ReviewNeuropharmacology2017
The kynurenine pathway and the brain: Challenges, controversies and promises.
Review in Neuropharmacology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05986513 (Investigating Brain Abnormalities in People With Knee Osteoarthritis Using MRI), which is not on this map. Cited by 261 papers, 5 of them syntheses 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.
Investigating Brain Abnormalities in People With Knee Osteoarthritis Using MRI: a Nociplastic Pain Mechanism Based Assessment
Who cites it
261 citing papers in PubMed, 5 syntheses or guidelines pooled it, 433 citations in OpenAlex.
- Microglia associated research in depression: an exploratory trends analysis.Frontiers in aging neuroscience · 2026Pooled it
- Importance of the dysregulation of the kynurenine pathway on cognition in schizophrenia: a systematic review of clinical studies.European archives of psychiatry and clinical neuroscience · 2023Pooled it
- Sex Differences in Tryptophan Metabolism: A Systematic Review Focused on Neuropsychiatric Disorders.International journal of molecular sciences · 2023Pooled it
- The kynurenine pathway in bipolar disorder: a meta-analysis on the peripheral blood levels of tryptophan and related metabolites.Molecular psychiatry · 2021Pooled it
- BrainFrontiers in immunology · 2021Pooled it
- Kynurenine metabolites unchanged after multinutrient supplementation in children with ADHD: a secondary data analysis from the MADDY study.Journal of neural transmission (Vienna, Austria : 1996) · 2026Trial
- Tryptophan challenge in individuals with schizophrenia and healthy controls: acute effects on circulating kynurenine and kynurenic acid, cognition and cerebral blood flow.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2023Trial
- Learning to play golf for elderly people with subjective memory complaints: feasibility of a single-blinded randomized pilot trial.BMC neurology · 2021Trial
- Exercise Diminishes Plasma Neurofilament Light Chain and Reroutes the Kynurenine Pathway in Multiple Sclerosis.Neurology(R) neuroimmunology & neuroinflammation · 2021Trial
- Limited effects of long-term daily cranberry consumption on the gut microbiome in a placebo-controlled study of women with recurrent urinary tract infections.BMC microbiology · 2021Trial
- The putative role of the microbiota in the development of neuropsychiatric disorders following early childhood malnutrition.Gut microbes · 2026Review
- Is increased inflammation in schizophrenia associated with increased cardiovascular risk and the etiopathogenesis of this disorder?Brain, behavior, & immunity - health · 2026Article
- The Tryptophan-Kynurenine Pathway as a Key Mediator of the Gut-Brain Axis in Depression and Alzheimer's Disease.International journal of molecular sciences · 2026Review
- Virobiome-mediated regulation of microbiota-gut-brain axis signaling and neuroimmune homeostasis.Cell communication and signaling : CCS · 2026Review
- Tryptophan Metabolism in Digestive and Extra-Digestive Diseases: Mechanisms, Clinical Implications, and Therapeutic Perspectives.Nutrients · 2026Review
- Developmental Brain Network Trajectories Differentiate Resilience and Vulnerability to Psychosis in 22q11.2 Deletion Syndrome.Biological psychiatry global open science · 2026Article
- The Gut-Immune-Brain Axis in Aging: Integrating Immunosenescence, Inflammaging, and Neuroinflammation for Precision Medicine.Medical sciences (Basel, Switzerland) · 2026Review
- Review
- Pharmacological Modulation of the Kynurenine Pathway Using PF-04859989 Modulates PACAP Signaling in Migraine-Relevant Trigeminal Sensitization.Biomolecules · 2026Article
- Gut microbiota-targeted interventions for depression in adolescents and young adults: Mechanisms, evidence strength and clinical strategies-A narrative review.General psychiatry · 2026Review
201 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
2 authors at 2 institutions in 2 countries.
Funding
Abstract
Research on the neurobiology of the kynurenine pathway has suffered years of relative obscurity because tryptophan degradation, and its involvement in both physiology and major brain diseases, was viewed almost exclusively through the lens of the well-established metabolite serotonin. With increasing recognition that kynurenine and its metabolites can affect and even control a variety of classic neurotransmitter systems directly and indirectly, interest is expanding rapidly. Moreover, kynurenine pathway metabolism itself is modulated in conditions such as infection and stress, which are known to induce major changes in well-being and behaviour, so that kynurenines may be instrumental in the etiology of psychiatric and neurological disorders. It is therefore likely that the near future will not only witness the discovery of additional physiological and pathological roles for brain kynurenines, but also ever-increasing interest in drug development based on these roles. In particular, targeting the kynurenine pathway with new specific agents may make it possible to prevent disease by appropriate pharmacological or genetic manipulations. The following overview focuses on areas of kynurenine research which are either controversial, of major potential therapeutic interest, or just beginning to receive the degree of attention which will clarify their relevance to neurobiology and medicine. It also highlights technical issues so that investigators entering the field, and new research initiatives, are not misdirected by inappropriate experimental approaches or incorrect interpretations at this time of skyrocketing interest in the subject matter. This article is part of the Special Issue entitled 'The Kynurenine Pathway in Health and Disease'.
Indexed as
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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.