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Kearns, R., The Kynurenine Pathway in Gut Permeability and Inflammation. Inflammation, 2024. (PDF)

Ren, T., et al., Indole Propionic Acid Regulates Gut Immunity: Mechanisms of Metabolite-Driven Immunomodulation and Barrier Integrity. Journal of Microbiology and Biotechnology, 2025. 35(8): p. 1-13 (PDF)

Wang, W., et al., Gut microbiota determines the fate of dietary fiber-targeted interventions in host health. Gut Microbes, 2024. 16(1): p. 2416915 (PDF)

Schütz, B., et al., Modulation of Host Immunity by Microbiome‐Derived Indole‐3‐Propionic Acid and Other Bacterial Metabolites. European Journal of Immunology, 2025. 55(4): p. e202451594 (PDF)

Jiang, H., C. Chen, and J. Gao, Extensive Summary of the Important Roles of Indole Propionic Acid, a Gut Microbial Metabolite in Host Health and Disease. Nutrients, 2023. 15(1): p. 151 (PDF)

Sinha, A.K., et al., Dietary fibre directs microbial tryptophan metabolism via metabolic interactions in the gut microbiota. Nature Microbiology, 2024. 9(8): p. 1964-1978 (PDF)

Riazati, N., et al., Associations of microbial and indoleamine-2, 3-dioxygenase-derived tryptophan metabolites with immune activation in healthy adults. Frontiers in Immunology, 2022. 13: p. 917966 (PDF)

Tanes, C., et al., Role of dietary fiber in the recovery of the human gut microbiome and its metabolome. Cell host & microbe, 2021. 29(3): p. 394-407. e5 (PDF)