Journal ArticleDOI
Stability of human methanogenic flora over 35 years and a review of insights obtained from breath methane measurements.
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TLDR
The activity of the methanogenic flora of healthy adults remained remarkably stable over the past 35 years despite widespread antibiotic use and dietary changes.About:
This article is published in Clinical Gastroenterology and Hepatology.The article was published on 2006-02-01. It has received 162 citations till now. The article focuses on the topics: Atmospheric methane.read more
Citations
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Journal ArticleDOI
Metabolic, phylogenetic, and ecological diversity of the methanogenic archaea.
Yuchen Liu,William B. Whitman +1 more
TL;DR: The ecology of methanogens highlights their complex interactions with other anaerobes and the physical and chemical factors controlling their function.
Journal ArticleDOI
Comparative metabolomics in vegans and omnivores reveal constraints on diet-dependent gut microbiota metabolite production
Gary D. Wu,Charlene Compher,Eric Z. Chen,Sarah A. Smith,Rachana Shah,Kyle Bittinger,Christel Chehoud,Lindsey Albenberg,Lisa Nessel,Erin Gilroy,Julie Star,Aalim M. Weljie,Harry J. Flint,David C. Metz,Michael J. Bennett,Hongzhe Li,Frederic D. Bushman,James D. Lewis +17 more
TL;DR: High consumption of fermentable substrate in vegans was not associated with higher levels of faecal short chain fatty acids, a finding confirmed in a 10-day controlled feeding experiment, and residence in globally distinct societies helps determine the composition of the gut microbiota that influences the production of diet-dependent gut microbial metabolites.
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The gut microbiome of healthy Japanese and its microbial and functional uniqueness
Suguru Nishijima,Wataru Suda,Kenshiro Oshima,Seok Won Kim,Yuu Hirose,Hidetoshi Morita,Masahira Hattori +6 more
TL;DR: It seems that the gut microbiome of the Japanese is considerably different from those of other populations, which cannot be simply explained by diet alone, and it is postulate possible existence of hitherto unknown factors contributing to the population-level diversity in human gut microbiomes.
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High prevalence of Methanobrevibacter smithii and Methanosphaera stadtmanae detected in the human gut using an improved DNA detection protocol.
TL;DR: In contrast to previous reports, these data indicate a high prevalence of the methanogens M. smithii and M. stadtmanae in the human gut, with the former being an almost ubiquitous inhabitant of the intestinal microbiome.
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Archaea and the human gut: New beginning of an old story
TL;DR: An updated census of the archaeal diversity associated with the human GIT and their possible role in the gut physiology and health is provided and particularly focuses on the still poorly characterized 7th order of methanogens, the Methanomassiliicoccales associated to aged population.
References
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Selective stimulation of bifidobacteria in the human colon by oligofructose and inulin.
TL;DR: Small changes in diet can alter the balance of colonic bacteria towards a potentially healthier microflora, and a 15-g.day-1 dietary addition of oligofructose or inulin led to Bifidobacterium becoming the numerically predominant genus in feces.
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Lactobacillus and bifidobacterium in irritable bowel syndrome: Symptom responses and relationship to cytokine profiles
Liam O'Mahony,Jane McCarthy,Peter Kelly,George J Hurley,Fangyi Luo,Ker-Sang Chen,Gerald C. O'Sullivan,Barry Kiely,J. Kevin Collins,Fergus Shanahan,Eamonn Martin Quigley +10 more
TL;DR: B infantis 35624 alleviates symptoms in IBS; this symptomatic response was associated with normalization of the ratio of an anti-inflammatory to a proinflammatory cytokine, suggesting an immune-modulating role for this organism, in this disorder.
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Analysis of the Fecal Microbiota of Irritable Bowel Syndrome Patients and Healthy Controls with Real-Time PCR
Erja Malinen,Teemu Rinttilä,Kajsa Kajander,Jaana Mättö,Anna Kassinen,Lotta Krogius,Maria Saarela,Riitta Korpela,Airi Palva +8 more
TL;DR: With these real-time PCR assays, quantitative alterations in the GI microbiota of IBS patients were found and increasing microbial DNA sequence information will further allow designing of new real- time PCR Assays for a more extensive analysis of intestinal microbes in IBS.
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Factors influencing pulmonary methane excretion in man. An indirect method of studying the in situ metabolism of the methane-producing colonic bacteria.
TL;DR: The studies of CH4 excretion demonstrate that the exposure of individuals to intestinal bacterial metabolites may differ markedly and that these differences may be chronic and determined by familial factors.
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Production, metabolism, and excretion of hydrogen in the large intestine.
TL;DR: The proportion of H2 that is exhaled in breath is higher than currently accepted and varies with total excretion rate, which is similar to that of methanogenic and sulfate-reducing bacteria.