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Showing PubMed Articles, all 12 from Anaerobe
Clostridium difficile is primarily a nosocomial pathogen, causing thousands of cases of antibiotic-associated diarrhoea in the UK each year. In this study, we used a batch fermentation model of a C. difficile colonised system to evaluate the potential of a prophylactic and a remedial bacteriophage treatment regime to control the pathogen. It is shown that the prophylaxis regime was effective at preventing the growth of C. difficile (p =
Presence of periodontopathic bacteria in coronary arteries from patients with chronic periodontitis.
In this study was detected the presence of periodontopathic pathogens in atheromatous plaques removed from coronary arteries of patients with chronic periodontitis and periodontally healthy subjects by PCR. Our results indicate a significant association between the presence of P. gingivalis and atheromas, and the periodontal bacteria in oral biofilm may find a way to reach arteries.
Fusobacterium necrophorum bacteremic tonsillitis: 2 cases and a review of the literature.
Fusobacterium necrophorum can cause endemic pharyngitis and the Lemierre syndrome. Four previous case reports and one epidemiologic study have documented that some F. necrophorum pharyngitis patients develop bacteremia without developing the complete Lemierre syndrome. We report two more patients who have bacteremic F. necrophorum pharyngitis. We summarize the clinical presentation of these six patients. All received early diagnosis and excellent response to antibiotics. We speculate that prompt antibiotic...
A review of three cases of Clostridium aldenense bacteremia.
Three cases of Clostridium aldenense bacteremia are reported. C. aldenense is also associated with intra-abdominal infections and closely resembles C. clostridioforme and therefore may be misidentified. C. aldenense may be a more frequent pathogen than appreciated and is generally fluoroquinolone resistant.
Anaerobic meningitis after missed penetrating trauma in a 6-year old child.
Anaerobic meningitis may occur alone, but is usually encountered as a complication of a brain abscess. In either case it is rare in a normal host. We present a 6-year old boy with anaerobic meningitis after missed penetrating trauma, stressing the need for a thorough investigation after head trauma.
Longitudinal investigation of Clostridium difficile shedding in piglets.
A longitudinal study of C. difficile colonization in piglets was performed on one conventional swine farm in Ontario, Canada. Fecal samples were collected from 10 sows prior to their expected farrowing date, and then from all their piglets on days 2, 7, 30, 44 and 62 of life. Clostridium difficile was isolated from 4/10 (40%) of sows prior to farrowing, 90/121 (74%) piglets on day 2, 66/117 (56%) on day 7, 45/113 (40%) on day 30, 23/101 (23%) on day 44 and 2/54 (3.7%) on day 62. There was a significant decr...
The aim of this study was to determine the prevalence of enterotoxigenic Bacteroides fragilis (ETBF) in the patients with diarrhea in our region and to assess the association between diarrhea and bft gene subtypes. The presence of ETBF and bft gene subtypes were investigated in 200 stool samples from patients with diarrhea, diagnosed as gastroenteritis, which were sent to Clinical Microbiology Laboratory at Zonguldak Karaelmas University, Training and Research Hospital and in 200 stool samples from age-matc...
Segmented filamentous bacteria (SFB) colonize in the ileum. They promote the development of intraepithelial lymphocytes and immunoglobulin A (IgA)-producing cells in the small intestine. In SFB-monoassociated mice, changes in SFB colonization of the small intestine were related to the level of IgA derived from maternal milk during the suckling period and self-produced in the small intestine after weaning. In this study, we investigated whether or not maternal and neonatal IgA influence the colonization of S...
Probiotics and prebiotics have been demonstrated to positively modulate the intestinal microflora and could promote host health. Although some studies have been performed on combinations of probiotics and prebiotics, constituting synbiotics, results on the synergistic effects tend to be discordant in the published works. The first aim of our study was to screen some lactic acid bacteria on the basis of probiotic characteristics (resistance to intestinal conditions, inhibition of pathogenic strains). Bifidob...
Head-and-neck infections often involve anaerobes such as Prevotella species. Aim of the present study was to assess the evolution and the factors associated with resistance in Prevotella species to penicillin, clindamycin, metronidazole, tetracycline and beta-lactams/beta-lactamase inhibitors (BL/BLIs). In total, 192 Prevotella strains, isolated from patients with oral and head-and-neck infections, were evaluated. Common isolates were Prevotella intermedia and Prevotella melaninogenica within the pigmented...
Ruminococcus gnavus E1, Bacteroides thetaiotaomicron LEMF4, Clostridium hathewayi LEMC7, and Clostridium orbiscindens LEMH9 were isolated from ex germ-free mice inoculated with a human faecal microbiota. When initially germ-free mice who were previously inoculated with the strain E1 alone, or a four-strain consortium [E1, LEMF4, LEMC7, and LEMH9], were then challenged with 10(8) counts of Clostridium perfringens; the target strain was rapidly eliminated from the digestive tract of the animals (
We attempted to isolate Lactobacillus spp. from the marine oyster (Crassostrea gigas) and select stress resistant strains for development of a future marine aquaculture feed adjuvant. A total of 83 lactobacilli strains were isolated from oyster. They were all Gram-positive, rod-shaped and catalase-negative. By performing a stress resistance assay, we selected eighteen isolates. Based on 16S rRNA gene sequencing, L. paracasei was the most prevalent species among the selected isolates. The in vitro antagonist...
