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Journal Article Epublish

PubMed: 40396178 DOI: 10.3389/fimmu.2025.1546031

Microbiota-friendly diet ameliorates hypoalbuminemia in chronic kidney disease: evidence from NHANES.

Front Immunol 16:1546031

Authors: Xiaoyan Wang, Pengfei Wen, Fang Gao, JinXiu Zhao, Shuchuan Miao

Affiliations

  • Department of Clinical Nutrition, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, China.
  • Department of Dermatology, West China Hospital, Sichuan University, Chengdu, China.
  • Department of Nephrology, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, China.
  • Department of Vascular Surgery, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, China.
  • Department of Neurosurgery, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China.

Abstract

Chronic kidney disease (CKD) is a global health issue, affecting approximately 10% of the population. Hypoalbuminemia, a common complication in advanced CKD, is associated with poor prognosis. This study aimed to investigate the association between a microbiota-friendly dietary scoring system (Dietary Index for Gut Microbiota, DI-GM) and serum albumin levels in patients with CKD. We utilized a cross-sectional cohort from the NHANES 2007-2018, which included 2,947 CKD patients. Multivariable logistic regression and restricted cubic spline models were applied to analyze the relationship between DI-GM scores and serum albumin. Higher DI-GM scores were significantly associated with increased serum albumin levels (β = 0.18 g/L, 95% CI: 0.07-0.28, p = 0.002). Furthermore, each 1-point increase in DI-GM score was linked to a 15% reduction in the odds of hypoalbuminemia (OR: 0.85, 95% CI: 0.74-0.97, p = 0.014). The findings suggest that a high DI-GM diet may have beneficial effects in managing hypoalbuminemia in CKD patients by modulating gut microbiota composition and reducing inflammation. This diet pattern could be a promising dietary intervention for improving clinical outcomes in CKD patients, especially those at risk for malnutrition and inflammation.

MeSH

Kidney Diseases, Serum Albumin, Serum, Kidney, Diet, Microbiota, Hypoalbuminemia, Dietary Patterns