Excitatory Inhibitory Imbalance in Treatment-resistant Schizophrenia: TMS-EEG+MRS study
Project/Area Number |
18H02755
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Review Section |
Basic Section 52030:Psychiatry-related
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Research Institution | Keio University |
Principal Investigator |
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Co-Investigator(Kenkyū-buntansha) |
三村 將 慶應義塾大学, 医学部(信濃町), 教授 (00190728)
野田 賀大 慶應義塾大学, 医学部(信濃町), 特任准教授 (20807226)
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Project Period (FY) |
2018-04-01 – 2022-03-31
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Project Status |
Completed (Fiscal Year 2021)
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Budget Amount *help |
¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000)
Fiscal Year 2021: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2020: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2019: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2018: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
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Keywords | 治療抵抗性統合失調症 / グルタミン酸 / GABA / TMS-EEG / MRS / 統合失調症 / 興奮・抑制バランス / TMSーEEG / MRI / 興奮抑制バランス |
Outline of Final Research Achievements |
In schizophrenia, basal ganglia glutamate concentrations are elevated, glutamate and GABA concentrations in the middle cingulate gyrus are decreased, basal ganglia glutamate concentrations may decrease with disease progression and antipsychotic treatment, and middle cingulate gyrus GABA concentrations may increase with the onset of We found that the mid-cingulate gyrus GABA concentrations may increase with the onset of illness. Next, we reported increased glutamate concentrations in the middle cingulate gyrus in treatment-resistant schizophrenia. However, while significant differences were found between treatment-resistant schizophrenia and healthy subjects, no statistically significant differences were found between treatment-resistant schizophrenia and schizophrenia in remission, a finding that suggests heterogeneity of the condition within each group. The findings regarding elevated GABA concentrations in treatment-resistant schizophrenia are under review.
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Academic Significance and Societal Importance of the Research Achievements |
約3割の統合失調症患者に対して抗精神病薬は無効であり、その病態は従来のドパミン仮説では説明できない。新たな治療法の開発のために、興奮・抑制バランス異常仮説は治療抵抗例の病態を説明する仮説として注目を集めている。本研究でも治療抵抗例の脳内グルタミン酸神経系とGABA神経系の異常を明らかにした。この結果から、統合失調症の病態の異質性を、ドーパミン仮説と興奮・抑制不均衡仮説に基づいたディープ・フェノタイピングと多変量解析を用いたバイオタイピング、そのバイオタイプに対するバイオマーカーを用いたクローズド・ループ・ニューロモジュレーションの開発することが期待される。
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Report
(5 results)
Research Products
(48 results)
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[Journal Article] Frequency drift in MR spectroscopy at 3T2021
Author(s)
Hui SCN,Baltusis L, Barany DA, Dacko M, de la Fuente-Sandoval C, Heise KF, Honda S, Jacobson A, Miller JJ, Mirzakhanian H, Moreno-Ortega M, Mullins PG, Nakajima S
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Journal Title
NeuroImage
Volume: 241
Pages: 118430-118430
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Glutathione Levels and Glutathione-Glutamate Correlation in Patients With Treatment-Resistant Schizophrenia2021
Author(s)
Yusuke Iwata, Shinichiro Nakajima, Eric Plitman, Peter Truong, Ali Bani-Fatemi, Fernando Caravaggio, Julia Kim, Parita Shah, Wanna Mar, Sofia Chavez, Gary Remington, Philip Gerretsen, Vincenzo De Luca, Napapon Sailasuta, Ariel Graff-Guerrero
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Journal Title
Schizophrenia Bulletin Open
Volume: 2
Issue: 1
DOI
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Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Glutamatergic and GABAergic metabolite levels in schizophrenia-spectrum disorders: a meta-analysis of 1H-magnetic resonance spectroscopy studies2021
Author(s)
Nakahara T, Tsugawa S, Noda Y, Ueno F, Honda S, Kinjo M, Segawa H, Hondo N, Mori Y, Watanabe H, Nakahara K, Yoshida K, Wada M, Tarumi R, Iwata Y, Plitman E, Moriguchi S, de la Fuente-Sandoval C, Nakajima S.
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Journal Title
Molecular Psychiatry
Volume: 27
Issue: 1
Pages: 744-757
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Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Neuroanatomical profiles of treatment-resistance in patients with schizophrenia spectrum disorders2020
Author(s)
Kim J, Plitman E, Iwata Y, Nakajima S, Mar W, Patel R, Chavez S, Chung JK, Caravaggio F, Chakravarty MM, Remington G, Gerretsen P, Graff-Guerrero A
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Journal Title
Progress in Neuro-Psychopharmacology and Biological Psychiatry
Volume: 99
Pages: 109839-109839
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Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Visualization of AMPA receptors in living human brain with positron emission tomography.2020
Author(s)
Miyazaki T, Nakajima W, Hatano M, Shibata Y, Kuroki Y, Arisawa T, Mimura M, Yuzaki M, Kato H, Higuchi M, Uchida H, Takahashi T.
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Journal Title
Nature Medicine
Volume: 26
Issue: 2
Pages: 281-288
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Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Glutamatergic neurometabolites and cortical thickness in treatment-resistant schizophrenia: Implications for glutamate-mediated excitotoxicity2020
Author(s)
Shah P, Plitman E, Iwata Y, Kim J, Nakajima S, Chan N, Brown E, Caravaggio F, Torres E, Hahn M, Chakravarty M, Remington G, Gerretsen P, Graff-Guerrero A
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Journal Title
Journal of Psychiatric Research
Volume: 124
Pages: 151-158
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Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Increased blood COASY DNA methylation levels a potential biomarker for early pathology of Alzheimer’s disease2020
Author(s)
Kobayashi N, Shinagawa S, Niimura H, Kida H, Nagata T, Tagai K, Shimada K, Oka N, Shikimoto R, Noda Y, Nakajima S, Mimura M, Shigeta M, Kondo K
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Journal Title
Scientific Reports
Volume: 10
Issue: 1
Pages: 12217-12217
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Peer Reviewed / Open Access
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[Journal Article] White matter microstructural organizations in patients with severe treatment-resistant schizophrenia: A diffusion tensor imaging study2020
Author(s)
Ochi R, Noda Y, Tsuchimoto S, Tarumi R, Honda S, Matsushita K, Tsugawa S, Plitman E, Masuda F, Ogyu K, Wada M, Miyazaki T, Fujii S, Chakravarty MM, Graff-Guerrero A, Uchida H, Mimura M, Nakajima S
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Journal Title
Progress in Neuro-Psychopharmacology and Biological Psychiatry
Volume: 100
Pages: 109871-109871
DOI
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Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Early improvements of individual symptoms as a predictor of treatment response to asenapine in patients with schizophrenia2020
Author(s)
Ogyu K, Noda Y, Yoshida K, Kurose S, Masuda F, Mimura Y, Nishida H, Plitman E, Tarumi R, Tsugawa S, Wada M, Miyazaki T, Uchida H, Graff-Guerrero A, Mimura M, Nakajima S
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Journal Title
Neuropsychopharmacology Reports
Volume: 40
Issue: 2
Pages: 138-149
DOI
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Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Thalamic and striato-pallidal volumes in schizophrenia patients and individuals at risk for psychosis: A multi-atlas segmentation study.2020
Author(s)
Takahashi T, Tsugawa S, Nakajima S, Plitman E, Chakravarty MM, Masuda F, Wada M, Kurose S, Ochi R, Matsushita K, Sasabayashi D, Nakamura M, Nishikawa Y, Takayanagi Y, Nishiyama S, Higuchi Y, Mizukami Y, Furuichi A, Kido M, Hashimoto R, Noguchi K, Fujii S, Mimura M, Noda Y, Suzuki M.
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Journal Title
Schizophr Res.
Volume: 20
Pages: 268-275
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Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Resting-State Isolated Effective Connectivity of the Cingulate Cortex as a Neurophysiological Biomarker in Patients with Severe Treatment-Resistant Schizophrenia2020
Author(s)
Wada M, Nakajima S, Tarumi R, Masuda F, Miyazaki T, Tsugawa S, Ogyu K, Honda S, Matsushita K, Kikuchi Y, Fujii S, Blumberger DM, Daskalakis ZJ, Mimura M, Noda Y
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Journal Title
Journal of Personalized Medicine
Volume: 10
Issue: 3
Pages: 89-89
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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