文献一覧: Yoshitaka Murakami (著者)

4 0 0 0 OA Association Between Body Mass Index and All-Cause Death in Japanese Population: Pooled Individual Participant Data Analysis of 13 Cohort Studies

著者: Atsushi Hozawa Takumi Hirata Hiroshi Yatsuya Yoshitaka Murakami Shinichi Kuriyama Ichiro Tsuji Daisuke Sugiyama Atsushi Satoh Sachiko Tanaka-Mizuno Katsuyuki Miura Hirotsugu Ueshima Tomonori Okamura
出版者: Japan Epidemiological Association
雑誌: Journal of Epidemiology (ISSN:09175040)
巻号頁・発行日: pp.JE20180124, (Released:2018-11-03)
参考文献数: 20
被引用文献数: 17

Background: We sought to investigate the optimal values of BMI for the lowest risk of all-cause death and whether the optimal BMI differs according to smoking status in large-scale pooled analysis of 13 Japanese cohorts.Methods: Data from 179,987 participants of 13 well-qualified cohort studies conducted throughout Japan were used for our analysis. A cohort-stratified Cox proportional hazard model was used. P values for interactions were calculated based on the cross product of BMI and age, sex, or smoking status.Results: In the entire study population, all-cause mortality risk was lowest when the BMI was 22.0–24.9 kg/m2. This was also the case for selected healthy participants (never smoked, baseline total cholesterol level ≥4.1 mmol/L; the first 5 years of follow-up data were excluded). No effect modification of age, sex, or smoking status was observed. Regardless of their BMI, never smokers always had a lower all-cause mortality risk than did current smokers even with an ideal BMI in terms of mortality risk.Conclusion: A BMI of 22–24.9 kg/m2 correlated with the lowest risk of mortality, regardless of whether all participants or selected healthy participants were analyzed. The fact that smoking was more strongly associated with mortality than obesity emphasizes the urgency for effective anti-smoking programs.

2019-09-16 17:42:38
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3 0 0 0 OA Japan Atherosclerosis Society (JAS) Guidelines for Prevention of Atherosclerotic Cardiovascular Diseases 2017

著者: Makoto Kinoshita Koutaro Yokote Hidenori Arai Mami Iida Yasushi Ishigaki Shun Ishibashi Seiji Umemoto Genshi Egusa Hirotoshi Ohmura Tomonori Okamura Shinji Kihara Shinji Koba Isao Saito Tetsuo Shoji Hiroyuki Daida Kazuhisa Tsukamoto Juno Deguchi Seitaro Dohi Kazushige Dobashi Hirotoshi Hamaguchi Masumi Hara Takafumi Hiro Sadatoshi Biro Yoshio Fujioka Chizuko Maruyama Yoshihiro Miyamoto Yoshitaka Murakami Masayuki Yokode Hiroshi Yoshida Hiromi Rakugi Akihiko Wakatsuki Shizuya Yamashita Committee for Epidemiology and Clinical Management of Atherosclerosis
出版者: Japan Atherosclerosis Society
雑誌: Journal of Atherosclerosis and Thrombosis (ISSN:13403478)
巻号頁・発行日: vol.25, no.9, pp.846-984, 2018-09-01 (Released:2018-09-01)
参考文献数: 999
被引用文献数: 347 534

2022-05-24 04:48:43
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2 0 0 0 OA Effects of Long-term Hybrid Assistive Limb Use on Gait in Patients with Amyotrophic Lateral Sclerosis

著者: Harumi Morioka Kiyoko Murata Tatsuki Sugisawa Mari Shibukawa Junya Ebina Masahiro Sawada Sayori Hanashiro Junpei Nagasawa Masaru Yanagihashi Takehisa Hirayama Masayuki Uchi Kiyokazu Kawabe Satoru Ebihara Yoshitaka Murakami Takashi Nakajima Osamu Kano
出版者: The Japanese Society of Internal Medicine
雑誌: Internal Medicine (ISSN:09182918)
巻号頁・発行日: vol.61, no.10, pp.1479-1484, 2022-05-15 (Released:2022-05-15)
参考文献数: 28
被引用文献数: 4

Objective To assess the long-term effects of hybrid assistive limb (HAL) treatment on gait in patients with amyotrophic lateral sclerosis (ALS). Methods Three courses of treatment with HAL were administered to three women with ALS. Each course had a four- to five-week duration, during which the treatment was performed nine times, with a rest period of at least two months between each course. Gait ability (2-minutes-walk and 10-m-walk tests), ALS Functional Rating Scale-Revised, and respiratory function tests were performed before and after each treatment course. Patients Patients diagnosed with ALS, according to the updated Awaji criteria, by board-certified neurologists in the Department of Neurology and Department of Rehabilitation Medicine, Toho University Omori Faculty of Medicine between January and December 2019 were recruited. Results The average time from the start to the end of the 3 courses was 319.7±33.7 days. A multiple regression analysis was performed for the 2-minutes-walk and 10-m-walk tests, using the baseline value, each participant's ID, and time point as covariates. Changes after each course were considered outcomes. Following the 3 treatment courses, the 2-minutes walk distance improved by 16.61 m (95% confidence interval, -9.33-42.54) compared with the baseline value, but this improvement was not statistically significant (p=0.21). However, cadence significantly improved by 1.30 steps (95% confidence interval, 0.17-2.42; p=0.02). Conclusion Long-term, repetitive HAL treatments may help patients with ALS maintain their gait.

2022-07-14 01:25:29
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2 0 0 0 OA Estimation of 10-Year Risk of Death from Coronary Heart Disease, Stroke, and Cardiovascular Disease in a Pooled Analysis of Japanese Cohorts: EPOCH-JAPAN

著者: Yuanying Li Hiroshi Yatsuya Sachiko Tanaka Hiroyasu Iso Akira Okayama Ichiro Tsuji Kiyomi Sakata Yoshihiro Miyamoto Hirotsugu Ueshima Katsuyuki Miura Yoshitaka Murakami Tomonori Okamura
出版者: Japan Atherosclerosis Society
雑誌: Journal of Atherosclerosis and Thrombosis (ISSN:13403478)
巻号頁・発行日: vol.28, no.8, pp.816-825, 2021-08-01 (Released:2021-08-01)
参考文献数: 44
被引用文献数: 2 9

Aims: We aimed to develop and validate risk prediction models to estimate the absolute 10-year risk of death from coronary heart disease (CHD), stroke, and cardiovascular disease (CVD). Methods: We evaluated a total of 44,869 individuals aged 40–79 years from eight Japanese prospective cohorts to derive coefficients of risk equations using cohort-stratified Cox proportional hazard regression models. Discrimination (C-index) of the equation was examined in each cohort and summarised using random-effect meta-analyses. Calibration of the equation was assessed using Hosmer-Lemeshow chi-squared statistic. Results: Within a median follow-up of 12.7 years, we observed 765 deaths due to CVD (276 CHDs and 489 strokes). After backward selection, age, sex, current smoking, systolic blood pressure (SBP), proteinuria, prevalent diabetes mellitus, the ratio of total cholesterol to high-density lipoprotein cholesterol (TC/HDLC), interaction terms of age by SBP, and age by current smoking were retained as predictors for CHD. Sex was excluded in the stroke equation. We did not consider TC/HDLC as a risk factor for the stroke and CVD equations. The pooled C-indices for CHD, stroke, and CVD were 0.83, 0.80, and 0.81, respectively, and the corresponding p-values of the Hosmer-Lemeshow tests were 0.18, 0.003, and 0.25, respectively. Conclusions: Risk equations in the present study can adequately estimate the absolute 10-year risk of death from CHD, stroke, and CVD. Future work will evaluate the system as an education and risk communication tool for primary prevention of CHD and stroke.

2021-08-11 08:29:21
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2 0 0 0 OA Association Between Body Mass Index and All-Cause Death in Japanese Population: Pooled Individual Participant Data Analysis of 13 Cohort Studies

著者: Atsushi Hozawa Takumi Hirata Hiroshi Yatsuya Yoshitaka Murakami Shinichi Kuriyama Ichiro Tsuji Daisuke Sugiyama Atsushi Satoh Sachiko Tanaka-Mizuno Katsuyuki Miura Hirotsugu Ueshima Tomonori Okamura
出版者: Japan Epidemiological Association
雑誌: Journal of Epidemiology (ISSN:09175040)
巻号頁・発行日: vol.29, no.12, pp.457-463, 2019-12-05 (Released:2019-12-05)
参考文献数: 20
被引用文献数: 7 17

2021-04-04 19:47:59
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2 0 0 0 OA Relationship Between Socioeconomic Status and the Prevalence of Underweight, Overweight or Obesity in a General Japanese Population: NIPPON DATA2010

著者: Tomiyo Nakamura Yasuyuki Nakamura Shigeyuki Saitoh Tomonori Okamura Masahiko Yanagita Katsushi Yoshita Yoshikuni Kita Yoshitaka Murakami Hiroshi Yokomichi Nobuo Nishi Nagako Okuda Aya Kadota Takayoshi Ohkubo Hirotsugu Ueshima Akira Okayama Katsuyuki Miura
出版者: Japan Epidemiological Association
雑誌: Journal of Epidemiology (ISSN:09175040)
巻号頁・発行日: vol.28, no.Supplement_III, pp.S10-S16, 2018-03-05 (Released:2018-03-05)
参考文献数: 20
被引用文献数: 23

Background: Socioeconomic status (SES) imbalances in developed and developing countries may result in individuals being overweight and obese. However, few studies have investigated this issue in Japan. We herein examined the relationship between SES and being underweight, overweight or obese according to sex and age groups (20–64 or ≥65 years) in Japan.Methods: In 2010, we established a cohort of participants in the National Health and Nutrition Survey of Japan. We divided 2,491 participants (1,081 men and 1,410 women) according to the WHO definitions of underweight, overweight or obesity and performed multinomial logistic analyses using BMI <18.5 kg/m2 (underweight), BMI 25.0–29.9 kg/m2 (overweight), and BMI ≥30.0 kg/m2 (obese) versus BMI 18.5–24.9 kg/m2 (normal) as the outcome, with SES groups as the main explanatory variables.Results: In adult men, a lower education level relative to a higher education level was inversely associated with obesity after adjustments for other SESs (odds ratio [OR] 0.41; 95% confidence interval [CI], 0.18–0.96). However, in adult women, lower education level was positively associated with being overweight and obese (OR 1.67; 95% CI, 1.07–2.49 for overweight and OR 2.66; 95% CI, 1.01–7.01 for obese). In adult women, a lower household income was positively associated with being overweight and obese (obese: OR 4.84; 95% CI, 1.36–17.18 for those with a household income <2 million JPY relative to those with ≥6 million JPY).Conclusions: In adult women, a lower education level and lower household income were positively associated with being overweight or obese. In contrast, in adult men, a lower education level was inversely associated with obesity. Gender and age differences in SESs affect the prevalence of being overweight or obese.

2018-12-19 15:34:43
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1 0 0 0 OA Familial Hypercholesterolemia in Patients with Acute Coronary Syndrome: Genetic Insights from EXPLORE-J

著者: Mariko Harada-Shiba Junya Ako Atsushi Hirayama Masato Nakamura Atsushi Nohara Kayoko Sato Yoshitaka Murakami Ryusuke Koshida Asuka Ozaki Hidenori Arai
出版者: Japan Atherosclerosis Society
雑誌: Journal of Atherosclerosis and Thrombosis (ISSN:13403478)
巻号頁・発行日: vol.29, no.8, pp.1201-1212, 2022-08-01 (Released:2022-08-01)
参考文献数: 32
被引用文献数: 3 7

Aim: Genetic testing can provide a definitive diagnosis of familial hypercholesterolemia (FH). However, accessibility of genetic testing may be limited in certain countries where it is not considered “standard of care,” including Japan. In addition, mutations responsible for FH cannot be identified in approximately 30% of patients. Methods: EXPLORE-J is a multicenter, prospective, observational study of patients presenting with acute coronary syndrome (ACS). The genetic data were analyzed and adjudicated as pathogenic, indeterminate, or nondetectable pathogenic variant.Results: Of 1,944 patients, 431 underwent genetic screening. Overall, most patients had nonpathogenic variants of LDLR, LDLRAP1, or PCSK9 (n=396, 91.9%). Of the 25 (5.8%) patients with pathogenic variants, variants of the LDLR gene and the PCSK9 gene were seen in 10 and 15 patients, respectively. Indeterminate variants were observed in 10 (2.3%) patients. Of the 431 patients, eight (1.9%) met the criteria for a diagnosis of FH using the Japanese Atherosclerosis Society (JAS) 2017 guidelines. When genetic data were incorporated, 33 (7.7%) patients met the JAS guidelines. No patients with FH pathogenic variants satisfied the JAS clinical criteria for a diagnosis of FH.Conclusions: The results revealed a higher prevalence of genetic mutations of FH among Japanese patients with ACS and a low sensitivity of the FH diagnostic criteria of the JAS 2017 guidelines. These findings highlight the difficulties of FH diagnosis in patients with ACS in the acute phase and suggest the importance of genetic testing and family history.

2023-09-02 14:40:02
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1 0 0 0 OA Association Between Social Participation and Disability-free Life Expectancy in Japanese Older People: The Ohsaki Cohort 2006 Study

著者: Sanae Matsuyama Yoshitaka Murakami Yukai Lu Toshimasa Sone Yumi Sugawara Ichiro Tsuji
出版者: Japan Epidemiological Association
雑誌: Journal of Epidemiology (ISSN:09175040)
巻号頁・発行日: vol.32, no.10, pp.456-463, 2022-10-05 (Released:2022-10-05)
参考文献数: 37
被引用文献数: 1 3

Background: Although social participation has been reported to be associated with significantly lower risks of mortality and disability, to our knowledge, no study has estimated its impact on disability-free life expectancy (DFLE). Therefore, this study aimed to investigate the association between social participation and DFLE in community-dwelling older people.Methods: We analyzed 11-year follow-up data from a cohort study of 11,982 Japanese older adults (age ≥65 years) in 2006. We collected information on the number of social participations using a questionnaire. Using this information, we categorized the participants into four groups. DFLE was defined as the average number of years a person could expect to live without disability. The multistate life table method using a Markov model was employed for calculating DFLE.Results: The results revealed that DFLE according to the number of social participations was 17.8 years (95% confidence interval [CI], 17.3–18.2) for no activities, 20.9 (95% CI, 20.4–21.5) for one activity, 21.5 (95% CI, 20.9–22.0) for two activities, and 22.7 (95% CI, 22.1–23.2) for three activities in men, and 21.8 (95% CI, 21.5–22.2), 25.1 (95% CI, 24.6–25.6), 25.3 (95% CI, 24.7–25.9), and 26.7 years (95% CI, 26.1–27.4), respectively, in women. This difference in DFLE did not change after the participants were stratified for smoking, body mass index, physical activity, and depression.Conclusion: Social participation is associated with longer DFLE among Japanese older people; therefore, encouraging social participation at the population level could increase life-years lived in good health.

2023-05-19 12:28:03
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1 0 0 0 OA Contradictory Responses to the COVID-19 Pandemic in Amyotrophic Lateral Sclerosis Patients and Their Families and Caregivers in Japan

著者: Masaru Yanagihashi Tatsuki Sugisawa Masaaki Fuchimoto Yuuichi Saotome Keiko Onozawa Yukinori Matsumoto Kota Bokuda Junya Ebina Mari Shibukawa Takehisa Hirayama Yoshitaka Murakami Naohiro Washizawa Satoru Ebihara Osamu Kano
出版者: The Japanese Society of Internal Medicine
雑誌: Internal Medicine (ISSN:09182918)
巻号頁・発行日: vol.60, no.10, pp.1519-1524, 2021-05-15 (Released:2021-05-15)
参考文献数: 14
被引用文献数: 4

Objective The coronavirus disease 2019 (COVID-19) pandemic has resulted in a shortage of medical resources, including ventilators, personal protective equipment, medical staff, and hospital beds. We investigated the impact of COVID-19 in amyotrophic lateral sclerosis (ALS) patients, their families, caregivers, and medical experts. Methods We conducted a nationwide ALS webinar about COVID-19 in May 2020 and sent a questionnaire to those enrolled. Results A total of 135 participants (31 ALS patients; 23 families and caregivers of ALS patients; 81 medical experts) responded to this cross-sectional self-report questionnaire. The results showed that tracheostomy and invasive ventilation (TIV) was used in 22.6% of ALS patients, whereas 77.4% of ALS patients were not under TIV. Among non-TIV patients (n=24), 79.2% did not want TIV in the future. However, 47.4% of non-TIV patients not wanting a tracheostomy in advanced stages replied that they would want an emergency tracheostomy if they developed COVID-19-related pneumonia. These results suggest that ALS patients may be receptive to emergency treatments for reasons other than ALS. In addition, approximately half of the ALS patients agreed with the policy of not ventilating the elderly or ALS patients in case of a ventilator shortage. Furthermore, compared with medical experts, few ALS patients reported that the chance for ALS patients to obtain work was higher due to the increasing availability of remote work. Conclusions This survey indicates that the COVID-19 pandemic might be associated with increased distress about access to care and work, inducing contradictory responses and potential hopelessness among ALS patients.

2022-07-14 01:29:50
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1 0 0 0 OA Single Antiplatelet Therapy With Prasugrel vs. Dual Antiplatelet Therapy in Japanese Percutaneous Coronary Intervention Patients With High Bleeding Risk

著者: Masato Nakamura Kazushige Kadota Koichi Nakao Yoshihisa Nakagawa Junya Shite Hiroyoshi Yokoi Ken Kozuma Kengo Tanabe Takashi Akasaka Toshiro Shinke Takafumi Ueno Atsushi Hirayama Shiro Uemura Atsushi Harada Takeshi Kuroda Atsushi Takita Raisuke Iijima Yoshitaka Murakami Shigeru Saito
出版者: The Japanese Circulation Society
雑誌: Circulation Journal (ISSN:13469843)
巻号頁・発行日: pp.CJ-20-1058, (Released:2021-02-11)
参考文献数: 20
被引用文献数: 9

Background:Outcomes with prasugrel single antiplatelet therapy (SAPT) vs. dual antiplatelet therapy (DAPT) in Japanese percutaneous coronary intervention (PCI) patients with high bleeding risk (HBR) are currently unknown.Methods and Results:Data from 1,173 SAPT and 2,535 DAPT patients from the PENDULUM mono and PENDULUM registry studies (respective median DAPT durations: 108 vs. 312 days) were compared. The adjusted cumulative incidence of Bleeding Academic Research Consortium (BARC) 2, 3, or 5 bleeding from 1 to 12 months after PCI (primary endpoint) was 2.8% (95% confidence interval [CI], 1.9–4.2) and 4.1% (95% CI, 3.3–5.1), respectively (hazard ratio [HR], 0.69; 95% CI, 0.45–1.06; P=0.090). The adjusted cumulative incidences of BARC 2, 3, or 5 bleeding from 0 to 12 months after PCI (secondary endpoint) were 3.8% (95% CI, 2.7–5.3) and 5.6% (95% CI, 4.7–6.7), respectively (HR, 0.68; 95% CI, 0.47–0.98; P=0.039). There was no significant difference in major adverse cardiac and cerebrovascular events (MACCE) from 1 to 12 months after PCI (HR, 0.93; 95% CI, 0.63–1.37; P=0.696) and at 12 months after PCI (HR, 0.85; 95% CI, 0.61–1.19; P=0.348) between the groups.Conclusions:Prasugrel SAPT may reduce BARC 2, 3, or 5 bleeding, without increasing MACCE, in Japanese patients with HBR.

2021-02-19 08:56:31
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1 0 0 0 OA Estimation of 10-Year Risk of Death from Coronary Heart Disease, Stroke, and Cardiovascular Disease in a Pooled Analysis of Japanese Cohorts: EPOCH-JAPAN

著者: Yuanying Li Hiroshi Yatsuya Sachiko Tanaka Hiroyasu Iso Akira Okayama Ichiro Tsuji Kiyomi Sakata Yoshihiro Miyamoto Hirotsugu Ueshima Katsuyuki Miura Yoshitaka Murakami Tomonori Okamura EPOCH-JAPAN Research Group
出版者: Japan Atherosclerosis Society
雑誌: Journal of Atherosclerosis and Thrombosis (ISSN:13403478)
巻号頁・発行日: pp.58958, (Released:2020-10-10)
参考文献数: 44
被引用文献数: 9

2020-10-17 01:04:42
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1 0 0 0 OA Relationship between calcium intake and impaired activities of daily living in a Japanese population: NIPPON DATA90

著者: Mana Kogure Naho Tsuchiya Akira Narita Takumi Hirata Naoki Nakaya Tomohiro Nakamura Atsushi Hozawa Takehito Hayakawa Nagako Okuda Naoko Miyagawa Aya Kadota Takayoshi Ohkubo Yoshitaka Murakami Kiyomi Sakata Katsuyuki Miura Akira Okayama Tomonori Okamura Hirotsugu Ueshima
出版者: Japan Epidemiological Association
雑誌: Journal of Epidemiology (ISSN:09175040)
巻号頁・発行日: pp.JE20190234, (Released:2020-02-08)
参考文献数: 20
被引用文献数: 4

Background: Major reasons for long-term care insurance certification in Japan are stroke, dementia and fracture. These diseases are reported to be associated with calcium intake. This study examined the association between calcium intake and impaired activities of daily living (ADL) using the data from NIPPON DATA90, consisting of representative sample of the Japanese population.Methods: A population-based nested case control study was performed. A baseline survey was conducted in 1990, followed by ADL surveys of individuals ≥65 years old in 2000. Individuals with impaired ADL and selected age- and sex-matched controls were then identified. We obtained 132 pairs. Calcium intake was energy-adjusted using the residual method. The association between calcium intake and impaired ADL was examined using conditional logistic regression models. To assess the accuracy of the estimates, we conducted bootstrap analyses.Results: The adjusted odds ratios (ORs) for impaired ADL compared with the group with a calcium intake of <476 mg/day were 0.72 (95% confidence interval, 95% CI: 0.37-1.40) for the 476-606 mg/day group and 0.44 (0.21-0.94) for the ≥607 mg/day group in 2000 (P for linear trend = 0.03). After the bootstrap analyses, the inverse relationship unchanged (median OR per 100-mg rise in calcium intake: 0.87 [1,000 resamplings], 95% CI: 0.76-0.97).Conclusions: After bootstrap analyses, calcium intake was inversely associated with impaired ADL, 10 years after the baseline survey.

2020-03-30 01:54:28
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