ArticleCells2022
Differential Levels of Tryptophan-Kynurenine Pathway Metabolites in the Hippocampus, Anterior Temporal Lobe, and Neocortex in an Animal Model of Temporal Lobe Epilepsy.
Article in Cells, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 7 citations in OpenAlex.
- Epilepsy as a Disorder of Neuroimmune Metabolism: The Kynurenine Pathway as a Link Between Cognitive and Psychiatric Dysfunction.Biomolecules · 2026Review
- The kynurenine pathway storm in epilepsy: mechanisms and therapeutic implications.Acta epileptologica · 2026Review
- Biomarkers associated with blood-brain interface regulation and relationships to exercise and epilepsy: a brief review.Frontiers in rehabilitation sciences · 2026Review
- The interplay between metabolism and neuroinflammation in epilepsy: mechanisms and therapeutic perspectives.Journal of neuroinflammation · 2025Review
- Glucosinolate Metabolites and Brain Health: An Updated Review on Their Potential Benefits in Neurodegenerative, Neurodevelopmental, and Psychiatric Disorders.Antioxidants (Basel, Switzerland) · 2025Review
- Identification and enrichment of potential pathways in the buffy coat of patients with DRE using non-targeted metabolomics integrated with GEO Datasets.European journal of medical research · 2025Article
- Kynurenine Pathway in Epilepsy: Unraveling Its Role in Glutamate Excitotoxicity, GABAergic Dysregulation, Neuroinflammation, and Mitochondrial Dysfunction.Neurotoxicity research · 2025Review
- Gut microbiota and serum metabolomic alterations in modulating the impact of fecal microbiota transplantation on ciprofloxacin-induced seizure susceptibility.Frontiers in microbiology · 2024Article
- Benzyl isothiocyanate ameliorates cognitive function in mice of chronic temporal lobe epilepsy.Frontiers in neurology · 2024Article
- Neuroinflammation and status epilepticus: a narrative review unraveling a complex interplay.Frontiers in pediatrics · 2023Review
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Glutamate-receptor-mediated hyperexcitability contributes to seizure generation in temporal lobe epilepsy (TLE). Tryptophan-kynurenine pathway (TKP) metabolites regulate glutamate receptor activity under physiological conditions. This study was designed to investigate alterations in the levels of TKP metabolites and the differential regulation of glutamatergic activity by TKP metabolites in the hippocampus, anterior temporal lobe (ATL), and neocortex samples of a lithium-pilocarpine rat model of TLE. We observed that levels of tryptophan were reduced in the hippocampus and ATL samples but unaltered in the neocortex samples. The levels of kynurenic acid were reduced in the hippocampus samples and unaltered in the ATL and neocortex samples of the TLE rats. The levels of kynurenine were unaltered in all three regions of the TLE rats. The magnitude of reduction in these metabolites in all regions was unaltered in the TLE rats. The frequency and amplitude of spontaneous excitatory postsynaptic currents were enhanced in hippocampus ATL samples but not in the neocortex samples of the TLE rats. The exogenous application of kynurenic acid inhibited glutamatergic activity in the slice preparations of all these regions in both the control and the TLE rats. However, the magnitude of reduction in the frequency of kynurenic acid was higher in the hippocampus (18.44 ± 2.6% in control vs. 30.02 ± 1.5 in TLE rats) and ATL (16.31 ± 0.91% in control vs. 29.82 ± 3.08% in TLE rats) samples of the TLE rats. These findings suggest the differential regulation of glutamatergic activity by TKP metabolites in the hippocampus, ATL, and neocortex of TLE rats.
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