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Morikawa M. Compliance costs and productivity: an approach from working hours. J Regul Econ 2023; 63:1-21. [PMID: 37363073 PMCID: PMC10239538 DOI: 10.1007/s11149-023-09460-3] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/23/2023] [Indexed: 06/28/2023]
Abstract
This study proposes a new approach of measuring compliance costs of rules and regulations by focusing on labor input, and estimates the compliance costs in Japan based on a survey of workers. According to the results, the working hours required to comply with rules and regulations account for more than 20% of total labor input. By industry, this cost is higher in the finance and insurance industry followed by the health and welfare industry, and by firm size, it is higher in large firms. If these costs were halved, overall economic productivity would increase by about 8%.
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Affiliation(s)
- Masayuki Morikawa
- Hitotsubashi University, 2-1 Naka, Kunitachi, Tokyo, 186-8603 Japan
- Research Institute of Economy, Trade and Industry (RIETI), 1-3-1 Kasumigaseki, Chiyoda-Ku, Tokyo, 100-8901 Japan
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2
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Ishizuka R, Otaki N, Tai Y, Yamagami Y, Tanaka K, Morikawa M, Iki M, Kurumatani N, Saeki K, Obayashi K. Breakfast Skipping and Declines in Cognitive Score Among Community-Dwelling Older Adults: A Longitudinal Study of the HEIJO-KYO Cohort. J Geriatr Psychiatry Neurol 2022:8919887221135551. [PMID: 36265459 DOI: 10.1177/08919887221135551] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Previous studies outlined the correlation of adverse effects of breakfast skipping with cognitive function. However, the majority of these studies have focused on the short-term effects; to date, the long-term effect of breakfast skipping on cognitive function among older adults remains unclear. In this prospective cohort study of 712 older adults (mean age, 70.8 years), breakfast skipping was defined as skipping breakfast one or more times per week, and declines in cognitive score was defined as decreases in Mini-Mental State Examination (MMSE) score of two or more in the observed period. During follow-up (median, 31 months), 135 of 712 participants developed declines in cognitive score. Poisson regression models revealed that the incidence rate for declines in cognitive score was significantly higher in breakfast skipper (n = 29) than breakfast eaters (n = 683) [incidence rate ratio (IRR), 2.10; 95% CI, 1.28-3.44]. Additional propensity score adjustments related to breakfast skipping from baseline parameters (age, gender, smoking and drinking status, BMI, household income, educated level, depressive symptoms, hypertension, diabetes, sleep medication, physical activity, caloric intake, and baseline cognition) produced consistent results (IRR, 2.21; 95% CI, 1.33-3.68). Sensitivity analysis, when the cut-off value of decreases in MMSE score was changed to three points, suggested a significant and stronger association (IRR, 3.03; 95% CI, 1.72-5.35). Regarding daily intakes of food groups, breakfast skippers consumed a significantly lower amount of vegetables, fruits, and fish than breakfast eaters. In conclusion, our findings suggest that breakfast skipping is longitudinally associated with declines in cognitive score among older adults.
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Affiliation(s)
- Rika Ishizuka
- Department of Epidemiology, Nara Medical University School of Medicine, Nara, Japan
| | - Naoto Otaki
- Department of Food Sciences and Nutrition, Mukogawa Women's University, Hyogo, Japan
| | - Yoshiaki Tai
- Department of Epidemiology, Nara Medical University School of Medicine, Nara, Japan
| | - Yuki Yamagami
- Department of Epidemiology, Nara Medical University School of Medicine, Nara, Japan
| | - Kunihiko Tanaka
- Department of Physiology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Masayuki Morikawa
- Department of Psychiatry, Mie Prefectural Mental Care Center, Mie, Japan
| | - Masayuki Iki
- Department of Public Health, Kindai University Faculty of Medicine, Osaka, Japan
| | - Norio Kurumatani
- Department of Epidemiology, Nara Medical University School of Medicine, Nara, Japan
| | - Keigo Saeki
- Department of Epidemiology, Nara Medical University School of Medicine, Nara, Japan
| | - Kenji Obayashi
- Department of Epidemiology, Nara Medical University School of Medicine, Nara, Japan
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Iwasa M, Eguchi A, Tamai Y, Shigefuku R, Nakagawa R, Hasegawa H, Kondo J, Morikawa M, Miyoshi E, Nakagawa H. Elevation of enterococcus-specific antibodies associated with bacterial translocation is predictive of survival rate in chronic liver disease. Front Med (Lausanne) 2022; 9:982128. [PMID: 36035413 PMCID: PMC9403143 DOI: 10.3389/fmed.2022.982128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 07/26/2022] [Indexed: 11/13/2022] Open
Abstract
Introduction/purposeThe gut-liver axis contributes to disease progression, a rise in infection rate, organ failure and a poor overall outcome in chronic liver diseases (CLD). Monitoring of the gut-liver axis is critical in understanding disease status, but biomarkers have not been elucidated. The aim of this study is to determine the level of serum antibodies against Enterococcus (E.) faecalis in evaluating patients with CLD, including those treated with rifaximin (a minimally absorbed antibiotic), and in patients with alcohol-associated liver disease (ALD).Materials and methodsWe enrolled 109 CLD patients (cohort 1), 30 hepatic encephalopathy patients treated with rifaximin (cohort 2), 53 inpatients with ALD undergoing alcohol cessation (cohort 3) and 33 healthy subjects. To assess the consequences of E. faecalis translocation, we developed an assay for the detection of a serum antibody against E. faecalis capsular polysaccharide (E.CPS).ResultsSerum E.CPS antibody titer was elevated only in those patients with advanced CLD and ALD. The E.CPS antibody titer was an independent prognostic factor (p < 0.05), while Mac-2 binding protein and albumin-bilirubin score were not independent predictors of survival. The improvement of predictive model in integrated factors was significant [continuous net reclassification index (value 0.699, p < 0.05) and integrated discrimination improvement (value 0.164, p = 0.051)]. Furthermore, rifaximin treatment led to a decrease of serum E.CPS antibody titer resulting in a significantly longer overall rate of survival.ConclusionThe E.CPS antibody titer appears to be a strong predictor of survival in CLD patients. Serum E.CPS levels decrease in CLD patients receiving rifaximin, and may be associated with an overall improvement in rate of survival.
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Affiliation(s)
- Motoh Iwasa
- Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Akiko Eguchi
- Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Tsu, Japan
- *Correspondence: Akiko Eguchi,
| | - Yasuyuki Tamai
- Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Ryuta Shigefuku
- Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Tsu, Japan
| | | | - Hiroshi Hasegawa
- Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Jumpei Kondo
- Department of Molecular Biochemistry and Clinical Investigation, Osaka University Graduate School of Medicine, Osaka, Japan
| | | | - Eiji Miyoshi
- Department of Molecular Biochemistry and Clinical Investigation, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Hayato Nakagawa
- Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Tsu, Japan
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Morikawa M. Work-from-home productivity during the COVID-19 pandemic: Evidence from Japan. Econ Inq 2022; 60:508-527. [PMID: 35440832 PMCID: PMC9011721 DOI: 10.1111/ecin.13056] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 10/29/2021] [Indexed: 05/22/2023]
Abstract
This study examines the productivity of working from home (WFH) practices during the COVID-19 pandemic. The results reveal that the mean WFH productivity relative to working at the usual workplace was about 60%-70%, and it was lower for employees and firms that started WFH practice only after the spread of the COVID-19 pandemic. However, there was a large dispersion of WFH productivity, both by individual and firm characteristics. Highly educated and high-wage employees tended to exhibit a small reduction in WFH productivity. The results obtained from the employee and employer surveys were generally consistent with each other.
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Affiliation(s)
- Masayuki Morikawa
- Hitotsubashi UniversityKunitachiTokyoJapan
- Research Institute of Economy, Trade and Industry (RIETI)Chiyoda‐kuTokyoJapan
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Kawada T, Kino K, Tokorodani K, Anabuki R, Morikawa M, Kobayashi T, Ohara K, Ohshima T, Miyazawa H. Analysis of nucleotide insertion opposite urea and translesion synthesis across urea by DNA polymerases. Genes Environ 2022; 44:7. [PMID: 35168664 PMCID: PMC8845263 DOI: 10.1186/s41021-022-00236-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 02/01/2022] [Indexed: 11/10/2022] Open
Abstract
Abstract Urea (Ua) is produced in DNA as the result of oxidative damage to thymine and guanine. It was previously reported that Klenow fragment (Kf) exo− incorporated dATP opposite Ua, and that DNA polymerase β was blocked by Ua. We report here the following nucleotide incorporations opposite Ua by various DNA polymerases: DNA polymerase α, dATP and dGTP (dATP > dGTP); DNA polymerase δ, dATP; DNA polymerase ζ, dATP; Kf exo−, dATP; Sulfolobus solfataricus P2 DNA polymerase IV (Dpo4), dGTP and dATP (dGTP > dATP); and DNA polymerase η, dCTP, dGTP, dATP, and dTTP (dCTP > dGTP > dATP > dTTP). DNA polymerases β and ε were blocked by Ua. Elongation by DNA polymerases δ and ζ stopped after inserting dATP opposite Ua. Importantly, the elongation efficiency to full-length beyond Ua using DNA polymerase η and Dpo4 were almost the same as that of natural DNA. Graphical abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s41021-022-00236-3.
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Affiliation(s)
- Taishu Kawada
- Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University, 1314-1 Shido, Sanuki, Kagawa, 769-2193, Japan
| | - Katsuhito Kino
- Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University, 1314-1 Shido, Sanuki, Kagawa, 769-2193, Japan.
| | - Kyousuke Tokorodani
- Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University, 1314-1 Shido, Sanuki, Kagawa, 769-2193, Japan
| | - Ryuto Anabuki
- Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University, 1314-1 Shido, Sanuki, Kagawa, 769-2193, Japan
| | - Masayuki Morikawa
- Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University, 1314-1 Shido, Sanuki, Kagawa, 769-2193, Japan
| | - Takanobu Kobayashi
- Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University, 1314-1 Shido, Sanuki, Kagawa, 769-2193, Japan
| | - Kazuaki Ohara
- Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University, 1314-1 Shido, Sanuki, Kagawa, 769-2193, Japan
| | - Takayuki Ohshima
- Faculty of Science and Engineering, Tokushima Bunri University, 1314-1 Shido, Sanuki, Kagawa, 769-2193, Japan
| | - Hiroshi Miyazawa
- Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University, 1314-1 Shido, Sanuki, Kagawa, 769-2193, Japan
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6
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Urabe F, Kimura T, Sasaki H, Iwatani K, Aikawa K, Tashiro K, Tsutsumi Y, Morikawa M, Sato S, Takahashi H, Aoki M, Miki K, Egawa S. Comparison between long-term outcomes of low-dose-rate brachytherapy and radical prostatectomy in patients with intermediate-risk prostate cancer: Propensity match scoring analysis. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)01031-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Chiba I, Lee S, Bae S, Makino K, Katayama O, Harada K, Tomida K, Morikawa M, Yamashiro Y, Takayanagi N, Shimada H. Association of Daily Physical Activity with Disability in Community-Dwelling Older Adults With/Without Chronic Kidney Disease. J Nutr Health Aging 2022; 26:521-528. [PMID: 35587766 DOI: 10.1007/s12603-022-1790-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
OBJECTIVES Physical activity is recommended for disability prevention in the older adult population; however, the level of physical activity required for older adults with chronic kidney disease (CKD) remains unknown. This study aimed to examine the associations between daily physical activity and disability incidence in older adults with and without CKD to determine relevant daily physical activity levels. DESIGN Prospective observational study. SETTING AND PARTICIPANTS 3,786 community-dwelling older adults aged ≥65 years. MEASUREMENTS Mean daily times spent in light- (LPA) and moderate-to-vigorous physical activity (MVPA) were measured using triaxial accelerometers. CKD was defined by a creatinine estimated glomerular filtration rate (eGFR) <60 mL/min/1.73 m2. Disability incidence was identified as long-term care insurance certification during a 60-month follow-up period. Associations between physical activity and disability incidence were examined using Cox proportional hazard models stratified by the CKD status. Non-linear and linear associations were tested using the restricted cubic spline. RESULTS A total of 1,054 individuals were identified to have CKD. Disability incidence was higher in the CKD group than in the non-CKD group. The adjusted cox proportional hazard models indicated that a 10-minute increase in MVPA time was associated with lower disability incidence in the non-CKD group (hazard ratio [HR], 0.838; 95% confidence interval [CI]: 0.764-0.918) and the CKD group (HR, 0.859; 95% CI: 0.766-0.960). Linear associations were observed in MVPA for the non-CKD and CKD groups. CONCLUSION Increasing MVPA was associated with lower disability incidence in older adults with and without CKD. These findings can help devise disability prevention strategies for older CKD patients.
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Affiliation(s)
- I Chiba
- Ippei Chiba, Department of Preventive Gerontology, Centre for Gerontology and Social Science, National Centre for Geriatrics and Gerontology, 7-430, Morioka-cho, Obu, City, Aichi 474-8511, Japan, E-mail: ; Tel.: +81-562-44-5651
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Katayama O, Lee S, Bae S, Makino K, Chiba I, Harada K, Morikawa M, Tomida K, Shimada H. Association between Non-Face-to-Face Interactions and Incident Disability in Older Adults. J Nutr Health Aging 2022; 26:147-152. [PMID: 35166306 PMCID: PMC8783584 DOI: 10.1007/s12603-022-1728-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 11/25/2021] [Indexed: 11/29/2022]
Abstract
OBJECTIVES This observational prospective cohort study, conducted between September 2015 and February 2019, aimed to investigate the association between the incidence of disability and non-face-to-face interactions among community-dwelling older adults in Japan. DESIGN Participants reported their interaction status using a self-report questionnaire. Face-to-face interactions comprised in-person meetings, while virtual interactions (e.g., via phone calls or emails) were defined as non-face-to-face interactions. We examined the relationship between their interaction status at baseline and the risk of disability incidence at follow-up. We also considered several potential confounding variables, such as demographic characteristics. SETTING The National Center for Geriatrics and Gerontology-Study of Geriatric Syndromes. PARTICIPANTS We included 1159 adults from Takahama City aged ≥75 years (mean age ± standard deviation = 79.5 ± 3.6 years). MEASUREMENTS Interaction status was assessed using a self-reported questionnaire consisting of two sections (face-to-face and non-face-to-face interactions), and four questionnaire items. Based on the responses we categorized study participants into four groups: "both interactions," "face-to-face only," "non-face-to-face only," and "no interactions." RESULTS Individuals with both kinds of interactions (49.3/1000 person-years) or only one kind of interaction (face-to-face = 57.7/1000 person-years; non-face-to-face = 41.2 person-years) had lower incidence of disability than those with no interactions (88.9/1000 person-years). Moreover, the hazard ratios adjusted for potential confounding factors for the incidence of disability in the both interaction, face-to-face-only, and non-face-to-face only groups were 0.57 (confidence interval = 0.39-0.82; p = 0.003), 0.66 (confidence interval = 0.44-0.98; p = 0.038), and 0.47 (confidence interval = 0.22-0.99; p = 0.048), respectively. CONCLUSION Considering the interaction status of older adults in their day-to-day practice, clinicians may be able to achieve better outcomes in the primary prevention of disease by encouraging older adults to engage in any form of interaction, including non-face-to-face interactions.
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Affiliation(s)
- O Katayama
- Osamu Katayama, National Center for Geriatrics and Gerontology, Obu City, Aichi Japan,
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9
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Suzuki T, Eguchi A, Shigefuku R, Nagao S, Morikawa M, Sugimoto K, Iwasa M, Takei Y. Accuracy of carbohydrate-deficient transferrin as a biomarker of chronic alcohol abuse during treatment for alcoholism. Hepatol Res 2022; 52:120-127. [PMID: 33797850 DOI: 10.1111/hepr.13642] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 02/26/2021] [Accepted: 03/21/2021] [Indexed: 12/12/2022]
Abstract
AIM Clinical evaluations are generally used to verify the effectiveness of detoxification treatments for alcohol dependence, but new objective biomarkers are essential for accurate diagnosis. We aim to assess the accuracy of carbohydrate-deficient transferrin (%CDT) in a cohort of Japanese patients admitted to a psychiatric hospital specializing in alcohol dependence. In addition, we investigated the kinetics of %CDT during alcohol moderation or cessation. METHODS The study cohort consisted of 126 alcohol-dependent patients. The levels of serum %CDT were assessed by the N Latex CDT direct immunonephelometric assay. RESULTS Alcohol consumption was significantly correlated with %CDT. The only independent predictive factor of alcohol consumption was %CDT, with glutamyltranspeptidase (GGT) and albumin-bilirubin score proving insufficient. The cut-off value of %CDT was 1.9% with high sensitivity and specificity in detecting alcohol abstinence beyond 30 days (68.6% sensitivity, 91.8% specificity) and excessive alcohol drinking (77.9% sensitivity, 77.1% specificity). The %CDT levels were significantly decreased at 30 days of abstinence when compared with baseline. Notably, %CDT values were significantly changed even in the light alcohol drinking cohort (p = 0.0009), whereas GGT levels were not significantly changed. CONCLUSIONS Our results indicate that %CDT is an accurate and specific biomarker of alcohol consumption and is useful in detecting alcohol abstinence even in a low alcohol intake patient cohort. These results suggest that %CDT could be a useful objective biomarker of chronic alcohol abuse during clinical treatment for alcoholism.
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Affiliation(s)
- Tatsuya Suzuki
- Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Tsu, Japan.,Department of Gastroenterology and Hepatology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Akiko Eguchi
- Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Ryuta Shigefuku
- Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Tsu, Japan
| | | | | | - Kazushi Sugimoto
- Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Motoh Iwasa
- Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Yoshiyuki Takei
- Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Tsu, Japan
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Morikawa M. Productivity of firms using relief policies during the COVID-19 crisis. Econ Lett 2021; 203:109869. [PMID: 36540306 PMCID: PMC9754782 DOI: 10.1016/j.econlet.2021.109869] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 04/13/2021] [Accepted: 04/15/2021] [Indexed: 05/11/2023]
Abstract
This study, based on an original survey of Japanese firms, analyzes the productivity of firms that used relief policy measures during the COVID-19 pandemic. The productivity of firms using these relief measures was lower than that of non-user firms prior to the pandemic, suggesting that inefficient firms have been affected seriously. The result cautions against the excessive and prolonged relief policies.
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Affiliation(s)
- Masayuki Morikawa
- Hitotsubashi University, 2-1 Naka, Kunitachi, Tokyo 186-8603, Japan
- Research Institute of Economy, Trade and Industry (RIETI), 1-3-1 Kasumigaseki, Chiyoda-ku, Tokyo 100-8901, Japan
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11
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Hirono Y, Katayama K, Tsubaki T, Morikawa M, Goi T. Clinical impact of preoperative serum cholinesterase in colorectal cancer. Clin Nutr ESPEN 2020. [DOI: 10.1016/j.clnesp.2020.09.491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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12
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Komatsu M, Obayashi K, Tomioka K, Morikawa M, Jojima N, Okamoto N, Kurumatani N, Saeki K. The interaction effect between physical and cultural leisure activities on the subsequent decline of instrumental ADL: the Fujiwara-kyo study. Environ Health Prev Med 2019; 24:71. [PMID: 31787072 PMCID: PMC6886184 DOI: 10.1186/s12199-019-0826-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 10/22/2019] [Indexed: 02/07/2023] Open
Abstract
Background Maintenance of instrumental activities of daily living (IADL) and social role (SR) is crucial to keep independent life because the decline in SR and IADL was a significant predictor of dependence in basic ADL in later. The independent effect of physical and cultural leisure activities and their effect modification on the IADL remains unknown. Methods We prospectively observed 3241 elderly with intact IADL at baseline for 5 years. Higher level functional capacity such as IADL and SR was assessed using the Tokyo Metropolitan Institute of Gerontology Index of competence (TMIG index). Results The mean age of the participants was 72.3 years (standard deviation 5.1), and 46.9% were male, and 90.9% of them received a follow-up assessment. Of the participants, 10.4% developed an IADL decline. Engagement in leisure physical activity was associated with a significantly lower risk of IADL decline (adjusted risk ratio, 0.73; 95% confidence interval [CI], 0.60 to 0.89), and cultural leisure activity was also associated with lower risk of IADL decline (adjusted risk ratio, 0.77; 95% CI, 0.63 to 0.95) independent of potential confounders. We also found significant and positive interaction between physical and cultural leisure activities at risk for IADL decline (P = 0.024) and SR decline (P = 0.004). Conclusions We found an independent association of physical and cultural leisure activities with a lower risk for functional decline in IADL and SR with positive interaction. Combined engagement in physical and cultural activities may effectively prevent from IADL decline and SR decline.
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Affiliation(s)
- Masayo Komatsu
- Department of Epidemiology, Nara Medical University School of Medicine, 840 Shijocho, Kashiharashi, Nara, 634-8521, Japan.,Department of Public Health Nursing, Nara Medical University School of Medicine, Nara, Japan
| | - Kenji Obayashi
- Department of Epidemiology, Nara Medical University School of Medicine, 840 Shijocho, Kashiharashi, Nara, 634-8521, Japan
| | - Kimiko Tomioka
- Nara Prefectural Health Research Center, Nara Medical University School of Medicine, Nara, Japan
| | | | - Noriko Jojima
- Department of Public Health Nursing, Nara Medical University School of Medicine, Nara, Japan
| | - Nozomi Okamoto
- Department of School Psychology, Development Science & Health Education, Hyogo University of Teacher Education, Hyogo, Japan
| | - Norio Kurumatani
- Department of Epidemiology, Nara Medical University School of Medicine, 840 Shijocho, Kashiharashi, Nara, 634-8521, Japan
| | - Keigo Saeki
- Department of Epidemiology, Nara Medical University School of Medicine, 840 Shijocho, Kashiharashi, Nara, 634-8521, Japan.
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Sugawara E, Kato M, Fujieda Y, Oku K, Bohgaki T, Yasuda S, Umazume T, Morikawa M, Watari H, Atsumi T. Pregnancy outcomes in women with rheumatic diseases: a real-world observational study in Japan. Lupus 2019; 28:1407-1416. [PMID: 31551035 DOI: 10.1177/0961203319877258] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [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: 12/14/2022]
Abstract
OBJECTIVES We aimed to evaluate the obstetric complications and the risk factors for these events in pregnant women with rheumatic diseases (RDs). METHODS A single-center retrospective study of women with RDs at Hokkaido University Hospital between 2007 and 2016 was conducted. Clinical features and maternal and fetal outcomes were retrospectively collected. The rate of pregnancy complications was compared with the general obstetric population (GOP) in Japan. RESULTS Overall, 132 pregnancies in 95 women with RDs were recorded. Underlying RDs were systemic erythematosus (SLE) (n = 57), antiphospholipid syndrome (APS) (n = 35), rheumatoid arthritis (n = 9), and other RDs (n = 31). Antiphospholipid antibodies (aPL) were detected in 44 pregnancies (32%). Glucocorticoid was used in 82 pregnancies (62%), and tacrolimus in 20 pregnancies (15%). There were 24 disease flares (18%), but no RD-related death was documented. We recorded 112 live births, 6 abortions, 8 miscarriages, and 6 stillbirths. Pregnancies with RDs appeared to have frequent, emergency cesarean sections and preterm deliveries compared with GOP (30% vs 15% and 21% vs 14%, respectively). The median [interquartile range] birthweight in SLE and APS was lower than GOP (2591 [2231-2958] g and 2600 [2276-2920] g vs 2950 [2650-3250] g, respectively). In pregnancies with SLE, low complement levels presented the risk of maternal complications (odds ratio [95% CI]; 3.9 [1.0-14.9], p = 0.046) and anti-DNA antibody positivity was significantly correlated with the risk of fetal complications (3.5 [1.1-11.2], p = 0.036). In pregnancies with APS, maternal age over 35 years and duration of disease longer than 9 years (7.4 [1.3-40.8], p = 0.021, and 11.16 [1.1-118.8], p = 0.046, respectively) were significantly correlated with the risk of fetal complications. CONCLUSION Pregnancies with RDs were at increased risk of having both maternal complications and adverse neonatal outcomes, indicating these pregnancies should be closely monitored.
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Affiliation(s)
- E Sugawara
- Department of Rheumatology, Endocrinology and Nephrology, Hokkaido University Faculty and Graduate School of Medicine, Sapporo, Japan
| | - M Kato
- Department of Rheumatology, Endocrinology and Nephrology, Hokkaido University Faculty and Graduate School of Medicine, Sapporo, Japan
| | - Y Fujieda
- Department of Rheumatology, Endocrinology and Nephrology, Hokkaido University Faculty and Graduate School of Medicine, Sapporo, Japan
| | - K Oku
- Department of Rheumatology, Endocrinology and Nephrology, Hokkaido University Faculty and Graduate School of Medicine, Sapporo, Japan
| | - T Bohgaki
- Department of Rheumatology, Endocrinology and Nephrology, Hokkaido University Faculty and Graduate School of Medicine, Sapporo, Japan
| | - S Yasuda
- Department of Rheumatology, Endocrinology and Nephrology, Hokkaido University Faculty and Graduate School of Medicine, Sapporo, Japan
| | - T Umazume
- Department of Obstetrics and Gynecology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - M Morikawa
- Department of Obstetrics and Gynecology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - H Watari
- Department of Obstetrics and Gynecology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - T Atsumi
- Department of Rheumatology, Endocrinology and Nephrology, Hokkaido University Faculty and Graduate School of Medicine, Sapporo, Japan
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14
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Chiba A, Kudo T, Ideguchi R, Altay M, Koga S, Yonekura T, Tsuneto A, Morikawa M, Ikeda S, Kawano H, Koide Y, Uetani M, Maemura K. P386Comparison of whether a beginner can be close to an expert with an artificial neural network in myocardial perfusion imaging. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez149.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- A Chiba
- Nagasaki University Hospital, Cardiovascular Medicine, Nagasaki, Japan
| | - T Kudo
- Nagasaki University, Radioisotope Medicine, Nagasaki, Japan
| | - R Ideguchi
- Nagasaki University, Radioisotope Medicine, Nagasaki, Japan
| | - M Altay
- Nagasaki University, Radioisotope Medicine, Nagasaki, Japan
| | - S Koga
- Nagasaki University Hospital, Cardiovascular Medicine, Nagasaki, Japan
| | - T Yonekura
- Nagasaki University Hospital, Cardiovascular Medicine, Nagasaki, Japan
| | - A Tsuneto
- Nagasaki University Hospital, Cardiovascular Medicine, Nagasaki, Japan
| | - M Morikawa
- Nagasaki University Hospital, Radiological Sciences, Nagasaki, Japan
| | - S Ikeda
- Nagasaki University Hospital, Cardiovascular Medicine, Nagasaki, Japan
| | - H Kawano
- Nagasaki University Hospital, Cardiovascular Medicine, Nagasaki, Japan
| | - Y Koide
- Nagasaki Memorial Hospital, Nagasaki Medical Education Center, Nagasaki, Japan
| | - M Uetani
- Nagasaki University Hospital, Radiological Sciences, Nagasaki, Japan
| | - K Maemura
- Nagasaki University Hospital, Cardiovascular Medicine, Nagasaki, Japan
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15
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Fujishima T, Komatsu T, Takao Y, Yonamine W, Suenaga T, Isono H, Morikawa M, Takaguchi K. Design and concise synthesis of novel vitamin D analogues bearing a functionalized aromatic ring on the side chain. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.01.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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16
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Okamoto N, Morikawa M, Amano N, Yanagi M, Takasawa S, Kurumatani N. Effects of Tooth Loss and the Apolipoprotein E ɛ4 Allele on Mild Memory Impairment in the Fujiwara-kyo Study of Japan: A Nested Case-Control Study. J Alzheimers Dis 2018; 55:575-583. [PMID: 27716671 PMCID: PMC5147497 DOI: 10.3233/jad-160638] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Background: Several studies have suggested that periodontal disease can exacerbate the pro-inflammatory status of the brain. Tooth loss is one of the alternative evaluation indices of periodontal disease. There are few data on the relationship between tooth loss and memory impairment, depending on the apolipoprotein E (APOE) ɛ4 genotype. Objective: To determine if tooth loss is associated with mild memory impairment (MMI) and if this association is modified by the presence of the APOEɛ4 allele. Methods: A nested case-control study was conducted from 2007 to 2012 in Japan. Five hundred and thirty-seven Japanese subjects aged 65 years and over who were cognitively intact at baseline were analyzed. MMI at follow-up was evaluated. Results: The median number of teeth at baseline was significantly lower in MMI participants (n = 179) than in controls (n = 358) (MMI: median 21.0, interquartile range 10.0–25.0 versus controls: 24.0, 14.0–27.0). After adjustment for demographics, vascular risk factors, and APOEɛ4 allele, the multivariate adjusted odds ratio (OR) of ≤8 teeth was 1.97 (95% confidence interval [CI], 1.13–3.44) compared to 25–32 teeth. Participants with both the presence of at least 1 APOEɛ4 allele and ≤8 teeth had a higher risk of MMI compared with those with neither (OR, 2.82; 95% CI, 1.15–6.91). Those with either risk factor alone did not have a higher risk of MMI. Conclusions: A lower number of teeth is related to risk of MMI. This may be primarily true for those individuals with an APOEɛ4 allele.
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Affiliation(s)
- Nozomi Okamoto
- Department of Community Health and Epidemiology, Nara Medical University, Nara, Japan
| | - Masayuki Morikawa
- Mie Prefectural Mental Medical Center, Mie, Japan.,Department of Psychiatry, Nara Medical University, Nara, Japan
| | | | - Motokazu Yanagi
- Department of Food and Nutrition, Tezukayama University, Nara, Japan
| | - Shin Takasawa
- Department of Biochemistry, Nara Medical University, Nara, Japan
| | - Norio Kurumatani
- Department of Community Health and Epidemiology, Nara Medical University, Nara, Japan
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17
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Miyata K, Yoshikawa T, Morikawa M, Mine M, Okamoto N, Kurumatani N, Ogata N. Effect of cataract surgery on cognitive function in elderly: Results of Fujiwara-kyo Eye Study. PLoS One 2018; 13:e0192677. [PMID: 29462175 PMCID: PMC5819799 DOI: 10.1371/journal.pone.0192677] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 01/29/2018] [Indexed: 12/20/2022] Open
Abstract
Purpose To determine whether there is a significant association between prior cataract surgery and cognitive function in an elderly Japanese cohort. Setting Nara Medical University, Nara, Japan. Design The Fujiwara-kyo Eye Study was a cross-sectional epidemiological study. Methods The subjects were ≥ 68-years who lived in the Nara Prefecture and responded to recruitment notices. All of the subjects received comprehensive ophthalmological examinations, and answered questionnaires on their socio-demographic and medical history including prior cataract surgery. The association between prior cataract surgery and cognitive function was determined. Results A total of the 2764 subjects whose mean age was 76.3±4.8 years (±standard deviation) was studied. Of these, 668 individuals (24.2%) had undergone cataract surgery. Of these, 150 (5.4%) had dementia as determined by the Mini-Mental State Examination (MMSE) score ≤23, and 877 individuals (31.7%) had mild cognitive impairment (MCI; MMSE score 24–26). The subjects who had prior cataract surgery had significantly lower odds ratio (OR) of having MCI (OR = 0.78, 95% confidence interval; CI 0.64–0.96, P = 0.019) than those who had not had cataract surgery after adjusting for age, sex, body mass index, education, hypertension, diabetes, depression, and history of stroke. The OR was still lower when the visual acuity was also added to the adjusted factors (OR 0.79, 95% CI 0.64–0.97, P = 0.025). However, prior cataract surgery did not contribute significantly to the low OR for dementia. Conclusions Cataract surgery may play a role in reducing the risk of developing MCI independently of visual acuity but not for dementia.
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Affiliation(s)
- Kimie Miyata
- Department of Ophthalmology, Nara Medical University, Kashihara, Nara, Japan
| | - Tadanobu Yoshikawa
- Department of Ophthalmology, Nara Medical University, Kashihara, Nara, Japan
| | | | - Masashi Mine
- Department of Ophthalmology, Nara Medical University, Kashihara, Nara, Japan
| | - Nozomi Okamoto
- Department of Community Health and Epidemiology, Nara Medical University, Kashihara, Nara, Japan
| | - Norio Kurumatani
- Department of Community Health and Epidemiology, Nara Medical University, Kashihara, Nara, Japan
| | - Nahoko Ogata
- Department of Ophthalmology, Nara Medical University, Kashihara, Nara, Japan
- * E-mail:
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18
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Luepongpattana S, Thaniyavarn J, Morikawa M. Production of massoia lactone by
Aureobasidium pullulans
YTP6‐14 isolated from the Gulf of Thailand and its fragrant biosurfactant properties. J Appl Microbiol 2017; 123:1488-1497. [DOI: 10.1111/jam.13598] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 08/31/2017] [Accepted: 09/04/2017] [Indexed: 11/30/2022]
Affiliation(s)
- S. Luepongpattana
- Department of Microbiology Faculty of Science Chulalongkorn University Bangkok Thailand
| | - J. Thaniyavarn
- Department of Microbiology Faculty of Science Chulalongkorn University Bangkok Thailand
| | - M. Morikawa
- Graduate School of Environmental Science Hokkaido University Sapporo Japan
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19
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Morikawa M, Kuwahara M, Kusunoki S. Detection of antibodies to glycolipids and glycolipid complexes in immune-mediated neuropathies using glycoarray. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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20
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Toyama T, Kuroda M, Ogata Y, Hachiya Y, Quach A, Tokura K, Tanaka Y, Mori K, Morikawa M, Ike M. Enhanced biomass production of duckweeds by inoculating a plant growth-promoting bacterium, Acinetobacter calcoaceticus P23, in sterile medium and non-sterile environmental waters. Water Sci Technol 2017; 76:1418-1428. [PMID: 28953468 DOI: 10.2166/wst.2017.296] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Duckweed offers the promise of a co-benefit culture combining water purification with biomass production. Acinetobacter calcoaceticus P23 is a plant growth-promoting bacterium isolated from a duckweed, Lemna aequinoctialis. This study quantified its growth-promoting effect on three duckweeds (L. aoukikusa, L. minor, and Spirodela polyrhiza) in sterile Hoagland solution and evaluated its usefulness in duckweed culture under non-sterile conditions. P23 promoted growth of three duckweeds in sterile Hoagland solution at low to high nutrient concentrations (1.25-10 mg NO3-N/L and 0.25-2.0 mg PO4-P/L). It increased the biomass production of L. aequinoctialis 3.8-4.3-fold, of L. minor 2.3-3.3-fold, and of S. polyrhiza 1.4-1.5-fold after 7 days compared with noninoculated controls. P23 also increased the biomass production of L. minor 2.4-fold in pond water and 1.7-fold in secondary effluent of a sewage treatment plant under non-sterile conditions at laboratory-scale experiments. P23 rescued L. minor from growth inhibition caused by microorganisms indigenous to the pond water. The results demonstrate that the use of P23 in duckweed culture can improve the efficiency of duckweed biomass production, and a positive effect of P23 on duckweed-based wastewater treatment can be assumed.
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Affiliation(s)
- T Toyama
- Graduate Faculty of Interdisciplinary Research, University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan E-mail:
| | - M Kuroda
- Division of Sustainable Energy and Environmental Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Y Ogata
- National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan
| | - Y Hachiya
- Division of Sustainable Energy and Environmental Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - A Quach
- Division of Sustainable Energy and Environmental Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - K Tokura
- Division of Sustainable Energy and Environmental Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Y Tanaka
- Graduate Faculty of Interdisciplinary Research, University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan E-mail:
| | - K Mori
- Graduate Faculty of Interdisciplinary Research, University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan E-mail:
| | - M Morikawa
- Division of Biosphere Science, Graduate School of Environmental Science, Hokkaido University, Kita-10 Nishi-5, Kita-ku, Sapporo 060-0810, Japan
| | - M Ike
- Division of Sustainable Energy and Environmental Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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21
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Kimura H, Fujita Y, Kawabata T, Ishizuka K, Wang C, Iwayama Y, Okahisa Y, Kushima I, Morikawa M, Uno Y, Okada T, Ikeda M, Inada T, Branko A, Mori D, Yoshikawa T, Iwata N, Nakamura H, Yamashita T, Ozaki N. A novel rare variant R292H in RTN4R affects growth cone formation and possibly contributes to schizophrenia susceptibility. Transl Psychiatry 2017; 7:e1214. [PMID: 28892071 PMCID: PMC5611737 DOI: 10.1038/tp.2017.170] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Revised: 05/20/2017] [Accepted: 06/17/2017] [Indexed: 02/03/2023] Open
Abstract
Reticulon 4 receptor (RTN4R) plays an essential role in regulating axonal regeneration and plasticity in the central nervous system through the activation of rho kinase, and is located within chromosome 22q11.2, a region that is known to be a hotspot for schizophrenia (SCZ) and autism spectrum disorder (ASD). Recently, rare variants such as copy-number variants and single-nucleotide variants have been a focus of research because of their large effect size associated with increased susceptibility to SCZ and ASD and the possibility of elucidating the pathophysiology of mental disorder through functional analysis of the discovered rare variants. To discover rare variants with large effect size and to evaluate their role in the etiopathophysiology of SCZ and ASD, we sequenced the RTN4R coding exons with a sample comprising 370 SCZ and 192 ASD patients, and association analysis using a large number of unrelated individuals (1716 SCZ, 382 ASD and 4009 controls). Through this mutation screening, we discovered four rare (minor allele frequency <1%) missense mutations (R68H, D259N, R292H and V363M) of RTN4R. Among these discovered rare mutations, R292H was found to be significantly associated with SCZ (P=0.048). Furthermore, in vitro functional assays showed that the R292H mutation affected the formation of growth cones. This study strengthens the evidence for association between rare variants within RTN4R and SCZ, and may shed light on the molecular mechanisms underlying the neurodevelopmental disorder.
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Affiliation(s)
- H Kimura
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Y Fujita
- Department of Molecular Neuroscience, Osaka University Graduate School of Medicine, Osaka, Japan
| | - T Kawabata
- Laboratory of Protein Informatics Institute for Protein Research, Osaka University Graduate School of Medicine, Osaka, Japan
| | - K Ishizuka
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - C Wang
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Y Iwayama
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Wako, Saitama, Japan
| | - Y Okahisa
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - I Kushima
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - M Morikawa
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Y Uno
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan,Laboratory for Psychiatric and Molecular Neuroscience, McLean Hospital, Belmont, MA, USA
| | - T Okada
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - M Ikeda
- Department of Psychiatry, Fujita Health University School of Medicine, Toyoake, Aichi, Japan
| | - T Inada
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - A Branko
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan,Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan. E-mail:
| | - D Mori
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - T Yoshikawa
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Wako, Saitama, Japan
| | - N Iwata
- Department of Psychiatry, Fujita Health University School of Medicine, Toyoake, Aichi, Japan
| | - H Nakamura
- Laboratory of Protein Informatics Institute for Protein Research, Osaka University Graduate School of Medicine, Osaka, Japan
| | - T Yamashita
- Department of Molecular Neuroscience, Osaka University Graduate School of Medicine, Osaka, Japan
| | - N Ozaki
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
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22
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Kushima I, Aleksic B, Nakatochi M, Shimamura T, Shiino T, Yoshimi A, Kimura H, Takasaki Y, Wang C, Xing J, Ishizuka K, Oya-Ito T, Nakamura Y, Arioka Y, Maeda T, Yamamoto M, Yoshida M, Noma H, Hamada S, Morikawa M, Uno Y, Okada T, Iidaka T, Iritani S, Yamamoto T, Miyashita M, Kobori A, Arai M, Itokawa M, Cheng MC, Chuang YA, Chen CH, Suzuki M, Takahashi T, Hashimoto R, Yamamori H, Yasuda Y, Watanabe Y, Nunokawa A, Someya T, Ikeda M, Toyota T, Yoshikawa T, Numata S, Ohmori T, Kunimoto S, Mori D, Iwata N, Ozaki N. High-resolution copy number variation analysis of schizophrenia in Japan. Mol Psychiatry 2017; 22:430-440. [PMID: 27240532 DOI: 10.1038/mp.2016.88] [Citation(s) in RCA: 93] [Impact Index Per Article: 13.3] [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: 09/20/2015] [Revised: 04/18/2016] [Accepted: 04/20/2016] [Indexed: 12/30/2022]
Abstract
Recent schizophrenia (SCZ) studies have reported an increased burden of de novo copy number variants (CNVs) and identified specific high-risk CNVs, although with variable phenotype expressivity. However, the pathogenesis of SCZ has not been fully elucidated. Using array comparative genomic hybridization, we performed a high-resolution genome-wide CNV analysis on a mainly (92%) Japanese population (1699 SCZ cases and 824 controls) and identified 7066 rare CNVs, 70.0% of which were small (<100 kb). Clinically significant CNVs were significantly more frequent in cases than in controls (odds ratio=3.04, P=9.3 × 10-9, 9.0% of cases). We confirmed a significant association of X-chromosome aneuploidies with SCZ and identified 11 de novo CNVs (e.g., MBD5 deletion) in cases. In patients with clinically significant CNVs, 41.7% had a history of congenital/developmental phenotypes, and the rate of treatment resistance was significantly higher (odds ratio=2.79, P=0.0036). We found more severe clinical manifestations in patients with two clinically significant CNVs. Gene set analysis replicated previous findings (e.g., synapse, calcium signaling) and identified novel biological pathways including oxidative stress response, genomic integrity, kinase and small GTPase signaling. Furthermore, involvement of multiple SCZ candidate genes and biological pathways in the pathogenesis of SCZ was suggested in established SCZ-associated CNV loci. Our study shows the high genetic heterogeneity of SCZ and its clinical features and raises the possibility that genomic instability is involved in its pathogenesis, which may be related to the increased burden of de novo CNVs and variable expressivity of CNVs.
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Affiliation(s)
- I Kushima
- Institute for Advanced Research, Nagoya University, Nagoya, Japan.,Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - B Aleksic
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - M Nakatochi
- Bioinformatics Section, Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya, Japan
| | - T Shimamura
- Division of Systems Biology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - T Shiino
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - A Yoshimi
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - H Kimura
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Y Takasaki
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - C Wang
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - J Xing
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - K Ishizuka
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - T Oya-Ito
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Y Nakamura
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Y Arioka
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya, Japan
| | - T Maeda
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - M Yamamoto
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - M Yoshida
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - H Noma
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - S Hamada
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - M Morikawa
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Y Uno
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - T Okada
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - T Iidaka
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - S Iritani
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - T Yamamoto
- Department of Legal Medicine and Bioethics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - M Miyashita
- Department of Psychiatry and Behavioral Sciences, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - A Kobori
- Department of Psychiatry and Behavioral Sciences, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - M Arai
- Department of Psychiatry and Behavioral Sciences, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - M Itokawa
- Center for Medical Cooperation, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - M-C Cheng
- Department of Psychiatry, Yuli Mental Health Research Center, Yuli Branch, Taipei Veterans General Hospital, Hualien, Taiwan
| | - Y-A Chuang
- Department of Psychiatry, Yuli Mental Health Research Center, Yuli Branch, Taipei Veterans General Hospital, Hualien, Taiwan
| | - C-H Chen
- Department of Psychiatry, Chang Gung Memorial Hospital-Linkou, Taoyuan, Taiwan.,Department and Graduate Institute of Biomedical Sciences, Chang Gung University, Taoyuan, Taiwan
| | - M Suzuki
- Department of Neuropsychiatry, University of Toyama Graduate School of Medicine and Pharmaceutical Sciences, Toyama, Japan
| | - T Takahashi
- Department of Neuropsychiatry, University of Toyama Graduate School of Medicine and Pharmaceutical Sciences, Toyama, Japan
| | - R Hashimoto
- Molecular Research Center for Children's Mental Development, United Graduate School of Child Development, Osaka University, Suita, Japan.,Department of Psychiatry, Osaka University Graduate School of Medicine, Suita, Japan
| | - H Yamamori
- Department of Psychiatry, Osaka University Graduate School of Medicine, Suita, Japan
| | - Y Yasuda
- Department of Psychiatry, Osaka University Graduate School of Medicine, Suita, Japan
| | - Y Watanabe
- Department of Psychiatry, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - A Nunokawa
- Department of Psychiatry, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - T Someya
- Department of Psychiatry, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - M Ikeda
- Department of Psychiatry, Fujita Health University School of Medicine, Toyoake, Japan
| | - T Toyota
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Wako, Japan
| | - T Yoshikawa
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Wako, Japan
| | - S Numata
- Department of Psychiatry, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - T Ohmori
- Department of Psychiatry, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - S Kunimoto
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - D Mori
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Brain and Mind Research Center, Nagoya University, Nagoya, Japan
| | - N Iwata
- Department of Psychiatry, Fujita Health University School of Medicine, Toyoake, Japan
| | - N Ozaki
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
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23
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Fujimoto D, Goi T, Kurebayashi H, Kato S, Morikawa M, Koneri K, Murakami M, Hirono Y. 252P Expression of Ribophorine II (RPN2) is a new prognostic factor in human gastric adenocarcinoma. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw582.033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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24
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Mine M, Miyata K, Morikawa M, Nishi T, Okamoto N, Kawasaki R, Yamashita H, Kurumatani N, Ogata N. Association of Visual Acuity and Cognitive Impairment in Older Individuals: Fujiwara-kyo Eye Study. Biores Open Access 2016; 5:228-34. [PMID: 27610269 PMCID: PMC5003003 DOI: 10.1089/biores.2016.0023] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Both visual impairment and cognitive impairment are essential factors that determine the quality of life in the aged population. The aim of this study was to determine if a correlation existed between visual acuity and cognitive impairment in an elderly Japanese population. The Fujiwara-kyo Eye Study was a cross-sectional study of individuals aged ≥68 years who lived in Nara Prefecture of Japan. Participants underwent ophthalmological examinations and cognitive function test. A mild visual impairment was defined as having a best corrected visual acuity (BCVA) >0.2 logarithm of the minimum angle of resolution (logMAR) units in the better eye. Cognitive impairment was defined as having a Mini-Mental State Examination (MMSE) score of ≤23 points. A total to 2818 individuals completed the examinations. The mean age of the participants was 76.3 ± 4.8 years (mean ± standard deviation). The mean BCVA of the better eye was −0.02 ± 0.13 logMAR units and 6.6% subjects were classified as being mildly visually impaired. The mean MMSE score was 27.3 ± 2.3 and 5.7% subjects were classified as being cognitively impaired. The proportion of subjects with cognitive or moderate visual impairment increased with age, and there was a significant correlation between the visual acuity and MMSE score (r = −0.10, p < 0.0001). Subjects with mild visual impairments had 2.4 times higher odds of having cognitive impairment than those without visual impairment (odds ratio 2.4, 95% confidence interval, 1.5–3.8, p < 0.001) after adjusting for age, sex, and length of education. We conclude that it may be important to maintain good visual acuity to reduce the risk of having cognitive impairment.
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Affiliation(s)
- Masashi Mine
- Department of Ophthalmology, Nara Medical University , Kashihara, Nara, Japan
| | - Kimie Miyata
- Department of Ophthalmology, Nara Medical University , Kashihara, Nara, Japan
| | | | - Tomo Nishi
- Department of Ophthalmology, Nara Medical University , Kashihara, Nara, Japan
| | - Nozomi Okamoto
- Department of Community Health and Epidemiology, Nara Medical University , Kashihara, Nara, Japan
| | - Ryo Kawasaki
- Department of Public Health, Graduate School of Medical Science, Yamagata University , Yamagata, Japan
| | - Hidetoshi Yamashita
- Department of Ophthalmology and Visual Science, Yamagata University Faculty of Medicine , Yamagata, Japan
| | - Norio Kurumatani
- Department of Community Health and Epidemiology, Nara Medical University , Kashihara, Nara, Japan
| | - Nahoko Ogata
- Department of Ophthalmology, Nara Medical University , Kashihara, Nara, Japan
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Taoka T, Yasuno F, Morikawa M, Inoue M, Kiuchi K, Kitamura S, Matsuoka K, Kishimoto T, Kichikawa K, Naganawa S. Diffusion tensor studies and voxel-based morphometry of the temporal lobe to determine the cognitive prognosis in cases of Alzheimer's disease and mild cognitive impairment: Do white matter changes precede gray matter changes? Springerplus 2016; 5:1023. [PMID: 27441142 PMCID: PMC4938813 DOI: 10.1186/s40064-016-2692-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Accepted: 06/24/2016] [Indexed: 01/18/2023]
Abstract
PURPOSE The purpose of the current study was to assess the feasibility of diffusion tensor imaging (DTI) parameters for determining the prognosis of Alzheimer's disease (AD). We also analyzed the correlation among DTI, voxel-based morphometry (VBM), and results of the mini-mental state examination (MMSE). METHODS The subjects of this prospective study were patients with AD and mild cognitive impairment. We performed annual follow-ups with DTI, VBM, and MMSE for 2 or 3 years. On DTI, the apparent diffusion coefficient (ADC) and fractional anisotropy (FA) of the uncinate fascicles were measured. VBM was performed to provide a z-score for the parahippocampal gyrus. The correlations among these factors were evaluated in the same period and the next period of the follow-up study. RESULTS For evaluation of the same period, both DTI parameters and z-scores showed statistically significant correlations with the MMSE score. Also for evaluation of the next period, both DTI parameters and z-scores showed statistically significant correlations with the MMSE score of the next period. We observed a statistically significant correlation between the ADC value of the uncinate fascicles and the z-score of the next period. CONCLUSIONS Diffusion tensor parameters (ADC and FA) of the uncinate fascicles correlated well with cognitive function in the next year and seemed to be feasible for use as biomarkers for predicting the progression of AD. In addition, the white matter changes observed in the ADC seemed to precede changes in the gray matter volume of the parahippocampal gyrus that were represented by z-scores of VBM.
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Affiliation(s)
- Toshiaki Taoka
- Department of Radiology, Nagoya University Hospital, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550 Japan
| | - Fumihiko Yasuno
- Department of Psychiatry, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8522 Japan
| | - Masayuki Morikawa
- Department of Psychiatry, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8522 Japan
| | - Makoto Inoue
- Department of Psychiatry, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8522 Japan
| | - Kuniaki Kiuchi
- Department of Psychiatry, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8522 Japan
| | - Soichiro Kitamura
- Department of Psychiatry, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8522 Japan
| | - Kiwamu Matsuoka
- Department of Psychiatry, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8522 Japan
| | - Toshifumi Kishimoto
- Department of Psychiatry, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8522 Japan
| | - Kimihiko Kichikawa
- Department of Radiology, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8522 Japan
| | - Shinji Naganawa
- Department of Radiology, Nagoya University Hospital, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550 Japan
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Nakamura M, Hara Y, Nagashima T, Morikawa M, Minami H, Tamaki N. Transvenous Embolizations of Venous Compartments of Dural Arteriovenous Fistulas within Venous Sinus Walls. Interv Neuroradiol 2016; 3 Suppl 2:97-100. [DOI: 10.1177/15910199970030s219] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/1997] [Accepted: 09/18/1997] [Indexed: 11/15/2022] Open
Abstract
Transvenous embolization of venous compartments within the venous sinus wall was the method initially attempted for closing dural arteriovenous fistulas in 15 patients (22 sinuses). The venous channel, separate from the sinus lumen and located in the venous sinus wall, could be embolized in 6 lesions (3 patients), including 3 superior sagittal sinus fistulas, 2 transverse sinus fistulas, and 1 straight sinus fistula. This technique resulted in closure of the fistulas and preservation of sinus patency as well as immediate improvement of clinical symptoms. The embolizable venous compartment of the fistula within the venous sinus wall could be detected by preoperative angiography, magnetic resonance imaging, and intraoperative venography. This unique drainage of dural arteriovenous fistulas may develop concurrently with more obvious portions of the fistula. Transvenous embolization of these venous compartments can close the fistulas and normalize impaired sinus function.
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Affiliation(s)
- M. Nakamura
- Department of Neurosurgery, Kobe University School of Medicine; Kobe, Japan
| | - Y. Hara
- Department of Neurosurgery, Kobe University School of Medicine; Kobe, Japan
| | - T. Nagashima
- Department of Neurosurgery, Kobe University School of Medicine; Kobe, Japan
| | - M. Morikawa
- Department of Neurosurgery, Kobe University School of Medicine; Kobe, Japan
| | - H. Minami
- Department of Neurosurgery, Kobe University School of Medicine; Kobe, Japan
| | - N. Tamaki
- Department of Neurosurgery, Kobe University School of Medicine; Kobe, Japan
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27
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Umazume T, Yamada T, Morikawa M, Ishikawa S, Kojima T, Cho K, Masauzi N, Minakami H. Occult fetomaternal hemorrhage in women with pathological placenta with respect to permeability. J Obstet Gynaecol Res 2016; 42:632-9. [PMID: 26935605 DOI: 10.1111/jog.12959] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [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: 11/17/2015] [Accepted: 12/27/2015] [Indexed: 11/27/2022]
Abstract
AIM Women with pre-eclampsia (PE), placenta previa (PP), placental abruption (PA), and placental mesenchymal dysplasia (PMD) have been described as having placental permeability dysfunction. This study was performed to determine whether occult fetomaternal hemorrhage (FMH) is common in women with such complications and in women with non-reassuring fetal status. METHODS Forty-one antenatal and 39 postnatal blood samples were obtained from 46 women, including 11 with placental permeability dysfunction (5, 3, 2, and 1 with PE, PP, PA, and PMD, respectively) and 35 controls without such complications. To estimate the amount of fetal red blood cells, flow cytometry was performed using the fetal cell count system with two antibodies against fetal hemoglobin and carbonic anhydrase and the β-γ system with two monoclonal antibodies against hemoglobin β-chain and hemoglobin γ-chain. A diagnosis of FMH was made when the fraction size of the isolated cell population on scatter plots expressing fetal hemoglobin alone or hemoglobin γ-chain alone accounted for ≥0.02% of the total cell population on scatter plots. RESULTS FMH was identified in five women, including one each with PE, PA, PP, PMD, and no complications. Thus, the prevalence rate of FMH was significantly higher in women with complications than in controls (36% [4/11] vs 2.9% [1/35], respectively, P = 0.009). The FMH occurrence rate did not differ between women with and without non-reassuring fetal status (7.7% [1/13] vs 12% [4/33], respectively, P = 1.000). CONCLUSION The risk of fetal red blood cells trafficking into the maternal circulation may be increased in women complicated with PE, PA, PP, and PMD.
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Affiliation(s)
- T Umazume
- Department of Perinatal Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - T Yamada
- Department of Perinatal Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - M Morikawa
- Department of Perinatal Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - S Ishikawa
- Department of Perinatal Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - T Kojima
- Department of Perinatal Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - K Cho
- Department of Perinatal Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - N Masauzi
- Department of Medical Laboratory Science, Faculty of Health Sciences, Hokkaido University, Sapporo, Japan
| | - H Minakami
- Department of Perinatal Medicine, Hokkaido University Hospital, Sapporo, Japan
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28
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Sakurai T, Isogaya K, Sakai S, Morikawa M, Morishita Y, Ehata S, Miyazono K, Koinuma D. RNA-binding motif protein 47 inhibits Nrf2 activity to suppress tumor growth in lung adenocarcinoma. Oncogene 2016; 35:5000-9. [PMID: 26923328 PMCID: PMC5036161 DOI: 10.1038/onc.2016.35] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 12/22/2015] [Accepted: 01/11/2016] [Indexed: 01/27/2023]
Abstract
RNA-binding proteins provide a new layer of posttranscriptional regulation of RNA during cancer progression. We identified RNA-binding motif protein 47 (RBM47) as a target gene of transforming growth factor (TGF)-β in mammary gland epithelial cells (NMuMG cells) that have undergone the epithelial-to-mesenchymal transition. TGF-β repressed RBM47 expression in NMuMG cells and lung cancer cell lines. Expression of RBM47 correlated with good prognosis in patients with lung, breast and gastric cancer. RBM47 suppressed the expression of cell metabolism-related genes, which were the direct targets of nuclear factor erythroid 2-related factor 2 (Nrf2; also known as NFE2L2). RBM47 bound to KEAP1 and Cullin 3 mRNAs, and knockdown of RBM47 inhibited their protein expression, which led to enhanced binding of Nrf2 to target genomic regions. Knockdown of RBM47 also enhanced the expression of some Nrf2 activators, p21/CDKN1A and MafK induced by TGF-β. Both mitochondrial respiration rates and the side population cells in lung cancer cells increased in the absence of RBM47. Our findings, together with the enhanced tumor formation and metastasis of xenografted mice by knockdown of the RBM47 expression, suggested tumor-suppressive roles for RBM47 through the inhibition of Nrf2 activity.
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Affiliation(s)
- T Sakurai
- Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - K Isogaya
- Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - S Sakai
- Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - M Morikawa
- Ludwig Institute for Cancer Research, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Y Morishita
- Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - S Ehata
- Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - K Miyazono
- Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - D Koinuma
- Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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29
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Miyata K, Obayashi K, Saeki K, Tone N, Tanaka K, Nishi T, Morikawa M, Kurumatani N, Ogata N. Higher Cognitive Function in Elderly Individuals with Previous Cataract Surgery: Cross-Sectional Association Independent of Visual Acuity in the HEIJO-KYO Cohort. Rejuvenation Res 2016; 19:239-43. [PMID: 26414122 DOI: 10.1089/rej.2015.1718] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Cataract surgery improves visual acuity and drastically increases the capacity for light reception to the retina. Although previous studies suggested that both light exposure and visual acuity were associated with cognitive function, the relationships between cataract surgery, visual acuity, and cognitive function have not been evaluated in large populations. In this cross-sectional study, we measured cognitive function using the Mini-Mental State Examination and best-corrected visual acuity in pseudophakic (previous cataract surgery) and phakic (no previous cataract surgery) elderly individuals. Of 945 participants (mean age 71.7 years), 166 (17.6%) had pseudophakia and 317 (33.5%) had impaired cognitive function (score ≤26). The pseudophakic group showed significantly better visual acuity than the phakic group (p = 0.003) and lower age-adjusted odds ratio (ORs) for cognitive impairment (OR 0.66; p = 0.038). Consistently, in multivariate logistic regression models, after adjusting for confounding factors, including visual acuity and socioeconomic status, ORs for cognitive impairment were significantly lower in the pseudophakic group than in the phakic group (OR 0.64; 95% confidence interval 0.43-0.96; p = 0.031). This association remained significant in sensitivity analysis, excluding participants with low cognitive score ≤23 (n = 36). In conclusion, in a general elderly population, prevalence of cognitive impairment was significantly lower in pseudophakic individuals independently of visual acuity. The association was also independent of several major causes of cognitive impairment such as aging, gender, obesity, socioeconomic status, hypertension, diabetes, sleep disturbances, depressive symptoms, and physical inactivity.
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Affiliation(s)
- Kimie Miyata
- 1 Department of Ophthalmology, Nara Medical University School of Medicine , Nara, Japan
| | - Kenji Obayashi
- 2 Department of Community Health and Epidemiology, Nara Medical University School of Medicine , Nara, Japan
| | - Keigo Saeki
- 2 Department of Community Health and Epidemiology, Nara Medical University School of Medicine , Nara, Japan
| | - Nobuhiro Tone
- 3 Center for Academic Industrial and Governmental Relations, Nara Medical University School of Medicine , Nara, Japan
| | - Kunihiko Tanaka
- 4 Osaka City University , Graduate School of Medicine, Osaka, Japan
| | - Tomo Nishi
- 1 Department of Ophthalmology, Nara Medical University School of Medicine , Nara, Japan
| | - Masayuki Morikawa
- 5 Mie Prefectural Mental Care Center , Mie, Japan .,6 Department of Psychiatry, Nara Medical University School of Medicine , Nara, Japan
| | - Norio Kurumatani
- 2 Department of Community Health and Epidemiology, Nara Medical University School of Medicine , Nara, Japan
| | - Nahoko Ogata
- 1 Department of Ophthalmology, Nara Medical University School of Medicine , Nara, Japan
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30
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Cho T, Negoro H, Saka Y, Morikawa M, Kishimoto T. Two-year prognosis after residential treatment for patients with alcohol dependence: three chief guidelines for sobriety in Japan. Neuropsychiatr Dis Treat 2016; 12:1983-91. [PMID: 27540295 PMCID: PMC4981217 DOI: 10.2147/ndt.s111230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND In Japan, the three chief traditional guidelines for sobriety (3CGS) are regular medical checkups, participation in self-help groups, and pharmacotherapy with antidipsotropics. However, the official record of the origins of 3CGS is not clear. The aim of this current study was to assess 3CGS by an examination of the prognosis of patients with alcohol dependence 2 years after their discharge from a residential treatment program. SUBJECTS AND METHODS The association between subjects' abstinence from alcohol and their regular medical checkups, participation in self-help groups, and treatment with antidipsotropics were prospectively examined. Two years after discharge, the relationship between the 3CGS compliance and abstinence rates was investigated as the primary outcome. In addition, the following were examined as secondary outcomes: the time taken till the first drink after discharge, whether the participants were readmitted to residential treatment, the number of days to readmission, the number of heavy drinking days, and recovery. RESULTS A total of 98 patients participated. The perfect and partial abstinence rates for patients who followed all the principles of 3CGS were significantly higher than those for patients who followed no guidelines (P<0.05 and P<0.01, respectively). The perfect abstinence rates for patients who had continued attending checkup sessions (P<0.001) and who were taking antidipsotropics (P<0.05) were significantly higher than those for patients who did not follow these components of 3CGS. However, the perfect abstinence rates were not higher for patients who had continued to participate in self-help groups. In addition, the perfect abstinence rate was statistically associated with regular medical checkups (adjusted odds ratio =5.33, 95% confidence interval =1.35-21.0) and participation in self-help groups (adjusted odds ratio =3.79, 95% confidence interval =1.17-12.3). CONCLUSION This study, reports the effectiveness of 3CGS for the first time. The recovery rate of alcoholics 2 years after discharge from residential treatment was examined. However, due to the chronic nature of alcoholism, further studies are required to investigate the efficacy of 3CGS beyond 2 years.
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Affiliation(s)
- Tetsuji Cho
- Mie Prefectural Mental Care Center, Tsu-Shi, Mie; Department of Psychiatry, Nara Medical University School of Medicine, Kashihara, Nara
| | - Hideki Negoro
- Faculty of Education, Nara University of Education, Nara, Japan
| | | | - Masayuki Morikawa
- Mie Prefectural Mental Care Center, Tsu-Shi, Mie; Department of Psychiatry, Nara Medical University School of Medicine, Kashihara, Nara
| | - Toshifumi Kishimoto
- Department of Psychiatry, Nara Medical University School of Medicine, Kashihara, Nara
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31
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Takahama K, Miyawaki A, Shitara T, Mitsuya K, Morikawa M, Hagihara M, Kino K, Yamamoto A, Oyoshi T. G-Quadruplex DNA- and RNA-Specific-Binding Proteins Engineered from the RGG Domain of TLS/FUS. ACS Chem Biol 2015; 10:2564-9. [PMID: 26360301 DOI: 10.1021/acschembio.5b00566] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Human telomere DNA (Htelo) and telomeric repeat-containing RNA (TERRA) are integral telomere components containing the short DNA repeats d(TTAGGG) and RNA repeats r(UUAGGG), respectively. Htelo and TERRA form G-quadruplexes, but the biological significance of their G-quadruplex formation in telomeres is unknown. Compounds that selectively bind G-quadruplex DNA and RNA are useful for understanding the functions of each G-quadruplex. Here we report that engineered Arg-Gly-Gly repeat (RGG) domains of translocated in liposarcoma containing only Phe (RGGF) and Tyr (RGGY) specifically bind and stabilize the G-quadruplexes of Htelo and TERRA, respectively. Moreover, RGGF inhibits trimethylation of both histone H4 at lysine 20 and histone H3 at lysine 9 at telomeres, while RGGY inhibits only H3 trimethylation in living cells. These findings indicate that G-quadruplexes of Htelo and TERRA have distinct functions in telomere histone methylation.
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Affiliation(s)
- Kentaro Takahama
- Department
of Chemistry, Graduate School of Science, Shizuoka University, 836 Ohya, Suruga, Shizuoka 422-8529, Japan
| | - Arisa Miyawaki
- Department
of Chemistry, Graduate School of Science, Shizuoka University, 836 Ohya, Suruga, Shizuoka 422-8529, Japan
| | - Takumi Shitara
- Department
of Chemistry, Graduate School of Science, Shizuoka University, 836 Ohya, Suruga, Shizuoka 422-8529, Japan
| | - Keita Mitsuya
- Graduate
School of Science and Technology, Hirosaki University, 3 Bunkyo-cho, Hirosaki, Aomori 036-8561, Japan
| | - Masayuki Morikawa
- Kagawa
School of Pharmaceutical Sciences, Tokushima Bunri University, 1314-1
Shido, Sanuki-shi, Kagawa 769-2193, Japan
| | - Masaki Hagihara
- Graduate
School of Science and Technology, Hirosaki University, 3 Bunkyo-cho, Hirosaki, Aomori 036-8561, Japan
| | - Katsuhito Kino
- Kagawa
School of Pharmaceutical Sciences, Tokushima Bunri University, 1314-1
Shido, Sanuki-shi, Kagawa 769-2193, Japan
| | - Ayumu Yamamoto
- Department
of Chemistry, Graduate School of Science, Shizuoka University, 836 Ohya, Suruga, Shizuoka 422-8529, Japan
| | - Takanori Oyoshi
- Department
of Chemistry, Graduate School of Science, Shizuoka University, 836 Ohya, Suruga, Shizuoka 422-8529, Japan
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Tomioka K, Okamoto N, Morikawa M, Kurumatani N. Self-Reported Hearing Loss Predicts 5-Year Decline in Higher-Level Functional Capacity in High-Functioning Elderly Adults: The Fujiwara-Kyo Study. J Am Geriatr Soc 2015; 63:2260-8. [DOI: 10.1111/jgs.13780] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [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)
- Kimiko Tomioka
- Nara Prefectural Health Research Center; Nara Medical University; Kashihara Japan
| | - Nozomi Okamoto
- Department of Community Health and Epidemiology; Nara Medical University; Kashihara Japan
| | | | - Norio Kurumatani
- Nara Prefectural Health Research Center; Nara Medical University; Kashihara Japan
- Department of Community Health and Epidemiology; Nara Medical University; Kashihara Japan
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33
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Suzuki M, Kino K, Kawada T, Oyoshi T, Morikawa M, Kobayashi T, Miyazawa H. Contiguous 2,2,4-triamino-5(2H)-oxazolone obstructs DNA synthesis by DNA polymerases α, β, η, ι, κ, REV1 and Klenow Fragment exo-, but not by DNA polymerase ζ. J Biochem 2015; 159:323-9. [PMID: 26491064 PMCID: PMC4763079 DOI: 10.1093/jb/mvv103] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Accepted: 09/10/2015] [Indexed: 12/18/2022] Open
Abstract
Guanine is the most easily oxidized of the four DNA bases, and contiguous guanines (GG) in a sequence are more readily oxidized than a single guanine in a sequence. Continued oxidation of GGs results in a contiguous oxidized guanine lesion. Two contiguous 2,5-diamino-4H-imidazol-4-ones, an oxidized form of guanine that hydrolyses to 2,2,4-triamino-5(2H)-oxazolone (Oz), are detected following the oxidation of GG. In this study, we analysed translesion synthesis (TLS) across two contiguous Oz molecules (OzOz) using Klenow Fragment exo− (KF exo−) and DNA polymerases (Pols) α, β, ζ, η, ι, κ and REV1. We found that KF exo− and Pols α, β, ι and REV1 inserted one nucleotide opposite the 3′ Oz of OzOz and stalled at the subsequent extension, and that Pol κ incorporated no nucleotide. Pol η only inefficiently elongated the primer up to full-length across OzOz; the synthesis of most DNA strands stalled at the 3′ or 5′ Oz of OzOz. Surprisingly, however, Pol ζ efficiently extended the primer up to full-length across OzOz, unlike the other DNA polymerases, but catalysed error-prone nucleotide incorporation. We therefore believe that Pol ζ is required for efficient TLS of OzOz. These results show that OzOz obstructs DNA synthesis by DNA polymerases except Pol ζ.
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Affiliation(s)
- Masayo Suzuki
- Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University, 1314-1, Shido, Sanuki, Kagawa 769-2193, Japan and
| | - Katsuhito Kino
- Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University, 1314-1, Shido, Sanuki, Kagawa 769-2193, Japan and
| | - Taishu Kawada
- Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University, 1314-1, Shido, Sanuki, Kagawa 769-2193, Japan and
| | - Takanori Oyoshi
- Faculty of Science, Department of Chemistry, Shizuoka University, 836 Ohya, Suruga, Shizuoka 422-8529, Japan
| | - Masayuki Morikawa
- Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University, 1314-1, Shido, Sanuki, Kagawa 769-2193, Japan and
| | - Takanobu Kobayashi
- Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University, 1314-1, Shido, Sanuki, Kagawa 769-2193, Japan and
| | - Hiroshi Miyazawa
- Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University, 1314-1, Shido, Sanuki, Kagawa 769-2193, Japan and
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Kusunoki S, Kuwahara M, Hamada Y, Morikawa M, Ueno R, Samukawa M, Mitsui Y. Clinical and serological investigation of IGM paraproteinemic neuropathies without anti-MAG antibody activities. J Neurol Sci 2015. [DOI: 10.1016/j.jns.2015.08.245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Okamoto N, Morikawa M, Yanagi M, Amano N, Tomioka K, Hazaki K, Harano A, Kurumatani N. Association of Tooth Loss With Development of Swallowing Problems in Community-Dwelling Independent Elderly Population: The Fujiwara-kyo Study. J Gerontol A Biol Sci Med Sci 2015; 70:1548-54. [DOI: 10.1093/gerona/glv116] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Accepted: 06/22/2015] [Indexed: 11/13/2022] Open
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Obayashi K, Saeki K, Iwamoto J, Tone N, Tanaka K, Kataoka H, Morikawa M, Kurumatani N. Physiological Levels of Melatonin Relate to Cognitive Function and Depressive Symptoms: The HEIJO-KYO Cohort. J Clin Endocrinol Metab 2015; 100:3090-6. [PMID: 26052727 DOI: 10.1210/jc.2015-1859] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [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] [Indexed: 01/17/2023]
Abstract
CONTEXT In contrast with randomized controlled trials, observational studies have suggested that physiological levels of melatonin are reduced in patients with dementia or depression, but the relationship has not been evaluated in large populations. OBJECTIVE The objective was to determine the relationships between physiological levels of melatonin and cognitive function and depressive symptoms. DESIGN AND PARTICIPANTS A cohort of 1105 community-dwelling elderly individuals was enrolled in this cross-sectional study (mean age, 71.8 ± 7.1 y). MEASURES Urinary 6-sulfatoxymelatonin excretion (UME) and Mini-Mental State Examination (MMSE; n = 935) and Geriatric Depression Scale (GDS; n = 1097) scores were measured as indices of physiological melatonin levels, cognitive function, and depressive symptoms, respectively. RESULTS With increases in UME quartiles, the prevalence of cognitive impairment (MMSE score ≤ 26) and depressed mood (GDS score ≥ 6) significantly decreased (P for trend = .003 and .012, respectively). In multivariate logistic regression models, after adjusting for confounders such as age, gender, socioeconomic status, physical activity, and sleep/wake cycles, higher UME levels were significantly associated with lower odds ratios (ORs) for cognitive impairment and depressed mood (ORs: Q1 = 1.00; Q2 = 0.88 and 0.76; Q3 = 0.66 and 0.85; Q4 = 0.67 and 0.53; P for trend = .023 and .033, respectively). In addition, the highest UME group showed a significantly lower OR for depressed mood than the lowest UME group (Q4 vs Q1: OR, 0.53; 95% confidence interval, 0.32-0.89; P = .033). UME levels above the median value were significantly associated with a lower OR for cognitive impairment, even after further adjustment for depressive symptoms (OR = 0.74; 95% confidence interval, 0.55-0.99; P = .043). CONCLUSIONS Significant associations of higher physiological melatonin levels with lower prevalence of cognitive impairment and depressed mood were revealed in a large general elderly population. The association between physiological melatonin levels and cognitive function was independent of depressive symptoms.
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Affiliation(s)
- Kenji Obayashi
- Department of Community Health and Epidemiology (K.O., K.S., N.K.), Center for Academic Industrial and Governmental Relations (N.T.), Department of Neurology (H.K.), and Department of Psychiatry (M.M.), Nara Medical University School of Medicine, Nara 634-8521, Japan; Department of Nursing (J.I.), Tenri Health Care University, Nara 632-0018, Japan; Osaka City University Graduate School of Medicine (K.T.), Osaka 545-8585, Japan; and Mie Prefectural Mental Care Center (M.M.), Mie 514-0818, Japan
| | - Keigo Saeki
- Department of Community Health and Epidemiology (K.O., K.S., N.K.), Center for Academic Industrial and Governmental Relations (N.T.), Department of Neurology (H.K.), and Department of Psychiatry (M.M.), Nara Medical University School of Medicine, Nara 634-8521, Japan; Department of Nursing (J.I.), Tenri Health Care University, Nara 632-0018, Japan; Osaka City University Graduate School of Medicine (K.T.), Osaka 545-8585, Japan; and Mie Prefectural Mental Care Center (M.M.), Mie 514-0818, Japan
| | - Junko Iwamoto
- Department of Community Health and Epidemiology (K.O., K.S., N.K.), Center for Academic Industrial and Governmental Relations (N.T.), Department of Neurology (H.K.), and Department of Psychiatry (M.M.), Nara Medical University School of Medicine, Nara 634-8521, Japan; Department of Nursing (J.I.), Tenri Health Care University, Nara 632-0018, Japan; Osaka City University Graduate School of Medicine (K.T.), Osaka 545-8585, Japan; and Mie Prefectural Mental Care Center (M.M.), Mie 514-0818, Japan
| | - Nobuhiro Tone
- Department of Community Health and Epidemiology (K.O., K.S., N.K.), Center for Academic Industrial and Governmental Relations (N.T.), Department of Neurology (H.K.), and Department of Psychiatry (M.M.), Nara Medical University School of Medicine, Nara 634-8521, Japan; Department of Nursing (J.I.), Tenri Health Care University, Nara 632-0018, Japan; Osaka City University Graduate School of Medicine (K.T.), Osaka 545-8585, Japan; and Mie Prefectural Mental Care Center (M.M.), Mie 514-0818, Japan
| | - Kunihiko Tanaka
- Department of Community Health and Epidemiology (K.O., K.S., N.K.), Center for Academic Industrial and Governmental Relations (N.T.), Department of Neurology (H.K.), and Department of Psychiatry (M.M.), Nara Medical University School of Medicine, Nara 634-8521, Japan; Department of Nursing (J.I.), Tenri Health Care University, Nara 632-0018, Japan; Osaka City University Graduate School of Medicine (K.T.), Osaka 545-8585, Japan; and Mie Prefectural Mental Care Center (M.M.), Mie 514-0818, Japan
| | - Hiroshi Kataoka
- Department of Community Health and Epidemiology (K.O., K.S., N.K.), Center for Academic Industrial and Governmental Relations (N.T.), Department of Neurology (H.K.), and Department of Psychiatry (M.M.), Nara Medical University School of Medicine, Nara 634-8521, Japan; Department of Nursing (J.I.), Tenri Health Care University, Nara 632-0018, Japan; Osaka City University Graduate School of Medicine (K.T.), Osaka 545-8585, Japan; and Mie Prefectural Mental Care Center (M.M.), Mie 514-0818, Japan
| | - Masayuki Morikawa
- Department of Community Health and Epidemiology (K.O., K.S., N.K.), Center for Academic Industrial and Governmental Relations (N.T.), Department of Neurology (H.K.), and Department of Psychiatry (M.M.), Nara Medical University School of Medicine, Nara 634-8521, Japan; Department of Nursing (J.I.), Tenri Health Care University, Nara 632-0018, Japan; Osaka City University Graduate School of Medicine (K.T.), Osaka 545-8585, Japan; and Mie Prefectural Mental Care Center (M.M.), Mie 514-0818, Japan
| | - Norio Kurumatani
- Department of Community Health and Epidemiology (K.O., K.S., N.K.), Center for Academic Industrial and Governmental Relations (N.T.), Department of Neurology (H.K.), and Department of Psychiatry (M.M.), Nara Medical University School of Medicine, Nara 634-8521, Japan; Department of Nursing (J.I.), Tenri Health Care University, Nara 632-0018, Japan; Osaka City University Graduate School of Medicine (K.T.), Osaka 545-8585, Japan; and Mie Prefectural Mental Care Center (M.M.), Mie 514-0818, Japan
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Suzuki M, Kino K, Kawada T, Morikawa M, Kobayashi T, Miyazawa H. Analysis of nucleotide insertion opposite 2,2,4-triamino-5(2H)-oxazolone by eukaryotic B- and Y-family DNA polymerases. Chem Res Toxicol 2015; 28:1307-16. [PMID: 26010525 DOI: 10.1021/acs.chemrestox.5b00114] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Mutations induced by oxidative DNA damage can cause diseases such as cancer. In particular, G:C-T:A and G:C-C:G transversions are caused by oxidized guanine and have been observed in the p53 and K-ras genes. We focused on an oxidized form of guanine, 2,2,4-triamino-5(2H)-oxazolone (Oz), as a cause of G:C-C:G transversions based on our earlier elucidation that DNA polymerases (Pols) α, β, γ, ε, η, I, and IV incorporate dGTP opposite Oz. The nucleotide insertion and extension of Pols δ, ζ, ι, κ, and REV1, belonging to the B- and Y-families of DNA polymerases, were analyzed for the first time. Pol δ incorporated dGTP, in common with other replicative DNA polymerases. Pol ζ incorporated dGTP and dATP, and the efficiency of elongation up to full-length beyond Oz was almost the same as that beyond G. Although nucleotide incorporation by Pols ι or κ was also error-prone, they did not extend the primer. On the other hand, the polymerase REV1 predominantly incorporated dCTP opposite Oz more efficiently than opposite 8-oxo-7,8-dihydroguanine, guanidinohydantoin, or tetrahydrofuran. Here, we demonstrate that Pol ζ can efficiently replicate DNA containing Oz and that REV1 can prevent G:C-C:G transversions caused by Oz.
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Affiliation(s)
- Masayo Suzuki
- Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University, 1314-1, Shido, Sanuki, Kagawa 769-2193, Japan
| | - Katsuhito Kino
- Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University, 1314-1, Shido, Sanuki, Kagawa 769-2193, Japan
| | - Taishu Kawada
- Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University, 1314-1, Shido, Sanuki, Kagawa 769-2193, Japan
| | - Masayuki Morikawa
- Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University, 1314-1, Shido, Sanuki, Kagawa 769-2193, Japan
| | - Takanobu Kobayashi
- Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University, 1314-1, Shido, Sanuki, Kagawa 769-2193, Japan
| | - Hiroshi Miyazawa
- Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University, 1314-1, Shido, Sanuki, Kagawa 769-2193, Japan
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Morikawa M, Kino K, Oyoshi T, Suzuki M, Kobayashi T, Miyazawa H. Calculation of the HOMO localization of Tetrahymena and Oxytricha telomeric quadruplex DNA. Bioorg Med Chem Lett 2015; 25:3359-62. [PMID: 26071638 DOI: 10.1016/j.bmcl.2015.05.050] [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: 03/12/2015] [Revised: 05/16/2015] [Accepted: 05/19/2015] [Indexed: 10/23/2022]
Abstract
Several guanine-rich sequences exist in many important regions, such as telomeres, and these sequences can form quadruplex DNA structures. It was previously reported that 3'-guanines are mainly oxidized in the Tetrahymena and Oxytricha telomeric quadruplex DNA, d(TGGGGT)4, and 5'-guanines are mainly oxidized in the human telomeric quadruplex DNA, d(TAGGGT)4T. We speculated that the differences in site reactivity between d(TGGGGT)4 and d(TAGGGT)4T are induced by the localization of the HOMO. The HOMOs of the possible quadruplex structures were thus determined and the results showed that the HOMOs of d(TGGGGT)4 +3K(+) and d(TAGGGT)4T +2K(+) localized at the 5'-guanine, and that the HOMO shifted from the 5'-guanine to the 3'-guanine by the addition of a 5'-capping cation. Furthermore, we determined the influence of the cation and demonstrated that localization of the HOMO at the G-quartet plane located immediately adjacent to the cation is disfavored. The calculated HOMO localization of d(TGGGGT)4 +4K(+) and d(TAGGGT)4T +2K(+) matched the experimental results and suggest that d(TGGGGT)4 contains a 5'-capping cation in solution.
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Affiliation(s)
- Masayuki Morikawa
- Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University, 1314-1 Shido, Sanuki, Kagawa 769-2193, Japan
| | - Katsuhito Kino
- Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University, 1314-1 Shido, Sanuki, Kagawa 769-2193, Japan.
| | - Takanori Oyoshi
- Faculty of Science, Department of Chemistry, Shizuoka University, 836 Ohya, Suruga, Shizuoka 422-8529, Japan
| | - Masayo Suzuki
- Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University, 1314-1 Shido, Sanuki, Kagawa 769-2193, Japan
| | - Takanobu Kobayashi
- Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University, 1314-1 Shido, Sanuki, Kagawa 769-2193, Japan
| | - Hiroshi Miyazawa
- Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University, 1314-1 Shido, Sanuki, Kagawa 769-2193, Japan
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Zhang Y, Hashimoto S, Fujii C, Hida S, Ito K, Matsumura T, Sakaizawa T, Morikawa M, Masuki S, Nose H, Higuchi K, Nakajima K, Taniguchi S. NFκB2 Gene as a Novel Candidate that Epigenetically Responds to Interval Walking Training. Int J Sports Med 2015; 36:769-75. [PMID: 25901949 DOI: 10.1055/s-0035-1547221] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Physical fitness has been reported to decrease the risk of lifestyle-related diseases. The present study evaluated genome-wide methylation under the hypothesis that interval walking training (IWT) imparted beneficial effects on health, particularly by epigenetically ameliorating susceptibility to inflammation. We screened DNA from peripheral blood samples via genome-wide microarray for genes whose methylation was affected by IWT, paying special attention to promoter regions, and identified over 40 hyper- or hypo-methylated genes following IWT that were not witnessed in controls. We next selected genes in which the degree of methylation change in the promoter region was correlated with energy consumption following IWT. In this way, we found the NFκB2 gene to have increased methylation in multiple regions of its promoter sequence following participation in an exercise regimen. Next, IWT-induced NFκB2 hyper-methylation was confirmed by a quantitative PyroSequencing assessment of methylation in samples obtained from independent subjects who also underwent IWT. The increase in NFκB2 gene promoter methylation by IWT indicates that this regimen may suppress pro-inflammatory cytokines. Thus, these results provide an additional line of evidence that IWT is advantageous in promoting health from an epigenetic perspective by ameliorating susceptibility to inflammation.
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Affiliation(s)
- Y Zhang
- Department of Molecular Oncology, Institute of Pathogenesis and Disease Prevention, Shinshu University Graduate School of Medicine, Matsumoto, Japan
| | - S Hashimoto
- Department of Molecular Oncology, Institute of Pathogenesis and Disease Prevention, Shinshu University Graduate School of Medicine, Matsumoto, Japan
| | - C Fujii
- Department of Molecular Oncology, Institute of Pathogenesis and Disease Prevention, Shinshu University Graduate School of Medicine, Matsumoto, Japan
| | - S Hida
- Department of Molecular Oncology, Institute of Pathogenesis and Disease Prevention, Shinshu University Graduate School of Medicine, Matsumoto, Japan
| | - K Ito
- Department of Molecular Oncology, Institute of Pathogenesis and Disease Prevention, Shinshu University Graduate School of Medicine, Matsumoto, Japan
| | - T Matsumura
- Department of Molecular Oncology, Institute of Pathogenesis and Disease Prevention, Shinshu University Graduate School of Medicine, Matsumoto, Japan
| | - T Sakaizawa
- Department of Molecular Oncology, Institute of Pathogenesis and Disease Prevention, Shinshu University Graduate School of Medicine, Matsumoto, Japan
| | - M Morikawa
- Department of Advanced Medicine for Health Promotion Institute for Biomedical Sciences, Shinshu University Interdisciplinary Cluster for Cutting Edge Research, Matsumoto, Japan
| | - S Masuki
- Department of Advanced Medicine for Health Promotion Institute for Biomedical Sciences, Shinshu University Interdisciplinary Cluster for Cutting Edge Research, Matsumoto, Japan
| | - H Nose
- Department of Advanced Medicine for Health Promotion Institute for Biomedical Sciences, Shinshu University Interdisciplinary Cluster for Cutting Edge Research, Matsumoto, Japan
| | - K Higuchi
- Department of Aging Biology, Institute of Pathogenesis and Disease Prevention, Shinshu University Graduate School of Medicine, Matsumoto, Japan
| | - K Nakajima
- Department of Sports and Health Sciences, Faculty of Human Health Science, Matsumoto University, Matsumoto, Japan
| | - S Taniguchi
- Department of Molecular Oncology, Institute of Pathogenesis and Disease Prevention, Shinshu University Graduate School of Medicine, Matsumoto, Japan
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Okamoto N, Morikawa M, Tomioka K, Yanagi M, Amano N, Kurumatani N. Association between Tooth Loss and the Development of Mild Memory Impairment in the Elderly: The Fujiwara-kyo Study. ACTA ACUST UNITED AC 2015; 44:777-86. [DOI: 10.3233/jad-141665] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Nozomi Okamoto
- Department of Community Health and Epidemiology, Nara Medical University, Japan
| | - Masayuki Morikawa
- Mie Prefectural Mental Care Center, Japan
- Department of Psychiatry, Nara Medical University, Japan
| | - Kimiko Tomioka
- Department of Community Health and Epidemiology, Nara Medical University, Japan
| | - Motokazu Yanagi
- Department of Food and Nutrition, Tezukayama University, Japan
| | - Nobuko Amano
- Department of Food and Nutrition, Tezukayama University, Japan
| | - Norio Kurumatani
- Department of Community Health and Epidemiology, Nara Medical University, Japan
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Akaishi R, Yamada T, Kawaguchi S, Kojima T, Koyama T, Umazume T, Morikawa M, Cho K, Minakami H. Uptake of non-invasive prenatal testing by Japanese women. Ultrasound Obstet Gynecol 2015; 45:113-114. [PMID: 25270576 DOI: 10.1002/uog.14676] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 09/10/2014] [Accepted: 09/19/2014] [Indexed: 06/03/2023]
Affiliation(s)
- R Akaishi
- Department of Obstetrics, Hokkaido University Graduate School of Medicine, Kita-ku, Sapporo, Japan
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Kobayashi T, Suzuki M, Morikawa M, Kino K, Tanuma SI, Miyazawa H. Transcriptional regulation of Tal2 gene by all-trans retinoic acid (atRA) in P19 cells. Biol Pharm Bull 2014; 38:248-56. [PMID: 25482166 DOI: 10.1248/bpb.b14-00617] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
TAL2 is a transcription factor required in the normal development of mouse brain. In a previous study, we demonstrated that the expression of Tal2 gene is induced by the complex of all-trans retinoic acid (atRA) and retinoic acid receptor α (RARα) in mouse embryonal carcinoma P19 cells. atRA is also known to be important in inducing P19 cells to differentiate into the neural lineage. Therefore, we believe that the function of TAL2 in neural differentiation may be clarified by utilizing P19 cells. As the atRA-RARα complex induced the expression of Tal2, we focused on the regulatory region that is involved in its transcription. The atRA-RARα complex occupies a characteristic retinoic acid response element (RARE) located in the promoter of target genes. Therefore, we searched for RARE on the mouse Tal2 and found that a RARE-like element was located in the intron. We also found that a TATA-box-like element was located in the 5'-region of Tal2. Involvement between transcriptional activity and the TATA-box-like element was confirmed in the luciferase assay, and TATA-box binding protein was bound to this element upstream of Tal2 in P19 cells. atRA signaling activated the transcription through the RARE-like element, and RARα was bound to this element on Tal2 in P19 cells. In addition, the interaction between these elements on Tal2 was shown in the chromatin immunoprecipitation assay. These results suggest that the transcription of Tal2 is coordinately mediated by two distal regulatory elements.
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Akaishi R, Yamada T, Nakabayashi K, Nishihara H, Furuta I, Kojima T, Morikawa M, Yamada T, Fujita N, Minakami H. Autophagy in the placenta of women with hypertensive disorders in pregnancy. Placenta 2014; 35:974-80. [DOI: 10.1016/j.placenta.2014.10.009] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Revised: 10/16/2014] [Accepted: 10/18/2014] [Indexed: 01/26/2023]
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Yamada T, Akaishi R, Oda Y, Nishida R, Yamada T, Ishikawa S, Morikawa M, Kojima T, Minakami H. Antenatal fibrinogen concentrations and postpartum haemorrhage. Int J Obstet Anesth 2014; 23:365-70. [DOI: 10.1016/j.ijoa.2014.06.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2013] [Revised: 06/13/2014] [Accepted: 06/16/2014] [Indexed: 11/17/2022]
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Komatsu M, Nezu S, Tomioka K, Hazaki K, Harano A, Morikawa M, Takagi M, Yamada M, Matsumoto Y, Iwamoto J, Ishizuka R, Saeki K, Okamoto N, Kurumatani N. [Factors associated with activities of daily living (ADL) in independently living elderly persons in a community: a baseline examination of a large scale cohort study, Fujiwara-kyo study]. Nihon Eiseigaku Zasshi 2014; 68:22-32. [PMID: 23358373 DOI: 10.1265/jjh.68.22] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVES To investigate factors associated with activities of daily living in independently living elderly persons in a community. SUBJECTS AND METHODS The potential subjects were 4,472 individuals aged 65 years and older who voluntarily participated in a large cohort study, the Fujiwara-kyo study. We used self-administered questionnaires consisting of an activities of daily living (ADL) questionnaire with the Physical Fitness Test established by the Ministry of Education, Culture, Sports, Science and Technology (12 ADL items) to determine the index of higher-level physical independence, demographics, Geriatric Depression Scale, and so on. Mini-mental state examination, measurement of physical fitness, and blood tests were also carried out. A lower ADL level was defined as having a total score of the 12 ADL items (range, 12-36 points) that was below the first quartile of a total score for all the subjects. Factors associated with a low ADL level were examined by multiple logistic regression. RESULTS A total of 4,198 remained as subjects for analysis. The male, female and 5-year-old groups showed significant differences in the median score of 12 ADL items between any two groups. The highest odds ratio among factors associated with lower ADL level by multiple logistic regression with mutually adjusted independent variables was 4.49 (95%CI: 2.82-7.17) in the groups of "very sharp pain" or "strong pain" during the last month. Low physical ability, self-awareness of limb weakness, a BMI of over 25, low physical activity, cerebrovascular disorder, depression, low cognitive function, unable "to see normally", unable "to hear someone", "muscle, bone and joint pain" were independently associated with lower ADL level. CONCLUSION Multiple factors are associated with lower ADL level assessed on the basis of the 12 ADL items.
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Affiliation(s)
- Masayo Komatsu
- Department of Community Health and Epidemiology, Nara Medical University School of Medicine
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Kuno K, Cho T, Saka Y, Morikawa M. P-69 * HARM REDUCTION APPROACHES FOR A PATIENT WITH ANOREXIA NERVOSA. Alcohol Alcohol 2014. [DOI: 10.1093/alcalc/agu054.69] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Cho T, Saka Y, Morikawa M, Kishimoto T. SY28-3 * MOTIVATIONAL INTERVIEWING IN THE CLINICAL SETTINGS IN JAPAN. Alcohol Alcohol 2014. [DOI: 10.1093/alcalc/agu052.122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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48
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Cho T, Toritsuka M, Saka Y, Morikawa M, Kishimoto T. SY44-3 * COLLABORATIVE MEDICAL CARE OF ALCOHOL USE DISORDER. Alcohol Alcohol 2014. [DOI: 10.1093/alcalc/agu052.187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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49
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Tomioka K, Harano A, Hazaki K, Morikawa M, Iwamoto J, Saeki K, Okamoto N, Kurumatani N. Walking speed is associated with self-perceived hearing handicap in high-functioning older adults: The Fujiwara-kyo study. Geriatr Gerontol Int 2014; 15:745-54. [DOI: 10.1111/ggi.12344] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/20/2014] [Indexed: 11/29/2022]
Affiliation(s)
- Kimiko Tomioka
- Department of Community Health and Epidemiology; Nara Medical University; Kashihara Japan
| | - Akihiro Harano
- Department of Orthopedic Surgery; Nara Medical University; Kashihara Japan
| | - Kan Hazaki
- Department of Physical Therapy; Osaka Electro-Communication University; Shijonawate Japan
| | | | - Junko Iwamoto
- Department of Nursing; Tenri Health Care University; Tenri Japan
| | - Keigo Saeki
- Department of Community Health and Epidemiology; Nara Medical University; Kashihara Japan
| | - Nozomi Okamoto
- Department of Community Health and Epidemiology; Nara Medical University; Kashihara Japan
| | - Norio Kurumatani
- Department of Community Health and Epidemiology; Nara Medical University; Kashihara Japan
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Kiuchi K, Kitamura S, Taoka T, Yasuno F, Tanimura M, Matsuoka K, Ikawa D, Toritsuka M, Hashimoto K, Makinodan M, Kosaka J, Morikawa M, Kichikawa K, Kishimoto T. Gray and white matter changes in subjective cognitive impairment, amnestic mild cognitive impairment and Alzheimer's disease: a voxel-based analysis study. PLoS One 2014; 9:e104007. [PMID: 25093415 PMCID: PMC4122459 DOI: 10.1371/journal.pone.0104007] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [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: 01/18/2014] [Accepted: 07/05/2014] [Indexed: 11/19/2022] Open
Abstract
Subjective cognitive impairment may be a very early at-risk period of the continuum of dementia. However, it is difficult to discriminate at-risk states from normal aging. Thus, detection of the early pathological changes in the subjective cognitive impairment period is needed. To elucidate these changes, we employed diffusion tensor imaging and volumetry analysis, and compared subjective cognitive impairment with normal, mild cognitive impairment and Alzheimer's disease. The subjects in this study were 39 Alzheimer's disease, 43 mild cognitive impairment, 28 subjective cognitive impairment and 41 normal controls. There were no statistically significant differences between the normal control and subjective cognitive impairment groups in all measures. Alzheimer's disease and mild cognitive impairment had the same extent of brain atrophy and diffusion changes. These results are consistent with the hypothetical model of the dynamic biomarkers of Alzheimer's disease.
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Affiliation(s)
- Kuniaki Kiuchi
- Department of Psychiatry, Nara Medical University, Kashihara, Japan
- Medical Center for Dementia, Nara Medical University, Kashihara, Japan
- Sakai City Mental Health Center, Sakai, Japan
- * E-mail:
| | - Soichiro Kitamura
- Department of Psychiatry, Nara Medical University, Kashihara, Japan
- Medical Center for Dementia, Nara Medical University, Kashihara, Japan
- Molecular Imaging Center, National Institute of Radiological Sciences, Chiba, Japan
| | - Toshiaki Taoka
- Department of Radiology, Nara Medical University, Kashihara, Japan
| | - Fumihiko Yasuno
- Department of Psychiatry, Nara Medical University, Kashihara, Japan
- Medical Center for Dementia, Nara Medical University, Kashihara, Japan
| | | | - Kiwamu Matsuoka
- Department of Psychiatry, Nara Medical University, Kashihara, Japan
- Medical Center for Dementia, Nara Medical University, Kashihara, Japan
| | - Daisuke Ikawa
- Department of Psychiatry, Nara Medical University, Kashihara, Japan
| | | | | | - Manabu Makinodan
- Department of Psychiatry, Nara Medical University, Kashihara, Japan
| | - Jun Kosaka
- Department of Psychiatry, Nara Medical University, Kashihara, Japan
| | - Masayuki Morikawa
- Department of Psychiatry, Nara Medical University, Kashihara, Japan
- Mie Prefectural Mental Care Center, Tsu, Japan
| | | | - Toshifumi Kishimoto
- Department of Psychiatry, Nara Medical University, Kashihara, Japan
- Medical Center for Dementia, Nara Medical University, Kashihara, Japan
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