, Malgorzata McMasters, Sarah P Hammond, Brett Glotzbecker, Corey Cutler, Daniel Leffler, Karen K Ballen, Ciarán P Kelly
BACKGROUND: Clostridium difficile infection (CDI) is the leading cause of health-care associated infectious diarrhea. The aim of this study was to evaluate the epidemiology and risk factors for CDI in the 100 days following umbilical cord blood transplantation (UCBT) at three Boston hospitals. METHODS: We performed a multicenter, retrospective, case-cohort study of 226 UCBT recipients at Beth Israel Deaconess Medical Center, Massachusetts General Hospital, and Dana Farber/Brigham and Women's Cancer Center from 2003-2012...
May 24, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/28542111/clostridium-difficile-infection-in-solid-organ-transplant-recipients
#8
Deepa Nanayakkara, Neha Nanda
PURPOSE OF REVIEW: Clostridium difficile infection (CDI) is a major healthcare-associated infection that causes significant morbidity and an economic impact in the United States. In this review, we provide an overview of Clostridium difficile infection in solid organ transplant recipients with an emphasis on recent literature. RECENT FINDINGS: C. difficile in solid organ transplant population has unique risk factors. Fecal microbiota transplantation has shown favorable results in treatment of recurrent C...
May 24, 2017: Current Opinion in Organ Transplantation
https://www.readbyqxmd.com/read/28541799/limited-engraftment-of-donor-microbiome-via-one-time-fecal-microbial-transplantation-in-treated-hiv-infected-individuals
#9
Ivan Vujkovic-Cvijin, Rachel L Rutishauser, Montha Pao, Peter W Hunt, Susan V Lynch, Joseph M McCune, Ma Somsouk
BACKGROUND: Many HIV-infected individuals on antiretroviral therapy (ART) exhibit persistent systemic inflammation, which predicts morbidity and mortality. ART-treated subjects concurrently exhibit marked compositional alterations in the gut bacterial microbiota and the degree of dysbiosis correlates with systemic inflammation. Whether interventions to modulate the microbiome can affect systemic inflammation is unknown. METHODS: An open-label fecal microbial transplantation (FMT) was delivered by colonoscopy to asymptomatic HIV-infected ART-suppressed individuals without antibiotic pre-treatment...
May 25, 2017: Gut Microbes
https://www.readbyqxmd.com/read/28540475/-intestinal-microbiota-in-individualized-therapies
#10
REVIEW
T Witte, D H Pieper, B Heidrich
During recent years, the analysis of the human microbiota has been receiving more and more scientific focus. Deep sequencing analysis enables characterization of microbial communities in different environments without the need of culture-based methods. Hereby, information about microbial communities is increasing enormously. Numerous studies in humans and animal models revealed the important role of the microbiome in emergence and natural course of diseases such as autoimmune diseases and metabolic disorders, e...
May 24, 2017: Der Internist
https://www.readbyqxmd.com/read/28540051/faecal-microbiota-transplantation-where-did-it-start-what-have-studies-taught-us-where-is-it-going
#11
REVIEW
Ryan M Chanyi, Laura Craven, Brandon Harvey, Gregor Reid, Michael J Silverman, Jeremy P Burton
The composition and activity of microorganisms in the gut, the microbiome, is emerging as an important factor to consider with regard to the treatment of many diseases. Dysbiosis of the normal community has been implicated in inflammatory bowel disease, Crohn's disease, diabetes and, most notoriously, Clostridium difficile infection. In Canada, the leading treatment strategy for recalcitrant C. difficile infection is to receive faecal material which by nature is filled with microorganisms and their metabolites, from a healthy individual, known as a faecal microbiota transplantation...
2017: SAGE Open Medicine
https://www.readbyqxmd.com/read/28539351/bacteriophage-transfer-during-faecal-microbiota-transplantation-in-clostridium-difficile-infection-is-associated-with-treatment-outcome
#12
Tao Zuo, Sunny H Wong, Kelvin Lam, Rashid Lui, Kitty Cheung, Whitney Tang, Jessica Y L Ching, Paul K S Chan, Martin C W Chan, Justin C Y Wu, Francis K L Chan, Jun Yu, Joseph J Y Sung, Siew C Ng
OBJECTIVE: Faecal microbiota transplantation (FMT) is effective for the treatment of recurrent Clostridium difficile infection (CDI). Studies have shown bacterial colonisation after FMT, but data on viral alterations in CDI are scarce. We investigated enteric virome alterations in CDI and the association between viral transfer and clinical outcome in patients with CDI. DESIGN: Ultra-deep metagenomic sequencing of virus-like particle preparations and bacterial 16S rRNA sequencing were performed on stool samples from 24 subjects with CDI and 20 healthy controls...
May 24, 2017: Gut
https://www.readbyqxmd.com/read/28538648/less-is-more-antibiotic-duration-and-outcomes-in-fournier-s-gangrene
#13
Margaret Lauerman, Olga Kolesnik, Kinjal Sethuraman, Ronald Rabinowitz, Manjari Joshi, Emily Clark, Deborah Stein, Thomas Scalea, Sharon Henry
BACKGROUND: Antibiotic management of Fournier's gangrene (FG) is without evidence-based guidelines, and is based on expert opinion. The effect of duration of antibiotic therapy on outcomes in FG is unknown. METHODS: A retrospective review was performed of FG patients from 2012-2015 at a single institution. Patients were managed by our institutional practice of complete primary wound closure as possible, with antibiotic duration according to physician judgement. Patients were stratified into multiple durations of antibiotic administration...
May 22, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28538249/norovirus-and-clostridium-difficile-outbreaks-squelching-the-wildfire
#14
Ann Fisher, Louise M Dembry
PURPOSE OF REVIEW: Gastrointestinal outbreaks in the healthcare setting cause increased morbidity and mortality in an already vulnerable population. Optimization of infection prevention measures can be a challenge in healthcare settings. This review describes new literature that may change the traditional infection prevention approach to such outbreaks. RECENT FINDINGS: Asymptomatic carriers of both norovirus and Clostridium difficile can pose risk of transmission to others and the environment...
May 22, 2017: Current Opinion in Infectious Diseases
https://www.readbyqxmd.com/read/28536258/erratum-for-hong-et-al-mucosal-antibodies-to-the-c-terminus-of-toxin-a-prevent-colonization-of-clostridium-difficile
#15
Huynh A Hong, Krisztina Hitri, Siamand Hosseini, Natalia Kotowicz, Donna Bryan, Fatma Mawas, Anthony J Wilkinson, Annie van Broekhoven, Jonathan Kearsey, Simon M Cutting
No abstract text is available yet for this article.
June 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28536228/clostridium-difficile-extraintestinal-abscess-a-rare-complication
#16
Vamsi Krishna Kantamaneni, Krishna C Gurram, Abhijit Kulkarni
Extraintestinal Clostridium difficile is rare. A 74-year-old man with a history of ulcerative colitis presented after a fall. Trauma work-up showed liver cirrhosis. Two days later he developed abdominal pain, distension, diarrhoea and leucocytosis. Stool tested positive for C. difficile CT abdomen showed pancolitis with toxic megacolon. Total abdominal colectomy and ileostomy with a rectal stump was performed. He was discharged, but was readmitted with sepsis. CT abdomen showed a 10.4×7.2 cm fluid collection in the pelvis...
May 22, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28536162/correction-for-cairns-et-al-comparative-genome-analysis-and-global-phylogeny-of-the-toxin-variant-clostridium-difficile-pcr-ribotype-017-reveals-the-evolution-of-two-independent-sublineages
#17
M D Cairns, M D Preston, C L Hall, D N Gerding, P M Hawkey, H Kato, H Kim, E J Kuijper, T D Lawley, H Pituch, S Reid, B Kullin, T V Riley, K Solomon, P J Tsai, J S Weese, R A Stabler, B W Wren
No abstract text is available yet for this article.
June 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28533127/primary-human-polarized-small-intestinal-epithelial-barriers-respond-differently-to-a-hazardous-and-an-innocuous-protein
#18
A D Eaton, C Zimmermann, B Delaney, B P Hurley
An experimental platform employing human derived intestinal epithelial cell (IEC) line monolayers grown on permeable Transwell(®) filters was previously investigated to differentiate between hazardous and innocuous proteins. This approach was effective at distinguishing these types of proteins and perturbation of monolayer integrity, particularly transepithelial electrical resistance (TEER), was the most sensitive indicator. In the current report, in vitro indicators of monolayer integrity, cytotoxicity, and inflammation were evaluated using primary (non-transformed) human polarized small intestinal epithelial barriers cultured on Transwell(®) filters to compare effects of a hazardous protein (Clostridium difficile Toxin A [ToxA]) and an innocuous protein (bovine serum albumin [BSA])...
May 19, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28533000/clinical-immunological-and-microbiological-predictors-of-poor-outcome-in-clostridium-difficile-infection
#19
E Reigadas, L Alcalá, M Marín, A Martín, E Bouza
BACKGROUND: Clostridium difficile infection (CDI) causes increased morbidity and mortality. Clinical data cannot clearly predict poor CDI outcome. Data on the value of microbiological predictors is scarce. OBJECTIVE: To identify early predictors of poor outcome of CDI. METHODS: We prospectively included patients with CDI aged >2years. Clinical, immunological (Toxin B IgG/Ig A and Toxin A IgG/Ig A), microbiological factors (bacterial load, toxin quantification, sporulation, germination, and metronidazole susceptibility) were evaluated to identify early independent predictors of poor outcome...
May 11, 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/28531908/methods-and-reporting-studies-assessing-fecal-microbiota-transplantation-a-systematic-review
#20
Aïda Bafeta, Amelie Yavchitz, Carolina Riveros, Rui Batista, Philippe Ravaud
Background: Fecal microbiota transplantation (FMT) could be a novel treatment option for several chronic diseases associated with altered gut microbiota. Purpose: To examine the conduct and reporting of studies assessing FMT. Data Sources: Cochrane Central Register of Controlled Trials, PubMed, EMBASE, and Web of Science from inception to 31 January 2017. Study Selection: Two reviewers independently examined titles and abstracts to identify all English-language reports of human clinical studies assessing the safety or efficacy of FMT...
May 23, 2017: Annals of Internal Medicine
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