ReviewNutrients2022
Indolepropionic Acid, a Gut Bacteria-Produced Tryptophan Metabolite and the Risk of Type 2 Diabetes and Non-Alcoholic Fatty Liver Disease.
Review in Nutrients, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers, 2 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
43 citing papers in PubMed, 2 syntheses or guidelines pooled it, 62 citations in OpenAlex.
- Pooled it
- Heart-Gut Axis in Cardiometabolic Disease: Microbiome-Mediated Pathways Linking Metabolic Syndrome to Cardiovascular Risk.Medicina (Kaunas, Lithuania) · 2026Pooled it
- Fava bean and buckwheat are sustainable food sources which support satiety and beneficially modulate several biomarkers, bacteria and metabolites associated with human health.European journal of nutrition · 2025Trial
- Association between whole-grain consumption, tryptophan metabolism and psychological distress: a secondary analysis of a randomised controlled trial.The British journal of nutrition · 2024Trial
- Gut Microbiota-Derived Indole-3-Propionic Acid Alleviates Diabetic Osteoporosis Through Nrf2-Mediated Ferroptosis Suppression.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Tryptophan Metabolism in Digestive and Extra-Digestive Diseases: Mechanisms, Clinical Implications, and Therapeutic Perspectives.Nutrients · 2026Review
- Fluorescent Nanosensor for Indole-3-Propionic Acid Detection in Gut Health Monitoring.Advanced healthcare materials · 2026Article
- Proline/serine-rich coiled-coil 1 alleviates atherosclerosis via remodeling tryptophan metabolism mediated by Akkermansia muciniphila.Experimental & molecular medicine · 2026Article
- Microbiota-derived indole-3-propionic acid extends lifespan in Drosophila and improves muscle and bone health in mice.GeroScience · 2026Article
- Gut microbiota in type 2 diabetes mellitus: mechanistic links between dysbiosis, insulin resistance, and chronic low-grade inflammation.Frontiers in endocrinology · 2026Review
- The 2R, 3R isomer of 2, 3-butanediol prevents weight gain and decreases plasma glucose concentration of mice fed a fat-enriched diet.Frontiers in physiology · 2026Article
- Precision nutrition targeting the gut microbiota for weight management: mechanisms and applications.Frontiers in microbiology · 2026Review
- Leveraging microbiota-metabolites to reduce inflammation and promote functional recovery following spinal cord injury in female mice.Brain, behavior, & immunity - health · 2025Article
- Comprehensive SNP-based evaluation of fat mass and obesity-associated geneJournal of diabetes and metabolic disorders · 2025Article
- Walnut kernel pellicle polyphenols: subcritical water extraction, digestive characteristics, and their effect on gut microbiota and metabolites.Food chemistry: X · 2025Article
- Microbiota-Derived Tryptophan Metabolite Indole-3-Propionic Acid-Emerging Role in Neuroprotection.Molecules (Basel, Switzerland) · 2025Review
- Alterations and mechanistic insights of gut microbiota and its metabolites in type 2 diabetes mellitus and Alzheimer's disease.iMetaOmics · 2025Review
- Indole Propionic Acid Regulates Gut Immunity: Mechanisms of Metabolite-Driven Immunomodulation and Barrier Integrity.Journal of microbiology and biotechnology · 2025Review
- Tryptophan metabolites exert potential therapeutic activity in graves' orbitopathy by ameliorating orbital fibroblasts inflammation and proliferation.Journal of endocrinological investigation · 2025Article
- Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 3 institutions in 2 countries.
Funding
Abstract
An intricate relationship between gut microbiota, diet, and the human body has recently been extensively investigated. Gut microbiota and gut-derived metabolites, especially, tryptophan derivatives, modulate metabolic and immune functions in health and disease. One of the tryptophan derivatives, indolepropionic acid (IPA), is increasingly being studied as a marker for the onset and development of metabolic disorders, including type 2 diabetes (T2D) and non-alcoholic fatty liver disease (NAFLD). The IPA levels heavily depend on the diet, particularly dietary fiber, and show huge variations among individuals. We suggest that these variations could partially be explained using genetic variants known to be associated with specific diseases such as T2D. In this narrative review, we elaborate on the beneficial effects of IPA in the mitigation of T2D and NAFLD, and further study the putative interactions between IPA and well-known genetic variants (
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.