Tipping elements in the human intestinal ecosystem.

Abstract:

:The microbial communities living in the human intestine can have profound impact on our well-being and health. However, we have limited understanding of the mechanisms that control this complex ecosystem. Here, based on a deep phylogenetic analysis of the intestinal microbiota in a thousand western adults, we identify groups of bacteria that exhibit robust bistable abundance distributions. These bacteria are either abundant or nearly absent in most individuals, and exhibit decreased temporal stability at the intermediate abundance range. The abundances of these bimodally distributed bacteria vary independently, and their abundance distributions are not affected by short-term dietary interventions. However, their contrasting alternative states are associated with host factors such as ageing and overweight. We propose that the bistable groups reflect tipping elements of the intestinal microbiota, whose critical transitions may have profound health implications and diagnostic potential.

journal_name

Nat Commun

journal_title

Nature communications

authors

Lahti L,Salojärvi J,Salonen A,Scheffer M,de Vos WM

doi

10.1038/ncomms5344

subject

Has Abstract

pub_date

2014-07-08 00:00:00

pages

4344

issn

2041-1723

pii

ncomms5344

journal_volume

5

pub_type

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