| 1. |
- Karagin, Peren H, et al.
(författare)
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Helicobacter species and common gut bacterial DNA in gallbladder with cholecystitis.
- 2010
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Ingår i: World Journal of Gastroenterology. - : Baishideng Publishing Group Inc.. - 1007-9327. ; 16:38, s. 4817-4822
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Tidskriftsartikel (refereegranskat)abstract
- AIM: To analyze the association between Helicobacter spp. and some common gut bacteria in patients with cholecystitis. METHODS: A nested-polymerase chain reaction (PCR), specific to 16S rRNA of Helicobacter spp. was performed on paraffin-embedded gallbladder samples of 100 cholecystitis and 102 control cases. The samples were also analyzed for some common gut bacteria by PCR. Positive samples were sequenced for species identification. RESULTS: Helicobacter DNA was found in seven out of 100 cases of acute and chronic cholecystitis. Sequence analysis displayed Helicobacter pullorum (H. pullorum) in six cases and Helicobacter pylori in one; H. pullorum was only found in cases with metaplasia. Control samples were negative for Helicobacter spp. and some common gut bacteria. There was a significant difference (P = 0.007) between cholecystitis and control samples for Helicobacter DNA. CONCLUSION: A possible relationship was detected between Helicobacter DNA and cholecystitis. Further serological and immunohistochemical studies are needed to support these data.
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| 2. |
- Karagin, Peren H, et al.
(författare)
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Helicobacter species and gut bacterial DNA in Meckel's diverticulum and the appendix.
- 2011
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Ingår i: World Journal of Gastroenterology. - : Baishideng Publishing Group Inc.. - 1007-9327. ; 17:36, s. 4104-4108
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Tidskriftsartikel (refereegranskat)abstract
- AIM: To analyse the possible association of various Helicobacter species and certain common gut bacteria in patients with Meckel's diverticulum and appendicitis. METHODS: A nested-polymerase chain reaction (PCR), specific to 16S rRNA of the Helicobacter genus, was performed on paraffin embedded samples, 50 with acute appendicitis, 50 normal appendixes, and 33 Meckel's diverticulum with gastric heterotopia and/or ulcer. Helicobacter genus positive samples were sequenced for species identification. All samples were also analysed for certain gut bacteria by PCR. RESULTS: Helicobacter pullorum DNA was found in one out of 33 cases and Enterobacteria in two cases of Meckel's diverticulum. Helicobacter pylori (H. pylori) was found in three, Enterobacter in 18, and Bacteroides in 19 out of 100 appendix samples by PCR. Enterococcus was not found in any MD or appendix samples. All H. pylori positive cases were from normal appendixes. CONCLUSION: Helicobacter is not an etiological agent in the pathogenesis of symptomatic Meckel's diverticulum or in acute appendicitis.
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| 3. |
- Kondepudi, Kanthi Kiran, et al.
(författare)
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A novel multi-strain probiotic and synbiotic supplement for prevention of Clostridium difficile infection in a murine model.
- 2014
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Ingår i: Microbiology and Immunology. - : Wiley. - 1348-0421 .- 0385-5600. ; 58:10, s. 552-558
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Tidskriftsartikel (refereegranskat)abstract
- The protective effect of a multi-strain probiotic and synbiotic formulation was evaluated in C57BL/6 mice infected with Clostridium difficile (CD) NAP1/027. Antibiotic treated mice were divided into four groups. Group 1, fed with a synbiotic formulation consisting of Lactobacillus plantarum F44, L. paracasei F8, Bifidobacterium breve 46, B. lactis 8:8, galacto-oligosaccharides (GOS), isomalto-oligosaccharides (IMOS) and resistant starch (RS); group 2, fed with the same four probiotic strains as in group 1; group 3, fed with the same prebiotic supplements as mentioned in group 1 for seven days before CD infection and group 4, the control group, was antibiotic treated and infected with NAP1/027 strain. Faeces and caecal contents were collected for microbial cell viability, quantitative PCR (qPCR), toxin analyses and histopathology. Synbiotics and probiotics fed mice showed a significant increase of total bifidobacteria (P < 0.05). Total lactobacilli count was increased in group 1. The caecal toxins were negative in group 2 mice, and one sample each from group 1 and 3 was positive. qPCR of caecal content showed significant reduction in NAP1/027 DNA copies in group 1-2 and significantly higher numbers of B. breve 46, L. plantarum F44 and L. paracasei F8 in group 1 and 2 (P < 0.05) but much less pronounced in group 3-4. This study demonstrated that the newly developed synbiotic or multi-strain probiotic formulation conferred protection against NAP1/027 infection in C57BL/6 mice. This holds promising to conduct future human studies.
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