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Results for “Clostridioides difficile”

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PubMed1993

Prevalence and toxigenicity of Clostridium difficile isolates in fecal microflora of preterm infants in the intensive care nursery.

Fecal isolates of Clostridium difficile and its toxin B were followed prospectively in 50 preterm intensive care nursery (ICN) patients. The first stool specimen was obtained after 1 week of enteral feeding, at 15 +/- 1 days of life, and 2 more specimens were collected at 2-week intervals, 24 +/- 1 and 32 +/- 2 days of life. The stools were cultured for C. difficile, and tested for C. difficile toxin B. In the first specimen 15% of stools grew C. difficile. In the second specimen C. difficile isolation rates increased to 33% and plateaued. Toxin B was detected in 71, 93 and 100% of culture-positive stools in the first, second, and third specimens, respectively. C. difficile colonization was not associated with a higher incidence of necrotizing enterocolitis or diarrhea, and using precollected, frozen human milk did not protect from C. difficile colonization.

Bacterial Proteins↗

PubMed1994

Effect of fiber source on short-chain fatty acid production and on the growth and toxin production by Clostridium difficile.

BACKGROUND: Fermentable fiber promotes the growth of resident gut microbes, which modify the environment of the gastrointestinal tract and thus prevent colonization by Clostridium difficile. METHODS: An in vitro system with pigs as fecal inoculum donors was used to estimate fiber fermentability and changes in intestinal microbiota. RESULTS: Acetate and propionate production (mumol/mg substrate fermented/day) was greatest for gum arabic (1013.4 and 704.1, respectively); butyrate production was greatest for xylo-oligosaccharide (345.6). Growth of total anaerobes and clostridia was greatest for gum arabic (21.2 and 16.2 x 10(8) counts/ml, respectively) and xylo-oligosaccharides (21.0 and 19.6 x 10(8) respectively); growth of acidogenic bacteria was greatest with fructo-oligosaccharide (6.7 x 10(8) counts/ml). No culturable counts of C. difficile were obtained, nor was toxin A detected. CONCLUSIONS: Fermentable fibers support the growth of indigenous intestinal bacteria, particularly acidogenic bacteria, and yield large amounts of short-chain fatty acids with decreased gut pH. These factors contribute to the prevention of growth and toxin elaboration by C. difficile.

Animals↗

PubMed2004

Development of an ELISA kit using monoclonal antibody to Clostridium difficile toxin A.

AIM: To establish an ELISA kit using monoclonal antibodies against Clostridium difficile (C. difficile) toxin A. METHODS: An indirect sandwich ELISA was described using the purified rabbit monospecific antiserum as capturing antibody. After the polystyrene microtitre plates with 96 flat-bottomed wells were coated with rabbit antiserum, the wells were blocked with 100 g/L BSA in PBS-T. C. difficile toxin A or culture filtrates were added to each well and then monoclonal antibodies IgG-horseradish peroxidase conjugate was added as detecting antibody, tetramethylbenzidine was used as substrate and A450 of the stopped reacting product was recorded in an automated plate reader. RESULTS: The tested specimens included culture filtrates of 2 strains of toxigenic C. difficile, 2 strains of non-toxigenic C. difficile, 26 strains of E. coli, 2 strains of S. dysenteriae, 1 strain of Bif. infantis, 5 strains of V. cholera, 2 strains of S. typhi, 7 strains of C. botulinum, 1 strain of toxigenic C. sordllii, and 1 strain of C. butyricum. A total of 47 strains of culture filtrates were all negative except for 2 strains of toxigenic C. difficile. The detective limitation of toxin A was 0.1 ng/mL. CONCLUSION: An ELISA kit with high specificity and excellent sensitivity for the rapid detection of C. difficile toxin A was established. It will be a useful tool for diagnostic test of C. difficile toxin A.

Animals↗

PubMedDate not supplied

Simultaneous assays for Clostridium difficile and faecal lactoferrin in ulcerative colitis.

Infectious agents may be one of the important factors in initiating or perpetuating ulcerative colitis. Increasing evidence has accumulated regarding the role of Clostridium difficile (C. difficile) infection in the exacerbation of ulcerative colitis. The present work was undertaken to study the implications of C. difficile toxin (CDT) and faecal lactoferrin (FL) positivity in patients with idiopathic ulcerative colitis (IUC) in a north Indian hospital. Ninety-four faecal samples from patients of IUC were processed for CDT and FL simultaneously. Clinical details of patients, including antibiotic intake in the past 6 weeks, were recorded. Eighty-one of the 94 patients (86.2%) had diarrhoea and 48 (51.1%) had received antibiotics. There was a statistically significant (p < 0.001) increase in the prevalence of diarrhoea among individuals receiving antibiotics. Twelve of the 94 samples (12.8%) were CDT positive while 16 were FL positive. No statistical significance (p > 0.05) was seen while comparing the positivity of CDT and FL in relation to the receipt of antibiotics. A statistically significant (p < 0.001) positive correlation was present between CDT and FL assays. FL positivity in IUC may depend on the intestinal inflammation precipitated by C. difficile infection.

Adolescent↗

PubMed2003

[Treatment of infections associated with Clostridium difficile].

Cases of antibiotic-associated diarrhoea (AAD) associated with toxigenic C. difficile strains more frequently are described recently. In Polish studies diagnosis of AAD or PMC (pseudomembranous colitis) was confirmed by isolation of C. difficile strains in 52% of suspected cases. Strains of C. difficile were isolated also from samples taken from hospital environment (10.5% positive samples). Problem of C. difficile-associated infection is more frequently observed in Poland also because of uncontrolled using of wide spectrum antibiotics. These antibiotics destroy intestinal microflora--"colonization resistance factor". Cases of AAD or PMC were described even after treatment of patients by vancomycin or metronidazol--antibiotics of choice for treatment of C. difficile-associated diseases. Other risk factors as: age, long term hospitalization, previous surgery, colonoscopy are also taken into account, when C. difficile-associated infections are suspected. Different treatment methods of C. difficile-associated infections are reviewed here and discussed in light of recent publications.

Anti-Bacterial Agents↗

PubMed2006

[Influence of selected Lactobacillus sp. on Clostridium difficile strains with different toxigenicity profile].

This study was performed for determination of antagonistic activity of Lactobacillus spp. (L. plantarum 2017405, L. rhamnosus GG, L. acidophilus DSM 21007 and L. fernmentumn 353) on Clostridiunl difficile strains belonging to different toxigenicity profiles. Forty strains C. difficile isolated from patients suffering from antibiotic associated diarrhea (AAD) were used. Among C. difficile strains 13 produced toxin A and B (A+B+CDT-), 14 produced only toxin B (AB'CDT), 9 produced toxins A and B and possessing of binary toxin genes (A+B+CDT-) and 4 were non-toxigenic (A-B-CDT-). We did not observe relationship between degree of antagonistic activity Lactobacillus spp. and profile of toxigenicity of C. difficile strains.

Antibiosis↗

PubMed1990

Incidence of Clostridium difficile in infants in rural and urban areas of Nigeria.

Stool specimens collected from 320 infants under 5 years of age resident in both rural and urban centres of Nsukka and Enugu towns in Anambra State, Nigeria were examined for the presence of Clostridium difficile and the frequency of occurrence determined. Clostridium difficile was isolated from 156 out of 320 samples (48.8%). The frequency was higher in infants resident in rural areas (52.5-48.3%) than in their urban counterparts (47.8-42%). A high frequency rate (77%) was obtained in diarrheal cases as against 42% in non diarrheal cases. A frequency of 57.7% was obtained in infants in the age group of 1 day - 1 yr, which decline with age to the lowest 5.6% in the age group of 4.5 years. The frequency of 66.1% was obtained in infants breast-fed plus formula supplementation, 41.7% in infants exclusively breast-fed and 33% in infants fed exclusively with formula foods. The findings suggest that the type of living environments, together with age and mode of feeding may contribute to the high intestinal carriage of Clostridium difficile in infants in parts of Nigeria.

Age Factors↗

PubMed1989

[2 cases of arthralgia associated with infection by Clostridium difficile].

The Clostridium difficile is the etiologic agent most often isolated in patients with antibiotic-associated colitis. Rarely this symptomatology is complicated by postinfection arthritis. The following describes 2 cases of acute colitis by clostridium difficile associated with acute polyarthritis.

Adult↗

PubMed1996

Herpes simplex virus (HSV) colitis in a bone marrow transplant recipient.

Herpes simplex virus (HSV) infections are common in bone marrow transplantation patients. Unusual sites may be involved, however colonic disease with HSV is rare. We report a successfully treated case of colitis due to HSV, cytomegalovirus, Clostridium difficile and graft-versus-host disease in an allogeneic marrow recipient.

Bone Marrow Transplantation↗

PubMedDate not supplied

[A case of slowly resolving enteritis caused by Clostridium difficile].

Clostridium difficile is considered as the most important cause of severe antibiotic-associated diarrhea and pseudomembranous colitis. We describe the case of an one year old boy presenting C. difficile chronic diarrhea without previous antibiotic treatments.

Anti-Bacterial Agents↗

PubMed1997

Multiple organ failure due to Clostridium difficile sepsis. A case report.

A case of severe sepsis caused by Clostridium difficile infection in a 66-year-old cirrhotic female is described. Severe systemic symptoms evolved rapidly to septic shock and ARDS, with signs and symptoms suggesting an acute abdomen requiring exploration for exclusion of surgical treatable diseases. The delayed diagnosis of Clostridium difficile infection probably contributed to the severity of the clinical course.

Clostridioides difficile↗

PubMed1994