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Clostridium difficile infection

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https://www.readbyqxmd.com/read/29779082/does-obesity-influence-the-risk-of-clostridium-difficile-infection-among-patients-with-ulcerative-colitis
#1
Sajiv Chandradas, Hamed Khalili, Ashwin Ananthakrishnan, Connor Wayman, Warren Reidel, Jill Waalen, Gauree G Konijeti
BACKGROUND: Patients with ulcerative colitis (UC) are at an increased risk of Clostridium difficile infection (CDI) compared with the general population. Recent data suggest that obesity also increases the risk of CDI. AIMS: To examine whether obesity influences the risk of CDI among patients with UC. STUDY: We conducted a retrospective cross-sectional study of UC patients seen in gastroenterology clinic between January 1, 2014, and December 31, 2015...
May 19, 2018: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/29769275/-point-counterpoint-active-surveillance-for-carriers-of-toxigenic-clostridium-difficile-should-be-performed-to-guide-prevention-efforts
#2
L Clifford McDonald, Daniel J Diekema
In 2017, we published a point-counterpoint on laboratory diagnosis of C. difficile infection (CDI). At that time, Drs Ferric Fang, Christopher Polage, and Mark Wilcox discussed the strategies for diagnosing Clostridium difficile colitis in symptomatic patients. Since that manuscript new guidelines from the Infectious Diseases Society of American and the Society for Health Care Epidemiology have been published (1) and healthcare systems have begun to explore screening asymptomatic patients for C. difficile colonization...
May 16, 2018: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/29768720/bis-cyclic-guanidine-as-a-novel-class-of-compounds-potent-against-clostridium-difficile
#3
Chunhui Li, Peng Teng, Zhong Peng, Peng Sang, Xingmin Sun, Jianfeng Cai
Clostridium difficile infection (CDI) symptoms range from diarrhea to severe toxic megacolon and even death. Due to its rapid acquisition of resistance, C. difficile is listed as an urgent antibiotic-resistant threat, and has surpassed methicillin-resistant Staphylococcus aureus (MRSA) as the most common hospital-acquired infections in the USA. To combat the pathogen, the new structural class of pseudo peptides that exhibit antimicrobial activities could play an important role. Herein, we report that bis-cyclic guanidine compounds that exhibit potent antibacterial activity against C...
May 16, 2018: ChemMedChem
https://www.readbyqxmd.com/read/29760687/molecular-characterization-of-clostridium-difficil-e-isolates-in-china-from-2010-to-2015
#4
Xiao-Shu Liu, Wen-Ge Li, Wen-Zhu Zhang, Yuan Wu, Jin-Xing Lu
Clostridium difficile infection (CDI) has become a worldwide public health problem causing high mortality and a large disease burden. Molecular typing and analysis is important for surveillance and infection control of CDI. However, molecular characterization of C . difficile across China is extremely rare. Here, we report on the toxin profiles, molecular subtyping with multilocus sequence typing (MLST) and PCR ribotyping, and epidemiological characteristics of 199 C. difficile isolates collected between 2010 through 2015 from 13 participating centers across China...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29760684/bioprospecting-deep-sea-actinobacteria-for-novel-anti-infective-natural-products
#5
Dongbo Xu, Linna Han, Chunhui Li, Qi Cao, Duolong Zhu, Nolan H Barrett, Dedra Harmody, Jing Chen, Haining Zhu, Peter J McCarthy, Xingmin Sun, Guojun Wang
The global prevalence of drug resistance has created an urgent need for the discovery of novel anti-infective drugs. The major source of antibiotics in current clinical practice is terrestrial actinobacteria; the less-exploited deep-sea actinobacteria may serve as an unprecedented source of novel natural products. In this study, we evaluated 50 actinobacteria strains derived from diverse deep water sponges and environmental niches for their anti-microbial activities against a panel of pathogens including Candida albicans , Clostridium difficile , Staphylococcus aureus , and methicillin-resistant S...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29760164/%C3%A2-bezlotoxumab-for-prevention-of-recurrence-of-clostridium-difficile-infection
#6
(no author information available yet)
Clostridium difficile infection is a significant cause of infectious diarrhoea and is associated with considerable morbidity and mortality.1,2 Management of Clostridium difficile infection often requires treatment with antibiotics (metronidazole, vancomycin or fidaxomicin) alongside supportive care to manage hydration, electrolytes and nutrition. However, the risk of recurrence is approximately 20%.2 Here, we review the evidence for bezlotoxumab (▼ Zinplava - Merck Sharp & Dohme Limited), a monoclonal antibody licensed for the prevention of recurrence of Clostridium difficile in adults who are at high risk of recurrence...
May 2018: Drug and Therapeutics Bulletin
https://www.readbyqxmd.com/read/29759925/metronidazole-in-the-prevention-of-antibiotic-associated-diarrhoea-and-clostridium-difficile-infection-in-high-risk-hospitalised-patients
#7
Marco Tobar-Marcillo, Maria Guerrero-Duran, Ariana Avecillas-Segovia, Lillana Pacchiano-Aleman, Roberto Basante-Díaz, Hiram Vela-Vizcaino, Eduardo Espinosa-Aznar, Pedro Castorena García, Ricardo Santiago-Ramírez, Ixel Rivas-Bucio
BACKGROUND: In-hospital diarrhoea has a high impact on morbidity and mortality rates among hospitalised patients. Chemoprophylaxis with antibiotics in selected patients could be a cost-effective tool for prevention. METHODS: A prospective randomised, open-label study was conducted in a tertiary hospital in Mexico City, selecting patients at high risk of acquiring in-hospital diarrhoea and assigning them to a group taking metronidazole 500mg orally every eight hours for seven days or an observation group...
May 11, 2018: Gastroenterología y Hepatología
https://www.readbyqxmd.com/read/29748817/the-role-of-the-microbiome-for-human-health-from-basic-science-to-clinical-applications
#8
M Hasan Mohajeri, Robert J M Brummer, Robert A Rastall, Rinse K Weersma, Hermie J M Harmsen, Marijke Faas, Manfred Eggersdorfer
The 2017 annual symposium organized by the University Medical Center Groningen in The Netherlands focused on the role of the gut microbiome in human health and disease. Experts from academia and industry examined interactions of prebiotics, probiotics, or vitamins with the gut microbiome in health and disease, the development of the microbiome in early-life and the role of the microbiome on the gut-brain axis. The gut microbiota changes dramatically during pregnancy and intrinsic factors (such as stress), in addition to extrinsic factors (such as diet, and drugs) influence the composition and activity of the gut microbiome throughout life...
May 10, 2018: European Journal of Nutrition
https://www.readbyqxmd.com/read/29748286/structural-basis-for-recognition-of-frizzled-proteins-by-clostridium-difficile-toxin-b
#9
Peng Chen, Liang Tao, Tianyu Wang, Jie Zhang, Aina He, Kwok-Ho Lam, Zheng Liu, Xi He, Kay Perry, Min Dong, Rongsheng Jin
Clostridium difficile infection is the most common cause of antibiotic-associated diarrhea in developed countries. The major virulence factor, C. difficile toxin B (TcdB), targets colonic epithelia by binding to the frizzled (FZD) family of Wnt receptors, but how TcdB recognizes FZDs is unclear. Here, we present the crystal structure of a TcdB fragment in complex with the cysteine-rich domain of human FZD2 at 2.5-angstrom resolution, which reveals an endogenous FZD-bound fatty acid acting as a co-receptor for TcdB binding...
May 11, 2018: Science
https://www.readbyqxmd.com/read/29746938/microbial-taxonomic-and-metabolic-alterations-during-faecal-microbiota-transplantation-to-treat-clostridium-difficile-infection
#10
Lee Kellingray, Gwénaëlle Le Gall, Marianne Defernez, Ian L P Beales, Ngozi Franslem-Elumogo, Arjan Narbad
OBJECTIVES: This study aimed to examine changes to the microbiota composition and metabolic profiles of seven patients with recurrent Clostridium difficile infection (rCDI), following treatment with faecal microbiota transplant (FMT). METHODS: 16S rDNA sequencing and 1 H NMR were performed on faecal samples from the patients (pre-, post-FMT, and follow-up) and the associated donor samples. Sparse partial-least-square analysis was used to identify correlations between the two datasets...
May 7, 2018: Journal of Infection
https://www.readbyqxmd.com/read/29746725/a-phase-i-single-ascending-dose-study-in-healthy-subjects-to-assess-the-safety-tolerability-pharmacokinetics-and-pharmacodynamics-of-ds-2969b-a-novel-gyrb-inhibitor
#11
Justin Dennie, Alexander G Vandell, Satoshi Inoue, Roohi Gajee, Joseph Pav, George Zhang, Cynthia Zamora, Nobuhisa Masuda, Minoru Uchiyama, Makiko Yamada, Giorgio Senaldi
DS-2969b is a novel GyrB inhibitor in development for the treatment of Clostridium difficile infection. The aim of this study was to assess the safety, tolerability, pharmacokinetics, and effects on normal gastrointestinal microbiota groups of single daily oral ascending doses of DS-2969b in healthy subjects. The study enrolled 6 sequential ascending dose cohorts (6 mg, 20 mg, 60 mg, 200 mg, 400 mg, and 600 mg). In each cohort, 6 subjects were administered DS-2969b and 2 subjects were administered matching placebo...
May 10, 2018: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/29746574/correction-evaluation-of-bloodstream-infections-clostridium-difficile-infections-and-gut-microbiota-in-pediatric-oncology-patients
#12
Bryan T Nycz, Samuel R Dominguez, Deborah Friedman, Joanne M Hilden, Diana Ir, Charles E Robertson, Daniel N Frank
[This corrects the article DOI: 10.1371/journal.pone.0191232.].
2018: PloS One
https://www.readbyqxmd.com/read/29743839/is-clostridium-difficile-infection-a-real-threat-in-patients-with-ulcerative-colitis-a-prospective-multicenter-study-in-korea
#13
Dae Bum Kim, Kang-Moon Lee, Sang Hyoung Park, You Sun Kim, Eun Soo Kim, Jun Lee, Sung-Ae Jung, Geom Seog Seo, Ji Min Lee
Background/Aims: Clostridium difficile infection (CDI) has been reported to be a cause of flare-ups in patients with ulcerative colitis (UC). We evaluated the prevalence and clinical outcomes of CDI in patients with UC hospitalized for flare-ups. Methods: This was a prospective, multicenter study including 7 academic teaching hospitals in Korea. All consecutive patients with UC admitted for disease flare-up were enrolled. We detected the presence of CDI by using enzyme immunoassay, real-time polymerase chain reaction (RT-PCR) for toxin genes, and sigmoidoscopy...
April 2018: Intestinal Research
https://www.readbyqxmd.com/read/29743833/why-is-it-so-difficult-to-evaluate-faecal-microbiota-transplantation-as-a-treatment-for-ulcerative-colitis
#14
REVIEW
Natalie Grace Fairhurst, Simon P L Travis
Faecal microbiota transplantation (FMT) has recently re-emerged as a viable therapeutic option for colonic disorders. Its efficacy has been proved in the treatment of Clostridium difficile infection which has encouraged research into the use of FMT for other disorders involving gut dysbiosis, such as ulcerative colitis (UC), a chronic inflammatory disease characterized by relapsing and remitting colonic inflammation. Although the FMT protocol for C. difficile treatment is well established, there are numerous additional factors to consider when applying FMT to treat inflammatory diseases...
April 2018: Intestinal Research
https://www.readbyqxmd.com/read/29743303/searching-for-a-potential-algorithm-for-clostridium-difficile-testing-at-a-tertiary-care-hospital-does-toxin-enzyme-immunoassay-testing-help
#15
Angela M Theiss, Agnes Balla, Angie Ross, Denise Francis, Christina Wojewoda
Clostridium difficile is a major contributor to morbidity and mortality in the United States. Methods for identifying the organism in stool include molecular platforms, enzyme immunoassays for toxin, and culture. Controversy persists over whether molecular tests are too sensitive at identifying C. difficile and have raised questions about how additional laboratory information could inform clinical management and reduce over treatment. The aim of this study was to assess whether clinical factors were related to toxin status of patients and whether information about toxin status could potentially inform clinical management of patients...
May 9, 2018: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/29740244/prevalence-of-clostridium-difficile-in-raw-cow-sheep-and-goat-meat-in-jazan-saudi-arabia
#16
Marwah Bakri
Background:Clostridium difficile has been shown to be a nosocomial infection associated with diarrhoea and pseudomembranous colitis in hospitalized patients especially old patients. In my previous studies, it was shown the occurrence of C. difficile in animals feces and vegetables which may act as a source of infection to humans. The aim of the study was to determine the prevalence of C. difficile in retail raw cow, sheep, and goat, meat in Jazan, Saudi Arabia. Method: A total of 600 raw meat samples from cow, sheep, and goat were collected during June-December 2015, and tested for the presence of C...
May 2018: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/29739486/outcomes-associated-with-clostridium-difficile-infection-in-patients-with-chronic-liver-disease
#17
Kierra M Dotson, Samuel L Aitken, Amelia K Sofjan, Dhara N Shah, Rajender R Aparasu, Kevin W Garey
Patients with chronic liver disease (CLD) have frequent exposure to Clostridium difficile infection (CDI) risk factors but the incidence and aetiology of CDI on this population is poorly understood. The aim of this study was to assess the incidence, disease presentation and outcomes of CDI in patients with underlying CLD. The Health Care and Utilization Project National Inpatient Sample (HCUP-NIS) 2009 dataset was used to identify patients with CLD who developed CDI along with matched non-CLD patients with CDI...
May 9, 2018: Epidemiology and Infection
https://www.readbyqxmd.com/read/29738579/baicd-gene-cluster-abundance-is-negatively-correlated-with-clostridium-difficile-infection
#18
Philipp Solbach, Patrick Chhatwal, Sabrina Woltemate, Evelina Tacconelli, Michael Buhl, Markus Gerhard, Christoph K Thoeringer, Maria J G T Vehreschild, Nathalie Jazmati, Jan Rupp, Michael P Manns, Oliver Bachmann, Sebastian Suerbaum
BACKGROUND: Clostridium difficile infection (CDI) is a major cause of hospital-acquired diarrhea. Secondary bile acids were shown to confer resistance to colonization by C. difficile. 7α-dehydroxylation is a key step in transformation of primary to secondary bile acids and required genes have been located in a single bile acid-inducible (bai) operon in C. scindens as well as in C. hiranonis, two Clostridium sp. recently reported to protect against C. difficile colonization. AIM: To analyze baiCD gene abundance in C...
2018: PloS One
https://www.readbyqxmd.com/read/29733004/high-prevalence-and-frequent-acquisition-of-clostridium-difficile-ribotype-002-among-nursing-home-residents-in-hong-kong
#19
Shik Luk, Alex Yat Man Ho, Eliza Hoi Ying Chan, Iris Hoi Ling Tsang, Tak Keung Ng, Wing Kin To, Kin Wing Choi, Andrew Tin Yau Wong
OBJECTIVETo determine the incidence and risk factors associated with Clostridium difficile colonization among residents of nursing homes and to identify the ribotypes of circulating C. difficile strains.DESIGNA prospective cohort study with a follow-up duration of 22 months.SETTINGNursing homes.PARTICIPANTSOf the 375 residents in 8 nursing homes, 300 residents (80.0%) participated in the study. A further prospective study of 4 nursing homes involving 141 residents with a minimum of 90 days of follow-up was also performed...
May 7, 2018: Infection Control and Hospital Epidemiology
https://www.readbyqxmd.com/read/29730946/-adverse-effects-of-long-term-proton-pump-inhibitor-therapy-on-adults
#20
Iván Igaz, Gábor Simonyi, Sándor Balogh, Miklós Szathmári
In the last few decades, proton-pump inhibitors have become the mainstay of the treatment of acid-related disorders. Despite their efficacy, these drugs are not without risks. Recently several articles have been published on their long-term adverse effects. Among these adverse effects, the higher risk of bone fractures, the vitamin B12 and magnesium deficiencies and the higher risk of Clostridium difficile infection may be relevant. As these drugs are prescribed more and more frequently all over the world, the knowledge of the long-term adverse effects is very important not only for the specialists but for the general practitioners as well...
May 2018: Orvosi Hetilap
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