Are Human Intestinal Eukaryotes Beneficial or Commensals?

  Interestingly, several recent studies have found Blastocystis frequently in healthy individuals [7], sometimes at higher prevalence than in those with gastrointestinal disease [8]. [...]available data suggest that another protist, Dientamoeba fragilis (Fig 1E), has a similarly variable ecological...

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Bibliographic Details
Published in:PLoS pathogens 2015-08, Vol.11 (8), p.e1005039-e1005039
Main Authors: Lukeš, Julius, Stensvold, Christen Rune, Jirků-Pomajbíková, Kateřina, Wegener Parfrey, Laura
Format: Article
Language:English
Subjects:
Bacteria
Biomes
Cellulose
Colleges & universities
Ecosystems
Eukaryota
Eukaryotes
Gastrointestinal diseases
Gastrointestinal Microbiome - physiology
Health aspects
Health care
Host-parasite relationships
Humans
Localization
Mammals
Organisms
Parasites
Pearls
Symbiosis
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Summary:  Interestingly, several recent studies have found Blastocystis frequently in healthy individuals [7], sometimes at higher prevalence than in those with gastrointestinal disease [8]. [...]available data suggest that another protist, Dientamoeba fragilis (Fig 1E), has a similarly variable ecological role in the human intestinal ecosystem, occasionally associated with disease [9] but also highly prevalent in healthy individuals [7,8]. [...]a commensal relationship is more likely for those organisms confined to the lumen of the gut, as exemplified by Escherichia coli, Blastocystis, Dientamoeba, Enteromonas hominis (Fig 1B), and Retortamonas intestinalis (Fig 1C). [...]the nature of the host-eukaryote relationship will change depending on the context of the host and the gut ecosystem, so that the same organism may be parasitic in some cases and commensal in others.
ISSN:1553-7374
1553-7366
1553-7374
DOI:10.1371/journal.ppat.1005039