ReviewGut microbes2020
Host-microbiome interactions: the aryl hydrocarbon receptor as a critical node in tryptophan metabolites to brain signaling.
Review in Gut microbes, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 88 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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
88 citing papers in PubMed, 1 synthesis or guideline pooled it, 134 citations in OpenAlex.
- Gut microbiota-modulating interventions in paediatric type 1 diabetes: a systematic review and meta-analysis.European journal of pediatrics · 2026Pooled it
- The microbiota-lymphocyte protective axis (MLPA): a novel paradigm for overcoming radiation-induced lymphopenia (RIL) and potentiating the efficacy of tumor immuno-combination therapy.Cancer immunology, immunotherapy : CII · 2026Review
- Integrated multi-omics analysis reveals gut dysbiosis and altered energy metabolism in Chinese ALS patients.Microbiology spectrum · 2026Article
- Environmental factors that regulate host-helminth interactions.Trends in parasitology · 2026Review
- The aging gut-glia-immune axis in alzheimer's disease: microbiome-derived mediators of neuroinflammation and therapeutic innovation.GeroScience · 2026Review
- Intestinal epithelial AhR deletion aggravates DSS-induced colitis via lipid- and amino-acid metabolic reprogramming: integrated metabolomic-transcriptomic evidence.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2026Article
- Gut metabolite indole-3-acetic acid aggravates neuropsychiatric lupus via the AHR/STAT3 pathway in microglia.Communications biology · 2026Article
- Microbiota-derived IPA mitigates post-stroke neuroinflammation by inhibiting TREM2-dependent pyroptosis.Journal of neuroinflammation · 2026Article
- Microglia-astrocyte crosstalk as a key organizing principle of Alzheimer's disease: from homeostatic cooperation to maladaptive signaling loops.Frontiers in aging neuroscience · 2026Review
- Harnessing Dietary Tryptophan: Bridging the Gap Between Neurobiology and Psychiatry in Depression Management.International journal of molecular sciences · 2026Review
- Ligand-specific duality of aryl hydrocarbon receptor signaling in cognitive health: from environmental neurotoxicity to microbiome-mediated neuroprotection.Frontiers in neuroscience · 2026Review
- Diet, mycobiome and virome: from mucosal immunity to gut-brain axis regulation.Frontiers in nutrition · 2026Review
- The microbiota-tryptophan-brain axis in neurodegenerative diseases: pathogenic mechanisms, disease-specific roles, and translational therapeutics.Frontiers in microbiology · 2026Review
- Microbial tryptophan metabolites modulate blood-brain and gut barriersNeuroscience applied · 2026Article
- Article
- Beyond dysbiosis: microbial metabolites as key remodelers of nasal mucosal immune tolerance in chronic rhinosinusitis.Frontiers in immunology · 2026Review
- From mucus secretion to immune surveillance: the evolving roles of goblet cells in intestinal homeostasis and inflammation.Frontiers in immunology · 2026Review
- Gut microbial metabolites in cutaneous inflammation: shared mechanisms and therapeutic opportunities.Frontiers in immunology · 2026Review
- The role of gut microbiota in neuropathic pain: insights into immune mechanisms.The journal of headache and pain · 2025Review
- Impact of Hericium erinaceus and Ganoderma lucidum metabolites on AhR activation in neuronal HT-22 cells.Pharmacological reports : PR · 2025Article
28 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Tryptophan (Trp) is not only a nutrient enhancer but also has systemic effects. Trp metabolites signaling through the well-known aryl hydrocarbon receptor (AhR) constitute the interface of microbiome-gut-brain axis. However, the pathway through which Trp metabolites affect central nervous system (CNS) function have not been fully elucidated. AhR participates in a broad variety of physiological and pathological processes that also highly relevant to intestinal homeostasis and CNS diseases. Via the AhR-dependent mechanism, Trp metabolites connect bidirectional signaling between the gut microbiome and the brain, mediated via immune, metabolic, and neural (vagal) signaling mechanisms, with downstream effects on behavior and CNS function. These findings shed light on the complex Trp regulation of microbiome-gut-brain axis and add another facet to our understanding that dietary Trp is expected to be a promising noninvasive approach for alleviating systemic diseases.
Indexed as
Identifiers
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.