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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/28548573/inulin-type-fructan-degradation-capacity-of-clostridium-cluster-iv-and-xiva-butyrate-producing-colon-bacteria-and-their-associated-metabolic-outcomes
#4
F Moens, L De Vuyst
Four selected butyrate-producing colon bacterial strains belonging to Clostridium cluster IV (Butyricicoccus pullicaecorum DSM 23266(T) and Faecalibacterium prausnitzii DSM 17677(T)) and XIVa (Eubacterium hallii DSM 17630 and Eubacterium rectale CIP 105953(T)) were studied as to their capacity to degrade inulin-type fructans and concomitant metabolite production. Cultivation of these strains was performed in bottles and fermentors containing a modified medium for colon bacteria, including acetate, supplemented with either fructose, oligofructose, or inulin as the sole energy source...
May 30, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/28546796/evidence-based-approach-to-clostridium-difficile-infection
#5
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
#6
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/28546497/complete-genome-sequence-of-the-autotrophic-acetogen-clostridium-formicaceticum-dsm-92-t-using-nanopore-and-illumina-sequencing-data
#7
Michael M Karl, Anja Poehlein, Frank R Bengelsdorf, Rolf Daniel, Peter Dürre
Here, we report the closed genome sequence of Clostridium formicaceticum, an Rnf- and cytochrome-containing autotrophic acetogen that is able to convert carbon monoxide to acetate using the Wood-Ljungdahl pathway. The genome consists of a circular chromosome (4.59 Mb).
May 25, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28546483/finished-whole-genome-sequences-of-two-clostridium-botulinum-type-a-b-isolates
#8
Jessica L Halpin, Karen Hill, Shannon L Johnson, David Carlton Bruce, T Brian Shirey, Janet K Dykes, Carolina Lúquez
Clostridium botulinum secretes a potent neurotoxin that causes devastating effects when ingested, including paralysis and death if not treated. In the United States, some clinically significant strains produce toxin type A while also harboring a silent B gene. These are the first two closed genome sequences published for this subset.
May 25, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28546482/finished-whole-genome-sequence-of-clostridium-argentinense-producing-botulinum-neurotoxin-type-g
#9
Jessica L Halpin, Karen Hill, Shannon L Johnson, David Carlton Bruce, T Brian Shirey, Janet K Dykes, Carolina Lúquez
Here, we present a closed genome sequence for Clostridium argentinense strain 89G, the first strain identified to produce botulinum neurotoxin type G (BoNT/G). Although discovered in 1970, to date, there have been no reference quality sequences publicly available for this species.
May 25, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28545467/expression-of-deleted-atoxic-atypical-recombinant-beta2-toxin-in-a-baculovirus-system-and-production-of-polyclonal-and-monoclonal-antibodies
#10
Anna Serroni, Chiara Francesca Magistrali, Giovanni Pezzotti, Luca Bano, Martina Pellegrini, Giulio Severi, Chiara Di Pancrazio, Mirella Luciani, Manuela Tittarelli, Silvia Tofani, Antonio De Giuseppe
BACKGROUND: Clostridium perfringens is an important animal and human pathogen that can produce more than 16 different major and minor toxins. The beta-2 minor toxin (CPB2), comprising atypical and consensus variants, appears to be involved in both human and animal enterotoxaemia syndrome. The exact role of CPB2 in pathogenesis is poorly investigated, and its mechanism of action at the molecular level is still unknown because of the lack of specific reagents such as monoclonal antibodies against the CPB2 protein and/or the availability of a highly purified antigen...
May 25, 2017: Microbial Cell Factories
https://www.readbyqxmd.com/read/28545305/clostridium-difficile-toxins-a-and-b-receptors-pores-and-translocation-into-cells
#11
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/28545248/ephedra-treated-donor-derived-gut-microbiota-transplantation-ameliorates-high-fat-diet-induced-obesity-in-rats
#12
Jing-Hua Wang, Bong-Soo Kim, Kyungsun Han, Hojun Kim
Changes in gut microbiota (GM) are closely associated with metabolic syndrome, obesity, type 2 diabetes and so on. Several medicinal herbs, including Ephedra sinica (Es), have anti-obesity effects that ameliorate metabolic disorders. Therefore, in this study we evaluated whether Es maintains its anti-obesity effect through Es-altered gut microbiota (EsM) transplantation. GM was isolated from cecal contents of Es treated and untreated rats following repeated transplants into obese rats via oral gavage over three weeks...
May 23, 2017: International Journal of Environmental Research and Public Health
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
#13
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
#14
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/28540475/-intestinal-microbiota-in-individualized-therapies
#15
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/28540246/serious-complications-of-collagenase-clostridium-histiolyticum-injection-for-peyronie-s-disease-more-than-meets-the-eye
#16
EDITORIAL
Christopher Hobaugh, Alexander W Pastuszak
No abstract text is available yet for this article.
April 2017: Translational Andrology and Urology
https://www.readbyqxmd.com/read/28540240/collagenase-clostridium-hystolyticum-in-the-management-of-peyronie-s-disease
#17
EDITORIAL
Sun Tae Ahn, Du Geon Moon
No abstract text is available yet for this article.
April 2017: Translational Andrology and Urology
https://www.readbyqxmd.com/read/28540051/faecal-microbiota-transplantation-where-did-it-start-what-have-studies-taught-us-where-is-it-going
#18
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
#19
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/28539294/-effects-of-clostridium-butyricum-on-serum-uric-acid-and-inflammatory-mediators-in-rats-with-hyperuricemia
#20
Li Wang, Zhi-Rong Fang, Ya-Ting Shen, Yan-Bo Liu, Li-Li Liu
OBJECTIVE: To investigate the effects of intragastric administration of Clostridium butyricum in regulating serum uric acid, lipopolysaccharides (LPS), interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) in rats with hyperuricemia rats. METHODS: Forty SD rats were randomized into 4 equal groups, namely the normal control group, hyperuricemia model group, benzbromarone (3 mg/kg daily) intervention group and live Clostridium butyricum group (1.5×10(7) CFU/day)...
May 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
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