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Yamauchi S, Kawano N, Shimazaki K, Shinkai H, Kojima M, Shinohara K, Aoki H. Digital clock drawing test reflects visuospatial ability of older drivers. Front Psychol 2024; 15:1332118. [PMID: 38469215 PMCID: PMC10925675 DOI: 10.3389/fpsyg.2024.1332118] [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: 11/03/2023] [Accepted: 02/14/2024] [Indexed: 03/13/2024] Open
Abstract
Objectives To keep older drivers safe, it is necessary to assess their fitness to drive. We developed a touch screen-based digital Clock Drawing Test (dCDT) and examined the relationship between the dCDT scores and on-road driving performance of older drivers in a community-setting. Methods One hundred and forty-one community-dwelling older drivers (range; 64-88 years old) who participated in this study were included in the analysis. Participants completed the dCDT, the Mini-Mental State Examination-Japanese (MMSE-J), and an on-road driving assessment. We examined the relationship between dCDT scores using the method by Rouleau et al. (maximum 10 points) and the on-road driving performance based on a driving assessment system originally developed by Nagoya University. Results Multiple regression analyses showed that errors in the driving test were associated with dCDT score for the items "confirmation," "turning left" and "maintains driving lane position". Discussion This study confirmed the relationship between the dCDT score and driving errors, such as confirmation, turning left and maintaining driving lane position. The increase in these errors indicates a decline in visuospatial ability while driving. The dCDT score may reflect older drivers' visuospatial abilities while driving.
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Affiliation(s)
- Satsuki Yamauchi
- Institutes of Innovation for Future Society, Nagoya University, Nagoya, Aichi, Japan
| | - Naoko Kawano
- Institutes of Innovation for Future Society, Nagoya University, Nagoya, Aichi, Japan
- Graduate School of Sustainable System Sciences, Osaka Metropolitan University, Osaka, Japan
| | - Kan Shimazaki
- Institutes of Innovation for Future Society, Nagoya University, Nagoya, Aichi, Japan
- Faculty of Biology-Oriented Science and Technology, Kindai University, Wakayama, Japan
| | - Hiroko Shinkai
- Institutes of Innovation for Future Society, Nagoya University, Nagoya, Aichi, Japan
| | - Masae Kojima
- Institutes of Innovation for Future Society, Nagoya University, Nagoya, Aichi, Japan
| | | | - Hirofumi Aoki
- Institutes of Innovation for Future Society, Nagoya University, Nagoya, Aichi, Japan
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2
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Shimoda M, Kaneko K, Nakagawa T, Kawano N, Otsuka R, Ota A, Naito H, Matsunaga M, Ichino N, Yamada H, Chiang C, Hirakawa Y, Tamakoshi K, Aoyama A, Yatsuya H. Relationship Between Fasting Blood Glucose Levels in Middle Age and Cognitive Function in Later Life: The Aichi Workers' Cohort Study. J Epidemiol 2023; 33:76-81. [PMID: 34024876 PMCID: PMC9794446 DOI: 10.2188/jea.je20210128] [Citation(s) in RCA: 1] [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] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND There is limited evidence regarding the relationship between Diabetes mellitus (DM) in middle age and mild cognitive impairment after a follow-up. Therefore, we investigated the relationship between fasting blood glucose (FBG) levels in middle age and cognitive function assessed using the Japanese version of the Montreal Cognitive Assessment (MoCA-J) in later life, following over 15 years of follow-up in the Aichi Workers' Cohort Study in Japan. METHODS Participants were 253 former local government employees aged 60-79 years in 2018 who participated in a baseline survey conducted in 2002. Using baseline FBG levels and self-reported history, participants were classified into the normal, impaired fasting glucose (IFG) and, and DM groups. Total MoCA-J score ranges from 0 to 30, and cognitive impairment was defined as MoCA-J score ≤25 in this study. A general linear model was used to estimate the mean MoCA-J scores in the FBG groups, adjusted for age, sex, educational year, smoking status, alcohol consumption, physical activity, body mass index, systolic blood pressure, total cholesterol, and estimated glomerular filtration rate. RESULTS The mean MoCA-J score in the total population was 25.0, and the prevalence of MoCA-J score ≤25 was 49.0%. Multivariable-adjusted total MoCA-J scores were 25.2, 24.8, and 23.4 in the normal, IFG, and DM groups, respectively. The odds ratio of MoCA-J score ≤25 in the DM group was 3.29. CONCLUSION FBG level in middle age was negatively associated with total MoCA-J scores assessed later in life, independent of confounding variables.
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Affiliation(s)
- Masako Shimoda
- Department of Public Health and Health Systems, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kayo Kaneko
- Department of Occupational and Environmental Health, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
| | | | | | - Rei Otsuka
- National Center for Geriatrics and Gerontology, Aichi, Japan
| | - Atsuhiko Ota
- Department of Public Health, Fujita Health University School of Medicine, Aichi, Japan
| | - Hisao Naito
- Department of Public Health, Fujita Health University School of Medicine, Aichi, Japan
| | - Masaaki Matsunaga
- Department of Public Health, Fujita Health University School of Medicine, Aichi, Japan
| | - Naohiro Ichino
- Department of Public Health, Fujita Health University School of Medicine, Aichi, Japan
| | - Hiroya Yamada
- Department of Public Health, Fujita Health University School of Medicine, Aichi, Japan
| | - Chifa Chiang
- Department of Public Health and Health Systems, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoshihisa Hirakawa
- Department of Public Health and Health Systems, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Koji Tamakoshi
- Department of Nursing, Nagoya University School of Health Sciences, Nagoya, Japan
| | - Atsuko Aoyama
- Nagoya University of Arts and Sciences, Aichi, Japan
| | - Hiroshi Yatsuya
- Department of Public Health and Health Systems, Nagoya University Graduate School of Medicine, Nagoya, Japan,Department of Public Health, Fujita Health University School of Medicine, Aichi, Japan
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3
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Inoue K, Fujita Y, Kawano N. The need to devise government-spearheaded measures to prevent loneliness and isolation in conjunction with the spread of COVID-19 in Japan. Public Health 2021; 198:e3. [PMID: 34016460 PMCID: PMC8020074 DOI: 10.1016/j.puhe.2021.03.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 03/17/2021] [Indexed: 11/18/2022]
Affiliation(s)
- K Inoue
- Research and Education Faculty, Medical Sciences Cluster, Health Service Center, Kochi University, 2-5-1 Akebono-cho, Kochi-shi, Kochi 780-8520, Japan.
| | - Y Fujita
- Faculty of Medicine, Shimane University, 89-1, Enya-cho, Izumo, Shimane 693-8501, Japan.
| | - N Kawano
- The Center for Peace, Hiroshima University, 1-1-89, Higashisendamachi, Naka-ku, Hiroshima-shi, Hiroshima 730-0053, Japan.
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4
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Yamasue H, Okada T, Munesue T, Kuroda M, Fujioka T, Uno Y, Matsumoto K, Kuwabara H, Mori D, Okamoto Y, Yoshimura Y, Kawakubo Y, Arioka Y, Kojima M, Yuhi T, Owada K, Yassin W, Kushima I, Benner S, Ogawa N, Eriguchi Y, Kawano N, Uemura Y, Yamamoto M, Kano Y, Kasai K, Higashida H, Ozaki N, Kosaka H. Effect of intranasal oxytocin on the core social symptoms of autism spectrum disorder: a randomized clinical trial. Mol Psychiatry 2020; 25:1849-1858. [PMID: 29955161 DOI: 10.1038/s41380-018-0097-2] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [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] [Received: 11/08/2017] [Revised: 02/20/2018] [Accepted: 03/06/2018] [Indexed: 12/27/2022]
Abstract
Although small-scale studies have described the effects of oxytocin on social deficits in autism spectrum disorder (ASD), no large-scale study has been conducted. In this randomized, parallel-group, multicenter, placebo-controlled, double-blind trial in Japan, 106 ASD individuals (18-48 y.o.) were enrolled between Jan 2015 and March 2016. Participants were randomly assigned to a 6-week intranasal oxytocin (48IU/day, n = 53) or placebo (n = 53) group. One-hundred-three participants were analyzed. Since oxytocin reduced the primary endpoint, Autism Diagnostic Observation Schedule (ADOS) reciprocity, (from 8.5 to 7.7; P < .001) but placebo also reduced the score (8.3 to 7.2; P < .001), no between-group difference was found (effect size -0.08; 95% CI, -0.46 to 0.31; P = .69); however, plasma oxytocin was only elevated from baseline to endpoint in the oxytocin-group compared with the placebo-group (effect size -1.12; -1.53 to -0.70; P < .0001). Among the secondary endpoints, oxytocin reduced ADOS repetitive behavior (2.0 to 1.5; P < .0001) compared with placebo (2.0 to 1.8; P = .43) (effect size 0.44; 0.05 to 0.83; P = .026). In addition, the duration of gaze fixation on socially relevant regions, another secondary endpoint, was increased by oxytocin (41.2 to 52.3; P = .03) compared with placebo (45.7 to 40.4; P = .25) (effect size 0.55; 0.10 to 1.0; P = .018). No significant effects were observed for the other secondary endpoints. No significant difference in the prevalence of adverse events was observed between groups, although one participant experienced temporary gynecomastia during oxytocin administration. Based on the present findings, we cannot recommend continuous intranasal oxytocin treatment alone at the current dose and duration for treatment of the core social symptoms of high-functioning ASD in adult men, although this large-scale trial suggests oxytocin's possibility to treat ASD repetitive behavior.
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Affiliation(s)
- Hidenori Yamasue
- Department of Psychiatry, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashiku, Hamamatsu City, 431-3192, Japan. .,Department of Neuropsychiatry, School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.
| | - Takashi Okada
- Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Toshio Munesue
- Research Center for Child Mental Development, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8640, Japan
| | - Miho Kuroda
- Department of Child Neuropsychiatry, School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Toru Fujioka
- Research Center for Child Mental Development, University of Fukui, Eiheiji, Fukui, 910-1193, Japan
| | - Yota Uno
- Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan.,Laboratory for Psychiatric and Molecular Neuroscience, McLean Hospital, 115 Mill Street, Belmont, MA, 02478, USA
| | - Kaori Matsumoto
- Graduate School of Psychology, Kanazawa Institute of Technology, 7-1 Ohgigaoka, Nonoichi, 921-8054, Japan
| | - Hitoshi Kuwabara
- Department of Child Neuropsychiatry, School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.,Department of Child Development, United Graduate School of Child Development at Hamamatsu, Handayama 1 Higashiku, Hamamatsu, 431-3192, Japan
| | - Daisuke Mori
- Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan.,Brain and Mind Research Center, Nagoya University, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Yuko Okamoto
- Research Center for Child Mental Development, University of Fukui, Eiheiji, Fukui, 910-1193, Japan
| | - Yuko Yoshimura
- Research Center for Child Mental Development, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8640, Japan
| | - Yuki Kawakubo
- Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan.,Department of Child Neuropsychiatry, School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Yuko Arioka
- Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Masaki Kojima
- Department of Child Neuropsychiatry, School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Teruko Yuhi
- Research Center for Child Mental Development, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8640, Japan
| | - Keiho Owada
- Department of Child Neuropsychiatry, School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Walid Yassin
- Department of Child Neuropsychiatry, School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Itaru Kushima
- Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Seico Benner
- Department of Child Neuropsychiatry, School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Nanayo Ogawa
- Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Yosuke Eriguchi
- Department of Child Neuropsychiatry, School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Naoko Kawano
- Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Yukari Uemura
- Biostatistics Division, Clinical Research Support Center, University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Maeri Yamamoto
- Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Yukiko Kano
- Department of Child Neuropsychiatry, School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Kiyoto Kasai
- Department of Neuropsychiatry, School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Haruhiro Higashida
- Research Center for Child Mental Development, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8640, Japan
| | - Norio Ozaki
- Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Hirotaka Kosaka
- Research Center for Child Mental Development, University of Fukui, Eiheiji, Fukui, 910-1193, Japan.,Department of Neuropsychiatry, Faculty of Medical Sciences, University of Fukui, Eiheiji, Fukui, 910-1193, Japan
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5
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Owada K, Okada T, Munesue T, Kuroda M, Fujioka T, Uno Y, Matsumoto K, Kuwabara H, Mori D, Okamoto Y, Yoshimura Y, Kawakubo Y, Arioka Y, Kojima M, Yuhi T, Yassin W, Kushima I, Benner S, Ogawa N, Kawano N, Eriguchi Y, Uemura Y, Yamamoto M, Kano Y, Kasai K, Higashida H, Ozaki N, Kosaka H, Yamasue H. Quantitative facial expression analysis revealed the efficacy and time course of oxytocin in autism. Brain 2020; 142:2127-2136. [PMID: 31096266 DOI: 10.1093/brain/awz126] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [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: 11/28/2018] [Revised: 02/09/2019] [Accepted: 03/10/2019] [Indexed: 11/14/2022] Open
Abstract
Discrepancies in efficacy between single-dose and repeated administration of oxytocin for autism spectrum disorder have led researchers to hypothesize that time-course changes in efficacy are induced by repeated administrations of the peptide hormone. However, repeatable, objective, and quantitative measurement of autism spectrum disorder's core symptoms are lacking, making it difficult to examine potential time-course changes in efficacy. We tested this hypothesis using repeatable, objective, and quantitative measurement of the core symptoms of autism spectrum disorder. We examined videos recorded during semi-structured social interaction administered as the primary outcome in single-site exploratory (n = 18, crossover within-subjects design) and multisite confirmatory (n = 106, parallel-group design), double-blind, placebo-controlled 6-week trials of repeated intranasal administrations of oxytocin (48 IU/day) in adult males with autism spectrum disorder. The main outcomes were statistical representative values of objectively quantified facial expression intensity in a repeatable part of the Autism Diagnostic Observation Schedule: the maximum probability (i.e. mode) and the natural logarithm of mode on the probability density function of neutral facial expression and the natural logarithm of mode on the probability density function of happy expression. Our recent study revealed that increases in these indices characterize autistic facial expression, compared with neurotypical individuals. The current results revealed that oxytocin consistently and significantly decreased the increased natural logarithm of mode on the probability density function of neutral facial expression compared with placebo in exploratory (effect-size, -0.57; 95% CI, -1.27 to 0.13; P = 0.023) and confirmatory trials (-0.41; -0.62 to -0.20; P < 0.001). A significant interaction between time-course (at baseline, 2, 4, 6, and 8 weeks) and the efficacy of oxytocin on the natural logarithm of mode on the probability density function of neutral facial expression was found in confirmatory trial (P < 0.001). Post hoc analyses revealed maximum efficacy at 2 weeks (P < 0.001, Cohen's d = -0.78; 95% CI, -1.21 to -0.35) and deterioration of efficacy at 4 weeks (P = 0.042, Cohen's d = -0.46; 95% CI, -0.90 to -0.01) and 6 weeks (P = 0.10, Cohen's d = -0.35; 95% CI, -0.77 to 0.08), while efficacy was preserved at 2 weeks post-treatment (i.e. 8 weeks) (P < 0.001, Cohen's d = -1.24; 95% CI, -1.71 to -0.78). Quantitative facial expression analyses successfully verified the positive effects of repeated oxytocin on autistic individuals' facial expressions and demonstrated a time-course change in efficacy. The current findings support further development of an optimized regimen of oxytocin treatment.
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Affiliation(s)
- Keiho Owada
- Department of Child Neuropsychiatry, School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan.,Department of Pediatrics, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - Takashi Okada
- Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, Japan
| | - Toshio Munesue
- Research Center for Child Mental Development, Kanazawa University, 13-1 Takara-machi, Kanazawa, Japan
| | - Miho Kuroda
- Department of Child Neuropsychiatry, School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - Toru Fujioka
- Research Center for Child Mental Development, University of Fukui, Eiheiji, Fukui, Japan
| | - Yota Uno
- Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, Japan.,Laboratory for Psychiatric and Molecular Neuroscience, McLean Hospital, 115 Mill Street Belmont, MA, USA
| | - Kaori Matsumoto
- Graduate School of Psychology, Kanazawa Institute of Technology, 7-1 Ohgigaoka, Nonoichi, Japan
| | - Hitoshi Kuwabara
- Department of Psychiatry, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashiku, Hamamatsu City, Japan
| | - Daisuke Mori
- Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, Japan.,Brain and Mind Research Center, Nagoya University, Nagoya, Aichi, Japan 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, Japan
| | - Yuko Okamoto
- Research Center for Child Mental Development, University of Fukui, Eiheiji, Fukui, Japan
| | - Yuko Yoshimura
- Research Center for Child Mental Development, Kanazawa University, 13-1 Takara-machi, Kanazawa, Japan
| | - Yuki Kawakubo
- Department of Child Neuropsychiatry, School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - Yuko Arioka
- Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, Japan
| | - Masaki Kojima
- Department of Child Neuropsychiatry, School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - Teruko Yuhi
- Research Center for Child Mental Development, Kanazawa University, 13-1 Takara-machi, Kanazawa, Japan
| | - Walid Yassin
- Department of Child Neuropsychiatry, School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - Itaru Kushima
- Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, Japan
| | - Seico Benner
- Department of Child Neuropsychiatry, School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan.,Department of Psychiatry, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashiku, Hamamatsu City, Japan
| | - Nanayo Ogawa
- Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, Japan
| | - Naoko Kawano
- Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, Japan
| | - Yosuke Eriguchi
- Department of Child Neuropsychiatry, School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - Yukari Uemura
- Biostatistics Division, Clinical Research Support Center, University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - Maeri Yamamoto
- Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, Japan
| | - Yukiko Kano
- Department of Child Neuropsychiatry, School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - Kiyoto Kasai
- Department of Neuropsychiatry, School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan.,The International Research Center for Neurointelligence (WPI-IRCN) at The University of Tokyo Institutes for Advanced Study (UTIAS), Fukui, Japan.,UTokyo Center for Integrative Science of Human Behavior (CiSHuB), Fukui, Japan
| | - Haruhiro Higashida
- Research Center for Child Mental Development, Kanazawa University, 13-1 Takara-machi, Kanazawa, Japan
| | - Norio Ozaki
- Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, Japan
| | - Hirotaka Kosaka
- Research Center for Child Mental Development, University of Fukui, Eiheiji, Fukui, Japan.,Department of Neuropsychiatry, Faculty of Medical Sciences, University of Fukui, Eiheiji, Fukui, Japan
| | - Hidenori Yamasue
- Department of Psychiatry, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashiku, Hamamatsu City, Japan.,Department of Neuropsychiatry, School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
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6
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Kushima I, Aleksic B, Nakatochi M, Shimamura T, Okada T, Uno Y, Morikawa M, Ishizuka K, Shiino T, Kimura H, Arioka Y, Yoshimi A, Takasaki Y, Yu Y, Nakamura Y, Yamamoto M, Iidaka T, Iritani S, Inada T, Ogawa N, Shishido E, Torii Y, Kawano N, Omura Y, Yoshikawa T, Uchiyama T, Yamamoto T, Ikeda M, Hashimoto R, Yamamori H, Yasuda Y, Someya T, Watanabe Y, Egawa J, Nunokawa A, Itokawa M, Arai M, Miyashita M, Kobori A, Suzuki M, Takahashi T, Usami M, Kodaira M, Watanabe K, Sasaki T, Kuwabara H, Tochigi M, Nishimura F, Yamasue H, Eriguchi Y, Benner S, Kojima M, Yassin W, Munesue T, Yokoyama S, Kimura R, Funabiki Y, Kosaka H, Ishitobi M, Ohmori T, Numata S, Yoshikawa T, Toyota T, Yamakawa K, Suzuki T, Inoue Y, Nakaoka K, Goto YI, Inagaki M, Hashimoto N, Kusumi I, Son S, Murai T, Ikegame T, Okada N, Kasai K, Kunimoto S, Mori D, Iwata N, Ozaki N. Comparative Analyses of Copy-Number Variation in Autism Spectrum Disorder and Schizophrenia Reveal Etiological Overlap and Biological Insights. Cell Rep 2019; 24:2838-2856. [PMID: 30208311 DOI: 10.1016/j.celrep.2018.08.022] [Citation(s) in RCA: 147] [Impact Index Per Article: 29.4] [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: 01/17/2018] [Revised: 05/24/2018] [Accepted: 08/08/2018] [Indexed: 01/06/2023] Open
Abstract
Compelling evidence in Caucasian populations suggests a role for copy-number variations (CNVs) in autism spectrum disorder (ASD) and schizophrenia (SCZ). We analyzed 1,108 ASD cases, 2,458 SCZ cases, and 2,095 controls in a Japanese population and confirmed an increased burden of rare exonic CNVs in both disorders. Clinically significant (or pathogenic) CNVs, including those at 29 loci common to both disorders, were found in about 8% of ASD and SCZ cases, which was significantly higher than in controls. Phenotypic analysis revealed an association between clinically significant CNVs and intellectual disability. Gene set analysis showed significant overlap of biological pathways in both disorders including oxidative stress response, lipid metabolism/modification, and genomic integrity. Finally, based on bioinformatics analysis, we identified multiple disease-relevant genes in eight well-known ASD/SCZ-associated CNV loci (e.g., 22q11.2, 3q29). Our findings suggest an etiological overlap of ASD and SCZ and provide biological insights into these disorders.
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Affiliation(s)
- Itaru Kushima
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan; Institute for Advanced Research, Nagoya University, Nagoya, Aichi 464-8601, Japan
| | - Branko Aleksic
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan
| | - Masahiro Nakatochi
- Division of Data Science, Data Coordinating Center, Department of Advanced Medicine, Nagoya University Hospital, Nagoya, Aichi 466-8560, Japan
| | - Teppei Shimamura
- Division of Systems Biology, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan
| | - Takashi Okada
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan
| | - Yota Uno
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan; Laboratory for Psychiatric and Molecular Neuroscience, McLean Hospital, Belmont, MA 02478, USA
| | - Mako Morikawa
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan
| | - Kanako Ishizuka
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan
| | - Tomoko Shiino
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan; Department of Pathology of Mental Diseases, National Institute of Mental Health, National Center of Neurology and Psychiatry, Kodaira, Tokyo 187-8553, Japan
| | - Hiroki Kimura
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan
| | - Yuko Arioka
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan; Institute for Advanced Research, Nagoya University, Nagoya, Aichi 464-8601, Japan; Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya, Aichi 466-8560, Japan
| | - Akira Yoshimi
- Division of Clinical Sciences and Neuropsychopharmacology, Faculty and Graduate School of Pharmacy, Meijo University, Nagoya, Aichi 468-8503, Japan
| | - Yuto Takasaki
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan
| | - Yanjie Yu
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan
| | - Yukako Nakamura
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan
| | - Maeri Yamamoto
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan
| | - Tetsuya Iidaka
- Department of Physical and Occupational Therapy, Nagoya University Graduate School of Medicine, Nagoya, Aichi 461-8673, Japan
| | - Shuji Iritani
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan
| | - Toshiya Inada
- Department of Psychiatry and Psychobiology, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan
| | - Nanayo Ogawa
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan
| | - Emiko Shishido
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan
| | - Youta Torii
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan; Center for Postgraduate Clinical Training and Career Development, Nagoya University Hospital, Nagoya, Aichi 466-8560, Japan
| | - Naoko Kawano
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan; Institutes of Innovation for Future Society, Nagoya University, Nagoya, Aichi 464-8601, Japan
| | - Yutaka Omura
- Aichi Psychiatric Medical Center, Nagoya, Aichi 464-0031, Japan
| | - Toru Yoshikawa
- Department of Child Psychiatry, Aichi Prefectural Colony Central Hospital, Kasugai, Aichi 480-0392, Japan
| | - Tokio Uchiyama
- Department of Clinical Psychology, Taisho University, Tokyo 170-8470, Japan
| | - Toshimichi Yamamoto
- Department of Legal Medicine and Bioethics, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan
| | - Masashi Ikeda
- Department of Psychiatry, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan
| | - Ryota Hashimoto
- Molecular Research Center for Children's Mental Development, United Graduate School of Child Development, Osaka University, Suita, Osaka 565-0871, Japan; Department of Psychiatry, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan; Department of Pathology of Mental Diseases, National Institute of Mental Health, National Center of Neurology and Psychiatry, Kodaira, Tokyo 187-8553, Japan
| | - Hidenaga Yamamori
- Department of Psychiatry, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Yuka Yasuda
- Department of Psychiatry, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Toshiyuki Someya
- Department of Psychiatry, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Yuichiro Watanabe
- Department of Psychiatry, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Jun Egawa
- Department of Psychiatry, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Ayako Nunokawa
- Department of Psychiatry, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Masanari Itokawa
- Center for Medical Cooperation, Tokyo Metropolitan Institute of Medical Science, Tokyo 156-8506, Japan
| | - Makoto Arai
- Department of Psychiatry and Behavioral Sciences, Tokyo Metropolitan Institute of Medical Science, Tokyo 156-8506, Japan
| | - Mitsuhiro Miyashita
- Department of Psychiatry and Behavioral Sciences, Tokyo Metropolitan Institute of Medical Science, Tokyo 156-8506, Japan
| | - Akiko Kobori
- Department of Psychiatry and Behavioral Sciences, Tokyo Metropolitan Institute of Medical Science, Tokyo 156-8506, Japan
| | - Michio Suzuki
- Department of Neuropsychiatry, University of Toyama Graduate School of Medicine and Pharmaceutical Sciences, Toyama 930-0194, Japan
| | - Tsutomu Takahashi
- Department of Neuropsychiatry, University of Toyama Graduate School of Medicine and Pharmaceutical Sciences, Toyama 930-0194, Japan
| | - Masahide Usami
- Department of Child and Adolescent Psychiatry, Kohnodai Hospital, National Center for Global Health and Medicine, Ichikawa, Chiba 272-8516, Japan
| | - Masaki Kodaira
- Department of Child and Adolescent Psychiatry, Kohnodai Hospital, National Center for Global Health and Medicine, Ichikawa, Chiba 272-8516, Japan
| | - Kyota Watanabe
- Department of Child and Adolescent Psychiatry, Kohnodai Hospital, National Center for Global Health and Medicine, Ichikawa, Chiba 272-8516, Japan
| | - Tsukasa Sasaki
- Department of Physical and Health Education, Graduate School of Education, The University of Tokyo, Tokyo 113-0033, Japan
| | - Hitoshi Kuwabara
- Research Center for Child Mental Development, Hamamatsu University School of Medicine, Hamamatsu 431-3192, Japan
| | - Mamoru Tochigi
- Department of Neuropsychiatry, Teikyo University School of Medicine, Tokyo 173-8605, Japan
| | - Fumichika Nishimura
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Hidenori Yamasue
- Department of Psychiatry, Hamamatsu University School of Medicine, Hamamatsu 431-3192, Japan
| | - Yosuke Eriguchi
- Department of Child Neuropsychiatry, School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Seico Benner
- Department of Child Neuropsychiatry, School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Masaki Kojima
- Department of Child Neuropsychiatry, School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Walid Yassin
- Department of Child Neuropsychiatry, School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Toshio Munesue
- Research Center for Child Mental Development, Kanazawa University, Kanazawa, Ishikawa 920-8640, Japan
| | - Shigeru Yokoyama
- Research Center for Child Mental Development, Kanazawa University, Kanazawa, Ishikawa 920-8640, Japan
| | - Ryo Kimura
- Department of Anatomy and Developmental Biology, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan
| | - Yasuko Funabiki
- Department of Cognitive and Behavioral Science, Graduate School of Human and Environmental Studies, Kyoto University, Kyoto 606-8501, Japan
| | - Hirotaka Kosaka
- Research Center for Child Mental Development University of Fukui, Eiheiji, Fukui 910-1193, Japan; Department of Neuropsychiatry, Faculty of Medical Sciences, University of Fukui, Eiheiji, Fukui 910-1193, Japan
| | - Makoto Ishitobi
- Department of Neuropsychiatry, Faculty of Medical Sciences, University of Fukui, Eiheiji, Fukui 910-1193, Japan; Department of Child and Adolescent Mental Health, National Institute of Mental Health, National Center of Neurology and Psychiatry, Kodaira, Tokyo 187-8551, Japan
| | - Tetsuro Ohmori
- Department of Psychiatry, Graduate School of Biomedical Sciences, Tokushima University, Tokushima 770-8503, Japan
| | - Shusuke Numata
- Department of Psychiatry, Graduate School of Biomedical Sciences, Tokushima University, Tokushima 770-8503, Japan
| | - Takeo Yoshikawa
- Laboratory for Molecular Psychiatry, RIKEN Center for Brain Science, Wako, Saitama 351-0198, Japan
| | - Tomoko Toyota
- Laboratory for Molecular Psychiatry, RIKEN Center for Brain Science, Wako, Saitama 351-0198, Japan
| | - Kazuhiro Yamakawa
- Laboratory for Neurogenetics, RIKEN Center for Brain Science, Wako, Saitama 351-0198, Japan
| | - Toshimitsu Suzuki
- Laboratory for Neurogenetics, RIKEN Center for Brain Science, Wako, Saitama 351-0198, Japan
| | - Yushi Inoue
- National Epilepsy Center, Shizuoka Institute of Epilepsy and Neurological Disorder, Shizuoka 420-8688, Japan
| | - Kentaro Nakaoka
- Aichi Psychiatric Medical Center, Nagoya, Aichi 464-0031, Japan
| | - Yu-Ichi Goto
- Department of Mental Retardation and Birth Defect Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Kodaira, Tokyo 187-8502, Japan
| | - Masumi Inagaki
- Department of Developmental Disorders, National Institute of Mental Health, National Center of Neurology and Psychiatry, Kodaira, Tokyo 187-8553, Japan
| | - Naoki Hashimoto
- Department of Psychiatry, Hokkaido University Graduate School of Medicine, Hokkaido, Sapporo 060-8638, Japan
| | - Ichiro Kusumi
- Department of Psychiatry, Hokkaido University Graduate School of Medicine, Hokkaido, Sapporo 060-8638, Japan
| | - Shuraku Son
- Department of Psychiatry, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan
| | - Toshiya Murai
- Department of Psychiatry, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan
| | - Tempei Ikegame
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Naohiro Okada
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Kiyoto Kasai
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan; The International Research Center for Neurointelligence (WPI-IRCN) at The University of Tokyo Institutes for Advanced Study (UTIAS), Tokyo 113-0033, Japan
| | - Shohko Kunimoto
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan
| | - Daisuke Mori
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan; Brain and Mind Research Center, Nagoya University, Nagoya, Aichi 466-8550, Japan
| | - Nakao Iwata
- Department of Psychiatry, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan
| | - Norio Ozaki
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan.
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7
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Kajiura K, Takao S, Kawano N, Sawada T, Tsuboi M, Toba H, Yoshida M, Takizawa H, Tangoku A, Kondo K. Evaluation of the components of mediastinal cystic lesions using imaging techniques. J Med Invest 2019; 66:106-111. [PMID: 31064920 DOI: 10.2152/jmi.66.106] [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] [Indexed: 11/14/2022]
Abstract
OBJECTIVE To identify and differentiate patients with mediastinal cysts from those with cystic tumors requiring surgery. METHODS A total of 36 patients with mediastinal cystic lesions were enrolled. The patients were separated into two groups based on pathological findings : those with mediastinal cysts (n=23) and those with mediastinal tumors (n=13). The cystic components were measured using imaging parameters including mean computed tomography (CT) value, apparent diffusion coefficient (ADC), T1 signal intensity ratio (T1SIratio), and T2 signal intensity ratio (T2SI-ratio), acquired from magnetic resonance imaging (MRI) ; and standardized maximum uptake value (SUVmax) from18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT). Both groups were statistically compared. RESULTS Comparative parameters between the cysts and tumors revealed the following ratios : CT value, 40.9?21.2 versus (vs) 24.8?12.9 (p = 0.019) ;SUVmax, 1.18?0.50 vs 4.32?3.52 (p = 0.003) ; ADC, 3.46?0.96 vs 2.68?0.74 (p = 0.022) ; T1SI-ratio, 1.06?0.60 vs 1.35? 0.92 (p = 0.648) ; T2SI-ratio, 5.40?1.80 vs 4.33?1.58 (p = 0.194). However, there was no correlation between FDG uptake and ADC value. CONCLUSIONS SUVmax from18F-FDG PET/CT and ADC derived from MRI were effective in facilitating preoperative diagnosis to differentiate mediastinal cysts from tumors. However, these examinations may be complementary to one another, not dominant. J. Med. Invest. 66 : 106-111, February, 2019.
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Affiliation(s)
- Koichiro Kajiura
- Department of Thoracic, Endocrine, and Oncological Surgery, Graduate School of Biomedical Sciences, Tokushima University, Tokushima,Japan.,Department of Thoracic Center, Urasoe General Hospital, Okinawa, Japan
| | - Shoichiro Takao
- Department of Diagnostic Radiology, Graduate School of Biomedical Sciences, Tokushima University, Tokushima, Japan
| | - Naoko Kawano
- Department of Diagnostic Radiology, Graduate School of Biomedical Sciences, Tokushima University, Tokushima, Japan
| | - Toru Sawada
- Department of Thoracic, Endocrine, and Oncological Surgery, Graduate School of Biomedical Sciences, Tokushima University, Tokushima,Japan
| | - Mitsuhiro Tsuboi
- Department of Thoracic, Endocrine, and Oncological Surgery, Graduate School of Biomedical Sciences, Tokushima University, Tokushima,Japan
| | - Hiroaki Toba
- Department of Thoracic, Endocrine, and Oncological Surgery, Graduate School of Biomedical Sciences, Tokushima University, Tokushima,Japan
| | - Mitsuteru Yoshida
- Department of Thoracic, Endocrine, and Oncological Surgery, Graduate School of Biomedical Sciences, Tokushima University, Tokushima,Japan
| | - Hiromitsu Takizawa
- Department of Thoracic, Endocrine, and Oncological Surgery, Graduate School of Biomedical Sciences, Tokushima University, Tokushima,Japan
| | - Akira Tangoku
- Department of Thoracic, Endocrine, and Oncological Surgery, Graduate School of Biomedical Sciences, Tokushima University, Tokushima,Japan
| | - Kazuya Kondo
- Department of Oncological Medical Services, GraduateSchool of Biomedical Sciences, Tokushima University, Tokushima, Japan
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8
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Tsuruta Y, Iwamoto K, Banno M, Kawano N, Kohmura K, Miyata S, Fujishiro H, Noda Y, Noda A, Iritani S, Ozaki N. Effects of hypnotics on prefrontal cortex activity during a verbal fluency task in healthy male subjects: A near-infrared spectroscopy study. Hum Psychopharmacol 2018; 33:e2678. [PMID: 30368902 DOI: 10.1002/hup.2678] [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: 05/28/2018] [Revised: 08/13/2018] [Accepted: 09/25/2018] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To assess the effects of hypnotics on prefrontal cortex activity in healthy subjects using near-infrared spectroscopy (NIRS) in a double-blind, placebo-controlled crossover trial. METHODS Eighteen healthy males received acute doses of ramelteon (8 mg), triazolam (0.125 mg), or placebo in a predetermined randomization schedule, with a washout period of more than 1 week. All subjects performed a verbal fluency task during NIRS assessments at baseline and at 1 and 4 hr post-dose. The number of words correctly generated during the task (behavioral performance) and scores on the Stanford Sleepiness Scale (SSS) were also recorded at each test time. RESULTS Compared with the placebo, triazolam (0.125 mg) significantly decreased oxyhemoglobin (oxy-Hb) concentration change in NIRS during the posttask period and significantly increased behavioral performance, whereas triazolam (0.125 mg) and ramelteon (8 mg) significantly increased SSS scores. CONCLUSIONS The differential effects of two types of hypnotics on oxy-Hb change measured by NIRS were observed in acute dosing, suggesting that when assessing brain activity of patients with psychiatric disorders, researchers should consider how certain types of hypnotics can influence brain function. This would also provide useful information to clinicians when prescribing hypnotics suitable for their patients' conditions.
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Affiliation(s)
- Yoshiyuki Tsuruta
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Kunihiro Iwamoto
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Masahiro Banno
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Naoko Kawano
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan.,Institutes of Innovation for Future Society, Nagoya University, Nagoya, Aichi, Japan
| | - Kunihiro Kohmura
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Seiko Miyata
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Hiroshige Fujishiro
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Yukihiro Noda
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan.,Division of Clinical Science and Neuropsychopharmacology, Graduate School of Pharmacy, Meijo University, Nagoya, Aichi, Japan
| | - Akiko Noda
- Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, Kasugai, Aichi, Japan
| | - Shuji Iritani
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Norio Ozaki
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
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9
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Iwata M, Iwamoto K, Kawano N, Kawaue T, Ozaki N. Evaluation method regarding the effect of psychotropic drugs on driving performance: A literature review. Psychiatry Clin Neurosci 2018; 72:747-773. [PMID: 29962103 DOI: 10.1111/pcn.12734] [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] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/26/2018] [Indexed: 12/31/2022]
Abstract
Although automobile driving is necessary for many people, including patients with mental disorders, the influence of psychotropic drugs on driving performance remains unclear and requires scientific verification. Therefore, the objective of this study was to conduct a review of the literature in order to aid the development of a valid evaluation method regarding the influence of medication on driving performance. We conducted a literature search using two sets of terms on PubMed. One set was related to psychotropic drugs, and the other to driving tests. We excluded reviews and case studies and added literature found on other sites. A total of 121 relevant reports were found. The experiments were roughly divided into on-the-road tests (ORT) and driving simulators (DS). Although highway driving tests in ORT are most often used to evaluate driving performance, DS are becoming increasingly common because of their safety and low cost. The validity of evaluation methods for alcohol should be verified; however, we found that there were few validated tests, especially for DS. The scenarios and measurement indices of each DS were different, which makes it difficult to compare the results of DS studies directly. No evaluation indices, except for SD of lateral position, were sufficiently validated. Although highway ORT are the gold standard, DS were shown to have an increasing role in evaluating driving performance. The reliability of DS needs to be established, as does their validation with alcohol in order to accumulate more high-quality evidence.
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Affiliation(s)
- Mari Iwata
- Department of Psychiatry, Nagoya University, Graduate School of Medicine, Nagoya, Japan
| | - Kunihiro Iwamoto
- Department of Psychiatry, Nagoya University, Graduate School of Medicine, Nagoya, Japan
| | - Naoko Kawano
- Department of Psychiatry, Nagoya University, Graduate School of Medicine, Nagoya, Japan.,Institutes of Innovation for Future Society, Nagoya University, Nagoya, Japan
| | - Takumi Kawaue
- Department of Psychiatry, Nagoya University, Graduate School of Medicine, Nagoya, Japan
| | - Norio Ozaki
- Department of Psychiatry, Nagoya University, Graduate School of Medicine, Nagoya, Japan
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10
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Yamamoto M, Kushima I, Suzuki R, Branko A, Kawano N, Inada T, Iidaka T, Ozaki N. Aberrant functional connectivity between the thalamus and visual cortex is related to attentional impairment in schizophrenia. Psychiatry Res Neuroimaging 2018; 278:35-41. [PMID: 29981940 DOI: 10.1016/j.pscychresns.2018.06.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 06/13/2018] [Accepted: 06/15/2018] [Indexed: 11/20/2022]
Abstract
Resting-state (rs) functional magnetic resonance imaging (fMRI) studies have revealed dysfunctional thalamocortical functional connectivity (FC) in schizophrenia. However, the relationship between thalamocortical FC and cognitive impairment has not been thoroughly investigated. We hypothesized that aberrant thalamocortical FC is related to attention deficits in schizophrenia. Thirty-eight patients with schizophrenia and 38 matched healthy controls underwent rs-fMRI and task fMRI while performing a Flanker task. We observed decreased left thalamic activation in patients with schizophrenia using task fMRI to determine the thalamic seed. A seed-based analysis using this seed was performed in the whole brain to assess differences in thalamocortical FC between the groups. Significantly worse performance was observed in the patient group. The rs-fMRI analysis revealed significantly increased FC between the left thalamus seed and the occipital cortices/postcentral gyri in patients when compared to controls. In the patient group, significant positive correlations were observed between the degree of FC from the left thalamus to the bilateral occipital gyri, which correspond to the visual cortex, and the Flanker effect. No significant correlation was detected in the control group. These results indicate that aberrant FC between the left thalamus and the visual cortex is related to attention deficits in schizophrenia.
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Affiliation(s)
- Maeri Yamamoto
- Department of Psychiatry, Nagoya University, Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8560, Japan
| | - Itaru Kushima
- Department of Psychiatry, Nagoya University, Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8560, Japan; Institute for Advanced Research, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8601, Japan
| | - Ryohei Suzuki
- Department of Psychiatry, Nagoya University, Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8560, Japan
| | - Aleksic Branko
- Department of Psychiatry, Nagoya University, Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8560, Japan
| | - Naoko Kawano
- Department of Psychiatry, Nagoya University, Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8560, Japan; Institutes of Innovation for Future Society, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8601, Japan
| | - Toshiya Inada
- Department of Psychiatry, Nagoya University, Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8560, Japan
| | - Tetsuya Iidaka
- Department of Physical and Occupational Therapy, Nagoya University, Graduate School of Medicine, 1-1-20, Daiko-minami, Higashi, Nagoya, Aichi 461-8673, Japan.
| | - Norio Ozaki
- Department of Psychiatry, Nagoya University, Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8560, Japan
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11
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Sobue A, Kushima I, Nagai T, Shan W, Kohno T, Aleksic B, Aoyama Y, Mori D, Arioka Y, Kawano N, Yamamoto M, Hattori M, Nabeshima T, Yamada K, Ozaki N. Genetic and animal model analyses reveal the pathogenic role of a novel deletion of RELN in schizophrenia. Sci Rep 2018; 8:13046. [PMID: 30158644 PMCID: PMC6115412 DOI: 10.1038/s41598-018-31390-w] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 07/23/2018] [Indexed: 12/30/2022] Open
Abstract
Reelin protein (RELN), an extracellular matrix protein, plays multiple roles that range from embryonic neuronal migration to spine formation in the adult brain. Results from genetic studies have suggested that RELN is associated with the risk of psychiatric disorders, including schizophrenia (SCZ). We previously identified a novel exonic deletion of RELN in a patient with SCZ. High-resolution copy number variation analysis revealed that this deletion included exons 52 to 58, which truncated the RELN in a similar manner to the Reln Orleans mutation (Relnrl-Orl). We examined the clinical features of this patient and confirmed a decreased serum level of RELN. To elucidate the pathophysiological role of the exonic deletion of RELN in SCZ, we conducted behavioral and neurochemical analyses using heterozygous Relnrl-Orl/+ mice. These mice exhibited abnormalities in anxiety, social behavior, and motor learning; the deficits in motor learning were ameliorated by antipsychotics. Methamphetamine-induced hyperactivity and dopamine release were significantly reduced in the Relnrl-Orl/+ mice. In addition, the levels of GABAergic markers were decreased in the brain of these mice. Taken together, our results suggest that the exonic deletion of RELN plays a pathological role, implicating functional changes in the dopaminergic and GABAergic systems, in the pathophysiology of SCZ.
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Affiliation(s)
- Akira Sobue
- Department of Neuropsychopharmacology and Hospital Pharmacy, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Itaru Kushima
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan.,Institute for Advanced Research, Nagoya University, Nagoya, Aichi, Japan
| | - Taku Nagai
- Department of Neuropsychopharmacology and Hospital Pharmacy, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Wei Shan
- Department of Neuropsychopharmacology and Hospital Pharmacy, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Takao Kohno
- Department of Biomedical Science, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Aichi, Japan
| | - Branko Aleksic
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Yuki Aoyama
- Department of Neuropsychopharmacology and Hospital Pharmacy, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Daisuke Mori
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan.,Brain and Mind Research Center, Nagoya University, Nagoya, Aichi, Japan
| | - Yuko Arioka
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan.,Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya, Aichi, Japan
| | - Naoko Kawano
- Institutes of Innovation for Future Society, Nagoya University, Nagoya, Aichi, Japan
| | - Maeri Yamamoto
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Mitsuharu Hattori
- Department of Biomedical Science, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Aichi, Japan
| | - Toshitaka Nabeshima
- Advanced Diagnostic System Research Laboratory Fujita Health University, Graduate School of Health Sciences, Toyoake, Aichi, Japan.,Aino University, Ibaraki, Osaka, Japan
| | - Kiyofumi Yamada
- Department of Neuropsychopharmacology and Hospital Pharmacy, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Norio Ozaki
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan.
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12
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Miyata A, Iwamoto K, Kawano N, Aleksic B, Ando M, Ebe K, Fujita K, Yokoyama M, Akiyama T, Igarashi Y, Ozaki N. Driving performance of stable outpatients with depression undergoing real-world treatment. Psychiatry Clin Neurosci 2018; 72:399-408. [PMID: 29485228 DOI: 10.1111/pcn.12648] [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] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 12/08/2017] [Accepted: 02/20/2018] [Indexed: 11/30/2022]
Abstract
AIM Although the effects of psychotropics on driving ability have received much attention, little research is available on driving performance of stable outpatients with depression undergoing real-world treatment. This observational study investigated driving performance, cognitive functions, and depressive symptomatology of partly remitted outpatients with depression under daily-practice psychopharmacologic treatment. METHODS Seventy stable outpatients with depression and 67 healthy volunteers were enrolled. Patients' prescriptions were not controlled in order to capture the real-world treatment environment. Participants underwent three driving tasks - road-tracking, car-following, and harsh-braking - using a driving simulator, and three cognitive tasks - Continuous Performance Test, Wisconsin Card Sorting Test, and Trail-Making Test. The Symptom Assessment Scale - Structured Interview Guide for the Hamilton Depression Rating Scale, Beck Depression Inventory-II, Social Adaptation Self-Evaluation Scale, and Stanford Sleepiness Scale were also completed. RESULTS Although many patients received various pharmacologic treatments, there were no significant differences in the three driving tasks between outpatients with depression and healthy controls. Difficulty of maintaining set in the Wisconsin Card Sorting Test was significantly increased in patients with depression. Results on the Social Adaptation Self-Evaluation Scale were significantly associated with road-tracking and car-following performance, in contrast to results on the Hamilton Depression Rating Scale and the Beck Depression Inventory-II. CONCLUSION We conclude that partly remitted depressive patients under steady-state pharmacologic treatment do not differ from healthy controls with respect to driving performance, which seems to be more affected by psychosocial functioning than by pharmacologic agents. This, however, should be investigated systematically in an off/on study.
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Affiliation(s)
- Akemi Miyata
- Department of Psychiatry, Nagoya University, Graduate School of Medicine, Nagoya, Japan
| | - Kunihiro Iwamoto
- Department of Psychiatry, Nagoya University, Graduate School of Medicine, Nagoya, Japan
| | - Naoko Kawano
- Department of Psychiatry, Nagoya University, Graduate School of Medicine, Nagoya, Japan.,Institutes of Innovation for Future Society, Nagoya University, Nagoya, Japan
| | - Branko Aleksic
- Department of Psychiatry, Nagoya University, Graduate School of Medicine, Nagoya, Japan
| | - Masahiko Ando
- Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya, Japan
| | - Kazutoshi Ebe
- Toyota Central R&D Labs, Inc., Nagakute, Japan.,Collaborative Safety Research Center, Toyota Motor Engineering and Manufacturing North America, Inc., Ann Arbor, USA
| | - Kiyoshi Fujita
- Department of Psychiatry, Okehazama Hospital, Toyoake, Japan
| | | | - Tsuyoshi Akiyama
- Department of Psychiatry, NTT Medical Center Tokyo, Tokyo, Japan
| | | | - Norio Ozaki
- Department of Psychiatry, Nagoya University, Graduate School of Medicine, Nagoya, Japan
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13
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Kato K, Iwamoto K, Kawano N, Noda Y, Ozaki N, Noda A. Differential effects of physical activity and sleep duration on cognitive function in young adults. J Sport Health Sci 2018; 7:227-236. [PMID: 30356485 PMCID: PMC6180557 DOI: 10.1016/j.jshs.2017.01.005] [Citation(s) in RCA: 21] [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] [Subscribe] [Scholar Register] [Received: 01/01/2016] [Revised: 06/30/2016] [Accepted: 12/05/2016] [Indexed: 05/07/2023]
Abstract
PURPOSE Although exercise and sleep duration habits are associated with cognitive function, their beneficial effects on cognitive function remain unclear. We aimed to examine the effect of sleep duration and daily physical activity on cognitive function, elucidating the neural mechanisms using near-infrared spectroscopy (NIRS). METHODS A total of 23 healthy young adults (age 22.0 ± 2.2 years) participated in this study. Exercise amount was assessed using a uniaxial accelerometer. We evaluated total sleep time (TST) and sleep efficiency by actigraphy. Cognitive function was tested using the N-back task, the Wisconsin Card Sorting Test (WCST), and the Continuous Performance Test-Identical Pairs (CPT-IP), and the cortical oxygenated hemoglobin levels during a word fluency task were measured with NIRS. RESULTS Exercise amount was significantly correlated with reaction time on 0- and 1-back tasks (r = -0.602, p = 0.002; r = -0.446, p = 0.033, respectively), whereas TST was significantly correlated with % corrects on the 2-back task (r = 0.486, p = 0.019). Multiple regression analysis, including exercise amount, TST, and sleep efficiency, revealed that exercise amount was the most significant factor for reaction time on 0- and 1-back tasks (β = -0.634, p = 0.002; β = -0.454, p = 0.031, respectively), and TST was the most significant factor for % corrects on the 2-back task (β = 0.542, p = 0.014). The parameter measured by WCST and CPT-IP was not significantly correlated with TST or exercise amount. Exercise amount, but not TST, was significantly correlated with the mean area under the NIRS curve in the prefrontal area (r = 0.492, p = 0.017). CONCLUSION Exercise amount and TST had differential effects on working memory and cortical activation in the prefrontal area. Daily physical activity and appropriate sleep duration may play an important role in working memory.
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Affiliation(s)
- Kazuko Kato
- Department of Biomedical Sciences, Chubu University Graduate School of Life and Health Sciences, Kasugai, Aichi 487-8501, Japan
| | - Kunihiro Iwamoto
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan
| | - Naoko Kawano
- Institutes of Innovation for Future Society, Nagoya University, Nagoya, Aichi 466-8550, Japan
| | - Yukihiro Noda
- Division of Clinical Sciences and Neuropsychopharmacology, Graduate School of Pharmacy, Meijo University, Nagoya, Aichi 468-8503, Japan
| | - Norio Ozaki
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan
| | - Akiko Noda
- Department of Biomedical Sciences, Chubu University Graduate School of Life and Health Sciences, Kasugai, Aichi 487-8501, Japan
- Corresponding author.
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14
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Kohmura K, Adachi Y, Tanaka S, Katayama H, Imaeda M, Kawano N, Nishioka K, Ando M, Iidaka T, Ozaki N. Regional decrease in gray matter volume is related to body dissatisfaction in anorexia nervosa. Psychiatry Res Neuroimaging 2017; 267:51-58. [PMID: 28763717 DOI: 10.1016/j.pscychresns.2017.07.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 07/24/2017] [Accepted: 07/24/2017] [Indexed: 11/18/2022]
Abstract
Anorexia nervosa (AN) is a psychiatric disorder, in which the prognosis for some patients is poor. The etiology and effective treatments for AN have not been established. We examined morphometric changes in the brain of AN and clarified how the changes were associated with symptoms and pathophysiology. We enrolled 52 participants: 7 with the restrictive type of AN, 13 with the binge-eating/purging type, 3 with eating disorder not otherwise specified, and 29 healthy controls. Participants underwent T1-weighted MRI. Group differences between patients and controls in gray matter volume (GMV) were analyzed using voxel-based morphometry. Age and body mass index (BMI) were considered covariates. Correlations between regional GMVs and drive for thinness and body dissatisfaction were examined. Patients had decreased GMV in the superior/middle temporal gyrus (STG/MTG), pulvinar, and superior frontal gyrus after correction for age and BMI, and in the STG/MTG, middle frontal gyrus, and cingulate after correction for age. A correlational group difference was detected for body dissatisfaction and GMV in the STG. Our findings suggest that decreased GMV in the STG is related to body dissatisfaction that could come from impaired visuospatial perception, together with GMV decreases in several regions, which may be involved in development of AN.
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Affiliation(s)
- Kunihiro Kohmura
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Seichiryo Hospital, Nagoya, Aichi, Japan.
| | - Yasunori Adachi
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Department of Clinical Oncology and Chemotherapy, Nagoya University Hospital, Nagoya, Aichi, Japan
| | - Satoshi Tanaka
- Department of Psychiatry, Nagoya University Hospital, Nagoya, Aichi, Japan
| | - Hiroto Katayama
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Department of Neuropsychiatry, Faculty of Medical Sciences, University of Fukui, Yoshida-gun, Fukui, Japan
| | - Miho Imaeda
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Sakura Clinic, Nagoya, Aichi, Japan
| | - Naoko Kawano
- Institutes of Innovation for Future Society, Nagoya University, Nagoya, Aichi, Japan
| | - Kazuo Nishioka
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; National Hospital Organization Higashi Owari National Hospital, Nagoya, Aichi, Japan
| | - Masahiko Ando
- Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya, Aichi, Japan
| | - Tetsuya Iidaka
- Department of Physical and Occupational Therapy, Nagoya University, Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Norio Ozaki
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
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15
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Sumiyoshi T, Toyomaki A, Kawano N, Kitajima T, Kusumi I, Ozaki N, Iwata N, Sueyoshi K, Nakagome K. Verbal memory impairments in bipolar disorder: Effect of type of word learning tasks. Psychiatry Clin Neurosci 2017; 71:570-571. [PMID: 28459504 DOI: 10.1111/pcn.12536] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [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: 02/25/2017] [Revised: 04/19/2017] [Accepted: 04/25/2017] [Indexed: 11/29/2022]
Affiliation(s)
- Tomiki Sumiyoshi
- Department of Clinical Epidemiology, Translational Medical Center, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Atsuhito Toyomaki
- Department of Neuropsychiatry, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Naoko Kawano
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tomoko Kitajima
- Department of Psychiatry, Fujita Health University School of Medicine, Toyoake, Japan
| | - Ichiro Kusumi
- Department of Neuropsychiatry, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Norio Ozaki
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Nakao Iwata
- Department of Psychiatry, Fujita Health University School of Medicine, Toyoake, Japan
| | - Kazuki Sueyoshi
- Department of Clinical Epidemiology, Translational Medical Center, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Kazuyuki Nakagome
- National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan
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16
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Kawano N, Iwamoto K, Ozaki N. DRIVING-RELATED RISKS AND MOBILITY IN ELDERLY DRIVERS WITH MCI. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.4350] [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] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- N. Kawano
- Institutes of Innovation for Future Society, Nagoya University, Nagoya, Japan,
- Department of Psychiatry, Nagoya University, Nagoya, Japan
| | - K. Iwamoto
- Department of Psychiatry, Nagoya University, Nagoya, Japan
| | - N. Ozaki
- Department of Psychiatry, Nagoya University, Nagoya, Japan
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17
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Sumiyoshi T, Toyomaki A, Kawano N, Kitajima T, Kusumi I, Ozaki N, Iwata N, Nakagome K. Reliability and validity of the California Verbal Learning Test-II - Japanese version. Psychiatry Clin Neurosci 2017; 71:417-418. [PMID: 28317219 DOI: 10.1111/pcn.12525] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 02/28/2017] [Accepted: 03/14/2017] [Indexed: 11/28/2022]
Affiliation(s)
- Tomiki Sumiyoshi
- Department of Clinical Epidemiology, Translational Medical Center, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Atsuhito Toyomaki
- Department of Neuropsychiatry, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Naoko Kawano
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tomoko Kitajima
- Department of Psychiatry, Fujita Health University School of Medicine, Toyoake, Japan
| | - Ichiro Kusumi
- Department of Neuropsychiatry, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Norio Ozaki
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Nakao Iwata
- Department of Psychiatry, Fujita Health University School of Medicine, Toyoake, Japan
| | - Kazuyuki Nakagome
- National Center of Neurology and Psychiatry, National Institute of Health, Tokyo, Japan
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18
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Fujino H, Sumiyoshi C, Yasuda Y, Yamamori H, Fujimoto M, Fukunaga M, Miura K, Takebayashi Y, Okada N, Isomura S, Kawano N, Toyomaki A, Kuga H, Isobe M, Oya K, Okahisa Y, Takaki M, Hashimoto N, Kato M, Onitsuka T, Ueno T, Ohnuma T, Kasai K, Ozaki N, Sumiyoshi T, Imura O, Hashimoto R. Estimated cognitive decline in patients with schizophrenia: A multicenter study. Psychiatry Clin Neurosci 2017; 71:294-300. [PMID: 27804186 DOI: 10.1111/pcn.12474] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [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: 06/01/2016] [Revised: 09/05/2016] [Accepted: 10/20/2016] [Indexed: 12/30/2022]
Abstract
AIM Studies have reported that cognitive decline occurs after the onset of schizophrenia despite heterogeneity in cognitive function among patients. The aim of this study was to investigate the degree of estimated cognitive decline in patients with schizophrenia by comparing estimated premorbid intellectual functioning and current intellectual functioning. METHODS A total of 446 patients with schizophrenia (228 male, 218 female), consisting of three sample sets obtained from 11 psychiatric facilities, and 686 healthy controls participated in this study. The Wechsler Adult Intelligence Scale-III (WAIS-III) was used to measure the participants' current full-scale IQ (FSIQ). The premorbid IQ was estimated using the Japanese Adult Reading Test-25. Estimated cognitive decline (difference score) was defined as the difference between the estimated premorbid IQ and the current FSIQ. RESULTS Patients with schizophrenia showed greater estimated cognitive decline, a lower FSIQ, and a lower premorbid IQ compared with the healthy controls. The mean difference score, FSIQ, and estimated premorbid IQ were -16.3, 84.2, and 100.5, respectively, in patients with schizophrenia. Furthermore, 39.7% of the patients had a difference score of 20 points or greater decline. A discriminant analysis showed that the difference score accurately predicted 81.6% of the patients and healthy controls. CONCLUSION These results show the distribution of difference score in patients with schizophrenia. These findings may contribute to assessing the severity of estimated cognitive decline and identifying patients with schizophrenia who suffer from cognitive decline.
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Affiliation(s)
- Haruo Fujino
- Graduate School of Human Sciences, Osaka University, Osaka, Japan.,Graduate School of Education, Oita University, Oita, Japan
| | - Chika Sumiyoshi
- Faculty of Human Development and Culture, Fukushima University, Fukushima, Japan
| | - Yuka Yasuda
- Department of Psychiatry, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Hidenaga Yamamori
- Department of Psychiatry, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Michiko Fujimoto
- Department of Psychiatry, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Masaki Fukunaga
- Division of Cerebral Integration, National Institute for Physiological Sciences, Aichi, Japan
| | - Kenichiro Miura
- Graduate School of Medicine, Department of Integrative Brain Science, Kyoto University, Kyoto, Japan
| | - Yuto Takebayashi
- Department of Psychiatry, Faculty of Medicine, Juntendo University, Tokyo, Japan
| | - Naohiro Okada
- Graduate School of Medicine, Department of Neuropsychiatry, The University of Tokyo, Tokyo, Japan
| | - Shuichi Isomura
- Graduate School of Medical Sciences, Department of Neuropsychiatry, Kyushu University, Fukuoka, Japan
| | - Naoko Kawano
- Green Mobility Research Institute, Institutes of Innovation for Future Society, Nagoya University, Aichi, Japan.,Department of Psychiatry, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Atsuhito Toyomaki
- Graduate School of Medicine, Department of Psychiatry, Hokkaido University, Sapporo, Japan
| | - Hironori Kuga
- Graduate School of Medical Sciences, Department of Neuropsychiatry, Kyushu University, Fukuoka, Japan.,Division of Clinical Research, National Hospital Organization, Hizen Psychiatric Center, Saga, Japan
| | - Masanori Isobe
- Department of Psychiatry, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Kazuto Oya
- Department of Psychiatry, Fujita Health University School of Medicine, Aichi, Japan
| | - Yuko Okahisa
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Manabu Takaki
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Naoki Hashimoto
- Graduate School of Medicine, Department of Psychiatry, Hokkaido University, Sapporo, Japan
| | - Masaki Kato
- Department of Neuropsychiatry, Kansai Medical University, Osaka, Japan
| | - Toshiaki Onitsuka
- Graduate School of Medical Sciences, Department of Neuropsychiatry, Kyushu University, Fukuoka, Japan
| | - Takefumi Ueno
- Graduate School of Medical Sciences, Department of Neuropsychiatry, Kyushu University, Fukuoka, Japan.,Division of Clinical Research, National Hospital Organization, Hizen Psychiatric Center, Saga, Japan
| | - Tohru Ohnuma
- Department of Psychiatry, Faculty of Medicine, Juntendo University, Tokyo, Japan
| | - Kiyoto Kasai
- Graduate School of Medicine, Department of Neuropsychiatry, The University of Tokyo, Tokyo, Japan
| | - Norio Ozaki
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Tomiki Sumiyoshi
- Department of Clinical Epidemiology, Translational Medical Center, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Osamu Imura
- Graduate School of Human Sciences, Osaka University, Osaka, Japan
| | - Ryota Hashimoto
- 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
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19
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Umegaki H, Kawamura T, Umemura T, Kawano N. Association of blood pressure and cognitive decline in older adults with diabetes mellitus during a 9-year observational study. Geriatr Gerontol Int 2017; 17:514-515. [PMID: 28345231 DOI: 10.1111/ggi.12886] [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] [Subscribe] [Scholar Register] [Received: 06/05/2016] [Accepted: 07/05/2016] [Indexed: 11/26/2022]
Affiliation(s)
- Hiroyuki Umegaki
- Department of Community Healthcare & Geriatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takahiko Kawamura
- Department of Diabetes and Endocrine Internal Medicine, Chubu Rosai Hospital, Nagoya, Japan.,Center for Preventive Medicine, Chubu Rosai Hospital, Nagoya, Japan
| | | | - Naoko Kawano
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
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20
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Sumiyoshi T, Toyomaki A, Kawano N, Kitajima T, Kusumi I, Ozaki N, Iwata N, Sueyoshi K, Nakagome K. Verbal Memory Impairment in Patients with Subsyndromal Bipolar Disorder. Front Psychiatry 2017; 8:168. [PMID: 28966598 PMCID: PMC5605624 DOI: 10.3389/fpsyt.2017.00168] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [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: 06/18/2017] [Accepted: 08/25/2017] [Indexed: 11/13/2022] Open
Abstract
BACKGROUNDS Several domains of cognitive function, including learning memory and executive function, are impaired in mood disorders. Also, the relationship between disturbances of these two cognitive domains has been suggested. In line with the recent initiative to establish a standard measure of cognitive decline in bipolar disorder, the present study was conducted to (1) test the criterion-related validity and test-retest reliability of the California Verbal Learning Test (CVLT)-II Japanese version, and (2) determine if type of word learning tasks (i.e., with or without a category structure) affects severity of verbal memory deficits in patients with subsyndromal bipolar disorder. METHODS Thirty-six patients with bipolar disorder with mild symptoms and 42 healthy volunteers participated in the study. We first compared effect sizes for memory deficits in patients among the CVLT-II, Brief Assessment of Cognition in Schizophrenia (BACS), and Hopkins Verbal Memory Tests-Revised (HVLT-R). We next evaluated the correlations between scores of the CVLT-II vs. those of the BACS and HVLT-R. Bipolar patients were re-assessed with the same (standard) or alternate forms of the CVLT-II and HVLT-R 1 month later. RESULTS Scores on the CVLT-II 1-5 Free Recall and Long-delay Free Recall, as well as the HVLT-R Immediate Recall, but not the BACS List Learning were significantly lower for patients compared to control subjects. The effect sizes for cognitive decline due to the illness were comparable when measured by the CVLT-II and HVLT-R, ranging from 0.5 to 0.6. CVLT-II scores were significantly correlated with those of the HVLT-R and BACS. Test-retest reliability of the CVLT-II was acceptable, and no significant practice effect was observed when the alternate form was used. There was no consistent relationship between mood symptoms and performance on the CVLT-II. CONCLUSION These results suggest the CVLT-II Japanese version is able to discriminate between bipolar disorder patients and healthy controls with good sensitivity and validity. Data in this study also indicate that the degree of verbal memory deficits in bipolar disorder may be influenced by memory organizational strategy.
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Affiliation(s)
- Tomiki Sumiyoshi
- Department of Clinical Epidemiology, Translational Medical Center, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Atsuhito Toyomaki
- Department of Neuropsychiatry, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Naoko Kawano
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tomoko Kitajima
- Department of Psychiatry, Fujita Health University School of Medicine, Toyoake, Japan
| | - Ichiro Kusumi
- Department of Neuropsychiatry, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Norio Ozaki
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Nakao Iwata
- Department of Psychiatry, Fujita Health University School of Medicine, Toyoake, Japan
| | - Kazuki Sueyoshi
- Department of Clinical Epidemiology, Translational Medical Center, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Kazuyuki Nakagome
- National Institute of Health, National Center of Neurology and Psychiatry, Tokyo, Japan
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21
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Kato K, Miyata S, Ando M, Matsuoka H, Yasuma F, Iwamoto K, Kawano N, Banno M, Ozaki N, Noda A. Influence of sleep duration on cortical oxygenation in elderly individuals. Psychiatry Clin Neurosci 2017; 71:44-51. [PMID: 27696589 DOI: 10.1111/pcn.12464] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [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: 05/11/2016] [Revised: 08/30/2016] [Accepted: 09/26/2016] [Indexed: 12/31/2022]
Abstract
AIM Short sleep duration is a risk factor for cardiovascular diseases. Cerebral blood flow and its regulation are affected by pathological conditions commonly observed in the elderly population, such as dementia, atherosclerosis, diabetes mellitus (DM), stroke, and hypertension. The purpose of this study was to examine the influence of sleep duration on cortical oxygenated hemoglobin (OxyHb) using near-infrared spectroscopy (NIRS). METHODS Seventy-three individuals (age, 70.1 ± 3.9 years, 51 men and 22 women) participated in this study. Cortical OxyHb levels were measured with NIRS. We evaluated age, body mass index (BMI), smoking status, alcohol intake, sleep duration, hypertension, DM, and hyperlipidemia using a questionnaire. Blood pressure was measured using plethysmography. RESULTS Peak OxyHb and area under the NIRS curve significantly decreased in participants with sleep duration <7 h compared with those with sleep duration ≥7 h (0.136 ± 0.212 mM·mm vs 0.378 ± 0.342 mM·mm, P = 0.001; 112.0 ± 243.6 vs 331.7 ± 428.7, P = 0.012, respectively). Sleep duration was significantly correlated with peak OxyHb level and area under the NIRS curve (r = 0.378, P = 0.001; r = 0.285, P = 0.015, respectively). Multiple regression analysis, including age, BMI, sex, smoking status, alcohol intake, sleep duration, hypertension, DM, and hyperlipidemia revealed that sleep duration was the only significant independent factor associated with peak OxyHb and area under the NIRS curve (β = 0.343, P = 0.004; β = 0.244, P = 0.049, respectively), and smoking status was independently correlated with time to the peak OxyHb (β = -0.319, P = 0.009). CONCLUSION Sleep duration may be an important factor that influences cortical oxygenation in the elderly population.
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Affiliation(s)
- Kazuko Kato
- Chubu University Graduate School of Life and Health Sciences, Aichi, Japan
| | - Seiko Miyata
- Department of Sleep Medicine, Nagoya University Graduate School of Medicine, Aichi, Japan.,Education and Training Center of Medical Technology, Chubu University, Aichi, Japan
| | - Motoo Ando
- Education and Training Center of Medical Technology, Chubu University, Aichi, Japan
| | - Hiroki Matsuoka
- Chubu University Graduate School of Life and Health Sciences, Aichi, Japan
| | - Fumihiko Yasuma
- Department of Internal Medicine, National Hospital Organization Suzuka Hospital, Mie, Japan
| | - Kunihiro Iwamoto
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Naoko Kawano
- Institutes of Innovation for Future Society, Nagoya University, Aichi, Japan
| | - Masahiro Banno
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Aichi, Japan.,Seichiryo Hospital, Aichi, Japan
| | - Norio Ozaki
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Akiko Noda
- Chubu University Graduate School of Life and Health Sciences, Aichi, Japan.,Education and Training Center of Medical Technology, Chubu University, Aichi, Japan
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Akiyama H, Nose M, Ohtsuki N, Hisaka S, Takiguchi H, Tada A, Sugimoto N, Fuchino H, Inui T, Kawano N, Hayashi S, Hishida A, Kudo T, Sugiyama K, Abe Y, Mutsuga M, Kawahara N, Yoshimatsu K. Evaluation of the safety and efficacy of Glycyrrhiza uralensis root extracts produced using artificial hydroponic and artificial hydroponic-field hybrid cultivation systems. J Nat Med 2016; 71:265-271. [PMID: 27848205 DOI: 10.1007/s11418-016-1058-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [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: 05/24/2016] [Accepted: 10/24/2016] [Indexed: 11/25/2022]
Abstract
Glycyrrhiza uralensis roots used in this study were produced using novel cultivation systems, including artificial hydroponics and artificial hydroponic-field hybrid cultivation. The equivalency between G. uralensis root extracts produced by hydroponics and/or hybrid cultivation and a commercial Glycyrrhiza crude drug were evaluated for both safety and efficacy, and there were no significant differences in terms of mutagenicity on the Ames tests. The levels of cadmium and mercury in both hydroponic roots and crude drugs were less than the limit of quantitation. Arsenic levels were lower in all hydroponic roots than in the crude drug, whereas mean lead levels in the crude drug were not significantly different from those in the hydroponically cultivated G. uralensis roots. Both hydroponic and hybrid-cultivated root extracts showed antiallergic activities against contact hypersensitivity that were similar to those of the crude drug extracts. These study results suggest that hydroponic and hybrid-cultivated roots are equivalent in safety and efficacy to those of commercial crude drugs. Further studies are necessary before the roots are applicable as replacements for the currently available commercial crude drugs produced from wild plant resources.
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Affiliation(s)
- H Akiyama
- National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo, 158-8501, Japan.
| | - M Nose
- Faculty of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku, Nagoya, 468-8503, Japan
| | - N Ohtsuki
- National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo, 158-8501, Japan
| | - S Hisaka
- Faculty of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku, Nagoya, 468-8503, Japan
| | - H Takiguchi
- National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo, 158-8501, Japan
| | - A Tada
- National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo, 158-8501, Japan
| | - N Sugimoto
- National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo, 158-8501, Japan
| | - H Fuchino
- Tsukuba Division, Research Center for Medicinal Plant Resources, National Institutes of Biomedical Innovation, Health and Nutrition, 1-2 Hachimandai, Tsukuba, Ibaraki, 303-0843, Japan
| | - T Inui
- Tsukuba Division, Research Center for Medicinal Plant Resources, National Institutes of Biomedical Innovation, Health and Nutrition, 1-2 Hachimandai, Tsukuba, Ibaraki, 303-0843, Japan
| | - N Kawano
- Tsukuba Division, Research Center for Medicinal Plant Resources, National Institutes of Biomedical Innovation, Health and Nutrition, 1-2 Hachimandai, Tsukuba, Ibaraki, 303-0843, Japan
| | - S Hayashi
- Hokkaido Division, Research Center for Medicinal Plant Resources, National Institutes of Biomedical Innovation, Health and Nutrition, 108-4 Aza Ohashi, Nayoro, Hokkaido, 096-0065, Japan
| | - A Hishida
- Hokkaido Division, Research Center for Medicinal Plant Resources, National Institutes of Biomedical Innovation, Health and Nutrition, 108-4 Aza Ohashi, Nayoro, Hokkaido, 096-0065, Japan
| | - T Kudo
- Kajima Technical Research Institute, Kajima Corporation, 19-1, Tobitakyu 2-chome, Chofushi, Tokyo, 182-0036, Japan
| | - K Sugiyama
- National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo, 158-8501, Japan
| | - Y Abe
- National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo, 158-8501, Japan
| | - M Mutsuga
- National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo, 158-8501, Japan
| | - N Kawahara
- Tsukuba Division, Research Center for Medicinal Plant Resources, National Institutes of Biomedical Innovation, Health and Nutrition, 1-2 Hachimandai, Tsukuba, Ibaraki, 303-0843, Japan
| | - K Yoshimatsu
- Tsukuba Division, Research Center for Medicinal Plant Resources, National Institutes of Biomedical Innovation, Health and Nutrition, 1-2 Hachimandai, Tsukuba, Ibaraki, 303-0843, Japan
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Yano M, Kawano N, Tanaka S, Kohmura K, Katayama H, Nishioka K, Ozaki N. Dysfunction of response inhibition in eating disorders. J Clin Exp Neuropsychol 2016; 38:700-8. [DOI: 10.1080/13803395.2016.1151480] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Kawamura T, Umemura T, Umegaki H, Imamine R, Kawano N, Mase H, Mizoguchi A, Minatoguchi M, Kusama M, Kouchi Y, Watarai A, Kanai A, Nakashima E, Hotta N. Factors Associated with Changes in Brain Atrophy during a Three-Year Observation in Elderly Diabetic Patients: Effect of Renal Impairment on Hippocampal Atrophy. Dement Geriatr Cogn Dis Extra 2016; 6:55-67. [PMID: 27293417 PMCID: PMC4899660 DOI: 10.1159/000443497] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND/AIMS We conducted a 3-year longitudinal study concerning factors associated with changes in brain atrophy in elderly diabetic patients. METHODS We evaluated hippocampal and global brain atrophy using automatic voxel-based morphometry of structural magnetic resonance images, 4 cognitive function tests, and cerebral small vessel disease (SVD) in 66 diabetic patients. RESULTS During the 3-year follow-up, hippocampal and global brain atrophy advanced, and cognitive functions worsened. For changes in hippocampal atrophy, changes in estimated glomerular filtration rate (eGFR), albuminuria, and being an ApoE ε4 carrier were independent factors; change in the number of silent brain infarctions was an independent factor for changes in global brain atrophy. A significant association of changes in eGFR and albuminuria with hippocampal atrophy remained after adjusting for confounders including SVD. Both types of brain atrophy at baseline were significantly correlated with cognitive impairment at baseline and especially associated with changes in delayed word recall during the follow-up after adjusting for confounders. CONCLUSION Changes in eGFR and albuminuria during follow-up were independent risk factors for hippocampal atrophy, which was associated with decline in delayed word recall, suggesting that management of chronic kidney disease may prevent the progression of hippocampal atrophy.
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Affiliation(s)
- Takahiko Kawamura
- Departments of Diabetes and Endocrine Internal Medicine, Chubu Rosai Hospital, Nagoya, Japan; Center for Preventive Medicine, Chubu Rosai Hospital, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | | | - Hiroyuki Umegaki
- Departments of Community Health Care and Geriatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Rui Imamine
- Departments of Diabetes and Endocrine Internal Medicine, Chubu Rosai Hospital, Nagoya, Japan
| | - Naoko Kawano
- Departments of Community Health Care and Geriatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan; Departments of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hajime Mase
- Departments of Diabetes and Endocrine Internal Medicine, Chubu Rosai Hospital, Nagoya, Japan
| | - Asako Mizoguchi
- Departments of Diabetes and Endocrine Internal Medicine, Chubu Rosai Hospital, Nagoya, Japan
| | - Makiko Minatoguchi
- Departments of Diabetes and Endocrine Internal Medicine, Chubu Rosai Hospital, Nagoya, Japan
| | - Minoru Kusama
- Departments of Diabetes and Endocrine Internal Medicine, Chubu Rosai Hospital, Nagoya, Japan
| | - Yu Kouchi
- Departments of Diabetes and Endocrine Internal Medicine, Chubu Rosai Hospital, Nagoya, Japan
| | - Atsuko Watarai
- Center for Preventive Medicine, Chubu Rosai Hospital, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Akio Kanai
- Center for Preventive Medicine, Chubu Rosai Hospital, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Eitaro Nakashima
- Departments of Diabetes and Endocrine Internal Medicine, Chubu Rosai Hospital, Nagoya, Japan
| | - Nigishi Hotta
- Departments of Diabetes and Endocrine Internal Medicine, Chubu Rosai Hospital, Nagoya, Japan
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Imaeda M, Tanaka S, Fujishiro H, Kato S, Ishigami M, Kawano N, Katayama H, Kohmura K, Ando M, Nishioka K, Ozaki N. Risk factors for elevated liver enzymes during refeeding of severely malnourished patients with eating disorders: a retrospective cohort study. J Eat Disord 2016; 4:37. [PMID: 27980772 PMCID: PMC5142434 DOI: 10.1186/s40337-016-0127-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 11/04/2016] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND There are few previous reports regarding the cause and evolution of liver injury in patients with anorexia nervosa (AN) during the refeeding process, and its management remains controversial. This study aimed to determine the risk factors for elevated liver enzymes during refeeding and their effect on the therapeutic process in severely malnourished patients with eating disorders. METHODS In a retrospective cohort study of 167 female inpatients in a single hospital from January 2004 to March 2015, 67 who had normal alanine aminotransferase (ALT) levels on admission were divided into two groups according to the presence or absence of elevated ALT levels during refeeding, and then compared. RESULTS The median age and body mass index (BMI) of the patients on admission were 22 [interquartile range (IQR), 16-33] years and 12.2 (IQR, 11.1-13.0) kg/m2, respectively. Compared with their cohorts, significantly more patients in the early onset age group (<15 years old) had elevated ALT levels during refeeding (67% vs. 33%, p = 0.033), as did patients with longer median time to nadir BMI (3.0 vs. 0 days, p = 0.03). In addition, onset age [odds ratio (OR): 0.274; 95% confidence interval (CI): 0.077-0.981; p = 0.047] and time to nadir BMI (OR: 1.271; 95% CI: 1.035-1.56; p = 0.022) were significantly associated with the odds of elevated ALT levels during refeeding. CONCLUSIONS The results of this study suggest that early age at onset may be a potential risk factor for elevated ALT levels during refeeding in severely malnourished patients with eating disorders. Furthermore, elevated ALT levels during refeeding were significantly associated with delay in the start of weight gain. No significant relationship was found between the amount of initial prescribed calories and elevated ALT levels during refeeding. The median time to maximum ALT was 27 (IQR, 21-38) days after the refeeding process started.
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Affiliation(s)
- Miho Imaeda
- Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa, Nagoya, Aichi 466-8550 Japan ; Sakura Clinic, 5-6 Dankeidori, Showa, Nagoya, Aichi 466-0842 Japan
| | - Satoshi Tanaka
- Department of Psychiatry, Nagoya University Hospital, 65 Tsurumai, Showa, Nagoya, Aichi 466-8550 Japan
| | - Hiroshige Fujishiro
- Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa, Nagoya, Aichi 466-8550 Japan
| | - Saki Kato
- Saku Central Hospital, 197 Usuda, Saku, Nagano 384-0301 Japan
| | - Masatoshi Ishigami
- Department of Gastroenterology and Hepatology, Nagoya University Hospital, 65 Tsurumai, Showa, Nagoya, Aichi 466-8550 Japan
| | - Naoko Kawano
- Institute of Innovation for Future Society, Nagoya University, Furocho, Chikusa, Nagoya, Aichi 464-8601 Japan
| | - Hiroto Katayama
- Department of Neuropsychiatry, Faculty of Medical Sciences, University of Fukui, 23-3, Matsuokashimoaizuki, Eiheiji, Yoshida, Fukui 910-1104 Japan
| | - Kunihiro Kohmura
- Seichiryo Hospital, 16-27 Tsurumai 4, Showa, Nagoya, Aichi 466-0064 Japan
| | - Masahiko Ando
- Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, 65 Tsurumai, Showa, Nagoya, Aichi 466-8550 Japan
| | - Kazuo Nishioka
- National Hospital Organization Higashi Owari National Hospital, 1301 Omorikita 2, Moriyama, Nagoya, Aichi 463-0802 Japan
| | - Norio Ozaki
- Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa, Nagoya, Aichi 466-8550 Japan
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Tanaka S, Yoshida K, Katayama H, Kohmura K, Kawano N, Imaeda M, Kato S, Ando M, Aleksic B, Nishioka K, Ozaki N. Association of Beck Depression Inventory score and Temperament and Character Inventory-125 in patients with eating disorders and severe malnutrition. J Eat Disord 2015; 3:36. [PMID: 26550476 PMCID: PMC4636062 DOI: 10.1186/s40337-015-0077-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Accepted: 10/30/2015] [Indexed: 11/10/2022] Open
Abstract
The authors investigated the association between personality and physical/mental status in malnourished patients with eating disorders. A total of 45 patients with anorexia nervosa, avoidant/restrictive food intake disorder, and other specified feeding or eating disorders were included and compared with 39 healthy controls. Personality characteristics and severity of depression were assessed using the Temperament and Character Inventory-125 and Beck's Depression Inventory. Depression correlated with harm avoidance and self-directedness in both cases and controls. Body mass index did not correlate with personality in either group. These findings should be verified by longitudinal studies with higher weight/weight recovered patients.
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Affiliation(s)
- Satoshi Tanaka
- />Department of Psychiatry, Nagoya University Hospital, 65 Tsurumai, Showa, Nagoya, Aichi 466-8550 Japan
| | - Keizo Yoshida
- />Health Care Promotion Division, DENSO Corporation, 1-1, Showacho, Kariya, Aichi 448-8661 Japan
| | - Hiroto Katayama
- />Minami-Seikyo Hospital, 2-204, Minamioodaka, Midori, Nagoya, Aichi 459-8540 Japan
| | - Kunihiro Kohmura
- />Seichiryo Hospital, 16-27, Tsurumai 4, Showa, Nagoya, Aichi 466-0064 Japan
| | - Naoko Kawano
- />Institute of Innovation for Future Society, Nagoya University, Furocho, Chikusa, Nagoya, Aichi 464-8601 Japan
| | - Miho Imaeda
- />Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa, Nagoya, Aichi 466-8550 Japan
| | - Saki Kato
- />Saku Central Hospital, 197 Usuda, Saku, Nagano 384-0301 Japan
| | - Masahiko Ando
- />Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, 65 Tsurumai, Showa, Nagoya, Aichi 466-8550 Japan
| | - Branko Aleksic
- />Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa, Nagoya, Aichi 466-8550 Japan
| | - Kazuo Nishioka
- />Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa, Nagoya, Aichi 466-8550 Japan
| | - Norio Ozaki
- />Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa, Nagoya, Aichi 466-8550 Japan
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Yamamoto M, Kushima I, Kimura H, Hayashi A, Kawano N, Aleksic B, Iidaka T, Ozaki N. White matter microstructure between the pre-SMA and the cingulum bundle is related to response conflict in healthy subjects. Brain Behav 2015; 5:e00375. [PMID: 26516610 PMCID: PMC4614048 DOI: 10.1002/brb3.375] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [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: 01/20/2015] [Revised: 07/23/2015] [Accepted: 07/24/2015] [Indexed: 11/06/2022] Open
Abstract
INTRODUCTION Response conflict involves selectively attending to relevant information and suppressing distracting, irrelevant information. The medial frontal cortex (MFC) is considered to be involved in response conflict. However, it remains unclear which white matter connectivity is associated with response conflict. This study aimed to delineate the neural connectivity of response conflict in healthy subjects and investigate the association between white matter microstructure and performance of a response conflict task. METHOD Twenty-eight healthy subjects underwent functional magnetic resonance imaging (fMRI) during the Flanker task and diffusion MRI. We identified the presupplementary motor area (pre-SMA) using fMRI. Furthermore, we delineated the white matter connectivity between the pre-SMA and the cingulum bundle (CB), which is located in the MFC, using probabilistic tractography. We calculated the mean diffusivity (MD), index of white matter microstructure, of this tract and evaluate the association between MD and performance of the Flanker task. RESULT The mean MD of this tract was significantly and positively associated with performance of the Flanker task. CONCLUSION The present study suggests the white matter connectivity between the pre-SMA and the CB is related to the response conflict in healthy subjects and finer white matter microstructure is associated with smaller response conflict.
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Affiliation(s)
- Maeri Yamamoto
- Department of Psychiatry Graduate School of Medicine Nagoya University Nagoya Aichi Japan
| | - Itaru Kushima
- Department of Psychiatry Graduate School of Medicine Nagoya University Nagoya Aichi Japan ; Institute for Advanced Research Nagoya University Nagoya Aichi Japan
| | - Hiroki Kimura
- Department of Psychiatry Graduate School of Medicine Nagoya University Nagoya Aichi Japan
| | - Akiko Hayashi
- Department of Psychiatry Graduate School of Medicine Nagoya University Nagoya Aichi Japan
| | - Naoko Kawano
- Department of Psychiatry Graduate School of Medicine Nagoya University Nagoya Aichi Japan ; Institute of Innovation for Future Society Nagoya University Nagoya Aichi Japan
| | - Branko Aleksic
- Department of Psychiatry Graduate School of Medicine Nagoya University Nagoya Aichi Japan
| | - Tetsuya Iidaka
- Department of Psychiatry Graduate School of Medicine Nagoya University Nagoya Aichi Japan
| | - Norio Ozaki
- Department of Psychiatry Graduate School of Medicine Nagoya University Nagoya Aichi Japan
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Miyata S, Noda A, Iwamoto K, Kawano N, Banno M, Tsuruta Y, Noda Y, Ozaki N. Impaired cortical oxygenation is related to mood disturbance resulting from three nights of sleep restriction. Sleep Biol Rhythms 2015. [DOI: 10.1111/sbr.12130] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Seiko Miyata
- Department of Biomedical Sciences; Chubu University; Kasugai Japan
| | - Akiko Noda
- Department of Biomedical Sciences; Chubu University; Kasugai Japan
- Department of Biomedical Sciences; Chubu University Graduate School of Life and Health Sciences; Kasugai Japan
| | - Kunihiro Iwamoto
- Department of Psychiatry; Nagoya University Graduate School of Medicine; Nagoya Japan
| | - Naoko Kawano
- Department of Psychiatry; Nagoya University Graduate School of Medicine; Nagoya Japan
| | - Masahiro Banno
- Department of Psychiatry; Nagoya University Graduate School of Medicine; Nagoya Japan
| | - Yoshiyuki Tsuruta
- Department of Psychiatry; Nagoya University Graduate School of Medicine; Nagoya Japan
| | - Yukihiro Noda
- Division of Clinical Sciences and Neuropsychopharmacology; Meijo University Graduate School of Pharmacy; Nagoya Japan
| | - Norio Ozaki
- Department of Psychiatry; Nagoya University Graduate School of Medicine; Nagoya Japan
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Miyata A, Iwamoto K, Kawano N, Kohmura K, Yamamoto M, Aleksic B, Ebe K, Noda A, Noda Y, Iritani S, Ozaki N. The effects of acute treatment with ramelteon, triazolam, and placebo on driving performance, cognitive function, and equilibrium function in healthy volunteers. Psychopharmacology (Berl) 2015; 232:2127-37. [PMID: 25533998 DOI: 10.1007/s00213-014-3843-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Accepted: 12/08/2014] [Indexed: 12/21/2022]
Abstract
RATIONALE Hypnotics are widely used to treat insomnia but adverse effects of different hypnotics, especially benzodiazepine receptor agonists, are getting more attention lately. The effects of novel hypnotics have not been fully examined. OBJECTIVE This study aims to assess the effects of two hypnotics, ramelteon and triazolam, on driving performance, cognitive function, and equilibrium function. METHODS In this double-blinded, three-way crossover trial, 17 healthy males received acute doses of 8 mg ramelteon, 0.125 mg triazolam, and placebo. The subjects were administered three driving tasks-road-tracking, car-following, and harsh-braking-using a driving simulator and three cognitive tasks-Continuous Performance Test, N-back Test, and Trail-Making Test-at baseline and at 1 and 4 h post-dosing. The Stanford Sleepiness Scale scores and computerized posturography were also assessed. RESULTS In the driving simulations, ramelteon and triazolam increased the number of subjects who slid off the road. Triazolam increased the standard deviation of lateral position compared to ramelteon and placebo at 1 h post-dosing. Ramelteon and triazolam significantly increased the time to complete of Trail-Making Test part A and the environmental area in posturography compared to placebo at 1 and 4 h post-dosing. Ramelteon and triazolam significantly increased subjective sleepiness compared to placebo at 1 h post-dosing. CONCLUSIONS Ramelteon may affect road-tracking performance, visual attention and/or psychomotor speed measured by Trail-Making Test part A, and body balance in acute dosing. Lower dose of triazolam also impaired performance worse than ramelteon. Physicians should consider risks and benefits when prescribing both drugs, especially in the initial period of administration.
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Affiliation(s)
- Akemi Miyata
- Department of Psychiatry, Nagoya University, Graduate School of Medicine, 65 Tsurumai, Showa, Nagoya, Aichi, 466-8550, Japan
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Wang C, Koide T, Kimura H, Kunimoto S, Yoshimi A, Nakamura Y, Kushima I, Banno M, Kawano N, Takasaki Y, Xing J, Noda Y, Mouri A, Aleksic B, Ikeda M, Okada T, Iidaka T, Inada T, Iwata N, Ozaki N. Novel rare variants in F-box protein 45 (FBXO45) in schizophrenia. Schizophr Res 2014; 157:149-56. [PMID: 24878430 DOI: 10.1016/j.schres.2014.04.032] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [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: 08/01/2013] [Revised: 03/31/2014] [Accepted: 04/23/2014] [Indexed: 10/25/2022]
Abstract
The ubiquitin ligase F-box protein 45 (FBXO45) is critical for synaptogenesis, neuronal migration, and synaptic transmission. FBXO45 is included in the 3q29 microdeletion region that confers a significant risk for schizophrenia, as shown by rare structural variant studies. Thus, FBXO45 is considered a prominent candidate for mediating schizophrenia pathogenesis. Here, we investigated rare, deleterious single nucleotide variants (SNVs) as well as small insertions and deletions (INDELs) in FBXO45 that may contribute to schizophrenia susceptibility. Using Sanger sequencing, we performed mutation screening in FBXO45 exon regions in 337 schizophrenia patients. Novel missense or nonsense variants were followed up with a genetic association study in an independent sample set of 601 schizophrenia patients and 916 controls, a case report for assessing the clinical consequence of the mutations, a pedigree study for measuring mutation inheritance in the proband's family, bioinformatics analyses for evaluating mutation effect on protein structure and function, and mRNA expression analysis for examining mutation transcriptional influence on FBXO45 expression. One heterozygous, novel, and rare missense mutation (R108C) was identified in a single schizophrenia patient and in his healthy mother. At age 20, this patient was diagnosed with paranoid schizophrenia and carried some clinical features of 3q29 deletion phenotypes, including premorbid IQ decline. With follow-up genotyping, this mutation was not found in either the schizophrenia group (0/601) or the healthy control group (0/916). Bioinformatics analyses predicted that R108C probably pathologically impacted the structure and function of the FBXO45 protein. The relative expression of FBXO45 in SCZ case with R108C mutation was relatively low when compared to 50 schizophrenia patients and 52 healthy controls. The R108C mutation in FBXO45 is a rare variant with a modest effect on schizophrenia risk that may disrupt the structure and function of the FBXO45 protein. Our findings also suggest that FBXO45 may be a new attractive candidate gene for schizophrenia.
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Affiliation(s)
- Chenyao Wang
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takayoshi Koide
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hiroki Kimura
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Shohko Kunimoto
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Akira Yoshimi
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yukako Nakamura
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Itaru Kushima
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masahiro Banno
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Naoko Kawano
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuto Takasaki
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Jingrui Xing
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yukihiro Noda
- Division of Clinical Sciences and Neuropsychopharmacology, Graduate School of Pharmacy, Meijo University, Nagoya, Japan
| | - Akihiro Mouri
- Division of Clinical Sciences and Neuropsychopharmacology, Graduate School of Pharmacy, Meijo University, Nagoya, Japan
| | - Branko Aleksic
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan.
| | - Masashi Ikeda
- Department of Psychiatry, School of Medicine, Fujita Health University, Toyoake, Aichi, Japan
| | - Takashi Okada
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tetsuya Iidaka
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Toshiya Inada
- Institute of Neuropsychiatry, Seiwa Hospital, Tokyo, Japan
| | - Nakao Iwata
- Department of Psychiatry, School of Medicine, Fujita Health University, Toyoake, Aichi, Japan
| | - Norio Ozaki
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Katayama H, Kohmura K, Tanaka S, Imaeda M, Kawano N, Noda Y, Nishioka K, Ando M, Aleksic B, Iidaka T, Ozaki N. Social insecurity in relation to orbitofrontal activity in patients with eating disorders: a near-infrared spectroscopy study. BMC Psychiatry 2014; 14:173. [PMID: 24924100 PMCID: PMC4067083 DOI: 10.1186/1471-244x-14-173] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2013] [Accepted: 06/05/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Functional neuroimaging techniques are widely used to elucidate changes in brain activity, and various questionnaires are used to investigate psychopathological features in patients with eating disorders (ED). It is well known that social skills and interpersonal difficulties are strongly associated with the psychopathology of patients with ED. However, few studies have examined the association between brain activity and social relationships in patients with ED, particularly in patients with extremely low body weight. METHODS In this study, 22-channel near-infrared spectroscopy was used to quantify regional hemodynamic changes during a letter fluency task (LFT) in 20 female patients with ED with a mean body mass index of 14.0 kg/m(2) and 31 female controls (CTLs). Symptoms were assessed using the Eating Disorder Inventory-2 and Beck Depression Inventory. We hypothesized that frontal activity in patients with ED would be lower than in CTLs and would show different correlations with psychopathological features compared with CTLs. RESULTS The LFT performance and score on the social insecurity subscale of the Eating Disorder Inventory-2 were significantly higher in the ED group than in the CTL group. The mean change in oxygenated hemoglobin (oxy-Hb) in bilateral frontal regions during the LFT was significantly smaller in the ED group than in the CTL group. Social insecurity score was positively correlated with the concentration of oxy-Hb in the bilateral orbitofrontal cortex in the ED group but not in the CTL group. CONCLUSIONS These results suggest that activity of the orbitofrontal cortex is associated with social insecurity and disturbed in patients with ED. Therefore, disturbed orbitofrontal cortex activity may underlie the lack of insight and social isolation that is characteristic of patients with ED.
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Affiliation(s)
- Hiroto Katayama
- Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi-ken 466-8550, Japan
| | - Kunihiro Kohmura
- Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi-ken 466-8550, Japan
| | - Satoshi Tanaka
- Department of Psychiatry, Nagoya University Hospital, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi-ken 466-8550, Japan
| | - Miho Imaeda
- Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi-ken 466-8550, Japan
| | - Naoko Kawano
- Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi-ken 466-8550, Japan
| | - Yukihiro Noda
- Division of Clinical Science and Neuropsychopharmacology, Graduate School of Pharmacy, Meijo University, 150 Yagotoyama, Tenpaku-ku, Nagoya, Aichi-ken 468-8503, Japan
- The Academic Frontier Project for Private Universities, Comparative Cognitive Science Institutes, Meijo University, 1-501 Shiogamaguchi, Tenpaku-ku, Nagoya, Aichi-ken 468-8502, Japan
| | - Kazuo Nishioka
- Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi-ken 466-8550, Japan
| | - Masahiko Ando
- Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya, Aichi-ken 466-8550, Japan
| | - Branko Aleksic
- Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi-ken 466-8550, Japan
| | - Tetsuya Iidaka
- Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi-ken 466-8550, Japan
| | - Norio Ozaki
- Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi-ken 466-8550, Japan
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Harada K, Eto N, Honda Y, Kawano N, Ogushi Y, Matsuo M, Nishimura R. A comparison of the characteristics of suicide attempters with and without psychiatric consultation before their suicidal behaviours: a cross-sectional study. BMC Psychiatry 2014; 14:146. [PMID: 24886087 PMCID: PMC4032354 DOI: 10.1186/1471-244x-14-146] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Accepted: 05/16/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Because psychiatric disorders are risk factors for suicide, psychiatric consultation should be an essential element of suicide prevention among individuals with a high risk of suicide. The aim of the present study was to compare the characteristics of individuals who had or had not received psychiatric consultation before they attempted suicide in Japan. METHODS Clinical records were used to identify 300 consecutive persons who were admitted to the hospital for attempting suicide between April 2006 and March 2013. We divided the patients into two groups. One group consisted of patients who consulted a psychiatrist before their suicidal behaviours (the consultation group), and the other group consisted of patients who had not consulted a psychiatrist before their suicidal behaviours (the non-consultation group). Group differences were analysed with respect to gender, age, method of suicide attempts, psychiatric diagnosis (ICD-10), and duration of hospitalisation in the emergency unit. RESULTS Females tended to be over-represented in the consultation group (73.0%), and males tended to be over-represented in the non-consultation group (59.8%). Poisoning by prescription drugs was used more frequently as a method of suicide in the consultation group than in the non-consultation group. Neuroticism and related disorders were higher in the non-consultation group (33.7%) than in the consultation group (18.9%). Mood disorders (32.6%) were nearly as common as neuroticism in the non-consultation group, and together they accounted for almost two-thirds of all diagnoses. Mood disorders were comparable between the consultation group (30.9%) and the non-consultation group (32.6%). Adult personality disorders (13.3%) and schizophrenia and related disorders (26.0%) were higher in the consultation group than in the non-consultation group. CONCLUSIONS Measures have to be taken to encourage people with these diverse characteristics to consult psychiatrists, and psychiatrists have to regularly evaluate patients for suicide risk. Furthermore, we need further research on the relationship between psychiatric consultation and poisoning by prescribed drugs.
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Affiliation(s)
- Kohei Harada
- Department of Psychiatry, Faculty of Medicine, Fukuoka University, 7-45-1 Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan.
| | - Nobuaki Eto
- Department of Psychiatry, Faculty of Medicine, Fukuoka University, 7-45-1 Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan
| | - Yoko Honda
- Department of Psychiatry, Faculty of Medicine, Fukuoka University, 7-45-1 Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan
| | - Naoko Kawano
- Department of Psychiatry, Faculty of Medicine, Fukuoka University, 7-45-1 Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan
| | - Yuma Ogushi
- Department of Psychiatry, Faculty of Medicine, Fukuoka University, 7-45-1 Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan
| | - Mayuko Matsuo
- Department of Psychiatry, Faculty of Medicine, Fukuoka University, 7-45-1 Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan
| | - Ryoji Nishimura
- Department of Psychiatry, Faculty of Medicine, Fukuoka University, 7-45-1 Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan
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Umegaki H, Kawamura T, Umemura T, Kawano N. Factors associated with cognitive decline in older adults with type 2 diabetes mellitus during a 6-year observation. Geriatr Gerontol Int 2014; 15:302-10. [PMID: 24597930 DOI: 10.1111/ggi.12273] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/21/2014] [Indexed: 11/29/2022]
Abstract
AIMS Type 2 diabetes mellitus (T2DM) is a risk for cognitive decline in older adults. The current study was carried out to determine the factors associated with cognitive decline. METHODS The older T2DM patients (aged ≥65 years, mean age 79.2 ± 5.1 years) were observed for 6 years, and the mean values in clinical indicators of participants with and without cognitive decline over a 6-year period were compared. Then, multiple logistic analysis was carried out to determine the factors associated with cognitive decline. Separate analyses were also carried out for each of five cognitive assessments (Mini-Mental State Examination, word immediate and delayed recall, Stroop test, digit symbol substitution). RESULTS In the composite of several cognitive assessments, higher age and a lower level of high-density lipoprotein cholesterol were associated with cognitive decline in older T2DM patients. Lower systolic blood pressure was associated with a decline in delayed word list recall. Higher plasma insulin level was associated with a decline in the Stroop test performance. CONCLUSION Lower high-density lipoprotein cholesterol was significantly associated with general cognitive decline in older T2DM patients during our 6-year observation. Several other factors were also associated with cognitive assessments of various cognitive domains.
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Affiliation(s)
- Hiroyuki Umegaki
- Department of Community Healthcare & Geriatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Kawamura T, Umemura T, Umegaki H, Imamine R, Kawano N, Tanaka C, Kawai M, Minatoguchi M, Kusama M, Kouchi Y, Watarai A, Kanai A, Nakashima E, Hotta N. Effect of renal impairment on cognitive function during a 3-year follow up in elderly patients with type 2 diabetes: Association with microinflammation. J Diabetes Investig 2014; 5:597-605. [PMID: 25411629 PMCID: PMC4188119 DOI: 10.1111/jdi.12190] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [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: 07/12/2013] [Revised: 11/12/2013] [Accepted: 11/14/2013] [Indexed: 11/29/2022] Open
Abstract
Aims/Introduction We investigated the effect of renal impairment on cognitive function during a 3‐year follow up in elderly type 2 diabetic patients, and an association with microinflammation. Materials and Methods Four cognitive function tests – Mini‐Mental State Examination (MMSE), word recall, Digit Symbol Substitution (DSS) and Stroop Color Word – were carried out in 67 patients. Renal impairment was defined as the presence of albuminuria and a decline in estimated glomerular filtration (eGFR) <60 mL/min/1.73 m2. Inflammatory markers, such as highly sensitive C‐reactive protein (hs‐CRP), tumor necrotizing factor‐α (TNF‐α), interleukin (IL)‐1β and IL‐6, were measured at baseline. Results At baseline, cognitive decline was found in patients with renal impairment. The DSS test was independently associated with eGFR decline, whereas MMSE tended to be associated with albuminuria after adjusting for confounding factors. Regarding changes in cognitive function and renal impairment, changes in urinary albumin to creatinine ratios were strongly and independently associated with changes in word recall scores. In patients with persistent eGFR decline, there was a tendency toward a greater decrease in MMSE and DSS scores, whereas in those with newly detected albuminuria, there was a tendency toward a greater decrease in word recall scores. Increased baseline levels of hs‐CRP, TNF‐α and IL‐6 were associated with renal impairment and cognitive function, especially DSS tests, respectively. However, the increased levels were not independent predictors for cognitive decline. Conclusions The present study showed a reciprocal relationship between cognitive decline and renal impairment, especially progression of albuminuria. Thus, monitoring treatment using renal biomarkers will be important for preserving both renal and cognitive function.
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Affiliation(s)
- Takahiko Kawamura
- Department of Diabetes and Endocrine Internal Medicine Nagoya University Graduate School of Medicine Nagoya Japan ; Center for Preventive Medicine Nagoya University Graduate School of Medicine Nagoya Japan
| | - Toshitaka Umemura
- Department of Neurology Chubu Rosai Hospital Nagoya University Graduate School of Medicine Nagoya Japan
| | - Hiroyuki Umegaki
- Department of Geriatrics Nagoya University Graduate School of Medicine Nagoya Japan
| | - Rui Imamine
- Department of Diabetes and Endocrine Internal Medicine Nagoya University Graduate School of Medicine Nagoya Japan
| | - Naoko Kawano
- Department of Geriatrics Nagoya University Graduate School of Medicine Nagoya Japan ; Department of Psychiatry Nagoya University Graduate School of Medicine Nagoya Japan
| | - Chiai Tanaka
- Department of Diabetes and Endocrine Internal Medicine Nagoya University Graduate School of Medicine Nagoya Japan
| | - Mariko Kawai
- Department of Diabetes and Endocrine Internal Medicine Nagoya University Graduate School of Medicine Nagoya Japan
| | - Makiko Minatoguchi
- Department of Diabetes and Endocrine Internal Medicine Nagoya University Graduate School of Medicine Nagoya Japan
| | - Minoru Kusama
- Department of Diabetes and Endocrine Internal Medicine Nagoya University Graduate School of Medicine Nagoya Japan
| | - Yu Kouchi
- Department of Diabetes and Endocrine Internal Medicine Nagoya University Graduate School of Medicine Nagoya Japan
| | | | - Akio Kanai
- Center for Preventive Medicine Nagoya University Graduate School of Medicine Nagoya Japan
| | - Eitaro Nakashima
- Department of Diabetes and Endocrine Internal Medicine Nagoya University Graduate School of Medicine Nagoya Japan
| | - Nigishi Hotta
- Department of Diabetes and Endocrine Internal Medicine Nagoya University Graduate School of Medicine Nagoya Japan
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Iwamoto K, Kawano N, Sasada K, Kohmura K, Yamamoto M, Ebe K, Noda Y, Ozaki N. Effects of low-dose mirtazapine on driving performance in healthy volunteers. Hum Psychopharmacol 2013; 28:523-8. [PMID: 23813948 DOI: 10.1002/hup.2327] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [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: 11/16/2012] [Accepted: 04/28/2013] [Indexed: 11/09/2022]
Abstract
OBJECTIVE This study aimed to assess whether a lower initial dose of mirtazapine can lessen the harmful effect on driving performance or not in a double-blinded, placebo-controlled crossover trial. METHODS Thirteen healthy men received 8 days of continuous nocturnal doses of mirtazapine at 7.5 mg or 15 mg, or placebo. At baseline and on days 2 and 9, subjects performed three driving tasks (road-tracking, car-following, and harsh-braking tasks) using a driving simulator and a Continuous Performance Test. Stanford Sleepiness Scale (SSS) scores were also assessed. In the mirtazapine 7.5 mg series, 15 mg of mirtazapine was additionally administered on day 9, followed by all the same assessments on day 10. RESULTS Mirtazapine 7.5 mg had no significant effects on any tasks except for SSS compared with placebo. Mirtazapine 15 mg impaired road-tracking task and SSS. The increase in mirtazapine dose also had no significant effects on any tasks compared with those before dose increase. CONCLUSIONS Mirtazapine 7.5 mg did not cause driving impairment compared with mirtazapine 15 mg, while both doses of mirtazapine produced subjective somnolence. The increase in mirtazapine had no detrimental effects on psychomotor performance. Initial low-dose mirtazapine may be safer for automobile driving than the normal starting dose.
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Affiliation(s)
- Kunihiro Iwamoto
- Department of Psychiatry, Nagoya University, Graduate School of Medicine, Nagoya, Aichi, Japan
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Umemura T, Kawamura T, Umegaki H, Kawano N, Mashita S, Sakakibara T, Hotta N, Sobue G. Association of chronic kidney disease and cerebral small vessel disease with cognitive impairment in elderly patients with type 2 diabetes. Dement Geriatr Cogn Dis Extra 2013; 3:212-22. [PMID: 23888167 PMCID: PMC3721136 DOI: 10.1159/000351424] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Background/Aims In recent years, the relationship between chronic kidney disease (CKD) and cognitive impairment has been attracting attention. Cerebral small vessel disease (SVD) is also associated with an increased risk of cognitive impairment. However, it is still unknown whether CKD markers are associated with cognitive impairment independently of SVD in elderly diabetic patients. Methods Seventy-nine type 2 diabetic patients (mean age, 76.0 years) were enrolled in the present study. CKD was defined as the presence of albuminuria and/or a low estimated glomerular filtration rate (eGFR <60 ml/min/1.73 m2). SVD was evaluated by the presence and severity of silent brain infarcts (SBIs) and white matter lesions (WMLs) on brain magnetic resonance imaging. Neuropsychological tests were assessed using four validated cognitive instruments. Results In multiple linear regression analyses, albuminuria was associated with worse modified Stroop Color Word scores (β = 0.284, p = 0.017) and low eGFR was associated with reduced Digit Symbol Substitution scores (β = −0.224, p = 0.026) after adjustment for age, sex, education years, diabetes duration, hypertension, multiple SBIs, and advanced WMLs. In contrast, there were no significant associations between CKD markers and Mini-Mental State Examination or Word Recall scores. Conclusion Our findings suggest that albuminuria and low eGFR are associated with frontal lobe dysfunction independently of SVD in elderly type 2 diabetic patients.
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Kawano N, Iwamoto K, Ebe K, Iritani S, Ozaki N. P2–319: Collection of data for elderly drivers without dementia during simulated driving. Alzheimers Dement 2013. [DOI: 10.1016/j.jalz.2013.05.967] [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] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | - Kazutoshi Ebe
- Collaborative Safety Research Center, TEMA Ann Arbor Michigan United States
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Sasada K, Iwamoto K, Kawano N, Kohmura K, Yamamoto M, Aleksic B, Ebe K, Noda Y, Ozaki N. Effects of repeated dosing with mirtazapine, trazodone, or placebo on driving performance and cognitive function in healthy volunteers. Hum Psychopharmacol 2013; 28:281-6. [PMID: 23661283 DOI: 10.1002/hup.2321] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [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] [Received: 09/14/2012] [Accepted: 03/27/2013] [Indexed: 11/07/2022]
Abstract
OBJECTIVE This study aimed to evaluate the effects of repeated treatments with the sedative antidepressants mirtazapine and trazodone on driving performance and cognitive function. METHODS Nineteen healthy men received continuous nocturnal doses of 15-mg mirtazapine , 25-mg trazodone, or placebo for 8 days in a double-blinded, three-way crossover trial. Subjects were asked to perform three driving tasks (road tracking, car following, and harsh braking) using a driving simulator and cognitive tasks (the Wisconsin Card Sorting Test, Continuous Performance Test, and N-back Test) at baseline and on Days 2 and 9. Stanford Sleepiness Scale scores were also assessed. RESULTS Mirtazapine significantly increased the standard deviation of lateral position in the road-tracking task as compared with trazodone on Day 2. Mirtazapine significantly increased Stanford Sleepiness Scale scores as compared with trazodone and placebo. For the remaining tasks, no significant effects of treatment were observed. CONCLUSIONS Acute treatment of mirtazapine impaired road-tracking performance and increased sleepiness, but sedative effects disappeared under repeated administrations. Trazodone did not affect driving performance or cognitive function under acute or repeated administrations. Both initial sedative effects and pharmacological profiles should be taken into consideration when using sedative antidepressants.
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Affiliation(s)
- Kazumi Sasada
- Department of Psychiatry, Graduate School of Medicine, Nagoya University, Nagoya, Aichi, Japan
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Miyata S, Noda A, Iwamoto K, Kawano N, Okuda M, Ozaki N. Poor sleep quality impairs cognitive performance in older adults. J Sleep Res 2013; 22:535-41. [PMID: 23560612 DOI: 10.1111/jsr.12054] [Citation(s) in RCA: 91] [Impact Index Per Article: 8.3] [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: 08/17/2012] [Accepted: 01/10/2013] [Indexed: 11/28/2022]
Abstract
The prevalence of insomnia increases with age. Short sleep duration is associated with deficits in cognitive performance. We hypothesized that short sleep duration and sleep quality influence cognitive performance in older adults. The study included 78 adults aged 60 years and over (72.2 ± 5.9 years). Total sleep time and sleep efficiency (total sleep time/time in bed × 100) were calculated using actigraphy. We evaluated cognitive performance with the continuous performance test-identical pairs and the number-back test. Sleep apnea was evaluated overnight with a portable home monitoring system. The accuracy of the 0-back test significantly decreased in participants with total sleep time less than 5 h compared with those with total sleep time greater than 7 h, but there was no significant difference in continuous performance test-identical pairs between the two groups. Participants with sleep efficiency <85% showed a significant decrease in 0- and 1-back test accuracy compared with those with sleep efficiency ≥85%. There were no significant differences in the accuracy of number-back tests and continuous performance test-identical pairs between apnea-hypopnea index ≥15 h(-1) and apnea-hypopnea index <15 h(-1) groups, or among lowest SpO2 ≥ 90%, lowest 80-90%, and lowest SpO2 < 80% groups. Age, total sleep time and sleep efficiency were significantly correlated with accuracy on the 0-back test. Age and sleep efficiency were significantly correlated with accuracy on the 1-back test. Multiple regression analysis revealed that total sleep time was independently correlated with accuracy on the 0-back test, while age was independently correlated with accuracy on the 1-back test. Our findings suggest that sleep duration and sleep quality may play a role in cognitive performance in older adults.
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Affiliation(s)
- Seiko Miyata
- Department of Biomedical Sciences, Chubu University, Kasugai, Japan
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Kawano N, Yamaguchi K, Niki T, Yamamoto T, Iwase T, Taketani Y, Ise T, Yamada H, Soeki T, Wakatsuki T, Kawano K, Kakutani A, Sata M. Two cases of acute myocardial infarction during combined chemotherapy in young patients with testicular cancer. J Cardiol Cases 2013; 7:e176-e180. [PMID: 30533157 DOI: 10.1016/j.jccase.2013.02.009] [Citation(s) in RCA: 2] [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] [Subscribe] [Scholar Register] [Received: 01/21/2013] [Revised: 02/12/2013] [Accepted: 02/20/2013] [Indexed: 10/27/2022] Open
Abstract
The two patients were males aged over 30 years. To treat testicular tumors, combination chemotherapy with bleomycin, etoposide, and cisplatin (BEP) had been employed. In case 1, during the 4th course of BEP therapy, thoracic pain suddenly appeared. Emergency coronary angiography revealed thrombus formation. Under a diagnosis of thrombus-related acute myocardial infarction, thrombus aspiration was conducted, and stent implantation was performed because mild stenosis and residual thrombus were observed. In case 2, during the 2nd course of BEP therapy, thoracic pain suddenly appeared. Emergency coronary angiography revealed thrombus formation. Intracoronary infusion of pro-urokinase was performed, and additional balloon dilatation was conducted because mild stenosis and residual thrombus were observed. In both cases, the courses were favorable, and the levels of coagulation markers on admission were high. When selecting combination chemotherapy in patients with coronary risk factors, such as obesity and smoking, despite a young age, as demonstrated in these two patients, it may be important to consider combination therapy with anticoagulants or switching to anticancer drugs that do not show vascular toxicity. <Learning objective: When performing combination chemotherapy with bleomycin, etoposide, and cisplatin in young patients with coronary risk factors such as obesity and smoking, it may be important to examine combination therapy with anticoagulants or switching to anticancer drugs that do not show vascular toxicity, considering the possibility of cardiovascular disease onset, including acute myocardial infarction.>.
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Affiliation(s)
- Naoko Kawano
- The Post-Graduate Education Center, Tokushima University Hospital, Tokushima, Japan
| | - Koji Yamaguchi
- Department of Cardiovascular Medicine, Institute of Health Biosciences, The University of Tokushima Graduate School, 2-50-1 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Toshiyuki Niki
- Department of Cardiovascular Medicine, Institute of Health Biosciences, The University of Tokushima Graduate School, 2-50-1 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Takashi Yamamoto
- Department of Internal Medicine, Tokushima Kouseiren Oe Kyodo Hospital, Yoshinogawa, Japan
| | - Takashi Iwase
- Department of Cardiovascular Medicine, Institute of Health Biosciences, The University of Tokushima Graduate School, 2-50-1 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Yoshio Taketani
- Department of Cardiovascular Medicine, Institute of Health Biosciences, The University of Tokushima Graduate School, 2-50-1 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Takayuki Ise
- Department of Cardiovascular Medicine, Institute of Health Biosciences, The University of Tokushima Graduate School, 2-50-1 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Hirotsugu Yamada
- Department of Cardiovascular Medicine, Institute of Health Biosciences, The University of Tokushima Graduate School, 2-50-1 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Takeshi Soeki
- Department of Cardiovascular Medicine, Institute of Health Biosciences, The University of Tokushima Graduate School, 2-50-1 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Tetsuzo Wakatsuki
- Department of Cardiovascular Medicine, Institute of Health Biosciences, The University of Tokushima Graduate School, 2-50-1 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Kazuhiro Kawano
- Department of Internal Medicine, Tokushima Kouseiren Oe Kyodo Hospital, Yoshinogawa, Japan
| | - Akiyoshi Kakutani
- Department of Internal Medicine, Tokushima Kouseiren Oe Kyodo Hospital, Yoshinogawa, Japan
| | - Masataka Sata
- Department of Cardiovascular Medicine, Institute of Health Biosciences, The University of Tokushima Graduate School, 2-50-1 Kuramoto-cho, Tokushima 770-8503, Japan
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Kohmura K, Iwamoto K, Aleksic B, Sasada K, Kawano N, Katayama H, Noda Y, Noda A, Iidaka T, Ozaki N. Effects of sedative antidepressants on prefrontal cortex activity during verbal fluency task in healthy subjects: a near-infrared spectroscopy study. Psychopharmacology (Berl) 2013; 226:75-81. [PMID: 23052571 DOI: 10.1007/s00213-012-2885-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2012] [Accepted: 09/15/2012] [Indexed: 11/29/2022]
Abstract
RATIONALE Japanese researchers have recently conducted studies using near-infrared spectroscopy (NIRS) to help diagnose psychiatric disorders based on changes in brain activity. However, the influence of psychotropic drugs on NIRS measurements has not been clarified. OBJECTIVE To assess the effects of sedative antidepressants on prefrontal cortex activity in healthy subjects using NIRS in a double-blinded, placebo-controlled, crossover trial. METHODS Nineteen healthy males received nocturnal doses of mirtazapine 15 mg, trazodone 25 mg, or placebo for eight consecutive days in rotation, with a washout period of more than 1 week between each rotation. Subjects performed a verbal fluency task during NIRS on a total of seven occasions during the study period: more than a week prior to receiving the first dose of the first medication; and on days 2 and 9 of each rotation. The number of words correctly generated during the task (behavioral performance) was also recorded. Stanford Sleepiness Scale (SSS) scores were determined each day. RESULTS Mirtazapine 15 mg significantly increased oxyhemoglobin (oxy-Hb) concentration change in NIRS on day 9, compared to trazodone 25 mg and placebo. Mirtazapine 15 mg significantly increased SSS on day 2, compared to the other conditions. No significant differences in behavioral performance were observed. CONCLUSIONS Administration of mirtazapine for eight consecutive days affected oxy-Hb changes on NIRS. This result indicates that researchers should consider how certain types of antidepressant could influence brain function when the brain activity of patients with psychiatric disorders is assessed.
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Affiliation(s)
- Kunihiro Kohmura
- Department of Psychiatry, Graduate School of Medicine, Nagoya University, 65 Tsurumai, Showa, Nagoya, Aichi, Japan
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Kawano N, Awata S, Ijuin M, Iwamoto K, Ozaki N. Necessity of normative data on the Japanese version of the Wechsler Memory Scale-Revised Logical Memory subtest for old-old people. Geriatr Gerontol Int 2012; 13:726-30. [PMID: 23279764 DOI: 10.1111/ggi.12007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/16/2012] [Indexed: 11/30/2022]
Abstract
AIM Episodic memory is vulnerable to deterioration in people suffering from Alzheimer's disease. Currently, the Logical Memory (LM) subtest of the Wechsler Memory Scale-Revised (WMS-R) is used internationally as an operational definition to identify people with mild cognitive impairment (MCI). However, the Japanese version of the LM has not been adequately normalized for old-old people. Therefore, norms of the LM for people aged 75 years and over are required, and the effects of sex, age and education on performance were evaluated. METHODS A total of 50 (27 female and 23 male) participants without a history of dementia and symptomatic stroke events recruited from the community and hospital populations were investigated using the Mini-Mental State Examination, the LM and some interference tasks. RESULTS The mean scores (standard deviations) of the sample were 15.5 (5.4) on LM-I and 9.9 (6.6) on LM-II. The distributions of the LM-I and -II scores satisfied the normality assumption. The LM-I and LM-II scores correlated with age and the LM-I score correlated with educational background. CONCLUSIONS For the Japanese version of the LM, the means, standard deviations and distribution features of the old-old sample are presented. Although the normal sample was chosen to closely match the demographic profile of the Japanese population, the present sample might have had a higher educational background than the age-matched population, especially the males. Further study is required to standardize the Japanese version of the LM subtest for each 5-year interval for latter-stage elderly people.
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Affiliation(s)
- Naoko Kawano
- Research Team for Promoting Independence of the Elderly, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan.
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Chuman H, Kawano N, Kozawa M, Nao-I N. Vasodilatory effects of antivascular endothelium growth factor (VEGF) antibody, corticosteroid, and nitric oxide on the posterior ciliary arteries. Jpn J Ophthalmol 2012; 57:320-6. [PMID: 22961343 DOI: 10.1007/s10384-012-0179-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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: 01/30/2012] [Accepted: 07/09/2012] [Indexed: 11/26/2022]
Abstract
PURPOSE The purpose of this study was to determine whether an antivascular endothelium growth factor (VEGF) antibody, a corticosteroid, and sodium nitroprusside (SNP) [a nitric oxide (NO) donor] are possible treatment agents for nonarteritic ischemic optic neuropathy (NAION) by clarifying their effects on high-K (potassium) solution-induced contraction in isolated rabbit and human posterior ciliary arteries (PCA). METHODS Vascular ring segments were cut from the distal section of the PCA and mounted in a double-myograph system. After obtaining the maximal contraction following the administration of high-K solution, bevacizumab as an anti-VEGF antibody, methylprednisolone as a corticosteroid, and SNP were administered separately. When a vasodilatory effect was observed, carboxy-PTIO (a NO scavenger) or L-NAME (a NO synthase inhibitor) was administered. RESULTS Bevacizumab did not relax either the rabbit or the human PCA, whereas methylprednisolone relaxed both. Neither carboxy-PTIO nor L-NAME inhibited methylprednisolone-induced relaxation. SNP relaxed the rabbit PCA. Carboxy-PTIO inhibited SNP-induced relaxation, but L-NAME did not. In the human PCA, the vasodilatory effect of SNP was present, but weaker than in the rabbit PCA. CONCLUSIONS A corticosteroid has NO-independent vasodilatory effects. Exogenous NO has a weak dilating effect in the human PCA. Therefore, corticosteroid could be effective for the treatment of NAION.
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Affiliation(s)
- Hideki Chuman
- Department of Ophthalmology, Faculty of Medicine, University of Miyazaki, 5200 Kihara Kiyotake, Miyazaki, Miyazaki 889-1692, Japan.
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Kawano N, Iwamoto K, Ebe K, Suzuki Y, Hasegawa J, Ukai K, Umegaki H, Iidaka T, Ozaki N. Effects of Mild Cognitive Impairment on Driving Performance in Older Drivers. J Am Geriatr Soc 2012; 60:1379-81. [DOI: 10.1111/j.1532-5415.2012.04021.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Kunihiro Iwamoto
- Department of Psychiatry; Graduate School of Medicine; Nagoya University; Nagoya; Japan
| | | | - Yusuke Suzuki
- Department of Community Healthcare and Geriatrics; Graduate School of Medicine; Nagoya University; Nagoya; Japan
| | - Jun Hasegawa
- Department of Community Healthcare and Geriatrics; Graduate School of Medicine; Nagoya University; Nagoya; Japan
| | | | - Hiroyuki Umegaki
- Department of Community Healthcare and Geriatrics; Graduate School of Medicine; Nagoya University; Nagoya; Japan
| | - Tetsuya Iidaka
- Department of Psychiatry; Graduate School of Medicine; Nagoya University; Nagoya; Japan
| | - Norio Ozaki
- Department of Psychiatry; Graduate School of Medicine; Nagoya University; Nagoya; Japan
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Kawano N, Iwamoto K, Ebe K, Aleksic B, Noda A, Umegaki H, Kuzuya M, Iidaka T, Ozaki N. Slower adaptation to driving simulator and simulator sickness in older adults. Aging Clin Exp Res 2012; 24:285-9. [PMID: 23114558 DOI: 10.1007/bf03325260] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
BACKGROUND AND AIMS Methods of assessing driving abilities in the elderly are urgently needed. Although the driving simulator (DS) appears to be a safe and cost-effective method of objectively evaluating driving performance, it may pose adaptation problems for elderly adults. In this study, we examined age-related adaptation deficits on the DS. METHODS Healthy young adults (n=15) and healthy elderly persons (n=17) completed some neuropsychological tests, and then performed a road-tracking task with the DS, which was repeated four times (Trials 1-4). RESULTS After simulated driving in DS, simulator sickness (SS) was observed in 18.8% of participants. The frequency of SS was 29.4% in elderly adults and 6.7% in young adults, and 17.6% of the elderly participants dropped out of the experiment. Performance on the Necker cube copying task was significantly correlated with the onset of SS. Driving performance also showed a significant interaction between group and trial, for both driving accuracy and vehicle speed. In addition, the performance of elderly adults significantly improved between trials 1 and 4, reaching a plateau in trial 4, whereas that of young adults did not change across trials. CONCLUSION This study provides preliminary evidence of slower adaptation to a DS-based driving task by older adults, which was associated with cognitive aging. Age affected driving accuracy and velocity when a road-tracking task was simply repeated. It is concluded that the capacity of elderly people to adapt to DS environments should be taken into consideration when evaluating their performance on DS tasks.
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Koide T, Banno M, Aleksic B, Yamashita S, Kikuchi T, Kohmura K, Adachi Y, Kawano N, Kushima I, Nakamura Y, Okada T, Ikeda M, Ohi K, Yasuda Y, Hashimoto R, Inada T, Ujike H, Iidaka T, Suzuki M, Takeda M, Iwata N, Ozaki N. Common variants in MAGI2 gene are associated with increased risk for cognitive impairment in schizophrenic patients. PLoS One 2012; 7:e36836. [PMID: 22649501 PMCID: PMC3359314 DOI: 10.1371/journal.pone.0036836] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2011] [Accepted: 04/07/2012] [Indexed: 11/18/2022] Open
Abstract
Schizophrenia is a complex psychiatric disorder characterized by positive symptoms, negative symptoms, and cognitive impairment. MAGI2, a relatively large gene (∼1.5 Mbps) that maps to chromosome 7q21, is involved in recruitment of neurotransmitter receptors such as AMPA- and NMDA-type glutamate receptors. A genetic association study designed to evaluate the association between MAGI2 and cognitive performance or schizophrenia has not been conducted. In this case-control study, we examined the relationship of single nucleotide polymorphism (SNP) variations in MAGI2 and risk for schizophrenia in a large Japanese sample and explored the potential relationships between variations in MAGI2 and aspects of human cognitive function related to glutamate activity. Based on the result of first schizophrenia genome-wide association study in a Japanese population (JGWAS), we selected four independent SNPs and performed an association study using a large independent Japanese sample set (cases 1624, controls 1621). Wisconsin Card Sorting Test (WCST) was used to evaluate executive function in 114 cases and 91 controls. We found suggestive evidence for genetic association of common SNPs within MAGI2 locus and schizophrenia in Japanese population. Furthermore in terms of association between MAGI2 and cognitive performance, we observed that genotype effect of rs2190665 on WCST score was significant (p = 0.034) and rs4729938 trended toward significance (p = 0.08). In conclusion, although we could not detect strong genetic evidence for association of common variants in MAGI2 and increased schizophrenia risk in a Japanese population, these SNPs may increase risk of cognitive impairment in schizophrenic patients.
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Affiliation(s)
- Takayoshi Koide
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
- CREST, Japan Science and Technology Agency, Tokyo, Japan
| | - Masahiro Banno
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
- CREST, Japan Science and Technology Agency, Tokyo, Japan
| | - Branko Aleksic
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
- CREST, Japan Science and Technology Agency, Tokyo, Japan
- * E-mail:
| | - Saori Yamashita
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
- CREST, Japan Science and Technology Agency, Tokyo, Japan
| | - Tsutomu Kikuchi
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
- CREST, Japan Science and Technology Agency, Tokyo, Japan
| | - Kunihiro Kohmura
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
- CREST, Japan Science and Technology Agency, Tokyo, Japan
| | - Yasunori Adachi
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
- CREST, Japan Science and Technology Agency, Tokyo, Japan
| | - Naoko Kawano
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
- CREST, Japan Science and Technology Agency, Tokyo, Japan
| | - Itaru Kushima
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
- CREST, Japan Science and Technology Agency, Tokyo, Japan
| | - Yukako Nakamura
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
- CREST, Japan Science and Technology Agency, Tokyo, Japan
| | - Takashi Okada
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
- CREST, Japan Science and Technology Agency, Tokyo, Japan
| | - Masashi Ikeda
- Department of Psychiatry, Fujita Health University School of Medicine, Toyoake, Japan
| | - Kazutaka Ohi
- Department of Psychiatry, Osaka University Graduate School of Medicine, Osaka, Japan
- CREST, Japan Science and Technology Agency, Tokyo, Japan
| | - Yuka Yasuda
- Department of Psychiatry, Osaka University Graduate School of Medicine, Osaka, Japan
- CREST, Japan Science and Technology Agency, Tokyo, Japan
| | - Ryota Hashimoto
- 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, Kanazawa University, and Hamamatsu University Graduate School of Medicine, Osaka, Japan
- CREST, Japan Science and Technology Agency, Tokyo, Japan
| | - Toshiya Inada
- Department of Psychiatry, Seiwa Hospital, Institute of Neuropsychiatry, Tokyo, Japan
| | - Hiroshi Ujike
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine and Dentistry, Okayama, Japan
| | - Tetsuya Iidaka
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
- CREST, Japan Science and Technology Agency, Tokyo, Japan
| | - Michio Suzuki
- Department of Neuropsychiatry, University of Toyama Graduate School of Medicine and Pharmaceutical Sciences, Toyama, Japan
| | - Masatoshi Takeda
- 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, Kanazawa University, and Hamamatsu University Graduate School of Medicine, Osaka, Japan
| | - Nakao Iwata
- Department of Psychiatry, Fujita Health University School of Medicine, Toyoake, Japan
- CREST, Japan Science and Technology Agency, Tokyo, Japan
| | - Norio Ozaki
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
- CREST, Japan Science and Technology Agency, Tokyo, Japan
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Tamaji A, Iwamoto K, Kawamura Y, Takahashi M, Ebe K, Kawano N, Kunimoto S, Aleksic B, Noda Y, Ozaki N. Differential effects of diazepam, tandospirone, and paroxetine on plasma brain-derived neurotrophic factor level under mental stress. Hum Psychopharmacol 2012; 27:329-33. [PMID: 22344744 DOI: 10.1002/hup.2220] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [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] [Received: 11/16/2011] [Accepted: 01/26/2012] [Indexed: 11/10/2022]
Abstract
OBJECTIVES Serum brain-derived neurotrophic factor (BDNF) levels are reduced in depressed patients, and successful antidepressant treatment leads to increases in BDNF levels. However, little is known about how psychotropic drugs affect the mechanism of the human response to mental stress. We investigated the influence of psychotropic drugs on plasma BDNF levels under mental stress using a driving simulator (DS) task. METHODS Fourteen healthy male volunteers received one of four drugs, diazepam (5 mg), tandospirone (20 mg), paroxetine (10 mg), and matched placebo, in a double-blind, crossover manner. Subjects were asked to perform the DS task 4 h post-dosing. Plasma BDNF levels were measured before and after the DS task. RESULTS Plasma BDNF levels under the placebo, diazepam, and tandospirone conditions significantly decreased after the DS task compared with before the task. Conversely, no significant differences in plasma BDNF levels were detected under the paroxetine condition. CONCLUSION As these three psychotropic drugs have differential effects on plasma BDNF levels under mental stress after 4 h post-dosing, antidepressants, unlike anxiolytics, might have a prompt positive effect on the mental stress response.
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Affiliation(s)
- Ai Tamaji
- Department of Psychiatry, Graduate School of Medicine, Nagoya University, 65 Tsurumai-cho, Nagoya, Aichi, Japan
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Abstract
To determine whether Ki-67 (MIB-1) and p53 have prognostic value in ependymomas, clinicopathologic study was undertaken in 29 patients with this tumor. The clinical course correlated well with the histological grade according to the World Health Organization (WHO) grading system, and it was the worst in patients with anaplastic ependymoma. The percent expression of MIB-1 and p53 correlated with the histological grade of malignancy. With regard to the subtypes of benign ependymoma, the clinical course was the worst in clear-cell ependymoma, which had a significantly higher expression of MIB-1 and p53 than the other subtypes. Tanycytic ependymoma showed the most benign clinical course and the lowest expression of MIB-1 and p53. Although the WHO grading generally tended to correlate with the clinical course of ependymomas, these two subtypes--clear-cell ependymoma and tanycytic ependymoma--exhibited biological properties different from those of other grade II ependymomas.
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Affiliation(s)
- S Suzuki
- Department of Neurosurgery, Kitasato University School of Medicine, Kanagawa, Japan
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Banno M, Koide T, Aleksic B, Okada T, Kikuchi T, Kohmura K, Adachi Y, Kawano N, Iidaka T, Ozaki N. Wisconsin Card Sorting Test scores and clinical and sociodemographic correlates in Schizophrenia: multiple logistic regression analysis. BMJ Open 2012; 2:bmjopen-2012-001340. [PMID: 23135537 PMCID: PMC3533115 DOI: 10.1136/bmjopen-2012-001340] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [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] [Indexed: 11/03/2022] Open
Abstract
OBJECTIVES This study investigated what clinical and sociodemographic factors affected Wisconsin Card Sorting Test (WCST) factor scores of patients with schizophrenia to evaluate parameters or items of the WCST. DESIGN Cross-sectional study. SETTING Patients with schizophrenia from three hospitals participated. PARTICIPANTS Participants were recruited from July 2009 to August 2011. 131 Japanese patients with schizophrenia (84 men and 47 women, 43.5±13.8 years (mean±SD)) entered and completed the study. Participants were recruited in the study if they (1) met DSM-IV criteria for schizophrenia; (2) were physically healthy and (3) had no mood disorders, substance abuse, neurodevelopmental disorders, epilepsy or mental retardation. We examined their basic clinical and sociodemographic factors (sex, age, education years, age of onset, duration of illness, chlorpromazine equivalent doses and the positive and negative syndrome scale (PANSS) scores). PRIMARY AND SECONDARY OUTCOME MEASURES All patients carried out the WCST Keio version. Five indicators were calculated, including categories achieved (CA), perseverative errors in Milner (PEM) and Nelson (PEN), total errors (TE) and difficulties of maintaining set (DMS). From the principal component analysis, we identified two factors (1 and 2). We assessed the relationship between these factor scores and clinical and sociodemographic factors, using multiple logistic regression analysis. RESULTS Factor 1 was mainly composed of CA, PEM, PEN and TE. Factor 2 was mainly composed of DMS. The factor 1 score was affected by age, education years and the PANSS negative scale score. The factor 2 score was affected by duration of illness. CONCLUSIONS Age, education years, PANSS negative scale score and duration of illness affected WCST factor scores in patients with schizophrenia. Using WCST factor scores may reduce the possibility of type I errors due to multiple comparisons.
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Affiliation(s)
- Masahiro Banno
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi-ken, Japan
| | - Takayoshi Koide
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi-ken, Japan
| | - Branko Aleksic
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi-ken, Japan
| | - Takashi Okada
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi-ken, Japan
| | - Tsutomu Kikuchi
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi-ken, Japan
- Department of Psychiatry, Matsuzaki Hospital, Toyohashi, Aichi-ken, Japan
| | - Kunihiro Kohmura
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi-ken, Japan
| | - Yasunori Adachi
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi-ken, Japan
| | - Naoko Kawano
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi-ken, Japan
| | - Tetsuya Iidaka
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi-ken, Japan
| | - Norio Ozaki
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi-ken, Japan
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Kawano N, Konno T, Suzuki Y, Kawai M, Takada T, Setoyama H, Ikemura H, Ueki Y. The Effect of Fermented Milk on Constipation-prone Individuals Classified According to the Stress Level. ACTA ACUST UNITED AC 2012. [DOI: 10.5264/eiyogakuzashi.70.3] [Citation(s) in RCA: 2] [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: 11/09/2022]
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