Abstract

Kidney transplant recipients (KTR) have impaired health-related quality of life (HRQoL) and suffer from intestinal dysbiosis. Increasing evidence shows that gut health and HRQoL are tightly related in the general population. Here, we investigate the association between the gut microbiome and HRQoL in KTR, using metagenomic sequencing data from fecal samples collected from 507 KTR. Multiple bacterial species are associated with lower HRQoL, many of which have previously been associated with adverse health conditions. Gut microbiome distance to the general population is highest among KTR with an impaired physical HRQoL (R = -0.20, P = 2.3 × 10 -65) and mental HRQoL (R = -0.14, P = 1.3 × 10 -3). Physical and mental HRQoL explain a significant part of variance in the gut microbiome (R 2  = 0.58%, FDR = 5.43 × 10 -4 and R 2  = 0.37%, FDR = 1.38 × 10 -3, respectively). Additionally, multiple metabolic and neuroactive pathways (gut brain modules) are associated with lower HRQoL. While the observational design of our study does not allow us to analyze causality, we provide a comprehensive overview of the associations between the gut microbiome and HRQoL while controlling for confounders.

Original languageEnglish
Article number7968
Number of pages11
JournalNature Communications
Volume14
Issue number1
Early online date2-Dec-2023
DOIs
Publication statusPublished - 2-Dec-2023

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