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Fecal Microbiota in Healthy Subjects Following Omnivore, Vegetarian and Vegan Diets: Culturable Populations and rRNA DGGE Profiling
Open accessAbstract
In this study, the fecal microbiota of 153 healthy volunteers, recruited from four different locations in Italy, has been studied by coupling viable counts, on different microbiological media, with ribosomal RNA Denaturing Gradient Gel Electrophoresis (rRNA-DGGE). The volunteers followed three different diets, namely omnivore, ovo-lacto-vegetarian and vegan. The results obtained from culture-dependent and -independent methods have underlined a high level of similarity of the viable fecal microbiota for the three investigated diets. The rRNA DGGE profiles were very complex and comprised a total number of bands that varied from 67 to 64 for the V3 and V9 regions of the 16S rRNA gene, respectively. Only a few bands were specific in/of all three diets, and the presence of common taxa associated with the dietary habits was found. As far as the viable counts are concerned, the high similarity of the fecal microbiota was once again confirmed, with only a few of the investigated groups showing significant differences. Interestingly, the samples grouped differently, according to the recruitment site, thus highlighting a higher impact of the food consumed by the volunteers in the specific geographical locations than that of the type of diet. Lastly, it should be mentioned that the fecal microbiota DGGE profiles obtained from the DNA were clearly separated from those produced using RNA, thus underlining a difference between the total and viable populations in the fecal samples.
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“While the amounts of Bacteroides and Firmicutes associated with vegan, vegetarian and omnivore diets from these studies and others [137, 138] are conflicting, it can be concluded that eating vegetables, fiber and/or resistant starch along with animal protein seems to diminish the negative effects of the potentially harmful byproducts from amino acids fermented by the gut microbiota.”
From Exercise-induced stress behavior, gut-microbiota-brain axis and diet: a systematic review for athletes (2016) · cites this paper as [138]
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Metadata
- Authors
- Ferrocino, I., Di Cagno, R., De Angelis, M., Turroni, S., Vannini, L., Bancalari, E., Rantsiou, K., Cardinali, G., Neviani, E., & Cocolin, L.
- Affiliations
- University of Turin (IT)
- University of Bologna (IT)
- University of Parma (IT)
- University of Perugia (IT)
- Corresponding author
- Cocolin, Luca
- ORCID
- Venue
- PLOS ONE
- Publisher
- Public Library of Science (PLoS)
- Published
- 2015-06-02
- Volume
- 10
- Issue
- 6
- Pages
- e0128669
- ISSN
- 1932-6203 (ISSN-L)
- PMC
- PMC4452701
- OpenAlex
- W563597376
- Cited by
- 107
- References
- 41
- Citations by year
- 2026: 3 · 2025: 6 · 2024: 4 · 2023: 12 · 2022: 8 · 2021: 17 · 2020: 11 · 2019: 10 · 2018: 13 · 2017: 17 · 2016: 6
- FWCI
- 5.21
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- PLoS ONE (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- Archivio istituzionale della ricerca (Alma Mater Studiorum Università di Bologna) (submittedVersion, cc-by)
- Institutional Research Information System University of Turin (University of Turin) (submittedVersion, other-oa)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Figshare (submittedVersion, cc-by)
- CINECA IRIS Institutional Research Information System (University of Bari Aldo Moro) (submittedVersion, other-oa)
- Open Research (University of Surrey) (submittedVersion)
- Funders
- Ministero dell’Istruzione, dell’Università e della Ricerca (PRIN 2010-2011 “, 2010-2011, (PRIN 2010))
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
- Life Sciences › Agricultural and Biological Sciences › Food Science › Probiotics and Fermented Foods
- Health Sciences › Nursing › Nutrition and Dietetics › Infant Nutrition and Health
- Keywords
- fecal microbiota, diet, omnivorous diet, vegetarian diet, vegan diet, 16S rRNA gene, viable cell count, culturable microorganisms, regional variation
- MeSH terms
- Diet, Vegan, Adolescent, Adult, Diet, Female, Humans, Italy, Male, Middle Aged, Diet, Vegetarian, Denaturing Gradient Gel Electrophoresis, Microbiota
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