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Morita E, Kadotani H, Yamada N, Sasakabe T, Kawai S, Naito M, Tamura T, Wakai K. The Inverse Association between the Frequency of Forest Walking (Shinrin-yoku) and the Prevalence of Insomnia Symptoms in the General Japanese Population: A Japan Multi-Institutional Collaborative Cohort Daiko Study. Int J Environ Res Public Health 2024; 21:350. [PMID: 38541349 PMCID: PMC10970638 DOI: 10.3390/ijerph21030350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 03/01/2024] [Accepted: 03/03/2024] [Indexed: 04/07/2024]
Abstract
Since a single forest walk (Shinrin-yoku or forest bathing) session is reported to improve sleep temporarily, occasional forest walks may have a positive effect on daily sleep. Therefore, this study aimed to examine whether more frequent forest walking is associated with better daily sleep conditions. Data from the second survey of the Japan Multi-Institutional Collaborative Cohort (J-MICC) Daiko Study conducted among residents of Nagoya City, Japan, were used. The study design was a cross-sectional study. In total, 2044 participants (529 men and 1515 women; age, mean ± standard deviation: 58.8 ± 9.9 years) were included in the analysis. Frequent forest walks were associated with a low percentage of insomnia symptoms (Insomnia Severity Index ≥10) in women, but not in men. The adjusted odds ratio for the group that rarely took forest walks with reference to the group that engaged in the activity once a month or more often was 2.04 (95% confidence interval: 1.29-3.23) in women. Forest walk frequency was not significantly associated with sleep duration or sleep efficiency as measured by actigraphy in either men or women. In conclusion, the results suggested that increasing the frequency of forest walks or Shinrin-yoku may be effective in preventing insomnia in women.
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Grants
- Priority Areas of Cancer (No. 17015018) Ministry of Education, Culture, Sports, Science and Technology, Japan.
- Innovative Areas (No. 221S0001) Ministry of Education, Culture, Sports, Science and Technology, Japan.
- JSPS KAKENHI Grant (No. 16H06277, 18K11065, 21H02246, 22H04923 and No. 26507005) Ministry of Education, Culture, Sports, Science and Technology, Japan.
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Affiliation(s)
- Emi Morita
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Japan
- Forestry and Forest Products Research Institute, Forest Research and Management Organization, 1 Matsunosato, Tsukuba 305-8687, Japan
| | - Hiroshi Kadotani
- Department of Psychiatry, Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu 520-2192, Japan; (H.K.); (N.Y.)
| | - Naoto Yamada
- Department of Psychiatry, Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu 520-2192, Japan; (H.K.); (N.Y.)
- Kanbayashi Memorial Hospital, 89-1 Orikuchinishi, Okucho, Ichinomiya 491-0201, Japan
| | - Tae Sasakabe
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-Cho, Nagoya 466-8550, Japan; (T.S.); (T.T.); (K.W.)
- Department of Public Health, Aichi Medical University School of Medicine, Nagakute 480-1195, Japan
| | - Sayo Kawai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-Cho, Nagoya 466-8550, Japan; (T.S.); (T.T.); (K.W.)
- Department of Public Health, Aichi Medical University School of Medicine, Nagakute 480-1195, Japan
| | - Mariko Naito
- Department of Oral Epidemiology, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan;
| | - Takashi Tamura
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-Cho, Nagoya 466-8550, Japan; (T.S.); (T.T.); (K.W.)
| | - Kenji Wakai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-Cho, Nagoya 466-8550, Japan; (T.S.); (T.T.); (K.W.)
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2
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Sasakabe T, Obata Y, Kawai S, Lin Y, Kikuchi S. Comparison of Gastric Cancer Risk Classifications Using Conventional and New Pepsinogen Criteria. Gastroenterol Res Pract 2023; 2023:7646536. [PMID: 37287936 PMCID: PMC10243942 DOI: 10.1155/2023/7646536] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 03/06/2023] [Accepted: 05/11/2023] [Indexed: 06/09/2023] Open
Abstract
Background New serum pepsinogen (PG) criteria have been shown to indicate more accurately infection with Helicobacter pylori (H. pylori). We sought to improve risk classification for gastric cancer by adopting the new PG criteria with the addition of an H. pylori antibody test. Methods The study participants were 275 patients with gastric cancer and 275 apparently healthy controls from case-control study data. We cross-sectionally compared the results of gastric cancer risk classifications that were based on a combination of the new PG criteria (PG II ≥ 10 ng/mL or PG I/II ≤ 5) and an H. pylori antibody test with those that were based on a combination of the conventional criteria (PG I ≤ 70 ng/mL and PG I/PG II ≤ 3) and an H. pylori antibody test. Results Applying the conventional criteria resulted in 89 controls being classified as low risk. Applying the new criteria resulted in 23 controls (bootstrapped 95% confidence intervals [CI]: 14, 32) being additionally classified as high risk. Eight patients with gastric cancer were classified as low risk using the conventional criteria; however, six of these patients were classified as high risk by the new criteria (bootstrapped 95% CI: 2, 11). Conclusions Compared with the conventional criteria, the new PG criteria with H. pylori antibody reduced instances of gastric cancer cases being misclassified as low risk. These findings suggest that the new PG criteria may help identify individuals at high risk of developing gastric cancer.
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Affiliation(s)
- Tae Sasakabe
- Department of Public Health, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
| | - Yuki Obata
- College of Pharmacy, Kinjo Gakuin University, Nagoya, Aichi, Japan
| | - Sayo Kawai
- Department of Public Health, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
| | - Yingsong Lin
- Department of Public Health, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
| | - Shogo Kikuchi
- Department of Public Health, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
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3
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Kikuchi S, Obata Y, Sasakabe T, Kawai S, Wang C, Lin Y. Relative risk of gastric cancer between those with and without
Helicobacter pylori
infection history in Japan. JGH Open 2022; 6:166-170. [PMID: 35355671 PMCID: PMC8938751 DOI: 10.1002/jgh3.12714] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 01/17/2022] [Accepted: 02/02/2022] [Indexed: 12/02/2022]
Abstract
Background and Aim The causal relationship between Helicobacter pylori (H. pylori) infection and gastric cancer has been established. Although the magnitude of the carcinogenic effect of H. pylori is the next concern, it has not been sufficiently evaluated in Japan. Spontaneous disappearance of H. pylori infection may have provoked underestimation of the carcinogenic effect of the infection. To reduce the influence, a comparison should be carried out between subjects with and without the infection history. Cutoff values of H. pylori antibody lower than the manufacturer's recommendation are known to be more appropriate to diagnose history of H. pylori infection. The aim was to evaluate the carcinogenic effect of H. pylori. Methods A case–control study consisting of 275 gastric cancer patients and 275 age‐ and sex‐matched controls was performed. Serum H. pylori antibody was measured using the “JHM‐Cap” kit with a domestic antigen (cut value of the manufacturer's recommendation was 2.3 EV: ELISA value). Using a conditional logistic model, the odds ratios (ORs) for five cutoff values adjusted for smoking and drinking doses were calculated. Results For cutoff values of 1.25, 1.5, 1.75, 2.0, and 2.3 EV, the ORs (95% confidence intervals) were 67.7 (9.1, 502), 37.2 (8.8, 157), 21.3 (9.0, 60.2), 25.5 (9.0, 72.7), and 25.9 (9.2, 73.2), respectively. Conclusions These results suggest that the risk ratio of gastric cancer between subjects with and without history of H. pylori infection in Japan may exceed 20.
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Affiliation(s)
- Shogo Kikuchi
- Department of Public Health Aichi Medical University School of Medicine Nagakute Aichi Japan
| | - Yuki Obata
- Department of Public Health Aichi Medical University School of Medicine Nagakute Aichi Japan
| | - Tae Sasakabe
- Department of Public Health Aichi Medical University School of Medicine Nagakute Aichi Japan
| | - Sayo Kawai
- Department of Public Health Aichi Medical University School of Medicine Nagakute Aichi Japan
| | - Chaochen Wang
- Department of Public Health Aichi Medical University School of Medicine Nagakute Aichi Japan
| | - Yingsong Lin
- Department of Public Health Aichi Medical University School of Medicine Nagakute Aichi Japan
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4
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Kawai S, Wang C, Lin Y, Sasakabe T, Okuda M, Kikuchi S. Lifetime incidence risk for gastric cancer in the Helicobacter pylori-infected and uninfected population in Japan: A Monte Carlo simulation study. Int J Cancer 2022; 150:18-27. [PMID: 34449868 PMCID: PMC9292274 DOI: 10.1002/ijc.33773] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 08/02/2021] [Accepted: 08/16/2021] [Indexed: 02/06/2023]
Abstract
Helicobacter pylori (H. pylori) infection is considered the leading cause of gastric cancer. Gastric cancer is currently a common cancer with high incidence and mortality rates, but it is expected that the incidence rate will gradually decrease as the H. pylori infection prevalence decreases in the future. When evaluating the effectiveness of gastric cancer prevention strategies, it is essential to note the differences in long‐term cumulative risks between H. pylori‐infected and uninfected populations, but this has not yet been precisely evaluated. In our study, we aimed to estimate the cumulative incidence risks of developing gastric cancer from birth to 85 years among H. pylori‐infected and uninfected populations by using population‐based cancer registry data and birth year‐specific H. pylori infection prevalence rates. Death from gastric cancer and other causes of death were considered in the estimations of the adjusted cumulative incidence risks stratified by sex and H. pylori infection status. After performing 5000 Monte Carlo simulations with repeated random sampling using observed cancer incidence in selected three prefectures (Fukui, Nagasaki, Yamagata) of prefectural population‐based cancer registry in Japan, the mean adjusted cumulative incidence risk for gastric cancer in the H. pylori‐infected population was 17.0% for males and 7.7% for females and 1.0% for males and 0.5% for females in the uninfected population. These results calculated with Japanese cancer registry data may be useful in considering and evaluating future prevention strategies for gastric cancer in Japan.
What's new?
Helicobacter pylori infection is considered the leading cause of gastric cancer. This study estimated the cumulative incidence risk for gastric cancer from birth to 85 years of age, stratified by H. pylori infection status, for the first time in Japan. The cumulative risk among H. pylori‐infected individuals was 17.0% in males and 7.7% in females, after adjusting for gastric cancer incidence and other causes of death. The cumulative risk in the population without H. pylori infection was low. These results offer essential information for future cost‐effectiveness and cost‐benefit analyses and new gastric cancer prevention programs in Japan.
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Affiliation(s)
- Sayo Kawai
- Department of Public Health, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
| | - Chaochen Wang
- Department of Public Health, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
| | - Yingsong Lin
- Department of Public Health, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
| | - Tae Sasakabe
- Department of Public Health, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
| | - Masumi Okuda
- Department of Pediatrics, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan
| | - Shogo Kikuchi
- Department of Public Health, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
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5
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Lin Y, Kawai S, Sasakabe T, Nagata C, Naito M, Tanaka K, Sugawara Y, Mizoue T, Sawada N, Matsuo K, Kitamura T, Utada M, Ito H, Shimazu T, Kikuchi S, Inoue M. Corrigendun to: Effects of Helicobacter pylori eradication on gastric cancer incidence in the Japanese population: a systematic evidence review. Jpn J Clin Oncol 2021; 51:1693. [PMID: 34518878 DOI: 10.1093/jjco/hyab150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 04/01/2021] [Indexed: 11/12/2022] Open
Affiliation(s)
- Yingsong Lin
- Department of Public Health, Aichi Medical University School of Medicine, Aichi, Japan
| | - Sayo Kawai
- Department of Public Health, Aichi Medical University School of Medicine, Aichi, Japan
| | - Tae Sasakabe
- Department of Public Health, Aichi Medical University School of Medicine, Aichi, Japan
| | - Chisato Nagata
- Department of Epidemiology and Preventive Medicine, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Mariko Naito
- Department of Oral Epidemiology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Keitaro Tanaka
- Department of Preventive Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Yumi Sugawara
- Division of Epidemiology, Department of Health Informatics and Public Health, Tohoku University School of Public Health, Graduate School of Medicine, Sendai, Japan
| | - Tetsuya Mizoue
- Department of Epidemiology and Prevention, Center for Clinical Sciences, National Center for Global Health and Medicine, Tokyo, Japan
| | - Norie Sawada
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan
| | - Keitaro Matsuo
- Division of Epidemiology and Prevention, Aichi Cancer Center Research Institute, Nagoya, Japan.,Division of Cancer Epidemiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tetsuhisa Kitamura
- Department of Environmental Medicine and Population Sciences, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Mai Utada
- Department of Epidemiology, Radiation Effects Research Foundation, Hiroshima, Japan
| | - Hidemi Ito
- Division of Cancer Information and Control, Aichi Cancer Center Research Institute, Nagoya, Japan.,Division of Descriptive Cancer Epidemiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Taichi Shimazu
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan
| | - Shogo Kikuchi
- Department of Public Health, Aichi Medical University School of Medicine, Aichi, Japan
| | - Manami Inoue
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan
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6
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Lin Y, Kawai S, Sasakabe T, Nagata C, Naito M, Tanaka K, Sugawara Y, Mizoue T, Sawada N, Matsuo K, Kitamura T, Utada M, Ito H, Shimazu T, Kikuchi S, Inoue M. Effects of Helicobacter pylori eradication on gastric cancer incidence in the Japanese population: a systematic evidence review. Jpn J Clin Oncol 2021; 51:1158-1170. [PMID: 33893508 DOI: 10.1093/jjco/hyab055] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [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: 02/16/2021] [Accepted: 04/01/2021] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND In Japan, there are ongoing efforts to shift the gastric cancer prevention and control policy priorities from barium-based screening to Helicobacter pylori (H. pylori)-oriented primary prevention. A comprehensive summary of the evidence regarding the effects of H. pylori eradication on the risk of gastric cancer could inform policy decisions. METHODS We conducted a systematic review and meta-analysis of published studies evaluating the effectiveness of H. pylori eradication for the prevention of gastric cancer in otherwise healthy individuals (primary prevention) and early gastric cancer patients (tertiary prevention). RESULTS In total, 19 studies were included. Three moderate-quality observational cohort studies showed that H. pylori eradication may be associated with a decreased risk of gastric cancer in healthy asymptomatic Japanese people. There is moderate certainty regarding the effectiveness of H. pylori eradication in patients with gastrointestinal diseases, such as peptic ulcers. A meta-analysis of 10 observational studies with otherwise healthy individuals (mainly peptic ulcer patients) yielded an overall odds ratio of 0.34 (95% CI: 0.25-0.46). Regarding tertiary prevention, the overall odds ratio for developing metachronous gastric cancer was 0.42 (95% CI: 0.35-0.51) in the eradication group in a meta-analysis of nine studies involving early gastric cancer patients who underwent endoscopic resection. CONCLUSION H. pylori eradication is effective in preventing gastric cancer in the Japanese population, regardless of symptoms. Well-designed, large cohort studies are warranted to determine the long-term efficacy and safety of H. pylori eradication in the context of reducing the gastric cancer burden through population-based screening and treatment.
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Affiliation(s)
- Yingsong Lin
- Department of Public Health, Aichi Medical University School of Medicine, Aichi, Japan
| | - Sayo Kawai
- Department of Public Health, Aichi Medical University School of Medicine, Aichi, Japan
| | - Tae Sasakabe
- Department of Public Health, Aichi Medical University School of Medicine, Aichi, Japan
| | - Chisato Nagata
- Department of Epidemiology and Preventive Medicine, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Mariko Naito
- Department of Oral Epidemiology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Keitaro Tanaka
- Department of Preventive Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Yumi Sugawara
- Division of Epidemiology, Department of Health Informatics and Public Health, Tohoku University School of Public Health, Graduate School of Medicine, Sendai, Japan
| | - Tetsuya Mizoue
- Department of Epidemiology and Prevention, Center for Clinical Sciences, National Center for Global Health and Medicine, Tokyo, Japan
| | - Norie Sawada
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan
| | - Keitaro Matsuo
- Division of Epidemiology and Prevention, Aichi Cancer Center Research Institute, Nagoya, Japan.,Division of Cancer Epidemiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tetsuhisa Kitamura
- Department of Environmental Medicine and Population Sciences, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Mai Utada
- Department of Epidemiology, Radiation Effects Research Foundation, Hiroshima, Japan
| | - Hidemi Ito
- Division of Cancer Information and Control, Aichi Cancer Center Research Institute, Nagoya, Japan.,Division of Descriptive Cancer Epidemiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Taichi Shimazu
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan
| | - Shogo Kikuchi
- Department of Public Health, Aichi Medical University School of Medicine, Aichi, Japan
| | - Manami Inoue
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan
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7
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Imaeda N, Goto C, Sasakabe T, Mikami H, Oze I, Hosono A, Naito M, Miyagawa N, Ozaki E, Ikezaki H, Nanri H, Nakahata NT, Kamano SK, Kuriki K, Yaguchi YT, Kayama T, Kurihara A, Harada S, Wakai K. Reproducibility and validity of food group intake in a short food frequency questionnaire for the middle-aged Japanese population. Environ Health Prev Med 2021; 26:28. [PMID: 33653279 PMCID: PMC7923820 DOI: 10.1186/s12199-021-00951-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Accepted: 02/21/2021] [Indexed: 11/10/2022] Open
Abstract
Purpose The purpose of this study was to evaluate the reproducibility and validity of a short food frequency questionnaire (FFQ) for food group intake in Japan, the reproducibility and partial validity of which were previously confirmed for nutrients. Methods A total of 288 middle-aged healthy volunteers from 11 different areas of Japan provided nonconsecutive 3-day weighed dietary records (DRs) at 3-month intervals over four seasons. We evaluated reproducibility based on the first (FFQ1) and second (FFQ2) questionnaires and their validity against the DRs by comparing the intake of 20 food groups. Spearman’s rank correlation coefficients (SRs) were calculated between energy-adjusted intake from the FFQs and that from the DRs. Results The intake of 20 food groups estimated from the two FFQs was mostly equivalent. The median energy-adjusted SRs between the FFQ1 and FFQ2 were 0.61 (range 0.38–0.86) for men and 0.66 (0.45–0.84) for women. For validity, the median de-attenuated SRs between DRs and the FFQ1 were 0.51 (0.17–0.76) for men and 0.47 (0.23–0.77) for women. Compared with the DRs, the proportion of cross-classification into exact plus adjacent quintiles with the FFQ1 ranged from 58 to 86% in men and from 57 to 86% in women. According to the robust Z scores and the Bland–Altman plot graphs, the underestimation errors in the FFQ1 tended to be greater in individuals with high mean levels of consumption for meat for men and for other vegetables for both men and women. Conclusion The FFQ demonstrated high reproducibility and reasonable validity for food group intake. This questionnaire is short and remains appropriate for identifying associations between diet and health/disease among adults in Japan. Supplementary Information The online version contains supplementary material available at 10.1186/s12199-021-00951-3.
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Affiliation(s)
- Nahomi Imaeda
- Department of Nutrition, Faculty of Wellness, Shigakkan University, Obu, Aichi, Japan. .,Department of Public Health, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan.
| | - Chiho Goto
- Department of Public Health, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan.,Department of Health and Nutrition, School of Health and Human Life, Nagoya Bunri University, Nagoya, Aichi, Japan
| | - Tae Sasakabe
- Department of Public Health, Aichi Medical University, Nagakute, Aichi, Japan.,Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Haruo Mikami
- Cancer Prevention Center, Chiba Cancer Center Research Institute, Chiba, Chiba, Japan
| | - Isao Oze
- Division of Epidemiology and Prevention, Aichi Cancer Center Research Institute, Nagoya, Aichi, Japan
| | - Akihiro Hosono
- Department of Public Health, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - Mariko Naito
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan.,Department of Oral Epidemiology, Hiroshima University Graduate School of Biomedical and Health Sciences, Hiroshima, Hiroshima, Japan
| | - Naoko Miyagawa
- Department of Public Health, Shiga University of Medical Science, Otsu, Shiga, Japan.,International Center for Nutrition and Information, National Institutes of Biomedical Innovation, Health and Nutrition, Shinjuku, Tokyo, Japan
| | - Etsuko Ozaki
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine, Kyoto, Kyoto, Japan
| | - Hiroaki Ikezaki
- Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Fukuoka, Japan.,Department of Comprehensive General Internal Medicine, Kyushu University Faculty of Medical Sciences, Fukuoka, Fukuoka, Japan
| | - Hinako Nanri
- Section of Behavioral Physiology, Department of Physical Activity Research, National Institutes of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Shinjuku, Tokyo, Japan
| | - Noriko T Nakahata
- Department of Health and Nutrition, Faculty of Nursing and Nutrition, University of Shimane, Hamada, Shimane, Japan
| | - Sakurako K Kamano
- Department of Preventive Medicine, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Tokushima, Japan
| | - Kiyonori Kuriki
- Laboratory of Public Health, Graduate School of Nutritional and Environmental Sciences, Shizuoka University, Shizuoka, Shizuoka, Japan
| | - Yuri T Yaguchi
- Department of Advanced Cancer Science, Faculty of Medicine, Yamagata University, Yamagata, Yamagata, Japan
| | - Takamasa Kayama
- Department of Advanced Cancer Science, Faculty of Medicine, Yamagata University, Yamagata, Yamagata, Japan
| | - Ayako Kurihara
- Department of Preventive Medicine and Public Health, Keio University School of Medicine, Shinjuku, Tokyo, Japan
| | - Sei Harada
- Department of Preventive Medicine and Public Health, Keio University School of Medicine, Shinjuku, Tokyo, Japan
| | - Kenji Wakai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
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8
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Matsunaga T, Naito M, Yin G, Hishida A, Okada R, Kawai S, Sasakabe T, Kadomatsu Y, Tsukamoto M, Kubo Y, Tamura T, Takeuchi K, Mori A, Hamajima N, Wakai K. Associations between peroxisome proliferator-activated receptor γ (PPAR-γ) polymorphisms and serum lipids: Two cross-sectional studies of community-dwelling adults. Gene 2020; 762:145019. [PMID: 32755657 DOI: 10.1016/j.gene.2020.145019] [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: 04/16/2020] [Revised: 07/07/2020] [Accepted: 07/30/2020] [Indexed: 12/11/2022]
Abstract
Dyslipidemia is a well-established risk factor for cardiovascular disease. Experimental studies have reported that peroxisome proliferator-activated receptor γ (PPAR-γ) regulates adipocyte differentiation, lipid storage, and glucose metabolism. Therefore, we examined the associations between PPAR-γ polymorphisms (rs1801282, rs3856806, rs12497191, rs1151999, and rs1152003) and serum lipids in two cross-sectional studies. In the Shizuoka area of the Japan Multi-Institutional Collaborative Cohort Study, we examined 4,952 participants (3,356 men and 1,596 women) in a baseline survey and 2,245 participants (1,550 men and 695 women) in a second survey 5 years later. Outcome measures were the prevalence of dyslipidemia (low-density lipoprotein-cholesterol [LDL-C] ≥ 140 mg/dl, high-density lipoprotein-cholesterol < 40 mg/dl, triglycerides ≥ 150 mg/dl, and/or use of cholesterol-lowering drugs) and the prevalence of high LDL-C (LDL-C ≥ 140 mg/dl and/or use of cholesterol-lowering drugs). Multivariate odds ratios (ORs) were estimated by using unconditional logistic regression models. A total of 2,114 and 1,431 individuals (42.7% and 28.9%) had dyslipidemia and high LDL-C in the baseline survey, respectively, as did 933 and 716 (41.6% and 31.9%), respectively, in the second survey. In the baseline study, compared with major allele homozygotes, minor allele homozygotes of rs3856806 and rs12497191 had a 42% (OR, 0.58; 95% confidence interval (CI), 0.39-0.85) and 23% (OR, 0.77; 95% CI, 0.60-0.99) lower risk of dyslipidemia, respectively, after adjustment for potential confounding factors. In addition, minor allele homozygotes of rs3856806 had a 45% (OR, 0.55; 95% CI, 0.35-0.86) lower risk of high LDL-C. Similar risk reductions were found in the second survey. In conclusion, rs3856806 and rs12497191 polymorphisms may be related to a lower risk of dyslipidemia and high LDL-C.
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Affiliation(s)
- Takashi Matsunaga
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan.
| | - Mariko Naito
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan; Department of Oral Epidemiology, Hiroshima University Graduate School of Biomedical and Health Sciences, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
| | - Guang Yin
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan; Department of Nutritional Sciences, Faculty of Health and Welfare, Seinan Jo Gakuin University, 1-3-5 Ibori, Kokura Kita-ku, Kitakyushu, Fukuoka 803-0835, Japan
| | - Asahi Hishida
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Rieko Okada
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Sayo Kawai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan; Department of Public Health, Aichi Medical University, Nagakute 480-1195, Japan
| | - Tae Sasakabe
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan; Department of Public Health, Aichi Medical University, Nagakute 480-1195, Japan
| | - Yuka Kadomatsu
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Mineko Tsukamoto
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Yoko Kubo
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Takashi Tamura
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Kenji Takeuchi
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Atsuyoshi Mori
- Seirei Preventive Health Care Center, 3453-1 Mikatahara-cho, Kita-ku, Hamamatsu 433-8558, Japan
| | - Nobuyuki Hamajima
- Department of Healthcare Administration, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Kenji Wakai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
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9
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Fujii R, Kondo T, Tsukamoto M, Kawai S, Sasakabe T, Naito M, Kubo Y, Okada R, Tamura T, Hishida A, Ueyama J, Hayashi Y, Ohnishi J, Hamajima N, Takeuchi K, Wakai K. Association of self-reported moderate vegetable juice intake with small decline in kidney function in a five-year prospective study. Nutrition 2020; 84:111114. [PMID: 33454529 DOI: 10.1016/j.nut.2020.111114] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 11/24/2020] [Accepted: 12/04/2020] [Indexed: 11/26/2022]
Abstract
OBJECTIVES Although consumption of vegetable and 100% fruit juices are an acceptable alternative for vegetable and fruit intake, information about their actual effects on kidney function is sparse. The aim of this study was to determine the association between the consumption of vegetable and fruit juices and changes in kidney function in a Japanese population over a 5-y period. METHODS In this prospective study, we analyzed 2755 Japanese (742 men and 2013 women) individuals who participated in both the baseline and follow-up surveys in the Daiko study (a study within the Japan Multi-Institutional Collaborative Cohort study). Estimated glomerular filtration rate (eGFR) was calculated by age, sex, and serum creatinine level. For each beverage, we categorized all participants into four groups-rare (rarely consumed), low (≤2 cups/wk), moderate (3-4 cups/wk), or frequent (≥5 cups/wk) consumers of the beverage-based on a food frequency questionnaire. RESULTS The mean baseline and follow-up eGFR (SD) were 82.4 (14.6) and 72.2 (12.6), respectively. In fully adjusted regression analyses, moderate consumption of vegetable juice was associated a lower decline in eGFR compared with the rare consumption group (β = -1.30; P = 0.01). Moreover, stratified analyses revealed that this significant association remained in those who were young, female, non-obese, normotensive, smoked cigarettes, consumed alcohol, or exercised. However, no significant association was found in analyses for fruit juices. CONCLUSIONS This 5-y prospective study suggested an association between self-reported moderate consumption of vegetable juice and changes (possibly smaller decline) in kidney function in a relatively healthy Japanese population.
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Affiliation(s)
- Ryosuke Fujii
- Department of Preventive Medical Sciences, Fujita Health University School of Medical Sciences, Toyoake, Japan; Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan.
| | - Takaaki Kondo
- Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Mineko Tsukamoto
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Sayo Kawai
- Department of Public Health, Aichi Medical University, Nagakute, Japan
| | - Tae Sasakabe
- Department of Public Health, Aichi Medical University, Nagakute, Japan
| | - Mariko Naito
- Department of Oral Epidemiology, Hiroshima University Graduate School of Biomedical and Health Sciences, Hiroshima, Japan
| | - Yoko Kubo
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Rieko Okada
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takashi Tamura
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Asahi Hishida
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Jun Ueyama
- Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yumi Hayashi
- Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Joji Ohnishi
- Department of Community Healthcare & Geriatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Nobuyuki Hamajima
- Department of Healthcare Administration, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kenji Takeuchi
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kenji Wakai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
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10
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Takeuchi K, Naito M, Kawai S, Tsukamoto M, Kadomatsu Y, Kubo Y, Okada R, Nagayoshi M, Tamura T, Hishida A, Nakatochi M, Sasakabe T, Hashimoto S, Eguchi H, Momozawa Y, Ikezaki H, Murata M, Furusyo N, Tanaka K, Hara M, Nishida Y, Matsuo K, Ito H, Oze I, Mikami H, Nakamura Y, Kusakabe M, Takezaki T, Ibusuki R, Shimoshikiryo I, Suzuki S, Nishiyama T, Watanabe M, Koyama T, Ozaki E, Watanabe I, Kuriki K, Kita Y, Ueshima H, Matsui K, Arisawa K, Uemura H, Katsuura-Kamano S, Nakamura S, Narimatsu H, Hamajima N, Tanaka H, Wakai K. Study profile of the Japan Multi-institutional Collaborative Cohort (J-MICC) Study. J Epidemiol 2020; 31:660-668. [PMID: 32963210 PMCID: PMC8593573 DOI: 10.2188/jea.je20200147] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND The Japan Multi-institutional Collaborative Cohort (J-MICC) study was launched in 2005 to examine gene-environment interactions in lifestyle-related diseases, including cancers, among the Japanese. This report describes the study design and baseline profile of the study participants. METHODS The participants of the J-MICC Study were individuals aged 35 to 69 years enrolled from respondents to study announcements in specified regions, inhabitants attending health checkup examinations provided by local governments, visitors at health checkup centers, and first-visit patients at a cancer hospital in Japan. At the time of the baseline survey, from 2005 to 2014, we obtained comprehensive information regarding demographics, education, alcohol consumption, smoking, sleeping, exercise, food intake frequency, medication and supplement use, personal and family disease history, psychological stress, and female reproductive history, and collected peripheral blood samples. RESULTS The baseline survey included 92,610 adults (mean age: 55.2 [9.4] years, 44.1% men) from 14 study regions in 12 prefectures. The participation rate was 33.5%, with participation ranging from 19.7% to 69.8% in different study regions. The largest number of participants was in the age groups of 65-69 years for men and 60-64 years for women. There were differences in body mass index, educational attainment, alcohol consumption, smoking, and sleep duration between men and women. CONCLUSIONS The J-MICC Study collected lifestyle and clinical data and biospecimens from over 90,000 participants. This cohort is expected to be a valuable resource for the national and international scientific community in providing evidence to support longer healthy lives.
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Affiliation(s)
- Kenji Takeuchi
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine
| | - Mariko Naito
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine.,Department of Oral Epidemiology, Hiroshima University Graduate School of Biomedical and Health Sciences
| | - Sayo Kawai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine.,Department of Public Health, Aichi Medical University School of Medicine
| | - Mineko Tsukamoto
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine
| | - Yuka Kadomatsu
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine
| | - Yoko Kubo
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine
| | - Rieko Okada
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine
| | - Mako Nagayoshi
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine
| | - Takashi Tamura
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine
| | - Asahi Hishida
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine
| | - Masahiro Nakatochi
- Public Health Informatics Unit, Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine
| | - Tae Sasakabe
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine.,Department of Public Health, Aichi Medical University School of Medicine
| | - Shuji Hashimoto
- Department of Hygiene, Fujita Health University School of Medicine
| | - Hidetaka Eguchi
- Diagnosis and Therapeutics of Intractable Diseases and Intractable Disease Research Center, Juntendo University Graduate School of Medicine
| | - Yukihide Momozawa
- Laboratory for Genotyping Development, RIKEN Center for Integrative Medical Sciences
| | - Hiroaki Ikezaki
- Department of Comprehensive General Internal Medicine, Kyushu University Graduate School, Faculty of Medical Sciences.,Department of General Internal Medicine, Kyushu University Hospital
| | - Masayuki Murata
- Department of General Internal Medicine, Kyushu University Hospital
| | - Norihiro Furusyo
- Department of Environmental Medicine and Infectious Diseases, Kyushu University Graduate School of Medical Sciences
| | - Keitaro Tanaka
- Department of Preventive Medicine, Faculty of Medicine, Saga University
| | - Megumi Hara
- Department of Preventive Medicine, Faculty of Medicine, Saga University
| | - Yuichiro Nishida
- Department of Preventive Medicine, Faculty of Medicine, Saga University
| | - Keitaro Matsuo
- Division of Cancer Epidemiology and Prevention, Aichi Cancer Center Research Institute.,Department of Cancer Epidemiology, Nagoya University Graduate School of Medicine
| | - Hidemi Ito
- Division of Cancer Information and Control, Aichi Cancer Center Research Institute.,Department of Descriptive Cancer Epidemiology, Nagoya University Graduate School of Medicine
| | - Isao Oze
- Division of Cancer Epidemiology and Prevention, Aichi Cancer Center Research Institute
| | - Haruo Mikami
- Cancer Prevention Center, Chiba Cancer Center Research Institute
| | - Yohko Nakamura
- Cancer Prevention Center, Chiba Cancer Center Research Institute
| | - Miho Kusakabe
- Cancer Prevention Center, Chiba Cancer Center Research Institute
| | - Toshiro Takezaki
- Department of International Island and Community Medicine, Kagoshima University Graduate School of Medical and Dental Sciences
| | - Rie Ibusuki
- Department of International Island and Community Medicine, Kagoshima University Graduate School of Medical and Dental Sciences
| | - Ippei Shimoshikiryo
- Department of International Island and Community Medicine, Kagoshima University Graduate School of Medical and Dental Sciences
| | - Sadao Suzuki
- Department of Public Health, Nagoya City University Graduate School of Medical Sciences
| | - Takeshi Nishiyama
- Department of Public Health, Nagoya City University Graduate School of Medical Sciences
| | - Miki Watanabe
- Department of Public Health, Nagoya City University Graduate School of Medical Sciences
| | - Teruhide Koyama
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine
| | - Etsuko Ozaki
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine
| | - Isao Watanabe
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine
| | - Kiyonori Kuriki
- Laboratory of Public Health, Division of Nutritional Sciences, School of Food and Nutritional Sciences, University of Shizuoka
| | | | - Hirotsugu Ueshima
- Center for Epidemiologic Research in Asia, Shiga University of Medical Science
| | - Kenji Matsui
- Division of Bioethics and Healthcare Law, The National Cancer Center Japan
| | - Kokichi Arisawa
- Department of Preventive Medicine, Tokushima University Graduate School of Biomedical Sciences
| | - Hirokazu Uemura
- Department of Preventive Medicine, Tokushima University Graduate School of Biomedical Sciences.,College of Nursing Art and Science, University of Hyogo
| | | | - Sho Nakamura
- Cancer Prevention and Control Division, Kanagawa Cancer Center Research Institute.,School of Health of Innovation, Kanagawa University of Human Services
| | - Hiroto Narimatsu
- Cancer Prevention and Control Division, Kanagawa Cancer Center Research Institute.,School of Health of Innovation, Kanagawa University of Human Services
| | - Nobuyuki Hamajima
- Department of Healthcare Administration, Nagoya University Graduate School of Medicine
| | | | - Kenji Wakai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine
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11
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Wang C, Yatsuya H, Lin Y, Sasakabe T, Kawai S, Kikuchi S, Iso H, Tamakoshi A. Milk Intake and Stroke Mortality in the Japan Collaborative Cohort Study-A Bayesian Survival Analysis. Nutrients 2020; 12:nu12092743. [PMID: 32916842 PMCID: PMC7550994 DOI: 10.3390/nu12092743] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 08/30/2020] [Accepted: 09/03/2020] [Indexed: 12/28/2022] Open
Abstract
The aim of this study was to further examine the relationship between milk intake and stroke mortality among the Japanese population. We used data from the Japan Collaborative Cohort (JACC) Study (total number of participants = 110,585, age range: 40–79) to estimate the posterior acceleration factors (AF) as well as the hazard ratios (HR) comparing individuals with different milk intake frequencies against those who never consumed milk at the study baseline. These estimations were computed through a series of Bayesian survival models that employed a Markov Chain Monte Carlo simulation process. In total, 100,000 posterior samples were generated separately through four independent chains after model convergency was confirmed. Posterior probabilites that daily milk consumers had lower hazard or delayed mortality from strokes compared to non-consumers was 99.0% and 78.0% for men and women, respectively. Accordingly, the estimated posterior means of AF and HR for daily milk consumers were 0.88 (95% Credible Interval, CrI: 0.81, 0.96) and 0.80 (95% CrI: 0.69, 0.93) for men and 0.97 (95% CrI: 0.88, 1.10) and 0.95 (95% CrI: 0.80, 1.17) for women. In conclusion, data from the JACC study provided strong evidence that daily milk intake among Japanese men was associated with delayed and lower risk of mortality from stroke especially cerebral infarction.
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Affiliation(s)
- Chaochen Wang
- Department of Public Health, Aichi Medical University School of Medicine, 480-1195 Aichi, Japan; (Y.L.); (T.S.); (S.K.); (S.K.)
- Correspondence: ; Tel.: +81-561-62-3311
| | - Hiroshi Yatsuya
- Department of Public Health, Fujita Health University School of Medicine, Toyoake 470-1192, Japan;
| | - Yingsong Lin
- Department of Public Health, Aichi Medical University School of Medicine, 480-1195 Aichi, Japan; (Y.L.); (T.S.); (S.K.); (S.K.)
| | - Tae Sasakabe
- Department of Public Health, Aichi Medical University School of Medicine, 480-1195 Aichi, Japan; (Y.L.); (T.S.); (S.K.); (S.K.)
| | - Sayo Kawai
- Department of Public Health, Aichi Medical University School of Medicine, 480-1195 Aichi, Japan; (Y.L.); (T.S.); (S.K.); (S.K.)
| | - Shogo Kikuchi
- Department of Public Health, Aichi Medical University School of Medicine, 480-1195 Aichi, Japan; (Y.L.); (T.S.); (S.K.); (S.K.)
| | - Hiroyasu Iso
- Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine, Osaka 565-0871, Japan;
| | - Akiko Tamakoshi
- Department of Public Health, Hokkaido University, Faculty of Medicine, Sapporo 002-8501, Japan;
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12
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Morita E, Kadomatsu Y, Tsukamoto M, Kubo Y, Okada R, Sasakabe T, Kawai S, Hishida A, Naito M, Wakai K. Frequency of forest walking is not associated with prevalence of hypertension based on cross-sectional studies of a general Japanese population: a reconfirmation by the J-MICC Daiko Study. Nagoya J Med Sci 2020; 81:489-500. [PMID: 31579339 PMCID: PMC6728201 DOI: 10.18999/nagjms.81.3.489] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Forest walking or Shinrin-yoku is a health promotion activity in Japan. Although some studies have reported the acute effects of walking a few hours in forested areas in reducing blood pressure level compared to other environments, studies investigating whether successive walking has long-term effects in lowering blood pressure levels or lowering prevalence of hypertension are rare. This study aimed to reconfirm the presence or absence of an association between the frequency of forest walking and prevalence of hypertension in a Japanese population. This J-MICC Daiko Study was conducted targeting residents in Nagoya City. A total of 5,109 participants (1,452 men and 3,657 women; age, mean ± standard deviation: 52.5 ± 10.3 years) were included in the analysis. Age-adjusted blood pressure level by frequency of forest walking was not significant. After adjusting for age and lifestyle, the adjusted odds ratios (aORs) of the most frequent group (n=88, 1.7%; once a week or more group) relative to the less than once a month group (n=4,558, 89.2%) for prevalence of hypertension were not also significant [0.80 (95% CI: 0.40–1.62) for men and 1.48 (95% CI: 0.73–3.00) for women]. This study reconfirmed that either lowering blood pressure level or lowering the prevalence of hypertension is not associated with frequency of forest walking, similar to the results of our previous J-MICC Shizuoka Study. Given that these two studies were cross-sectional studies, cohort studies investigating the causal relationship are required to evaluate the effect of frequent forest walking on the prevention of hypertension.
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Affiliation(s)
- Emi Morita
- Nagoya University Graduate School of Medicine, Nagoya, Japan.,Forestry and Forest Products Research Institute, Forest Research and Management Organization, Tsukuba, Japan.,International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Japan
| | - Yuka Kadomatsu
- Nagoya University Graduate School of Medicine, Nagoya, Japan
| | | | - Yoko Kubo
- Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Rieko Okada
- Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tae Sasakabe
- Nagoya University Graduate School of Medicine, Nagoya, Japan.,Aichi Medical University, Nagakute, Japan
| | - Sayo Kawai
- Nagoya University Graduate School of Medicine, Nagoya, Japan.,Aichi Medical University, Nagakute, Japan
| | - Asahi Hishida
- Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Mariko Naito
- Nagoya University Graduate School of Medicine, Nagoya, Japan.,Graduate School of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Kenji Wakai
- Nagoya University Graduate School of Medicine, Nagoya, Japan
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13
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Choda N, Wakai K, Naito M, Imaeda N, Goto C, Maruyama K, Kadomatsu Y, Tsukamoto M, Sasakabe T, Kubo Y, Okada R, Kawai S, Tamura T, Hishida A, Takeuchi K, Mori A, Hamajima N. Associations between diet and mental health using the 12-item General Health Questionnaire: cross-sectional and prospective analyses from the Japan Multi-Institutional Collaborative Cohort Study. Nutr J 2020; 19:2. [PMID: 31918726 PMCID: PMC6953463 DOI: 10.1186/s12937-019-0515-6] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 12/19/2019] [Indexed: 12/12/2022] Open
Abstract
Background Mental health has become a major public health issue worldwide. Biological and epidemiological studies suggest diet has a role in the prevention or cure of mental disorders. However, further research is required to elucidate the relationship between diet and mental health. This study aimed to investigate associations between dietary intake of nutrients (macronutrients, vitamins, calcium, and fatty acids) and food groups (fish, meat and chicken, dairy products, and vegetables) and mental health among middle-aged Japanese in cross-sectional and prospective studies. Methods In total, 9298 men and women that participated in two areas of the Japan Multi-Institutional Collaborative Cohort Study were eligible for analysis at the baseline (cross-sectional) survey. Of these, 4701 participants were followed for about 5 years and included in the follow-up (prospective) analysis. The 12-item General Health Questionnaire (GHQ) was used to assess participants’ general mental health status over the past several weeks. The average intake of 46 foods over the past year was assessed by a validated food frequency questionnaire. We also evaluated lifestyle and medical factors using a self-administered questionnaire. A cross-sectional logistic regression analysis was performed to estimate odds ratios for a GHQ score ≥ 4 (poor mental health) according to dietary intake of foods/nutrients at baseline. The prospective study used baseline dietary and lifestyle factors and GHQ scores at follow-up. Results The cross-sectional logistic regression analysis showed vegetables, protein, calcium, vitamin D, carotene and n-3 highly-polyunsaturated fatty acids were inversely associated with a GHQ score ≥ 4. On the other hand, mono-unsaturated fatty acids showed a positive association with higher GHQ score. The prospective logistic regression analysis found dairy products, calcium, vitamin B2, and saturated fatty acids were inversely correlated with a GHQ score ≥ 4. Calcium was associated with GHQ scores in both the cross-sectional and follow-up studies. In the follow-up study, the multivariable-adjusted odds ratio for a GHQ score ≥ 4 was 0.71 (95% confidence interval, 0.55–0.92) for the highest versus lowest quartiles of calorie-adjusted dietary calcium intake. Conclusion Consuming particular nutrients and foods, especially calcium and dairy products, may lead to better mental health in Japanese adults.
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Affiliation(s)
- Naoki Choda
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan.
| | - Kenji Wakai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Mariko Naito
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan.,Department of Oral Epidemiology, Hiroshima University Graduate School of Biomedical and Health Sciences, Hiroshima, 734-8553, Japan
| | - Nahomi Imaeda
- Department of Nutrition, Faculty of Wellness, Shigakkan University, Obu, Aichi, 474-8651, Japan
| | - Chiho Goto
- Department of Health and Nutrition, Nagoya Bunri University, Inazawa, Aichi, 492-8520, Japan
| | - Kenta Maruyama
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Yuka Kadomatsu
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Mineko Tsukamoto
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Tae Sasakabe
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan.,Department of Public Health, Aichi Medical University School of Medicine, Nagakute, Aichi, 480-1195, Japan
| | - Yoko Kubo
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Rieko Okada
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Sayo Kawai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan.,Department of Public Health, Aichi Medical University School of Medicine, Nagakute, Aichi, 480-1195, Japan
| | - Takashi Tamura
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Asahi Hishida
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Kenji Takeuchi
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Atsuyoshi Mori
- Seirei Preventive Health Care Center, Hamamatsu, Shizuoka, 433-8105, Japan
| | - Nobuyuki Hamajima
- Department of Healthcare Administration, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
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14
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Kadomatsu Y, Tsukamoto M, Sasakabe T, Kawai S, Naito M, Kubo Y, Okada R, Tamura T, Hishida A, Mori A, Hamajima N, Yokoi K, Wakai K. A risk score predicting new incidence of hypertension in Japan. J Hum Hypertens 2019; 33:748-755. [PMID: 31431683 DOI: 10.1038/s41371-019-0226-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 07/16/2019] [Accepted: 08/06/2019] [Indexed: 11/09/2022]
Abstract
The prevention of hypertension starts with the awareness of risk. Our aim was to construct a simple and well-validated risk model for nonhypertensive people in Japan consisting of basic clinical variables, using a dataset for two areas derived from the Japan Multi-Institutional Collaborative Cohort Study. We constructed a continuous-value model using data on 5105 subjects participating in both the baseline survey and a second survey conducted after 5 years. The area under the receiver operating characteristic curve (AUC) and the Hosmer-Lemeshow χ2 statistic for the entire cohort were 0.826 and 7.06, respectively. For validation, the entire cohort was randomly divided 100 times into derivation and validation sets at a ratio of 6:4. The summarized median AUC and the Hosmer-Lemeshow χ2 statistic were 0.83 and 12.2, respectively. The AUC of a point-based model consisting of integer scores assigned to each variable was 0.826 and showed no difference, compared with the continuous-value model. This simple risk model may help the general population to assess their risks of new-onset hypertension.
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Affiliation(s)
- Yuka Kadomatsu
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan. .,Department of Thoracic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.
| | - Mineko Tsukamoto
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tae Sasakabe
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Department of Public Health, Aichi Medical University, Nagakute, Japan
| | - Sayo Kawai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Department of Public Health, Aichi Medical University, Nagakute, Japan
| | - Mariko Naito
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Department of Oral Epidemiology, Hiroshima University Graduate School of Biomedical and Health Sciences, Hiroshima, Japan
| | - Yoko Kubo
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Rieko Okada
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takashi Tamura
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Asahi Hishida
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | | | - Nobuyuki Hamajima
- Department of Healthcare Administration, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kohei Yokoi
- Department of Thoracic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kenji Wakai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
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15
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Hara M, Hachiya T, Sutoh Y, Matsuo K, Nishida Y, Shimanoe C, Tanaka K, Shimizu A, Ohnaka K, Kawaguchi T, Oze I, Matsuda F, Ito H, Kawai S, Hishida A, Okada R, Sasakabe T, Hirata A, Ibusuki R, Nindita Y, Furusyo N, Ikezaki H, Kuriyama N, Ozaki E, Mikami H, Nakamura Y, Suzuki S, Hosono A, Katsuura-Kamano S, Arisawa K, Kuriki K, Endoh K, Takashima N, Kadota A, Nakatochi M, Momozawa Y, Kubo M, Naito M, Wakai K. Genomewide Association Study of Leisure-Time Exercise Behavior in Japanese Adults. Med Sci Sports Exerc 2019; 50:2433-2441. [PMID: 30102679 PMCID: PMC6282671 DOI: 10.1249/mss.0000000000001712] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Supplemental digital content is available in the text. Purpose Although several genetic factors may play a role in leisure-time exercise behavior, there is currently no evidence of a significant genomewide association, and candidate gene replication studies have produced inconsistent results. Methods We conducted a two-stage genomewide association study and candidate single-nucleotide polymorphisms (SNP) association study on leisure-time exercise behavior using 13,980 discovery samples from the Japan Multi-Institutional Collaborative Cohort (J-MICC) study, and 2036 replication samples from the Hospital-based Epidemiologic Research Program at Aichi Cancer Center-2 study. Leisure-time physical activity was measured using a self-administered questionnaire that inquired about the type, frequency and duration of exercise. Participants with ≥4 MET·h·wk−1 of leisure-time physical activity were defined as exhibiting leisure-time exercise behavior. Association testing using mixed linear regression models was performed on the discovery and replication samples, after which the results were combined in a meta-analysis. In addition, we tested six candidate genetic variants derived from previous genomewide association study. Results We found that one novel SNP (rs10252228) located in the intergenic region between NPSR1 and DPY19L1 was significantly associated with leisure-time exercise behavior in discovery samples. This association was also significant in replication samples (combined P value by meta-analysis = 2.2 × 10−9). Several SNP linked with rs10252228 were significantly associated with gene expression of DPY19L1 and DP19L2P1 in skeletal muscle, heart, whole blood, and the nervous system. Among the candidate SNP, rs12612420 in DNAPTP6 demonstrated nominal significance in discovery samples but not in replication samples. Conclusions We identified a novel genetic variant associated with regular leisure-time exercise behavior. Further functional studies are required to validate the role of these variants in exercise behavior.
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Affiliation(s)
- Megumi Hara
- Department of Preventive Medicine, Faculty of Medicine, Saga University, Saga, JAPAN
| | - Tsuyoshi Hachiya
- Division of Biomedical Information Analysis, Iwate Tohoku Medical Megabank Organization, Disaster Reconstruction Center, Iwate Medical University, Iwate, JAPAN
| | - Yoichi Sutoh
- Division of Biomedical Information Analysis, Iwate Tohoku Medical Megabank Organization, Disaster Reconstruction Center, Iwate Medical University, Iwate, JAPAN
| | - Keitaro Matsuo
- Division of Molecular and Clinical Epidemiology, Aichi Cancer Center Research Institute, Nagoya, JAPAN.,Department of Epidemiology, Nagoya University Graduate School of Medicine, Nagoya, JAPAN
| | - Yuichiro Nishida
- Department of Preventive Medicine, Faculty of Medicine, Saga University, Saga, JAPAN
| | - Chisato Shimanoe
- Department of Preventive Medicine, Faculty of Medicine, Saga University, Saga, JAPAN
| | - Keitaro Tanaka
- Department of Preventive Medicine, Faculty of Medicine, Saga University, Saga, JAPAN
| | - Atsushi Shimizu
- Division of Biomedical Information Analysis, Iwate Tohoku Medical Megabank Organization, Disaster Reconstruction Center, Iwate Medical University, Iwate, JAPAN
| | - Keizo Ohnaka
- Department of Geriatric Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, JAPAN
| | - Takahisa Kawaguchi
- Center for Genomic Medicine, Graduate School of Medicine, Kyoto University, Kyoto, JAPAN
| | - Isao Oze
- Division of Molecular and Clinical Epidemiology, Aichi Cancer Center Research Institute, Nagoya, JAPAN
| | - Fumihiko Matsuda
- Center for Genomic Medicine, Graduate School of Medicine, Kyoto University, Kyoto, JAPAN
| | - Hidemi Ito
- Division of Molecular and Clinical Epidemiology, Aichi Cancer Center Research Institute, Nagoya, JAPAN.,Department of Epidemiology, Nagoya University Graduate School of Medicine, Nagoya, JAPAN.,Division of Epidemiology and Prevention, Aichi Cancer Center Research Institute, Nagoya, JAPAN
| | - Sayo Kawai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, JAPAN.,Department of Public Health, Aichi Medical University, School of Medicine, Aichi, JAPAN
| | - Asahi Hishida
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, JAPAN
| | - Rieko Okada
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, JAPAN
| | - Tae Sasakabe
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, JAPAN.,Department of Public Health, Aichi Medical University, School of Medicine, Aichi, JAPAN
| | - Akie Hirata
- Division of Molecular and Clinical Epidemiology, Aichi Cancer Center Research Institute, Nagoya, JAPAN
| | - Rie Ibusuki
- Department of International Island and Community Medicine Kagoshima University, Graduate School of Medical and Dental Sciences, Kagoshima, JAPAN
| | - Yora Nindita
- Department of International Island and Community Medicine Kagoshima University, Graduate School of Medical and Dental Sciences, Kagoshima, JAPAN.,Department of Pharmacology and Therapeutic, Faculty of Medicine, Diponegoro University, Semarang, INDONESIA
| | - Norihiro Furusyo
- Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, JAPAN
| | - Hiroaki Ikezaki
- Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, JAPAN
| | - Nagato Kuriyama
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine Graduate School of Medical Science, Kyoto, JAPAN
| | - Etsuko Ozaki
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine Graduate School of Medical Science, Kyoto, JAPAN
| | - Haruo Mikami
- Cancer Prevention Center, Chiba Cancer Center Research Institute, Chiba, JAPAN
| | - Yohko Nakamura
- Cancer Prevention Center, Chiba Cancer Center Research Institute, Chiba, JAPAN
| | - Sadao Suzuki
- Department of Public Health, Nagoya City University Graduate School of Medical Sciences, Nagoya, JAPAN
| | - Akihiro Hosono
- Department of Public Health, Nagoya City University Graduate School of Medical Sciences, Nagoya, JAPAN
| | - Sakurako Katsuura-Kamano
- Department of Preventive Medicine, Institute of Biomedical Sciences, Tokushima University Graduate School, Tsukuba, JAPAN
| | - Kokichi Arisawa
- Department of Preventive Medicine, Institute of Biomedical Sciences, Tokushima University Graduate School, Tsukuba, JAPAN
| | - Kiyonori Kuriki
- Laboratory of Public Health, School of Food and Nutritional Sciences, University of Shizuoka, Shizuoka, JAPAN
| | - Kaori Endoh
- Laboratory of Public Health, School of Food and Nutritional Sciences, University of Shizuoka, Shizuoka, JAPAN
| | - Naoyuki Takashima
- Department of Public Health, Shiga University of Medical Science, Shiga, JAPAN
| | - Aya Kadota
- Department of Public Health, Shiga University of Medical Science, Shiga, JAPAN.,Center for Epidemiologic Research in Asia, Shiga University of Medical Science, Shiga, JAPAN
| | - Masahiro Nakatochi
- Statistical Analysis Section, Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya, JAPAN
| | - Yukihide Momozawa
- Laboratory for Genotyping Development, Riken Center for Integrative Medical Sciences, Yokohama, JAPAN
| | - Michiaki Kubo
- RIKEN Center for Integrative Medical Sciences, Yokohama, JAPAN
| | - Mariko Naito
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, JAPAN.,Department of Oral Epidemiology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, JAPAN
| | - Kenji Wakai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, JAPAN
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16
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Kawai S, Arai K, Lin Y, Nishiyama T, Sasakabe T, Wang C, Miwa H, Kikuchi S. Comparison of the detection of Helicobacter pylori infection by commercially available serological testing kits and the 13C-urea breath test. J Infect Chemother 2019; 25:769-773. [PMID: 31023569 DOI: 10.1016/j.jiac.2019.03.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 03/07/2019] [Accepted: 03/28/2019] [Indexed: 01/07/2023]
Abstract
BACKGROUND Serum Helicobacter pylori (H. pylori) antibody kits (LZ and LIA) using the latex agglutination immunoassay method are commercially available, but few studies have been performed to determine their diagnostic accuracy or to compare their results with those of enzyme-linked immunosorbent assay (ELISA) kits (EP and EIA). METHODS Sera were obtained from 213 hospital outpatients with dyspeptic symptoms. The serological results were compared with the result of the 13C-urea breath test (UBT) which seems to be reliable. RESULTS Of the 213 subjects, 154 were diagnosed as positive for H. pylori infection according to the UBT. The sensitivities and specificities of these tests were 97.4% and 76.3%, 98.1% and 78.0%, 99.4% and 74.6%, and 98.1% and 71.2% for the EP, LZ, EIA and LIA tests, respectively. When the 13 subjects whose seropositive results of the four kits were completely opposite to the negative results of the UBT were excluded, the specificities of evaluated kits were all higher than 90%. The concordance rate between the EP and EIA tests was 98.1% (Spearman's rank correlation coefficient = 0.83) and that between the LZ and LIA tests was 97.1% (correlation coefficient = 0.91). The LZ gave higher antibody titer value than EP (p < 0.0001, Z = 9.82; Wilcoxon signed-rank test), and EIA gave higher value than LIA (p < 0.0001, Z = 6.43; Wilcoxon signed-rank test). CONCLUSIONS The latex immunoassay method provided the same reliability to ELISA in terms of the diagnostic accuracy for current H. pylori infection, although we should take into account the titer value differences by each test method in practical use.
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Affiliation(s)
- Sayo Kawai
- Department of Public Health, Aichi Medical University, School of Medicine, Aichi, Japan
| | - Kensuke Arai
- Department of Public Health, Aichi Medical University, School of Medicine, Aichi, Japan
| | - Yingsong Lin
- Department of Public Health, Aichi Medical University, School of Medicine, Aichi, Japan
| | - Takeshi Nishiyama
- Department of Public Health, Aichi Medical University, School of Medicine, Aichi, Japan; Department of Public Health, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Tae Sasakabe
- Department of Public Health, Aichi Medical University, School of Medicine, Aichi, Japan
| | - Chaochen Wang
- Department of Public Health, Aichi Medical University, School of Medicine, Aichi, Japan
| | - Hiroto Miwa
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
| | - Shogo Kikuchi
- Department of Public Health, Aichi Medical University, School of Medicine, Aichi, Japan.
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17
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Nishiyama T, Nakatochi M, Goto A, Iwasaki M, Hachiya T, Sutoh Y, Shimizu A, Wang C, Tanaka H, Watanabe M, Hosono A, Tamai Y, Yamada T, Yamaji T, Sawada N, Fukumoto K, Otsuka K, Tanno K, Tomita H, Kojima K, Nagasaki M, Hozawa A, Hishida A, Sasakabe T, Nishida Y, Hara M, Ito H, Oze I, Nakamura Y, Mikami H, Ibusuki R, Takezaki T, Koyama T, Kuriyama N, Endoh K, Kuriki K, Turin TC, Naoyuki T, Katsuura-Kamano S, Uemura H, Okada R, Kawai S, Naito M, Momozawa Y, Kubo M, Sasaki M, Yamamoto M, Tsugane S, Wakai K, Suzuki S. Genome-wide association meta-analysis and Mendelian randomization analysis confirm the influence of ALDH2 on sleep durationin the Japanese population. Sleep 2019; 42:5362027. [DOI: 10.1093/sleep/zsz046] [Citation(s) in RCA: 13] [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] [Received: 05/15/2018] [Accepted: 02/20/2019] [Indexed: 11/14/2022] Open
Affiliation(s)
- Takeshi Nishiyama
- Department of Public Health, Nagoya City University Graduate School of Medicine, Nagoya, Japan
- Department of Public Health, Aichi Medical University School of Medicine, Nagakute, Japan
| | - Masahiro Nakatochi
- Data Science Division, Data Coordinating Center, Department of Advanced Medicine, Nagoya University Hospital, Japan
| | - Atsushi Goto
- Division of Epidemiology, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan
| | - Motoki Iwasaki
- Division of Epidemiology, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan
| | - Tsuyoshi Hachiya
- Division of Biomedical Information Analysis, Iwate Tohoku Medical Megabank Organization, Iwate Medical University, Iwate, Japan
| | - Yoichi Sutoh
- Division of Biomedical Information Analysis, Iwate Tohoku Medical Megabank Organization, Iwate Medical University, Iwate, Japan
| | - Atsushi Shimizu
- Division of Biomedical Information Analysis, Iwate Tohoku Medical Megabank Organization, Iwate Medical University, Iwate, Japan
| | - Chaochen Wang
- Department of Public Health, Nagoya City University Graduate School of Medicine, Nagoya, Japan
- Department of Public Health, Aichi Medical University School of Medicine, Nagakute, Japan
| | - Hideo Tanaka
- Osaka Prefectural Kishiwada Public Health Center, Osaka, Japan
| | - Miki Watanabe
- Department of Public Health, Nagoya City University Graduate School of Medicine, Nagoya, Japan
| | - Akihiro Hosono
- Department of Public Health, Nagoya City University Graduate School of Medicine, Nagoya, Japan
| | - Yuya Tamai
- Department of Public Health, Nagoya City University Graduate School of Medicine, Nagoya, Japan
| | | | - Taiki Yamaji
- Division of Epidemiology, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan
| | - Norie Sawada
- Division of Epidemiology, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan
| | - Kentaro Fukumoto
- Department of Neuropsychiatry, School of Medicine, Iwate Medical University, Iwate, Japan
| | - Kotaro Otsuka
- Department of Neuropsychiatry, School of Medicine, Iwate Medical University, Iwate, Japan
- Division of Clinical Research and Epidemiology, Iwate Tohoku Medical Megabank Organization, Iwate Medical University, Iwate, Japan
| | - Kozo Tanno
- Division of Clinical Research and Epidemiology, Iwate Tohoku Medical Megabank Organization, Iwate Medical University, Iwate, Japan
- Department of Hygiene and Preventive Medicine, School of Medicine, Iwate Medical University, Iwate, Japan
| | - Hiroaki Tomita
- Department of Preventive Medicine and Epidemiology, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Kaname Kojima
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Masao Nagasaki
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Atsushi Hozawa
- Department of Preventive Medicine and Epidemiology, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Asahi Hishida
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tae Sasakabe
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuichiro Nishida
- Department of Preventive Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Megumi Hara
- Department of Preventive Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Hidemi Ito
- Division of Epidemiology and Prevention, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Isao Oze
- Division of Molecular and Clinical Epidemiology, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Yohko Nakamura
- Cancer Prevention Center, Chiba Cancer Center Research Institute, Chiba, Japan
| | - Haruo Mikami
- Cancer Prevention Center, Chiba Cancer Center Research Institute, Chiba, Japan
| | - Rie Ibusuki
- Department of International Islands and Community Medicine, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Toshiro Takezaki
- Department of International Islands and Community Medicine, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Teruhide Koyama
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine Graduate School of Medical Science, Kyoto, Japan
| | - Nagato Kuriyama
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine Graduate School of Medical Science, Kyoto, Japan
| | - Kaori Endoh
- Laboratory of Public Health, Graduate School of Integrated Pharmaceutical and Nutritional Sciences, University of Shizuoka, Shizuoka, Japan
| | - Kiyonori Kuriki
- Laboratory of Public Health, Graduate School of Integrated Pharmaceutical and Nutritional Sciences, University of Shizuoka, Shizuoka, Japan
| | - Tanvir C Turin
- Department of Health Science, Shiga University of Medical Science, Shiga, Japan
| | - Takashima Naoyuki
- Department of Health Science, Shiga University of Medical Science, Shiga, Japan
| | - Sakurako Katsuura-Kamano
- Department of Preventive Medicine, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Hirokazu Uemura
- Department of Preventive Medicine, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Rieko Okada
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Sayo Kawai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Mariko Naito
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
- Department of Oral Epidemiology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Yukihide Momozawa
- Laboratory for Genotyping Development, Center for Integrative Medical Sciences, RIKEN, Yokohama, Japan
| | - Michiaki Kubo
- Laboratory for Genotyping Development, Center for Integrative Medical Sciences, RIKEN, Yokohama, Japan
| | - Makoto Sasaki
- Iwate Tohoku Medical Megabank Organization, Iwate Medical University, Iwate, Japan
- Division of Ultra-High Field MRI and Department of Radiology, Iwate Medical University, Iwate, Japan
| | - Masayuki Yamamoto
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Shoichiro Tsugane
- Center for Public Health Sciences, National Cancer Center, Tokyo, Japan
| | - Kenji Wakai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Sadao Suzuki
- Department of Public Health, Nagoya City University Graduate School of Medicine, Nagoya, Japan
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18
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Tamura T, Naito M, Maruyama K, Tsukamoto M, Sasakabe T, Okada R, Kawai S, Hishida A, Wakai K. The association between self-rated health and high-sensitivity C-reactive protein level: a cross-sectional and 5-year longitudinal study. BMC Public Health 2018; 18:1380. [PMID: 30558565 PMCID: PMC6297960 DOI: 10.1186/s12889-018-6251-6] [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] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 11/22/2018] [Indexed: 11/25/2022] Open
Abstract
Background Although self-rated health (SRH) independently predicts mortality, the biological background of this association remains unexplained. This study aimed to examine the association between SRH and serum high-sensitivity C-reactive protein (hsCRP) level. Methods Subjects were 899 participants aged 35–69 years (237 men and 662 women) in the Daiko Study, part of the Japan Multi-Institutional Collaborative Cohort Study. They were enrolled from 2008 to 2010. Of the subjects, 666 participated in a second survey 5 years later. Lifestyle factors and SRH were assessed using a self-administered questionnaire. Serum hsCRP level was measured using a latex-enhanced immunonephelometric assay. The association between SRH and serum hsCRP level was evaluated using a general linear model with covariates. We further longitudinally investigated whether higher serum hsCRP level at baseline predicts poor SRH after 5 years using an unconditional logistic regression model. Results A higher serum hsCRP level was significantly associated with poor SRH at baseline after adjusting for covariates (p for trend = 0.023). The age- and sex-adjusted odds ratio and 95% confidence interval (CI) for poor SRH after 5 years was 1.45 (95% CI: 0.76–2.78) for the highest tertile compared with the lowest tertile of serum hsCRP level at baseline with a significant linear trend (p for trend = 0.033), although the risk increase disappeared after adjustment for other covariates. Conclusions The present study demonstrated that poor SRH is cross-sectionally associated with higher serum hsCRP level. However, the longitudinal data did not support the relationship between serum hsCRP level at baseline and future SRH. Further longitudinal studies that include data on mortality and multiple inflammatory markers are warranted to elucidate the possible role of low-grade inflammation in the association between SRH and mortality risk.
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Affiliation(s)
- Takashi Tamura
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan.
| | - Mariko Naito
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan.,Department of Oral Epidemiology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Kenta Maruyama
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Mineko Tsukamoto
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Tae Sasakabe
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan.,Department of Public Health, Aichi Medical University School of Medicine, Nagakute, Japan
| | - Rieko Okada
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Sayo Kawai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan.,Department of Public Health, Aichi Medical University School of Medicine, Nagakute, Japan
| | - Asahi Hishida
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Kenji Wakai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
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19
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Tamura T, Kadomatsu Y, Tsukamoto M, Okada R, Sasakabe T, Kawai S, Hishida A, Hara M, Tanaka K, Shimoshikiryo I, Takezaki T, Watanabe I, Matsui D, Nishiyama T, Suzuki S, Endoh K, Kuriki K, Kita Y, Katsuura-Kamano S, Arisawa K, Ikezaki H, Furusyo N, Koyanagi YN, Oze I, Nakamura Y, Mikami H, Naito M, Wakai K. Association of exposure level to passive smoking with hypertension among lifetime nonsmokers in Japan: a cross-sectional study. Medicine (Baltimore) 2018; 97:e13241. [PMID: 30508907 PMCID: PMC6283225 DOI: 10.1097/md.0000000000013241] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Brief exposure to passive smoking immediately elevates blood pressure. However, little is known about the association between exposure to passive smoking and chronic hypertension. We aimed to examine this association in a cross-sectional study, after controlling multiple potential confounders.Participants included 32,098 lifetime nonsmokers (7,216 men and 24,882 women) enrolled in the Japan Multi-Institutional Collaborative Cohort Study. Passive smoking was assessed using a self-administered questionnaire. The single question about exposure to passive smoking had five response options: "sometimes or almost never," "almost every day, 2 hours/day or less," "almost every day, 2 to 4 hours/day," "almost every day, 4 to 6 hours/day," and "almost every day, 6 hours/day or longer." Hypertension was defined as any of the following: systolic blood pressure ≥140 mmHg, diastolic blood pressure ≥90 mmHg, or use of antihypertensive medication. Multivariate-adjusted odds ratio (OR) and 95% confidence interval (CI) for hypertension were estimated by exposure level to passive smoking using unconditional logistic regression models.The multivariate-adjusted OR for hypertension in those exposed almost every day was 1.11 (95% CI: 1.03-1.20) compared with those exposed sometimes or almost never. The OR for a 1-hour per day increase in exposure was 1.03 (95% CI: 1.01-1.06, Pfor trend = .006). This association was stronger in men than in women; the ORs were 1.08 (95% CI: 1.01-1.15, Pfor trend = .036) and 1.03 (95% CI: 1.00-1.05, Pfor trend = .055), respectively.Our findings suggest importance of tobacco smoke control for preventing hypertension.
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Affiliation(s)
- Takashi Tamura
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya
| | - Yuka Kadomatsu
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya
| | - Mineko Tsukamoto
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya
| | - Rieko Okada
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya
| | - Tae Sasakabe
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya
- Department of Public Health, Aichi Medical University School of Medicine, Nagakute
| | - Sayo Kawai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya
- Department of Public Health, Aichi Medical University School of Medicine, Nagakute
| | - Asahi Hishida
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya
| | - Megumi Hara
- Department of Preventive Medicine, Faculty of Medicine, Saga University, Saga
| | - Keitaro Tanaka
- Department of Preventive Medicine, Faculty of Medicine, Saga University, Saga
| | - Ippei Shimoshikiryo
- Department of International Island and Community Medicine, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima
| | - Toshiro Takezaki
- Department of International Island and Community Medicine, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima
| | - Isao Watanabe
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine, Kyoto
| | - Daisuke Matsui
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine, Kyoto
| | - Takeshi Nishiyama
- Department of Public Health, Nagoya City University Graduate School of Medical Sciences, Nagoya
| | - Sadao Suzuki
- Department of Public Health, Nagoya City University Graduate School of Medical Sciences, Nagoya
| | - Kaori Endoh
- Laboratory of Public Health, Division of Nutritional Sciences, School of Food and Nutritional Sciences, University of Shizuoka, Shizuoka
| | - Kiyonori Kuriki
- Laboratory of Public Health, Division of Nutritional Sciences, School of Food and Nutritional Sciences, University of Shizuoka, Shizuoka
| | - Yoshikuni Kita
- Faculty of Nursing Science, Tsuruga Nursing University, Tsuruga
| | - Sakurako Katsuura-Kamano
- Department of Preventive Medicine, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima
| | - Kokichi Arisawa
- Department of Preventive Medicine, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima
| | - Hiroaki Ikezaki
- Department of Environmental Medicine and Infectious Disease, Graduate School of Medical Sciences, Kyushu University, Fukuoka
| | - Norihiro Furusyo
- Department of Environmental Medicine and Infectious Disease, Graduate School of Medical Sciences, Kyushu University, Fukuoka
| | - Yuriko N Koyanagi
- Division of Cancer Information and Control, Aichi Cancer Center Research Institute, Nagoya
| | - Isao Oze
- Division of Cancer Epidemiology and Prevention, Aichi Cancer Center Research Institute, Nagoya
| | - Yohko Nakamura
- Cancer Prevention Center, Chiba Cancer Center Research Institute, Chiba
| | - Haruo Mikami
- Cancer Prevention Center, Chiba Cancer Center Research Institute, Chiba
| | - Mariko Naito
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya
- Department of Oral Epidemiology, Hiroshima University Graduate School of Biomedical and Health Sciences, Hiroshima, Japan
| | - Kenji Wakai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya
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20
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Hishida A, Nakatochi M, Akiyama M, Kamatani Y, Nishiyama T, Ito H, Oze I, Nishida Y, Hara M, Takashima N, Turin TC, Watanabe M, Suzuki S, Ibusuki R, Shimoshikiryo I, Nakamura Y, Mikami H, Ikezaki H, Furusyo N, Kuriki K, Endoh K, Koyama T, Matsui D, Uemura H, Arisawa K, Sasakabe T, Okada R, Kawai S, Naito M, Momozawa Y, Kubo M, Wakai K. Genome-Wide Association Study of Renal Function Traits: Results from the Japan Multi-Institutional Collaborative Cohort Study. Am J Nephrol 2018; 47:304-316. [PMID: 29779033 DOI: 10.1159/000488946] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 03/29/2018] [Indexed: 11/19/2022]
Abstract
BACKGROUND Chronic kidney disease (CKD) is a rapidly growing, worldwide public health problem. Recent advances in genome-wide-association studies (GWAS) revealed several genetic loci associated with renal function traits worldwide. METHODS We investigated the association of genetic factors with the levels of serum creatinine (SCr) and the estimated glomerular filtration rate (eGFR) in Japanese population-based cohorts analyzing the GWAS imputed data with 11,221 subjects and 12,617,569 variants, and replicated the findings with the 148,829 hospital-based Japanese subjects. RESULTS In the discovery phase, 28 variants within 4 loci (chromosome [chr] 2 with 8 variants including rs3770636 in the LDL receptor related protein 2 gene locus, on chr 5 with 2 variants including rs270184, chr 17 with 15 variants including rs3785837 in the BCAS3 gene locus, and chr 18 with 3 variants including rs74183647 in the nuclear factor of -activated T-cells 1 gene locus) reached the suggestive level of p < 1 × 10-6 in association with eGFR and SCr, and 2 variants on chr 4 (including rs78351985 in the microsomal triglyceride transfer protein gene locus) fulfilled the suggestive level in association with the risk of CKD. In the replication phase, 25 variants within 3 loci (chr 2 with 7 variants, chr 17 with 15 variants and chr 18 with 3 variants) in association with eGFR and SCr, and 2 variants on chr 4 associated with the risk of CKD became nominally statistically significant after Bonferroni correction, among which 15 variants on chr 17 and 3 variants on chr 18 reached genome-wide significance of p < 5 × 10-8 in the combined study meta-analysis. The associations of the loci on chr 2 and 18 with eGFR and SCr as well as that on chr 4 with CKD risk have not been previously reported in the Japanese and East Asian populations. CONCLUSION Although the present GWAS of renal function traits included the largest sample of Japanese participants to date, we did not identify novel loci for renal traits. However, we identified the novel associations of the genetic loci on chr 2, 4, and 18 with renal function traits in the Japanese population, suggesting these are transethnic loci. Further investigations of these associations are expected to further validate our findings for the potential establishment of personalized prevention of renal disease in the Japanese and East Asian populations.
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MESH Headings
- Adult
- Aged
- Asian People/genetics
- Chromosomes, Human, Pair 18/genetics
- Chromosomes, Human, Pair 2/genetics
- Chromosomes, Human, Pair 4/genetics
- Cohort Studies
- Creatinine/blood
- Female
- Genetic Loci
- Genetic Predisposition to Disease
- Genome-Wide Association Study
- Glomerular Filtration Rate
- Humans
- Japan/epidemiology
- Kidney/physiopathology
- Male
- Middle Aged
- Polymorphism, Single Nucleotide
- Prevalence
- Renal Insufficiency, Chronic/blood
- Renal Insufficiency, Chronic/epidemiology
- Renal Insufficiency, Chronic/genetics
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Affiliation(s)
- Asahi Hishida
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masahiro Nakatochi
- Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya, Japan
| | - Masato Akiyama
- RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Yoichiro Kamatani
- RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
- Center for Genomic Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Takeshi Nishiyama
- Department of Public Health, Aichi Medical University School of Medicine, Nagakute, Japan
| | - Hidemi Ito
- Division of Molecular and Clinical Epidemiology, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Isao Oze
- Division of Molecular and Clinical Epidemiology, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Yuichiro Nishida
- Department of Preventive Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Megumi Hara
- Department of Preventive Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Naoyuki Takashima
- Department of Health Science, Shiga University of Medical Science, Otsu, Japan
| | - Tanvir Chowdhury Turin
- Department of Family Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Miki Watanabe
- Department of Public Health, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Sadao Suzuki
- Department of Public Health, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Rie Ibusuki
- Department of International Island and Community Medicine, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Ippei Shimoshikiryo
- Department of International Island and Community Medicine, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Yohko Nakamura
- Cancer Prevention Center, Chiba Cancer Center Research Institute, Chiba, Japan
| | - Haruo Mikami
- Cancer Prevention Center, Chiba Cancer Center Research Institute, Chiba, Japan
| | - Hiroaki Ikezaki
- Department of Geriatric Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Norihiro Furusyo
- Department of Geriatric Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kiyonori Kuriki
- Laboratory of Public Health, School of Food and Nutritional Sciences, University of Shizuoka, Shizuoka, Japan
| | - Kaori Endoh
- Laboratory of Public Health, School of Food and Nutritional Sciences, University of Shizuoka, Shizuoka, Japan
| | - Teruhide Koyama
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Daisuke Matsui
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hirokazu Uemura
- Department of Preventive Medicine, Institute of Health Biosciences, University of Tokushima Graduate School, Tokushima, Japan
| | - Kokichi Arisawa
- Department of Preventive Medicine, Institute of Health Biosciences, University of Tokushima Graduate School, Tokushima, Japan
| | - Tae Sasakabe
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Rieko Okada
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Sayo Kawai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Mariko Naito
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | | | - Michiaki Kubo
- RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Kenji Wakai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
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21
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Nakagawa-Senda H, Hachiya T, Shimizu A, Hosono S, Oze I, Watanabe M, Matsuo K, Ito H, Hara M, Nishida Y, Endoh K, Kuriki K, Katsuura-Kamano S, Arisawa K, Nindita Y, Ibusuki R, Suzuki S, Hosono A, Mikami H, Nakamura Y, Takashima N, Nakamura Y, Kuriyama N, Ozaki E, Furusyo N, Ikezaki H, Nakatochi M, Sasakabe T, Kawai S, Okada R, Hishida A, Naito M, Wakai K, Momozawa Y, Kubo M, Tanaka H. A genome-wide association study in the Japanese population identifies the 12q24 locus for habitual coffee consumption: The J-MICC Study. Sci Rep 2018; 8:1493. [PMID: 29367735 PMCID: PMC5784172 DOI: 10.1038/s41598-018-19914-w] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [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: 05/15/2017] [Accepted: 01/08/2018] [Indexed: 12/01/2022] Open
Abstract
Coffee is one of the most widely consumed beverages worldwide, and its role in human health has received much attention. Although genome-wide association studies (GWASs) have investigated genetic variants associated with coffee consumption in European populations, no such study has yet been conducted in an Asian population. Here, we conducted a GWAS to identify common genetic variations that affected coffee consumption in a Japanese population of 11,261 participants recruited as a part of the Japan Multi-Institutional Collaborative Cohort (J-MICC) study. Coffee consumption was collected using a self-administered questionnaire, and converted from categories to cups/day. In the discovery stage (n = 6,312), we found 2 independent loci (12q24.12–13 and 5q33.3) that met suggestive significance (P < 1 × 10−6). In the replication stage (n = 4,949), the lead variant for the 12q24.12–13 locus (rs2074356) was significantly associated with habitual coffee consumption (P = 2.2 × 10−6), whereas the lead variant for the 5q33.3 locus (rs1957553) was not (P = 0.53). A meta-analysis of the discovery and replication populations, and the combined analysis using all subjects, revealed that rs2074356 achieved genome-wide significance (P = 2.2 × 10−16 for a meta-analysis). These findings indicate that the 12q24.12-13 locus is associated with coffee consumption among a Japanese population.
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Affiliation(s)
- Hiroko Nakagawa-Senda
- Division of Epidemiology and Prevention, Aichi Cancer Center Research Institute, Nagoya, Japan. .,Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan. .,Department of Public Health, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.
| | - Tsuyoshi Hachiya
- Division of Biomedical Information Analysis, Iwate Tohoku Medical Megabank Organization, Disaster Reconstruction Center, Iwate Medical University, Morioka, Japan
| | - Atsushi Shimizu
- Division of Biomedical Information Analysis, Iwate Tohoku Medical Megabank Organization, Disaster Reconstruction Center, Iwate Medical University, Morioka, Japan
| | - Satoyo Hosono
- Division of Epidemiology and Prevention, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Isao Oze
- Division of Molecular and Clinical Epidemiology, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Miki Watanabe
- Division of Epidemiology and Prevention, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Keitaro Matsuo
- Division of Molecular and Clinical Epidemiology, Aichi Cancer Center Research Institute, Nagoya, Japan.,Department of Epidemiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hidemi Ito
- Division of Molecular and Clinical Epidemiology, Aichi Cancer Center Research Institute, Nagoya, Japan.,Department of Epidemiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Megumi Hara
- Department of Preventive Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Yuichiro Nishida
- Department of Preventive Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Kaori Endoh
- Laboratory of Public Health, Division of Nutritional Sciences, School of Food and Nutritional Sciences, University of Shizuoka, Shizuoka, Japan
| | - Kiyonori Kuriki
- Laboratory of Public Health, Division of Nutritional Sciences, School of Food and Nutritional Sciences, University of Shizuoka, Shizuoka, Japan
| | - Sakurako Katsuura-Kamano
- Department of Preventive Medicine, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Kokichi Arisawa
- Department of Preventive Medicine, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Yora Nindita
- Department of International Island and Community Medicine, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Rie Ibusuki
- Department of International Island and Community Medicine, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Sadao Suzuki
- Department of Public Health, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Akihiro Hosono
- Department of Public Health, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Haruo Mikami
- Division of Cancer Prevention and Epidemiology, Chiba Cancer Center, Chiba, Japan
| | - Yohko Nakamura
- Division of Cancer Prevention and Epidemiology, Chiba Cancer Center, Chiba, Japan
| | - Naoyuki Takashima
- Department of Public Health, Shiga University of Medical Science, Shiga, Japan
| | - Yasuyuki Nakamura
- Department of Food Science and Human Nutrition, Faculty of Agriculture, Ryukoku University, Kyoto, Japan
| | - Nagato Kuriyama
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Etsuko Ozaki
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Norihiro Furusyo
- Department of Environmental Medicine and Infectious Disease, Kyushu University, Fukuoka, Japan
| | - Hiroaki Ikezaki
- Department of Environmental Medicine and Infectious Disease, Kyushu University, Fukuoka, Japan
| | - Masahiro Nakatochi
- Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya, Japan
| | - Tae Sasakabe
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Sayo Kawai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Rieko Okada
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Asahi Hishida
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Mariko Naito
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kenji Wakai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yukihide Momozawa
- Laboratory for Genotyping Development, Center for Integrative Medical Sciences, RIKEN, Kanagawa, Japan
| | - Michiaki Kubo
- Laboratory for Genotyping Development, Center for Integrative Medical Sciences, RIKEN, Kanagawa, Japan
| | - Hideo Tanaka
- Division of Epidemiology and Prevention, Aichi Cancer Center Research Institute, Nagoya, Japan
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22
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Sasakabe T, Wakai K, Kawai S, Hishida A, Naito M, Suzuki S, Nindita Y, Arisawa K, Kita Y, Hara M, Kuriyama N, Hirata A, Mikami H, Oze I, Kubo M, Tanaka H, Hamajima N. Modification of the Associations of Alcohol Intake With Serum Low-Density Lipoprotein Cholesterol and Triglycerides by ALDH2 and ADH1B Polymorphisms in Japanese Men. J Epidemiol 2017; 28:185-193. [PMID: 29176272 PMCID: PMC5865009 DOI: 10.2188/jea.je20160189] [Citation(s) in RCA: 11] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Background Although beneficial associations have been reported between moderate alcohol intake and the serum lipid profile, it is unclear whether polymorphisms in alcohol-metabolizing enzymes can modify these associations. Here, we assessed the effects of ADH1B His48Arg (rs1229984), ALDH2 Glu504Lys (rs671), and their combination on these associations. Furthermore, we examined if the findings for ALDH2 could be replicated. Methods We categorized 889 male participants in the Japan Multi-Institutional Collaborative Cohort (J-MICC) Study into two groups based on presence or absence of minor allele(s) or four groups based on genotype combinations. We performed regression analyses of serum lipid concentrations on alcohol intake, with multivariable adjustment. The replication study was conducted among 2,562 men in the Shizuoka part of the J-MICC Study. Results The ALDH2 Glu/Lys or Lys/Lys groups showed significant decreases in serum low-density lipoprotein (LDL) cholesterol with increasing alcohol consumption; the coefficient per intake increase of 10 g/day was −2.49 mg/dL (95% confidence interval [CI], −3.85 to −1.13), and a significant interaction with the polymorphism was confirmed (P for interaction = 0.006). This inverse correlation was more evident among the ADH1B His/His + ALDH2 Glu/Lys or Lys/Lys groups (−3.24 mg/dL, 95% CI, −5.03 to −1.45). Serum triglycerides were positively associated with alcohol consumption in the ADH1B His/His group (P for interaction = 0.020). The stronger association between serum LDL cholesterol and alcohol consumption in the ALDH2 Glu/Lys or Lys/Lys groups was replicated. Conclusions The ALDH2 Glu504Lys polymorphism can modify the association between alcohol intake and serum LDL cholesterol in Japanese men.
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Affiliation(s)
- Tae Sasakabe
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine
| | - Kenji Wakai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine
| | - Sayo Kawai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine
| | - Asahi Hishida
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine
| | - Mariko Naito
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine
| | - Sadao Suzuki
- Department of Public Health, Nagoya City University Graduate School of Medical Sciences
| | - Yora Nindita
- Department of International Island and Community Medicine, Kagoshima University Graduate School of Medical and Dental Sciences.,Department of Pharmacology and Therapeutic, Faculty of Medicine, Diponegoro University
| | - Kokichi Arisawa
- Department of Preventive Medicine, Institute of Biomedical Sciences, Tokushima University Graduate School
| | | | - Megumi Hara
- Department of Preventive Medicine, Faculty of Medicine, Saga University
| | - Nagato Kuriyama
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine Graduate School of Medical Science
| | - Akie Hirata
- Department of Geriatric Medicine, Graduate School of Medical Sciences, Kyushu University
| | - Haruo Mikami
- Division of Cancer Registry, Prevention and Epidemiology, Chiba Cancer Center Research Institute
| | - Isao Oze
- Division of Epidemiology and Prevention, Aichi Cancer Center Research Institute
| | | | - Hideo Tanaka
- Division of Epidemiology and Prevention, Aichi Cancer Center Research Institute.,Department of Epidemiology, Nagoya University Graduate School of Medicine
| | - Nobuyuki Hamajima
- Department of Healthcare Administration, Nagoya University Graduate School of Medicine
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23
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Seiki T, Naito M, Hishida A, Takagi S, Matsunaga T, Sasakabe T, Hattori Y, Kawai S, Okada R, Yin G, Hamajima N, Wakai K. Association of genetic polymorphisms with erythrocyte traits: Verification of SNPs reported in a previous GWAS in a Japanese population. Gene 2017; 642:172-177. [PMID: 29133146 DOI: 10.1016/j.gene.2017.11.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 10/18/2017] [Accepted: 11/09/2017] [Indexed: 11/25/2022]
Abstract
Erythrocyte count and volume are the commonly used hematological indices for anemia that change in various diseases. To date, however, only one study ever exists that addressed erythrocyte trait-associated single nucleotide polymorphisms (SNPs) in a Japanese population. Because that study was performed in patients with various diseases, we confirmed the reported associations in a general population. Participants in the current study were from the Shizuoka component of the Japan Multi-Institutional Collaborative Cohort Study, which included 4971 men and women aged 35 to 69years who were recruited between 2006 and 2007. We analyzed the association of seven selected SNPs with the following erythrocyte traits: red blood cell count, hemoglobin (Hb) and hematocrit (Ht) levels, mean corpuscular volume, mean corpuscular hemoglobin, and mean corpuscular hemoglobin concentration. The erythrocyte traits were regressed on a number of minor alleles of selected SNPs. Then we compared our findings with those from a genome-wide association study performed in a Japanese population. We replicated the association of ABO rs495828, PDGFRA-KIT rs218237, USP49-MED20-BSYL-CCND3 rs3218097, C6orf182-CD164 rs11966072, TERT rs2736100, and TMPRSS6 rs5756504 with erythrocyte traits in our independent Japanese population. In addition, we found a significant interaction between TERT rs2736100 and smoking habit that affected Hb and Ht levels.
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Affiliation(s)
- Toshio Seiki
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Mariko Naito
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Asahi Hishida
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Sahoko Takagi
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takashi Matsunaga
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tae Sasakabe
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuta Hattori
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Sayo Kawai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Rieko Okada
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Guang Yin
- Department of Nutritional Sciences, Faculty of Health and Welfare, Seinan Jo Gakuin University, Kitakyushu, Japan
| | - Nobuyuki Hamajima
- Department of Healthcare Administration, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kenji Wakai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan.
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24
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Koyama T, Kuriyama N, Ozaki E, Matsui D, Watanabe I, Takeshita W, Iwai K, Watanabe Y, Nakatochi M, Shimanoe C, Tanaka K, Oze I, Ito H, Uemura H, Katsuura-Kamano S, Ibusuki R, Shimoshikiryo I, Takashima N, Kadota A, Kawai S, Sasakabe T, Okada R, Hishida A, Naito M, Kuriki K, Endoh K, Furusyo N, Ikezaki H, Suzuki S, Hosono A, Mikami H, Nakamura Y, Kubo M, Wakai K. Genetic Variants of RAMP2 and CLR are Associated with Stroke. J Atheroscler Thromb 2017; 24:1267-1281. [PMID: 28904253 PMCID: PMC5742372 DOI: 10.5551/jat.41517] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
AIM Stroke is associated closely with vascular homeostasis, and several complex processes and interacting pathways, which involve various genetic and environmental factors, contribute to the risk of stroke. Although adrenomedullin (ADM) has a number of physiological and vasoprotective functions, there are few studies of the ADM receptor system in humans. The ADM receptor comprises a calcitonin-receptor-like receptor (CLR) and receptor activity-modifying proteins (RAMPs). We analyzed single nucleotide polymorphisms (SNPs) in the RAMP2 and CLR genes to determine their association with stroke in the light of gene-environment interactions. METHODS Using cross-sectional data from the Japan Multi-Institutional Collaborative Cohort Study in the baseline surveys, 14,087 participants from 12 research areas were genotyped. We conducted a hypothesis-based association between stroke prevalence and SNPs in the RAMP2 and CLR genes based on data abstracted from two SNPs in RAMP2 and 369 SNPs in CLR. We selected five SNPs from among the CLR variants (rs77035639, rs3815524, rs75380157, rs574603859, and rs147565266) and one RAMP2 SNP (rs753152), which were associated with stroke, for analysis. RESULTS Five of the SNPs (rs77035639, rs3815524, rs75380157, rs147565266, and rs753152) showed no significant association with obesity, ischemic heart disease, hypertension, dyslipidemia, and diabetes. In the logistic regression analysis, rs574603859 had a lower odds ratio (0.238; 95% confidence interval, 0.076-0.745, adjusted for age, sex, and research area) and the other SNPs had higher odds ratios for association with stroke. CONCLUSIONS This was the first study to investigate the relationships between ADM receptor genes (RAMP2 and CLR) and stroke in the light of gene-environment interactions in human.
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Affiliation(s)
- Teruhide Koyama
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine
| | - Nagato Kuriyama
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine
| | - Etsuko Ozaki
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine
| | - Daisuke Matsui
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine
| | - Isao Watanabe
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine
| | - Wakiko Takeshita
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine
| | - Komei Iwai
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine
| | - Yoshiyuki Watanabe
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine
| | - Masahiro Nakatochi
- Center for Advanced Medicine and Clinical Research, Nagoya University Hospital
| | - Chisato Shimanoe
- Department of Preventive Medicine, Faculty of Medicine, Saga University
| | - Keitaro Tanaka
- Department of Preventive Medicine, Faculty of Medicine, Saga University
| | - Isao Oze
- Division of Molecular and Clinical Epidemiology, Aichi Cancer Center Research Institute
| | - Hidemi Ito
- Division of Molecular and Clinical Epidemiology, Aichi Cancer Center Research Institute
| | - Hirokazu Uemura
- Department of Preventive Medicine, Institute of Biomedical Sciences, Tokushima University Graduate School
| | - Sakurako Katsuura-Kamano
- Department of Preventive Medicine, Institute of Biomedical Sciences, Tokushima University Graduate School
| | - Rie Ibusuki
- Department of International Islands and Community Medicine, Kagoshima University Graduate School of Medical and Dental Sciences
| | - Ippei Shimoshikiryo
- Department of International Islands and Community Medicine, Kagoshima University Graduate School of Medical and Dental Sciences
| | | | - Aya Kadota
- Department of Public Health, Shiga University of Medical Science.,Center for Epidemiologic Research in Asia, Shiga University of Medical Science
| | - Sayo Kawai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine
| | - Tae Sasakabe
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine
| | - Rieko Okada
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine
| | - Asahi Hishida
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine
| | - Mariko Naito
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine
| | - Kiyonori Kuriki
- Laboratory of Public Health, School of Food and Nutritional Sciences, University of Shizuoka
| | - Kaori Endoh
- Laboratory of Public Health, School of Food and Nutritional Sciences, University of Shizuoka
| | - Norihiro Furusyo
- Department of Environmental Medicine and Infectious Disease, Kyushu University
| | - Hiroaki Ikezaki
- Department of Environmental Medicine and Infectious Disease, Kyushu University
| | - Sadao Suzuki
- Department of Public Health, Nagoya City University Graduate School of Medical Sciences
| | - Akihiro Hosono
- Department of Public Health, Nagoya City University Graduate School of Medical Sciences
| | - Haruo Mikami
- Cancer Prevention Center, Chiba Cancer Center Research Institute
| | - Yohko Nakamura
- Cancer Prevention Center, Chiba Cancer Center Research Institute
| | - Michiaki Kubo
- Laboratory for Genotyping Development, Center for Integrative Medical Sciences, RIKEN
| | - Kenji Wakai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine
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25
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Hattori Y, Naito M, Satoh M, Nakatochi M, Naito H, Kato M, Takagi S, Matsunaga T, Seiki T, Sasakabe T, Suma S, Kawai S, Okada R, Hishida A, Hamajima N, Wakai K. Response to the letter to the editor: Metallothionein MT2A A-5G polymorphism and the risk for chronic kidney disease and diabetes. Toxicol Sci 2016; 154:198-199. [PMID: 27742870 DOI: 10.1093/toxsci/kfw205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Accepted: 09/25/2016] [Indexed: 11/12/2022] Open
Affiliation(s)
- Yuta Hattori
- *Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550 Japan; Labour Force Statistics Office, Statistical Survey Department, Statistics Bureau, Ministry of Internal Affairs and Communications, Shinjuku, Tokyo, 162-8668 Japan;
| | - Mariko Naito
- *Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550 Japan
| | - Masahiko Satoh
- Laboratory of Pharmaceutical Health Sciences, School of Pharmacy, Aichi Gakuin University, Nagoya, Aichi, 464-8650 Japan
| | - Masahiro Nakatochi
- Statistical Analysis Section, Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya, Aichi, 466-8550 Japan
| | - Hisao Naito
- Department of Public Health, Fujita Health University School of Medicine, Toyoake, Aichi, 470-1192 Japan
| | - Masashi Kato
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550 Japan
| | - Sahoko Takagi
- *Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550 Japan
| | - Takashi Matsunaga
- *Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550 Japan
| | - Toshio Seiki
- *Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550 Japan
| | - Tae Sasakabe
- *Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550 Japan
| | - Shino Suma
- *Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550 Japan; Section of Preventive and Public Health Dentistry, Faculty of Dental Science, Kyusyu University, Fukuoka, Fukuoka, 812-8582 Japan
| | - Sayo Kawai
- *Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550 Japan
| | - Rieko Okada
- *Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550 Japan
| | - Asahi Hishida
- *Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550 Japan
| | - Nobuyuki Hamajima
- Department of Healthcare Administration, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550 Japan
| | - Kenji Wakai
- *Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550 Japan
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Hattori Y, Naito M, Satoh M, Nakatochi M, Naito H, Kato M, Takagi S, Matsunaga T, Seiki T, Sasakabe T, Suma S, Kawai S, Okada R, Hishida A, Hamajima N, Wakai K. Metallothionein MT2A A-5G Polymorphism as a Risk Factor for Chronic Kidney Disease and Diabetes: Cross-Sectional and Cohort Studies. Toxicol Sci 2016; 152:181-93. [PMID: 27122239 PMCID: PMC4922544 DOI: 10.1093/toxsci/kfw080] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Metallothioneins (MTs) are proteins that protect cells from toxic agents such as heavy metal ions or reactive oxygen species. MT2A A-5G is a single nucleotide polymorphism in the promoter region of the MT2A gene, and the minor G allele results in lower transcription efficiency. We aimed to elucidate associations between MT2A A-5G and risks of 2 diseases potentially related to lowered MT expression, chronic kidney disease (CKD), and diabetes mellitus (DM), in a community-dwelling population. Study subjects were Nagoya city residents participating in the Japan Multi-Institutional Collaborative Cohort Study (J-MICC) Daiko Study, comprised 749 men and 2,025 women, aged 39-75 years. CKD (>stage 3) and DM were defined by standard guidelines. Associations were evaluated using logistic regression models with adjustments for age, sex and potential confounders in a cross-sectional study, and verified in a 5-year longitudinal study. Odds ratios (OR [95% confidence interval]) were calculated relative to the AA genotype. Serum MT (I + II), Cd and zinc levels were also determined by genotype. The OR of the GG genotype for CKD risk was 3.98 (1.50, 10.58) in the cross-sectional study and 5.17 (1.39, 19.28) in the longitudinal study. The OR of the GA genotype for DM was 1.86 (1.26, 2.75) in the cross-sectional study and 2.03 (1.19, 3.46) in the longitudinal study. MT2A A-5G may be associated with CKD and DM risks. This polymorphism is a promising target for evaluations of CKD and DM risks with possible involvement of low-dose chronic exposure to environmental pollutants.
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Affiliation(s)
- Yuta Hattori
- *Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Mariko Naito
- *Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Masahiko Satoh
- Laboratory of Pharmaceutical Health Sciences, School of Pharmacy, Aichi Gakuin University, Nagoya, Aichi, 464-8650, Japan
| | - Masahiro Nakatochi
- Biostatistics and Bioinformatics Section, Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya, Aichi, 466-8550, Japan
| | - Hisao Naito
- Department of Public Health, Fujita Health University School of Medicine, Toyoake, Aichi, 470-1192, Japan
| | - Masashi Kato
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Sahoko Takagi
- *Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Takashi Matsunaga
- *Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Toshio Seiki
- *Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Tae Sasakabe
- *Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Shino Suma
- *Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan Department of Oral Disease Research, National Center for Geriatrics and Gerontology, Obu, Aichi, 474-8511, Japan
| | - Sayo Kawai
- *Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Rieko Okada
- *Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Asahi Hishida
- *Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Nobuyuki Hamajima
- Department of Healthcare Administration, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Kenji Wakai
- *Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
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Tamura T, Morita E, Kawai S, Sasakabe T, Sugimoto Y, Fukuda N, Suma S, Nakagawa H, Okada R, Hishida A, Naito M, Hamajima N, Wakai K. No association between Helicobacter pylori infection and diabetes mellitus among a general Japanese population: a cross-sectional study. Springerplus 2015; 4:602. [PMID: 26543737 PMCID: PMC4627969 DOI: 10.1186/s40064-015-1371-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Accepted: 09/24/2015] [Indexed: 02/07/2023]
Abstract
Several case-control studies have reported that patients with diabetes mellitus (DM) had a higher prevalence of Helicobacter pylori infection than those without DM, but these findings remain equivocal. Additionally, there are few studies examining associations between East Asian CagA-positive H. pylori and DM. This cross-sectional study aimed to investigate whether H. pylori infection was a possible risk factor for DM in a general Japanese population. The study included 5165 subjects (1467 men, 3698 women) aged 35–69 years from the Daiko Study, part of the Japan Multi-Institutional Collaborative Cohort Study. A urinary anti-H. pylori antibody was used to detect H. pylori infection. The medical history of physician-diagnosed DM was confirmed by self-administered questionnaire. The odds ratios (ORs) and their 95 % confidence intervals (CIs) for DM (current and former) were calculated using unconditional logistic regression analysis, adjusting for age, sex, educational status, alcohol use, smoking status, body mass index, energy intake, and physical activity. The prevalence of DM was 4.6 % (95 % CI 3.7–5.6 %) among 1878 participants with H. pylori infection and 3.2 % (2.6–3.8 %) among 3287 without the infection (p = 0.009). The crude, age-adjusted, and multivariate-adjusted ORs for DM in those with the infection relative to those without were 1.47 (95 % CI 1.10–1.97), 1.02 (0.76–1.38), and 0.97 (0.71–1.32), respectively. We found a significantly higher DM prevalence among those with H. pylori infection than among those without. However, almost all the difference in prevalence could be explained by the older age of those infected. Our findings did not support an association between H. pylori infection and DM.
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Affiliation(s)
- Takashi Tamura
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550 Japan ; Department of Epidemiology and Preventive Medicine, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu, 501-1194 Japan
| | - Emi Morita
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550 Japan ; Environmental Planning Laboratory, Department of Forest Management, Forestry and Forest Products Research Institute, National Research and Development Agency, 1 Matsunosato, Tsukuba, 305-8687 Japan
| | - Sayo Kawai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550 Japan
| | - Tae Sasakabe
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550 Japan
| | - Yuka Sugimoto
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550 Japan
| | - Nana Fukuda
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550 Japan
| | - Shino Suma
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550 Japan ; Department of Oral Disease Research, National Center for Geriatrics and Gerontology, 7-430 Morioka-cho, Obu, 474-8511 Japan
| | - Hiroko Nakagawa
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550 Japan ; Division of Epidemiology and Prevention, Aichi Cancer Center Research Institute, 1-1 Kanokoden, Chikusa-ku, Nagoya, 464-8681 Japan
| | - Rieko Okada
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550 Japan
| | - Asahi Hishida
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550 Japan
| | - Mariko Naito
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550 Japan
| | - Nobuyuki Hamajima
- Department of Healthcare Administration, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550 Japan
| | - Kenji Wakai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550 Japan
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28
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Tamura T, Morita E, Kawai S, Sasakabe T, Fukuda N, Sugimoto Y, Suma S, Mokuno J, Nakagawa H, Hishida A, Okada R, Naito M, Hamajima N, Wakai K. Significant Associations of Abdominal Obesity with LYPLAL1 Polymorphism (rs4846567) among a General Japanese Population: A Cross-Sectional Study. Int J Epidemiol 2015. [DOI: 10.1093/ije/dyv096.441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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29
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Sasakabe T, Yin G, Naito M, Morita E, Kawai S, Okada R, Tamura T, Nakagawa H, Suma S, Fukuda N, Sugimoto Y, Wakai K, Hamajima N, Study Group JM. The Association of Alcohol Intake with Serum Lipid Profile and its Modification by ADH1B and ALDH2 Polymorphisms: J-MICC Study. Int J Epidemiol 2015. [DOI: 10.1093/ije/dyv096.105] [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: 11/12/2022] Open
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30
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Suma S, Naito M, Wakai K, Sasakabe T, Hattori Y, Okada R, Kawai S, Hishida A, Morita E, Nakagawa H, Tamura T, Hamajima N. Effects ofIL6C-634G polymorphism on tooth loss and their interaction with smoking habits. Oral Dis 2015; 21:807-13. [DOI: 10.1111/odi.12352] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Revised: 04/30/2015] [Accepted: 05/13/2015] [Indexed: 11/28/2022]
Affiliation(s)
- S Suma
- Department of Preventive Medicine; Nagoya University Graduate School of Medicine; Nagoya Japan
| | - M Naito
- Department of Preventive Medicine; Nagoya University Graduate School of Medicine; Nagoya Japan
| | - K Wakai
- Department of Preventive Medicine; Nagoya University Graduate School of Medicine; Nagoya Japan
| | - T Sasakabe
- Department of Preventive Medicine; Nagoya University Graduate School of Medicine; Nagoya Japan
| | - Y Hattori
- Department of Preventive Medicine; Nagoya University Graduate School of Medicine; Nagoya Japan
| | - R Okada
- Department of Preventive Medicine; Nagoya University Graduate School of Medicine; Nagoya Japan
| | - S Kawai
- Department of Preventive Medicine; Nagoya University Graduate School of Medicine; Nagoya Japan
| | - A Hishida
- Department of Preventive Medicine; Nagoya University Graduate School of Medicine; Nagoya Japan
| | - E Morita
- Department of Preventive Medicine; Nagoya University Graduate School of Medicine; Nagoya Japan
| | - H Nakagawa
- Department of Preventive Medicine; Nagoya University Graduate School of Medicine; Nagoya Japan
- Division of Epidemiology & Prevention; Aichi Cancer Center Research Institute; Nagoya Japan
| | - T Tamura
- Department of Preventive Medicine; Nagoya University Graduate School of Medicine; Nagoya Japan
- Department of Epidemiology and Preventive Medicine; Gifu University Graduate School of Medicine; Gifu Japan
| | - N Hamajima
- Department of Healthcare Administration; Nagoya University Graduate School of Medicine; Nagoya Japan
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Sasakabe T, Haimoto H, Umegaki H, Wakai K. Association of decrease in carbohydrate intake with reduction in abdominal fat during 3-month moderate low-carbohydrate diet among non-obese Japanese patients with type 2 diabetes. Metabolism 2015; 64:618-25. [PMID: 25682064 DOI: 10.1016/j.metabol.2015.01.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [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: 06/20/2014] [Revised: 01/08/2015] [Accepted: 01/23/2015] [Indexed: 01/31/2023]
Abstract
OBJECTIVE The effectiveness of a moderate low-carbohydrate diet (M-LCD) has been demonstrated in terms of glycemic control, body weight and serum lipid profiles. We investigated the effect of a 3-month M-LCD on visceral adipose tissue (VAT) and subcutaneous adipose tissue (SAT), and examined an association between decrease in carbohydrate intake and reduction in abdominal fat among patients with Type 2 diabetes mellitus (T2DM). METHODS Seventy-six patients (45 men and 31 women; mean age ± SD: 59.5 ± 11.1 years) with T2DM were instructed to follow an M-LCD for 3 months. We assessed abdominal fat distribution using computed tomography and macronutrient intakes from 3-day dietary records at baseline and after 3 months. RESULTS The patients complied well with the M-LCD - %carbohydrate: %fat: %protein at baseline and after 3 months were 51:27:15 and 41:33:18 in men and 54:27:16 and 42:37:19 in women, respectively. VAT and SAT significantly decreased during the 3 months (P for time < 0.001 for both). Decrease in carbohydrate intake (g/day) and %carbohydrate were correlated with decrease (%) in VAT. The correlations were significant in men (Spearman correlation coefficient r = 0.469 for carbohydrate intake (g) and r = 0.402 for %carbohydrate) but not in women (r = 0.269 and 0.278, respectively). The correlations in men remained significant in multiple regression analysis adjusted for age and changes in energy intake. CONCLUSIONS In men, decrease in carbohydrate intake was significantly correlated with VAT loss during a 3-month M-LCD, independently of reduction in energy intake.
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Affiliation(s)
- Tae Sasakabe
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan.
| | - Hajime Haimoto
- Department of Internal Medicine, Haimoto Clinic, 1-80 Yayoi-cho, Kasugai, Aichi 486-0838, Japan
| | - Hiroyuki Umegaki
- Department of Geriatrics, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
| | - Kenji Wakai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
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Mokuno J, Hishida A, Morita E, Sasakabe T, Hattori Y, Suma S, Okada R, Kawai S, Naito M, Wakai K. ATP-binding cassette transporter A1 (ABCA1) R219K (G1051A, rs2230806) polymorphism and serum high-density lipoprotein cholesterol levels in a large Japanese population: cross-sectional data from the Daiko Study. Endocr J 2015; 62:543-9. [PMID: 25877294 DOI: 10.1507/endocrj.ej14-0577] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Among polymorphisms in ATP-binding cassette transporter A1 (ABCA1) gene, the available evidence demonstrates that the ABCA1 R219K polymorphism (G1051A, rs2230806) K allele is associated with a higher high-density lipoprotein cholesterol (HDL- C) level and may play a protective role against coronary artery disease (CAD) risk in Asians and Caucasians. The findings from many underpowered studies from Asian countries (n=71-597), however, still remain inconsistent. The objective of this study was to overcome the limitations of previous studies in Asia and provide solid epidemiologic evidence. Subjects were participants of a cohort study, who visited the Daiko Medical Center in Nagoya, Japan. The cohort study belongs to the Japan Multi-Institutional Collaborative Cohort Study (J-MICC Study). In the Daiko Study, 5,133 participants (1,458 men and 3,675 women) aged 35-69 years enrolled from 2008 through 2010 were eligible for the analyses. The ABCA1 polymorphism was genotyped by the polymerase chain reaction with confronting two-pair primers (PCR-CTPP) method. Among all the subjects, the genotype frequencies were 23.9% (n=1,225) for RR, 49.3% (n=2,532) for RK, and 26.8% (n=1,376) for KK, which was in Hardy-Weinberg's equilibrium (P =0.36). Background characteristics did not significantly differ among the genotypes including alcohol and tobacco use. The mean ± SD of HDL-C concentration was higher in men and women with RK or KK genotype than those with RR, although the difference between these genotypes was not statistically significant in both sexes (P =0.31 in men and 0.26 in women by ANOVA). In the multiple linear regression analysis to estimate the independent effects of the R219K polymorphism on HDL-C level, however, the number of K allele was significantly correlated with an increased level of HDL-C (trend P=0.033). Those with the KK genotype showed a significantly higher HDL-C concentration compared with those with the RR genotype by a mean of 1.18 mg/dL. The R219K polymorphism of ABCA1 independently associated with serum level of HDL-C in a large Japanese population.
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Affiliation(s)
- Junichiro Mokuno
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya 466-8550, Japan
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Sugimoto Y, Wakai K, Nakagawa H, Suma S, Sasakabe T, Sakamoto T, Takashima N, Suzuki S, Ogawa S, Ohnaka K, Kuriyama N, Arisawa K, Mikami H, Kubo M, Hosono S, Hamajima N, Tanaka H. Associations between polymorphisms of interleukin-6 and related cytokine genes and serum liver damage markers: a cross-sectional study in the Japan Multi-Institutional Collaborative Cohort (J-MICC) Study. Gene 2014; 557:158-62. [PMID: 25523094 DOI: 10.1016/j.gene.2014.12.025] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2014] [Revised: 11/27/2014] [Accepted: 12/12/2014] [Indexed: 01/20/2023]
Abstract
Cytokines, including interleukin-6 (IL-6), play an important role in the liver. The aim of this study was to investigate associations between common polymorphisms in potential functional promoters of cytokine genes and liver damage markers among enrollees of a large Japanese cohort study. Subjects included 3257 Japanese individuals (1608 men and 1649 women, aged 35-69 years). Six single nucleotide polymorphisms (SNPs) in the promoter regions of five cytokine genes, IL1B (T-31C), IL6 (C-634G), IL8 (T-251A), IL10 (T-819C), tumor necrosis factor-A (TNFA) (T-1031C), and TNFA (C-857T), were genotyped by polymerase chain reaction. Information regarding alcohol intake, smoking habits, height, and weight was collected by a self-administered questionnaire. Serum aspartate aminotransferase (AST) and alanine aminotransferase (ALT) were measured during a routine health check-up. Of the six SNPs genotyped, an IL6 polymorphism (rs1800796, C-634G) was most strongly associated with a liver damage marker, AST. Mean serum AST was significantly different among the three genotypes (mean ± SD, 22.7 ± 7.3 IU/L for CC, 22.8 ± 7.7 IU/L for CG, and 24.3 ± 8.6 IU/L for GG, p=0.011 by analysis of variance). The differences remained significant after adjustment for potential confounders by general linear models. The variations in mean serum AST and ALT levels were marked especially among men. Thus, the functional polymorphism IL6 C-634G may affect serum AST and ALT levels, possibly through different IL-6 production.
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Affiliation(s)
- Yuka Sugimoto
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kenji Wakai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan.
| | - Hiroko Nakagawa
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Shino Suma
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tae Sasakabe
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tatsuhiko Sakamoto
- Chikushi Office for Health, Human Services and Environmental Issues, Fukuoka Prefectural Government, Onojo, Japan
| | - Naoyuki Takashima
- Department of Health Science, Shiga University of Medical Science, Ohtsu, Japan
| | - Sadao Suzuki
- Department of Public Health, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Shin Ogawa
- Department of International Island and Community Medicine, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Keizo Ohnaka
- Department of Geriatric Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Nagato Kuriyama
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kokichi Arisawa
- Department of Preventive Medicine, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan
| | - Haruo Mikami
- Division of Cancer Registry, Prevention and Epidemiology, Chiba Cancer Center, Chiba, Japan
| | - Michiaki Kubo
- Core for Genomic Medicine, Center for Integrative Medical Sciences, RIKEN, Yokohama, Japan
| | - Satoyo Hosono
- Division of Epidemiology and Prevention, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Nobuyuki Hamajima
- Department of Healthcare Administration, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hideo Tanaka
- Division of Epidemiology and Prevention, Aichi Cancer Center Research Institute, Nagoya, Japan
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Hishida A, Wakai K, Naito M, Suma S, Sasakabe T, Hamajima N, Hosono S, Horita M, Turin TC, Suzuki S, Kairupan TS, Mikami H, Ohnaka K, Watanabe I, Uemura H, Kubo M, Tanaka H. Polymorphisms of genes involved in lipid metabolism and risk of chronic kidney disease in Japanese - cross-sectional data from the J-MICC study. Lipids Health Dis 2014; 13:162. [PMID: 25311932 PMCID: PMC4210508 DOI: 10.1186/1476-511x-13-162] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Accepted: 10/07/2014] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Chronic kidney disease (CKD) is known to be one of the causes of cardiovascular disease and end-stage renal disease. Among the several treatable risk factors of CKD, that of dyslipidemia is relatively controversial. To clarify the association of polymorphisms in genes involved in lipid metabolism with the risk of CKD in the Japanese population, we used cross-sectional data from the Japan Multi-Institutional Collaborative Cohort (J-MICC) Study. METHODS A total of 3,268 men and women, aged 35-69 years, were selected from J-MICC Study participants for inclusion in this study. Twenty-eight candidate single nucleotide polymorphisms (SNPs) were selected in 17 genes associated with the risk of lipid metabolism disorders, and genotyping of the subjects was conducted using the multiplex PCR-based invader assay. The prevalence of CKD was determined for stages 3-5 (defined as estimated glomerular filtration rate <60 ml/min/1.73 m2). RESULTS Logistic regression analysis revealed that SNPs APOA5 T - 1131C (rs662799), APOA5 T1259C (rs2266788), TOMM40 A/G (rs157580), and CETP TaqIB (rs708272) were significantly associated with CKD risk in those individuals genotyped, with age- and sex-adjusted odds ratios (ORs) per minor allele (and 95% confidence intervals (CIs)) of OR 1.22 (95% CI: 1.06-1.39), 1.19 (1.03-1.37), 1.27 (1.12-1.45), and 0.81 (0.71-0.92), respectively. Analysis of the gene-environment interaction revealed that body mass index (BMI) was a significant effect modifier for APOA5 T - 1131C (rs662799) and a marginally significant effect modifier for APOA5 T/C (rs2266788), with the interaction between BMI ≥30 and individuals with at least one minor allele of each genotype of OR 10.43 (95% CI: 1.29-84.19) and 3.36 (0.87-13.01), respectively. CONCLUSIONS Four polymorphisms in APOA5, TOMM40, and CETP were shown to be significantly associated with CKD risk, and a significant interaction between the two APOA5 SNPs and BMI on CKD risk was also demonstrated. This suggests the future possibility of personalized risk estimation for this life-limiting disease.
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Affiliation(s)
- Asahi Hishida
- />Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, 466-8550 Japan
| | - Kenji Wakai
- />Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, 466-8550 Japan
| | - Mariko Naito
- />Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, 466-8550 Japan
| | - Shino Suma
- />Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, 466-8550 Japan
| | - Tae Sasakabe
- />Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, 466-8550 Japan
| | - Nobuyuki Hamajima
- />Department of Healthcare Administration, Nagoya University Graduate School of Medicine, Nagoya, 466-8550 Japan
| | - Satoyo Hosono
- />Division of Epidemiology and Prevention, Aichi Cancer Center Research Institute, Nagoya, 464-8681 Japan
| | - Mikako Horita
- />Department of Preventive Medicine, Faculty of Medicine, Saga University, Saga, 849-8501 Japan
| | - Tanvir Chowdhury Turin
- />Department of Health Science, Shiga University of Medical Science, Otsu, 520-2192 Japan
- />Department of Family Medicine, University of Calgary, Calgary, AB T2N 1N4 Canada
| | - Sadao Suzuki
- />Department of Public Health, Nagoya City University Graduate School of Medical Sciences, Nagoya, 467-8601 Japan
| | - Tara Sefanya Kairupan
- />Department of International Island and Community Medicine, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, 890-8544 Japan
- />Department of Community Medicine, Faculty of Medicine, Sam Ratulangi University, Manado, 95115 Indonesia
| | - Haruo Mikami
- />Division of Epidemiology, Chiba Cancer Center Research Institute, Chiba, 260-8717 Japan
| | - Keizo Ohnaka
- />Department of Geriatric Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, 812-8582 Japan
| | - Isao Watanabe
- />Department of Social Medicine and Cultural Sciences, Kyoto Prefectural University of Medicine, Kyoto, 602-8566 Japan
| | - Hirokazu Uemura
- />Department of Preventive Medicine, Institute of Health Biosciences, University of Tokushima Graduate School, Tokushima, 770-8503 Japan
| | - Michiaki Kubo
- />Core for Genomic Medicine, Center for Integrative Medical Sciences, RIKEN, Yokohama, 230-0045 Japan
| | - Hideo Tanaka
- />Division of Epidemiology and Prevention, Aichi Cancer Center Research Institute, Nagoya, 464-8681 Japan
| | - for the J-MICC Study Group
- />Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, 466-8550 Japan
- />Department of Healthcare Administration, Nagoya University Graduate School of Medicine, Nagoya, 466-8550 Japan
- />Division of Epidemiology and Prevention, Aichi Cancer Center Research Institute, Nagoya, 464-8681 Japan
- />Department of Preventive Medicine, Faculty of Medicine, Saga University, Saga, 849-8501 Japan
- />Department of Health Science, Shiga University of Medical Science, Otsu, 520-2192 Japan
- />Department of Family Medicine, University of Calgary, Calgary, AB T2N 1N4 Canada
- />Department of Public Health, Nagoya City University Graduate School of Medical Sciences, Nagoya, 467-8601 Japan
- />Department of International Island and Community Medicine, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, 890-8544 Japan
- />Department of Community Medicine, Faculty of Medicine, Sam Ratulangi University, Manado, 95115 Indonesia
- />Division of Epidemiology, Chiba Cancer Center Research Institute, Chiba, 260-8717 Japan
- />Department of Geriatric Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, 812-8582 Japan
- />Department of Social Medicine and Cultural Sciences, Kyoto Prefectural University of Medicine, Kyoto, 602-8566 Japan
- />Department of Preventive Medicine, Institute of Health Biosciences, University of Tokushima Graduate School, Tokushima, 770-8503 Japan
- />Core for Genomic Medicine, Center for Integrative Medical Sciences, RIKEN, Yokohama, 230-0045 Japan
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Haimoto H, Sasakabe T, Kawamura T, Umegaki H, Komeda M, Wakai K. Three-graded stratification of carbohydrate restriction by level of baseline hemoglobin A1c for type 2 diabetes patients with a moderate low-carbohydrate diet. Nutr Metab (Lond) 2014; 11:33. [PMID: 25114711 PMCID: PMC4128548 DOI: 10.1186/1743-7075-11-33] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2014] [Accepted: 07/21/2014] [Indexed: 01/09/2023] Open
Abstract
Background A moderate low-carbohydrate diet has been receiving attention in the dietary management of type 2 diabetes (T2DM). A fundamental issue has still to be addressed; how much carbohydrate delta-reduction (Δcarbohydrate) from baseline would be necessary to achieve a certain decrease in hemoglobin A1c (HbA1c) levels. Objective We investigated the effects of three-graded stratification of carbohydrate restriction by patient baseline HbA1c levels on glycemic control and effects of Δcarbohydrate on decreases in HbA1c levels (ΔHbA1c) in each group. Research design and methods We treated 122 outpatients with T2DM by three-graded carbohydrate restriction according to baseline HbA1c levels (≤ 7.4% for Group 1, 7.5%-8.9% for Group 2 and ≥ 9.0% for Group 3) and assessed their HbA1c levels, doses of anti-diabetic drugs and macronutrient intakes over 6 months. Results At baseline, the mean HbA1c level and carbohydrate intake were 6.9 ± 0.4% and 252 ± 59 g/day for Group 1 (n = 55), 8.1 ± 0.4% and 282 ± 85 g/day for Group 2 (n = 41) and 10.6 ± 1.4% and 309 ± 88 g/day for Group 3 (n = 26). Following three-graded carbohydrate restriction for 6 months significantly decreased mean carbohydrate intake (g/day) and HbA1c levels for all patients, from 274 ± 78 to 168 ± 52 g and from 8.1 ± 1.6 to 7.1 ± 0.9% (n = 122, P < 0.001 for both) and anti-diabetic drugs could be tapered. ΔHbA1c and Δcarbohydrate were -0.4 ± 0.4% and -74 ± 69 g/day for Group 1, -0.6 ± 0.9% and -117 ± 78 g/day for Group 2 and -3.1 ± 1.4% and -156 ± 74 g/day for Group 3. Linear regression analysis showed that the greater the carbohydrate intake, the greater the HbA1c levels at baseline (P = 0.001). Also, the greater the reduction in carbohydrate intake (g/day), the greater the decrease in HbA1c levels (P < 0.001), but ΔHbA1c was not significantly influenced by changes in other macronutrient intakes (g/day). Conclusions Three-graded stratification of carbohydrate restriction according to baseline HbA1c levels may provide T2DM patients with optimal objectives for carbohydrate restriction and prevent restriction from being unnecessarily strict.
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Affiliation(s)
- Hajime Haimoto
- Department of Internal Medicine, Haimoto Clinic, 1-80 Yayoi, Kasugai, Aichi 486-0838, Japan
| | - Tae Sasakabe
- Department of Clinical Nutrition, Haimoto Clinic, 1-80 Yayoi-cho, Kasugai, Aichi 486-0838, Japan
| | - Takahiko Kawamura
- Department of Diabetes and Endocrine Internal Medicine, Chubu Rosai Hospital, 10-6-1, Komei-cho, Minato-ku, Nagoya, Aichi 455-8530, Japan
| | - Hiroyuki Umegaki
- Department of Geriatrics, Nagoya University Graduate School of Medicine, 65 Tsuruma-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
| | - Masashi Komeda
- Department of Cardiac Surgery, Kansai Heart Center, Nara 1-3-3 Ukyo Nara-city, 631-0805, Japan
| | - Kenji Wakai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsuruma-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
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Haimoto H, Sasakabe T, Umegaki H, Wakai K. Reduction in urinary albumin excretion with a moderate low-carbohydrate diet in patients with type 2 diabetes: a 12-month intervention. Diabetes Metab Syndr Obes 2012; 5:283-91. [PMID: 22924004 PMCID: PMC3422909 DOI: 10.2147/dmso.s34306] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
INTRODUCTION Urinary albumin excretion (UAE) is a marker of the early phase of diabetic nephropathy. Although a low-carbohydrate diet (LCD) has been shown to effectively improve glycemic control in patients with type 2 diabetes (T2DM), its effects on UAE remain unknown. PATIENTS AND METHODS A total of 124 patients (mean age ± standard deviation, 61.6 ± 9.2 years) with T2DM were instructed to consume a moderate LCD (1734 ± 416 kcal/d; % carbohydrate:fat:protein = 38:37:19) for 12 months. We measured the levels of UAE, hemoglobin A(1c), fasting plasma glucose, fasting serum insulin (IRI), and the serum lipid profiles in the patients and recorded their dosages of antidiabetic drugs during this 12-month period. RESULTS Of the 124 patients, 68 were normoalbuminuric, 50 were microalbuminuric, and six were macroalbuminuric at baseline. The patients had relatively good compliance with the moderate LCD diet. After 12 months, the mean levels of hemoglobin A(1c), fasting plasma glucose, IRI, homeostasis model assessment-estimated insulin resistance, and the body mass index of all participants significantly decreased (P = 0.003 for IRI and P < 0.001 for the other parameters). Among the microalbuminuric patients (n = 50), remission to normoalbuminuria was frequently achieved (52%) and the geometric mean UAE significantly decreased by 53% (95% confidence interval: 43, 62) over 12 months (P < 0.001). After patients taking an angiotensin 2 receptor blocker were excluded, the UAE significantly decreased by 41% (n = 26, 95% confidence interval: 25, 54; P < 0.001). Moreover, the reduction in UAE was significantly and positively correlated with a reduction in homeostasis model assessment-estimated insulin resistance levels (r(s) = 0.308; P = 0.031). CONCLUSION A moderate LCD (38% carbohydrate diet) achieved a remarkable reduction in UAE over 12 months in microalbuminuric patients with T2DM.
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Affiliation(s)
- Hajime Haimoto
- Department of Internal Medicine, Haimoto Clinic, Kasugai
- Correspondence: Hajime Haimoto, Haimoto Clinic, 1-80 Yayoi, Kasugai, Aichi 486-0838, Japan, Tel +81 568 858 226, Fax +81 568 858 315, Email
| | - Tae Sasakabe
- Department of Clinical Nutrition, Haimoto Clinic, Kasugai
| | - Hiroyuki Umegaki
- Department of Geriatrics, Nagoya University Graduate School of Medicine, Nagoya
| | - Kenji Wakai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Sasakabe T, Haimoto H, Umegaki H, Wakai K. Effects of a moderate low-carbohydrate diet on preferential abdominal fat loss and cardiovascular risk factors in patients with type 2 diabetes. Diabetes Metab Syndr Obes 2011; 4:167-74. [PMID: 21779148 PMCID: PMC3138148 DOI: 10.2147/dmso.s19635] [Citation(s) in RCA: 18] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2011] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Reports have shown that visceral adipose tissue (VAT) is more closely linked to cardiovascular risk factors (CRFs) than subcutaneous adipose tissue (SAT). We aimed to elucidate preferential abdominal fat loss and the correlations between abdominal fat reductions and changes in CRFs achieved with a moderate low-carbohydrate diet (LCD) in patients with type 2 diabetes (T2DM). PATIENTS AND METHODS Fifty-two outpatients (28 men and 24 women, mean age ± SD: 60.0 ± 10.5 years) with hemoglobin A(1c) (HbA(lc)) levels ≥ 6.5% were on an LCD for 6 months. Over a 6-month period, we measured their abdominal fat distribution (using CT) and assessed CRFs, including body mass index (BMI), HbA(1c), fasting blood glucose (FBG), serum insulin, high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), and triglyceride levels. RESULTS The patients showed good compliance with the LCD (1812 ± 375 kcal/day, % carbohydrate:fat:protein = 35:40:19 for men; 1706 ± 323 kcal/day, % carbohydrate:fat:protein = 41:36:21 for women). Significant decreases (P = 0.05) in BMI and HbA(1c) levels were observed, along with an increase in HDL-C (P = 0.021) in men and a decrease in LDL-C (P = 0.001) in women. VAT (-21.6 cm(2), P < 0.001 in men; -19.6 cm(2), P < 0.001 in women) and SAT (-13.5 cm(2), P = 0.004 in men; -19.1 cm(2), P = 0.003 in women) significantly decreased. The loss of VAT (%ΔVAT) was greater than that of SAT (%ΔSAT) in women (P = 0.022). A similar but not significant predominance of VAT loss was detected in men (P = 0.111). In women, the %ΔSAT significantly correlated with changes in FBG (ΔFBG) (r = 0.417) and HDL-C (ΔHDL) (r = -0.720), as was %ΔVAT with changes in triglyceride (ΔTG) (r = 0.591). CONCLUSION Six months of a moderate LCD resulted in preferential VAT loss only in women, with significant correlations between %ΔSAT and both ΔHDL and ΔFBG, as well as between %ΔVAT and ΔTG. Our results suggest that an LCD has the potential to reduce abdominal fat in patients with T2DM and deterioration of serum lipid profiles.
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Affiliation(s)
- Tae Sasakabe
- Department of Clinical Nutrition, Haimoto Clinic, Yayoi, Kasugai, Aichi, Japan
- Correspondence: Tae Sasakabe, Haimoto Clinic, 1-80 Yayoi, Kasugai, Aichi 486-0838, Japan, Tel +81 568 85 8226, Fax +81 568 85 8315, Email
| | - Hajime Haimoto
- Department of Internal Medicine, Haimoto Clinic, Yayoi, Kasugai, Aichi, Japan
| | - Hiroyuki Umegaki
- Department of Geriatrics, Nagoya University Graduate School of Medicine, Tsurumai, Showa, Nagoya, Aichi, Japan
| | - Kenji Wakai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Tsurumai, Showa, Nagoya, Aichi, Japan
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Haimoto H, Sasakabe T, Umegaki H, Wakai K. Acute metabolic responses to a high-carbohydrate meal in outpatients with type 2 diabetes treated with a low-carbohydrate diet: a crossover meal tolerance study. Nutr Metab (Lond) 2009; 6:52. [PMID: 20040075 PMCID: PMC2811105 DOI: 10.1186/1743-7075-6-52] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [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: 08/14/2009] [Accepted: 12/29/2009] [Indexed: 01/24/2023] Open
Abstract
Background A low-carbohydrate diet (LCD) achieves good glycemic control in type 2 diabetes (T2DM) compared with a high-carbohydrate diet. With respect to energy metabolism, acute metabolic responses to high-carbohydrate meals (HCMs) have not been determined in LCD patients with T2DM. Subjects and methods We enrolled 31 subjects with T2DM (mean age: 62 yrs, mean hemoglobin A1c level: 6.9%), of whom 13 were on a strict LCD (26% carbohydrate diet), and 18 a moderate one (44% carbohydrate diet). Two isocaloric meals were administered to all subjects in a randomized crossover design. The carbohydrate:protein:fat ratios of HCMs and low-carbohydrate meals (LCMs) were 59:20:21 and 7:20:73, respectively. Serum β-hydroxybutyrate, acetoacetate, free fatty acids (FFAs), triglyceride and insulin, and plasma glucose concentrations were measured for 120 minutes after the intake of each meal. Results HCMs rapidly decreased postprandial β-hydroxybutyrate, acetoacetate and FFA concentrations within 2 hours in all patients in combination with rapid increases in serum insulin and plasma glucose, while LCMs increased or did not change β-hydroxybutyrate, acetoacetate and FFAs (P < 0.001 for all). HCMs did not change postprandial triglyceride concentrations over 2 hours, while LCMs gradually increased them (P < 0.001). HCMs sharply and rapidly decreased postprandial β-hydroxybutyrate and acetoacetate concentrations in strict LCD subjects over 2 hours, but only slightly decreased them in moderate LCD subjects (P < 0.001, difference between strict and moderate LCD subjects). The parameter Δketone bodies (level at 120 minutes - level at baseline) was significantly correlated with the insulinogenic index (Spearman's r = 0.503 for β-hydroxybutyrate and 0.509 for acetoacetate), but not with total insulin secretory capacity. Moreover, HCMs slightly decreased postprandial triglyceride levels in strict LCD subjects but somewhat increased them in the moderate LCD subjects (P = 0.002). The parameter Δtriglyceride was significantly correlated with background dietary %carbohydrate (Spearman's r = 0.484). Conclusion HCMs rapidly decreased postprandial ketone body concentrations in T2DM patients treated with a LCD. The decreases were more remarkable in strict than in moderate LCD subjects. HCMs slightly decreased postprandial triglyceride levels in strict LCD subjects. The parameter Δketone bodies was significantly correlated with the insulinogenic index, as was Δtriglyceride with background dietary %carbohydrate.
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Affiliation(s)
- Hajime Haimoto
- Department of Internal Medicine, Haimoto Clinic, 1-80 Yayoi, Kasugai, Aichi 486-0838, Japan
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Haimoto H, Sasakabe T, Wakai K, Umegaki H. Effects of a low-carbohydrate diet on glycemic control in outpatients with severe type 2 diabetes. Nutr Metab (Lond) 2009; 6:21. [PMID: 19419563 PMCID: PMC2690585 DOI: 10.1186/1743-7075-6-21] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [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: 12/21/2008] [Accepted: 05/06/2009] [Indexed: 11/30/2022] Open
Abstract
We previously demonstrated that a loosely restricted 45%-carbohydrate diet led to greater reduction in hemoglobin A1c (HbA1c) compared to high-carbohydrate diets in outpatients with mild type 2 diabetes (mean HbA1c level: 7.4%) over 2 years. To determine whether good glycemic control can be achieved with a 30%-carbohydrate diet in severe type 2 diabetes, 33 outpatients (15 males, 18 females, mean age: 59 yrs) with HbA1c levels of 9.0% or above were instructed to follow a low-carbohydrate diet (1852 kcal; %CHO:fat:protein = 30:44:20) for 6 months in an outpatient clinic and were followed to assess their HbA1c levels, body mass index and doses of antidiabetic drugs. HbA1c levels decreased sharply from a baseline of 10.9 ± 1.6% to 7.8 ± 1.5% at 3 months and to 7.4 ± 1.4% at 6 months. Body mass index decreased slightly from baseline (23.8 ± 3.3) to 6 months (23.5 ± 3.4). Only two patients dropped out. No adverse effects were observed except for mild constipation. The number of patients on sulfonylureas decreased from 7 at baseline to 2 at 6 months. No patient required inpatient care or insulin therapy. In summary, the 30%-carbohydrate diet over 6 months led to a remarkable reduction in HbA1c levels, even among outpatients with severe type 2 diabetes, without any insulin therapy, hospital care or increase in sulfonylureas. The effectiveness of the diet may be comparable to that of insulin therapy.
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Affiliation(s)
- Hajime Haimoto
- Department of Internal Medicine, Haimoto Clinic, 1-80 Yayoi, Kasugai, Aichi 486-0838, Japan.
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