ArticleJournal of translational medicine2025
Intestinal congestion-driven gut dysbiosis: a cross-disease hemodynamic mechanism in liver cirrhosis and heart failure.
Article in Journal of translational medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundIntestinal congestion is a common pathophysiological feature of both liver cirrhosis and heart failure (HF). This study aimed to investigate whether intestinal congestion induces similar gut microbiota and metabolite alterations under both conditions, and to identify key microbial and metabolic signatures.
methodsWe analyzed 117 cirrhosis patients (uncomplicated cirrhosis, cirrhosis with hepatocellular carcinoma, transjugular intrahepatic portosystemic shunt, and liver transplantation), 75 HF patients, and 31 healthy controls (CG). We performed 16S rRNA sequencing on all samples to assess gut microbial diversity, and subjected six representative samples per group to metagenomic sequencing. We conducted untargeted metabolomics on 30 fecal samples each from the uncomplicated cirrhosis, HF with reduced ejection fraction (HFrEF), and CG groups to profile intestinal metabolites, followed by correlation analyses among representative taxa, clinical characteristics, and key metabolites.
resultsIntestinal congestion of different etiologies exhibits similar alterations in the gut microbiota, particularly in patients with uncomplicated cirrhosis and HFrEF. Alterations in Bacteroides were closely associated with the severity of congestion. Veillonella and Lactobacillales were enriched in cirrhotic patients, whereas Coprococcus was uniquely abundant in HFs. Metabolomic analysis revealed significant reductions in tripeptides, anti-inflammatory compounds, and prostaglandin analogs in patients with intestinal congestion. Musacin D and neopterin may serve as potential noninvasive biomarkers for HF and cirrhosis, respectively.
conclusionIntestinal congestion is associated with gut microbiota dysbiosis and metabolic disturbances in cirrhosis and HFs, with specific microbes and metabolites showing potential predictive value for distinguishing underlying diseases.
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