ArticleKidney international reports2026
Local Immunometabolic Intervention With Alanyl-Glutamine Resolves Peritoneal Dialysis-Induced Immune Cell Dysfunction.
Article in Kidney international reports, 2026. 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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15 authors.
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Abstract
Introduction: Peritoneal dialysis (PD) is the most prevalent home-based dialysis therapy. However, chronic exposure to metabolically imbalanced high-glucose PD fluids is associated with infectious complications and morphological changes that limit PD duration and patient survival. Here, we analyzed interactions among peritoneal cell immune function, inflammation, and glucose metabolism in a prospective cohort study of patients on PD. Methods: In 117 patients (mean follow-up: 2.15 years), samples from peritoneal equilibration tests (PETs) were assessed for interleukin (IL)-6 levels as a measure of peritoneal inflammation, and Results: Peritoneal inflammation correlated negatively with peritoneal cell immune function and positively with increased risk of subsequent peritonitis (hazard ratio: 3.8). Patients with higher peritoneal inflammation had an altered peritoneal metabolomic profile, with significant perturbation of glucose and amino acid metabolism. Immunometabolic intervention with alanyl-glutamine (AlaGln) supplementation of PD fluid restored immune cell function specifically in patients with high peritoneal inflammation, highlighting the potential to prevent subsequent infections. Conclusion: These results provide the first direct, longitudinal evidence linking immunometabolism with peritoneal glucose exposure, local inflammation, as well as impaired peritoneal cell function and infection in a human PD cohort. Metabolic intervention designed to restore adequate peritoneal cell immune function represents a novel therapeutic approach with promise for improved clinical outcomes in chronic PD.
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