Abstract
The aim of this human study was to assess the influence of prebiotic-induced gut microbiota modulation on PUFA-derived bacterial metabolites production. Therefore, we analyzed the circulating fatty acid profile including CLA/CLnA in obese women treated during 3 months with inulin-type fructan prebiotics. In these patients, we had already determined gut microbiota composition by phylogenetic microarray and qPCR analysis of 16S rDNA. Some PUFA-derived bacterial metabolites were detected in the serum of obese patients. Despite the prebiotic-induced modulation of gut microbiota, including changes in CLA/CLnA-producing bacteria, the treatment did not impact significantly on the circulating level of these metabolites. However, some PUFA-derived bacterial metabolites were positively correlated with specific fecal bacteria (Bifidobacterium spp., Eubacterium ventriosum and Lactobacillus spp.) and inversely correlated with serum cholesterol (total, LDL, HDL). These correlations suggest a potential beneficial effect of some of these metabolites but this remains to be confirmed by further investigation.
Abbreviations
- CLA:
-
Conjugated linoleic acid
- CLnA:
-
Conjugated linolenic acid
- FA:
-
Fatty acid
- FAME:
-
Fatty acid methyl ester
- HDL:
-
High density lipoprotein
- HITChip:
-
Human Intestinal Tract Chip
- ITF:
-
Inulin-type fructans
- LDL:
-
Low density lipoprotein
- PPAR:
-
Peroxisome proliferator-activated receptor
- TAG:
-
Triacylglycerol
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Acknowledgments
We would like to thank L. De Vuyst who helped us to quantify Roseburia spp. C.D. benefits from a Danone Institute grant. P.D.C. is a Research Associate from the FRS-FNRS (Fonds de la Recherche Scientifique, Belgium). PDC and NMD are recipients of FSR and FRSM subsidies (Fonds spéciaux de recherches, UCL, Belgium; Fonds de la recherche scientifique médicale, Belgium). PDC is a recipient of ERC Starting grant. This project was supported by a FNRS grant (No. 1.5.095.09F).
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The authors declare that they have no conflict of interest.
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Druart, C., Dewulf, E.M., Cani, P.D. et al. Gut Microbial Metabolites of Polyunsaturated Fatty Acids Correlate with Specific Fecal Bacteria and Serum Markers of Metabolic Syndrome in Obese Women. Lipids 49, 397–402 (2014). https://doi.org/10.1007/s11745-014-3881-z
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DOI: https://doi.org/10.1007/s11745-014-3881-z