8/3/2023 0 Comments Nds lost in blue rom![]() ![]() Huber T, Faulkner G, Hugenholtz P (2004) Bellerophon: a program to detect chimeric sequences in multiple sequence alignments. Zoetendal EG, Heilig HG, Klaassens ES, Booijink CC, Kleerebezem M, Smidt H, de Vos WM (2006) Isolation of DNA from bacterial samples of the human gastrointestinal tract. Lawson RD, Coyle WJ (2010) The noncolonic microbiome: does it really matter? Curr Gastroenterol Rep 12:259–262 pillory-associated gastritis? J Med Microbiol 47:695–704 Tiveljung A, Borch K, Jonasson J, Mårdh S, Petersson F, Monstein HJ (1998) Identification of Helicobacter in gastric biopsies by PCR based on 16S rDNA sequences: a matter of little significance for the prediction of H. Li XX, Wong GL, To KF, Wong VW, Lai LH, Chow DK, Lau JY, Sung JJ, Ding C (2009) Bacterial microbiota profiling in gastritis without Helicobacter pylori infection or non-steroidal anti-inflammatory drug use. Proc Natl Acad Sci USA 103:732–737Īndersson A, Lindberg M, Jakobsson H, Bäckhed F, Nyrén P, Engstrand L (2008) Comparative analysis of human gut microbiota by barcoded pyrosequencing. ![]() J Med Microbiol 49:817–822īik EM, Eckburg PB, Gill SR, Nelson KE, Purdom EA, Francois F, Perez-Perez G, Blaser MJ, Relman DA (2006) Molecular analysis of the bacterial microbiota in the human stomach. Monstein HJ, Tiveljung A, Kraft CH, Borch K, Jonasson J (2000) Profiling of bacterial flora in gastric biopsies from patients with Helicobacter pylori-associated gastritis and histologically normal control individuals by temperature gradient gel electrophoresis and 16S rDNA sequence analysis. Infect Immun 71:3529–3539Īdamson I, Nord CE, Lundquist P, Sjöstedt S, Edlund C (1999) Comparative effects of omeprazole, amoxycillin plus metronidazole versus omeprazole, clarithromycin plus metronidazole on the oral, gastric and intestinal microflora in Helicobacter pylori-infected patients. Merrell DS, Goodrich ML, Otto G, Tompkins LS, Falkow S (2003) pH-regulated gene expression of the gastric pathogen Helicobacter pylori. Marshall BJ, Warren JR (1984) Unidentified curved bacilli in the stomach of patients with gastritis and peptic ulceration. This is the first study in which a combination of culture and culture-independent techniques has been used to explore the bacterial diversity of the human stomach. Comparison of the stomach microbiota with that present in other parts of the human gastrointestinal tract revealed distinctive microbial communities. Considerable differences in the composition of the gastric microbiota were observed among the subjects, although in all samples the most abundant operational taxonomic units belonged to Streptococcus, Propionibacterium and Lactobacillus. Sequence analysis grouped the reads into 59 families and 69 genera, revealing wide bacterial diversity. A total of 15,622 high-quality 16S rDNA sequence reads were obtained by pyrosequencing from the four mucosal samples. Isolates belonged mainly to four genera Propionibacterium, Lactobacillus, Streptococcus and Staphylococcus. ![]() ![]() The isolates were identified at the species level by PCR amplification and sequencing of the 16S rDNA. The total number of cultivable microorganisms recovered from the samples ranged from 10 2 to 10 4 cfu/g or ml. Microbial DNA from four mucosal samples was also amplified by nested PCR using universal bacterial primers, and the 16S rDNA amplicons pyrosequenced. Stomach mucosa biopsies and gastric juices samples of 12 healthy persons were analysed by culturing in selective- and non-selective-rich media. ![]()
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