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https://www.readbyqxmd.com/read/28919674/prevalence-of-enteropathogens-and-their-antibiotic-sensitivity-pattern-in-puppies-with-hemorrhagic-gastroenteritis
#1
A Kokila Priya, M Balagangatharathilagar, D Chandrasekaran, M Parthiban, S Prathaban
AIM: Hemorrhagic gastroenteritis (HGE) ranging from mild to severe forms is commonly encountered in puppies. The aim of the study was to identify the prevalence of common enteropathogens and the antibiotic sensitivity pattern in puppies reported with HGE. MATERIALS AND METHODS: The canine HGE activity index, with little modification, was adopted to identify Grade III/severely affected puppies below 6 months of age. Fecal polymerase chain reaction (PCR) assay was employed to screen and compare the enteropathogens in puppies with hemorrhagic diarrhea and healthy control...
August 2017: Veterinary World
https://www.readbyqxmd.com/read/28914275/national-trends-2007-2013-of-clostridium-difficile-infection-in-patients-with-septic-shock-impact-on-outcome
#2
Kshitij Chatterjee, Abhinav Goyal, Aditya Chada, Krishna Siva Kakkera, Howard L Corwin
BACKGROUND: Clostridium difficile is the most common infectious cause of healthcare-associated diarrhea and is associated with worse outcomes and higher cost. Patients with septic shock (SS) are at increased risk of acquiring C. difficile infections (CDIs) during hospitalization, but little data are available on CDI complicating SS. OBJECTIVE: Prevalence of CDI in SS between 2007-2013 and impact of CDI on outcomes in SS. METHODS: Outcomes were prevalence of CDI in SS, effect on mortality, length of stay (LOS), and 30-day readmission...
September 2017: Journal of Hospital Medicine: An Official Publication of the Society of Hospital Medicine
https://www.readbyqxmd.com/read/28902923/molecular-microbiological-and-clinical-characterization-of-clostridium-difficile-isolates-from-tertiary-care-hospitals-in-colombia
#3
Clara Lina Salazar, Catalina Reyes, Santiago Atehortua, Patricia Sierra, Margarita María Correa, Daniel Paredes-Sabja, Emma Best, Warren N Fawley, Mark Wilcox, Ángel González
In Colombia, the epidemiology and circulating genotypes of Clostridium difficile have not yet been described. Therefore, we molecularly characterized clinical isolates of C.difficile from patients with suspicion of C.difficile infection (CDI) in three tertiary care hospitals. C.difficile was isolated from stool samples by culture, the presence of A/B toxins were detected by enzyme immunoassay, cytotoxicity was tested by cell culture and the antimicrobial susceptibility determined. After DNA extraction, tcdA, tcdB and binary toxin (CDTa/CDTb) genes were detected by PCR, and PCR-ribotyping performed...
2017: PloS One
https://www.readbyqxmd.com/read/28899198/adaptive-immune-constraints-on-c-difficile-vaccination
#4
Mark L Lang, Binu Shrestha
No abstract text is available yet for this article.
September 13, 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28893366/fidaxomicin-reduces-early-toxin-a-and-b-production-and-sporulation-in-clostridium-difficilein-vitro
#5
Michael J Aldape, Aaron E Packham, Dustin D Heeney, Savannah N Rice, Amy E Bryant, Dennis L Stevens
PURPOSE: Fidaxomicin, a macrocyclic antibiotic, has been approved for the treatment of Clostridium difficile infection (CDI). Previous work by our group has demonstrated that some antibiotics at sub-inhibitory concentrations stimulate early toxin production and sporulation by C. difficile. Prior studies revealed that fidaxomicin, when added to late stationary-phase organisms, reduced exotoxin production and spore formation by C. difficile. However, the ability of fidaxomicin to trigger early virulence factor production and spore formation has never been investigated...
September 12, 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28891459/prevalence-of-clostridium-difficile-infection-and-colonization-in-a-tertiary-hospital-and-elderly-community-of-north-eastern-peninsular-malaysia
#6
N H Zainul, Z F Ma, A Besari, H Siti Asma, R A Rahman, D A Collins, N Hamid, T V Riley, Y Y Lee
Little is known about Clostridium difficile infection (CDI) in Asia. The aims of our study were to explore (i) the prevalence, risk factors and molecular epidemiology of CDI and colonization in a tertiary academic hospital in North-Eastern Peninsular Malaysia; (ii) the rate of carriage of C. difficile among the elderly in the region; (iii) the awareness level of this infection among the hospital staffs and students. For stool samples collected from hospital inpatients with diarrhea (n = 76) and healthy community members (n = 138), C...
September 11, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28889309/identification-of-c-di-gmp-responsive-riboswitches
#7
Johann Peltier, Olga Soutourina
Bis-(3'-5')-cyclic dimeric guanosine monophosphate (c-di-GMP) is an important signaling molecule for community behavior control, cell morphogenesis, and virulence in bacteria. In addition to protein effectors, this second messenger binds RNA molecules that act as riboswitches to control target gene expression. In this chapter, we describe a method for experimental validation of the functionality of c-di-GMP-responsive riboswitches and the analysis of c-di-GMP control of target gene expression by qRT-PCR and Northern blot...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28882583/clinical-and-epidemiological-characteristics-in-hospitalized-young-children-with-acute-gastroenteritis-in-southern-taiwan-according-to-major-pathogens
#8
Ning Chung, Shih-Min Wang, Ching-Fen Shen, Fu-Chun Kuo, Tzong-Shiann Ho, Chao Agnes Hsiung, Jung-Jung Mu, Fang-Tzy Wu, Li-Min Huang, Yi-Chuan Huang, Yhu-Chering Huang, Hsin Chi, Hsiao-Chuan Lin, Ching-Chuan Liu
BACKGROUND: Acute gastroenteritis (AGE) can be caused by a wide array of pathogens, including bacteria, viruses, and parasites. A prospective study to investigate the epidemiology and clinical presentation in young children hospitalized with AGE was conducted in a medical center in southern Taiwan. METHODS: Patients aged less than 5 years who was hospitalized due to AGE in National Cheng Kung University Hospital were enrolled from July 2014 to June 2016. The demographic information, clinical features and laboratory data were collected by chart reviews, and stool samples were sent to Centers of Disease Control, Taiwan (Taiwan CDC) for a panel of pathogen identification consisting of two viruses, nine bacteria, and five parasites...
August 31, 2017: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/28878013/new-class-of-precision-antimicrobials-redefines-role-of-clostridium-difficile-s-layer-in-virulence-and-viability
#9
Joseph A Kirk, Dana Gebhart, Anthony M Buckley, Stephen Lok, Dean Scholl, Gillian R Douce, Gregory R Govoni, Robert P Fagan
There is a medical need for antibacterial agents that do not damage the resident gut microbiota or promote the spread of antibiotic resistance. We recently described a prototypic precision bactericidal agent, Av-CD291.2, which selectively kills specific Clostridium difficile strains and prevents them from colonizing mice. We have since selected two Av-CD291.2-resistant mutants that have a surface (S)-layer-null phenotype due to distinct point mutations in the slpA gene. Using newly identified bacteriophage receptor binding proteins for targeting, we constructed a panel of Avidocin-CDs that kills diverse C...
September 6, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28874406/revisiting-the-role-of-csp-family-proteins-in-regulating-clostridium-difficile-spore-germination
#10
Yuzo Kevorkian, Aimee Shen
Clostridium difficile causes considerable healthcare-associated gastrointestinal disease that is transmitted by its metabolically dormant spore form. Upon entering the gut, C. difficile spores germinate and outgrow to produce vegetative cells that release disease-causing toxins. C. difficile spore germination depends on the Csp family of (pseudo)proteases and the cortex hydrolase, SleC. The CspC pseudoprotease functions as a bile salt germinant receptor that activates the protease CspB, which in turn proteolytically activates SleC zymogen...
September 5, 2017: Journal of Bacteriology
https://www.readbyqxmd.com/read/28870746/incidence-risk-factors-and-impact-of-clostridium-difficile-colitis-following-primary-total-hip-and-knee-arthroplasty
#11
Patawut Bovonratwet, Daniel D Bohl, Rohil Malpani, Denis Nam, Craig J Della Valle, Jonathan N Grauer
BACKGROUND: An improved understanding of Clostridium difficile is important as it is used as a measure of hospital quality and is associated with substantial morbidity. This study utilizes the National Surgical Quality Improvement Program to determine the incidence, timing, risk factors, and clinical implications of C difficile colitis in patients undergoing primary total hip or knee arthroplasty (THA or TKA). METHODS: Patients who underwent primary THA or TKA as part of the 2015 National Surgical Quality Improvement Program were identified...
August 12, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28869502/a-review-of-the-safety-and-efficacy-of-vaccines-as-prophylaxis-for-clostridium-difficile-infections
#12
REVIEW
Mackenzie Henderson, Amanda Bragg, Germin Fahim, Monica Shah, Evelyn R Hermes-DeSantis
This review aims to evaluate the literature on the safety and efficacy of novel toxoid vaccines for the prophylaxis of Clostridium difficile infections (CDI) in healthy adults. Literature searches for clinical trials were performed through MEDLINE, ClinicalTrials.gov, and Web of Science using the keywords bacterial vaccines, Clostridium difficile, and vaccine. English-language clinical trials evaluating the efficacy and/or safety of Clostridium difficile toxoid vaccines that were completed and had results posted on ClinicalTrials...
September 2, 2017: Vaccines
https://www.readbyqxmd.com/read/28867619/effect-of-sub-mic-of-vancomycin-and-clindamycin-alone-and-in-combination-with-ceftazidime-on-clostridium-difficile-surface-layer-protein-a-slpa-gene-expression
#13
Ebrahim Rezazadeh Zarandi, Shahla Mansouri, Nouzar Nakhaee, Farhad Sarafzadeh, Mohammad Moradi
Clostridium difficile (C.difficile) infection is often established in the presence of antibiotics and probably antibiotics can influence surface layer protein A (slpA) expression as a colonization factor. The aim of this study is to evaluate the effect of vancomycin (VAN), clindamycin (CLI) alone and in combination with ceftazidime (CAZ) on slpA gene expression to determine whether such antibiotics can have any effect on slpA expression. About ∼10(6) CFU/mL was inoculated to medium containing an appropriate concentration of antibiotics alone and in combination...
September 1, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28865041/bezlotoxumab-a-review-in-preventing-clostridium-difficile-infection-recurrence
#14
Emma D Deeks
Bezlotoxumab (Zinplava™) is a fully human monoclonal antibody against Clostridium difficile toxin B indicated for the prevention of C. difficile infection (CDI) recurrence in patients with a high recurrence risk. It is the first agent approved for recurrence prevention and is administered as a single intravenous infusion in conjunction with standard-of-care (SoC) antibacterial treatment for CDI. In well-designed, placebo-controlled, phase 3 trials (MODIFY 1 and 2), a single infusion of bezlotoxumab, given in combination with SoC antibacterial therapy for CDI in adults, was effective in reducing CDI recurrence in the 12 weeks post-treatment, with this benefit being seen mainly in the patients at high recurrence risk...
September 1, 2017: Drugs
https://www.readbyqxmd.com/read/28863080/loop-ileostomy-for-c-difficile-infection-know-thy-enemy
#15
David B Stewart
No abstract text is available yet for this article.
August 31, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28858131/recurrent-bacteremia-and-liver-abscess-caused-by-clostridium-difficile-a-case-report
#16
Hiroshi Morioka, Mitsutaka Iguchi, Teiji Kuzuya, Hiroshige Mikamo, Tetsuya Yagi
RATIONALE: Clostridium difficile bacteremia (CDB) and liver abscess is a quite rare presentation of C. difficile infection. PATIENTS CONCERNS: A 74-year-old male with primary biliary cirrhosis and hepatocellular carcinoma who underwent transarterial chemoembolization (TACE) developed a high fever on post-TACE day 14. Intravenous ceftriaxone and following meropenem were administered, however, his clinical response was poor. On post-TACE day 24, 2 sets of blood culture were taken due to elevation of C-reactive protein levels...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28858073/the-current-landscape-and-lessons-from-fecal-microbiota-transplantation-for-inflammatory-bowel-disease-past-present-and-future
#17
Jessica Allegretti, Lindsay M Eysenbach, Najwa El-Nachef, Monika Fischer, Colleen Kelly, Zain Kassam
Fecal microbiota transplantation (FMT) has changed the standard of care for Clostridium difficile infection. However, there is limited data focusing on efficacy and safety profile of FMT in patients with C. difficile infection with underlying inflammatory bowel disease (IBD), including the risk of IBD flare. Recently, there is also emerging evidence supporting the role of FMT to treat IBD including promising randomized trials in ulcerative colitis. However, with heterogeneity across these studies, the clinical application of this emerging therapy has yet to be fully elucidated...
August 29, 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28857034/discovery-of-a-novel-lantibiotic-nisin-o-from-blautia-obeum-a2-162-isolated-from-the-human-gastrointestinal-tract
#18
Diane Hatziioanou, Cristina Gherghisan-Filip, Gerhard Saalbach, Nikki Horn, Udo Wegmann, Sylvia H Duncan, Harry J Flint, Melinda J Mayer, Arjan Narbad
A novel lanC-like sequence was identified from the dominant human gut bacterium Blautia obeum strain A2-162. This sequence was extended to reveal a putative lantibiotic operon with biosynthetic and transport genes, two sets of regulatory genes, immunity genes, three identical copies of a nisin-like lanA gene with an unusual leader peptide, and a fourth putative lanA gene. Comparison with other nisin clusters showed that the closest relationship was to nisin U. B. obeum A2-162 demonstrated antimicrobial activity against Clostridium perfringens when grown on solid medium in the presence of trypsin...
August 31, 2017: Microbiology
https://www.readbyqxmd.com/read/28856119/characterization-of-chicken-igy-specific-to-clostridium-difficile-r20291-spores-and-the-effect-of-oral-administration-in-mouse-models-of-initiation-and-recurrent-disease
#19
Marjorie Pizarro-Guajardo, Fernando Díaz-González, Manuel Álvarez-Lobos, Daniel Paredes-Sabja
Clostridium difficile infection (CDI) are the leading cause of world-wide nosocomial acquired diarrhea. The current main clinical challenge in CDI is the elevated rate of infection recurrence that may reach up to 30% of the patients, which has been associated to the formation of dormant spores during the infection. We sought to characterize the effects of oral administration of specific anti-spore IgY in mouse models of CDI and recurrent CDI. The specificity of anti-spore IgY was evaluated in vitro. In both, initiation mouse model and recurrence mouse model, we evaluated the prophylactic and therapeutic effect of anti-spore IgY, respectively...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28855575/cd2068-potentially-mediates-multidrug-efflux-in-clostridium-difficile
#20
Chawalit Ngernsombat, Suthasinee Sreesai, Phurt Harnvoravongchai, Surang Chankhamhaengdecha, Tavan Janvilisri
Clostridium difficile is a major cause of antibiotic-associated diarrhea and the treatment thereof becomes more difficult owing to a rise of multidrug resistant strains. ATP-binding cassette (ABC) transporters are known to play a crucial role in the resistance to multiple antibiotics. In this study, the potential contribution of an ABC transporter in C. difficile multidrug resistance was investigated. The expression level of the cd2068 gene in C. difficile encoding an ABC transporter was up-regulated following the exposure to certain antibiotics compared to the control cells...
August 30, 2017: Scientific Reports
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