Journal ArticleDOI
Propionate as a health-promoting microbial metabolite in the human gut.
TLDR
The present review discusses the two main propionate-production pathways and provides an extended gene-based list of microorganisms with the potential to producepropionate and evaluates the promising potential of arabinoxylan, polydextrose, and L-rhamnose to act as substrates to increase microbial propionates.Abstract:
Propionate is a major microbial fermentation metabolite in the human gut with putative health effects that extend beyond the gut epithelium. Propionate is thought to lower lipogenesis, serum cholesterol levels, and carcinogenesis in other tissues. Steering microbial propionate production through diet could therefore be a potent strategy to increase health effects from microbial carbohydrate fermentation. The present review first discusses the two main propionate-production pathways and provides an extended gene-based list of microorganisms with the potential to produce propionate. Second, it evaluates the promising potential of arabinoxylan, polydextrose, and L-rhamnose to act as substrates to increase microbial propionate. Third, given the complexity of the gut microbiota, propionate production is approached from a microbial-ecological perspective that includes interaction processes such as cross-feeding mechanisms. Finally, it introduces the development of functional gene-based analytical tools to detect and characterize propionate-producing microorganisms in a complex community. The information in this review may be helpful for designing functional food strategies that aim to promote propionate-associated health benefits.read more
Citations
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Journal ArticleDOI
The microbiota and helminths: sharing the same niche in the human host.
TL;DR: The influence of the gut microbiota and helminths on host nutrition and immunity and the subsequent effects on the human host's overall health are discussed.
Journal ArticleDOI
The Cholesterol-Lowering Effect of Oats and Oat Beta Glucan: Modes of Action and Potential Role of Bile Acids and the Microbiome.
TL;DR: The potential for oat β-glucan to influence microbial populations in the gut with potential consequences for bile acid metabolism, reverse cholesterol transport (RCT), short-chain fatty acid production, bacterial metabolism of cholesterol and microbe-host signaling is considered.
Journal ArticleDOI
Iron Modulates Butyrate Production by a Child Gut Microbiota In Vitro
Alexandra Dostal,Christophe Lacroix,Lea Bircher,Van Thanh Pham,Rainer Follador,Michael B. Zimmermann,Christophe Chassard +6 more
TL;DR: In this in vitro study, environmental Fe concentrations in a continuous gut fermentation model closely mimicking a child's gut microbiota strongly affect the composition of the gut microbiome and its metabolic activity, particularly butyrate production.
Journal ArticleDOI
Gut microbial metabolism of polyphenols from black tea and red wine/grape juice is source-specific and colon-region dependent.
van F.A. Dorsten,S.W.M. Peters,Gabriele Gross,V. Gomez-Roldan,M. Klinkenberg,de R.C. Vos,Elaine E. Vaughan,van J.P.M. Duynhoven,Sam Possemiers,van der T. Wiele,Doris M. Jacobs +10 more
TL;DR: The colonic microbial degradation of a polyphenol-rich black tea extract (BTE) and red wine/grape juice extract (RWGE) was compared in a five-stage in vitro gastrointestinal model (TWINSHIME) as mentioned in this paper.
Journal ArticleDOI
In vitro fermentation of juçara pulp (Euterpe edulis) by human colonic microbiota.
Karla Bigetti Guergoletto,Karla Bigetti Guergoletto,Adele Costabile,Gema Flores,Sandra Garcia,Glenn R. Gibson +5 more
TL;DR: Fermentation of juçara pulp resulted in a significant increase in numbers of bifidobacteria after a 24h fermentation compared to a negative control; however, human studies are necessary to prove its efficacy.
References
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Journal ArticleDOI
Dietary Modulation of the Human Colonic Microbiota: Introducing the Concept of Prebiotics
TL;DR: By combining the rationale of pro- and prebiotics, the concept of synbiotics is proposed to characterize some colonic foods with interesting nutritional properties that make these compounds candidates for classification as health-enhancing functional food ingredients.
Journal ArticleDOI
The gut microbiota as an environmental factor that regulates fat storage
Fredrik Bäckhed,Hao Ding,Hao Ding,Ting Wang,Lora V. Hooper,Gou Young Koh,Andras Nagy,Clay F. Semenkovich,Jeffrey I. Gordon +8 more
TL;DR: In this article, the authors found that conventionalization of adult germ-free C57BL/6 mice with a normal microbiota harvested from the distal intestine (cecum) of conventionally raised animals produces a 60% increase in body fat content and insulin resistance within 14 days despite reduced food intake.
Journal ArticleDOI
Host-Bacterial Mutualism in the Human Intestine
TL;DR: New studies are revealing how the gut microbiota has coevolved with us and how it manipulates and complements the authors' biology in ways that are mutually beneficial.
Journal ArticleDOI
Dissemination and growth of cancer cells in metastatic sites
TL;DR: Inhibition of the growth of metastases in secondary sites offers a promising approach for cancer therapy and could help to improve the treatment of metastatic disease.
Journal ArticleDOI
Gut flora in health and disease
TL;DR: Gut flora might be an essential factor in certain pathological disorders, including multisystem organ failure, colon cancer, and inflammatory bowel diseases, and Probiotics and prebiotics are known to have a role in prevention or treatment of some diseases.
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