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Compositional and Functional Adaptations of Intestinal Microbiota and Related Metabolites in CKD Patients Receiving Dietary Protein Restriction

Authors :
I-Wen Wu
Chin-Chan Lee
Heng-Jung Hsu
Chiao-Yin Sun
Yuen-Chan Chen
Kai-Jie Yang
Chi-Wei Yang
Wen-Hun Chung
Hsin-Chih Lai
Lun-Ching Chang
Shih-Chi Su
Source :
Nutrients, Vol 12, Iss 9, p 2799 (2020)
Publication Year :
2020
Publisher :
MDPI AG, 2020.

Abstract

The relationship between change of gut microbiota and host serum metabolomics associated with low protein diet (LPD) has been unraveled incompletely in CKD patients. Fecal 16S rRNA gene sequencing and serum metabolomics profiling were performed. We reported significant changes in the β-diversity of gut microbiota in CKD patients having LPD (CKD-LPD, n = 16). We identified 19 genera and 12 species with significant differences in their relative abundance among CKD-LPD patients compared to patients receiving normal protein diet (CKD-NPD, n = 27) or non-CKD controls (n = 34), respectively. CKD-LPD had a significant decrease in the abundance of many butyrate-producing bacteria (family Lachnospiraceae and Bacteroidaceae) associated with enrichment of functional module of butanoate metabolism, leading to concomitant reduction in serum levels of SCFA (acetic, heptanoic and nonanoic acid). A secondary bile acid, glyco λ-muricholic acid, was significantly increased in CKD-LPD patients. Serum levels of indoxyl sulfate and p-cresyl sulfate did not differ among groups. The relationship between abundances of microbes and metabolites remained significant in subset of resampling subjects of comparable characteristics. Enrichment of bacterial gene markers related to D-alanine, ketone bodies and glutathione metabolism was noted in CKD-LPD patients. Our analyses reveal signatures and functions of gut microbiota to adapt dietary protein restriction in renal patients.

Details

Language :
English
ISSN :
20726643
Volume :
12
Issue :
9
Database :
Directory of Open Access Journals
Journal :
Nutrients
Publication Type :
Academic Journal
Accession number :
edsdoj.8daed9afed8d413ba5572a997804d310
Document Type :
article
Full Text :
https://doi.org/10.3390/nu12092799