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Nakaya K, Nakaya N, Kogure M, Hatanaka R, Chiba I, Kanno I, Nagaie S, Nakamura T, Kanazawa M, Ogishima S, Fuse N, Fukudo S, Hozawa A. Factors Associated With the Prevalence of Irritable Bowel Syndrome: The Miyagi Part of the Tohoku Medical Megabank Project Community-based Cohort Study. J Neurogastroenterol Motil 2024; 30:208-219. [PMID: 38576370 PMCID: PMC10999836 DOI: 10.5056/jnm23090] [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] [Received: 06/16/2023] [Revised: 08/28/2023] [Accepted: 10/16/2023] [Indexed: 04/06/2024] Open
Abstract
Background/Aims The objective of this research is to examine factors related to irritable bowel syndrome (IBS) prevalence in a large population-based study. Methods A cross-sectional study was conducted with participants in the Miyagi part of the Tohoku Medical Megabank Project Community-Based cohort study who completed the Rome II Modular Questionnaire. Multivariate odds ratios (ORs) for the presence of IBS and 95% confidence intervals (95% CIs) for the reference group were calculated for each factor. Additionally, a stratified analysis was performed by sex and age group (20-49 years, 50-64 years, and ≥ 65 years). Results Among 16 252 participants, 3025 (18.6%) had IBS, comprising 750 men (15.5%) and 2275 women (19.9%). Multivariate ORs for the presence of IBS decreased significantly with each year of age (OR, 0.98; 95% CI, 0.98-0.99). Moreover, compared with the reference group, ORs for the presence of IBS were significantly higher in individuals whose home was partially damaged by the Great East Japan Earthquake, those with < 16 years of education, those who spent less time walking, those with high perceived stress (1.77, 1.57-2.01), those with high psychological distress (1.58, 1.36-1.82), and those with high symptoms of depression (1.76, 1.60-1.94). In stratified analyses, a significant relationship was found between psychological factors and IBS prevalence in all sex and age groups. Conclusions This large cross-sectional population-based cohort study identified several factors associated with IBS prevalence. Psychological factors were significantly associated with IBS prevalence across all age groups and sexes.
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Affiliation(s)
- Kumi Nakaya
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Naoki Nakaya
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Mana Kogure
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Rieko Hatanaka
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Ippei Chiba
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Ikumi Kanno
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Satoshi Nagaie
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Tomohiro Nakamura
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Graduate School of Medicine, Tohoku University, Sendai, Japan
- Faculty of Data Science, Kyoto Women’s University, Kyoto, Japan
| | | | - Soichi Ogishima
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Nobuo Fuse
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Shin Fukudo
- Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Atsushi Hozawa
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Graduate School of Medicine, Tohoku University, Sendai, Japan
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Fukudo S, Okumura T, Inamori M, Okuyama Y, Kanazawa M, Kamiya T, Sato K, Shiotani A, Naito Y, Fujikawa Y, Hokari R, Masaoka T, Fujimoto K, Kaneko H, Torii A, Matsueda K, Miwa H, Enomoto N, Shimosegawa T, Koike K. Correction: Evidence-based clinical practice guidelines for irritable bowel syndrome 2020. J Gastroenterol 2023; 58:1165. [PMID: 37752291 PMCID: PMC10590284 DOI: 10.1007/s00535-023-02044-0] [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: 09/28/2023]
Affiliation(s)
- Shin Fukudo
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi I-MARK Building, 2-6-2 Shimbashi, Minato-Ku, Tokyo, 105-0004, Japan.
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, 2-1 Seiryo-Machi, Aoba-Ku, Sendai, 980-8575, Japan.
| | - Toshikatsu Okumura
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi I-MARK Building, 2-6-2 Shimbashi, Minato-Ku, Tokyo, 105-0004, Japan
| | - Masahiko Inamori
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi I-MARK Building, 2-6-2 Shimbashi, Minato-Ku, Tokyo, 105-0004, Japan
| | - Yusuke Okuyama
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi I-MARK Building, 2-6-2 Shimbashi, Minato-Ku, Tokyo, 105-0004, Japan
| | - Motoyori Kanazawa
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi I-MARK Building, 2-6-2 Shimbashi, Minato-Ku, Tokyo, 105-0004, Japan
| | - Takeshi Kamiya
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi I-MARK Building, 2-6-2 Shimbashi, Minato-Ku, Tokyo, 105-0004, Japan
| | - Ken Sato
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi I-MARK Building, 2-6-2 Shimbashi, Minato-Ku, Tokyo, 105-0004, Japan
| | - Akiko Shiotani
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi I-MARK Building, 2-6-2 Shimbashi, Minato-Ku, Tokyo, 105-0004, Japan
| | - Yuji Naito
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi I-MARK Building, 2-6-2 Shimbashi, Minato-Ku, Tokyo, 105-0004, Japan
| | - Yoshiko Fujikawa
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi I-MARK Building, 2-6-2 Shimbashi, Minato-Ku, Tokyo, 105-0004, Japan
| | - Ryota Hokari
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi I-MARK Building, 2-6-2 Shimbashi, Minato-Ku, Tokyo, 105-0004, Japan
| | - Tatsuhiro Masaoka
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi I-MARK Building, 2-6-2 Shimbashi, Minato-Ku, Tokyo, 105-0004, Japan
| | - Kazuma Fujimoto
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi I-MARK Building, 2-6-2 Shimbashi, Minato-Ku, Tokyo, 105-0004, Japan
| | - Hiroshi Kaneko
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi I-MARK Building, 2-6-2 Shimbashi, Minato-Ku, Tokyo, 105-0004, Japan
| | - Akira Torii
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi I-MARK Building, 2-6-2 Shimbashi, Minato-Ku, Tokyo, 105-0004, Japan
| | - Kei Matsueda
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi I-MARK Building, 2-6-2 Shimbashi, Minato-Ku, Tokyo, 105-0004, Japan
| | - Hiroto Miwa
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi I-MARK Building, 2-6-2 Shimbashi, Minato-Ku, Tokyo, 105-0004, Japan
| | - Nobuyuki Enomoto
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi I-MARK Building, 2-6-2 Shimbashi, Minato-Ku, Tokyo, 105-0004, Japan
| | - Tooru Shimosegawa
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi I-MARK Building, 2-6-2 Shimbashi, Minato-Ku, Tokyo, 105-0004, Japan
| | - Kazuhiko Koike
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi I-MARK Building, 2-6-2 Shimbashi, Minato-Ku, Tokyo, 105-0004, Japan
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Gearry R, Fukudo S, Barbara G, Kuhn-Sherlock B, Ansell J, Blatchford P, Eady S, Wallace A, Butts C, Cremon C, Barbaro MR, Pagano I, Okawa Y, Muratubaki T, Okamoto T, Fuda M, Endo Y, Kano M, Kanazawa M, Nakaya N, Nakaya K, Drummond L. Consumption of 2 Green Kiwifruits Daily Improves Constipation and Abdominal Comfort-Results of an International Multicenter Randomized Controlled Trial. Am J Gastroenterol 2023; 118:1058-1068. [PMID: 36537785 PMCID: PMC10226473 DOI: 10.14309/ajg.0000000000002124] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Accepted: 11/02/2022] [Indexed: 01/10/2023]
Abstract
INTRODUCTION Consumption of green kiwifruit is known to relieve constipation. Previous studies have also reported improvements in gastrointestinal (GI) comfort. We investigated the effect of consuming green kiwifruit on GI function and comfort. METHODS Participants included healthy controls (n = 63), patients with functional constipation (FC, n = 60), and patients with constipation-predominant irritable bowel syndrome (IBS-C, n = 61) randomly assigned to consume 2 green kiwifruits or psyllium (7.5 g) per day for 4 weeks, followed by a 4-week washout, and then the other treatment for 4 weeks. The primary outcome was the number of complete spontaneous bowel movements (CSBM) per week. Secondary outcomes included GI comfort which was measured using the GI symptom rating scale, a validated instrument. Data (intent-to-treat) were analyzed as difference from baseline using repeated measures analysis of variance suitable for AB/BA crossover design. RESULTS Consumption of green kiwifruit was associated with a clinically relevant increase of ≥ 1.5 CSBM per week (FC; 1.53, P < 0.0001, IBS-C; 1.73, P = 0.0003) and significantly improved measures of GI comfort (GI symptom rating scale total score) in constipated participants (FC, P < 0.0001; IBS-C, P < 0.0001). No significant adverse events were observed. DISCUSSION This study provides original evidence that the consumption of a fresh whole fruit has demonstrated clinically relevant increases in CSBM and improved measures of GI comfort in constipated populations. Green kiwifruits are a suitable dietary treatment for relief of constipation and associated GI comfort.
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Affiliation(s)
- Richard Gearry
- Department of Medicine, University of Otago, Christchurch, New Zealand
| | - Shin Fukudo
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
- Department of Psychosomatic Medicine, Tohoku University Hospital, Sendai, Japan
| | - Giovanni Barbara
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | | | | | | | - Sarah Eady
- The New Zealand Institute for Plant and Food Research Limited, Palmerston North and Christchurch, New Zealand
| | - Alison Wallace
- The New Zealand Institute for Plant and Food Research Limited, Palmerston North and Christchurch, New Zealand
| | - Christine Butts
- The New Zealand Institute for Plant and Food Research Limited, Palmerston North and Christchurch, New Zealand
| | - Cesare Cremon
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | | | - Isabella Pagano
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - Yohei Okawa
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Tomohiko Muratubaki
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Tomoko Okamoto
- Department of Nutrition, Sapporo University of Health Sciences, Sapporo, Japan
| | - Mikiko Fuda
- Department of Clinical Nutrition, Tohoku University Hospital, Sendai, Japan
| | - Yuka Endo
- Department of Psychosomatic Medicine, Tohoku University Hospital, Sendai, Japan
| | - Michiko Kano
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Motoyori Kanazawa
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
- Department of Psychosomatic Medicine, Tohoku University Hospital, Sendai, Japan
| | - Naoki Nakaya
- Department of Preventive Medicine and Epidemiology, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Kumi Nakaya
- Department of Preventive Medicine and Epidemiology, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Lynley Drummond
- Drummond Food Science Advisory Limited, Killinchy, Canterbury, New Zealand
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Fukudo S, Nakaya K, Muratsubaki T, Nakaya N, Hozawa A, Bangdiwala SI, Palsson OS, Sperber AD, Kanazawa M. Characteristics of disorders of gut-brain interaction in the Japanese population in the Rome Foundation Global Epidemiological Study. Neurogastroenterol Motil 2023; 35:e14581. [PMID: 37093785 DOI: 10.1111/nmo.14581] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 03/12/2023] [Accepted: 03/15/2023] [Indexed: 04/25/2023]
Abstract
BACKGROUND The aims were to use Japanese data from the Rome Foundation Global Epidemiological Study (RFGES) to test the hypotheses that severity of gastrointestinal (GI) symptoms and psychosocial disturbance are ordered as Rome IV irritable bowel syndrome (IBS) > Rome III IBS > DGBI, not IBS > others. METHODS Subjects were 2504 Japanese in the RFGES. We assessed DGBI/IBS diagnoses with Rome IV/III, IBS Symptom Severity Scale (IBS-SSS), Patient Health Questionnaire (PHQ) for anxiety/depression and non-GI somatic symptoms, PROMIS-10 for quality of life (QOL), Work Productivity and Activity Impairment (WPAI) Questionnaire, parts of Self-reported IBS Questionnaire (SIBSQ) for meal effect and stress effect, Food Frequency Questionnaire, and medication questions. KEY RESULTS The prevalence of Rome IV DGBI was as follows; IBS-C 0.5%, IBS-D 0.8%, IBS-M 0.8%, IBS-U 0.1%, unspecified functional bowel disorder 10.7%, postprandial distress syndrome 2.2%, and epigastric pain syndrome 0.3%. Rome III IBS prevalence; IBS-C 3.0%, IBS-D 3.1%, IBS-M 2.7%, and IBS-U 0.6%. Comparison among Rome IV IBS (n = 54), Rome III IBS (n = 197), other DGBI (n = 746), others (n = 1389) revealed significant order as Rome IV IBS > Rome III IBS > other DGBI > others in IBS-SSS, anxiety/depression, activity impairment, non-GI symptoms, physical QOL, mental QOL, exacerbated symptoms by meals and perceived stress (all p < 0.001). CONCLUSIONS & INFERENCES These findings support the study hypotheses. Data from Japan as a culturally homogenous country suggest Rome IV IBS is more severe and hence has more gut-brain psychobehavioral involvement than Rome III IBS.
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Affiliation(s)
- Shin Fukudo
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Kumi Nakaya
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Tomohiko Muratsubaki
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Naoki Nakaya
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Atsushi Hozawa
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Shrikant I Bangdiwala
- Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Ontario, Canada
- Population Health Research Institute, McMaster University, Hamilton, Ontario, Canada
| | - Olafur S Palsson
- Center for Functional Gastrointestinal and Motility Disorders, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Ami D Sperber
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Motoyori Kanazawa
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
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5
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Sperber AD, Bor S, Fang X, Bangdiwala SI, Drossman DA, Ghoshal UC, Simren M, Tack J, Whitehead WE, Dumitrascu DL, Fukudo S, Kellow J, Okeke E, Quigley EMM, Schmulson M, Whorwell P, Archampong T, Adibi P, Andresen V, Benninga MA, Bonaz B, Fernandez LB, Choi SC, Corazziari ES, Francisconi C, Hani A, Lazebnik L, Lee YY, Mulak A, Rahman MM, Santos J, Setshedi M, Syam AF, Vanner S, Wong RK, Lopez-Colombo A, Costa V, Dickman R, Kanazawa M, Keshteli AH, Khatun R, Maleki I, Poitras P, Pratap N, Stefanyuk O, Thomson S, Buyruk M, Unal N, Huang D, Song J, Hreinsson JP, Palsson OS. Face-to-face interviews versus Internet surveys: Comparison of two data collection methods in the Rome foundation global epidemiology study: Implications for population-based research. Neurogastroenterol Motil 2023; 35:e14583. [PMID: 37018412 DOI: 10.1111/nmo.14583] [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] [Received: 01/31/2023] [Revised: 03/13/2023] [Accepted: 03/18/2023] [Indexed: 04/07/2023]
Abstract
BACKGROUND AND AIMS The Rome Foundation Global Epidemiology Study (RFGES) assessed the prevalence, burden, and associated factors of Disorders of Gut-Brain Interaction (DGBI) in 33 countries around the world. Achieving worldwide sampling necessitated use of two different surveying methods: In-person household interviews (9 countries) and Internet surveys (26 countries). Two countries, China and Turkey, were surveyed with both methods. This paper examines the differences in the survey results with the two methods, as well as likely reasons for those differences. METHODS The two RFGES survey methods are described in detail, and differences in DGBI findings summarized for household versus Internet surveys globally, and in more detail for China and Turkey. Logistic regression analysis was used to elucidate factors contributing to these differences. RESULTS Overall, DGBI were only half as prevalent when assessed with household vs Internet surveys. Similar patterns of methodology-related DGBI differences were seen within both China and Turkey, but prevalence differences between the survey methods were dramatically larger in Turkey. No clear reasons for outcome differences by survey method were identified, although greater relative reduction in bowel and anorectal versus upper gastrointestinal disorders when household versus Internet surveying was used suggests an inhibiting influence of social sensitivity. CONCLUSIONS The findings strongly indicate that besides affecting data quality, manpower needs and data collection time and costs, the choice of survey method is a substantial determinant of symptom reporting and DGBI prevalence outcomes. This has important implications for future DGBI research and epidemiological research more broadly.
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Affiliation(s)
- Ami D Sperber
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Serhat Bor
- Ege University School of Medicine, Division of Gastroenterology, Bornova, Izmir, Turkey
| | - Xuicai Fang
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shrikant I Bangdiwala
- Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Ontario, Canada
- Population Health Research Institute, McMaster University, Hamilton, Ontario, Canada
| | - Douglas A Drossman
- Center for Functional GI & Motility Disorders, University of North Carolina, Center for Education and Practice of Biopsychosocial Care, and Drossman Gastroenterology, Chapel Hill, North Carolina, USA
| | - Uday C Ghoshal
- Department of Gastroenterology, Sanjay Gandhi Postgraduate Institute of Medical Sciences (SGPGI), Lucknow, India
| | - Magnus Simren
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Center for Functional GI and Motility Disorders, University of North Carolina-Chapel Hill, Chapel Hill, North Carolina, USA
| | - Jan Tack
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Translational Research Center for Gastrointestinal Disorders (TARGID), University of Leuven, Leuven, Belgium
| | - William E Whitehead
- Center for Functional GI and Motility Disorders, University of North Carolina-Chapel Hill, Chapel Hill, North Carolina, USA
| | - Dan L Dumitrascu
- Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Shin Fukudo
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - John Kellow
- Discipline of Medicine, Northern Clinical School, University of Sydney, Sydney, Australia
| | - Edith Okeke
- Department of Medicine, University of Jos, Jos University Teaching Hospital, Jos, Nigeria
| | - Eamonn M M Quigley
- Lynda K and David M Underwood Center for Digestive Disorder, Division of Gastroenterology and Hepatology, Houston Methodist Hospital and Weill Cornell Medical College, Houston, Texas, USA
| | - Max Schmulson
- Laboratory of Liver, Pancreas and Motility (HIPAM), Unit of Research in Experimental Medicine, Faculty of Medicine, Universidad Nacional Autónoma de Mexico (UNAM), Mexico City, Mexico
| | - Peter Whorwell
- Neurogastroenterology Unit, Manchester University NHS Foundation Trust, Wythenshawe Hospital, Manchester, UK
| | - Timothy Archampong
- Department of Medicine, University of Ghana School of Medicine and Dentistry, Accra, Ghana
| | - Payman Adibi
- Gastroenterology and Hepatology Research Center, Department of Internal Medicine, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Viola Andresen
- Department of Medicine, Israelitic Hospital, Hamburg, Germany
| | - Marc A Benninga
- Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Pediatric Gastroenterology, Amsterdam, The Netherlands
| | - Bruno Bonaz
- Service d'Hépato-Gastroentérologie, CHU Grenoble Alpes, Grenoble, France
| | | | - Suck Chei Choi
- Department of Gastroenterology, School of Medicine, Wonkwang University, Iksan, South Korea
| | | | - Carlos Francisconi
- Department of Internal Medicine, Universidade Federal do Rio Grande do Sul, Gastroenterology Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Albis Hani
- Gastroenterology Unit, Hospital Universitario San Ignacio, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Leonid Lazebnik
- Department of Therapy and Preventive Medicine, Faculty of Internal Medicine, Moscow State University of Medicine and Dentistry, Moscow, Russia
| | - Yeong Yeh Lee
- School of Medical Sciences, Universiti Sains Malaysia, Kota Bharu, Kelantan, Malaysia
| | - Agata Mulak
- Department of Gastroenterology and Hepatology, Wroclaw Medical University, Wroclaw, Poland
| | | | - Javier Santos
- Department of Gastroenterology, University Hospital Vall d'Hebron, Autonomous University of Barcelona & Neuro-Inmuno-Gastroenterology Lab, Vall d'Hebron Research Institute, Barcelona, Spain & Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERHED), Instituto de Salud Carlos III, Madrid, Spain
| | - Mashiko Setshedi
- Division of Gastroenterology, Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Ari Fahrial Syam
- Division of Gastroenterology, Department of Internal Medicine, Faculty of Medicine, Universitas Indonesia/Cipto Mangunkusumo Hospital, Jakarta, Indonesia
| | - Stephen Vanner
- Gastrointestinal Diseases Research Unit, Kingston Health Science Centre, Queen's University, Kingston, Ontario, Canada
| | - Reuben K Wong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore City, Singapore
| | | | - Valeria Costa
- Gastroenterology Unit, Hospital Universitario San Ignacio, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Ram Dickman
- Division of Gastroenterology, Rabin Medical Center, Sackler School of Medicine, Tel-Aviv, Israel
| | - Motoyori Kanazawa
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Ammar Hassanzadeh Keshteli
- CEGIIR-Division of Gastroenterology, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Rutaba Khatun
- Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Ontario, Canada
| | - Iradj Maleki
- Gut and Liver Research Center, Department of Internal Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | | | | | - Oksana Stefanyuk
- Department of Therapy and Preventive Medicine, Faculty of Internal Medicine, Moscow State University of Medicine and Dentistry, Moscow, Russia
| | - Sandie Thomson
- Division of Gastroenterology, Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Murat Buyruk
- Ege University School of Medicine, Division of Gastroenterology, Bornova, Izmir, Turkey
| | - Nalan Unal
- Ege University School of Medicine, Division of Gastroenterology, Bornova, Izmir, Turkey
| | - Dan Huang
- Department of Gastroenterology, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Jun Song
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Johann P Hreinsson
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Olafur S Palsson
- Center for Functional GI and Motility Disorders, University of North Carolina-Chapel Hill, Chapel Hill, North Carolina, USA
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Hreinsson JP, Wong RKM, Tack J, Whorwell P, Benninga MA, Andresen V, Bonaz B, Choi SC, Corazziari ES, Santos J, Fukudo S, Kanazawa M, Fang X, Bangdiwala SI, Sperber AD, Palsson OS, Simrén M. A comparative study of disorders of gut-brain interaction in Western Europe and Asia based on the Rome foundation global epidemiology study. Neurogastroenterol Motil 2023; 35:e14566. [PMID: 36961016 DOI: 10.1111/nmo.14566] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 03/07/2023] [Accepted: 03/13/2023] [Indexed: 03/25/2023]
Abstract
OBJECTIVE Many studies have been published on disorders of the gut-brain interaction (DGBI) in Asia and Western Europe, but no previous study has directly assessed the difference between the two regions. The aim was to compare the prevalence of DGBI in Asia and Western Europe. METHODS We used data collected in a population-based Internet survey, the Rome Foundation Global Epidemiology Study, from countries in Western Europe (Belgium, France, Germany, Netherlands, Italy, Spain, Sweden, and the United Kingdom) and Asia (China, Japan, South Korea, and Singapore). We assessed DGBI diagnoses (Rome IV Adult Diagnostic Questionnaire), anxiety/depression (Patient Health Questionnaire-4, PHQ-4), non-GI somatic symptoms (PHQ-12), and access to and personal costs of doctor visits. RESULTS The study included 9487 subjects in Asia and 16,314 in Western Europe. Overall, 38.0% had at least one DGBI; younger age, female sex, and higher scores on PHQ4 and PHQ12 were all associated with DGBI. The prevalence of having at least one DGBI was higher in Western Europe than in Asia (39.1% vs 36.1%, OR 1.14 [95% CI 1.08-1.20]). This difference was also observed for DGBI by anatomical regions, most prominently esophageal DGBI (OR 1.67 [1.48-1.88]). After adjustment, the difference in DGBI prevalence diminished and psychological (PHQ-4) and non-GI somatic symptoms (PHQ-12) had the greatest effect on the odds ratio estimates. CONCLUSION The prevalence of DGBI is generally higher in Western Europe compared to Asia. A considerable portion of the observed difference in prevalence rates seems to be explained by more severe psychological and non-GI somatic symptoms in Western Europe.
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Affiliation(s)
- Johann P Hreinsson
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Reuben K M Wong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Jan Tack
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Translational Research Center for Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism (CHROMETA), KU Leuven, Leuven, Belgium
| | - Peter Whorwell
- University of Manchester, Neurogastroenterology Unit, Wythenshawe Hospital, Manchester, UK
| | - Marc A Benninga
- Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Pediatric Gastroenterology, Hepatology and Nutrition, Amsterdam, The Netherlands
| | - Viola Andresen
- Department of Medicine, Israelitic Hospital, Hamburg, Germany
| | - Bruno Bonaz
- Division of Hepato-Gastroenterology, University Hospital Grenoble Alpes, Grenoble, France
| | - Suck Chei Choi
- Department of Gastroenterology, Wonkwang University, School of Medicine, Iksan, South Korea
| | - Enrico S Corazziari
- Department of Gastroenterology. IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Javier Santos
- Laboratory of Neuro-Immuno-Gastroenterology, Digestive System Research Unit, Vall d'Hebron Institut de Recerca, Barcelona, Spain
- Department of Gastroenterology, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERHED), Instituto de Salud Carlos III, Madrid, Spain
| | - Shin Fukudo
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Motoyori Kanazawa
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Xuicai Fang
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shrikant I Bangdiwala
- Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Ontario, Canada
- Population Health Research Institute, McMaster University, Hamilton, Ontario, Canada
| | - Ami D Sperber
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Olafur S Palsson
- Center for Functional Gastrointestinal and Motility Disorders, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Magnus Simrén
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Center for Functional Gastrointestinal and Motility Disorders, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
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Hasegawa R, Saito-Nakaya K, Gu L, Kanazawa M, Fukudo S. Maternal separation and TNBS-induced gut inflammation synergistically alter the sexually differentiated stress response in rats. Biopsychosoc Med 2023; 17:7. [PMID: 36841797 PMCID: PMC9960214 DOI: 10.1186/s13030-022-00258-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 12/12/2022] [Indexed: 02/27/2023] Open
Abstract
BACKGROUND Neonatal maternal separation (MS) has been used to model long-lasting changes in behavior caused by neuroplastic changes associated with exposure to early-life stress. Earlier studies showed that transient gut inflammation can influence the development of irritable bowel syndrome (IBS). A prevailing paradigm of the etiology of IBS is that transient noxious events lead to long-lasting sensitization of the neural pain circuit, despite complete resolution of the initiating event. This study characterizes the changes in behaviors and neuroendocrine parameters after MS and early-phase trinitrobenzene sulfonic acid (TNBS)-induced colitis. We tested the hypothesis that MS and gut inflammation synergistically induce (1) hyperactivity in male rats and anxiety-like behaviors in female rats and (2) activation of the HPA axis in female rats and deactivation of the HPA axis in male rats after colorectal distention (CRD). METHODS Male and female rat pups were separated from their dams for 180 min daily from postnatal day (PND) 2 to PND 14 (MS). Early-phase colitis was induced by colorectal administration with TNBS on PND 8. The elevated plus-maze test was performed at 7 weeks. Tonic CRD was performed at 60 mmHg for 15 min at 8 weeks. Plasma ACTH and serum corticosterone were measured at baseline or after the CRD. Analysis of variance was performed for comparison among controls, TNBS, MS, and MS + TNBS. RESULTS In male rats, the time spent in open arms significantly differed among the groups (p < 0.005). The time spent in open arms in male MS + TNBS rats was significantly higher than that of controls (p < 0.009) or TNBS rats (p < 0.031, post hoc test). Female rats showed no difference in the time spent in open arms among the groups. MS and gut inflammation induced an increase in plasma ACTH in female rats but not in male rats at baseline. CONCLUSIONS These findings suggest that MS and gut inflammation synergistically induce hyperactive behavior or exaggerated hypothalamic-pituitary-adrenal axis function depending on sex.
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Affiliation(s)
- Ryoko Hasegawa
- grid.69566.3a0000 0001 2248 6943Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, 2-1 Seiryo, Aoba, Sendai 980-8575 Japan
| | - Kumi Saito-Nakaya
- grid.69566.3a0000 0001 2248 6943Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, 2-1 Seiryo, Aoba, Sendai 980-8575 Japan ,grid.69566.3a0000 0001 2248 6943Tohoku Medical Megabank Organization, Tohoku University, 2-1 Seiryo, Aoba, Sendai 980-8575 Japan
| | - Li Gu
- grid.69566.3a0000 0001 2248 6943Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, 2-1 Seiryo, Aoba, Sendai 980-8575 Japan ,grid.410560.60000 0004 1760 3078Department of Psychology, School of Humanities and Management, Guangdong Medical University, Dongguan, China
| | - Motoyori Kanazawa
- grid.69566.3a0000 0001 2248 6943Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, 2-1 Seiryo, Aoba, Sendai 980-8575 Japan
| | - Shin Fukudo
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, 2-1 Seiryo, Aoba, Sendai, 980-8575, Japan.
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8
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Koseki T, Muratsubaki T, Tsushima H, Morinaga Y, Oohashi T, Imafuku M, Suzuki Y, Kanazawa M, Fukudo S. Impact of mindfulness tendency and physical activity on brain-gut interactions. J Gastroenterol 2023; 58:158-170. [PMID: 36629949 PMCID: PMC9838411 DOI: 10.1007/s00535-022-01938-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 11/30/2022] [Indexed: 01/12/2023]
Abstract
BACKGROUND Irritable bowel syndrome (IBS) is a disorder of brain-gut interactions characterized by abdominal pain and bowel dysfunction. Exercise and mindfulness have been reported to be effective on IBS, but there has been no study of their interaction. In this study, we hypothesized that exercise and mindfulness interactively affect the severity of IBS symptoms. METHODS Subjects were 703 adolescents with 590 women and 113 men. Their IBS status was evaluated with Rome III Diagnostic Questionnaire and IBS Severity Index (IBS-SI). They also fulfilled past exercise experience, athletic performance and exercise enthusiasm, International Physical Activity Questionnaire (IPAQ), Mindful Attention Awareness Scale (MAAS), Kessler 6 Scale (K6), and Perceived Stress Scale (PSS). Statistical analysis was performed using SPSS v25. RESULTS In this population, 184 (158 women and 26 men, 14.1%) subjects had Rome III IBS symptoms. IBS subjects scored significantly less in exercise enthusiasm at high school (p = 0.017) and MAAS (p < 0.001) and significantly more K6 (p < 0.001) and PSS (p < 0.001) than non-IBS. The two-way ANOVA on IBS-SI showed a significant main effect of MAAS (p < 0.001) and interaction between MAAS and IPAQ (p = 0.008). CONCLUSION It is suggested that mindfulness per se decreases IBS severity, but that mindfulness and physical activity interactively affect the severity. Further studies on how to design interventional trials for IBS patients with mindfulness and physical exercise are warranted.
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Affiliation(s)
- Tomonori Koseki
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, 2-1 Seiryo-Machi, Aoba-Ku, Sendai, 980-8575, Japan. .,Department of Rehabilitation Science, Division of Physical Therapy, Sendai Seiyo Gakuin College, 4-3-55 Nagamachi Taihakuku, Sendai, 982-0011, Japan.
| | - Tomohiko Muratsubaki
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, 2-1 Seiryo-Machi, Aoba-Ku, Sendai, 980-8575 Japan
| | - Hiromichi Tsushima
- Molecular and Cellular Aging, Tokyo Metropolitan Institute of Gerontology, 35-2 Sakae-Cho, Itabashi-Ku, Tokyo, 173-0015 Japan
| | - Yu Morinaga
- Department of Rehabilitation Science, Division of Physical Therapy, Sendai Seiyo Gakuin College, 4-3-55 Nagamachi Taihakuku, Sendai, 982-0011 Japan
| | - Takako Oohashi
- Department of Rehabilitation Science, Division of Physical Therapy, Sendai Seiyo Gakuin College, 4-3-55 Nagamachi Taihakuku, Sendai, 982-0011 Japan
| | - Masahiro Imafuku
- Department of Early Childhood Education and Care, Faculty of Education, Musashino University, 1-1-20 Shinmachi, Nishi-Tokyo, Tokyo, 202-8585 Japan
| | - Yuichi Suzuki
- Department of Rehabilitation Science, Division of Physical Therapy, Sendai Seiyo Gakuin College, 4-3-55 Nagamachi Taihakuku, Sendai, 982-0011 Japan
| | - Motoyori Kanazawa
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, 2-1 Seiryo-Machi, Aoba-Ku, Sendai, 980-8575 Japan
| | - Shin Fukudo
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, 2-1 Seiryo-Machi, Aoba-Ku, Sendai, 980-8575 Japan
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9
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Hidaka R, Masuda Y, Ogawa K, Tanaka T, Kanazawa M, Suzuki K, Stading M, Iijima K, Matsuo K. Impact of the Comprehensive Awareness Modification of Mouth, Chewing and Meal (CAMCAM) Program on the Attitude and Behavior Towards Oral Health and Eating Habits as Well as the Condition of Oral Frailty: A Pilot Study. J Nutr Health Aging 2023; 27:340-347. [PMID: 37248757 DOI: 10.1007/s12603-023-1913-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 03/29/2023] [Indexed: 05/31/2023]
Abstract
OBJECTIVES Preserving sufficient oral function and maintaining aadequate nutrition are essential for preventing physical frailty and the following long-term care. We recently developed the 6-month Comprehensive Awareness Modification of Mouth, Chewing And Meal (CAMCAM) program, in which participants gather monthly to learn about oral health and nutrition while eating a textured lunch together. This study examined whether the CAMCAM program could improve attitude and behavior towards oral health, mastication, and diet as well as ameliorate oral frailty in community-dwelling older adults. DESIGN Single-arm pre-post comparison study. SETTING AND PARTICIPANTS A total of 271 community-dwelling adults (72.3 ± 5.7 years of age; 159 women [58.7%]) in 4 Japanese municipalities were recruited, of which 249 participants (92%) were assessed at the final evaluation. INTERVENTION Participants gathered once a month at community centers to learn about oral health and nutrition while eating a "munchy" textured lunch containing proper nutrition. MEASUREMENTS Oral frailty, frailty, and eating behavior were evaluated with the Oral Frailty Index-8 (OFI-8), Kihon checklist (KCL), and CAMCAM checklist, respectively. Participants were divided into Oral frailty (OF) and Robust groups according to OFI-8 scores. The differences in KCL and CAMCAM checklist results between the OF and Robust groups were statistically tested along with changes in scores after the program. RESULTS KCL and CAMCAM checklist scores were significantly lower in the OF group at the initial assessment. OFI-8 and KCL findings were significantly improved in the OF group after completing the program (all P <0.05). Regarding the CAMCAM checklist, awareness of chewing improved significantly in the Robust group (P=0.009), with a similar tendency in the OF group (P=0.080). CONCLUSION The findings of this pilot study suggest that the CAMCAM program may improve both oral and systemic frailty in addition to attitudes towards chewing, oral health, and meals, especially in individuals with oral frailty. The CAMCAM program merits expansion as a community-based frailty prevention program.
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Affiliation(s)
- R Hidaka
- Koichiro Matsuo, Department of Oral Health Sciences for Community Welfare, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo, Tokyo 113-8549, Japan, Phone: +81-3-5803-4545, E-mail:
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10
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Kanazawa M, Fukudo S. [Diagnosis and pathophysiology of irritable bowel syndrome]. Nihon Shokakibyo Gakkai Zasshi 2023; 120:209-217. [PMID: 36908139 DOI: 10.11405/nisshoshi.120.209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
Affiliation(s)
- Motoyori Kanazawa
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine
| | - Shin Fukudo
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine
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11
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Nakamura A, Kagaya Y, Saito H, Kanazawa M, Sato K, Miura M, Kondo M, Endo H. Efficacy and safety of pemafibrate versus bezafibrate in coronary artery disease patients receiving statin treatment: a randomized, open-label, cross-over study. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Fibrates activate peroxisome proliferator-activated receptor (PPAR)-α which is associated with lipid metabolism. Bezafibrate is a non-selective PPAR-α agonist, whereas pemafibrate has been developed as a higher selective PPAR-α agonist.
Objective
The efficacy and safety of pemafibrate for 24-week in patients with dyslipidemia was examined in comparison with bezafibrate.
Methods
Sixty patients with hypertriglyceridemia (fasting triglyceride (TG) level of ≥150 mg/dL) were treated with pemafibrate of 0.2 mg/day or bezafibrate of 400 mg/day for 24-week in a randomized cross-over study. Percent change from baseline in TG levels was the primary endpoint, and that in HDL-C and apolipoprotein A-I (Apo A-I) levels was the secondary endpoints.
Results
A significantly greater reduction in TG percent change was observed in pemafibrate than in bezafibrate (−46.1% vs. −34.7%, p<0.001). There was no significant difference in HDL-C percent change between pemafibrate and bezafibrate (18.4% vs. 14.0%, p=0.067), whereas Apo A-I percent change was significantly greater in pemafibrate than in bezafibrate (9.2% vs. 5.7%, p=0.018). Pemafibrate and bezafibrate significantly decreased alanine aminotransferase (ALT) and gamma-glutamyltransferase (γ-GT) levels, and pemafibrate showed a greater reduction than bezafibrate (ALT: −21.9% vs. −10.6%, p=0.048; γ-GT: −43.5% vs. −33.1%, p=0.025). Creatinine levels significantly increased in both treatments (both p<0.001), however, creatinine percent change was significantly smaller in pemafibrate than in bezafibrate (5.72% vs. 15.5%, p<0.001). There was no difference in frequency of adverse event (AE) or serious AE between two treatments, but frequency of creatinine elevation (≥0.5 mg/d and/or 25%) was significantly higher in bezafibrate than in pemafibrate (16/60 vs. 3/60, p=0.004).
Conclusion
As compared with bezafibrate, pemafibrate is more effective to reduce TG levels and to elevate Apo A-I levels, and it is safer in terms of liver and renal function.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- A Nakamura
- Iwate Prefectural Central Hospital , Morioka , Japan
| | - Y Kagaya
- Iwate Prefectural Central Hospital , Morioka , Japan
| | - H Saito
- Iwate Prefectural Central Hospital , Morioka , Japan
| | - M Kanazawa
- Iwate Prefectural Central Hospital , Morioka , Japan
| | - K Sato
- Iwate Prefectural Central Hospital , Morioka , Japan
| | - M Miura
- Iwate Prefectural Central Hospital , Morioka , Japan
| | - M Kondo
- Iwate Prefectural Central Hospital , Morioka , Japan
| | - H Endo
- Iwate Prefectural Central Hospital , Morioka , Japan
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12
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Funaki T, Kanazawa M, Takahashi S, Seki T, Iguchi A, Kagaya Y, Sato K, Saito H, Kondo M, Miura M, Kawatsu S, Endo H, Oda K, Nakamura A. The orthostatic hypotension in patients with Stanford type A aortic dissection after surgery. Eur J Prev Cardiol 2022. [DOI: 10.1093/eurjpc/zwac056.070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background
Orthostatic hypotension (OH) is sometimes observed during cardiac rehabilitation in patients with surgery for aortic dissection. However, little is known about the primary determinant of OH and influence of surgical range on incidence of OH.
Purpose
The aim of this study was to elucidate the incidence of OH in patients with surgery for aortic dissection, and compare it between the patients with ascending aortic replacement surgery (ascending group) and those with ascending aorta and hemiarch or total arch replacement surgery (arch group).
Methods
We analyzed 59 patients who underwent emergent surgery due to Stanford type A aortic dissection from January 2014 to March 2018, and compared the incidence of OH between ascending group (n = 28, age 69.8 ± 11.3 years) and arch group (n = 31, age 64.1 ± 13.0 years).
Results
The incidence of OH in total patients was 30.5%. There were no significant differences in patient characteristics including body tall, body weight, antihypertensive use and progress of rehabilitation between 2 groups. The arch group showed a significant higher incidence of OH as compared with ascending group (arch group: 46.4% vs. ascending group: 16.1%, p = 0.03). Moreover, the patients who occurred OH were significantly taller than those who did not occur OH.
Conclusions
OH was observed in about one third of patients with surgery for aortic dissection and it showed a close relationship with patient’s height and the range repaired by surgical operation. More careful cardiac rehabilitation is needed for tall patients with large area replacement of aorta.
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Affiliation(s)
- T Funaki
- Iwate Prefectural Central Hospital, Department of Cardiology, Morioka, Japan
| | - M Kanazawa
- Iwate Prefectural Central Hospital, Department of Cardiology, Morioka, Japan
| | - S Takahashi
- Iwate Prefectural Central Hospital, Department of Rehabilitation, Morioka, Japan
| | - T Seki
- Iwate Prefectural Central Hospital, Department of Rehabilitation, Morioka, Japan
| | - A Iguchi
- Iwate Prefectural Central Hospital, Department of Rehabilitation, Morioka, Japan
| | - Y Kagaya
- Iwate Prefectural Central Hospital, Department of Cardiology, Morioka, Japan
| | - K Sato
- Iwate Prefectural Central Hospital, Department of Cardiology, Morioka, Japan
| | - H Saito
- Iwate Prefectural Central Hospital, Department of Cardiology, Morioka, Japan
| | - M Kondo
- Iwate Prefectural Central Hospital, Department of Cardiology, Morioka, Japan
| | - M Miura
- Iwate Prefectural Central Hospital, Department of Cardiology, Morioka, Japan
| | - S Kawatsu
- Iwate Prefectural Central Hospital, Department of Cardiovascular surgery, Morioka, Japan
| | - H Endo
- Iwate Prefectural Central Hospital, Department of Cardiology, Morioka, Japan
| | - K Oda
- Iwate Prefectural Central Hospital, Department of Cardiovascular surgery, Morioka, Japan
| | - A Nakamura
- Iwate Prefectural Central Hospital, Department of Cardiology, Morioka, Japan
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Abstract
Although histamine plays a major role in animal models of stress-related disorders, human neuroimaging data are sparse. Histamine H1 receptors in the human brain were first imaged by Professor Kazuhiko Yanai in 1992 by using 11C-doxepin, a potent ligand of H1 receptors, and positron emission tomography (PET). Subsequent work revealed that H1 receptors are reduced in the prefrontal and anterior cingulate cortices in patients with major depressive disorders. A sex difference in H1 receptor binding in the brain has also been found, with women exhibiting more abundant H1 receptor binding than men. Moreover, female patients with anorexia nervosa show higher H1 receptor binding in the amygdala and lentiform nucleus. These studies also found an inverse correlation of depression scores with H1 receptor binding. Histamine is considered to play a major role in the pathophysiology of irritable bowel syndrome (IBS), a representative disorder of brain-gut interactions. Along these lines, hypnotic suggestion dramatically changes the waveforms of viscerosensory cerebral evoked potentials in response to electrical rectal stimulation and these changes are modified by the administration of H1 antagonist. The direction of the H1 antagonist-induced changes in the viscerosensory cerebral evoked potentials differs between IBS patients and healthy controls. Thus, histamine likely plays an important role in stress-related disorders. Further histamine brain imaging studies of humans are warranted.
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Affiliation(s)
- Shin Fukudo
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan.
| | - Michiko Kano
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yasuhiro Sato
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Tomohiko Muratsubaki
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Motoyori Kanazawa
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Manabu Tashiro
- Division of Nuclear Medicine, Cyclotron Radioisotope Center (CYRIC), Tohoku University, Sendai, Japan
| | - Kazuhiko Yanai
- Department of Pharmacology, Tohoku University Graduate School of Medicine, Sendai, Japan
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14
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Aizawa Y, Morishita J, Kano M, Kanazawa M, Fukudo S. Modification of rectal function and emotion by repetitive transcranial magnetic stimulation in humans. Neurosci Res 2021; 168:54-63. [PMID: 34062217 DOI: 10.1016/j.neures.2021.05.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 05/26/2021] [Accepted: 05/27/2021] [Indexed: 01/02/2023]
Abstract
Gut microbiota may affect function of the dorsolateral prefrontal cortex (DLPFC). However, there have been a few studies on modification of brain-gut interactions with repetitive transcranial magnetic stimulation (rTMS) to the DLPFC. We hypothesized that stimulation of the right or left DPFC by rTMS modifies the brain-gut interactions in humans. Subjects were 25 healthy males. Viscerosensory evoked potential (VEP) with sham (0 mA) or actual (30 mA) electrical stimulation (ES) of the rectum was taken after sham, low frequency rTMS at 0.1 Hz, and high frequency rTMS at 10 Hz to the right or left DLPFC. Rectal tone was measured with a rectal barostat. Visceral perception and emotion were analyzed using ordinates scale, rectal barostat, and viscerosensory evoked potential. Low frequency rTMS to the right DLPFC significantly reduced the visceral sensation and emotion composite score evoked by ES at 30 mA (p < 0.05). Plasma ACTH was significantly increased by high frequency rTMS to the right or left DLPFC (p < 0.05). Rectal fine contractions were significantly induced by low frequency rTMS to the right or left DLPFC and high frequency rTMS to the right DLPFC (p < 0.05). These results suggest that stimulation of the right or left DPFC by rTMS modifies the brain-gut interactions in humans.
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Affiliation(s)
- Yuuichi Aizawa
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, 2-1 Seiryo, Aoba, Sendai, 980-8575, Japan
| | - Joe Morishita
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, 2-1 Seiryo, Aoba, Sendai, 980-8575, Japan
| | - Michiko Kano
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, 2-1 Seiryo, Aoba, Sendai, 980-8575, Japan
| | - Motoyori Kanazawa
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, 2-1 Seiryo, Aoba, Sendai, 980-8575, Japan
| | - Shin Fukudo
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, 2-1 Seiryo, Aoba, Sendai, 980-8575, Japan.
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15
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Tsushima H, Zhang Y, Muratsubaki T, Kanazawa M, Fukudo S. Oxytocin antagonist induced visceral pain and corticotropin-releasing hormone neuronal activation in the central nucleus of the amygdala during colorectal distention in mice. Neurosci Res 2021; 168:41-53. [PMID: 33932549 DOI: 10.1016/j.neures.2021.04.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 04/22/2021] [Accepted: 04/23/2021] [Indexed: 12/19/2022]
Abstract
Activation of neurons containing oxytocin and corticotropin-releasing hormone (CRH) in the paraventricular nucleus (PVN) of the hypothalamus, the anterior cingulate cortex (ACC), and the central nucleus of the amygdala (CeA) during colorectal distention (CRD) is likely to play a crucial role in animal models of irritable bowel syndrome (IBS). Earlier studies in rodents showed that the microbiome is involved in social behavior via oxytocin expression in the brain. However, the detailed mechanism of visceral sensation and oxytocin is largely unknown. We tested the following hypotheses: (1) that oxytocin neurons in the PVN are activated by CRD, and (2) that the activation of oxytocin neurons by CRD is related to anxiety-like behavior, visceral perception, and an activation of CRH CeA neurons or ACC neurons. Oxytocin antagonist caused visceral hypersensitivity and anxiety-like behavior. In the PVN, oxytocin neurons were activated by CRD. Noxious CRD activated the CeA, basolateral nucleus of the amygdala (BLA), and ACC. High-dose oxytocin antagonist suppressed ACC activity and activated CRH CeA neurons. These results support our hypotheses. Oxytocin likely regulates CRH CeA neurons in an inhibitory manner and the ACC in an excitatory manner. Further research into the interaction of oxytocin and CRH in visceral pain and anxiety is warranted.
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Affiliation(s)
- Hiromichi Tsushima
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yanli Zhang
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan; Department of Gastroenterology, China-Japan Friendship Hospital, Beijing, China
| | - Tomohiko Muratsubaki
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Motoyori Kanazawa
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan; Department of Psychosomatic Medicine, Tohoku University Hospital, Sendai, Japan
| | - Shin Fukudo
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan; Department of Psychosomatic Medicine, Tohoku University Hospital, Sendai, Japan.
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Yagihashi M, Kano M, Muratsubaki T, Morishita J, Kono K, Tanaka Y, Kanazawa M, Fukudo S. Concordant pattern of the HPA axis response to visceral stimulation and CRH administration. Neurosci Res 2021; 168:32-40. [PMID: 33785411 DOI: 10.1016/j.neures.2021.03.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 03/15/2021] [Accepted: 03/17/2021] [Indexed: 12/30/2022]
Abstract
The physiological and psychological mechanisms explaining the individual variability in the stress response are poorly understood. We tested the hypothesis that hypothalamic-pituitary- adrenal (HPA) axis responses to colorectal stimulation affect HPA axis reactivity to corticotropin-releasing hormone (CRH), the visceral pain threshold, and perceived stress. We examined 31 healthy volunteers and 27 individuals with irritable bowel syndrome. According to the ACTH response to colorectal stimulation, the participants were classified into three groups: flattened, decreased, and increased. We found significant differences in the abdominal pain threshold, discomfort threshold, and sensitivity to anxiety among the groups. There were significant differences in the ACTH change and peak level after CRH administration among the groups. The area under the curve of the cortisol response to CRH was significantly different among the groups. The increased group showed a higher basal ACTH level, earlier peak level in the CRH administration test, and higher stress rating during the experiment. The increased group had an exaggerated psychological and physiological stress response, whereas the decreased group had a higher anticipatory endocrine response, stress, and sensitivity to anxiety. Further studies are needed to determine factors including gut microbiota on the individual difference in HPA response.
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Affiliation(s)
- Mao Yagihashi
- Advanced Graduate Program for Future Medicine and Health Care, Tohoku University Graduate School of Medicine, 2-1 Seiryo-cho, Aoba-ku, Sendai, Miyagi, 980-8575, Japan; Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, 2-1 Seiryo-cho, Aoba-ku, Sendai, Miyagi, 980-8575, Japan.
| | - Michiko Kano
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, 2-1 Seiryo-cho, Aoba-ku, Sendai, Miyagi, 980-8575, Japan; Deparment of Psychosomatic Medicine, Tohoku University Hospital, 1-1 Seiryo-cho, Aoba-ku, Sendai, Miyagi, 980-8574, Japan.
| | - Tomohiko Muratsubaki
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, 2-1 Seiryo-cho, Aoba-ku, Sendai, Miyagi, 980-8575, Japan; Deparment of Psychosomatic Medicine, Tohoku University Hospital, 1-1 Seiryo-cho, Aoba-ku, Sendai, Miyagi, 980-8574, Japan.
| | - Joe Morishita
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, 2-1 Seiryo-cho, Aoba-ku, Sendai, Miyagi, 980-8575, Japan.
| | - Keishi Kono
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, 2-1 Seiryo-cho, Aoba-ku, Sendai, Miyagi, 980-8575, Japan.
| | - Yukari Tanaka
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, 2-1 Seiryo-cho, Aoba-ku, Sendai, Miyagi, 980-8575, Japan.
| | - Motoyori Kanazawa
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, 2-1 Seiryo-cho, Aoba-ku, Sendai, Miyagi, 980-8575, Japan; Deparment of Psychosomatic Medicine, Tohoku University Hospital, 1-1 Seiryo-cho, Aoba-ku, Sendai, Miyagi, 980-8574, Japan.
| | - Shin Fukudo
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, 2-1 Seiryo-cho, Aoba-ku, Sendai, Miyagi, 980-8575, Japan; Deparment of Psychosomatic Medicine, Tohoku University Hospital, 1-1 Seiryo-cho, Aoba-ku, Sendai, Miyagi, 980-8574, Japan.
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17
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Fukudo S, Okumura T, Inamori M, Okuyama Y, Kanazawa M, Kamiya T, Sato K, Shiotani A, Naito Y, Fujikawa Y, Hokari R, Masaoka T, Fujimoto K, Kaneko H, Torii A, Matsueda K, Miwa H, Enomoto N, Shimosegawa T, Koike K. Evidence-based clinical practice guidelines for irritable bowel syndrome 2020. J Gastroenterol 2021; 56:193-217. [PMID: 33538894 PMCID: PMC7932982 DOI: 10.1007/s00535-020-01746-z] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Accepted: 10/27/2020] [Indexed: 02/06/2023]
Abstract
Managing irritable bowel syndrome (IBS) has attracted international attention because single-agent therapy rarely relieves bothersome symptoms for all patients. The Japanese Society of Gastroenterology (JSGE) published the first edition of evidence-based clinical practice guidelines for IBS in 2015. Much more evidence has accumulated since then, and new pharmacological agents and non-pharmacological methods have been developed. Here, we report the second edition of the JSGE-IBS guidelines comprising 41 questions including 12 background questions on epidemiology, pathophysiology, and diagnostic criteria, 26 clinical questions on diagnosis and treatment, and 3 questions on future research. For each question, statements with or without recommendations and/or evidence level are given and updated diagnostic and therapeutic algorithms are provided based on new evidence. Algorithms for diagnosis are requisite for patients with chronic abdominal pain or associated symptoms and/or abnormal bowel movement. Colonoscopy is indicated for patients with one or more alarm symptoms/signs, risk factors, and/or abnormal routine examination results. The diagnosis is based on the Rome IV criteria. Step 1 therapy consists of diet therapy, behavioral modification, and gut-targeted pharmacotherapy for 4 weeks. For non-responders, management proceeds to step 2 therapy, which includes a combination of different mechanistic gut-targeted agents and/or psychopharmacological agents and basic psychotherapy for 4 weeks. Step 3 therapy is for non-responders to step 2 and comprises a combination of gut-targeted pharmacotherapy, psychopharmacological treatments, and/or specific psychotherapy. These updated JSGE-IBS guidelines present best practice strategies for IBS patients in Japan and we believe these core strategies can be useful for IBS diagnosis and treatment globally.
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Affiliation(s)
- Shin Fukudo
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi i-MARK Building, 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan.
- Department of Behavioral Medicine Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, 980-8575, Japan.
| | - Toshikatsu Okumura
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi i-MARK Building, 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Masahiko Inamori
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi i-MARK Building, 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Yusuke Okuyama
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi i-MARK Building, 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Motoyori Kanazawa
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi i-MARK Building, 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Takeshi Kamiya
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi i-MARK Building, 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Ken Sato
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi i-MARK Building, 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Akiko Shiotani
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi i-MARK Building, 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Yuji Naito
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi i-MARK Building, 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Yoshiko Fujikawa
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi i-MARK Building, 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Ryota Hokari
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi i-MARK Building, 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Tastuhiro Masaoka
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi i-MARK Building, 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Kazuma Fujimoto
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi i-MARK Building, 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Hiroshi Kaneko
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi i-MARK Building, 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Akira Torii
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi i-MARK Building, 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Kei Matsueda
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi i-MARK Building, 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Hiroto Miwa
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi i-MARK Building, 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Nobuyuki Enomoto
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi i-MARK Building, 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Tooru Shimosegawa
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi i-MARK Building, 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Kazuhiko Koike
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Irritable Bowel Syndrome", The Japanese Society of Gastroenterology, 6F Shimbashi i-MARK Building, 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
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Sperber AD, Bangdiwala SI, Drossman DA, Ghoshal UC, Simren M, Tack J, Whitehead WE, Dumitrascu DL, Fang X, Fukudo S, Kellow J, Okeke E, Quigley EMM, Schmulson M, Whorwell P, Archampong T, Adibi P, Andresen V, Benninga MA, Bonaz B, Bor S, Fernandez LB, Choi SC, Corazziari ES, Francisconi C, Hani A, Lazebnik L, Lee YY, Mulak A, Rahman MM, Santos J, Setshedi M, Syam AF, Vanner S, Wong RK, Lopez-Colombo A, Costa V, Dickman R, Kanazawa M, Keshteli AH, Khatun R, Maleki I, Poitras P, Pratap N, Stefanyuk O, Thomson S, Zeevenhooven J, Palsson OS. Worldwide Prevalence and Burden of Functional Gastrointestinal Disorders, Results of Rome Foundation Global Study. Gastroenterology 2021; 160:99-114.e3. [PMID: 32294476 DOI: 10.1053/j.gastro.2020.04.014] [Citation(s) in RCA: 773] [Impact Index Per Article: 257.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 03/28/2020] [Accepted: 04/01/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND & AIMS Although functional gastrointestinal disorders (FGIDs), now called disorders of gut-brain interaction, have major economic effects on health care systems and adversely affect quality of life, little is known about their global prevalence and distribution. We investigated the prevalence of and factors associated with 22 FGIDs, in 33 countries on 6 continents. METHODS Data were collected via the Internet in 24 countries, personal interviews in 7 countries, and both in 2 countries, using the Rome IV diagnostic questionnaire, Rome III irritable bowel syndrome questions, and 80 items to identify variables associated with FGIDs. Data collection methods differed for Internet and household groups, so data analyses were conducted and reported separately. RESULTS Among the 73,076 adult respondents (49.5% women), diagnostic criteria were met for at least 1 FGID by 40.3% persons who completed the Internet surveys (95% confidence interval [CI], 39.9-40.7) and 20.7% of persons who completed the household surveys (95% CI, 20.2-21.3). FGIDs were more prevalent among women than men, based on responses to the Internet survey (odds ratio, 1.7; 95% CI, 1.6-1.7) and household survey (odds ratio, 1.3; 95% CI, 1.3-1.4). FGIDs were associated with lower quality of life and more frequent doctor visits. Proportions of subjects with irritable bowel syndrome were lower when the Rome IV criteria were used, compared with the Rome III criteria, in the Internet survey (4.1% vs 10.1%) and household survey (1.5% vs 3.5%). CONCLUSIONS In a large-scale multinational study, we found that more than 40% of persons worldwide have FGIDs, which affect quality of life and health care use. Although the absolute prevalence was higher among Internet respondents, similar trends and relative distributions were found in people who completed Internet vs personal interviews.
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Affiliation(s)
- Ami D Sperber
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
| | - Shrikant I Bangdiwala
- Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Ontario, Canada; Population Health Research Institute, McMaster University, Hamilton, Ontario, Canada
| | - Douglas A Drossman
- Center for Functional GI & Motility Disorders, University of North Carolina, Center for Education and Practice of Biopsychosocial Care, and Drossman Gastroenterology, Chapel Hill, North Carolina
| | - Uday C Ghoshal
- Department of Gastroenterology, Sanjay Gandhi Postgraduate Institute of Medical Sciences (SGPGI), Lucknow, India
| | - Magnus Simren
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Jan Tack
- Translational Research Center for Gastrointestinal Disorders (TARGID), University of Leuven, Leuven, Belgium
| | - William E Whitehead
- Center for Functional GI & Motility Disorders, University of North Carolina-Chapel Hill, Chapel Hill, North Carolina
| | - Dan L Dumitrascu
- Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Xuicai Fang
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shin Fukudo
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - John Kellow
- Discipline of Medicine, Northern Clinical School, University of Sydney, Sydney, Australia
| | - Edith Okeke
- Department of Medicine, University of Jos, Jos University Teaching Hospital, Jos, Nigeria
| | - Eamonn M M Quigley
- Lynda K. and David M. Underwood Center for Digestive Disorder, Gastroenterology and Hepatology, Houston Methodist Hospital and Weill Cornell Medical College, Houston, Texas
| | - Max Schmulson
- Laboratory of Liver, Pancreas and Motility (HIPAM), Unit of Research in Experimental Medicine, Faculty of Medicine, Universidad Nacional Autónoma de Mexico (UNAM). Hospital General de México, Mexico City, Mexico
| | - Peter Whorwell
- Neurogastroenterology Unit, Manchester University NHS Foundation Trust, Wythenshawe Hospital, Manchester, United Kingdom
| | - Timothy Archampong
- Department of Medicine, University of Ghana School of Medicine and Dentistry, Accra, Ghana
| | - Payman Adibi
- Integrative Functional Gastroenterology Research Center, Department of Internal Medicine, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Viola Andresen
- Department of Medicine, Israelitic Hospital, Hamburg, Germany
| | - Marc A Benninga
- Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Pediatric Gastroenterology, Amsterdam, The Netherlands
| | - Bruno Bonaz
- Service d'Hépato-Gastroentérologie, CHU Grenoble Alpes, Grenoble, France
| | - Serhat Bor
- Ege University School of Medicine, Division of Gastroenterology, Bornova Izmir, Turkey
| | | | - Suck Chei Choi
- Department of Gastroenterology, School of Medicine, Wonkwang University, Iksan, Korea
| | | | - Carlos Francisconi
- Department of Internal Medicine, Universidade Federal do Rio Grande do Sul, Gastroenterology Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Albis Hani
- Gastroenterology Unit, Hospital Universitario San Ignacio, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Leonid Lazebnik
- Department of Outpatient Medicine, Faculty of Internal Medicine, Moscow State University of Medicine and Dentistry, Moscow, Russia
| | - Yeong Yeh Lee
- School of Medical Sciences, Universiti Sains Malaysia, Kota Bharu, Kelantan, Malaysia
| | - Agata Mulak
- Department of Gastroenterology and Hepatology, Wroclaw Medical University, Wroclaw, Poland
| | | | - Javier Santos
- Department of Gastroenterology, University Hospital Vall d'Hebron, Autonomous University of Barcelona & Neuro-Inmuno-Gastroenterology Lab, Vall d'Hebron Research Institute, Barcelona, Spain
| | - Mashiko Setshedi
- Department of Medicine, Division of Gastroenterology, University of Cape Town, Cape Town, South Africa
| | - Ari Fahrial Syam
- Division of Gastroenterology, Department of Internal Medicine, Faculty of Medicine, Universitas Indonesia/Cipto Mangunkusumo Hospital, Jakarta, Indonesia
| | - Stephen Vanner
- Gastrointestinal Diseases Research Unit, Kingston Health Science Centre, Queen's University, Kingston, Ontario, Canada
| | - Reuben K Wong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore
| | | | - Valeria Costa
- Gastroenterology Unit, Hospital Universitario San Ignacio, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Ram Dickman
- Division of Gastroenterology, Rabin Medical Center, Sackler School of Medicine, Tel-Aviv, Israel
| | - Motoyori Kanazawa
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Ammar Hassanzadeh Keshteli
- CEGIIR-Division of Gastroenterology, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Rutaba Khatun
- Population Health Research Institute, McMaster University, Hamilton, Ontario, Canada
| | - Iradj Maleki
- Gut and Liver Research Center, Department of Internal Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | | | | | - Oksana Stefanyuk
- Department of Biochemical Markers of Chronic Non-Communicable Diseases Research National Medical Research Centre for Preventive Medicine, Moscow, Russia
| | - Sandie Thomson
- Department of Medicine, Division of Gastroenterology, University of Cape Town, Cape Town, South Africa
| | - Judith Zeevenhooven
- Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Pediatric Gastroenterology, Amsterdam, The Netherlands
| | - Olafur S Palsson
- Center for Functional GI & Motility Disorders, University of North Carolina-Chapel Hill, Chapel Hill, North Carolina
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Hamaguchi T, Tayama J, Suzuki M, Nakaya N, Takizawa H, Koizumi K, Amano Y, Kanazawa M, Fukudo S. Correction: The effects of locomotor activity on gastrointestinal symptoms of irritable bowel syndrome among younger people: An observational study. PLoS One 2020; 15:e0244465. [PMID: 33332457 PMCID: PMC7746172 DOI: 10.1371/journal.pone.0244465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Nakamura A, Kanazawa M, Kagaya Y, Kondo M, Sato K, Endo H, Nozaki E. Effects of evolocumab on plasma levels of proprotein convertase subtilisin/kexin type 9 and lipoprotein(a) in acute myocardial infarction. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Background
There are two types of circulating proprotein convertase subtilisin/kexin type 9 (PCSK9), mature and furin-cleaved. Most types of lipoprotein(a) [Lp(a)], an independent risk factor of cardiovascular events, bound to mature PCSK9.
Purpose
This study examined the effects of monoclonal anti-PCSK9 antibody on plasma PCSK9 and Lp(a) levels in acute myocardial infarction (MI).
Methods
Acute MI patients (n=36) were randomly divided into evolocumab (140 mg; n=17) and non-evolocumab (n=19) groups. Changes in plasma PCSK9 and Lp(a) levels were monitored before and 1, 3, 5, 10, and 20 days after evolocumab administration.
Results
In the non-evolocumab group, plasma levels of mature PCSK9, furin-cleaved PCSK9, and Lp(a) (236.4±57.3 ng/mL, 22.4±5.8 ng/mL, and 19.2. ± 16.5 mg/dL, respectively) significantly increased by day 3 (408.8±77.1 ng/mL, P<0.001; 47.2±15.7 ng/mL, P<0.001; and 39.7±21.3 mg/dL, P<0.005, respectively) and returned to the baseline by day 10 or 20. In the evolocumab group, mature PCSK9 significantly increased by >1000 ng/mL with a simultaneous decline of furin-cleaved PCSK9 below the measurement sensitivity level after day 3. The incremental area under the curve for plasma Lp(a) levels was significantly smaller in the evolocumab group compared with the non-evolocumab group (P=0.038).
Conclusion
Mature and furin-cleaved PCSK9 are transiently upregulated after MI onset. Evolocumab significantly increases mature PCSK9 and decreases furin-cleaved PCSK9 and might inhibit transient increase of plasma Lp(a) in acute MI.
Figure 1
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- A Nakamura
- Iwate Prefectural Central Hospital, Morioka, Japan
| | - M Kanazawa
- Iwate Prefectural Central Hospital, Morioka, Japan
| | - Y Kagaya
- Iwate Prefectural Central Hospital, Morioka, Japan
| | - M Kondo
- Iwate Prefectural Central Hospital, Morioka, Japan
| | - K Sato
- Iwate Prefectural Central Hospital, Morioka, Japan
| | - H Endo
- Iwate Prefectural Central Hospital, Morioka, Japan
| | - E Nozaki
- Iwate Prefectural Central Hospital, Morioka, Japan
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21
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Kanazawa M, Toyoda M, Seki T, Iguchi A, Takahashi S, Kagaya Y, Sato K, Saito H, Ito K, Miura M, Kondo M, Kawatsu S, Endo H, Oda K, Nakamura A. Chronotropic incompetence and exercise capacity after mitral valve surgery: the importance of blood hemoglobin level. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Chronotropic incompetence (CI) is sometimes observed during exercise training of cardiac rehabilitation in patients with cardiac surgery, however, little is known concerning the differences between patients with mitral valve (MV) and aortic valve (AV) surgery.
Purpose
Because the possibility exists that cardiac sympathetic nerves might be impaired by left atrium incision, we hypothesized that the incidence of CI was higher in patients with MV surgery (Mitral Valve Replacement and Mitral Valvuloplasty) as compared with patients with AV surgery (Aortic Valve Replacement). And if so, which factor determines the exercise capacity of patients after MV surgery. We thus aimed this study to elucidate the hypothesis with cardiopulmonary exercise testing (CPX).
Methods
We performed CPX by ramp loading with ergometer exercise in total 61 patients who had undergone elective cardiac valve operation (25 patients with MV surgery, age 59.2±9.9 years; 36 patients with AV surgery, age 64.6±12.3 years). We analyzed chronotropic response index (CRI), peak oxygen uptake (peak VO2/W), anaerobic threshold (AT), and peak oxygen pulse (peak VO2/HR) with CPX, and blood hemoglobin concentration (Hb).
Results
The value of CRI was significantly decreased in the patients with MV surgery compared with those with AV surgery (MV; 0.19±0.10 vs. AV; 0.41±0.17, p<0.001). Peak VO2, peak VO2/HR and Hb were not significantly different between patients with MV and those with AV surgery. Patients with MV surgery showed correlations between peak VO2 and Hb (r=0.45, p<0.05), AT and Hb (r=0.52, p<0.01), and a strong correlation between peak VO2 and peak VO2/HR (r=0.63, p<0.001), but not in those with AV surgery.
Conclusions
The present study demonstrated that higher incidence of CI was shown in patients with MV surgery as compared with those with AV surgery. The exercise capacity of patients with MV surgery was determined by peak VO2/HR and Hb. These results suggest that 1) left atrium incision impairs cardiac sympathetic nerves and causes CI, 2) peak VO2/HR which is consisted of arterio-venous oxygen difference and Hb is critical indicator for exercise capacity in patients with MV surgery with CI.
Main results
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- M Kanazawa
- Iwate Prefectural Central Hospital, Department of Cardiology, Morioka, Japan
| | - M Toyoda
- Iwate Prefectural Central Hospital, Department of Rehabilitation, Morioka, Japan
| | - T Seki
- Iwate Prefectural Central Hospital, Department of Rehabilitation, Morioka, Japan
| | - A Iguchi
- Iwate Prefectural Central Hospital, Department of Rehabilitation, Morioka, Japan
| | - S Takahashi
- Iwate Prefectural Central Hospital, Department of Rehabilitation, Morioka, Japan
| | - Y Kagaya
- Iwate Prefectural Central Hospital, Department of Cardiology, Morioka, Japan
| | - K Sato
- Iwate Prefectural Central Hospital, Department of Cardiology, Morioka, Japan
| | - H Saito
- Iwate Prefectural Central Hospital, Department of Cardiology, Morioka, Japan
| | - K Ito
- Iwate Prefectural Central Hospital, Department of Cardiovascular Surgery, Morioka, Japan
| | - M Miura
- Iwate Prefectural Central Hospital, Department of Cardiology, Morioka, Japan
| | - M Kondo
- Iwate Prefectural Central Hospital, Department of Cardiology, Morioka, Japan
| | - S Kawatsu
- Iwate Prefectural Central Hospital, Department of Cardiovascular Surgery, Morioka, Japan
| | - H Endo
- Iwate Prefectural Central Hospital, Department of Cardiology, Morioka, Japan
| | - K Oda
- Iwate Prefectural Central Hospital, Department of Cardiovascular Surgery, Morioka, Japan
| | - A Nakamura
- Iwate Prefectural Central Hospital, Department of Cardiology, Morioka, Japan
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22
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Ninomiya I, Kanazawa M, Uemura M, Onodera O. Elevated serum pentraxin 3 levels might predict the diagnosis of branch atheromatous disease at a very early stage. Eur J Neurol 2020; 27:1279-1284. [PMID: 32250504 DOI: 10.1111/ene.14249] [Citation(s) in RCA: 8] [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] [Received: 01/28/2020] [Accepted: 03/29/2020] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND PURPOSE Branch atheromatous disease (BAD) is one of the stroke subtypes caused by occlusion at the origin of a deep penetrating artery of the brain and is associated with a microatheroma or a junctional plaque. Patients with BAD often develop progressive worsening of neurologic deficits, although these patients often present minor stroke with clinical characteristics of lacunar syndrome at the onset. Pentraxin 3 (PTX3) is known to be a key molecule involved in the pathogenesis of atherosclerosis. Although a high level of serum PTX3 is observed in patients with acute coronary syndrome, there are no reports on PTX3 levels in patients with BAD. This study aimed to investigate whether serum PTX3 levels can distinguish BAD from other stroke subtypes. METHODS We investigated 93 patients with ischaemic stroke. Serum PTX3 levels on admission were measured using enzyme-linked immunosorbent assay in patients with BAD and those with other stroke subtypes (each n ≥ 20). RESULTS The median PTX3 levels in patients with BAD (4840 pg/mL) were higher than those with other subtypes of stroke (3397 pg/mL in lacunar stroke, 1298 pg/mL in large-artery atherosclerosis, 1470 pg/mL in cardioaortic embolism and 1006 pg/mL in control) (all P < 0.01). CONCLUSION Our results suggest that elevated serum PTX3 levels might predict the diagnosis of BAD at a very early stage.
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Affiliation(s)
- I Ninomiya
- Department of Neurology, Brain Research Institute, Niigata University, Niigata, Japan
| | - M Kanazawa
- Department of Neurology, Brain Research Institute, Niigata University, Niigata, Japan
| | - M Uemura
- Department of Neurology, Brain Research Institute, Niigata University, Niigata, Japan
| | - O Onodera
- Department of Neurology, Brain Research Institute, Niigata University, Niigata, Japan
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23
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Hamaguchi T, Tayama J, Suzuki M, Nakaya N, Takizawa H, Koizumi K, Amano Y, Kanazawa M, Fukudo S. The effects of locomotor activity on gastrointestinal symptoms of irritable bowel syndrome among younger people: An observational study. PLoS One 2020; 15:e0234089. [PMID: 32470098 PMCID: PMC7259724 DOI: 10.1371/journal.pone.0234089] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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: 11/29/2019] [Accepted: 05/18/2020] [Indexed: 12/12/2022] Open
Abstract
Irritable bowel syndrome (IBS) is a common bowel disorder that manifests as unexplained abdominal pain or discomfort and bowel habit changes in the form of diarrhea, constipation, or alternating patterns of the two. Some evidences demonstrate that increased physical activity improves IBS symptoms. Hence, daily exercise is recommended in these patients. In this study, we aimed to investigate the relationship between physical activity and gastrointestinal symptoms in 101 university students (female = 78) with IBS. Participants were examined by Gastrointestinal Symptoms Rating Scale (GSRS), and gait steps were measured for 1 week using a pedometer. The association between the GSRS score and pedometer counts was determined by ordinal logistic modeling analysis. The ordinal logistic regression model for GSRS and locomotor activity showed a significant stepwise fit (z = -3.05, p = 0.002). The logistic curve separated GSRS score of 5 points (moderately severe discomfort) from 2 points (minor discomfort) by locomotor activity. The probability for daily locomotor activity to discriminate between 5 and 4 points of GSRS (i.e., likely to have reverse symptoms) decreased in accordance with increment of steps per day: 78% probability for 4000 steps, 70% probability for 6000 steps, 59% probability for 8000 steps, and 48% probability for 10000 steps. This study demonstrated that the severity of GSRS is associated with the amount of walking in younger people with IBS. These results may be used as a measure to determine the daily step count to reduce the severity of gastrointestinal symptoms in individuals with IBS.
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Affiliation(s)
- Toyohiro Hamaguchi
- Department of Rehabilitation, Graduate School of Health Science, Saitama Prefectural University, Saitama, Japan
- Department of Behavioral Medicine, Graduate School of Medicine, Tohoku University, Sendai, Japan
- * E-mail:
| | - Jun Tayama
- Department of Behavioral Medicine, Graduate School of Medicine, Tohoku University, Sendai, Japan
- Faculty of Human Sciences, Waseda University, Saitama, Japan
| | - Makoto Suzuki
- Faculty of Health Sciences, Tokyo Kasei University, Saitama, Japan
| | - Naoki Nakaya
- Department of Rehabilitation, Graduate School of Health Science, Saitama Prefectural University, Saitama, Japan
- Department of Behavioral Medicine, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Hirokazu Takizawa
- Department of Rehabilitation, Graduate School of Health Science, Saitama Prefectural University, Saitama, Japan
| | - Kohei Koizumi
- Department of Rehabilitation, Graduate School of Health Science, Saitama Prefectural University, Saitama, Japan
| | - Yoshifumi Amano
- Department of Rehabilitation, Graduate School of Health Science, Saitama Prefectural University, Saitama, Japan
| | | | - Shin Fukudo
- Faculty of Human Sciences, Waseda University, Saitama, Japan
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24
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Kano M, Yoshizawa M, Kono K, Muratsubaki T, Morishita J, Van Oudenhove L, Yagihashi M, Mugikura S, Dupont P, Takase K, Kanazawa M, Fukudo S. Parasympathetic activity correlates with subjective and brain responses to rectal distension in healthy subjects but not in non-constipated patients with irritable bowel syndrome. Sci Rep 2019; 9:7358. [PMID: 31089154 PMCID: PMC6517375 DOI: 10.1038/s41598-019-43455-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Accepted: 04/18/2019] [Indexed: 12/15/2022] Open
Abstract
The nociceptive and autonomic nervous systems (ANS) are significantly intertwined. Decoupling of these systems may occur in pathological pain conditions, including irritable bowel syndrome (IBS). We investigated ANS activity and its association with visceral perception and brain activity during rectal distention in 27 patients with non-constipated IBS and 33 controls by assessing heart rate variability (HRV) using electrocardiography at rest, before, and during colorectal distention. Brain responses to colorectal distention were measured using functional magnetic resonance imaging and correlated with individual ANS function parameters. The IBS group displayed blunted sympathovagal balance [low/high-frequency ratio (LF:HF) of HRV] in response to colorectal distention compared with controls (P = 0.003). In controls, basal parasympathetic tone (HF component of HRV) was significantly negatively correlated with toleration threshold to the rectal distention, but not in patients with IBS (group comparison P = 0.04). Further, a positive correlation between baseline HF values and neural responses to rectal distension was found in the right caudate, bilateral dorsolateral anterior cingulate cortex, and pregenual anterior cingulate cortex in the control group but not in the IBS group. The results indicate abnormal interactions between ANS activity and the brain mechanisms underlying visceral perception in patients with IBS.
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Affiliation(s)
- Michiko Kano
- Sukawa Clinic, Kirari Health Coop, Fukushima, Japan. .,Behavioral Medicine, Graduate School of Medicine, Tohoku University, Sendai, Japan.
| | - Makoto Yoshizawa
- Research Division on Advanced Information Technology, Cyberscience Center, Tohoku University, Sendai, Japan
| | - Keiji Kono
- Behavioral Medicine, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Tomohiko Muratsubaki
- Behavioral Medicine, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Joe Morishita
- Behavioral Medicine, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Lukas Van Oudenhove
- Laboratory for Brain-Gut Axis Studies (LaBGAS), Translational Research Center for Gastrointestinal Disorders (TARGID), KU Leuven, Leuven, Belgium
| | - Mao Yagihashi
- Dept. Biodesign, Clinical Research, Innovation and Education Center (CRIETO), Tohoku University Hospital, Sendai, Japan
| | - Shunji Mugikura
- Diagnostic Radiology, Tohoku University Hospital, Sendai, Japan
| | - Patrick Dupont
- Laboratory for Cognitive Neurology, KU Leuven, Leuven, Belgium
| | - Kei Takase
- Diagnostic Radiology, Tohoku University Hospital, Sendai, Japan
| | - Motoyori Kanazawa
- Behavioral Medicine, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Shin Fukudo
- Behavioral Medicine, Graduate School of Medicine, Tohoku University, Sendai, Japan
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25
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Abstract
The presence of stem cells within the dental-pulp tissue as well as their differentiation into a new generation of functional odontoblast-like cells constitutes an important step of the dentin-pulp regeneration. Recent investigations demonstrated that the complement system activation participates in 2 critical steps of dentin-pulp regeneration: pulp progenitor's recruitment and pulp nerve sprouting. Surprisingly, its implication in odontoblastic differentiation has not been addressed yet. Since the complement receptor C5a receptor-like 2 (C5L2) is expressed by different stem cells, the aim of this study is to investigate if the dental pulp stem cells express C5L2 and if this receptor participates in odontoblastic differentiation. Immunohistochemistry performed on human third molar pulp sections showed a perivascular co-localization of the mesenchymal stem cell markers STRO1 and C5L2. In vitro immunofluorescent staining confirmed that hDPSCs express C5L2. Furthermore, we determined by real-time polymerase chain reaction that the expression of C5L2 is highly modulated in human dental pulp stem cells (hDPSCs) undergoing odontoblastic differentiation. Moreover, we showed that this odontogenesis-regulated expression of C5L2 is specifically potentiated by the proinflammatory cytokine TNFα. Using a C5L2-siRNA silencing strategy, we provide direct evidence that C5L2 constitutes a negative regulator of the dentinogenic marker DMP1 (dentin matrix protein 1) expression by hDPSCs. Our findings suggest a direct correlation between the odontoblastic differentiation and the level of C5L2 expression in hDPSCs and identify C5L2 as a negative regulator of DMP1 expression by hDPSCs during the odontoblastic differentiation and inflammation processes. This work is the first to demonstrate the involvement of C5L2 in the biological function of stem cells, provides an important knowledge in understanding odontoblastic differentiation of dental pulp stem cells, and may be useful in future dentin-pulp engineering strategies.
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Affiliation(s)
- F Chmilewsky
- 1 Department of Oral Biology, University of Illinois at Chicago, Chicago, IL, USA
| | - R Liang
- 1 Department of Oral Biology, University of Illinois at Chicago, Chicago, IL, USA
| | - M Kanazawa
- 1 Department of Oral Biology, University of Illinois at Chicago, Chicago, IL, USA
| | - I About
- 2 Department of Oral Biology, Aix Marseille Université, Marseille, France
| | - L F Cooper
- 1 Department of Oral Biology, University of Illinois at Chicago, Chicago, IL, USA
| | - A George
- 1 Department of Oral Biology, University of Illinois at Chicago, Chicago, IL, USA
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26
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Kosako M, Akiho H, Miwa H, Kanazawa M, Fukudo S. Influence of the requirement for abdominal pain in the diagnosis of irritable bowel syndrome with constipation (IBS-C) under the Rome IV criteria using data from a large Japanese population-based internet survey. Biopsychosoc Med 2018; 12:18. [PMID: 30534195 PMCID: PMC6280510 DOI: 10.1186/s13030-018-0137-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 11/16/2018] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Rome III was revised to Rome IV in May 2016. One important change in the Rome IV criteria is that abdominal pain must be present for a diagnosis of irritable bowel syndrome (IBS). Under Rome III, in contrast, patients with abdominal discomfort only could be diagnosed with IBS, but these cases under Rome IV are now classified as unspecified functional bowel disorder (FBD). In a simple comparison of Rome III and Rome IV, it is unclear whether this difference reflects the influence of symptomatic frequency or the presence of abdominal pain. In particular, the influence of abdominal pain restriction on the diagnosis of IBS with predominant constipation (IBS-C) in the Rome IV criteria is largely unknown. METHODS We reclassified subjects from a Japanese internet survey experiencing abdominal pain or discomfort at least one day each week as surrogate Rome III IBS-C subjects. Among them, we then reclassified subjects experiencing abdominal pain as surrogate Rome IV IBS-C subjects and subjects not experiencing abdominal pain as surrogate Rome IV FBD subjects. Symptoms were quantified and compared between the two groups. RESULTS The surrogate Rome IV IBS-C subjects felt a significantly higher degree of anxiety in their daily lives (p < 0.001) compared with the surrogate Rome IV FBD subjects. The combined female and 20-49 years surrogate Rome IV IBS-C subjects felt a higher degree of anxiety in their daily lives (p < 0.05) than the respective Rome IV FBD subjects. CONCLUSIONS These results suggest that female IBS-C patients aged 20-49 years with abdominal pain in Rome IV have more anxiety than those without abdominal pain in Rome III. Changes in the diagnostic criteria from Rome III to Rome IV will better identify candidates for the biopsychosocial approach. TRIAL REGISTRATION Although this survey was an anonymous internet survey, we obtained informed consent for the study as an online response. The disclosure of this study was approved by the Ethics Committee of Tohoku University Graduate School of Medicine (approval number: 2015-1-405).
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Affiliation(s)
- Masanori Kosako
- Japan-Asia Clinical Development 1, Development, Astellas Pharma Inc., 2-5-1, Nihonbashi-Honcho, Chuo-ku, Tokyo, 103-8411 Japan
| | - Hiraku Akiho
- Former employee of Astellas Pharma Inc., Tokyo, Japan
| | - Hiroto Miwa
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
| | - Motoyori Kanazawa
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Shin Fukudo
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
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27
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Kosako M, Akiho H, Miwa H, Kanazawa M, Fukudo S. Impact of symptoms by gender and age in Japanese subjects with irritable bowel syndrome with constipation (IBS-C): a large population-based internet survey. Biopsychosoc Med 2018; 12:12. [PMID: 30186363 PMCID: PMC6122187 DOI: 10.1186/s13030-018-0131-2] [Citation(s) in RCA: 13] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 08/27/2018] [Indexed: 12/21/2022] Open
Abstract
Background Irritable bowel syndrome with constipation (IBS-C) is a representative psychosomatic disorder. Several pathophysiological factors have been linked to IBS symptoms such as the modulation of gastrointestinal motility, visceral hypersensitivity, dysregulation of the gut-brain axis, genetic and environmental factors, sequelae of infection, and psychosocial disorders. It is likely that biopsychosocial aspects of IBS-C underlie its gender and age effects. However, the influence of each symptom of IBS-C by gender and age is not well understood. We hypothesized that the expression rate of each IBS-C symptom in females and in subjects aged 20–49 years was higher than that of subjects who were male and aged 50–79 years. Methods We conducted an internet survey of 30,000 adults from the general Japanese population. IBS-C subjects were asked to answer a questionnaire on the degree of anxiety, thoughts about bowel habits, and their dominant gastrointestinal symptoms together with exacerbation factors. The correlation between gender and age and IBS-C symptoms was analyzed. Results When analyzed by gender, the expression rate of abdominal discomfort, abdominal distention, and abdominal fullness was significantly higher in female than male IBS-C subjects (66.5% vs. 58.7%, p < 0.05; 54.7% vs. 43.6%, p < 0.01; 18.9% vs. 9.6%, p < 0.01, respectively). When analyzed by age, the expression rate of abdominal distention and abdominal pain was significantly higher among IBS-C subjects aged 20–49 years than those aged 50–79 years (55.7% vs. 46.8%, p < 0.05; 36.6% vs. 20.6%, p < 0.001, respectively). In contrast, there was no gender or age differences with regard to the most common and bothersome symptom (abdominal bloating) among IBS-C subjects. Conclusions The expression rate of some IBS-C symptoms was higher among females and those aged 20–49 years than males and those aged 50–79 years, respectively. It is important to understand the impact of symptoms by gender and age to evaluate the pathology of IBS-C from a biopsychosocial perspective. Trial registration Although this survey was an anonymous internet survey, we obtained informed consent for the study as an online response. The disclosure of this study was approved by the Ethics Committee of Tohoku University Graduate School of Medicine (approval number: 2015–1-405).
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Affiliation(s)
- Masanori Kosako
- 1Japan-Asia Clinical Development 1, Development, Astellas Pharma Inc., 2-5-1, Nihonbashi-Honcho, Chuo-ku, Tokyo, 103-8411 Japan
| | - Hiraku Akiho
- 2Former employee of Astellas Pharma Inc., Tokyo, Japan
| | - Hiroto Miwa
- 3Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
| | - Motoyori Kanazawa
- 4Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Shin Fukudo
- 4Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
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28
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Tanaka Y, Kanazawa M, Kano M, Tashiro M, Fukudo S. Relationship between sympathoadrenal and pituitary-adrenal response during colorectal distention in the presence of corticotropin-releasing hormone in patients with irritable bowel syndrome and healthy controls. PLoS One 2018; 13:e0199698. [PMID: 29979696 PMCID: PMC6034822 DOI: 10.1371/journal.pone.0199698] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Accepted: 06/12/2018] [Indexed: 12/12/2022] Open
Abstract
Corticotropin-releasing hormone (CRH) mediates stress responses in the brain-gut axis. Administration of CRH modulates brain activation, for example by controlling the autonomic nervous system in response to colorectal distention. Here, we investigated the relationship between sympathoadrenal and hypothalamic-pituitary-adrenal (HPA) responses to colorectal distention in patients with irritable bowel syndrome (IBS). We enrolled 32 patients with IBS (16 women and 16 men) and 32 healthy subjects (16 women and 16 men), and randomly divided them between CRH and saline injection groups. The patients randomly underwent no (0 mmHg), mild (20 mmHg), or strong (40 mmHg) colorectal distension. CRH (2 μg/kg) or saline was then administered via injection, and the distention protocol was repeated. The heart rate (HR) and HR variability (HRV; calculated as the low [LF] to high frequency [HF] peak ratio, LF/HF) were analyzed using electrocardiography. Plasma noradrenaline, adrenaline, adrenocorticotropic hormone (ACTH), and cortisol levels were measured at the time of each distention. Plasma adrenaline levels were shown to be associated with plasma ACTH levels in HCs injected with CRH during distention using structural equation modeling analysis. Patients with IBS injected with placebo during distention displayed a closer association between these two parameters than those injected with CRH. Generalized estimating equation analysis revealed a significant distention × group × drug interaction for HF power. Moreover, there was a strong correlation between adrenaline and HRV upon CRH injection in controls, but not patients with IBS. The relationship between HPA-sympathoadrenal responses and CRH levels during colorectal distention differs between patients with IBS and controls. Modulation of adrenal gland activity in response to ACTH stimulation may contribute to the brain-gut pathophysiology characteristic of IBS.
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Affiliation(s)
- Yukari Tanaka
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Motoyori Kanazawa
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Michiko Kano
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
- Department of Frontier Research Institute for Interdisciplinary Sciences, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Manabu Tashiro
- Cyclotron RI Center, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Shin Fukudo
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
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29
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Tanaka Y, Kanazawa M, Palsson OS, Tilburg MAV, Gangarosa LM, Fukudo S, Drossman DA, Whitehead WE. Increased Postprandial Colonic Motility and Autonomic Nervous System Activity in Patients With Irritable Bowel Syndrome: A Prospective Study. J Neurogastroenterol Motil 2018; 24:87-95. [PMID: 29291610 PMCID: PMC5753907 DOI: 10.5056/jnm16216] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 05/15/2017] [Accepted: 08/16/2017] [Indexed: 12/15/2022] Open
Abstract
Background/Aims The prevalence and severity of irritable bowel syndrome (IBS) declines with age, but the cause of this is unknown. This study tested 2 hypotheses: (1) autonomic nervous system responses to eating and bowel distention, measured by heart rate variability (HRV), differs by age in IBS patients and (2) HRV is correlated with colonic motility and IBS symptoms. Methods One hundred and fifty-six Rome III positive IBS patients and 31 healthy controls underwent colonic manometry with bag distention in the descending colon, followed by ingestion of an 810-kcal meal. HRV, evaluated by low frequency (%LF; 0.04–0.15 Hz) component, high frequency (%HF; 0.15–0.40 Hz) component, and the LF/HF ratio, was measured during colonic distention and after the meal. Motility index and subjective symptom scores were simultaneously quantified. Results Both colonic distention and eating decreased %HF and increased the LF/HF ratio, and both indices of autonomic nervous system correlated with age. In IBS patients, %HF negatively correlated with the postprandial motility index after adjusting for age. The %HF and LF/HF ratios also correlated with psychological symptoms but not bowel symptoms in IBS patients. Conclusion Decreased vagal activity is associated with increase in age and greater postprandial colonic motility in patients with IBS, which may contribute to postprandial symptoms.
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Affiliation(s)
- Yukari Tanaka
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan.,Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Motoyori Kanazawa
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan.,Center for Functional GI and Motility Disorders, University of North Carolina at Chapel Hill, NC, USA
| | - Olafur S Palsson
- Center for Functional GI and Motility Disorders, University of North Carolina at Chapel Hill, NC, USA
| | - Miranda A Van Tilburg
- Center for Functional GI and Motility Disorders, University of North Carolina at Chapel Hill, NC, USA
| | - Lisa M Gangarosa
- Center for Functional GI and Motility Disorders, University of North Carolina at Chapel Hill, NC, USA
| | - Shin Fukudo
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Douglas A Drossman
- Center for Functional GI and Motility Disorders, University of North Carolina at Chapel Hill, NC, USA
| | - William E Whitehead
- Center for Functional GI and Motility Disorders, University of North Carolina at Chapel Hill, NC, USA
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30
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Hatakeyama M, Sato T, Takahashi T, Kanazawa M, Onodera O, Nishizawa M, Shimohata T. Predictors of cognitive impairment in multiple system atrophy. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.659] [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: 11/16/2022]
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31
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Kanazawa M, Miura M, Toriyabe M, Koyama M, Hatakeyama M, Ishikawa M, Nakajima T, Onodera O, Nishizawa M, Shimohata T. Preconditioned protective microglia by oxygen-glucose deprivation promote functional recovery in ischemic rats. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3694] [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: 11/25/2022]
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32
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Kano M, Muratsubaki T, Van Oudenhove L, Morishita J, Yoshizawa M, Kohno K, Yagihashi M, Tanaka Y, Mugikura S, Dupont P, Ly HG, Takase K, Kanazawa M, Fukudo S. Altered brain and gut responses to corticotropin-releasing hormone (CRH) in patients with irritable bowel syndrome. Sci Rep 2017; 7:12425. [PMID: 28963545 PMCID: PMC5622133 DOI: 10.1038/s41598-017-09635-x] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Accepted: 07/27/2017] [Indexed: 12/11/2022] Open
Abstract
Stress is a known trigger of irritable bowel syndrome (IBS) and exacerbates its gastrointestinal symptoms. However, underlying the physiological mechanism remains unknown. Here, we investigated hypothalamic–pituitary–adrenal (HPA) axis, colonic motility, and autonomic responses to corticotropin-releasing hormone (CRH) administration as well as brain activity alterations in IBS. The study included 28 IBS patients and 34 age and sex-matched healthy control subjects. IBS patients demonstrated greater adrenocorticotropic hormone (ACTH) responses to CRH than control subjects. Male IBS patients had greater increases in colonic motility than male HCs after CRH. Female IBS patients showed altered sympathovagal balance and lower basal parasympathetic tone relative to female control subjects. Brain responses to rectal distention were measured in the same subjects using functional magnetic resonance imaging, and their associations with individual ACTH responses to CRH were tested. A negative association between ACTH response to CRH and activity in the pregenual anterior cingulate cortex (pACC) during rectal distention was identified in controls but not in IBS patients. Impaired top-down inhibitory input from the pregenual ACC to the HPA axis may lead to altered neuroendocrine and gastrointestinal responses to CRH. Centrally acting treatments may dampen the stress induced physical symptoms in IBS.
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Affiliation(s)
- Michiko Kano
- Frontier Research Institute for Interdisciplinary Sciences (FRIS), Tohoku University, Sendai, Japan. .,Behavioral Medicine, Graduate School of Medicine, Tohoku University, Sendai, Japan.
| | - Tomohiko Muratsubaki
- Behavioral Medicine, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Lukas Van Oudenhove
- Laboratory for Brain-Gut Axis Studies (LaBGAS), Translational Research Center for Gastrointestinal Disorders (TARGID), University of Leuven, Leuven, Belgium
| | - Joe Morishita
- Behavioral Medicine, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Makoto Yoshizawa
- Research Division on Advanced Information Technology, Cyberscience Center, Tohoku University, Sendai, Japan
| | - Keiji Kohno
- Behavioral Medicine, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Mao Yagihashi
- Behavioral Medicine, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Yukari Tanaka
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Shunji Mugikura
- Diagnostic Radiology, Tohoku University Hospital, Sendai, Japan
| | - Patrick Dupont
- Laboratory for Cognitive Neurology, University of Leuven, Leuven, Belgium
| | - Huynh Giao Ly
- Laboratory for Brain-Gut Axis Studies (LaBGAS), Translational Research Center for Gastrointestinal Disorders (TARGID), University of Leuven, Leuven, Belgium
| | - Kei Takase
- Diagnostic Radiology, Tohoku University Hospital, Sendai, Japan
| | - Motoyori Kanazawa
- Behavioral Medicine, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Shin Fukudo
- Behavioral Medicine, Graduate School of Medicine, Tohoku University, Sendai, Japan.
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Hama Y, Hosoda A, Komagamine Y, Gotoh S, Kubota C, Kanazawa M, Minakuchi S. Masticatory performance-related factors in preschool children: establishing a method to assess masticatory performance in preschool children using colour-changeable chewing gum. J Oral Rehabil 2017; 44:948-956. [DOI: 10.1111/joor.12553] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/23/2017] [Indexed: 11/29/2022]
Affiliation(s)
- Y. Hama
- Gerodontology and Oral rehabilitation; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
| | - A. Hosoda
- Division of Medical Nutrition; Faculty of Healthcare; Tokyo Healthcare University; Tokyo Japan
| | - Y. Komagamine
- Gerodontology and Oral rehabilitation; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
| | - S. Gotoh
- Pediatric Dentistry; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
| | - C. Kubota
- National Institute of Public Health; Tokyo Japan
| | - M. Kanazawa
- Gerodontology and Oral rehabilitation; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
| | - S. Minakuchi
- Gerodontology and Oral rehabilitation; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
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Abe K, Iseki C, Suzuki M, Kokufu H, Arahori Y, Ohno T, Kanazawa M, Takeishi Y. Abstract P4-20-06: Results of an educational program delivered through e-learning, focused on nursing for primary breast cancer patients. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p4-20-06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Aim: An educational program delivered through e-learning was conducted, focusing on nursing for primary breast cancer patients. This paper investigates the results of the program, clarifying changes in levels of understanding before and after the program, and evaluations of the program by nurses who participated. Methods: The content of the education program, which consisted of 24 lessons, each lasting 15-20 minutes, including case studies, covered concerns raised in questions by patients and families about diagnosis, multimodal treatment and nursing for primary breast cancer. Instructors were Certified Nurses in Breast Cancer Nursing and Certified Nurse Specialists in Cancer Nursing, and PowerPoint presentations with video and audio material were created. A dedicated website was created, and 1417 participants took the on-demand program, which was provided from September 2015 to March 2016. Survey participants were the first 500 nurses registered for the course to respond. A questionnaire created by the researchers was sent by post to respondents. Responses were anonymous with identifying information code, and questionnaires were sent with a return envelope before the program (within 2 weeks of registration) and after the program (within 1 month of the end of the program), with return of the questionnaire signifying consent to participate. The questionnaire comprised 24 items on level of understanding of breast cancer nursing, aligned to program content, plus 11 items on evaluation of the program. Responses were selected from a 5-point scale, where 1 meant “strongly disagree” and 5 meant “strongly agree”. Analysis: Responses were quantified, and mean scores for each item were calculated. In addition, respondents were divided into two groups, namely, those with less than 3 years of breast cancer nursing experience (Group A) and those with 3 or more years' experience (Group B), and were compared using the Mann-Whitney U test. SPSS Statistics V22.0 was used. Ethical considerations: The study went through Research Ethics approval at the researchers' institute of affiliation. Results: A total of 126 people replied to both the pre-program and post-program questionnaire, and of these, the responses of 106 nurses (Group A: 34 nurses, Group B: 72 nurses) who were not qualified as Certified Nurses or Certified Nurse Specialists were used for analysis. Median age was 41.0 years (Group A: 38.5 years, Group B: 42 years), and median number of years of breast cancer nursing was 4.6 years. In terms of program evaluation, “I could study when it was convenient for me” scored 4.63, while “It will be useful for breast cancer nursing from now on” scored 4.57. In terms of comparison of level of understanding before and after the program, understanding improved on all 24 items, and was significant on 19 items. Comparison of the 2 groups showed significant difference on 2 items, “support for changes in body image” and “communication with the patient”, with changes in level of understanding in Group A being greater. Discussion: The study suggests that participants' understanding of breast cancer nursing increased and improvements in clinical practice can be expected through e-learning materials that facilitate effective learning.
Citation Format: Abe K, Iseki C, Suzuki M, Kokufu H, Arahori Y, Ohno T, Kanazawa M, Takeishi Y. Results of an educational program delivered through e-learning, focused on nursing for primary breast cancer patients [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr P4-20-06.
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Affiliation(s)
- K Abe
- Chiba University Graduate School of Nursing, Chiba, Japan; National Hospital Organization Chiba Medical Center, Chiba, Japan; Kumamoto University Graduate School of Life Science, Kumamoto, Japan; Kushiro City General Hospital, Hokkaido, Japan; Chiba University Hospital, Chiba, Japan; Tohoku University Hospital, Miyagi, Japan; Hiraka General Hospital, Akita, Japan
| | - C Iseki
- Chiba University Graduate School of Nursing, Chiba, Japan; National Hospital Organization Chiba Medical Center, Chiba, Japan; Kumamoto University Graduate School of Life Science, Kumamoto, Japan; Kushiro City General Hospital, Hokkaido, Japan; Chiba University Hospital, Chiba, Japan; Tohoku University Hospital, Miyagi, Japan; Hiraka General Hospital, Akita, Japan
| | - M Suzuki
- Chiba University Graduate School of Nursing, Chiba, Japan; National Hospital Organization Chiba Medical Center, Chiba, Japan; Kumamoto University Graduate School of Life Science, Kumamoto, Japan; Kushiro City General Hospital, Hokkaido, Japan; Chiba University Hospital, Chiba, Japan; Tohoku University Hospital, Miyagi, Japan; Hiraka General Hospital, Akita, Japan
| | - H Kokufu
- Chiba University Graduate School of Nursing, Chiba, Japan; National Hospital Organization Chiba Medical Center, Chiba, Japan; Kumamoto University Graduate School of Life Science, Kumamoto, Japan; Kushiro City General Hospital, Hokkaido, Japan; Chiba University Hospital, Chiba, Japan; Tohoku University Hospital, Miyagi, Japan; Hiraka General Hospital, Akita, Japan
| | - Y Arahori
- Chiba University Graduate School of Nursing, Chiba, Japan; National Hospital Organization Chiba Medical Center, Chiba, Japan; Kumamoto University Graduate School of Life Science, Kumamoto, Japan; Kushiro City General Hospital, Hokkaido, Japan; Chiba University Hospital, Chiba, Japan; Tohoku University Hospital, Miyagi, Japan; Hiraka General Hospital, Akita, Japan
| | - T Ohno
- Chiba University Graduate School of Nursing, Chiba, Japan; National Hospital Organization Chiba Medical Center, Chiba, Japan; Kumamoto University Graduate School of Life Science, Kumamoto, Japan; Kushiro City General Hospital, Hokkaido, Japan; Chiba University Hospital, Chiba, Japan; Tohoku University Hospital, Miyagi, Japan; Hiraka General Hospital, Akita, Japan
| | - M Kanazawa
- Chiba University Graduate School of Nursing, Chiba, Japan; National Hospital Organization Chiba Medical Center, Chiba, Japan; Kumamoto University Graduate School of Life Science, Kumamoto, Japan; Kushiro City General Hospital, Hokkaido, Japan; Chiba University Hospital, Chiba, Japan; Tohoku University Hospital, Miyagi, Japan; Hiraka General Hospital, Akita, Japan
| | - Y Takeishi
- Chiba University Graduate School of Nursing, Chiba, Japan; National Hospital Organization Chiba Medical Center, Chiba, Japan; Kumamoto University Graduate School of Life Science, Kumamoto, Japan; Kushiro City General Hospital, Hokkaido, Japan; Chiba University Hospital, Chiba, Japan; Tohoku University Hospital, Miyagi, Japan; Hiraka General Hospital, Akita, Japan
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Tanoue K, Okino H, Kanazawa M, Ueno K. Single-incision laparoscopic transabdominal preperitoneal mesh hernioplasty: results in 182 Japanese patients. Hernia 2016; 20:797-803. [DOI: 10.1007/s10029-016-1540-4] [Citation(s) in RCA: 3] [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] [Received: 09/10/2015] [Accepted: 10/08/2016] [Indexed: 01/20/2023]
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Tanaka Y, Kanazawa M, Kano M, Morishita J, Hamaguchi T, Van Oudenhove L, Ly HG, Dupont P, Tack J, Yamaguchi T, Yanai K, Tashiro M, Fukudo S. Differential Activation in Amygdala and Plasma Noradrenaline during Colorectal Distention by Administration of Corticotropin-Releasing Hormone between Healthy Individuals and Patients with Irritable Bowel Syndrome. PLoS One 2016; 11:e0157347. [PMID: 27448273 PMCID: PMC4957789 DOI: 10.1371/journal.pone.0157347] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2016] [Accepted: 05/29/2016] [Indexed: 12/11/2022] Open
Abstract
Irritable bowel syndrome (IBS) often comorbids mood and anxiety disorders. Corticotropin-releasing hormone (CRH) is a major mediator of the stress response in the brain-gut axis, but it is not clear how CRH agonists change human brain responses to interoceptive stimuli. We tested the hypothesis that brain activation in response to colorectal distention is enhanced after CRH injection in IBS patients compared to healthy controls. Brain H215O- positron emission tomography (PET) was performed in 16 male IBS patients and 16 age-matched male controls during baseline, no distention, mild and intense distention of the colorectum using barostat bag inflation. Either CRH (2 μg/kg) or saline (1:1) was then injected intravenously and the same distention protocol was repeated. Plasma adrenocorticotropic hormone (ACTH), serum cortisol and plasma noradrenaline levels were measured at each stimulation. At baseline, CRH without colorectal distention induced more activation in the right amygdala in IBS patients than in controls. During intense distention after CRH injection, controls showed significantly greater activation than IBS patients in the right amygdala. Plasma ACTH and serum cortisol secretion showed a significant interaction between drug (CRH, saline) and distention. Plasma noradrenaline at baseline significantly increased after CRH injection compared to before injection in IBS. Further, plasma noradrenaline showed a significant group (IBS, controls) by drug by distention interaction. Exogenous CRH differentially sensitizes brain regions of the emotional-arousal circuitry within the visceral pain matrix to colorectal distention and synergetic activation of noradrenergic function in IBS patients and healthy individuals.
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Affiliation(s)
- Yukari Tanaka
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Motoyori Kanazawa
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Michiko Kano
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
- Department of Frontier Research Institute for Interdisciplinary Sciences, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Joe Morishita
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Toyohiro Hamaguchi
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Lukas Van Oudenhove
- Translational Research Center for Gastrointestinal Disorders (TARGID), Department of Clinical & Experimental Medicine, KU Leuven, Leuven, Belgium
| | - Huynh Giao Ly
- Translational Research Center for Gastrointestinal Disorders (TARGID), Department of Clinical & Experimental Medicine, KU Leuven, Leuven, Belgium
| | - Patrick Dupont
- Laboratory for Cognitive Neurology, Department of Neurosciences, KU Leuven, Leuven, Belgium
| | - Jan Tack
- Translational Research Center for Gastrointestinal Disorders (TARGID), Department of Clinical & Experimental Medicine, KU Leuven, Leuven, Belgium
| | - Takuhiro Yamaguchi
- Departments of Biostatistics, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Kazuhiko Yanai
- Departments of Pharmacology, Tohoku University Graduate School of Medicine, Sendai, Japan
- Departments of Cyclotron RI Center, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Manabu Tashiro
- Departments of Cyclotron RI Center, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Shin Fukudo
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
- * E-mail:
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Kanazawa M, Miwa H, Nakagawa A, Kosako M, Akiho H, Fukudo S. Abdominal bloating is the most bothersome symptom in irritable bowel syndrome with constipation (IBS-C): a large population-based Internet survey in Japan. Biopsychosoc Med 2016; 10:19. [PMID: 27274765 PMCID: PMC4893246 DOI: 10.1186/s13030-016-0070-8] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Accepted: 05/16/2016] [Indexed: 12/18/2022] Open
Abstract
Background Abdominal bloating is a common symptom in patients with irritable bowel syndrome with constipation (IBS-C). However, it is not included among the required items in the Rome III diagnostic criteria for IBS. Little is known about an impact of abdominal bloating seen in patients with IBS-C. Using a large population-based sample, the aim of the present study was to investigate what is the most bothersome symptom in subjects with IBS-C. Methods An Internet survey of 30,000 adults drawn from the general public throughout Japan was conducted to identify subtypes of IBS using the Rome III diagnostic questionnaire. Consecutively, the screened subjects with IBS-C and the same number of age- and sex-matched non-IBS subjects who were randomly selected as controls were asked to answer a questionnaire on the degree of anxiety they experienced in their daily lives, thoughts about bowel habit, and their dominant gastrointestinal symptoms together with exacerbation factors (for IBS-C only). Results The screening survey showed that the prevalence of overall IBS was 16.5 % (female 17.4 %, male 15.5 %) and that 2.8 % met the criteria for IBS-C, 4.5 % for IBS with diarrhea (IBS-D) and 8.2 % for mixed IBS (IBS-M). Seven hundred and fifty-nine of 835 (90.9 %) subjects with IBS-C and 746 of 830 (89.9 %) control subjects completed the consecutive questionnaire. IBS-C subjects felt a higher degree of anxiety in their daily lives (p < 0.01) and considered bowel habit to be an indicator of health (p < 0.01) to a greater extent than control subjects. In IBS-C, the degree of anxiety was significantly associated with abdominal discomfort (p < 0.01), pain (p < 0.01) and bloating (p = 0.02), but not with the frequency of bowel habit (p > 0.1). Abdominal bloating was the most bothersome symptom (27.5 %), which was more likely to occur after a meal (52.2 %), at work/school (29.2 %) and during times of stress (26.8 %). Only 4.5 % of IBS-C subjects reported abdominal pain as the ‘most bothersome’ symptom. Conclusions A large population-based Internet survey suggests that abdominal bloating has a great impact on the daily lives of subjects diagnosed with IBS-C. Not only bowel movement/abdominal pain but also abdominal bloating should be evaluated in patients with IBS-C. Electronic supplementary material The online version of this article (doi:10.1186/s13030-016-0070-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Motoyori Kanazawa
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, 2-1 Seiryo, Aoba, Sendai 980-8575 Japan
| | - Hiroto Miwa
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
| | - Ayako Nakagawa
- Japan-Asia Clinical Development 2, Astellas Pharma Inc, Tokyo, Japan
| | - Masanori Kosako
- Japan-Asia Clinical Development 2, Astellas Pharma Inc, Tokyo, Japan
| | - Hiraku Akiho
- Japan-Asia Clinical Development 2, Astellas Pharma Inc, Tokyo, Japan
| | - Shin Fukudo
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, 2-1 Seiryo, Aoba, Sendai 980-8575 Japan
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Sasaki A, Sato N, Suzuki N, Kano M, Tanaka Y, Kanazawa M, Aoki M, Fukudo S. Associations between Single-Nucleotide Polymorphisms in Corticotropin-Releasing Hormone-Related Genes and Irritable Bowel Syndrome. PLoS One 2016; 11:e0149322. [PMID: 26882083 PMCID: PMC4755592 DOI: 10.1371/journal.pone.0149322] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [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: 08/31/2015] [Accepted: 01/29/2016] [Indexed: 12/31/2022] Open
Abstract
UNLABELLED Irritable bowel syndrome (IBS) is a common functional disorder with distinct features of stress-related pathophysiology. A key mediator of the stress response is corticotropin-releasing hormone (CRH). Although some candidate genes have been identified in stress-related disorders, few studies have examined CRH-related gene polymorphisms. Therefore, we tested our hypothesis that single-nucleotide polymorphisms (SNPs) in CRH-related genes influence the features of IBS. METHODS In total, 253 individuals (123 men and 130 women) participated in this study. They comprised 111 IBS individuals and 142 healthy controls. The SNP genotypes in CRH (rs28364015 and rs6472258) and CRH-binding protein (CRH-BP) (rs10474485) were determined by direct sequencing and real-time polymerase chain reaction. The emotional states of the subjects were evaluated using the State-Trait Anxiety Inventory, Perceived Stress Scale, and the Self-rating Depression Scale. RESULTS Direct sequencing of the rs28364015 SNP of CRH revealed no genetic variation among the study subjects. There was no difference in the genotype distributions and allele frequencies of rs6472258 and rs10474485 between IBS individuals and controls. However, IBS subjects with diarrhea symptoms without the rs10474485 A allele showed a significantly higher emotional state score than carriers. CONCLUSIONS These results suggest that the CRH and CRH-BP genes have no direct effect on IBS status. However, the CRH-BP SNP rs10474485 has some effect on IBS-related emotional abnormalities and resistance to psychosocial stress.
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Affiliation(s)
- Ayaka Sasaki
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Naoko Sato
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Naoki Suzuki
- Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Michiko Kano
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Sendai, Japan
| | - Yukari Tanaka
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Motoyori Kanazawa
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Masashi Aoki
- Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Shin Fukudo
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
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Kanazawa M, Nakajima S, Oshima T, Whitehead WE, Sperber AD, Palsson OS, Drossman DA, Miwa H, Fukudo S. Validity and Reliability of the Japanese Version of the Rome III Diagnostic Questionnaire for Irritable Bowel Syndrome and Functional Dyspepsia. J Neurogastroenterol Motil 2015; 21:537-44. [PMID: 26350938 PMCID: PMC4622136 DOI: 10.5056/jnm15016] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Revised: 05/01/2015] [Accepted: 05/05/2015] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND/AIMS Reliable diagnostic instruments for measuring the presence of functional gastrointestinal disorders based on the Rome III criteria have been lacking in Japan. The aims of the present study were to translate and validate the Rome III diagnostic questionnaire which was widely used in Western countries. METHODS The original version of Rome III diagnostic questionnaire was translated from English into Japanese through 3 independent forward translations, resolution, back translation and reconciliation of the differences. Forty-nine patients with irritable bowel syndrome (IBS), 32 patients with functional dyspepsia (FD) and 56 subjects without any current GI symptoms as controls were recruited from three hospitals located in different regions of Japan and completed the IBS and FD diagnostic modules twice within 14 days. Kappa statistic was used to assess test-retest reliability. The sensitivity and specificity of each diagnostic module for distinguishing IBS or FD patients from controls was tested. RESULTS Median kappa statistics were 0.63 for the translated IBS diagnostic module and 0.68 for the FD module. The sensitivity, specificity, and positive predict value of the IBS module against physician diagnosis was 61.2%, 100%, and 100% and those of the FD module was 53.2%, 98.2%, and 94.4%, respectively. Meanwhile, IBS patients were significantly more likely to report blood in stools compared to controls (18.4% vs 1.8%, P < 0.01). CONCLUSIONS The IBS and FD diagnostic modules on the Japanese version of the Rome III diagnostic questionnaire are valid and reliable. Further studies are warranted to elucidate the diagnostic utility of the red flag questionnaire.
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Affiliation(s)
- Motoyori Kanazawa
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai,
Japan
| | - Shigemi Nakajima
- Department of Medicine, Gastroenterology and Health Care, Japan Community Health care Organization Shiga Hospital, Otsu, Shiga,
Japan
| | - Tadayuki Oshima
- Division of Upper Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Hyogo,
Japan
| | - William E Whitehead
- Center for Functional GI and Motility Disorders, University of North Carolina at Chapel Hill, Chapel Hill, NC,
USA
| | - Ami D Sperber
- Department of Gastroenterology, Tel Aviv Medical Center, Levahim,
Israel
| | - Olafur S Palsson
- Center for Functional GI and Motility Disorders, University of North Carolina at Chapel Hill, Chapel Hill, NC,
USA
| | - Douglas A Drossman
- Center for Functional GI and Motility Disorders, University of North Carolina at Chapel Hill, Chapel Hill, NC,
USA
| | - Hiroto Miwa
- Division of Upper Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Hyogo,
Japan
| | - Shin Fukudo
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai,
Japan
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40
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Amano T, Ariga H, Kurematsu A, Yamato S, Morioka S, Masaka A, Kanazawa M, Fukudo S. Effect of 5-hydroxytryptamine receptor 4 agonist mosapride on human gastric accommodation. Neurogastroenterol Motil 2015; 27:1303-9. [PMID: 26303048 DOI: 10.1111/nmo.12623] [Citation(s) in RCA: 14] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Accepted: 05/26/2015] [Indexed: 02/08/2023]
Abstract
BACKGROUND Impaired gastric accommodation is one of the major features of functional dyspepsia. Mosapride citrate is a 5-hydroxytryptamine receptor 4 (5-HT4) agonist, which is shown to improve upper abdominal symptoms. However, effect of mosapride on gastric accommodation was not clear. We tested the hypothesis that mosapride enhances the gastric accommodation in normal individuals. METHODS Fourteen male healthy volunteers completed this study. Single administration of mosapride or placebo was performed randomly with more than 1-week interval. Subjects swallowed a triple-lumen polyvinyl tube with a polyethylene bag. The bag was positioned in the proximal stomach and the minimal distending pressure (MDP) was determined. The ramp distension starting from the MDP was then performed and subjects were instructed to score their perception using ordinate scales. Next the intra-bag pressure was set at MDP + 2 mmHg and a liquid meal was administered 30 min later, and the intra-bag volume was recorded for 60 min. We compared the MDP, perception scores, and the intra-bag volume changes by administering placebo and mosapride. KEY RESULTS Minimal distending pressure was not significantly different in subjects receiving mosapride or placebo. Treatment with mosapride had no effect on intra-bag pressures or volumes inducing first sensation or discomfort. Gastric accommodation, expressed as the difference between pre- and postmeal intra-bag volumes, and the percent change of the intra-bag volumes by the meal was significantly enhanced by mosapride compared with placebo. CONCLUSIONS & INFERENCES This is the first study clearly demonstrating that single administration of 5-HT4 agonist can enhance gastric accommodation in humans. (Umin.ac.jp, number UMIN000014063).
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Affiliation(s)
- T Amano
- Department of Gastroenterology, National Center of Neurology and Psychiatry, Tokyo, Japan.,Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - H Ariga
- Department of Gastroenterology, National Center of Neurology and Psychiatry, Tokyo, Japan.,Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - A Kurematsu
- Department of Gastroenterology, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - S Yamato
- Department of Gastroenterology, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - S Morioka
- Department of Pharmacology, National Center of Neurology and Psychiatry, Tokyo, Japan
| | | | - M Kanazawa
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - S Fukudo
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
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Fukudo S, Kaneko H, Akiho H, Inamori M, Endo Y, Okumura T, Kanazawa M, Kamiya T, Sato K, Chiba T, Furuta K, Yamato S, Arakawa T, Fujiyama Y, Azuma T, Fujimoto K, Mine T, Miura S, Kinoshita Y, Watanabe M, Sugano K, Shimosegawa T. Evaluation of Kampo medicine in the clinical practice guideline for irritable bowel syndrome. J Gastroenterol 2015; 50:817-8. [PMID: 26100007 DOI: 10.1007/s00535-015-1074-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2015] [Accepted: 03/31/2015] [Indexed: 02/04/2023]
Affiliation(s)
- Shin Fukudo
- Japanese Society of Gastroenterology, K-18 Building 8F, 8-9-13 Ginza, Chuou, Tokyo, 104-0061, Japan,
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Yamada A, Kanazawa M, Komagamine Y, Minakuchi S. Association between tongue and lip functions and masticatory performance in young dentate adults. J Oral Rehabil 2015; 42:833-9. [PMID: 26095117 DOI: 10.1111/joor.12319] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/17/2015] [Indexed: 11/26/2022]
Abstract
Motor functions of masticatory organs such as the tongue, lips, cheeks and mandible are known to deteriorate with age, thereby influencing masticatory performance. However, there are few reports on the relationships between tongue and lip functions and masticatory performance. To investigate the relationship between tongue and lip functions and comprehensive masticatory performance, by evaluating crushing, mixing and shearing abilities in young dentate adults. Participants comprised 51 dentate adults with a mean age of 25 years. Maximum tongue pressure and oral diadochokinesis were measured to evaluate tongue and lip functions. A multiple sieving method using peanuts was performed to evaluate crushing ability. A colour-changeable chewing gum was performed to evaluate mixing ability. A test gummy jelly was performed to evaluate shearing ability. The relationship between tongue and lip functions and each masticatory performance was assessed using Pearson's correlation coefficients. In addition, stepwise multiple regression analysis was performed to identify predictors of crushing ability. Crushing ability was significantly correlated with maximum tongue pressure and the number of repetitions of the syllables /pa/, /ta/ and /ka/. Maximum tongue pressure and number of repetitions of the syllable /pa/ were identified as significant predictors for crushing ability. Mixing ability was significantly correlated with the number of repetitions of the syllable /pa/. Shearing ability was not significantly correlated with tongue and lip functions. Masticatory performance during the chewing of brittle foods such as peanuts and solid foods such as chewing gum appears to be correlated with tongue and lip functions.
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Affiliation(s)
- A Yamada
- Gerodontology and Oral rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - M Kanazawa
- Gerodontology and Oral rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Y Komagamine
- Gerodontology and Oral rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - S Minakuchi
- Gerodontology and Oral rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
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Himukai T, Tsunashima Y, Kanazawa M, Mizota M, Shioyama Y, Endo M. SU-E-T-601: Patient Specific QA Check for Radiotherapy with Carbon Beam at SAGA HIMAT. Med Phys 2015. [DOI: 10.1118/1.4924964] [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: 11/07/2022] Open
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44
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Su J, Tanaka Y, Muratsubaki T, Kano M, Kanazawa M, Fukudo S. Injection of corticotropin-releasing hormone into the amygdala aggravates visceral nociception and induces noradrenaline release in rats. Neurogastroenterol Motil 2015; 27:30-9. [PMID: 25359531 DOI: 10.1111/nmo.12462] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Accepted: 09/26/2014] [Indexed: 12/12/2022]
Abstract
BACKGROUND Corticotropin-releasing hormone (CRH) and its receptor 1 (CRH-R1) play an important role in the colonic response to stress. The central nucleus of the amygdala (CeA) is a major extrahypothalamic site that contains a large number of neurons expressing both CRH and CRH-R1. Here, we verified the hypothesis that CRH in the CeA sensitizes visceral nociception via CRH-R1 with release of noradrenaline, dopamine, and serotonin (5-HT) in the CeA. METHODS In male Wistar rats, visceral sensitivity was quantified by recording the visceromotor response to colorectal distension (CRD) with administration of vehicle, CRH, or the CRH-R1 antagonist CP-154526+ CRH or CRH-R1 antagonist CP-154526 alone into the CeA. Simultaneously, extracellular levels of noradrenaline, dopamine, and 5-HT were measured in the CeA using microdialysis. All data were obtained under restraint conditions. KEY RESULTS Administration of CRH into the CeA significantly increased the number of abdominal muscle contractions in response to CRD. CP-154526 significantly blocked the number of abdominal muscle contractions in response to CRD with the administration of CRH into the CeA. Noradrenaline in the CeA was increased by CRD, further increased by CRH, and inhibited by CRH-R1 antagonist. Dopamine in the CeA was also exaggerated by CRH but was not inhibited by CRH-R1 antagonist. 5-HT in the CeA was unchanged. CONCLUSIONS & INFERENCES These results suggest that CRH in the CeA sensitizes visceral nociception via CRH-R1 with release of noradrenaline.
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Affiliation(s)
- J Su
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
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Fukudo S, Kaneko H, Akiho H, Inamori M, Endo Y, Okumura T, Kanazawa M, Kamiya T, Sato K, Chiba T, Furuta K, Yamato S, Arakawa T, Fujiyama Y, Azuma T, Fujimoto K, Mine T, Miura S, Kinoshita Y, Sugano K, Shimosegawa T. Evidence-based clinical practice guidelines for irritable bowel syndrome. J Gastroenterol 2015; 50:11-30. [PMID: 25500976 DOI: 10.1007/s00535-014-1017-0] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Accepted: 11/06/2014] [Indexed: 02/05/2023]
Abstract
New strategies for the care of irritable bowel syndrome (IBS) are developing and several novel treatments have been globally produced. New methods of care should be customized geographically because each country has a specific medical system, life style, eating habit, gut microbiota, genes and so on. Several clinical guidelines for IBS have been proposed and the Japanese Society of Gastroenterology (JSGE) subsequently developed evidence-based clinical practice guidelines for IBS. Sixty-two clinical questions (CQs) comprising 1 definition, 6 epidemiology, 6 pathophysiology, 10 diagnosis, 30 treatment, 4 prognosis, and 5 complications were proposed and statements were made to answer to CQs. A diagnosis algorithm and a three-step treatment was provided for patients with chronic abdominal pain or abdominal discomfort and/or abnormal bowel movement. If more than one alarm symptom/sign, risk factor and/or routine examination is positive, colonoscopy is indicated. If all of them, or the subsequent colonoscopy, are/is negative, Rome III or compatible criteria is applied. After IBS diagnosis, step 1 therapy consisting of diet therapy, behavioral modification and gut-targeted pharmacotherapy is indicated for four weeks. Non-responders to step 1 therapy proceed to the second step that includes psychopharmacological agents and simple psychotherapy for four weeks. In the third step, for patients non-responsive to step 2 therapy, a combination of gut-targeted pharmacotherapy, psychopharmacological treatments and/or specific psychotherapy is/are indicated. Clinical guidelines and consensus for IBS treatment in Japan are well suited for Japanese IBS patients; as such, they may provide useful insight for IBS treatment in other countries around the world.
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Affiliation(s)
- Shin Fukudo
- Guidelines Committee for creating and evaluating the "Evidence-based clinical practice guidelines for irritable bowel syndrome", the Japanese Society of Gastroenterology (JSGE), K-18 Building 8F, 8-9-13 Ginza, Chuo, Tokyo, 104-0061, Japan,
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Horie T, Kanazawa M, Komagamine Y, Hama Y, Minakuchi S. Association between near occlusal contact areas and mixing ability. J Oral Rehabil 2014; 41:829-35. [DOI: 10.1111/joor.12216] [Citation(s) in RCA: 19] [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] [Accepted: 07/30/2014] [Indexed: 01/15/2023]
Affiliation(s)
- T. Horie
- Gerodontology and Oral rehabilitation; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
| | - M. Kanazawa
- Gerodontology and Oral rehabilitation; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
- Oral Health and Society; Faculty of Dentistry; McGill University; Montreal QC Canada
| | - Y. Komagamine
- Gerodontology and Oral rehabilitation; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
| | - Y. Hama
- Gerodontology and Oral rehabilitation; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
| | - S. Minakuchi
- Gerodontology and Oral rehabilitation; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
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47
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Kanazawa M, Palsson OS, van Tilburg MA, Gangarosa LM, Fukudo S, Whitehead. WE. Motility response to colonic distention is increased in postinfectious irritable bowel syndrome (PI-IBS). Neurogastroenterol Motil 2014; 26:696-704. [PMID: 24602083 PMCID: PMC4739722 DOI: 10.1111/nmo.12318] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2013] [Accepted: 01/19/2014] [Indexed: 12/21/2022]
Abstract
BACKGROUND Acute intestinal infection leads to persistent intestinal smooth muscle hypercontractility and pain hypersensitivity after resolution of the infection in animal models. We investigated whether postinfectious irritable bowel syndrome (PI-IBS) is associated with abnormalities in phasic contractions of the colon, smooth muscle tone, and pain sensitivity compared to non-PI-IBS (NI-IBS) or healthy controls (HC). METHODS Two hundred and eighteen Rome III-positive IBS patients and 43 HC participated. IBS patients were designated PI-IBS, if their IBS symptoms began following an episode of gastroenteritis characterized by two or more of: fever, vomiting, or diarrhea. Pain threshold to phasic distentions of the descending colon was assessed using a barostat. Colonic motility was assessed with the barostat bag minimally inflated to the individual operating pressure (IOP), at 20 mmHg above the IOP, and following a test meal. IBS symptom severity and psychological symptoms were assessed by the IBS Severity Scale (IBS-SS) and the Brief Symptom Inventory-18 (BSI-18). KEY RESULTS Twenty two (10.1%) met criteria for PI-IBS. Both IBS and HC groups showed a significant increase in motility index during intraluminal distention and following meals. The magnitude of the response to distention above (orad to) the balloon was significantly greater in PI-IBS compared with NI-IBS (p < 0.05) or HC (p < 0.01). Differences between PI-IBS and NI-IBS were not significant for IBS symptom severity, pain threshold, barostat bag volumes, or any psychological score on the BSI-18. CONCLUSIONS & INFERENCES Patients with PI-IBS have greater colonic hypercontractility than NI-IBS. We speculate that sustained mild mucosal inflammation may cause this colonic irritability.
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Affiliation(s)
- Motoyori Kanazawa
- Center for Functional GI and Motility Disorders, University of North Carolina at Chapel Hill, Chapel Hill, Campus Box 7555, Chapel Hill, NC 27599-7555, USA,Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, 2-1 Seiryo, Aoba, Sendai 980-8575, Japan
| | - Olafur S. Palsson
- Center for Functional GI and Motility Disorders, University of North Carolina at Chapel Hill, Chapel Hill, Campus Box 7555, Chapel Hill, NC 27599-7555, USA
| | - Miranda A.L. van Tilburg
- Center for Functional GI and Motility Disorders, University of North Carolina at Chapel Hill, Chapel Hill, Campus Box 7555, Chapel Hill, NC 27599-7555, USA
| | - Lisa M. Gangarosa
- Center for Functional GI and Motility Disorders, University of North Carolina at Chapel Hill, Chapel Hill, Campus Box 7555, Chapel Hill, NC 27599-7555, USA
| | - Shin Fukudo
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, 2-1 Seiryo, Aoba, Sendai 980-8575, Japan
| | - William E. Whitehead.
- Center for Functional GI and Motility Disorders, University of North Carolina at Chapel Hill, Chapel Hill, Campus Box 7555, Chapel Hill, NC 27599-7555, USA
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Saigo T, Tayama J, Hamaguchi T, Nakaya N, Tomiie T, Bernick PJ, Kanazawa M, Labus JS, Naliboff BD, Shirabe S, Fukudo S. Gastrointestinal specific anxiety in irritable bowel syndrome: validation of the Japanese version of the visceral sensitivity index for university students. Biopsychosoc Med 2014; 8:10. [PMID: 24655428 PMCID: PMC3994456 DOI: 10.1186/1751-0759-8-10] [Citation(s) in RCA: 22] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Accepted: 03/11/2014] [Indexed: 12/23/2022] Open
Abstract
OBJECTIVE The visceral sensitivity index (VSI) is a useful self-report measure of the gastrointestinal symptom-specific anxiety (GSA) of patients with irritable bowel syndrome (IBS). Previous research has shown that worsening GSA in IBS patients is related to the severity of GI symptoms, suggesting that GSA is an important endpoint for intervention. However, there is currently no Japanese version of the VSI. We therefore translated the VSI into Japanese (VSI-J) and verified its reliability and validity. MATERIAL AND METHODS Participants were 349 university students aged 18 and 19 years and recruited from an academic class. We analyzed data from the VSI-J, Anxiety Sensitivity Index (ASI), Hospital Anxiety and Depression scale (HAD), and Irritable Bowel Syndrome Severity Index (IBS-SI). The internal consistency, stability, and factor structure of the VSI-J and its associations with anxiety, depression and severity measures were investigated. RESULTS The factor structure of the VSI-J is unidimensional and similar to that of the original VSI (Cronbach's α = 0.93). Construct validity was demonstrated by significant correlations with ASI (r = 0.43, p < 0.0001), HAD-ANX (r = 0.19, p = 0.0003), and IBS-SI scores (r = 0.45, p < 0.0001). Furthermore, the VSI-J was a significant predictor of severity scores on the IBS-SI and demonstrated good discriminant (p < 0.0001) and incremental (p < 0.0001) validity. CONCLUSION These findings suggest that the VSI-J is a reliable and valid measure of visceral sensitivity.
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Affiliation(s)
- Tatsuo Saigo
- Center for Health and Community Medicine, Nagasaki University, Nagasaki, Japan
- Department of Preventive Medicine, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Jun Tayama
- Center for Health and Community Medicine, Nagasaki University, Nagasaki, Japan
| | - Toyohiro Hamaguchi
- Department of Occupational Therapy, School of Health and Social Services, Saitama Prefectural University, Saitama, Japan
| | - Naoki Nakaya
- Tohoku Medical Megabank Organization, Tohoku University, Miyagi, Japan
| | - Tadaaki Tomiie
- Department of Clinical Psychology, School of Psychological Science, Health Sciences University of Hokkaido, Hokkaido, Japan
| | - Peter J Bernick
- Center for Health and Community Medicine, Nagasaki University, Nagasaki, Japan
| | - Motoyori Kanazawa
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, 2-1 Seiryo, Aoba, Sendai, Miyagi 980-8575, Japan
| | - Jennifer S Labus
- Department of Medicine, Center for Neurobiology of Stress, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Bruce D Naliboff
- Department of Medicine, Center for Neurobiology of Stress, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Susumu Shirabe
- Center for Health and Community Medicine, Nagasaki University, Nagasaki, Japan
| | - Shin Fukudo
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, 2-1 Seiryo, Aoba, Sendai, Miyagi 980-8575, Japan
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Souda H, Yamada S, Kanai T, Takeshita E, Muramatsu M, Kitagawa A, Kanazawa M, Izumiya H, Kano Y. Operation status of the electron cyclotron resonance ion source at Gunma University. Rev Sci Instrum 2014; 85:02A934. [PMID: 24593513 DOI: 10.1063/1.4833922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
An ECR ion source of Gunma University Heavy Ion Medical Center, so-called KeiGM [M. Muramatsu, A. Kitagawa, Y. Sakamoto, S. Sato, Y. Sato, H. Ogawa, S. Yamada, H. Ogawa, Y. Yoshida, and A. G. Drentje, Rev. Sci. Instrum. 76, 113304 (2005)], has been operated for cancer therapy and physical/biological experiment since 2010. KeiGM produces typically 230 μA of 10 keV/u C(4+) ions from CH4 gases. The vacuum pressure is kept between 1.2 × 10(-4) and 1.7 × 10(-4) Pa so as to suppress the pulse-to-pulse current fluctuation within ±10%. The extraction electrode is cleaned every 6-8 months in order to remove deposited carbon, which increases the leak current and discharge. In order to investigate the possibility of long-term operation without such maintenances, oxygen aging for the cleaning of the extraction electrode has been tested in the test bench. The same-designed ion sources at National Institute of Radiological Sciences and SAGA Heavy Ion Medical Accelerator in Tosu (SAGA-HIMAT) are also operated with stable C(4+) current, which are suitable for the continuous operation for cancer therapy.
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Affiliation(s)
- H Souda
- Gunma University Heavy Ion Medical Center, Maebashi, Gunma 371-0044, Japan
| | - S Yamada
- Gunma University Heavy Ion Medical Center, Maebashi, Gunma 371-0044, Japan
| | - T Kanai
- Gunma University Heavy Ion Medical Center, Maebashi, Gunma 371-0044, Japan
| | - E Takeshita
- Kanagawa Cancer Center, Yokohama 241-8515, Japan
| | - M Muramatsu
- National Institute of Radiological Sciences, Chiba 263-8555, Japan
| | - A Kitagawa
- National Institute of Radiological Sciences, Chiba 263-8555, Japan
| | - M Kanazawa
- SAGA Heavy Ion Medical Accelerator in Tosu, Tosu, Saga 841-0071, Japan
| | - H Izumiya
- Accelerator Engineering Corporation, Chiba 263-0043, Japan
| | - Y Kano
- Accelerator Engineering Corporation, Chiba 263-0043, Japan
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Tanaka H, Kanazawa M, Kawakami T, Kido K, Kifune M, Kubo M, Tamimoto Y, Tokitou T, Tokushige A, Nibu K, Miyazaki N, Mitasato H, Yamamoto K, Yamamoto M, Watada T, Fukuta S, Taguchi T. FRI0236 Efficacy and safety of tocilizumab therapy in rheumatoid arthritis: prevalence and predictive factors of sustained remission. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2013-eular.1363] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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