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2017 ; 20
(1
): 136-148
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Microbial-Host Co-metabolites Are Prodromal Markers Predicting Phenotypic
Heterogeneity in Behavior, Obesity, and Impaired Glucose Tolerance
#MMPMID28683308
Dumas ME
; Rothwell AR
; Hoyles L
; Aranias T
; Chilloux J
; Calderari S
; Noll EM
; Péan N
; Boulangé CL
; Blancher C
; Barton RH
; Gu Q
; Fearnside JF
; Deshayes C
; Hue C
; Scott J
; Nicholson JK
; Gauguier D
Cell Rep
2017[Jul]; 20
(1
): 136-148
PMID28683308
show ga
The influence of the gut microbiome on metabolic and behavioral traits is widely
accepted, though the microbiome-derived metabolites involved remain unclear. We
carried out untargeted urine (1)H-NMR spectroscopy-based metabolic phenotyping in
an isogenic C57BL/6J mouse population (n = 50) and show that microbial-host
co-metabolites are prodromal (i.e., early) markers predicting future divergence
in metabolic (obesity and glucose homeostasis) and behavioral (anxiety and
activity) outcomes with 94%-100% accuracy. Some of these metabolites also
modulate disease phenotypes, best illustrated by trimethylamine-N-oxide (TMAO), a
product of microbial-host co-metabolism predicting future obesity, impaired
glucose tolerance (IGT), and behavior while reducing endoplasmic reticulum stress
and lipogenesis in 3T3-L1 adipocytes. Chronic in vivo TMAO treatment limits IGT
in HFD-fed mice and isolated pancreatic islets by increasing insulin secretion.
We highlight the prodromal potential of microbial metabolites to predict disease
outcomes and their potential in shaping mammalian phenotypic heterogeneity.