ArticleBiomolecules2020
Kynurenic Acid Levels are Increased in the CSF of Alzheimer's Disease Patients.
Article in Biomolecules, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers, 3 of them syntheses that pooled it.
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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.
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Who cites it
45 citing papers in PubMed, 3 syntheses or guidelines pooled it, 75 citations in OpenAlex.
- Kynurenine pathway dysregulation in cognitive impairment and dementia: a systematic review and meta-analysis.GeroScience · 2026Pooled it
- Pooled it
- Dynamic changes in metabolites of the kynurenine pathway in Alzheimer's disease, Parkinson's disease, and Huntington's disease: A systematic Review and meta-analysis.Frontiers in immunology · 2022Pooled it
- 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
- Targeting the SIRT6-TDO2/KYNA-mTOR axis rescues synaptic and cognitive deficits in fetal growth restriction offspring.Experimental & molecular medicine · 2026Article
- Biochemical and Pharmacological Studies on Kynurenic Acid Metabolism in theBiomolecules · 2026Article
- Biochemical Regulation of Brain Kynurenic Acid Synthesis and Inhibition in Rats Is Sensitive to the Time of Day.ACS chemical neuroscience · 2026Article
- Kynurenine pathway dysregulation in major depressive disorder: the convergence of excitotoxicity, neuroinflammation, and oxidative stress.Journal of neuroinflammation · 2026Review
- Gut microbiota and the tryptophan-kynurenine pathway in anxiety: new insights and treatment strategies.Journal of neural transmission (Vienna, Austria : 1996) · 2025Review
- The Kynurenine Pathway in Gut Permeability and Inflammation.Inflammation · 2025Review
- Fabrication of MIP-based sensors for femtomolar detection of kynurenic acid for early diagnosis of neurodegenerative diseases.ACS omega · 2025Article
- Importance of Gut Microbiota Dysbiosis and Circadian Disruption-Associated Biomarkers in Emergence of Alzheimer's Disease.Molecular neurobiology · 2025Review
- A Fast Immunosensor Based on Biohybrid Self-Assembled Nanostructures for the Detection of KYNA as a Cerebrospinal Fluid Biomarker for Alzehimer's Disease.ACS measurement science au · 2025Article
- Differentiating Progressive Supranuclear Palsy and Corticobasal Syndrome: Insights from Cerebrospinal Fluid Biomarkers-A Narrative Review.Medicina (Kaunas, Lithuania) · 2025Review
- Decrypting the Possible Mechanistic Role of Fenofibrate in Alzheimer's Disease and Type 2 Diabetes: The Truth and Mystery.Journal of cellular and molecular medicine · 2025Review
- Sensitive Detection of Kynurenic Acid from Biological Fluids Using a Flexible Electrochemical Platform Based on Gold Nanoparticles and Reduced Graphene Oxide.International journal of molecular sciences · 2025Article
- Kynurenine pathway: a possible new mechanism for exercise in the prevention and treatment of Alzheimer's disease.Frontiers in aging neuroscience · 2025Review
- Article
- Tryptophan Metabolism in Alzheimer's Disease with the Involvement of Microglia and Astrocyte Crosstalk and Gut-Brain Axis.Aging and disease · 2024Review
- The Kynurenine Pathway, Aryl Hydrocarbon Receptor, and Alzheimer's Disease.Brain sciences · 2024Review
Corrections and comments
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Authors and funding
16 authors at 4 institutions in 1 country.
Funding
Abstract
Kynurenic acid (KYNA) is a product of the tryptophan (TRP) metabolism via the kynurenine pathway (KP). This pathway is activated in neurodegenerative disorders, such as Alzheimer´s disease (AD). KYNA is primarily produced by astrocytes and is considered neuroprotective. Thus, altered KYNA levels may suggest an inflammatory response. Very recently, significant increases in KYNA levels were reported in cerebrospinal fluid (CSF) from AD patients compared with normal controls. In this study, we assessed the accuracy of KYNA in CSF for the classification of patients with AD, cognitively healthy controls, and patients with a variety of other neurodegenerative diseases, including frontotemporal dementia (FTD), amyotrophic lateral sclerosis (ALS), and progressive supranuclear palsy (PSP). Averaged KYNA concentration in CSF was higher in patients with AD when compared with healthy subjects and with all the other differentially diagnosed groups. There were no significant differences in KYNA levels in CSF between any other neurodegenerative groups and controls. These results suggest a specific increase in KYNA concentration in CSF from AD patients not seen in other neurodegenerative diseases.
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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.