International Journal of Tryptophan Research

Conversion Percentage of Tryptophan to Nicotinamide is Higher in Rice Protein Diet than in Wheat Protein Diet in Rats (Published on 05 Mar 2015)

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The Aryl Hydrocarbon Receptor: A Review of Its Role in the Physiology and Pathology of the Integument and Its Relationship to the Tryptophan Metabolism (Published on 10 Feb 2015)

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Enantiomeric Separation of Monosubstituted Tryptophan Derivatives and Metabolites by HPLC with a Cinchona Alkaloid-Based Zwitterionic Chiral Stationary Phase and Its Application to the Evaluation of the Optical Purity of Synthesized 6-Chloro-L-Tryptophan (Published on 07 Jan 2015)

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Mechanisms of the Pellagragenic Effect of Leucine: Stimulation of Hepatic Tryptophan Oxidation by Administration of Branched-Chain Amino Acids to Healthy Human Volunteers and the Role of Plasma Free Tryptophan and Total Kynurenines (Published on 04 Dec 2014)

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Imbalanced Kynurenine Pathway in Schizophrenia (Published on 16 Sep 2014)

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Tryptophan and Kynurenic Acid May Produce an Amplified Effect in Central Fatigue Induced by Chronic Sleep Disorder (Published on 14 May 2014)

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Kynurenic Acid Levels in Cerebrospinal Fluid from Patients with Alzheimer's Disease or Dementia with Lewy Bodies (Published on 28 Apr 2014)

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Immunohistochemical Studies of the Kynurenine Pathway in Morphea (Published on 23 Dec 2013)

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Sustained Elevation of Kynurenic Acid in the Cerebrospinal Fluid of Patients with Herpes Simplex Virus Type 1 Encephalitis (Published on 25 Nov 2013)

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Big Brains, Meat, Tuberculosis, and the Nicotinamide Switches: Co-Evolutionary Relationships with Modern Repercussions? (Published on 15 Oct 2013)

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Relationships between Salivary Melatonin Levels, Quality of Sleep, and Stress in Young Japanese Females (Published on 10 Oct 2013)

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Effects of Tranilast on the Urinary Excretion of Kynurenic and Quinolinic Acid Under Conditions of L Tryptophan Loading (Published on 22 Sep 2013)

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The Kynurenine Pathway in Stem Cell Biology (Published on 15 Sep 2013)

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Kynurenic Acid in the Digestive System—New Facts, New Challenges (Published on 04 Sep 2013)

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The Tumor-Selective Cytotoxic Agent ß-Lapachone is a Potent Inhibitor of IDO1 (Published on 19 Aug 2013)

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L-Tryptophan Metabolism in Pregnant Mice Fed a High L-Tryptophan Diet and the Effect on Maternal, Placental, and Fetal Growth (Published on 14 Aug 2013)

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ISTRY 2013 Special Issue (Published on 21 Jul 2013)

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Nutritional Aspect of Tryptophan Metabolism (Published on 21 Jul 2013)

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Determination of L-tryptophan and L-kynurenine in Human Serum by using LC-MS after Derivatization with (R)-DBD-PyNCS (Published on 21 Jul 2013)

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Role of NAD+, Oxidative Stress, and Tryptophan Metabolism in Autism Spectrum Disorders (Published on 21 Jul 2013)

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Induction of TDO2 and IDO2 in Liver by High-Fat Feeding in Mice: Discrepancies with Human Obesity (Published on 21 Jul 2013)

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Kynurenine Pathway Pathologies: do Nicotinamide and Other Pathway Co-Factors have a Therapeutic Role in Reduction of Symptom Severity, Including Chronic Fatigue Syndrome (CFS) and Fibromyalgia (FM) (Published on 21 Jul 2013)

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Species and Cell Types Difference in Tryptophan Metabolism (Published on 21 Jul 2013)

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Tryptophan-Restriction Diets Help to Maintain L-Tryptophan Homeostasis in Tryptophan 2,3-Dioxygenase Knockout Mice (Published on 21 Jul 2013)

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Exploitation of the IDO Pathway in the Therapy of Rheumatoid Arthritis (Published on 21 Jul 2013)

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Characterization of the Kynurenine Pathway and Quinolinic Acid Production in Macaque Macrophages (Published on 15 May 2013)

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Transport of Kynurenic Acid by Rat Organic Anion Transporters rOAT1 and rOAT3: Species Difference between Human and Rat in OAT1 (Published on 17 Feb 2013)

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Kynurenic Acid Metabolism in Various Types of Brain Pathology in HIV-1 Infected Patients (Published on 13 Dec 2012)

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Fate of Dietary Tryptophan in Young Japanese Women (Published on 30 Oct 2012)

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A Brief Historic Overview of Clinical Disorders Associated with Tryptophan: The Relevance to Chronic Fatigue Syndrome (CFS) and Fibromyalgia (FM) (Published on 17 Sep 2012)

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Kynurenine Pathway in Skin Cells: Implications for UV-Induced Skin Damage (Published on 03 Jul 2012)

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A Jerte Valley Cherry-Based Product as a Supply of Tryptophan (Published on 16 Apr 2012)

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Quinolinic Acid, an Endogenous Molecule Combining Excitotoxicity, Oxidative Stress and Other Toxic Mechanisms (Published on 23 Feb 2012)

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Stochastic Resonance Activity Influences Serum Tryptophan Metabolism in Healthy Human Subjects (Published on 08 Nov 2011)

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Kynurenine Pathway Hypothesis: The Nature of the Chronic Fatigue Syndrome (CFS) Revisited (Published on 31 Jul 2011)

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L-Tryptophan Production by Auxotrophic and Analogue Resistant Mutants of Aureobacterium flavescens (Published on 29 May 2011)

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Effects of Kynurenine Pathway Inhibition on NAD+ Metabolism and Cell Viability in Human Primary Astrocytes and Neurons (Published on 08 May 2011)

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Tryptophan Transport in Human Fibroblast Cells— A Functional Characterization (Published on 19 Apr 2011)

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Modulation of Tryptophan Metabolism, Promotion of Neurogenesis and Alteration of Anxiety-Related Behavior in Tryptophan 2,3-Dioxygenase-Deficient Mice (Published on 11 Apr 2011)

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Tryptophan Oxidative Metabolism Catalyzed by Geobacillus Stearothermophilus: A Thermophile Isolated from Kuwait Soil Contaminated with Petroleum Hydrocarbons (Published on 10 Jan 2011)

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Rapid Isocratic Liquid Chromatographic Separation and Quantification of Tryptophan and Six kynurenine Metabolites in Biological Samples with Ultraviolet and Fluorimetric Detection (Published on 08 Dec 2010)

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Alzheimer’s and Seizures: Interleukin-18, Indoleamine 2,3-Dioxygenase and Quinolinic Acid (Published on 15 Oct 2010)

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Understanding the Roles of the Kynurenine Pathway in Multiple Sclerosis Progression (Published on 25 Aug 2010)

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Kynurenine Pathway Metabolism is Involved in the Maintenance of the Intracellular NAD+ Concentration in Human Primary Astrocytes (Published on 03 Aug 2010)

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Implication of Tryptophan 2,3-Dioxygenase and its Novel Variants in the Hippocampus and Cerebellum During the Developing and Adult Brain (Published on 23 Jul 2010)

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Tryptophan, Neurodegeneration and HIV-Associated Neurocognitive Disorder (Published on 10 Jun 2010)

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IDO-Mediated Tryptophan Degradation in the Pathogenesis of Malignant Tumor Disease (Published on 10 Jun 2010)

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Effects of Acute Tryptophan Depletion on Three Different Types of Behavioral Impulsivity (Published on 10 Jun 2010)

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Proteasomal Degradation of Indoleamine 2,3-Dioxygenase  in CD8+ Dendritic Cells is Mediated by Suppressor of Cytokine Signaling 3 (SOCS3) (Published on 10 Jun 2010)

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Indoleamine 2,3-Dioxygenase in Human Hematopoietic Stem Cell Transplantation (Published on 10 Jun 2010)

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