Author

Tomoya Natsuyama

Observed names: Natsuyama T, 夏山　知也

Institution: University of Occupational and Environmental Health Japan

Observed institutions: University of Occupational and Environmental Health Japan, Hospital of the University of Occupational and Environmental Health

ORCID: 0000-0002-8068-8698

Observed ORCID: 0000-0002-8068-8698

OpenAlex ID: A5029901228

Associations Between the Kynurenine Pathway, Proinflammatory Cytokines, and Brain-Derived Neurotrophic Factor in Hospitalized Patients With Chronic Schizophrenia: A Preliminary Study

2021 · Naomichi Okamoto, Tomoya Natsuyama, et al. · Frontiers in Psychiatry · 17

PDF

Volumetric assessment of individual thalamic nuclei in patients with drug-naïve, first-episode major depressive disorder

2023 · Enkhmurun Chibaatar, Keita Watanabe, et al. · Frontiers in Psychiatry · 16

PDF

Hippocampal Volume and Plasma Brain-Derived Neurotrophic Factor Levels in Patients With Depression and Healthy Controls

2022 · Rintaro Fujii, Keita Watanabe, et al. · Frontiers in Molecular Neuroscience · 15

PDF

The Serum Brain-Derived Neurotrophic Factor Increases in Serotonin Reuptake Inhibitor Responders Patients with First-Episode, Drug-Naïve Major Depression

2023 · Reiji Yoshimura, Naomichi Okamoto, et al. · Biomedicines · 12

PDF

Triple network connectivity changes in patients with major depressive disorder versus healthy controls via structural network imaging after electroconvulsive therapy treatment

2023 · Enkmurun Chibaatar, Keita Watanabe, et al. · Journal of Affective Disorders · 6

Comparison of Serum Metabolomics Pathways and Patterns between Patients with Major Depressive Disorder with and without Type 2 Diabetes Mellitus: An Exploratory Study

2023 · Naomichi Okamoto, Takashi Hoshikawa, et al. · Journal of Integrative Neuroscience · 6

PDF

Estimation of subjective quality of life in schizophrenic patients using speech features

2023 · Yuko Shibata, John Noel Victorino, et al. · Frontiers in Rehabilitation Sciences · 4

PDF

Gyrification patterns in first-episode, drug-naïve major depression: Associations with plasma levels of brain-derived neurotrophic factor and psychiatric symptoms

2023 · Tomoya Natsuyama, Naomichi Okamoto, et al. · Frontiers in Psychiatry · 4

PDF

The Molecular Mechanism of Exercise for Treatment of Patients with Major Depression: A Preliminary Report on the Dynamics of Metabolites of Nitric Oxide and Catecholamines

2022 · Atsuko Ikenouchi, Naomichi Okamoto, et al. · Journal of Integrative Neuroscience · 4

PDF

Volume of Amygdala Subregions and Plasma Levels of Brain-Derived Neurotrophic Factor and Cortisol in Patients with s/s Genotype of Serotonin Transporter Gene Polymorphism of First-Episode and Drug-Naive Major Depressive Disorder: An Exploratory Study

2022 · Naomichi Okamoto, Keita Watanabe, et al. · Neurology International · 4

PDF

Evaluating Apelin as a Potential Biomarker in Major Depressive Disorder: Its Correlation with Clinical Symptomatology

2024 · Enkhmurun Chibaatar, Rintarou Fujii, et al. · International Journal of Molecular Sciences · 3

PDF

Prolonged delirium caused by lithium poisoning in an endometrial cancer patient at advanced stage: A case report

2023 · Tomoya Natsuyama, Naomichi Okamoto, et al. · Clinical Case Reports · 3

PDF

Associations of Vocal Features, Psychiatric Symptoms, and Cognitive Functions in Schizophrenia

2025 · Tomoya Natsuyama, Enkhmurun Chibaatar, et al. · Neuropsychiatric Disease and Treatment · 2

PDF

Corrigendum: Estimation of subjective quality of life in schizophrenic patients using speech features

2023 · Yuko Shibata, John Noel Victorino, et al. · Frontiers in Rehabilitation Sciences · 1

PDF

Volumetric Assessment of Individual Thalamic Nuclei in Patients With Drug-naï Ve, First-episode Major Depressive Disorder

2025 · *Enkhmurun Chibaatar, Keita Watanabe, et al. · The International Journal of Neuropsychopharmacology

Prolonged delirium caused by lithium poisoning in a cancer patient at progressive stage: A case report

2022 · Tomoya Natsuyama, Naomichi Okamoto, et al.

PDF

Comparison of Serum Metabolomics Patterns between Healthy Individuals and Patients with Major Depression with and Without Type 2 Diabetes Mellitus: A Preliminary Study

2022 · Naomichi Okamoto, Takahi Hoshikawa, et al. · SSRN Electronic Journal

Associations of Vocal Features, Psychiatric Symptoms, and Cognitive Functions in Schizophrenia

· 夏山　知也 · Institutional Repositories DataBase (IRDB)

Works count: 19

Citation count: 97

H-index: 6

I10-index: 4