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Sato S, Yu Z, Sakai M, Motoike IN, Saigusa D, Hirayama R, Kikuchi Y, Abe T, Kinoshita K, Koshiba S, Tomita H. Decreased β-hydroxybutyrate and ketogenic amino acid levels in depressed human adults. Eur J Neurosci 2023; 57:1018-1032. [PMID: 36750311 DOI: 10.1111/ejn.15931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 01/24/2023] [Accepted: 01/29/2023] [Indexed: 02/09/2023]
Abstract
β-hydroxybutyrate (BHB) is a major ketone body synthesized mainly in the liver mitochondria and is associated with stress and severity of depression in humans. It is known to alleviate depressive-like behaviors in mouse models of depression. In this study, plasma BHB, ketogenic and glucogenic amino acids selected from the Tohoku Medical Megabank Project Community-Based Cohort Study were analysed and measured using nuclear magnetic resonance spectroscopy. The Center for Epidemiologic Studies Depression Scale (CES-D) was utilized to select adult participants with depressive symptoms (CES-D ≥ 16; n = 5722) and control participants (CES-D < 16; n = 18,150). We observed significantly reduced plasma BHB, leucine, and tryptophan levels in participants with depressive symptoms. Using social defeat stress (SDS) mice models, we found that BHB levels in mice sera increased after acute SDS, but showed no change after chronic SDS, which differed from human plasma results. Furthermore, acute SDS increased mitochondrial BHB levels in the prefrontal cortex at 6 h. In contrast, chronic SDS significantly increased the amount of food intake but reduced hepatic mitochondrial BHB levels in mice. Moreover, gene transcriptions of voltage-dependent anion-selective channel 1 (Vdac1) and monocarboxylic acid transporter 1 (Mct1), major molecules relevant to mitochondrial biogenesis and BHB transporter, significantly decreased in the liver and PFC after chronic SDS exposure. These results provide evidence that hepatic and prefrontal mitochondrial biogenesis plays an important role in BHB synthesis under chronic stress and in humans with depressive symptoms.
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Affiliation(s)
- Shiho Sato
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Zhiqian Yu
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Mai Sakai
- Department of Psychiatric Nursing, Graduate School of Health Science, Tohoku University, Sendai, Japan
| | - Ikuko N Motoike
- Department of Integrative Genomics, Tohoku University Tohoku Medical Megabank Organization, Sendai, Japan.,Department of System Bioinformatics, Tohoku University Graduate School of Information Sciences, Tohoku University, Sendai, Japan
| | - Daisuke Saigusa
- Department of Integrative Genomics, Tohoku University Tohoku Medical Megabank Organization, Sendai, Japan.,Department of Medical Biochemistry, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Ryo Hirayama
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Yoshie Kikuchi
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Takaaki Abe
- Department of Biomedical Engineering Regenerative and Biomedical Engineering Medical Science, Graduate School of Biomedical Engineering, Tohoku University, Sendai, Japan
| | - Kengo Kinoshita
- Department of Integrative Genomics, Tohoku University Tohoku Medical Megabank Organization, Sendai, Japan.,Department of System Bioinformatics, Tohoku University Graduate School of Information Sciences, Tohoku University, Sendai, Japan
| | - Seizo Koshiba
- Department of Integrative Genomics, Tohoku University Tohoku Medical Megabank Organization, Sendai, Japan.,Department of Medical Biochemistry, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hiroaki Tomita
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan.,Department of Preventive Medicine and Epidemiology, Tohoku University Tohoku Medical Megabank Organization, Sendai, Japan.,Department of Psychiatry, Tohoku University Hospital, Sendai, Japan
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2
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Sakai M, Yu Z, Taniguchi M, Picotin R, Oyama N, Stellwagen D, Ono C, Kikuchi Y, Matsui K, Nakanishi M, Yoshii H, Furuyashiki T, Abe T, Tomita H. N-Acetylcysteine Suppresses Microglial Inflammation and Induces Mortality Dose-Dependently via Tumor Necrosis Factor-α Signaling. Int J Mol Sci 2023; 24:ijms24043798. [PMID: 36835209 PMCID: PMC9968039 DOI: 10.3390/ijms24043798] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 02/08/2023] [Accepted: 02/09/2023] [Indexed: 02/16/2023] Open
Abstract
N-acetylcysteine (NAC) is an antioxidant that prevents tumor necrosis factor (TNF)-α-induced cell death, but it also acts as a pro-oxidant, promoting reactive oxygen species independent apoptosis. Although there is plausible preclinical evidence for the use of NAC in the treatment of psychiatric disorders, deleterious side effects are still of concern. Microglia, key innate immune cells in the brain, play an important role in inflammation in psychiatric disorders. This study aimed to investigate the beneficial and deleterious effects of NAC on microglia and stress-induced behavior abnormalities in mice, and its association with microglial TNF-α and nitric oxide (NO) production. The microglial cell line MG6 was stimulated by Escherichia coli lipopolysaccharide (LPS) using NAC at varying concentrations for 24 h. NAC inhibited LPS-induced TNF-α and NO synthesis, whereas high concentrations (≥30 mM) caused MG6 mortality. Intraperitoneal injections of NAC did not ameliorate stress-induced behavioral abnormalities in mice, but high-doses induced microglial mortality. Furthermore, NAC-induced mortality was alleviated in microglial TNF-α-deficient mice and human primary M2 microglia. Our findings provide ample evidence for the use of NAC as a modulating agent of inflammation in the brain. The risk of side effects from NAC on TNF-α remains unclear and merits further mechanistic investigations.
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Grants
- 20dm0107099h0005, JP19dm0107099, JP18ek0109183, JP22gm0910012, and JP22wm0425001 Ministry of Education, Culture, Sports, Science and Technology of Japan, the Strategic Research Program for Brain Sciences, and the Japan Agency for Medical Research and Development
- KAKENHI 21390329, 16K07210, 18H05429, 21H04812, and 19K16372 Grant-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science and Technology of Japan
- No. 24116007 Grant-in-Aid for Scientific Research on Innovative Areas
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Affiliation(s)
- Mai Sakai
- Department of Psychiatric Nursing, Graduate School of Medicine, Tohoku University, Sendai 980-8575, Japan
| | - Zhiqian Yu
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai 980-8575, Japan
- Correspondence: ; Tel.: +81-22-717-7261
| | - Masayuki Taniguchi
- Division of Pharmacology, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
| | - Rosanne Picotin
- Medical Faculty, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Nanami Oyama
- Department of Psychiatric Nursing, Graduate School of Medicine, Tohoku University, Sendai 980-8575, Japan
| | - David Stellwagen
- Department of Neurology and Neurosurgery, The Research Institute of the McGill University Health Center, Montreal, QC H3G 1A4, Canada
| | - Chiaki Ono
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai 980-8575, Japan
| | - Yoshie Kikuchi
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai 980-8575, Japan
| | - Ko Matsui
- Super-network Brain Physiology, Graduate School of Life Sciences, Tohoku University, Sendai 980-8577, Japan
| | - Miharu Nakanishi
- Department of Psychiatric Nursing, Graduate School of Medicine, Tohoku University, Sendai 980-8575, Japan
| | - Hatsumi Yoshii
- Department of Psychiatric Nursing, Graduate School of Medicine, Tohoku University, Sendai 980-8575, Japan
| | - Tomoyuki Furuyashiki
- Division of Pharmacology, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
| | - Takaaki Abe
- Department of Biomedical Engineering Regenerative and Biomedical Engineering Medical Science, Graduate School of Biomedical Engineering, Tohoku University, Sendai 980-8575, Japan
| | - Hiroaki Tomita
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai 980-8575, Japan
- Department of Disaster Psychiatry, International Research Institute for Disaster Science, Tohoku University, Sendai 980-8573, Japan
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3
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Yu Z, Ueno K, Funayama R, Sakai M, Nariai N, Kojima K, Kikuchi Y, Li X, Ono C, Kanatani J, Ono J, Iwamoto K, Hashimoto K, Kinoshita K, Nakayama K, Nagasaki M, Tomita H. Sex-Specific Differences in the Transcriptome of the Human Dorsolateral Prefrontal Cortex in Schizophrenia. Mol Neurobiol 2023; 60:1083-1098. [PMID: 36414910 DOI: 10.1007/s12035-022-03109-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 10/20/2022] [Indexed: 11/24/2022]
Abstract
Schizophrenia presents clinical and biological differences between males and females. This study investigated transcriptional profiles in the dorsolateral prefrontal cortex (DLPFC) using postmortem data from the largest RNA-sequencing (RNA-seq) database on schizophrenic cases and controls. Data for 154 male and 113 female controls and 160 male and 93 female schizophrenic cases were obtained from the CommonMind Consortium. In the RNA-seq database, the principal component analysis showed that sex effects were small in schizophrenia. After we analyzed the impact of sex-specific differences on gene expression, the female group showed more significantly changed genes compared with the male group. Based on the gene ontology analysis, the female sex-specific genes that changed were overrepresented in the mitochondrion, ATP (phosphocreatine and adenosine triphosphate)-, and metal ion-binding relevant biological processes. An ingenuity pathway analysis revealed that the differentially expressed genes related to schizophrenia in the female group were involved in midbrain dopaminergic and γ-aminobutyric acid (GABA)-ergic neurons and microglia. We used methylated DNA-binding domain-sequencing analyses and microarray to investigate the DNA methylation that potentially impacts the sex differences in gene transcription using a maternal immune activation (MIA) murine model. Among the sex-specific positional genes related to schizophrenia in the PFC of female offspring from MIA, the changes in the methylation and transcriptional expression of loci ACSBG1 were validated in the females with schizophrenia in independent postmortem samples by real-time PCR and pyrosequencing. Our results reveal potential genetic risks in the DLPFC for the sex-dependent prevalence and symptomology of schizophrenia.
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Affiliation(s)
- Zhiqian Yu
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, 1-1 Seiryo-Machi, Aoba-Ku, Sendai, 980-8574, Japan.
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan.
| | - Kazuko Ueno
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Ryo Funayama
- Division of Cell Proliferation, United Centers for Advanced Research and Translational Medicine, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Mai Sakai
- Department of Psychiatric Nursing, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Naoki Nariai
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Kaname Kojima
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Yoshie Kikuchi
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, 1-1 Seiryo-Machi, Aoba-Ku, Sendai, 980-8574, Japan
| | - Xue Li
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, 1-1 Seiryo-Machi, Aoba-Ku, Sendai, 980-8574, Japan
| | - Chiaki Ono
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, 1-1 Seiryo-Machi, Aoba-Ku, Sendai, 980-8574, Japan
| | - Junpei Kanatani
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, 1-1 Seiryo-Machi, Aoba-Ku, Sendai, 980-8574, Japan
| | - Jiro Ono
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, 1-1 Seiryo-Machi, Aoba-Ku, Sendai, 980-8574, Japan
| | - Kazuya Iwamoto
- Department of Molecular Brain Science, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Kenji Hashimoto
- Division of Clinical Neuroscience, Center for Forensic Mental Health, Chiba University, Chiba, Japan
| | - Kengo Kinoshita
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Keiko Nakayama
- Division of Cell Proliferation, United Centers for Advanced Research and Translational Medicine, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Masao Nagasaki
- Human Biosciences Unit for the Top Global Course Center for the Promotion of Interdisciplinary Education and Research, Kyoto University, Kyoto, Japan
- Center for Genomic Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hiroaki Tomita
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, 1-1 Seiryo-Machi, Aoba-Ku, Sendai, 980-8574, Japan
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Department of Disaster Psychiatry, International Research Institute for Disaster Science, Tohoku University, Sendai, Japan
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4
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Yu Z, Sakai M, Fukushima H, Ono C, Kikuchi Y, Koyama R, Matsui K, Furuyashiki T, Kida S, Tomita H. Microarray dataset of gene transcription in mouse microglia and peripheral monocytes in contextual fear conditioning. Data Brief 2022; 46:108862. [PMID: 36624765 PMCID: PMC9823143 DOI: 10.1016/j.dib.2022.108862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/20/2022] [Accepted: 12/21/2022] [Indexed: 12/28/2022] Open
Abstract
The transcription profile of microglia related to fear conditioning remains unclear. Here, we used Illumina MouseWG-6v2 microarrays to investigate the gene transcription changes in microglia and peripheral monocytes after contextual fear conditioning of C57BL/6 J mice. Mice were trained with or without a single minimized footshock stimulation (0-s or 2-s, 0.4 mA) and re-exposed to the training context without footshock for three different durations 24 h later: 0 min (FS0), 3 min (FS3), or 30 min (FS30). Whole brain microglia and peripheral monocytes were prepared 24 h after re-exposure using a neural tissue dissociation kit, including non-footshock controls for two re-exposure durations (Con3 and Con30). The data can be valuable for researchers interested in glial cells and neurotransmission studies and are related to the research article "Contextual fear conditioning regulates synapse-related gene transcription in mouse microglia".
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Affiliation(s)
- Zhiqian Yu
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan,Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan,Corresponding author: Zhiqian Yu, Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan. @yuzhiqian2022
| | - Mai Sakai
- Department of Psychiatry Nursing, Tohoku University, Sendai, Japan
| | - Hotaka Fukushima
- Department of Bioscience, Faculty of Life Sciences, Tokyo University of Agriculture, Japan
| | - Chiaki Ono
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Yoshie Kikuchi
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Ryuta Koyama
- Laboratory of Chemical Pharmacology, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Japan
| | - Ko Matsui
- Super-network Brain Physiology, Tohoku University Graduate School of Life Sciences, Sendai, Japan
| | - Tomoyuki Furuyashiki
- Division of Pharmacology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Satoshi Kida
- Department of Bioscience, Faculty of Life Sciences, Tokyo University of Agriculture, Japan,Graduate School of Agriculture and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Hiroaki Tomita
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan,Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan,Department of Disaster Psychiatry, International Research Institute for Disaster Science, Tohoku University, Sendai, Japan
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5
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Yu Z, Matsukawa N, Saigusa D, Motoike IN, Ono C, Okamura Y, Onuma T, Takahashi Y, Sakai M, Kudo H, Obara T, Murakami K, Shirota M, Kikuchi S, Kobayashi N, Kikuchi Y, Sugawara J, Minegishi N, Ogishima S, Kinoshita K, Yamamoto M, Yaegashi N, Kuriyama S, Koshiba S, Tomita H. Plasma metabolic disturbances during pregnancy and postpartum in women with depression. iScience 2022; 25:105666. [PMID: 36505921 PMCID: PMC9732390 DOI: 10.1016/j.isci.2022.105666] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 08/17/2022] [Accepted: 11/21/2022] [Indexed: 11/27/2022] Open
Abstract
Examining plasma metabolic profiling during pregnancy and postpartum could help clinicians understand the risk factors for postpartum depression (PPD) development. This analysis targeted paired plasma metabolites in mid-late gestational and 1 month postpartum periods in women with (n = 209) or without (n = 222) PPD. Gas chromatogram-mass spectrometry was used to analyze plasma metabolites at these two time points. Among the 170 objected plasma metabolites, principal component analysis distinguished pregnancy and postpartum metabolites but failed to discriminate women with and without PPD. Compared to women without PPD, those with PPD exhibited 37 metabolites with disparate changes during pregnancy and the 1-month postpartum period and an enriched citrate cycle. Machine learning and multivariate statistical analysis identified two or three compounds that could be potential biomarkers for PPD prediction during pregnancy. Our findings suggest metabolic disturbances in women with depression and may help to elucidate metabolic processes associated with PPD development.
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Affiliation(s)
- Zhiqian Yu
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan,Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan,Corresponding author
| | - Naomi Matsukawa
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Daisuke Saigusa
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan,Laboratory of Biomedical and Analytical Sciences, Faculty of Pharma-Science, Teikyo University
| | - Ikuko N. Motoike
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan,Department of System Bioinformatics, Graduate School of Information Sciences, Tohoku University, Sendai, Japan
| | - Chiaki Ono
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Yasunobu Okamura
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan,Innovations in Next-Generation Medicine, Advanced Research Center, Tohoku University, Sendai, Japan
| | - Tomomi Onuma
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Yuta Takahashi
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Mai Sakai
- Department of Disaster Psychiatry, International Research Institute for Disaster Science, Tohoku University, Sendai, Japan
| | - Hisaaki Kudo
- Department of Biobank Life Science, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Taku Obara
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Keiko Murakami
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Matusyuki Shirota
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Saya Kikuchi
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Natsuko Kobayashi
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Yoshie Kikuchi
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Junichi Sugawara
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Naoko Minegishi
- Department of Biobank Life Science, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Soichi Ogishima
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Kengo Kinoshita
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan,Department of System Bioinformatics, Graduate School of Information Sciences, Tohoku University, Sendai, Japan
| | - Masayuki Yamamoto
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan,Department of Medical Biochemistry, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Nobuo Yaegashi
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan,Department of Gynecology and Obstetrics, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Shinichi Kuriyama
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan,Division of Disaster Public Health, International Research Institute for Disaster Science, Tohoku University, Sendai, Japan
| | - Seizo Koshiba
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan,Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Hiroaki Tomita
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan,Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan,Department of Disaster Psychiatry, International Research Institute for Disaster Science, Tohoku University, Sendai, Japan
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6
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Murakami M, Kato T, Yamaguchi H, Seto I, Takayama K, Tominaga T, Takagawa Y, Suzuki M, Machida M, Kikuchi Y. Proton Beam Re-Irradiation for In-Field Recurrent Non-Small Cell Lung Cancer after Radiotherapy. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Friedrich L, Kikuchi Y, Matsuda Y, Binder U, Skerra A. Efficient secretory production of proline/alanine/serine (PAS) biopolymers in Corynebacterium glutamicum yielding a monodisperse biological alternative to polyethylene glycol (PEG). Microb Cell Fact 2022; 21:227. [PMID: 36307781 PMCID: PMC9616612 DOI: 10.1186/s12934-022-01948-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 10/12/2022] [Indexed: 11/10/2022] Open
Abstract
Background PAS biopolymers are recombinant polypeptides comprising the small uncharged l-amino acids Pro, Ala and/or Ser which resemble the widely used poly-ethylene glycol (PEG) in terms of pronounced hydrophilicity. Likewise, their random chain behaviour in physiological solution results in a strongly expanded hydrodynamic volume. Thus, apart from their use as fusion partner for biopharmaceuticals to achieve prolonged half-life in vivo, PAS biopolymers appear attractive as substitute for PEG—or other poorly degradable chemical polymers—in many areas. As a prerequisite for the wide application of PAS biopolymers at affordable cost, we have established their highly efficient biotechnological production in Corynebacterium glutamicum serving as a well characterized bacterial host organism. Results Using the CspA signal sequence, we have secreted two representative PAS biopolymers as polypeptides with ~ 600 and ~ 1200 amino acid residues, respectively. Both PAS biopolymers were purified from the culture supernatant by means of a simple downstream process in a truly monodisperse state as evidenced by ESI–MS. Yields after purification were up to ≥ 4 g per liter culture, with potential for further increase by strain optimization as well as fermentation and bioprocess development. Beyond direct application as hydrocolloids or to exploit their rheological properties, such PAS biopolymers are suitable for site-specific chemical conjugation with pharmacologically active molecules via their unique terminal amino or carboxyl groups. To enable the specific activation of the carboxylate, without interference by the free amino group, we generated a blocked N-terminus for the PAS(1200) polypeptide simply by introducing an N-terminal Gln residue which, after processing of the signal peptide, was cyclised to a chemically inert pyroglutamyl group upon acid treatment. The fact that PAS biopolymers are genetically encoded offers further conjugation strategies via incorporation of amino acids with reactive side chains (e.g., Cys, Lys, Glu/Asp) at defined positions. Conclusions Our new PAS expression platform using Corynex® technology opens the way to applications of PASylation® technology in multiple areas such as the pharmaceutical industry, cosmetics and food technology.
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Affiliation(s)
- L Friedrich
- XL-protein GmbH, Lise-Meitner-Strasse 30, 85354, Freising, Germany
| | - Y Kikuchi
- Research Institute for Bioscience Products & Fine Chemicals, Ajinomoto Co., Inc., 1-1 Suzuki-cho, Kawasaki-ku, Kawasaki, 210-8681, Japan
| | - Y Matsuda
- Research Institute for Bioscience Products & Fine Chemicals, Ajinomoto Co., Inc., 1-1 Suzuki-cho, Kawasaki-ku, Kawasaki, 210-8681, Japan
| | - U Binder
- XL-protein GmbH, Lise-Meitner-Strasse 30, 85354, Freising, Germany
| | - A Skerra
- XL-protein GmbH, Lise-Meitner-Strasse 30, 85354, Freising, Germany. .,Lehrstuhl für Biologische Chemie, Technische Universität München, Emil-Erlenmeyer-Forum 5, 85354, Freising, Germany.
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8
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Yu Z, Sakai M, Fukushima H, Ono C, Kikuchi Y, Koyama R, Matsui K, Furuyashiki T, Kida S, Tomita H. Contextual fear conditioning regulates synapse-related gene transcription in mouse microglia. Brain Res Bull 2022; 189:57-68. [PMID: 35987296 DOI: 10.1016/j.brainresbull.2022.08.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 07/04/2022] [Accepted: 08/14/2022] [Indexed: 11/02/2022]
Abstract
Microglia have been suggested to be involved in the underlying mechanism of conditional fear memory formation by regulating inflammatory cytokines. However, the mechanism linking microglia and neuronal activity related to fear conditioning remains unclear. This study characterized the transcription profile of microglia in a fear memory conditional mouse model. Compared with those in control mice microglia, the most significantly induced genes were synapse-related, whereas immune-related genes were reduced due to fear memory consolidation. Whilst the increased expression of synapse-related genes was reversed after fear memory extinction, that of immunological genes was not, strongly suggesting a connection between microglia, neurons, and a dysregulated immune response following contextual fear conditioning. Furthermore, in the hippocampal microglia, we found that the expression of neurotransmitter release regulators, γ-aminobutyric acid (GABA) receptor GABRB3 and synapsin 1/2, increased under fear memory consolidation and restored (decreased) after extinction. In addition, compared with the transcription profile in peripheral monocytes, few overlapping genes were not enriched in biological processes. Taken together, the identified conditional fear stress-induced changes in mouse microglial transcription profiles suggest that microglia-neuron communication mediates contextual fear conditioning.
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Affiliation(s)
- Zhiqian Yu
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan; Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan.
| | - Mai Sakai
- Department of Psychiatry Nursing, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Hotaka Fukushima
- Department of Bioscience, Faculty of Life Sciences, Tokyo University of Agriculture, Tokyo, Japan
| | - Chiaki Ono
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Yoshie Kikuchi
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Ryuta Koyama
- Laboratory of Chemical Pharmacology, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Ko Matsui
- Super-network Brain Physiology, Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Tomoyuki Furuyashiki
- Division of Pharmacology, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Satoshi Kida
- Department of Bioscience, Faculty of Life Sciences, Tokyo University of Agriculture, Tokyo, Japan; Graduate School of Agriculture and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Hiroaki Tomita
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan; Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan; Department of Disaster Psychiatry, International Research Institute for Disaster Science, Tohoku University, Sendai, Japan
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9
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Takeuchi H, Tomita H, Taki Y, Kikuchi Y, Ono Tanaka C, Yu Z, Matsudaira I, Nouchi R, Imanishi T, Kawashima R. A psychiatric disorder risk polymorphism of ITIH3 is associated with multiple neuroimaging phenotypes in young healthy adults. Psychiatry Clin Neurosci 2022; 76:271-273. [PMID: 35261121 DOI: 10.1111/pcn.13347] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 02/26/2022] [Accepted: 03/03/2022] [Indexed: 11/27/2022]
Affiliation(s)
- Hikaru Takeuchi
- Division of Developmental Cognitive Neuroscience, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Hiroaki Tomita
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan.,Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan
| | - Yasuyuki Taki
- Division of Medical Neuroimaging Analysis, Department of Community Medical Supports, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan.,Department of Radiology and Nuclear Medicine, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Yoshie Kikuchi
- Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan
| | - Chiaki Ono Tanaka
- Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan
| | - Zhiqian Yu
- Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan
| | - Izumi Matsudaira
- Department of Radiology and Nuclear Medicine, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Rui Nouchi
- Department of Cognitive Health Science, IDAC, Tohoku University, Sendai, Japan.,Smart Aging Research Center, Tohoku Univeristy, Tohoku University, Sendai, Japan
| | - Tadashi Imanishi
- Biomedical Informatics Laboratory, Department of Molecular Life Science, Tokai University School of Medicine, Tokyo, Japan
| | - Ryuta Kawashima
- Division of Developmental Cognitive Neuroscience, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan.,Department of Cognitive Health Science, IDAC, Tohoku University, Sendai, Japan.,Department of Ubiquitous Sensing, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
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10
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Kitabatake T, Takayama K, Tominaga T, Hayashi Y, Seto I, Yamaguchi H, Suzuki M, Wada H, Kikuchi Y, Murakami M, Mitsudo K. Treatment outcomes of proton beam therapy combined with retrograde intra-arterial infusion chemotherapy for locally advanced oral cancer in the elderly. Int J Oral Maxillofac Surg 2022; 51:1264-1272. [DOI: 10.1016/j.ijom.2022.01.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 11/04/2021] [Accepted: 01/20/2022] [Indexed: 11/16/2022]
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11
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Takeuchi H, Kimura R, Tomita H, Taki Y, Kikuchi Y, Ono C, Yu Z, Matsudaira I, Nouchi R, Yokoyama R, Kotozaki Y, Nakagawa S, Hanawa S, Iizuka K, Sekiguchi A, Araki T, Miyauchi CM, Ikeda S, Sakaki K, Dos S Kawata KH, Nozawa T, Yokota S, Magistro D, Imanishi T, Kawashima R. Polygenic risk score for bipolar disorder associates with divergent thinking and brain structures in the prefrontal cortex. Hum Brain Mapp 2021; 42:6028-6037. [PMID: 34587347 PMCID: PMC8596941 DOI: 10.1002/hbm.25667] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 08/26/2021] [Accepted: 09/13/2021] [Indexed: 11/11/2022] Open
Abstract
It has been hypothesized that a higher genetic risk of bipolar disorder (BD) is associated with greater creativity. Given the clinical importance of bipolar disorder and the importance of creativity to human society and cultural development, it is essential to reveal their associations and the neural basis of the genetic risk of bipolar disorder to gain insight into its etiology. However, despite the previous demonstration of the associations of polygenic risk score (PRS) of BD and creative jobs, the associations of BD‐PRS and creativity measured by the divergent thinking (CMDT) and regional gray matter volume (rGMV) as well as regional white matter volume (rWMV) have not been investigated. Using psychological analyses and whole‐brain voxel‐by‐voxel analyses, we examined these potential associations in 1558 young, typically developing adult students. After adjusting for confounding variables and multiple comparisons, a greater BD‐PRS was associated with a greater total CMDT fluency score, and a significant relationship was found in fluency subscores. A greater BD‐PRS was also associated with lower total mood disturbance. Neuroimaging analyses revealed that the BD‐PRS was associated with greater rGMV in the right inferior frontal gyrus, which is a consistently affected area in BD, as well as a greater rWMV in the left middle frontal gyrus, which has been suggested to play a central role in the increased creativity associated with the risk of BD with creativity. These findings suggest a relationship between the genetic risk of BD and CMDT and prefrontal cortical structures among young educated individuals.
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Affiliation(s)
- Hikaru Takeuchi
- Division of Developmental Cognitive Neuroscience, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Ryosuke Kimura
- Department of Human Biology and Anatomy, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - Hiroaki Tomita
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan.,Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan
| | - Yasuyuki Taki
- Division of Medical Neuroimaging Analysis, Department of Community Medical Supports, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan.,Department of Radiology and Nuclear Medicine, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Yoshie Kikuchi
- Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan
| | - Chiaki Ono
- Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan
| | - Zhiqian Yu
- Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan
| | | | - Rui Nouchi
- Department of Advanced Brain Science, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan.,Creative Interdisciplinary Research Division, Frontier Research Institute for Interdisciplinary Science, Tohoku University, Sendai, Japan.,Human and Social Response Research Division, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan
| | | | - Yuka Kotozaki
- Division of Clinical research, Medical-Industry Translational Research Center, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Seishu Nakagawa
- Department of Human Brain Science, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan.,Division of Psychiatry, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Sugiko Hanawa
- Department of Human Brain Science, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Kunio Iizuka
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Atsushi Sekiguchi
- Division of Medical Neuroimaging Analysis, Department of Community Medical Supports, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan.,Department of Behavioral Medicine, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan
| | | | - Carlos Makoto Miyauchi
- Department of Advanced Brain Science, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Shigeyuki Ikeda
- Department of Ubiquitous Sensing, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Kohei Sakaki
- Department of Advanced Brain Science, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | | | - Takayuki Nozawa
- Research Center Institute for the Earth Inclusive Sensing Empathizing with Silent Voices, Tokyo Institute of Technology, Tokyo, Japan
| | - Susumu Yokota
- Faculty of Arts and Science, Kyushu University, Fukuoka, Japan
| | - Daniele Magistro
- Department of Sport Science, School of Science and Technology, Nottingham Trent University, Nottingham, UK
| | - Tadashi Imanishi
- Biomedical Informatics Laboratory, Department of Molecular Life Science, Tokai University School of Medicine, Isehara, Kanagawa, Japan
| | - Ryuta Kawashima
- Division of Developmental Cognitive Neuroscience, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan.,Department of Advanced Brain Science, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan.,Department of Ubiquitous Sensing, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
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12
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Okuda T, Nishimura Y, Nishioka K, Kishimoto S, Kikuchi Y, Nakamura T. A 5-kV pulse generator with a 100-kV/µs slew rate based on series-connected 1700-V SiC MOSFETs for electrical insulation tests. Rev Sci Instrum 2021; 92:114705. [PMID: 34852512 DOI: 10.1063/5.0058083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 10/20/2021] [Indexed: 06/13/2023]
Abstract
This study demonstrates a high-slew-rate 5-kV pulse generator for electrical insulation tests. Electrical equipment, such as electrical actuators and traction drive motors, are exposed to severe electrical stress because recent switching inverters have high-frequency outputs with high supply voltages using wide-bandgap power devices. For an advanced electrical insulation test, a high-voltage pulse generator is required with a high slew rate; however, such generators suffer from large switching noise, followed by measurement noise, such as ground voltage fluctuations and radiation noise, hindering the detection of partial discharge (PD) phenomena. In this study, we propose a 5-kV pulse generator based on series-connected 1700-V silicon carbide (SiC) metal-oxide-semiconductor field-effect transistors (MOSFETs). Four 1700-V SiC MOSFETs are connected in series as a 5-kV SiC switching module, constituting a half-bridge configuration for the pulse generator. The obtained switching waveforms exhibit fast rise times of 48 ns under 5 kV and 6.2 ns under 400 V with a low voltage overshoot and ringing owing to superior device characteristics and reduced parasitic inductances. Because of the low switching noise, we detect a clear PD signal with a 1500-V pulse when using the fabricated pulse generator for a PD test of a twisted pair. The proposed pulse generator uses a hard switching configuration such that the pulse generator can vary the pulse width from 150 ns to DC and increase the switching pulse cycle beyond 1 MHz by changing the control signals of the SiC MOSFETs.
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Affiliation(s)
- T Okuda
- Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan
| | - Y Nishimura
- Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan
| | - K Nishioka
- Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan
| | - S Kishimoto
- Graduate School of Engineering, University of Hyogo, Hyogo 671-2280, Japan
| | - Y Kikuchi
- Graduate School of Engineering, University of Hyogo, Hyogo 671-2280, Japan
| | - T Nakamura
- Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan
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13
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Nakamura M, Ishiguro A, Dazai M, Kawamoto Y, Yuki S, Sogabe S, Hosokawa A, Sawada K, Muto O, Umemoto K, Izawa N, Nakashima K, Yagisawa M, Kajiura S, Mitsuhashi Y, Ando T, Sunakawa Y, Kikuchi Y, Yamanaka T, Komatsu Y. 499P The safety and efficacy of edoxaban for the cancer-associated asymptomatic venous thromboembolism in Japanese gastrointestinal cancer patients receiving chemotherapy (ExCAVE study). Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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14
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Komatsu H, Takeuchi H, Ono C, Yu Z, Kikuchi Y, Kakuto Y, Funakoshi S, Ono T, Kawashima R, Taki Y, Tomita H. Association Between OLIG2 Gene SNP rs1059004 and Negative Self-Schema Constructing Trait Factors Underlying Susceptibility to Depression. Front Psychiatry 2021; 12:631475. [PMID: 33762978 PMCID: PMC7983671 DOI: 10.3389/fpsyt.2021.631475] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Accepted: 02/05/2021] [Indexed: 11/23/2022] Open
Abstract
Recent evidence has indicated that the disruption of oligodendrocytes may be involved in the pathogenesis of depression. Genetic factors are likely to affect trait factors, such as characteristics, rather than state factors, such as depressive symptoms. Previously, a negative self-schema had been proposed as the major characteristic of constructing trait factors underlying susceptibility to depression. Thus, the association between a negative self-schema and the functional single nucleotide polymorphism (SNP) rs1059004 in the OLIG2 gene, which influences OLIG2 gene expression, white matter integrity, and cerebral blood flow, was evaluated. A total of 546 healthy subjects were subjected to genotype and psychological evaluation using the Beck Depression Inventory-II (BDI-II) and the Brief Core Schema Scale (BCSS). The rs1059004 SNP was found to be associated with the self-schema subscales of the BCSS and scores on the BDI-II in an allele dose-dependent manner, and to have a predictive impact on depressive symptoms via a negative-self schema. The results suggest the involvement of a genetic factor regulating oligodendrocyte function in generating a negative-self schema as a trait factor underlying susceptibility to depression.
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Affiliation(s)
- Hiroshi Komatsu
- Department of Psychiatry, Tohoku University Hospital, Sendai, Japan.,Miyagi Psychiatric Center, Natori, Japan
| | - Hikaru Takeuchi
- Division of Developmental Cognitive Neuroscience, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Chiaki Ono
- Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan
| | - Zhiqian Yu
- Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan
| | - Yoshie Kikuchi
- Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan
| | | | - Shunichi Funakoshi
- Miyagi Psychiatric Center, Natori, Japan.,Department of Community Psychiatry, Tohoku University, Sendai, Japan
| | | | - Ryuta Kawashima
- Division of Developmental Cognitive Neuroscience, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan.,Smart Ageing International Research Center, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Yasuyuki Taki
- Division of Developmental Cognitive Neuroscience, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan.,Department of Nuclear Medicine and Radiology, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan.,Division of Medical Neuroimaging Analysis, Department of Community Medical Supports, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Hiroaki Tomita
- Department of Psychiatry, Tohoku University Hospital, Sendai, Japan.,Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan.,Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan.,Department of Disaster Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan.,Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan
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15
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Kubota Y, Corsi A, Authelet G, Baba H, Caesar C, Calvet D, Delbart A, Dozono M, Feng J, Flavigny F, Gheller JM, Gibelin J, Giganon A, Gillibert A, Hasegawa K, Isobe T, Kanaya Y, Kawakami S, Kim D, Kikuchi Y, Kiyokawa Y, Kobayashi M, Kobayashi N, Kobayashi T, Kondo Y, Korkulu Z, Koyama S, Lapoux V, Maeda Y, Marqués FM, Motobayashi T, Miyazaki T, Nakamura T, Nakatsuka N, Nishio Y, Obertelli A, Ogata K, Ohkura A, Orr NA, Ota S, Otsu H, Ozaki T, Panin V, Paschalis S, Pollacco EC, Reichert S, Roussé JY, Saito AT, Sakaguchi S, Sako M, Santamaria C, Sasano M, Sato H, Shikata M, Shimizu Y, Shindo Y, Stuhl L, Sumikama T, Sun YL, Tabata M, Togano Y, Tsubota J, Yang ZH, Yasuda J, Yoneda K, Zenihiro J, Uesaka T. Surface Localization of the Dineutron in ^{11}Li. Phys Rev Lett 2020; 125:252501. [PMID: 33416401 DOI: 10.1103/physrevlett.125.252501] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 06/28/2020] [Accepted: 10/08/2020] [Indexed: 06/12/2023]
Abstract
The formation of a dineutron in the ^{11}Li nucleus is found to be localized to the surface region. The experiment measured the intrinsic momentum of the struck neutron in ^{11}Li via the (p,pn) knockout reaction at 246 MeV/nucleon. The correlation angle between the two neutrons is, for the first time, measured as a function of the intrinsic neutron momentum. A comparison with reaction calculations reveals the localization of the dineutron at r∼3.6 fm. The results also support the density dependence of dineutron formation as deduced from Hartree-Fock-Bogoliubov calculations for nuclear matter.
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Affiliation(s)
- Y Kubota
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- Center for Nuclear Study, University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
| | - A Corsi
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - G Authelet
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - H Baba
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - C Caesar
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - D Calvet
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - A Delbart
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - M Dozono
- Center for Nuclear Study, University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
| | - J Feng
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - F Flavigny
- IPN Orsay, Université Paris Sud, IN2P3-CNRS, F-91406 Orsay Cedex, France
| | - J-M Gheller
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - J Gibelin
- LPC Caen, ENSICAEN, Université de Caen Normandie, CNRS/IN2P3, F-14050 Caen Cedex, France
| | - A Giganon
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - A Gillibert
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - K Hasegawa
- Department of Physics, Tohoku University, Aramaki Aza-Aoba 6-3, Aoba, Sendai, Miyagi 980-8578, Japan
| | - T Isobe
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - Y Kanaya
- Department of Applied Physics, University of Miyazaki, Gakuen-Kibanadai-Nishi 1-1, Miyazaki 889-2192, Japan
| | - S Kawakami
- Department of Applied Physics, University of Miyazaki, Gakuen-Kibanadai-Nishi 1-1, Miyazaki 889-2192, Japan
| | - D Kim
- Center for Exotic Nuclear Studies, Institute for Basic Science (IBS), Daejeon 34126, Korea
| | - Y Kikuchi
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- Tokuyama College, National Institute of Technology, Yamaguchi 745-8585, Japan
- Department of Physics, Osaka City University, Osaka 558-8585, Japan
| | - Y Kiyokawa
- Center for Nuclear Study, University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
| | - M Kobayashi
- Center for Nuclear Study, University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
| | - N Kobayashi
- Department of Physics, University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
| | - T Kobayashi
- Department of Physics, Tohoku University, Aramaki Aza-Aoba 6-3, Aoba, Sendai, Miyagi 980-8578, Japan
| | - Y Kondo
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - Z Korkulu
- Center for Exotic Nuclear Studies, Institute for Basic Science (IBS), Daejeon 34126, Korea
- Institute for Nuclear Research, Hungarian Academy of Sciences (MTA Atomki), P.O. Box 51, H-4001 Debrecen, Hungary
| | - S Koyama
- Department of Physics, University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
| | - V Lapoux
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - Y Maeda
- Department of Applied Physics, University of Miyazaki, Gakuen-Kibanadai-Nishi 1-1, Miyazaki 889-2192, Japan
| | - F M Marqués
- LPC Caen, ENSICAEN, Université de Caen Normandie, CNRS/IN2P3, F-14050 Caen Cedex, France
| | - T Motobayashi
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - T Miyazaki
- Department of Physics, University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
| | - T Nakamura
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - N Nakatsuka
- Department of Physics, Kyoto University, Kitashirakawa, Sakyo, Kyoto 606-8502, Japan
| | - Y Nishio
- Department of Physics, Kyushu University, Nishi, Fukuoka 819-0395, Japan
| | - A Obertelli
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - K Ogata
- Department of Physics, Osaka City University, Osaka 558-8585, Japan
- Research Center for Nuclear Physics, Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - A Ohkura
- Department of Physics, Kyushu University, Nishi, Fukuoka 819-0395, Japan
| | - N A Orr
- LPC Caen, ENSICAEN, Université de Caen Normandie, CNRS/IN2P3, F-14050 Caen Cedex, France
| | - S Ota
- Center for Nuclear Study, University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
| | - H Otsu
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - T Ozaki
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - V Panin
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - S Paschalis
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - E C Pollacco
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - S Reichert
- Physik Department, Technische Universität München, D-85748 Garching, Germany
| | - J-Y Roussé
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - A T Saito
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - S Sakaguchi
- Department of Physics, Kyushu University, Nishi, Fukuoka 819-0395, Japan
| | - M Sako
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - C Santamaria
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - M Sasano
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - H Sato
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - M Shikata
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - Y Shimizu
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - Y Shindo
- Department of Physics, Kyushu University, Nishi, Fukuoka 819-0395, Japan
| | - L Stuhl
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- Center for Exotic Nuclear Studies, Institute for Basic Science (IBS), Daejeon 34126, Korea
| | - T Sumikama
- Department of Physics, Tohoku University, Aramaki Aza-Aoba 6-3, Aoba, Sendai, Miyagi 980-8578, Japan
| | - Y L Sun
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - M Tabata
- Department of Physics, Kyushu University, Nishi, Fukuoka 819-0395, Japan
| | - Y Togano
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - J Tsubota
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - Z H Yang
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - J Yasuda
- Department of Physics, Kyushu University, Nishi, Fukuoka 819-0395, Japan
| | - K Yoneda
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - J Zenihiro
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - T Uesaka
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- Cluster for Pioneering Research, RIKEN, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
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16
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Tokumaru S, Ohnishi K, Harada H, Wada H, Nakamura N, Arimura T, Iwata H, Sato Y, Tamamura H, Ogino H, Ogino T, Akimoto T, Okimoto T, Kikuchi Y, Murayama S, Sakurai H. Clinical Outcomes of Proton Beam Therapy for Stage I Lung Cancer in Patients with Interstitial Pneumonia: A Multi-Institutional Retrospective Study in Japan. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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17
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Nishimiya K, Suda A, Hao K, Takahashi J, Matsumoto Y, Satoh K, Sugisawa J, Shindo T, Godo S, Kikuchi Y, Shiroto T, Shimokawa H. Clinical implications of coronary artery morphology of patients with ischemia and non-obstructive coronary artery disease (INOCA) -An intracoronary OCT study-. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Introduction
Ischemia and non-obstructive coronary artery disease (INOCA), including microvascular spasm (MVS) and epicardial spasm, has recently attracted much attention, for which in vivo imaging evaluation for coronary artery morphology is warranted for better understanding of this disorder. Besides the improved diagnostic accuracy of optical coherence tomography (OCT) for coronary plaques, we have recently demonstrated its capability for in vivo visualization of coronary adventitial vasa vasorum (VV) and the enhanced VV formation in patients with epicardial spasm.
Purpose
We aimed to examine OCT-delineated morphological characteristics in patients with INOCA in vivo.
Methods
A total of 335 consecutive INOCA patients, who underwent pharmacological spasm provocation tests, lactate sampling, and OCT imaging over the entire length of the left anterior descending (LAD) coronary arteries, were enrolled at our institute over 68 months from April 2013. They were classified into 4 groups; control with non-cardiac chest pain, MVS, diffuse spasm (DS), or focal spasm (FS) (Fig. 1A). MVS was diagnosed when negative lactate extraction ratio (coronary orifice < coronary sinus) was detected despite the absence of epicardial spasm during the spasm provocation test. DS was defined as epicardial spasm induced in more than 2 coronary segments in LAD, and FS as epicardial spasm in one segment. Quantitative analyses for adventitial inflammation and atherosclerotic changes were performed by calculating VV density and %area stenosis (AS) on OCT (Fig. 1B, E). Furthermore, index of microcirculatory resistance (IMR), a marker of microvascular disorder with a cut-off value of ≥25, was measured during intravenous infusion of adenosine, which was then correlated with VV densities in the MVS and DS groups. Coronary plaque with a necrotic core was classified as fibroatheroma (FA), and the number of OCT frames with internal VV (IVV) in the atheroma was counted.
Results
VV density was significantly higher in MVS as compared with the controls (Fig. 1B). DS was most prevalent in INOCA (Fig. 1A) with highest VV density (Fig. 1B). Patients with IMR≥25 were predominantly distributed with a gradual increase in the MVS, DS, and FS groups, but none in the controls (Fig. 1C). Importantly, there was a significant positive correlation between VV densities and IMR in the MVS and DS groups (Fig. 1D). In addition, FS had the largest plaque size and showed the highest prevalence of FA and IVV (Fig. 1E–G).
Conclusions
These results indicate that MVS and DS are characterized by vasomotion abnormalities associated with adventitial inflammation and microvascular disorder, while FS by vulnerable atherosclerotic phenotype, suggesting that OCT may be useful for screening high-risk populations in INOCA.
Figure 1
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- K Nishimiya
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - A Suda
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - K Hao
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - J Takahashi
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Y Matsumoto
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - K Satoh
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - J Sugisawa
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - T Shindo
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - S Godo
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Y Kikuchi
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - T Shiroto
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - H Shimokawa
- Tohoku University Graduate School of Medicine, Sendai, Japan
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18
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Takeuchi H, Tomita H, Browne R, Taki Y, Kikuchi Y, Ono C, Yu Z, Nouchi R, Yokoyama R, Kotozaki Y, Nakagawa S, Sekiguchi A, Iizuka K, Hanawa S, Araki T, Miyauchi CM, Sakaki K, Nozawa T, Ikeda S, Yokota S, Magistro D, Sassa Y, Kawashima R. Sex-Dependent Effects of the APOE ɛ4 Allele on Behavioral Traits and White Matter Structures in Young Adults. Cereb Cortex 2020; 31:672-680. [PMID: 32954402 PMCID: PMC7727389 DOI: 10.1093/cercor/bhaa251] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 08/08/2020] [Accepted: 08/09/2020] [Indexed: 12/13/2022] Open
Abstract
The APOE ɛ4 allele is associated with a risk of Alzheimer’s disease in the elderly, with the association being pronounced in females. Conversely, findings of the effects of the APOE ɛ4 allele in young adults are mixed. Here, we investigated the sex–genotype interaction effects of the APOE ɛ4 allele on cognitive functions as well as brain structures among 1258 young adults. After adjusting for multiple comparisons, there were significant effects of the interaction between sex and the number of APOE ɛ4 allele on some speed tasks (e.g., simple processing speed tasks and the reverse Stroop task) as well as on regional white matter volume (rWMV). The observed sex–genotype interaction conferred better cognitive performance and greater rWMV in the anterior frontal and precentral white matter areas in females having more APOE ɛ4 alleles and reduced rWMV in the same areas in male having more APOE ɛ4 alleles. These findings support the long-debated antagonistic pleiotropic effects of the APOE ɛ4 allele in females.
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Affiliation(s)
- Hikaru Takeuchi
- Division of Developmental Cognitive Neuroscience, Institute of Development, Aging and Cancer, Tohoku University, Sendai 980-8575, Japan
| | - Hiroaki Tomita
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai 980-8575, Japan.,Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai 980-8575, Japan
| | - Ryan Browne
- Department of Advanced Brain Science, Institute of Development, Aging and Cancer, Tohoku University, Sendai 980-8575, Japan
| | - Yasuyuki Taki
- Division of Medical Neuroimaging Analysis, Department of Community Medical Supports, Tohoku Medical Megabank Organization, Tohoku University, Sendai 980-8575, Japan.,Department of Radiology and Nuclear Medicine, Institute of Development, Aging and Cancer, Tohoku University, Sendai 980-8575, Japan
| | - Yoshie Kikuchi
- Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai 980-8575, Japan
| | - Chiaki Ono
- Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai 980-8575, Japan
| | - Zhiqian Yu
- Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai 980-8575, Japan
| | - Rui Nouchi
- Department of Advanced Brain Science, Institute of Development, Aging and Cancer, Tohoku University, Sendai 980-8575, Japan.,Department of Cognitive Health Science, IDAC, Tohoku University, Sendai 980-8575, Japan.,Smart Aging Research Center, Tohoku University, Sendai 980-8575, Japan
| | | | - Yuka Kotozaki
- Division of Clinical research, Medical-Industry Translational Research Center, Fukushima Medical University School of Medicine, Fukushima 960-1925, Japan
| | - Seishu Nakagawa
- Department of Human Brain Science, Institute of Development, Aging and Cancer, Tohoku University, Sendai 980-8575, Japan.,Division of Psychiatry, Tohoku Medical and Pharmaceutical University, Sendai 983-8536, Japan
| | - Atsushi Sekiguchi
- Division of Medical Neuroimaging Analysis, Department of Community Medical Supports, Tohoku Medical Megabank Organization, Tohoku University, Sendai 980-8575, Japan.,Department of Behavioral Medicine, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo 187-8553, Japan
| | - Kunio Iizuka
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai 980-8575, Japan
| | - Sugiko Hanawa
- Department of Human Brain Science, Institute of Development, Aging and Cancer, Tohoku University, Sendai 980-8575, Japan
| | - Tsuyoshi Araki
- ADVANTAGE Risk Management Co., Ltd. , Tokyo 153-0051, Japan
| | - Carlos Makoto Miyauchi
- Department of Advanced Brain Science, Institute of Development, Aging and Cancer, Tohoku University, Sendai 980-8575, Japan
| | - Kohei Sakaki
- Department of Advanced Brain Science, Institute of Development, Aging and Cancer, Tohoku University, Sendai 980-8575, Japan
| | - Takayuki Nozawa
- Research Institute for the Earth Inclusive Sensing, Tokyo Institute of Technology, Tokyo 152-8550, Japan
| | - Shigeyuki Ikeda
- Department of Ubiquitous Sensing, Institute of Development, Aging and Cancer, Tohoku University, Sendai 980-8575, Japan
| | - Susumu Yokota
- Division for Experimental Natural Science, Faculty of Arts and Science, Kyushu University, Fukuoka 819-0385, Japan
| | - Daniele Magistro
- Department of Sport Science, School of Science and Technology, Nottingham Trent University, Nottingham NG11 8NS, UK
| | - Yuko Sassa
- Division of Developmental Cognitive Neuroscience, Institute of Development, Aging and Cancer, Tohoku University, Sendai 980-8575, Japan
| | - Ryuta Kawashima
- Division of Developmental Cognitive Neuroscience, Institute of Development, Aging and Cancer, Tohoku University, Sendai 980-8575, Japan.,Department of Advanced Brain Science, Institute of Development, Aging and Cancer, Tohoku University, Sendai 980-8575, Japan.,Department of Ubiquitous Sensing, Institute of Development, Aging and Cancer, Tohoku University, Sendai 980-8575, Japan
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19
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Kondo T, Tanaka M, Yamataka K, Kikuchi Y, Mihara K, Shito M. Laparoscopic reversal of Hartmann's procedure using the reverse transrectal stapling technique. Tech Coloproctol 2020; 24:1309-1310. [PMID: 32683597 DOI: 10.1007/s10151-020-02302-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 07/12/2020] [Indexed: 10/23/2022]
Affiliation(s)
- T Kondo
- Department of Surgery, Kawasaki Municipal Hospital, 12-1 Shinkawadori Kawasaki-ku, Kawasaki, Kanagawa, 210-0013, Japan.
| | - M Tanaka
- Department of Surgery, Kawasaki Municipal Hospital, 12-1 Shinkawadori Kawasaki-ku, Kawasaki, Kanagawa, 210-0013, Japan. .,Department of Surgery, Keio University School of Medicine, Tokyo, Japan.
| | - K Yamataka
- Department of Surgery, Kawasaki Municipal Hospital, 12-1 Shinkawadori Kawasaki-ku, Kawasaki, Kanagawa, 210-0013, Japan
| | - Y Kikuchi
- Department of Surgery, Kawasaki Municipal Hospital, 12-1 Shinkawadori Kawasaki-ku, Kawasaki, Kanagawa, 210-0013, Japan
| | - K Mihara
- Department of Surgery, Kawasaki Municipal Hospital, 12-1 Shinkawadori Kawasaki-ku, Kawasaki, Kanagawa, 210-0013, Japan
| | - M Shito
- Department of Surgery, Kawasaki Municipal Hospital, 12-1 Shinkawadori Kawasaki-ku, Kawasaki, Kanagawa, 210-0013, Japan
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20
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Komatsu H, Takeuchi H, Kikuchi Y, Ono C, Yu Z, Iizuka K, Takano Y, Kakuto Y, Funakoshi S, Ono T, Ito J, Kunii Y, Hino M, Nagaoka A, Iwasaki Y, Yamamori H, Yasuda Y, Fujimoto M, Azechi H, Kudo N, Hashimoto R, Yabe H, Yoshida M, Saito Y, Kakita A, Fuse N, Kawashima R, Taki Y, Tomita H. Ethnicity-Dependent Effects of Schizophrenia Risk Variants of the OLIG2 Gene on OLIG2 Transcription and White Matter Integrity. Schizophr Bull 2020; 46:1619-1628. [PMID: 32285113 PMCID: PMC7846078 DOI: 10.1093/schbul/sbaa049] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Previous studies have indicated associations between several OLIG2 gene single-nucleotide polymorphisms (SNPs) and susceptibility to schizophrenia among Caucasians. Consistent with these findings, postmortem brain and diffusion tensor imaging studies have indicated that the schizophrenia-risk-associated allele (A) in the OLIG2 SNP rs1059004 predicts lower OLIG2 gene expression in the dorsolateral prefrontal cortex (DLPFC) of schizophrenia patients and reduced white matter (WM) integrity of the corona radiata in normal brains among Caucasians. In an effort to replicate the association between this variant and WM integrity among healthy Japanese, we found that the number of A alleles was positively correlated with WM integrity in some fiber tracts, including the right posterior limb of the internal capsule, and with mean blood flow in a widespread area, including the inferior frontal operculum, orbital area, and triangular gyrus. Because the A allele affected WM integrity in opposite directions in Japanese and Caucasians, we investigated a possible association between the OLIG2 gene SNPs and the expression level of OLIG2 transcripts in postmortem DLPFCs. We evaluated rs1059004 and additional SNPs in the 5' upstream and 3' downstream regions of rs1059004 to cover the broader region of the OLIG2 gene. The 2 SNPs (rs1059004 and rs9653711) had opposite effects on OLIG2 gene expression in the DLPFC in Japanese and Caucasians. These findings suggest ethnicity-dependent opposite effects of OLIG2 gene SNPs on WM integrity and OLIG2 gene expression in the brain, which may partially explain the failures in replicating associations between genetic variants and psychiatric phenotypes among ethnicities.
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Affiliation(s)
- Hiroshi Komatsu
- Department of Psychiatry, Miyagi Psychiatric Center, Natori, Japan,Department of Disaster Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan,To whom correspondence should be addressed; Department of Disaster Psychiatry, Graduate School of Medicine, Tohoku University, 2-1 Seiryo-machi, Aobaku, Sendai, 980-8573, Japan; Department of Psychiatry, Miyagi Psychiatric Center, Mubanchi, Tekurada, Natori, 981-1231, Japan; tel: +81-22-384-2236, fax: +81-22-384-9100, e-mail:
| | - Hikaru Takeuchi
- Division of Developmental Cognitive Neuroscience, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Yoshie Kikuchi
- Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan
| | - Chiaki Ono
- Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan
| | - Zhiqian Yu
- Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan
| | - Kunio Iizuka
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Yuji Takano
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Yoshihisa Kakuto
- Department of Psychiatry, Miyagi Psychiatric Center, Natori, Japan
| | - Shunichi Funakoshi
- Department of Psychiatry, Miyagi Psychiatric Center, Natori, Japan,Department of Community Psychiatry, Tohoku University, Sendai, Japan
| | - Takashi Ono
- Department of Psychiatry, Miyagi Psychiatric Center, Natori, Japan
| | - Junko Ito
- Department of Pathology, Brain Research Institute, Niigata University, Niigata, Japan
| | - Yasuto Kunii
- Department of Neuropsychiatry, Fukushima Medical University School of Medicine, Fukushima, Japan,Department of Psychiatry, Aizu Medical Center Fukushima Medical University, Fukushima, Japan
| | - Mizuki Hino
- Department of Neuropsychiatry, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Atsuko Nagaoka
- Department of Neuropsychiatry, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Yasushi Iwasaki
- Department of Neuropathology, Institute for Medical Science of Aging, Aichi Medical University, Nagakute, Japan
| | - Hidenaga Yamamori
- Department of Pathology of Mental Diseases, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan,Department of Psychiatry, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yuka Yasuda
- Department of Pathology of Mental Diseases, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan,Department of Psychiatry, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Michiko Fujimoto
- Department of Psychiatry, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Hirotsugu Azechi
- Molecular Research Center for Children’s Mental Development, United Graduate School of Child Development, Osaka University, Osaka, Japan
| | - Noriko Kudo
- Department of Pathology of Mental Diseases, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan,Department of Psychiatry, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Ryota Hashimoto
- Department of Pathology of Mental Diseases, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan,Department of Psychiatry, Osaka University Graduate School of Medicine, Osaka, Japan,Molecular Research Center for Children’s Mental Development, United Graduate School of Child Development, Osaka University, Osaka, Japan
| | - Hirooki Yabe
- Department of Neuropsychiatry, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Mari Yoshida
- Department of Neuropathology, Institute for Medical Science of Aging, Aichi Medical University, Nagakute, Japan
| | - Yuko Saito
- Department of Pathology and Laboratory Medicine, National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Akiyoshi Kakita
- Department of Pathology, Brain Research Institute, Niigata University, Niigata, Japan
| | - Nobuo Fuse
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Ryuta Kawashima
- Division of Developmental Cognitive Neuroscience, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan,Smart Aging International Research Center, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Yasuyuki Taki
- Division of Developmental Cognitive Neuroscience, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan,Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan,Department of Nuclear Medicine and Radiology, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Hiroaki Tomita
- Department of Disaster Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan,Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan,Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan,Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
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21
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Takahashi Y, Takeuchi H, Sakai M, Yu Z, Kikuchi Y, Ito F, Matsuoka H, Tanabe O, Yasuda J, Taki Y, Kawashima R, Tomita H. A single nucleotide polymorphism (-250 A/C) of the GFAP gene is associated with brain structures and cerebral blood flow. Psychiatry Clin Neurosci 2020; 74:49-55. [PMID: 31503390 DOI: 10.1111/pcn.12932] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 08/13/2019] [Accepted: 09/07/2019] [Indexed: 11/30/2022]
Abstract
AIM Glial fibrillary acidic protein (GFAP), the intermediate filament protein expressed in astrocytes, plays a key role in many aspects of brain function through communication with neurons or blood vessels. A common single nucleotide polymorphism (SNP), GFAP -250 C/A (rs2070935), is associated with the transcriptional regulation of GFAP, which can potentially result in the genotype-specific brain structure. This study aimed to verify the biological effects of the GFAP variants on brain structure and function. METHODS We investigated the associations between the GFAP variants and magnetic resonance imaging findings, including gray and white matter volumes, white matter integrity, and resting arterial blood flow, from 1212 healthy Japanese subjects. RESULTS The GFAP -250 C/A genotype was significantly associated with total gray matter volume, total white matter volume, average mean diffusivity, and mean cerebral blood flow. In voxel-by-voxel analyses, the GFAP genotype showed significant associations with the regional gray and white matter volumes in the inferior frontal lobe and corpus callosum, the regional mean diffusivity in the left posterior region, and the regional cerebral blood flow throughout the brain. CONCLUSION This study revealed a common SNP that is significantly associated with multiple global brain structure parameters.
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Affiliation(s)
- Yuta Takahashi
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan.,Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan.,Department of Psychiatry, Tohoku University Hospital, Sendai, Japan
| | - Hikaru Takeuchi
- Division of Developmental Cognitive Neuroscience, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Mai Sakai
- Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan
| | - Zhiqian Yu
- Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan.,Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Yoshie Kikuchi
- Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan
| | - Fumiaki Ito
- Department of Psychiatry, Tohoku University Hospital, Sendai, Japan
| | - Hiroo Matsuoka
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan.,Department of Psychiatry, Tohoku University Hospital, Sendai, Japan
| | - Osamu Tanabe
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Jun Yasuda
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Yasuyuki Taki
- Division of Developmental Cognitive Neuroscience, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan.,Division of Medical Neuroimage Analysis, Department of Community Medical Supports, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan.,Department of Nuclear Medicine and Radiology, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Ryuta Kawashima
- Division of Developmental Cognitive Neuroscience, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan.,Smart Ageing International Research Center, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan.,Department of Functional Brain Imaging, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Hiroaki Tomita
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan.,Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan.,Department of Psychiatry, Tohoku University Hospital, Sendai, Japan.,Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
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22
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Tsuchiya S, Matsumoto Y, Suzuki H, Kikuchi Y, Sugisawa J, Shindo T, Hao K, Takeuchi M, Takahashi J, Kumagai K, Wagatsuma T, Saiki Y, Shimokawa H. 92Transcatheter aortic valve implantation improves cerebral blood flow and cognitive function in elderly patients with aortic stenosis - Brain perfusion SPECT imaging study. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Cognitive impairment and depression are commonly noted in elderly frail patients with severe aortic stenosis (AS). However, their mechanisms and reversibility after treatment remain remain to be examined.
Purpose
In this study, we examined whether transcatheter aortic valve implantation (TAVI) increases cerebral blood flow (CBF) in cognitive/emotional brain areas, such as the hippocampus, in the elderly patients with severe AS.
Methods
We examined consecutive 15 right-handed patients with severe AS who were eligible for TAVI (median age 83.2 years, 12 (80%) women). We evaluated the following assessments both at baseline and 3 months after TAVI. Frailty was evaluated based on Fried scale, which consists of 5 items, including gait speed, cognitive function, weight loss, exhaustion, and inactivity. Frail and pre-frail were defined as greater than 3 and 1∼2 in the scale, respectively. Cognitive and emotional status were evaluated with Logical Memory (LM) II, Mini Mental State Examination (MMSE), and geriatric depression scale (GDS). Lower LM II (less than 4 points) and MMSE (less than 24 points) and higher GDS (more than 6 points) indicate worse memory, general cognitive function, and depressive symptoms, respectively. CBF images were recorded with 99mTc single-photon emission computed tomography and were analyzed using SPM12. Briefly, CBF images were firstly normalized to the standard Montreal Neurological Institute space. Then, a voxel-wise parametric analysis was conducted between normalized CBF images at baseline and those after TAVI (P<0.005 at each voxel). Continuous variables were presented as mean ± standard error (SE). Normality was assessed using the Shapiro-Wilk test. Continuous variables were compared with the use of paired t test. Linear mixed-model analysis was performed to evaluate changes in neuropsychological tests and CBF over time.
Results
In the present study, all patients were not robust but pre-frail (47.3%) or frail (53.7%). LM II score was significantly improved at 3 months after TAVI compared with baseline (baseline, 8.7 vs. 3 months, 13.8, P<0.01) (Figure A), whereas no significant changes in MMSE or GDS scores were noted (baseline, 24.6 vs. 3 months, 25.2 for MMSE; baseline, 4.3 vs. 3 months, 4.2 for GDS). Importantly, although no patients showed clinical symptoms or signs for transient ischemic attack or stroke after TAVI, CBF in the local regions, including the right hippocampus, was significantly increased after TAVI compared with baseline (P<0.005 at each voxel) (green arrowheads) (Figure B). Furthermore, CBF in the right hippocampus were positively correlated with LM II scores (P=0.017) (Figure C).
Figure 1
Conclusions
These results provide the first evidence that TAVI improves cerebral perfusion (especially that in the hippocampus) and cognitive functions in elderly patients with severe AS.
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Affiliation(s)
- S Tsuchiya
- Tohoku University Graduate School of Medicine, cardiovascular medicine, Sendai, Japan
| | - Y Matsumoto
- Tohoku University Graduate School of Medicine, cardiovascular medicine, Sendai, Japan
| | - H Suzuki
- Tohoku University Graduate School of Medicine, cardiovascular medicine, Sendai, Japan
| | - Y Kikuchi
- Tohoku University Graduate School of Medicine, cardiovascular medicine, Sendai, Japan
| | - J Sugisawa
- Tohoku University Graduate School of Medicine, cardiovascular medicine, Sendai, Japan
| | - T Shindo
- Tohoku University Graduate School of Medicine, cardiovascular medicine, Sendai, Japan
| | - K Hao
- Tohoku University Graduate School of Medicine, cardiovascular medicine, Sendai, Japan
| | - M Takeuchi
- Tohoku University Graduate School of Medicine, cardiovascular medicine, Sendai, Japan
| | - J Takahashi
- Tohoku University Graduate School of Medicine, cardiovascular medicine, Sendai, Japan
| | - K Kumagai
- Tohoku University Graduate School of Medicine, Cardiovascular Surgery, Sendai, Japan
| | - T Wagatsuma
- Tohoku University Graduate School of Medicine, Anesthesiology and Perioperative Medicine, Sendai, Japan
| | - Y Saiki
- Tohoku University Graduate School of Medicine, Cardiovascular Surgery, Sendai, Japan
| | - H Shimokawa
- Tohoku University Graduate School of Medicine, cardiovascular medicine, Sendai, Japan
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23
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Hao K, Takahashi J, Suda A, Sato K, Sugisawa J, Tsuchiya S, Shindo T, Ikeda S, Kikuchi Y, Shiroto T, Matsumoto Y, Sakata Y, Shimokawa H. P3575Clinical importance of fractional flow reserve in patients with organic coronary stenosis and vasospastic angina. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0436] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Vasospastic angina (VSA), which is one of the important functional cardiac disorders, may also play a role in the pathogenesis of atherosclerosis. Conversely, organic coronary stenosis is also known as an independent predictor for poor clinical outcomes in VSA patients. Although VSA patients have a variable degree of organic coronary stenosis in clinical setting, the functional importance of organic stenosis in those patients remains to be elucidated.
Purpose
The aim of this study was to examine the clinical importance and prognostic impact of fractional flow reserve (FFR) in patients with VSA and organic coronary stenosis.
Methods
We enrolled 236 consecutive patients with suspected vasospastic angina who underwent acetylcholine provocation test for coronary spasm (M/F 148/88, 63.6±12.0 [SD] yrs.). Among them, 175 patients (74.1%) were diagnosed as having VSA, while the remaining non-VSA patients were regarded as controls (Group-C, n=61). We divided the VSA patients into 3 groups based on angiographical findings and FFR values; VSA with no organic stenosis (>50% luminal stenosis) (Group-N, n=110), organic stenosis and high FFR (≥0.80) (Group-H, FFR 0.87±0.05, n=36), and organic stenosis and low FFR (<0.80) (Group-L, FFR 0.71±0.07, n=29). We evaluated the incidence of major adverse cardiovascular events (MACE), including cardiovascular death (CVD), non-fatal myocardial infarction (MI), urgent percutaneous coronary intervention (PCI), and hospitalization due to unstable angina pectoris (UAP) during the median follow-up period of 656 days.
Results
The groups with organic stenosis (Groups H and L) were characterized by higher prevalence of diabetes mellitus (Group-C/N/H/L, 23.0/20.9/44.4/34.5%, P=0.03) and dyslipidemia (Group-C/N/H/L, 37.7/39.1/50.0/65.5%, P=0.03) as compared with Group-C. After provocation test, all VSA patients received calcium channel blockers (CCBs). In addition, 20 days (median) after provocation test, 26 patients (92.9%) in Group-L underwent elective PCI with coronary stents, while no patient underwent PCI in Groups N or H. The incidence of MACE during follow-up was significantly higher in Group-L (Group-C/N/H/L; 1.6/3.6/5.6/27.6%, log-rank P<0.001), whereas clinical outcomes were comparable among the remaining 3 groups (Figure). Importantly, all 8 patients with MACE in Group-L had poor outcomes (CVD/MI/urgent PCI/UAP; 2/1/3/2) despite complete revascularization and the prevention of coronary spasm with CCBs, indicating that they might be resistant to standard contemporary therapies. They were characterized by less frequent use of angiotensin convert enzyme inhibitor (0 vs. 47.6%, P=0.02) and higher prevalence of multi-vessel organic lesions (37.5 vs. 4.8%, P=0.052) compared with those without MACE.
Figure 1
Conclusions
These results provide the first evidence that evaluation of coronary functional abnormalities with FFR is useful for making therapeutic strategies in VSA patients with organic coronary stenosis.
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Affiliation(s)
- K Hao
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - J Takahashi
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - A Suda
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - K Sato
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - J Sugisawa
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - S Tsuchiya
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - T Shindo
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - S Ikeda
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - Y Kikuchi
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - T Shiroto
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - Y Matsumoto
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - Y Sakata
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - H Shimokawa
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
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24
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Kajitani S, Shiroto T, Godo S, Ito A, Ikumi Y, Sugisawa J, Suda A, Shindo T, Ikeda S, Hao K, Kikuchi Y, Nochioka K, Matsumoto Y, Takahashi J, Shimokawa H. P4158Marked impairment of endothelium-dependent digital vasodilatations in patients with microvascular angina compared with those with vasospastic angina. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0730] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background/Introduction
Nitric oxide (NO) and endothelium-dependent hyperpolarization (EDH) factor are the major endothelium-derived relaxing factors. NO plays an important role in conduit arteries, while the importance of EDH factor increases as the vessel size decrease in patients with microvascular angina (MVA) compared with those with vasospastic angina (VSA) remains to be fully elucidated.
Purpose
We evaluated the roles of NO and EDH factor in conduit (brachial) arteries and resistance (digital) arteries of the patients with MVA, VSA and comorbid MVA+VSA patients.
Methods
We enrolled 39 patients who underwent diagnostic cardiac catheterization and divided them into 3 groups based on acetylcholine (ACh) provocation test, index of microcirculation resistance (IMR), and coronary flow reserve (CFR); MVA (N=9, mean age 59.9±3.5 years), VSA (N=12, mean age 61.3±1.8 years), and comorbid MVA+VSA (N=18, mean age 64.0±2.2 years). Endothelium-dependent brachial and digital vasodilatations in response to intra-arterial infusion of bradykinin (BK, 25, 50, and 100 ng/min for 2 min) were simultaneously measured by ultrasonography and peripheral arterial tonometry, respectively. Measurements were repeated after oral administration of aspirin (486 mg) and intra-arterial infusion of NG-monomethyl-L-arginine (L-NMMA, 8μmol/min for 5 min) in order to inhibit the effects of vasodilator prostaglandins and NO, respectively. Finally, endothelium-independent brachial and digital vasodilatations in response to sublingual nitroglycerin (NTG, 0.3 mg) were measured in the same manner.
Results
In the brachial artery, dose-dependent vasodilatations to BK were comparable among the 3 groups, and L-NMMA equally attenuated the responses to BK (Figure 1). Endothelium-independent brachial vasodilatation in response to NTG was also comparable among the 3 groups. Surprisingly, dose-dependent digital vasodilatations to BK were almost absent in MVA patients compared with VSA or comorbid MVA+VSA group (Figure 2). Furthermore, the digital vasodilatations were unaffected by L-NMMA in VSA group, but were significantly reduced in comorbid MVA+VSA group (VSA, 16.8±15.1% vs. MVA+VSA, −0.23±6.2%, P<0.05), suggesting reduced EDH and compensatory role of NO in the latter group. In contrast, endothelium-independent digital vasodilatation in response to NTG was comparable among the 3 groups.
The main results of this study
Conclusions
These results provide the first evidence that endothelium-dependent digital vasodilatations (both NO and EDH factor) are markedly impaired in MVA patients compared with VSA or comorbid MVA+VSA patients, whereas the responses are comparable in the brachial artery among the 3 groups, suggesting the involvement of severe endothelial dysfunction in the pathogenesis of MVA.
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Affiliation(s)
- S Kajitani
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - T Shiroto
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - S Godo
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - A Ito
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Y Ikumi
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - J Sugisawa
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - A Suda
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - T Shindo
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - S Ikeda
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - K Hao
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Y Kikuchi
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - K Nochioka
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Y Matsumoto
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - J Takahashi
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - H Shimokawa
- Tohoku University Graduate School of Medicine, Sendai, Japan
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25
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Watanabe T, Matsumoto Y, Amamizu H, Morosawa S, Ohyama K, Nishimiya K, Shindo T, Suda A, Ikeda S, Kikuchi Y, Hao K, Shiroto T, Takahashi J, Shimokawa H. 2381Low-intensity pulsed ultrasound ameliorates DES-induced coronary adventitial inflammation and hyperconstricting responses in pigs in vivo - A novel non-invasive therapy for coronary inflammation. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
We previously demonstrated that coronary adventitial inflammation plays important roles in the pathogenesis of coronary artery spasm, including drug-eluting stent (DES)-induced coronary hyperconstricting responses, in pigs and humans. Indeed, the coronary adventitia has recently attracted much attention as the important site for vascular inflammation. However, a direct therapeutic approach to the coronary adventitia remains to be developed. We have developed a non-invasive low-intensity pulsed ultrasound (LIPUS) therapy for angina, which exerts anti-inflammatory effects through improved coronary microcirculation.
Purpose
In this study, we aimed to examine whether our LIPUS therapy ameliorates DES-induced coronary hyperconstricting responses in pigs in vivo, and if so, what mechanisms are involved.
Methods
An everolimus-eluting stent (EES) was implanted into the left anterior descending (LAD) coronary artery in normal male pigs. They were randomly assigned to the LIPUS or the sham therapy groups. After EES implantation, in the LIPUS group, LIPUS (32 cycles, 193 mW/cm2) was applied to the heart at 3 different levels (proximal and distal stent edges and middle portion of the stent) through X-ray for 20 min at each level for every other day for 2 weeks (6 days in total) (Figs. 1A, 1B). The sham therapy group was treated in the same manner but without LIPUS. At 4 weeks after the procedure, we performed coronary angiography to examine coronary vasoconstricting responses to intracoronary serotonin in vivo. Finally, stented coronary vessels were harvested for immunohistochemistry of vasa vasorum, lymphatic vessels (LYVE-1), sympathetic nerve fibers (SNF), vascular inflammation (macrophages and IL-1β expression), Rho-kinase expression and activity as evaluated by phosphorylated myosin phosphatase target subunit-1 (pMYPT-1).
Results
Coronary vasoconstricting responses to intracoronary serotonin were significantly enhanced in the sham therapy group but were significantly suppressed in the LIPUS group at the DES edges in the LAD, whereas those responses were comparable at the non-DES implanted segments in the left circumflex (LCx) coronary arteries between the 2 groups. (Figs. 1C, 1D). Furthermore, in vivo lymph transport speed was significantly faster in the LIPUS group than in sham group (Figs. 1E–1G). Histological analysis showed that except vasa vasorum formation, the number of lymphatic vessels, adventitial inflammatory cells infiltration, Rho-kinase expression and activity were all significantly enhanced in the sham therapy group and were significantly suppressed in the LIPUS group (Figs. 1G–1K).
Figure 1
Conclusion
We were able to develop a non-invasive LIPUS therapy for coronary functional abnormalities caused by chronic adventitial inflammation in pigs in vivo, for which multiple beneficial effects appear to be involved (Fig. 1L).
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Affiliation(s)
- T Watanabe
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Y Matsumoto
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - H Amamizu
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - S Morosawa
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - K Ohyama
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - K Nishimiya
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - T Shindo
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - A Suda
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - S Ikeda
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Y Kikuchi
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - K Hao
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - T Shiroto
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - J Takahashi
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - H Shimokawa
- Tohoku University Graduate School of Medicine, Sendai, Japan
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26
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Sugisawa J, Matsumoto Y, Suda A, Ota H, Tsuchiya S, Ohyama K, Takeuchi M, Shindo T, Ikeda S, Hao K, Kikuchi Y, Takahashi J, Takase K, Kohzuki M, Shimokawa H. 3332Exercise training ameliorates vasodilator capacity of coronary microvessels in patients with vasospastic angina - A new therapeutic approach for the coronary functional disorder. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
We have recently demonstrated that coronary vasospasm could develop in both epicardial coronary arteries and intramuscular coronary microvessels in patients with vasospastic angina (VSA). However, it remains to be examined whether vasodilator capacity of coronary microvessels is impaired in VSA patients and if so, whether exercise training could ameliorate vasodilator capacity of coronary microvessels on the top of calcium channel blockers. The effectiveness of exercise training is established for organic coronary artery disease but remained to be examined for VSA.
Purpose
We thus examined whether vasodilator capacity of coronary microvessels is impaired in VSA patients without organic coronary stenosis using an adenosine-stress dynamic computed tomography perfusion (CTP) that can measure absolute value of myocardial blood flow (MBF). We also examined whether exercise training ameliorates not only vasodilator capacity of coronary microvessels but also exercise capacity and frequency of angina attack.
Methods
In the first protocol, we measured MBF using CTP in consecutive 32 VSA patients with acetylcholine-induced diffuse coronary spasm in the left anterior descending coronary arteries (LAD) and 12 non-VSA controls. In the second protocol, we conducted a randomized controlled trial (RCT; Exercise VSA trial, UMIN: ehz745.008423996), where 20 VSA patients were randomly assigned to either exercise group (Ex group: supervised exercise training session for 30-min using bicycle ergometer, once/week at the hospital and more than 3 times/week at home) or non-exercise group (Non-Ex group) (n=10 each) (Figure A). Before and 3 months after exercise training, we measured MBF with adenosine-stress dynamic CTP and peak VO2 by cardiopulmonary exercise tests, and also assessed angina attack with Seattle Angina Questionnaire (SAQ).
Results
In the first protocol, CTP showed that adenosine-stress MBF was significantly decreased in the VSA group compared with the non-VSA group (VSA, 137.2±6.6 vs. Non-VSA, 174.4±10.7 ml/100g/min, P<0.01) (Figure B), although patient characteristics were comparable between the 2 groups. In the second protocol, exercise training was performed safely in all patients, and RCT showed that MBF was significantly increased in the Ex group compared with the non-Ex group (Figures C, D), although patient characteristics were also comparable between the 2 groups. Furthermore, peak VO2 was significantly increased in the Ex group compared with the non-Ex group (Figure E), and frequency of angina was significantly decreased in the Ex group compared with the non-Ex group (Figure F). Finally, there was a significant positive correlation between the extents of the changes in peak VO2 and the SAQ score for angina frequency in the Ex group (P<0.01, R=0.67).
Figures
Conclusions
These results provide the first evidence that vasodilator capacity of coronary microvessels is impaired in VSA patients, which can be ameliorated by exercise training.
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Affiliation(s)
- J Sugisawa
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - Y Matsumoto
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - A Suda
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - H Ota
- Tohoku University Graduate School of Medicine, Department of Radiology, Sendai, Japan
| | - S Tsuchiya
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - K Ohyama
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - M Takeuchi
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - T Shindo
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - S Ikeda
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - K Hao
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - Y Kikuchi
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - J Takahashi
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - K Takase
- Tohoku University Graduate School of Medicine, Department of Radiology, Sendai, Japan
| | - M Kohzuki
- Tohoku University Graduate School of Medicine, Department of Internal Medicine & Rehabilitation Science, Sendai, Japan
| | - H Shimokawa
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
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27
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Kolossvary M, Karady J, Kikuchi Y, Ivanov A, Schlett CL, Lu MT, Foldyna B, Merkely B, Aerts HJ, Maurovich-Horvat P, Hoffmann U. P6166Radiomics-based machine learning versus histogram analysis and visual assessment to identify advanced atherosclerotic lesions on coronary computed tomography angiography. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Currently used coronary CT angiography (CTA) plaque classification and histogram-based methods have limited accuracy to identify advanced atherosclerotic lesions. Radiomics-based machine learning (ML) could provide a more robust tool to identify high-risk plaques.
Purpose
Our objective was to compare the diagnostic performance of radiomics-based ML against histogram-based methods and visual assessment of ex-vivo coronary CTA cross-sections to identify advanced atherosclerotic lesions as defined by histology.
Methods
Overall, 21 coronaries of seven hearts were imaged ex vivo with coronary CTA. From 95 coronary plaques 611 histological cross-sections were obtained and classified based-on the modified American Heart Association scheme. Histology cross-sections were considered advanced atherosclerotic lesions if early, late fibroatheroma or thin-cap atheroma was present. Corresponding coronary CTA cross-section were co-registered and classified into homogenous, heterogeneous, napkin-ring sign plaques based on plaque attenuation pattern. Area of low attenuation (<30HU) and average CT number was quantified. In total, 1919 radiomic parameters describing the spatial complexity and heterogeneity of the lesions were calculated in each coronary CTA cross-section. Eight different radiomics-based ML models were trained on randomly selected cross-sections (training set: 75% of the cross-sections) to identify advanced atherosclerotic lesions. Plaque attenuation pattern, histogram-based methods and the best ML model were compared on the remaining 25% of the data (test-set) using area under the receiver operating characteristic curves (AUC) to identify advanced atherosclerotic lesions using histology as a reference.
Results
After excluding sections with heavy calcium (n=32) and no visible atherosclerotic plaque on CTA (n=134), we analyzed 445 cross-sections. Based on visual assessment, 46.5% of the cross-sections were homogeneous (207/445), 44.9% heterogeneous (200/445) and 8.6% were with napkin-ring sign (38/445). Radiomics-based ML model incorporating 13 parameters significantly outperformed visual assessment, area of low attenuation and average CT number to identify advanced lesions (AUC: 0.73 vs. 0.65 vs. 0.55 vs. 0.53; respectively; p<0.05 for all).
Conclusions
Radiomics-based ML analysis may be able to improve the discriminatory power of CTA to identify high-risk atherosclerotic lesions.
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Affiliation(s)
- M Kolossvary
- Semmelweis University, Heart and Vascular Center, Budapest, Hungary
| | - J Karady
- Massachusetts General Hospital, Department of Radiology, Boston, United States of America
| | - Y Kikuchi
- Massachusetts General Hospital, Department of Radiology, Boston, United States of America
| | - A Ivanov
- Massachusetts General Hospital, Department of Radiology, Boston, United States of America
| | - C L Schlett
- University of Freiburg, Department for Diagnostic and Interventional Radiology, Freiburg, Germany
| | - M T Lu
- Massachusetts General Hospital, Department of Radiology, Boston, United States of America
| | - B Foldyna
- Massachusetts General Hospital, Department of Radiology, Boston, United States of America
| | - B Merkely
- Semmelweis University, Heart and Vascular Center, Budapest, Hungary
| | - H J Aerts
- Brigham and Womens Hospital, Department of Radiation Oncology, Boston, United States of America
| | | | - U Hoffmann
- Massachusetts General Hospital, Department of Radiology, Boston, United States of America
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Suda A, Takahashi J, Hao K, Kikuchi Y, Shindo T, Ikeda S, Sato K, Sugisawa J, Matsumoto Y, Miyata S, Sakata Y, Shimokawa H. P4156Coexistence and prognostic impacts of epicardial and microvascular coronary dysfunctions in patients with chest pain and unobstructive coronary artery disease - Involvement of Rho-kinase activation. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Although the importance of coronary functional abnormalities has been emerging, including epicardial coronary spasm (vasospastic angina, VSA) and coronary microvascular dysfunction (CMD), comprehensive evaluation of the abnormalities in the same population remains to be examined.
Purpose
We examined the significance of coronary functional abnormalities in a comprehensive manner for both epicardial and microvascular coronary arteries in patients with chest pain and unobstructive coronary artery disease (CAD) as well as their prognostic impacts.
Methods and results
We prospectively enrolled 187 consecutive patients with suspected angina and unobstructive coronary arteries (M/F 113/74, 63.2±12.3 [SD] yrs.). We performed acetylcholine (ACh) provocation tests for coronary spasm, followed by functional tests for coronary microvascular function, including coronary flow reserve (CFR) and index of microcirculation resistance (IMR) during hyperemic state induced by intravenous adenosine. Among the 187 patients, ACh test identified 128 patients with VSA (68%). There was no significant difference in age, sex, or prevalence of traditional coronary risk factors between the non-VSA and the VSA groups. The median IMR value was significantly higher in the VSA group than in the non-VSA group [17.5 (12.0, 25.3) vs. 14.7 (10.7, 17.8), P=0.02], whereas CFR values were comparable between the 2 groups [2.51 (1.72, 3.35) vs. 2.66 (1.85, 3.64), P=0.34]. During the median follow-up period of 893 days, major adverse cardiac events (MACE), including cardiac death, non-fatal myocardial infarction, and hospitalization due to unstable angina pectoris, occurred in 10 patients (5.3%). Multivariable analysis revealed that IMR correlated with the incidence of MACE [hazard ratio (HR) (95% confidence interval), 1.05 (1.02–1.09), P=0.002] and receiver-operating characteristics curve analysis identified IMR of 18.0 as the optimal cut-off value for the incidence of cardiac events. When we divided the patients into the following 4 groups according to the cut-off value of IMR (>18) and the presence or absence of VSA; G1, IMR <18 without VSA (n=45); G2, IMR ≥18 without VSA (n=14); G3, IMR <18 with VSA (n=67); and G4, IMR ≥18 with VSA (n=61), the Kaplan-Meier survival analysis showed a significantly worse prognosis in G4 compared with other 3 groups (HR [95% CI] 6.23 [1.21–118.46], P=0.002) (Figure 1). Importantly, intracoronary administration of fasudil, a Rho-kinase inhibitor, significantly ameliorated IMR in G4 (P<0.0001) (Figure 2A), and %changes in IMR in response to intracoronary fasudil were more evident in G4 compared with other 3 groups (P<0.0001) (Figure 2B).
Conclusions
These results provide the first evidence that in patients with chest pain and unobstructive CAD, epicardial coronary spasm and increased microvascular resistance are frequently coexisted with worse long-term prognosis, for which Rho-kinase activationmay be involved.
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Affiliation(s)
- A Suda
- Tohoku University Graduate School of Medicine, Cardiovascular medicine, Sendai, Japan
| | - J Takahashi
- Tohoku University Graduate School of Medicine, Cardiovascular medicine, Sendai, Japan
| | - K Hao
- Tohoku University Graduate School of Medicine, Cardiovascular medicine, Sendai, Japan
| | - Y Kikuchi
- Tohoku University Graduate School of Medicine, Cardiovascular medicine, Sendai, Japan
| | - T Shindo
- Tohoku University Graduate School of Medicine, Cardiovascular medicine, Sendai, Japan
| | - S Ikeda
- Tohoku University Graduate School of Medicine, Cardiovascular medicine, Sendai, Japan
| | - K Sato
- Tohoku University Graduate School of Medicine, Cardiovascular medicine, Sendai, Japan
| | - J Sugisawa
- Tohoku University Graduate School of Medicine, Cardiovascular medicine, Sendai, Japan
| | - Y Matsumoto
- Tohoku University Graduate School of Medicine, Cardiovascular medicine, Sendai, Japan
| | - S Miyata
- Tohoku University Graduate School of Medicine, Cardiovascular medicine, Sendai, Japan
| | - Y Sakata
- Tohoku University Graduate School of Medicine, Cardiovascular medicine, Sendai, Japan
| | - H Shimokawa
- Tohoku University Graduate School of Medicine, Cardiovascular medicine, Sendai, Japan
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29
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Mitobe Y, Koyama Y, Sakai S, Uchiyama M, Abeywickrama H, Yamada E, Ohashi K, Kikuchi Y, Nitta M, Honda T, Endoh H. PT01.6: Sketetal Muscle Index at ICU (Intensive Care Unit) Admission is Valid for Predicting the Progression of ICU-Acquired Weakness (ICU-AW) for Septic Patients. Clin Nutr 2019. [DOI: 10.1016/s0261-5614(19)32546-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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30
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Ono CT, Yu Z, Kikuchi Y, Kunii Y, Hino M, Matsumoto J, Nagaoka A, Ito J, Iwasaki Y, Hagihara H, Miyakawa T, Yoshida M, Saito Y, Niwa SI, Yabe H, Kakita A, Tomita H. Minimal amount of tissue-based pH measurement to improve quality control in neuropsychiatric post-mortem brain studies. Psychiatry Clin Neurosci 2019; 73:566-573. [PMID: 31102310 DOI: 10.1111/pcn.12863] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 05/01/2019] [Accepted: 05/13/2019] [Indexed: 12/23/2022]
Abstract
AIM Tissue pH and RNA integrity are crucial quality-control indicators of human post-mortem brain tissues in the identification of the pathogeneses of neuropsychiatric disorders, but pH has not been measured as often due to limitations in the amount of tissue available. This study was designed to develop and validate a protocol for tissue pH evaluation using a minimal amount of human post-mortem tissues. METHODS A procedure that included a proper ratio of brain tissue weight to water for homogenization and the duration of homogenization was designed based on preliminary experiments using mouse brain tissues. The minimal (10 mg) and typical (100 mg) amounts of post-mortem brain tissue from 52 subjects were homogenized in 5 volumes (50 μL/10 mg tissue) and 10 volumes (1000 μL/100 mg tissue) of nuclease-free water and subjected to pH measurements using an InLab Ultra micro pH electrode. RESULTS The pH values based on the new protocol using a minimal amount of tissue significantly correlated with measurements of the standard protocol (r2 = 0.86). The correlation coefficients of the pH values between gray and white matter of the same brain region, and the values between different brain regions were 0.73 and 0.54, respectively. CONCLUSION The proposed protocol used one-tenth of the tissue amount of current standard protocol and enabled us to evaluate the exact quality of post-mortem brain tissue subjected to subsequent analyses. The application of this protocol may improve the detection of biological phenomena of interest in post-mortem brain studies by diminishing confounding factors.
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Affiliation(s)
- Chiaki T Ono
- Department of Disaster Psychiatry, International Research Institute of Disaster Psychiatry, Tohoku University, Sendai, Japan
| | - Zhiqian Yu
- Department of Disaster Psychiatry, International Research Institute of Disaster Psychiatry, Tohoku University, Sendai, Japan
| | - Yoshie Kikuchi
- Department of Disaster Psychiatry, International Research Institute of Disaster Psychiatry, Tohoku University, Sendai, Japan
| | - Yasuto Kunii
- Department of Neuropsychiatry, School of Medicine, Fukushima Medical University, Fukushima, Japan.,Department of Psychiatry, Aizu Medical Center, Fukushima Medical University, Fukushima, Japan
| | - Mizuki Hino
- Department of Neuropsychiatry, School of Medicine, Fukushima Medical University, Fukushima, Japan
| | - Junya Matsumoto
- Department of Neuropsychiatry, School of Medicine, Fukushima Medical University, Fukushima, Japan
| | - Atsuko Nagaoka
- Department of Neuropsychiatry, School of Medicine, Fukushima Medical University, Fukushima, Japan
| | - Junko Ito
- Department of Pathology, Brain Research Institute, Niigata University, Niigata, Japan
| | - Yasushi Iwasaki
- Department of Neuropathology, Institute for Medical Science of Aging, Aichi Medical University, Nagakute, Japan
| | - Hideo Hagihara
- Division of Systems Medical Science, Institute for Comprehensive Medical Science, Fujita Health University, Toyoake, Japan
| | - Tsuyoshi Miyakawa
- Division of Systems Medical Science, Institute for Comprehensive Medical Science, Fujita Health University, Toyoake, Japan
| | - Mari Yoshida
- Department of Neuropathology, Institute for Medical Science of Aging, Aichi Medical University, Nagakute, Japan
| | - Yuko Saito
- Department of Pathology and Laboratory Medicine, National Center Hospital, National Center of Neurology and Psychiatry, Kodaira, Japan
| | - Shin-Ichi Niwa
- Department of Psychiatry, Aizu Medical Center, Fukushima Medical University, Fukushima, Japan
| | - Hirooki Yabe
- Department of Neuropsychiatry, School of Medicine, Fukushima Medical University, Fukushima, Japan
| | - Akiyoshi Kakita
- Department of Pathology, Brain Research Institute, Niigata University, Niigata, Japan
| | - Hiroaki Tomita
- Department of Disaster Psychiatry, International Research Institute of Disaster Psychiatry, Tohoku University, Sendai, Japan
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Maruyama A, Yamaguchi T, Ono D, Kikuchi T, Kikuchi Y, Sato R, Watanabe S, Hosokai Y. EP-1702 Examination of the real-time exposure dosimetry system using synthetic ruby on the radiation therapy. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)32122-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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32
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Kadoya N, Abe Y, Ito K, Yamamoto T, Chiba T, Takayama Y, Kato T, Kikuchi Y, Jingu K. Dosimetric Impact of Automated Non-Coplanar Treatment Planning Using Stereotactic Radiosurgery for Multiple Cranial Metastases: Comparison between Hyperarc and Cyberknife Dose Distributions. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.1449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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33
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Takeuchi H, Tomita H, Taki Y, Kikuchi Y, Ono C, Yu Z, Nouchi R, Yokoyama R, Kotozaki Y, Nakagawa S, Sekiguchi A, Iizuka K, Hanawa S, Araki T, Miyauchi CM, Sakaki K, Nozawa T, Ikeda S, Yokota S, Magistro D, Sassa Y, Kawashima R. A Common CACNA1C Gene Risk Variant has Sex-Dependent Effects on Behavioral Traits and Brain Functional Activity. Cereb Cortex 2018; 29:3211-3219. [DOI: 10.1093/cercor/bhy189] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 06/23/2018] [Indexed: 01/08/2023] Open
Abstract
Abstract
Genome-wide association studies have suggested that allelic variations in the CACNA1C gene confer susceptibility to schizophrenia and bipolar disorder only in women. Here we investigated the sex-specific effects of the CACNA1C variant rs1024582 on psychiatry-related traits, brain activity during tasks and rest, and brain volume in 1207 normal male and female subjects. After correcting for multiple comparisons, there were significant interaction effects between sex and the minor allele of this polymorphism on the hostile behavior subscale scores of the Coronary-Prone Type Scale mediated by higher scores in female carriers of the minor allele. Imaging analyses revealed significant interaction effects between sex and the minor allele on fractional amplitude of low-frequency fluctuations in the right dorsolateral prefrontal cortex and on brain activity during the 2-back task in areas of the right posterior cingulate cortex, right thalamus, and right hippocampus, which were all mediated by reduced activity in female carriers of the minor allele. Our results demonstrated that the rs1024582 risk variant of CACNA1C is associated with reduced activity in the frontolimbic regions at rest and during a working memory task as well as with greater hostility in females in the healthy population.
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Affiliation(s)
- Hikaru Takeuchi
- Division of Developmental Cognitive Neuroscience, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Hiroaki Tomita
- Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan
| | - Yasuyuki Taki
- Division of Developmental Cognitive Neuroscience, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
- Division of Medical Neuroimaging Analysis, Department of Community Medical Supports, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Department of Radiology and Nuclear Medicine, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Yoshie Kikuchi
- Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan
| | - Chiaki Ono
- Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan
| | - Zhiqian Yu
- Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan
| | - Rui Nouchi
- Creative Interdisciplinary Research Division, Frontier Research Institute for Interdisciplinary Science, Tohoku University, Sendai, Japan
- Human and Social Response Research Division, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan
- Department of Advanced Brain Science, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | | | - Yuka Kotozaki
- Division of Clinical Research, Medical-Industry Translational Research Center, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Seishu Nakagawa
- Department of Human Brain Science, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
- Division of Psychiatry, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Atsushi Sekiguchi
- Division of Medical Neuroimaging Analysis, Department of Community Medical Supports, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Department of Behavioral Medicine, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Kunio Iizuka
- Department of Psychiatry, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Sugiko Hanawa
- Department of Human Brain Science, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | | | - Carlos Makoto Miyauchi
- Department of Language Sciences, Graduate School of Humanities, Tokyo Metropolitan University, Tokyo, Japan
| | - Kohei Sakaki
- Department of Advanced Brain Science, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Takayuki Nozawa
- Collaborative Research Center for Happiness Co-Creation Society through Intelligent Communications, Tokyo Institute of Technology, Tokyo, Japan
| | - Shigeyuki Ikeda
- Department of Ubiquitous Sensing, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Susumu Yokota
- Division of Developmental Cognitive Neuroscience, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Daniele Magistro
- Department of Sport Science, School of Science and Technology, Nottingham Trent University, Nottingham, UK
| | - Yuko Sassa
- Division of Developmental Cognitive Neuroscience, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Ryuta Kawashima
- Division of Developmental Cognitive Neuroscience, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
- Department of Advanced Brain Science, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
- Department of Human Brain Science, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
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Tsuchiya S, Matsumoto Y, Kikuchi Y, Sugisawa J, Hao K, Takeuchi M, Takahashi J, Kawamoto S, Kumagai K, Wagatsuma T, Saiki Y, Shimokawa H. P6315Evidence for improved cognitive function following transcatheter aortic valve implantation in elderly patients with severe aortic stenosis - Brain perfusion SPECT imaging study. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- S Tsuchiya
- Tohoku University Graduate School of Medicine, cardiovascular medicine, Sendai, Japan
| | - Y Matsumoto
- Tohoku University Graduate School of Medicine, cardiovascular medicine, Sendai, Japan
| | - Y Kikuchi
- Tohoku University Graduate School of Medicine, cardiovascular medicine, Sendai, Japan
| | - J Sugisawa
- Tohoku University Graduate School of Medicine, cardiovascular medicine, Sendai, Japan
| | - K Hao
- Tohoku University Graduate School of Medicine, cardiovascular medicine, Sendai, Japan
| | - M Takeuchi
- Tohoku University Graduate School of Medicine, cardiovascular medicine, Sendai, Japan
| | - J Takahashi
- Tohoku University Graduate School of Medicine, cardiovascular medicine, Sendai, Japan
| | - S Kawamoto
- Tohoku Pharmaceutical University Hospital, Cardiovascular Surgery, Sendai, Japan
| | - K Kumagai
- Tohoku University Graduate School of Medicine, Cardiovascular Surgery, Sendai, Japan
| | - T Wagatsuma
- Tohoku University Graduate School of Medicine, Anesthesiology and Perioperative Medicine, Sendai, Japan
| | - Y Saiki
- Tohoku University Graduate School of Medicine, Cardiovascular Surgery, Sendai, Japan
| | - H Shimokawa
- Tohoku University Graduate School of Medicine, cardiovascular medicine, Sendai, Japan
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35
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Hao K, Takahashi J, Suda A, Sato K, Sugisawa J, Tsuchiya S, Sindo T, Ikeda S, Kikuchi Y, Matsumoto Y, Sakata Y, Shimokawa H. P4628Clinical significance of fractional flow reserve in patients with vasospastic angina and organic coronary stenosis. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- K Hao
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - J Takahashi
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - A Suda
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - K Sato
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - J Sugisawa
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - S Tsuchiya
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - T Sindo
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - S Ikeda
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - Y Kikuchi
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - Y Matsumoto
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - Y Sakata
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - H Shimokawa
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
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36
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Suda A, Takahashi J, Hao K, Kikuchi Y, Shindo T, Sato K, Sugisawa J, Matsumoto Y, Miyata S, Sakata Y, Shimokawa H. 1345Prognostic impacts of impaired coronary vasodilatation and enhanced coronary vasoconstricting responses in patients with angina and unobstructive coronary arteries. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.1345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- A Suda
- Tohoku University Graduate School of Medicine, Cardiovascular medicine, Sendai, Japan
| | - J Takahashi
- Tohoku University Graduate School of Medicine, Cardiovascular medicine, Sendai, Japan
| | - K Hao
- Tohoku University Graduate School of Medicine, Cardiovascular medicine, Sendai, Japan
| | - Y Kikuchi
- Tohoku University Graduate School of Medicine, Cardiovascular medicine, Sendai, Japan
| | - T Shindo
- Tohoku University Graduate School of Medicine, Cardiovascular medicine, Sendai, Japan
| | - K Sato
- Tohoku University Graduate School of Medicine, Cardiovascular medicine, Sendai, Japan
| | - J Sugisawa
- Tohoku University Graduate School of Medicine, Cardiovascular medicine, Sendai, Japan
| | - Y Matsumoto
- Tohoku University Graduate School of Medicine, Cardiovascular medicine, Sendai, Japan
| | - S Miyata
- Tohoku University Graduate School of Medicine, Cardiovascular medicine, Sendai, Japan
| | - Y Sakata
- Tohoku University Graduate School of Medicine, Cardiovascular medicine, Sendai, Japan
| | - H Shimokawa
- Tohoku University Graduate School of Medicine, Cardiovascular medicine, Sendai, Japan
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37
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Kikuchi Y, Takahashi J, Sato K, Sugisawa J, Tsuchiya S, Suda A, Shindo T, Ikeda S, Hao K, Shiroto T, Matsumoto Y, Sakata Y, Shimokawa H. P793Usefulness and safety of fasudil, a selective Rho-kinase inhibitor, for PCI-related myocardial ischemia in interventional cardiology. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.p793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Y Kikuchi
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - J Takahashi
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - K Sato
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - J Sugisawa
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - S Tsuchiya
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - A Suda
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - T Shindo
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - S Ikeda
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - K Hao
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - T Shiroto
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Y Matsumoto
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Y Sakata
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - H Shimokawa
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
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38
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Sugisawa J, Matsumoto Y, Suda A, Ota H, Tsuchiya S, Ohyama K, Sato K, Shindo T, Ikeda S, Hao K, Kikuchi Y, Takahashi J, Shimokawa H. 1343Evidence for impaired vasodilator capacity of coronary microvessels in patients with vasospatic angina - Myocardial CT perfusion imaging study. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.1343] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- J Sugisawa
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - Y Matsumoto
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - A Suda
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - H Ota
- Tohoku University Graduate School of Medicine, Department of Radiology, Sendai, Japan
| | - S Tsuchiya
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - K Ohyama
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - K Sato
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - T Shindo
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - S Ikeda
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - K Hao
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - Y Kikuchi
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - J Takahashi
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - H Shimokawa
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
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39
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Obara T, Toyomaki K, Uegaki Y, Kikuchi Y, Arai J, Kuroda K, Suwabe A. Prozone-like phenomenon found in chemiluminescent enzyme immunoassay using magnetic particles for measurement of serum anti-single stranded DNA antibody titers: Definition and management. Clin Chim Acta 2018; 485:88-94. [PMID: 29928865 DOI: 10.1016/j.cca.2018.06.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 06/15/2018] [Accepted: 06/18/2018] [Indexed: 11/19/2022]
Abstract
BACKGROUND Serum anti-single stranded DNA antibody (anti-ssDNAab) is used as a marker for systemic lupus erythematosus. We found a 'prozone-like phenomenon,' which was different from an original prozone phenomenon, in chemiluminescent enzyme immunoassay using magnetic particles for the measurement of serum anti-ssDNAab titers. We investigated mechanisms of the prozone-like phenomenon and countermeasures to prevent it from being overlooked. METHODS This study examined 679 samples from patients tested for anti-ssDNAab titer at our hospital. In addition, the BF photometry OD value 2 (OD2), an index of optical density, was monitored simultaneously. RESULTS The undiluted samples with a prozone-like phenomenon showed extremely lower OD2. Those samples were able to be distinguished from other samples by setting OD2 criteria based on the 95% prediction interval. Significant differences (p < 0.05) were found in the titer ratios (ten-fold diluted against undiluted) between groups with >1.5 and other groups with <1.5 for the ratios of OD2. CONCLUSIONS We proposed two valuable methods to find a prozone-like phenomenon: one by setting OD2 criteria based on the 95% prediction interval and the other by analyzing the ratios both in titers and OD2 between undiluted and 10-fold diluted samples.
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Affiliation(s)
- Takehiro Obara
- Division of Central Clinical Laboratory, Iwate Medical University Hospital, Morioka, Japan.
| | - Kazushi Toyomaki
- Division of Central Clinical Laboratory, Iwate Medical University Hospital, Morioka, Japan
| | - Yurino Uegaki
- Division of Central Clinical Laboratory, Iwate Medical University Hospital, Morioka, Japan
| | - Yoshie Kikuchi
- Division of Central Clinical Laboratory, Iwate Medical University Hospital, Morioka, Japan
| | - Jiro Arai
- Medical & Biological Laboratories Co., Ltd., Nagoya, Japan
| | - Keiko Kuroda
- Medical & Biological Laboratories Co., Ltd., Nagoya, Japan
| | - Akira Suwabe
- Department of Laboratory Medicine, Iwate Medical University School of Medicine, Morioka, Japan
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40
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Kikuchi Y, Hiwatashi A, Togao O, Yamashita K, Momosaka D, Honda H. Cerebral syphilitic gumma mimicking glioma: Utility of CT perfusion. Diagn Interv Imaging 2018; 99:755-757. [PMID: 29910168 DOI: 10.1016/j.diii.2018.05.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Revised: 05/21/2018] [Accepted: 05/22/2018] [Indexed: 11/30/2022]
Affiliation(s)
- Y Kikuchi
- Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, 812-8582 Fukuoka, Higashi-ku, Japan
| | - A Hiwatashi
- Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, 812-8582 Fukuoka, Higashi-ku, Japan.
| | - O Togao
- Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, 812-8582 Fukuoka, Higashi-ku, Japan
| | - K Yamashita
- Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, 812-8582 Fukuoka, Higashi-ku, Japan
| | - D Momosaka
- Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, 812-8582 Fukuoka, Higashi-ku, Japan
| | - H Honda
- Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, 812-8582 Fukuoka, Higashi-ku, Japan
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41
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Sakai M, Takeuchi H, Yu Z, Kikuchi Y, Ono C, Takahashi Y, Ito F, Matsuoka H, Tanabe O, Yasuda J, Taki Y, Kawashima R, Tomita H. Polymorphisms in the microglial marker molecule CX3CR1 affect the blood volume of the human brain. Psychiatry Clin Neurosci 2018; 72:409-422. [PMID: 29485193 DOI: 10.1111/pcn.12649] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 02/12/2018] [Accepted: 02/21/2018] [Indexed: 12/18/2022]
Abstract
AIM CX3CR1, a G-protein-coupled receptor, is involved in various inflammatory processes. Two non-synonymous single nucleotide polymorphisms, V249I (rs3732379) and T280M (rs3732378), are located in the sixth and seventh transmembrane domains of the CX3CR1 protein, respectively. Previous studies have indicated significant associations between T280M and leukocyte functional characteristics, including adhesion, signaling, and chemotaxis, while the function of V249I is unclear. In the brain, microglia are the only proven and widely accepted CX3CR1-expressing cells. This study aimed to specify whether there were specific brain regions on which these two single nucleotide polymorphisms exert their biological impacts through their functional effects on microglia. METHODS Associations between the single nucleotide polymorphisms and brain characteristics, including gray and white matter volumes, white matter integrity, resting arterial blood volume, and cerebral blood flow, were evaluated among 1300 healthy Japanese individuals. RESULTS The major allele carriers (V249 and T280) were significantly associated with an increased total arterial blood volume of the whole brain, especially around the bilateral precuneus, left posterior cingulate cortex, and left posterior parietal cortex. There were no significant associations between the genotypes and other brain structural indicators. CONCLUSION This finding suggests that the CX3CR1 variants may affect arterial structures in the brain, possibly via interactions between microglia and brain microvascular endothelial cells.
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Affiliation(s)
- Mai Sakai
- Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan.,Department of Disaster Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan.,Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Hikaru Takeuchi
- Division of Developmental Cognitive Neuroscience, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Zhiqian Yu
- Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan.,Department of Disaster Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan.,Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Yoshie Kikuchi
- Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan.,Department of Disaster Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan.,Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Chiaki Ono
- Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan.,Department of Disaster Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan.,Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Yuta Takahashi
- Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan.,Department of Disaster Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan.,Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan.,Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Fumiaki Ito
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Hiroo Matsuoka
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Osamu Tanabe
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Jun Yasuda
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Yasuyuki Taki
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan.,Department of Nuclear Medicine and Radiology, Tohoku University, Sendai, Japan
| | - Ryuta Kawashima
- Division of Developmental Cognitive Neuroscience, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan.,Department of Functional Brain Imaging, Smart Aging Research Center, Tohoku University, Sendai, Japan
| | - Hiroaki Tomita
- Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan.,Department of Disaster Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan.,Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
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42
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Shimbo T, Sasaki E, Kitayama T, Yamazaki S, Nishida M, Ouchi Y, Yamamoto R, Bruckner-Tuderman L, Uitto J, Kikuchi Y, Katayama I, Kaneda Y, Tamai K. 843 Systemic delivery of HMGB1 promotes tissue regeneration by activating PDGFRα cells in a mouse model of epidermolysis bullosa. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.853] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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43
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Noji S, Sakai H, Aoi N, Baba H, Berg GPA, Doornenbal P, Dozono M, Fukuda N, Inabe N, Kameda D, Kawabata T, Kawase S, Kikuchi Y, Kisamori K, Kubo T, Maeda Y, Matsubara H, Michimasa S, Miki K, Miya H, Miyasako H, Sakaguchi S, Sasamoto Y, Shimoura S, Takaki M, Takeda H, Takeuchi S, Tokieda H, Ohnishi T, Ota S, Uesaka T, Wang H, Yako K, Yanagisawa Y, Yokota N, Yoshida K, Zegers RGT. Excitation of the Isovector Spin Monopole Resonance via the Exothermic ^{90}Zr(^{12}N,^{12}C) Reaction at 175 MeV/u. Phys Rev Lett 2018; 120:172501. [PMID: 29756826 DOI: 10.1103/physrevlett.120.172501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 03/09/2018] [Indexed: 06/08/2023]
Abstract
The (^{12}N, ^{12}C) charge-exchange reaction at 175 MeV/u was developed as a novel probe for studying the isovector spin giant monopole resonance (IVSMR), whose properties are important for better understanding the bulk properties of nuclei and asymmetric nuclear matter. This probe, now available through the production of ^{12}N as a secondary rare-isotope beam, is exothermic, is strongly absorbed at the surface of the target nucleus, and provides selectivity for spin-transfer excitations. All three properties enhance the excitation of the IVSMR compared to other, primarily light-ion, probes, which have been used to study the IVSMR thus far. The ^{90}Zr(^{12}N,^{12}C) reaction was measured and the excitation energy spectra up to about 70 MeV for both the spin-transfer and non-spin-transfer channels were deduced separately by tagging the decay by γ emission from the ^{12}C ejectile. Besides the well-known Gamow-Teller and isobaric analog transitions, a clear signature of the IVSMR was identified. By comparing with the results from light-ion reactions on the same target nucleus and theoretical predictions, the suitability of this new probe for studying the IVSMR was confirmed.
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Affiliation(s)
- S Noji
- Department of Physics, University of Tokyo, Hongo, Bunkyo, Tokyo 113-0033, Japan
- Center for Nuclear Study, University of Tokyo, RIKEN Campus, Wako, Saitama 351-0198, Japan
| | - H Sakai
- Department of Physics, University of Tokyo, Hongo, Bunkyo, Tokyo 113-0033, Japan
- RIKEN Nishina Center, Hirosawa, Wako, Saitama 351-0198, Japan
| | - N Aoi
- RIKEN Nishina Center, Hirosawa, Wako, Saitama 351-0198, Japan
| | - H Baba
- RIKEN Nishina Center, Hirosawa, Wako, Saitama 351-0198, Japan
| | - G P A Berg
- Department of Physics, University of Notre Dame, Nieuwland Science Hall, Notre Dame, Indiana 46556, USA
- The JINA Center for the Evolution of the Elements, Michigan State University, East Lansing, Michigan 48824, USA
| | - P Doornenbal
- RIKEN Nishina Center, Hirosawa, Wako, Saitama 351-0198, Japan
| | - M Dozono
- RIKEN Nishina Center, Hirosawa, Wako, Saitama 351-0198, Japan
| | - N Fukuda
- RIKEN Nishina Center, Hirosawa, Wako, Saitama 351-0198, Japan
| | - N Inabe
- RIKEN Nishina Center, Hirosawa, Wako, Saitama 351-0198, Japan
| | - D Kameda
- RIKEN Nishina Center, Hirosawa, Wako, Saitama 351-0198, Japan
| | - T Kawabata
- Department of Physics, Kyoto University, Kitashirakawa, Oiwakecho, Sakyo, Kyoto 606-8502, Japan
| | - S Kawase
- Center for Nuclear Study, University of Tokyo, RIKEN Campus, Wako, Saitama 351-0198, Japan
| | - Y Kikuchi
- Center for Nuclear Study, University of Tokyo, RIKEN Campus, Wako, Saitama 351-0198, Japan
| | - K Kisamori
- Center for Nuclear Study, University of Tokyo, RIKEN Campus, Wako, Saitama 351-0198, Japan
| | - T Kubo
- RIKEN Nishina Center, Hirosawa, Wako, Saitama 351-0198, Japan
| | - Y Maeda
- Department of Applied Physics, University of Miyazaki, Miyazaki, Miyazaki 889-2192, Japan
| | - H Matsubara
- Center for Nuclear Study, University of Tokyo, RIKEN Campus, Wako, Saitama 351-0198, Japan
| | - S Michimasa
- Center for Nuclear Study, University of Tokyo, RIKEN Campus, Wako, Saitama 351-0198, Japan
| | - K Miki
- Department of Physics, University of Tokyo, Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - H Miya
- Center for Nuclear Study, University of Tokyo, RIKEN Campus, Wako, Saitama 351-0198, Japan
| | - H Miyasako
- Department of Applied Physics, University of Miyazaki, Miyazaki, Miyazaki 889-2192, Japan
| | - S Sakaguchi
- Department of Physics, Kyushu University, Nishi, Fukuoka 819-0395, Japan
| | - Y Sasamoto
- Center for Nuclear Study, University of Tokyo, RIKEN Campus, Wako, Saitama 351-0198, Japan
| | - S Shimoura
- Center for Nuclear Study, University of Tokyo, RIKEN Campus, Wako, Saitama 351-0198, Japan
| | - M Takaki
- Center for Nuclear Study, University of Tokyo, RIKEN Campus, Wako, Saitama 351-0198, Japan
| | - H Takeda
- RIKEN Nishina Center, Hirosawa, Wako, Saitama 351-0198, Japan
| | - S Takeuchi
- RIKEN Nishina Center, Hirosawa, Wako, Saitama 351-0198, Japan
| | - H Tokieda
- Center for Nuclear Study, University of Tokyo, RIKEN Campus, Wako, Saitama 351-0198, Japan
| | - T Ohnishi
- RIKEN Nishina Center, Hirosawa, Wako, Saitama 351-0198, Japan
| | - S Ota
- Center for Nuclear Study, University of Tokyo, RIKEN Campus, Wako, Saitama 351-0198, Japan
| | - T Uesaka
- Center for Nuclear Study, University of Tokyo, RIKEN Campus, Wako, Saitama 351-0198, Japan
| | - H Wang
- RIKEN Nishina Center, Hirosawa, Wako, Saitama 351-0198, Japan
| | - K Yako
- Department of Physics, University of Tokyo, Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - Y Yanagisawa
- RIKEN Nishina Center, Hirosawa, Wako, Saitama 351-0198, Japan
| | - N Yokota
- Department of Physics, Kyoto University, Kitashirakawa, Oiwakecho, Sakyo, Kyoto 606-8502, Japan
| | - K Yoshida
- RIKEN Nishina Center, Hirosawa, Wako, Saitama 351-0198, Japan
| | - R G T Zegers
- The JINA Center for the Evolution of the Elements, Michigan State University, East Lansing, Michigan 48824, USA
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
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Yambe T, Nitta S, Katahira Y, Sonobe T, Naganuma S, Akiho H, Kakinuma Y, Izutzu K, Kikuchi Y, Naganuma T, Kobayashi S, Matsuzawa H, Tanaka M, Miura M, Sato N, Fukuju T, Mohri H, Yoshizawa M, Takeda H. Estimation of the following Cardiac Output Using Sympathetic Tone and Hemodynamics for the Control of a Total Artificial Heart. Int J Artif Organs 2018. [DOI: 10.1177/039139889201501007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A sympathetic neurogram is potentially useful for the development of a real time total artificial heart (TAH) control system. We used sympathetic tone and hemodynamic derivatives to estimate the following cardiac output in acute animal experiments using adult mongrel dogs. Moving averages of the mean left atrial pressure and mean aortic pressure were used as parameters of the preload and afterload, respectively. Renal sympathetic nerve activity (RSNA) was employed as a parameter of sympathetic tone. Equations for the following cardiac output were calculated using multiple linear regression analysis of the time series data. A significant correlation was observed between the estimated and following measured cardiac output. These results suggest the potential usefulness of the sympathetic neurogram for the real time TAH automatic control system.
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Affiliation(s)
- T. Yambe
- Department of Medical Engineering and Cardiology, Research Institute for Chest Diseases and Cancer
| | - S. Nitta
- Department of Medical Engineering and Cardiology, Research Institute for Chest Diseases and Cancer
| | - Y. Katahira
- Department of Medical Engineering and Cardiology, Research Institute for Chest Diseases and Cancer
| | - T. Sonobe
- Department of Medical Engineering and Cardiology, Research Institute for Chest Diseases and Cancer
| | - S. Naganuma
- Department of Medical Engineering and Cardiology, Research Institute for Chest Diseases and Cancer
| | - H. Akiho
- Department of Medical Engineering and Cardiology, Research Institute for Chest Diseases and Cancer
| | - Y. Kakinuma
- Department of Medical Engineering and Cardiology, Research Institute for Chest Diseases and Cancer
| | - K. Izutzu
- Department of Medical Engineering and Cardiology, Research Institute for Chest Diseases and Cancer
| | - Y. Kikuchi
- Department of Medical Engineering and Cardiology, Research Institute for Chest Diseases and Cancer
| | - T. Naganuma
- Department of Medical Engineering and Cardiology, Research Institute for Chest Diseases and Cancer
| | - S. Kobayashi
- Department of Medical Engineering and Cardiology, Research Institute for Chest Diseases and Cancer
| | - H. Matsuzawa
- Department of Medical Engineering and Cardiology, Research Institute for Chest Diseases and Cancer
| | - M. Tanaka
- Department of Medical Engineering and Cardiology, Research Institute for Chest Diseases and Cancer
| | - M. Miura
- Department of Medical Engineering and Cardiology, Research Institute for Chest Diseases and Cancer
| | - N. Sato
- Department of Medical Engineering and Cardiology, Research Institute for Chest Diseases and Cancer
| | - T. Fukuju
- Department of Thoracic and Cardiovascular Surgery, School of Medicine, Tohoku University
| | - H. Mohri
- Department of Thoracic and Cardiovascular Surgery, School of Medicine, Tohoku University
| | - M. Yoshizawa
- Department of Electrical Communications, Faculty of Engineering
| | - H. Takeda
- Department of Electrical Engineering, Faculty of Engineering, Tohoku University, Sendai - Japan
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45
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Ohnishi K, Harada H, Nakamura N, Tokumaru S, Wada H, Arimura T, Iwata H, Sato Y, Sekino Y, Tamamura H, Mizoe J, Ogino T, Ishikawa H, Kikuchi Y, Okimoto T, Murayama S, Akimoto T, Sakurai H. P2.05-005 Proton Beam Therapy for Early Stage Lung Cancer: A Multi-Institutional Retrospective Study in Japan. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.11.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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46
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Shimbo T, Nishida M, Kitayama T, Yamamoto R, Takaki E, Kikuchi Y, Kaneda Y, Tamai K. 671 Comprehensive analysis on HMGB1-induced circulating cells during cutaneous tissue regeneration. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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47
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Kikuchi Y, Ito K, Shindo T, Hao K, Shiroto T, Matsumoto Y, Takahashi J, Matsubara T, Yamada A, Ozaki Y, Hiroe M, Misumi K, Tomata Y, Tsuji I, Shimokawa H. P4023A multicenter trial of extracorporeal cardiac shock wave therapy for refractory angina pectoris - Results from the highly advanced medical treatment in Japan. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p4023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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48
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Suda A, Takahashi J, Hao K, Kikuchi Y, Shindo T, Komatsu M, Odaka Y, Matsumoto Y, Miyata S, Sakata Y, Shimokawa H. 1057Important prognostic impact of comorbid coronary microvascular dysfunction in patients with vasospastic angina. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.1057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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49
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Tomura N, Kokubun M, Saginoya T, Mizuno Y, Kikuchi Y. Differentiation between Treatment-Induced Necrosis and Recurrent Tumors in Patients with Metastatic Brain Tumors: Comparison among 11C-Methionine-PET, FDG-PET, MR Permeability Imaging, and MRI-ADC-Preliminary Results. AJNR Am J Neuroradiol 2017; 38:1520-1527. [PMID: 28619837 DOI: 10.3174/ajnr.a5252] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 04/04/2017] [Indexed: 12/24/2022]
Abstract
BACKGROUND AND PURPOSE In patients with metastatic brain tumors after gamma knife radiosurgery, the superiority of PET using 11C-methionine for differentiating radiation necrosis and recurrent tumors has been accepted. To evaluate the feasibility of MR permeability imaging, it was compared with PET using 11C-methionine, FDG-PET, and DWI for differentiating radiation necrosis from recurrent tumors. MATERIALS AND METHODS The study analyzed 18 lesions from 15 patients with metastatic brain tumors who underwent gamma knife radiosurgery. Ten lesions were identified as recurrent tumors by an operation. In MR permeability imaging, the transfer constant between intra- and extravascular extracellular spaces (/minute), extravascular extracellular space, the transfer constant from the extravascular extracellular space to plasma (/minute), the initial area under the signal intensity-time curve, contrast-enhancement ratio, bolus arrival time (seconds), maximum slope of increase (millimole/second), and fractional plasma volume were calculated. ADC was also acquired. On both PET using 11C-methionine and FDG-PET, the ratio of the maximum standard uptake value of the lesion divided by the maximum standard uptake value of the symmetric site in the contralateral cerebral hemisphere was measured (11C-methionine ratio and FDG ratio, respectively). The receiver operating characteristic curve was used for analysis. RESULTS The area under the receiver operating characteristic curve for differentiating radiation necrosis from recurrent tumors was the best for the 11C-methionine ratio (0.90) followed by the contrast-enhancement ratio (0.81), maximum slope of increase (millimole/second) (0.80), the initial area under the signal intensity-time curve (0.78), fractional plasma volume (0.76), bolus arrival time (seconds) (0.76), the transfer constant between intra- and extravascular extracellular spaces (/minute) (0.74), extravascular extracellular space (0.68), minimum ADC (0.60), the transfer constant from the extravascular extracellular space to plasma (/minute) (0.55), and the FDG-ratio (0.53). A significant difference in the 11C-methionine ratio (P < .01), contrast-enhancement ratio (P < .01), maximum slope of increase (millimole/second) (P < .05), and the initial area under the signal intensity-time curve (P < .05) was evident between radiation necrosis and recurrent tumor. CONCLUSIONS The present study suggests that PET using 11C-methionine may be superior to MR permeability imaging, ADC, and FDG-PET for differentiating radiation necrosis from recurrent tumors after gamma knife radiosurgery for metastatic brain tumors.
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Affiliation(s)
- N Tomura
- From the Departments of Neuroradiology, Radiology, and Neurosurgery, Southern Tohoku Research Institute for Neuroscience, Southern Tohoku General Hospital, Koriyama City, Fukushima, Japan.
| | - M Kokubun
- From the Departments of Neuroradiology, Radiology, and Neurosurgery, Southern Tohoku Research Institute for Neuroscience, Southern Tohoku General Hospital, Koriyama City, Fukushima, Japan
| | - T Saginoya
- From the Departments of Neuroradiology, Radiology, and Neurosurgery, Southern Tohoku Research Institute for Neuroscience, Southern Tohoku General Hospital, Koriyama City, Fukushima, Japan
| | - Y Mizuno
- From the Departments of Neuroradiology, Radiology, and Neurosurgery, Southern Tohoku Research Institute for Neuroscience, Southern Tohoku General Hospital, Koriyama City, Fukushima, Japan
| | - Y Kikuchi
- From the Departments of Neuroradiology, Radiology, and Neurosurgery, Southern Tohoku Research Institute for Neuroscience, Southern Tohoku General Hospital, Koriyama City, Fukushima, Japan
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50
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Ohyama K, Matsumoto Y, Takanami K, Ota H, Nishimiya K, Sugisawa J, Amamizu H, Uzuka H, Suda A, Shindo T, Kikuchi Y, Hao K, Takahashi J, Sakata Y, Shimokawa H. 1059Evidence for enhanced inflammation of coronary adventitia and perivascular adipose tissue in patients with vasospastic angina - a multi-modality imaging study-. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.1059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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