SYSTEMATIC REVIEW article
Front. Endocrinol.
Sec. Diabetes: Molecular Mechanisms
Volume 16 - 2025 | doi: 10.3389/fendo.2025.1559638
This article is part of the Research TopicGut and Circulating Microbiota in the Pathophysiology and Clinical Complications of DiabetesView all 4 articles
Gut-associated Metabolites and Diabetes Pathology: A Systematic Review
Provisionally accepted- 1School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, Queensland, Australia
- 2Centre for Immunology and Infection Control, School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, Queensland, Australia
- 3Centre for Vision and Eye Research, Faculty of Health, Queensland University of Technology, Brisbane, Australia
- 4Queensland Diabetes and Endocrine Centre, Mater Hospital Brisbane, South Brisbane, Australia
- 5Mater Research Institute, Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
- 6School of Clinical Medicine, Faculty of Health, Queensland University of Technology, Brisbane, Australia
- 7Queensland Eye Institute, South Brisbane, Queensland, Australia
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Background. As the global prevalence of diabetes mellitus reaches epidemic proportions, research into new therapeutic targets that address the underlying pathomechanisms of the disease is essential. Recent studies have elucidated the fundamental role of intestinal metabolic pathways in human health and disease processes and yet, the underlying cause of metabolic dysregulation in diabetes is largely unknown. Therefore, this systematic review aimed to identify the intestinal metabolomic profiles associated with gestational diabetes mellitus, type 1 diabetes mellitus, pre-diabetes mellitus, and type 2 diabetes mellitus. Methods. A systematic review of databases and grey literature repositories identified primary literature published between 2005 and 2022, that investigated patterns of human- and microbial-derived metabolite concentration in individuals with diabetes. Results. Data extracted from thirty-four eligible studies revealed 272 metabolites that were associated with diabetes diseases; the majority correlated with incidence of type 2 diabetes mellitus only. Inter-study discrepancies were reported based on the biospecimen type used in metabolomic analyses, namely blood, stool, or urine. Conclusion. The results of this review emphasise the paucity of research investigating gestational and type 1 diabetes mellitus intestinal metabolic perturbations. Furthermore, the potential for inter-study bias in downstream metabolomic analyses based on sample type warrants further investigation.
Keywords: Diabetes Mellitus, Metabolomics, Systematic review, Intestines, microbial up-/down-regulation
Received: 13 Jan 2025; Accepted: 01 May 2025.
Copyright: © 2025 Gough, Dando, Teasdale, Feigl, Huygens and Pelzer. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Katelyn Louise Gough, School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, 4001, Queensland, Australia
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