Role of gut microbiota and bacterial translocation in acute intestinal injury and mortality in patients admitted in ICU for septic shock

Autor: Chloé Magnan, Thomas Lancry, Florian Salipante, Rémi Trusson, Catherine Dunyach-Remy, Claire Roger, Jean-Yves Lefrant, Pablo Massanet, Jean-Philippe Lavigne
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Frontiers in Cellular and Infection Microbiology, Vol 13 (2023)
Druh dokumentu: article
ISSN: 2235-2988
DOI: 10.3389/fcimb.2023.1330900
Popis: IntroductionSepsis is a life-threatening organ dysfunction with high mortality rate. The gut origin hypothesis of multiple organ dysfunction syndrome relates to loss of gut barrier function and the ensuing bacterial translocation. The aim of this study was to describe the evolution of gut microbiota in a cohort of septic shock patients over seven days and the potential link between gut microbiota and bacterial translocation.MethodsSixty consecutive adult patients hospitalized for septic shock in intensive care units (ICU) were prospectively enrolled. Non-inclusion criteria included patients with recent or scheduled digestive surgery, having taken laxatives, pre- or probiotic in the previous seven days, a progressive digestive neoplasia, digestive lymphoma, chronic inflammatory bowel disease, moribund patient, and pregnant and lactating patients. The primary objective was to evaluate the evolution of bacterial diversity and richness of gut microbiota during seven days in septic shock. Epidemiological, clinical and biological data were gathered over seven days. Gut microbiota was analyzed through a metagenomic approach. 100 healthy controls were selected among healthy blood donors for reference basal 16S rDNA values.ResultsSignificantly lower bacterial diversity and richness was observed in gut microbiota of patients at Day 7 compared with Day 0 (p
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