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Uchida K, Sugimoto T, Tange C, Nishita Y, Shimokata H, Saji N, Kuroda Y, Matsumoto N, Kishino Y, Ono R, Akisue T, Otsuka R, Sakurai T. Association between Reduction of Muscle Mass and Faster Declines in Global Cognition among Older People: A 4-Year Prospective Cohort Study. J Nutr Health Aging 2023; 27:932-939. [PMID: 37997712 DOI: 10.1007/s12603-023-2007-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Accepted: 08/17/2023] [Indexed: 11/25/2023]
Abstract
OBJECTIVES A few studies reported that both decrease and increase in body mass index (BMI) were associated with the development of dementia in later life. However, it is unclear what changes in body composition are associated with cognitive decline. This study investigated the longitudinal influences of changes in body composition on cognitive function among community-dwelling adults. DESIGN, SETTING AND PARTICIPANTS This longitudinal study included older adults aged ≥60 years without cognitive impairment who participated in National Institute for Longevity Sciences - Longitudinal Study of Aging. MEASUREMENTS Cognitive function was assessed using the MMSE. Body composition was measured by a dual-energy X-ray absorptiometry system. Then, BMI, fat mass index (FMI), fat-free mass index (FFMI), and muscle mass index (MMI) were calculated. The changes in body composition over 6 years (second wave to fifth wave) were calculated, and three groups were created: decreased group, decrease of >5%; stable group, change within 5%, and increased group, increase of >5%. In statistical analysis, a linear mixed model was applied by sex to investigate the influences of body composition changes on cognitive function over 4 years (fifth wave to seventh wave). RESULTS This study analyzed 515 participants (mean age, 67.05 years; 53.4% men). Men with decreased group in FFMI and MMI exhibited faster declines in MMSE scores than those with stable group (β [95% CI]: FFMI, -0.293 [-0.719 to -0.020]; MMI, -0.472 [-0.884 to -0.059]). In women, there was no significant association between body composition changes and cognitive functions. CONCLUSIONS Decrease in fat-free mass and muscle mass is associated with faster cognitive declines in men. These results suggest the importance of continuous monitoring of muscle mass to prevent cognitive decline in later life.
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Affiliation(s)
- K Uchida
- Takashi Sakurai, 7-430 Morioka, Obu, Aichi 474-8511, Japan, TEL: +81-562-46-2311, FAX: +81-562-46-8394, E-mail:
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Kinoshita K, Otsuka R, Takada M, Tsukamoto-Yasui M, Nishita Y, Tange C, Tomida M, Jinzu H, Shimokata H, Kuzuya M, Imaizumi A, Arai H. Low Amino Acid Score of Breakfast is Associated with the Incidence of Cognitive Impairment in Older Japanese Adults: A Community-Based Longitudinal Study. J Prev Alzheimers Dis 2022; 9:151-157. [PMID: 35098986 DOI: 10.14283/jpad.2021.25] [Citation(s) in RCA: 1] [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] [Indexed: 11/11/2022]
Abstract
BACKGROUND The protein digestibility-corrected amino acid score (PDCAAS) represents the degree of utilizable dietary protein, namely the protein quality. The PDCAAS of a diet is required to be evaluated on a meal-by-meal basis, as food digestion and absorption occur with each meal intake. Although a positive association between protein intake and cognitive function has been reported, no study has investigated the association between PDCAAS of a diet and cognitive function. OBJECTIVES To investigate the relationship between PDCAAS of a diet and cognitive impairment in older adults. DESIGN Longitudinal epidemiological study. SETTING Community-based setting. PARTICIPANTS We analyzed 541 community-dwellers who participated in both baseline and follow-up survey. They were 60-83 years of age without cognitive impairment at baseline. MEASUREMENTS Cognitive impairment was defined as a Mini-Mental State Examination (MMSE) score ≤27. Individual PDCAASs were calculated for each of three regular meals from the 3-day dietary records at baseline. Participants were classified into two groups according to the sex-specific tertiles (T1-T3) of the PDCAAS for each meal (i.e., T1 as the low score group and T2-T3 as the medium and high score group). The dependent variable was cognitive impairment observed after 4 years, and the explanatory variables were the PDCAAS groups for each meal (the medium and high group as the reference) and covariates (sex, age, body mass index, education, depressive symptoms, medical history, protein intake at each meal, and the MMSE score at baseline). Multivariable logistic regression analysis was performed to evaluate the low PDCAAS group for cognitive impairment after 4 years. RESULTS A significant association was observed only between a low PDCAAS of breakfast and the incidence of cognitive impairment (the adjusted odds ratios [95% confidence intervals] of low PDCAAS for cognitive impairment for breakfast, lunch, and dinner were 1.58 [1.00-2.50], 0.85 [0.54-1.34], and 1.08 [0.71-1.65], respectively). CONCLUSION A lower PDCAAS of breakfast, i.e., a diet with poor quality of protein, was associated with the incidence of cognitive impairment in older adults of the community.
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Affiliation(s)
- K Kinoshita
- Rei Otsuka, Section of NILS-LSA, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, 7-430 Morioka, Obu, Aichi 474-8511, Japan, E-mail: ; Tel: +81-562-46-2311; Fax: +81-562-48-2373
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Sezaki A, Imai T, Miyamoto K, Kawase F, Shirai Y, Abe C, Sanada M, Inden A, Kato T, Sugihara N, Shimokata H. Association between the Mediterranean Diet Score and Healthy Life Expectancy: A Global Comparative Study. J Nutr Health Aging 2022; 26:621-627. [PMID: 35718872 DOI: 10.1007/s12603-022-1811-y] [Citation(s) in RCA: 1] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
OBJECTIVES Extending healthy life expectancy (HALE), defined as the average number of years that a person can expect to live in "full health" by taking into account years lived in less than full health due to disease and/or injury, is a common topic worldwide. This study aims to clarify the relationships between the Mediterranean diet score (MDS) and life expectancy (LE) and HALE globally using publicly available international data. SETTING Analyses were conducted on 130 countries with populations of 1 million or more for which all data were available. Individual countries were scored from 0 to 9 to indicate adherence to the Mediterranean diet according to the MDS scoring method. The supply of vegetables, legumes, fruits and nuts, cereals, fish, and olive oil per 1,000 kcal per country was calculated based on the Food and Agriculture Organization Corporate Statistical Database, with a score of 1 for above the median and 0 for below. The same method was used to calculate scores of presumed detrimental components (meat and dairy), with consumption below the median given a value of 1, and consumption above the median given a value of 0. For ethanol, a score of 1 was given for 10g to 50 g of consumption. We investigated the cross-sectional associations between the MDS and LE and HALE at birth in 2009, and the longitudinal associations between the MDS in 2009 and LE and HALE between 2009 and 2019, controlling for covariates at baseline using linear mixed models. RESULTS In the cross-sectional analysis, the MDS was significantly positively associated with LE (β=0.906 [95% confidence interval, 0.065-1.747], p=0.037) and HALE (β=0.875 [0.207-1.544], p=0.011) after controlling for all covariates. The longitudinal analysis also revealed significantly positive associations between the MDS and LE (0.621 [0.063-1.178], p=0.030) and HALE (0.694 [0.227-1.161], p=0.004) after controlling for all covariates. CONCLUSION The present study, based on an analysis using 10 years of international data, showed that countries with a higher MDS showed a positive association with HALE.
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Affiliation(s)
- A Sezaki
- Ayako Sezaki, Nagoya University of Arts and Sciences, Nagoya Gakugei Daigaku, Japan,
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Kinoshita K, Otsuka R, Tange C, Nishita Y, Tomida M, Ando F, Shimokata H, Arai H. Relationship between Serum Fatty Acids and Components of Physical Frailty in Community-Dwelling Japanese Older Adults. J Frailty Aging 2021; 10:237-240. [PMID: 34105707 DOI: 10.14283/jfa.2020.67] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Polyunsaturated fatty acids help maintain insulin sensitivity, mitochondrial function, and anti-inflammation. It is well known that deterioration in these areas can cause frailty. However, little is known about the differences in serum polyunsaturated fatty acid levels among frailty components. We investigated the cross-sectional relationship between frailty and serum fatty acids in 1,033 community-dwelling older adults aged 60-88 years. Polyunsaturated fatty acid concentrations were measured from fasting blood samples. The modified phenotype criteria defined frailty. Polyunsaturated fatty acid levels were compared among each component using general linear modeling after controlling for sex, age, body mass index, smoking status, household income, and medical history. Lower polyunsaturated fatty acid levels were associated with the modified frailty criteria, including shrinking and weakness (p < 0.05). Our findings suggest that serum polyunsaturated fatty acid levels differ depending on the frailty status of older adults.
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Affiliation(s)
- K Kinoshita
- Rei Otsuka, Section of NILS-LSA, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, 7-430 Morioka, Obu, Aichi 474-8511, Japan, Tel: +81-562-46-2311; FAX: +81-562-46-2373; E-mail:
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Otsuka R, Zhang S, Tange C, Nishita Y, Tomida M, Kinoshita K, Kato Y, Ando F, Shimokata H, Arai H. Association of Dietary Intake with the Transitions of Frailty among Japanese Community-Dwelling Older Adults. J Frailty Aging 2021; 11:26-32. [PMID: 35122087 DOI: 10.14283/jfa.2021.42] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Background: Frailty is a dynamic process, with frequent transitions between frailty, prefrailty, and robust statuses over time. The effect of dietary intake on frailty transitions is unknown. Objective: To examine the association between dietary intake and frailty transitions. Design: Survey-based retrospective analysis of the National Institute for Longevity Sciences-Longitudinal Study of Aging data. Setting: Areas neighboring the National Center for Geriatrics and Gerontology in Aichi Prefecture, Japan. Participants: We included 469 prefrail community dwellers aged 60–87 years who participated both in the baseline (2008–2010) and 2-year follow-up (2010–2012) surveys of the National Institute for Longevity Sciences-Longitudinal Study of Aging. Measurements: Transitions of frailty were categorized by changes in status from baseline to follow-up: “deterioration (prefrail to frail),” “persistence (persistent prefrail),” and “reversal (prefrail to robust).” Estimated dietary (nutrients and food) intakes assessed by 3-day dietary records in each frailty transition were analyzed with a multivariate-adjusted general linear model after adjusting for sex, age, education, family income, smoking, and chronic disease. Results: At the 2-year follow-up, 28%, 7%, and 65% of participants had robust, frail, and pre-frail status, respectively. Among 13 food groups, only milk and dairy product intake was positively associated with frailty reversal even after adjusting for all frailty criteria at baseline. Despite insignificant differences in the estimated mean intakes, the baseline intake of saturated fatty acids, potassium, and vitamin B1 tended to be the highest in the reversal group. The estimated mean (standard error) for milk and dairy product intake (g/day) was 79.1 (28.6), 129.3 (19.9), and 161.7 (21.7) for the deterioration, persistence, and reversal groups, respectively (P=0.0036, P-trend=0.0019). Conclusions: Daily consumption of dairy products may contribute to frailty reversal and frailty prevention among older community dwellers who consume small amounts of dairy products. Other food groups showed no association with frailty status transitions.
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Affiliation(s)
- R Otsuka
- Rei Otsuka, Department of Epidemiology of Aging, Research Institute, National Center for Geriatrics and Gerontology, 7-430 Morioka-cho, Obu, Aichi 474-8511, Japan, E-mail: , Tel: +81-562-46-2311
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Kinoshita K, Otsuka R, Takada M, Tsukamoto-Yasui M, Nishita Y, Tange C, Tomida M, Shimokata H, Kuzuya M, Imaizumi A, Arai H. The Association between Dietary Amino Acid Intake and Cognitive Decline 8 Years Later in Japanese Community-Dwelling Older Adults. J Nutr Health Aging 2021; 25:165-171. [PMID: 33491030 DOI: 10.1007/s12603-020-1470-9] [Citation(s) in RCA: 3] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
OBJECTIVES Previous studies have reported a relationship between low protein intake and cognitive decline and have suggested that this association may be related to specific amino acid intake. However, the effects of amino acid intake on the maintenance of cognitive function have yet to be clarified. We examined the longitudinal association between dietary amino acid intake and cognitive function in community-dwelling older adults. DESIGN Longitudinal epidemiological study. SETTING Community-based setting. PARTICIPANTS This study comprised 427 study participants aged 60-82 years with no cognitive decline, defined as a Mini-Mental State Examination (MMSE) score of >27 at baseline, who also participated in a follow-up. The average and standard deviation of the follow-up period was 8.2 ± 0.3 years. MEASUREMENTS Dietary intake was assessed using three-day dietary records at baseline. Participants were classified into quartiles (Q1-Q4) based on the intake of 19 amino acids for males and females. Next, we classified participants into Q1 and Q2-Q4 groups. Cognitive function was assessed using the MMSE both at baseline and at follow-up. Multivariable logistic regression models were used to estimate odds ratios (ORs) and 95% confidence intervals (CIs) for the associations between the Q1 group and cognitive decline (MMSE ≤27), using the Q2-Q4 group as a reference group. Covariates were age, sex, body mass index, years of education, severity of depressive symptoms, history of lifestyle diseases (hypertension, dyslipidemia, diabetes mellitus, stroke, and ischemic heart disease), energy intake (kcal/d), protein intake (g/d), and MMSE score at baseline. RESULTS Cognitive decline was present in 133 (31.1%) participants. After adjustment for covariates, including total protein intake, the ORs (95% CIs) for cognitive decline were 2.40 (1.21-4.75) for lysine, 2.05 (1.02-4.09) for phenylalanine, 2.18 (1.09-4.34) for threonine, and 2.10 (1.06-4.15) for alanine. CONCLUSION The results suggest that lysine, phenylalanine, threonine, and alanine intake is important for the maintenance of cognitive function in older people, independent of total protein intake.
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Affiliation(s)
- K Kinoshita
- Rei Otsuka, Section of NILS-LSA, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, 7-430 Morioka, Obu, Aichi 474-8511, Japan, Tel: +81-562-46-2311; FAX: +81-562-46-2373; E-mail:
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Tsukasaki K, Matsui Y, Arai H, Harada A, Tomida M, Takemura M, Otsuka R, Ando F, Shimokata H. Association of Muscle Strength and Gait Speed with Cross-Sectional Muscle Area Determined by Mid-Thigh Computed Tomography - A Comparison with Skeletal Muscle Mass Measured by Dual-Energy X-Ray Absorptiometry. J Frailty Aging 2020; 9:82-89. [PMID: 32259181 DOI: 10.14283/jfa.2020.16] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND Muscle mass is often mentioned not to reflect muscle strength. For muscle mass assessment skeletal muscle index (SMI) is often used. We have reported that dual-energy X-ray absorptiometry (DXA)-derived SMI does not change with age in women, whereas the cross-sectional muscle area (CSMA) derived from computed tomography (CT) does. OBJECTIVES The present study aimed to compare CT and DXA for the assessment of muscle tissue. DESIGN AND SETTING Cross-sectional study in the local residents. PARTICIPANTS A total of 1818 subjects (age 40-89 years) randomly selected from community dwellers underwent CT examination of the right mid-thigh to measure the cross-sectional muscle area (CSMA). Skeletal muscle mass (SMM) was measured by DXA. The subjects performed physical function tests such as grip strength, knee extension strength, leg extension strength, and gait speed. The correlation between CT-derived CSMA and DXA-derived SMM along with their association with physical function was examined. RESULTS After controlling for related factors, the partial correlation coefficient of muscle cross-sectional area (CSA) with physical function was larger than that of DXA-derived SMM for gait speed in men (p=0.002) and knee extension strength in women (p=0.03). The partial correlation coefficient of quadriceps (Qc) CSA with physical function was larger than that of DXA-derived SMM for leg extension power in both sexes (p=0.01), gait speed in men (p<0.001), and knee extension strength in women (p<0.001). CONCLUSION Mid-thigh CT-derived CSMA, especially Qc CSA, showed significant associations with grip strength, knee extension strength, and leg extension power, which were equal to or stronger than those of DXA-derived SMM in community-dwelling middle-aged and older Japanese people. The mid-thigh CSMA may be a predictor of mobility disability, and is considered to be useful in the diagnosis of sarcopenia.
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Affiliation(s)
- K Tsukasaki
- Yasumoto Matsui, Center for Frailty and Locomotive syndrome, National Center for Geriatrics and Gerontology, 7-430. Morioka-cho, Obu, Aichi, Japan, e-mail address: , telephone 81-522-046-2311, fax numbers:81-562-44-8518
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Satake S, Shimokata H, Senda K, Kondo I, Arai H, Toba K. Predictive Ability of Seven Domains of the Kihon Checklist for Incident Dependency and Mortality. J Frailty Aging 2019; 8:85-87. [PMID: 30997921 DOI: 10.14283/jfa.2019.3] [Citation(s) in RCA: 4] [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] [Indexed: 11/11/2022]
Abstract
The Kihon Checklist (KCL) is a structured questionnaire consisting of 7 domains to assess seniors' function in daily living. The aim of this study was to examine which domains of the KCL can predict incident dependency and mortality. The municipality sent a KCL questionnaire to independent seniors in Higashi-ura Town and collected the answers of the 5542 seniors who provided complete answers. Their incident dependency and mortality were followed-up for 2.5 years. A Cox proportional hazard model indicated that meeting any of the criteria in instrumental activities of daily living, physical, nutrition, and mood domains significantly predicted the risk of dependency, whereas meeting any of the criteria in physical, nutrition and socialization domains significantly predicted the risk of mortality. Category assessment by the KCL could be useful to predict incident dependency and all-cause mortality.
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Affiliation(s)
- S Satake
- Shosuke Satake, Section of Frailty Prevention, Department of Frailty Research, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, 7-430, Morioka-cho, Obu, Aichi 474-8511, Japan, Phone: +81-562-46-2311, FAX: +81-562-44-8518, e-mail address:
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Otsuka R, Tange C, Tomida M, Nishita Y, Kato Y, Yuki A, Ando F, Shimokata H, Arai H. Dietary factors associated with the development of physical frailty in community-dwelling older adults. J Nutr Health Aging 2019; 23:89-95. [PMID: 30569075 DOI: 10.1007/s12603-018-1124-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
OBJECTIVES Nutrition plays an important role in the development of frailty, and the present study examined the association between energy, macronutrient, and food intake and the development of physical frailty. DESIGN Prospective cohort study. SETTING The National Institute for Longevity Sciences - Longitudinal Study of Aging (NILS-LSA), a community-based study. PARTICIPANTS Participants included 166 men and 117 women aged 65-86 years without frailty components at baseline who participated in both the sixth (2008-2010) and seventh (2010-2012) waves of the NILS-LSA. MEASUREMENTS Physical frailty was assessed using the modified criteria established by the Cardiovascular Health Study (2001). All participants were classified as "robust (number of frailty components: 0)," "prefrail (1-2)," or "frail (3-5)." Energy, macronutrient, and food intake was calculated based on 3-day dietary records during the sixth wave. Associations between dietary intake per day and the development of frailty 2 years later (from robust at the sixth wave to prefrail/frail at the seventh wave) were examined using multiple logistic regression analysis after adjusting for sex, baseline age, and other covariables. RESULTS Among the participants included, 36% were classified as prefrail/frail 2 years later. Higher energy [1 standard deviation (SD), odds ratio (95% confidence interval): 362 kcal, 0.68 (0.49-0.94)], protein [16 g, 0.72 (0.53-0.97)], and fat [15 g, 0.69 (0.52-0.92)] intake was negatively associated with frailty development. Higher meat [38 g, 0.68 (0.51-0.92)] and dairy [114 g, 0.73 (0.55-0.96)] intake was negatively associated with frailty development. Higher energy intake was negatively associated with the development of weakness (low grip strength) and low activity, while higher protein intake was negatively associated with the development of low activity. CONCLUSION Increased consumption of meat and dairy products may provide sufficient protein and fat necessary for achieving higher energy intake, thereby effectively preventing physical frailty among older Japanese individuals.
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Affiliation(s)
- R Otsuka
- Rei Otsuka, Section of NILS-LSA, National Center for Geriatrics and Gerontology, 7-430, Morioka-cho, Obu, Aichi 474-8511, Japan, , Tel: +81-562-46-2311, Fax: +81-562-44-6593
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Imai T, Miyamoto K, Sezaki A, Kawase F, Shirai Y, Abe C, Fukaya A, Kato T, Sanada M, Shimokata H. Traditional Japanese Diet Score - Association with Obesity, Incidence of Ischemic Heart Disease, and Healthy Life Expectancy in a Global Comparative Study. J Nutr Health Aging 2019; 23:717-724. [PMID: 31560029 DOI: 10.1007/s12603-019-1219-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
OBJECTIVES We created a Traditional Japanese Diet Score (TJDS), and to clarify the relationship between TJDS and obesity, ischemic heart disease (IHD), and healthy life expectancy (HALE). DESIGN Ecological study. SETTING Food (g/day/capita) and energy (kcal/day/capita) supply was determined using the Food and Agriculture Organization of the United Nations Statistics Division database. The sum of characteristic traditional Japanese foods (beneficial food components in the Japanese diet: rice, fish, soybeans, vegetables, eggs, and seaweeds; food components rarely used in the Japanese diet: wheat, milk, and red meat) was divided as tertiles (beneficial food components: -1, 0, 1; rarely used food components: 1, 0, -1). Obesity rate was determined using the World Health Organization database. Incidence of IHD, HALE and smoking rate were determined using the Global Burden of Diseases, Injuries, and Risk Factors Study 2015 database. Gross domestic product per capita, percentage of population > 65 years old, and health expenditure were determined using the World Bank database. Education years were obtained from the United Nations Educational, Scientific and Cultural Organization Institute for Statistics. Associations between TJDS and obesity, IHD and HALE were examined in 132 countries with a population of 1 million or greater using a general linear model controlled for co-variables. RESULTS TJDS was distributed from -6 to 7. TJDS was inversely correlated to obesity (β±SE; -0.70±0.19, p<0.001), IHD (-19.4±4.3, p<0.001), and positively correlated to HALE (0.40±0.14, p<0.01). CONCLUSIONS TJDS is a good indicator of a healthy diet, and applies to preventing obesity, IHD and extending HALE.
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Affiliation(s)
- T Imai
- Tomoko Imai, Doshisha Joshi Daigaku, Food science and Nutrition, Teramachi Nishiiru, Imadegawa-dori, Kamigyo-ku, Kyoto, Kyoto 602-0893, Japan, 81-75-251-4266, mobile: 81-90-6594-8534, Fax: 81-75-251-4266,
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Koda M, Kitamura I, Okura T, Otsuka R, Ando F, Shimokata H. Men who were thin during early adulthood exhibited greater weight gain-associated visceral fat accumulation in a study of middle-aged Japanese men. Obes Sci Pract 2018; 4:289-295. [PMID: 29951220 PMCID: PMC6009997 DOI: 10.1002/osp4.270] [Citation(s) in RCA: 2] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 03/27/2018] [Accepted: 04/04/2018] [Indexed: 12/05/2022] Open
Abstract
OBJECTIVE This study aimed to assess the relationship between weight gain from early adulthood and visceral fat accumulation. METHODS The participants were 549 men aged 42 to 64 years who were randomly selected from the local resident registry for the National Institute for Longevity Sciences' neighbourhood. They were asked to recall their weight at 18 years of age, and then, post-18 weight-change values were calculated for each participant (their current weight minus their weight at 18). The participants were divided according to their median body mass index (BMI) at 18 years of age (initial BMI) (<20.14 and ≥20.14 kg m-2). Visceral fat area (VFA) and subcutaneous fat area (SFA) were measured on computed tomography scans. RESULTS The participants with initial BMI of <20.14 kg m-2 exhibited greater post-18 weight changes than those with initial BMI of ≥20.14 kg m-2. The participants' post-18 weight-change values were negatively correlated with their initial BMI and positively correlated with both VFA and SFA. The slope of the regression line for the relationship between post-18 weight change and VFA was steeper in the participants with initial BMI of <20.14 kg m-2 (β = 4.36) than in those with initial BMI of ≥20.14 kg m-2 (β = 3.23). CONCLUSIONS Visceral fat accumulation is affected not only by an individual's post-18 weight gain but also by their initial BMI. Men who were thin in early adulthood experienced greater weight gain-associated VFA increases, but the same was not true for SFA.
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Affiliation(s)
- M. Koda
- College of Bioscience and BiotechnologyChubu UniversityKasugaiAichiJapan
- Section of National Institute for Longevity Sciences, Longitudinal Study of Aging (NILS‐LSA)National Center for Geriatrics and GerontologyAichiJapan
| | - I. Kitamura
- Section of National Institute for Longevity Sciences, Longitudinal Study of Aging (NILS‐LSA)National Center for Geriatrics and GerontologyAichiJapan
- Division of Liberal Arts and SciencesAichi Gakuin UniversityNisshinAichiJapan
| | - T. Okura
- Section of National Institute for Longevity Sciences, Longitudinal Study of Aging (NILS‐LSA)National Center for Geriatrics and GerontologyAichiJapan
- Faculty of Health and Sport SciencesUniversity of TsukubaTsukubaIbarakiJapan
| | - R. Otsuka
- Section of National Institute for Longevity Sciences, Longitudinal Study of Aging (NILS‐LSA)National Center for Geriatrics and GerontologyAichiJapan
| | - F. Ando
- Section of National Institute for Longevity Sciences, Longitudinal Study of Aging (NILS‐LSA)National Center for Geriatrics and GerontologyAichiJapan
- Faculty of Health and Medical SciencesAichi Shukutoku UniversityNagakuteAichiJapan
| | - H. Shimokata
- Section of National Institute for Longevity Sciences, Longitudinal Study of Aging (NILS‐LSA)National Center for Geriatrics and GerontologyAichiJapan
- Graduate School of Nutritional SciencesNagoya University of Arts and SciencesNisshinAichiJapan
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Otsuka R, Nishita Y, Tange C, Tomida M, Kato Y, Imai T, Ando F, Shimokata H. Age-Related 12-Year Changes in Dietary Diversity and Food Intakes among Community-Dwelling Japanese Aged 40 to 79 Years. J Nutr Health Aging 2018; 22:594-600. [PMID: 29717759 DOI: 10.1007/s12603-018-0999-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES This study describes trends in dietary diversity and food intake over 12 years according to age at first participation in the study. DESIGN Prospective cohort study. SETTING The National Institute for Longevity Sciences - Longitudinal Study of Aging, a community-based study. PARTICIPANTS Participants included 922 men and 879 women who participated in the first study-wave (age, 40-79 years) and also participated in at least one study-wave from the second to seventh study-wave. Study-waves were conducted biennially. MEASUREMENTS Dietary intake was calculated from 3-day dietary records with photographs. Dietary diversity was determined using the Quantitative Index for Dietary Diversity based on food intake. A mixed-effects model was used to estimate linear changes in dietary diversity and food intake over 12 years according to age at first study-wave. RESULTS Mean (standard deviation (SD)) follow-up time and number of study-wave visits were 9.5 (3.7) years and 5.4 (1.8), respectively. Mean (SD, range) dietary diversity score was 0.86 (0.06, 0.52-0.96) in men and 0.88 (0.04, 0.66-0.96) in women, respectively. Fixed effects for interactions of age and time with dietary diversity score were statistically significant (p<0.05). The slope of dietary diversity among men aged 40 to 55 years increased (40-year-old slope = 0.00093/year, p<0.01; 55-year-old slope = 0.00035/year, p=0.04), with a decreasing trend started at 65 years old, although this trend was not significant (65-year-old slope = -0.00003/year, p=0.88; 79-year-old slope = -0.00057/year, p=0.21). The slope of dietary diversity among women aged 40 to 44 years increased (40-year-old slope = 0.00053/year, p=0.02; 44-year-old slope = 0.00038/year, p=0.04), whereas the slope of dietary diversity among women aged 63 to 79 years decreased (63-year-old slope = -0.00033/year, p=0.03; 79-year-old slope = -0.00092/year, p<0.001). Fruit, milk and dairy intake decreased in men around their 60s; milk and dairy intake decreased in women around their 50s; and beans and fruit intake decreased in women from their 70s. CONCLUSION Twelve-year longitudinal data showed dietary diversity declined in women in their 60s. In terms of food intake, fruit, milk and dairy intake decreased in both sexes in their 50s and 60s; such declines would lower dietary diversity.
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Affiliation(s)
- R Otsuka
- Rei Otsuka, Section of NILS-LSA, National Center for Geriatrics and Gerontology, 7-430, Morioka-cho, Obu, Aichi 474-8511, Japan, , Tel: +81-562-46-2311, Fax: +81-562-44-6593
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Shimokata H, Ando F, Otsuka R. LONGITUDINAL ASSOCIATION BETWEEN SERUM ADIPONECTIN AND SARCOPENIA IN A COMMUNITY-LIVING POPULATION. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.4114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- H. Shimokata
- Graduate School of Nutritional Sciences, Nagoya University of Arts and Sciences, Nisshin-city, Japan,
- National Center for Geriatrics and Gerontology, Nisshin-city, Japan,
| | - F. Ando
- Aichi Shukutoku University, Nagakute-city, Japan
- National Center for Geriatrics and Gerontology, Nisshin-city, Japan,
| | - R. Otsuka
- National Center for Geriatrics and Gerontology, Nisshin-city, Japan,
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Otsuka-Ito R, Nishita-Kodaira Y, Tange C, Tomida M, Kato Y, Imai T, Ando F, Shimokata H. EFFECTS OF DIETARY DIVERSITY ON LONGITUDINAL CHANGES IN INFORMATION PROCESSING SPEED AT 40S TO 70S. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- R. Otsuka-Ito
- National Center for Geriatrics and Gerontology, Obu, Aichi, Japan,
| | | | - C. Tange
- National Center for Geriatrics and Gerontology, Obu, Aichi, Japan,
| | - M. Tomida
- National Center for Geriatrics and Gerontology, Obu, Aichi, Japan,
| | - Y. Kato
- Aichi Shukutoku University, Nagakute, Aichi, Japan,
- National Center for Geriatrics and Gerontology, Obu, Aichi, Japan,
| | - T. Imai
- National Center for Geriatrics and Gerontology, Obu, Aichi, Japan,
- Doshisha Women’s College of Liberal Arts, Kyoto, Japan,
| | - F. Ando
- Aichi Shukutoku University, Nagakute, Aichi, Japan,
- National Center for Geriatrics and Gerontology, Obu, Aichi, Japan,
| | - H. Shimokata
- Nagoya University of Arts and Sciences, Nisshin, Aichi, Japan
- National Center for Geriatrics and Gerontology, Obu, Aichi, Japan,
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Ando F, Kato Y, Otsuka R, Shimokata H. CAROTENOID AND ITS INTERACTION WITH SMOKING EFFECTS ON MUSCLE MASS DECLINE WITH AGING IN ELDERLY MEN. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.4117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- F. Ando
- Aichi Shukutoku University, Nagakute, Japan,
- National Center for Geriatrics and Gerontology, Obu, Japan,
| | - Y. Kato
- Aichi Shukutoku University, Nagakute, Japan,
- National Center for Geriatrics and Gerontology, Obu, Japan,
| | - R. Otsuka
- National Center for Geriatrics and Gerontology, Obu, Japan,
| | - H. Shimokata
- Graduate School of Nutritional Sciences, Nagoya University of Arts and Sciences, Nisshin, Japan
- National Center for Geriatrics and Gerontology, Obu, Japan,
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Nishita-Kodaira Y, Tange C, Tomida M, Otsuka R, Ando F, Shimokata H. EFFECTS OF APOE GENOTYPES ON COGNITIVE AGING IN THE MIDDLE-AGED AND ELDERLY: A15-YEAR FOLLOW-UP. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.2896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | - C. Tange
- National Center for Geriatrics and Gerontology, Obu, Aichi, Japan,
| | - M. Tomida
- National Center for Geriatrics and Gerontology, Obu, Aichi, Japan,
- Research Fellowship of the Japan Society for the Promotion of Science, Tokyo, Japan,
| | - R. Otsuka
- National Center for Geriatrics and Gerontology, Obu, Aichi, Japan,
| | - F. Ando
- Aichi Shukutoku University, Aichi, Japan,
- National Center for Geriatrics and Gerontology, Obu, Aichi, Japan,
| | - H. Shimokata
- Graduate School of Nutritional Sciences, Nagoya University of Arts and Sciences, Nisshin, Japan
- National Center for Geriatrics and Gerontology, Obu, Aichi, Japan,
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Otsuka R, Kato Y, Nishita Y, Tange C, Tomida M, Nakamoto M, Imai T, Ando F, Shimokata H. Age-related Changes in Energy Intake and Weight in Community-dwelling Middle-aged and Elderly Japanese. J Nutr Health Aging 2016; 20:383-90. [PMID: 26999237 DOI: 10.1007/s12603-016-0715-0] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVE This study attempts to describe trends in energy intake and weight change over 12 years according to age at first participation in the study. DESIGN Prospective cohort study. SETTING The National Institute for Longevity Sciences - Longitudinal Study of Aging (NILS-LSA), a community-based study. PARTICIPANTS Participants included 922 men and 879 women who participated in the first study-wave (age 40-79 years) and also participated in at least one study-wave from the second to seventh study-wave. Each study-wave was conducted biennially. For individuals, the entire follow-up period was 12 years. MEASUREMENTS Energy intake was calculated from 3-day dietary records with photographs. Weight and height were measured under a fasting state. To estimate linear changes in energy intake and weight over 12 years according to age at first study-wave, we used the mixed-effects model. RESULTS Mean (SD) follow-up time and number of study-wave visits were 9.5 (3.7) years and 5.4 (1.8) times, respectively. The fixed effect of the interaction of age and time in energy intake and weight was statistically or marginally statistically significant both in men (p<0.01) and in women (p<0.06). In men, when energy intake was estimated according to age, the rate of decrease in energy intake increased from -6.8 to -33.8 kcal/year for ages 40-79 years. In women, the rate of decrease in energy intake slightly increased in older age groups (-9.1 to -16.7 kcal/year for ages 40-79 years). Weight increased in males in their 40s (0.07 kg/year from age 40) and started to decline by age 53. In women, weight started to decline around age 47 (-0.04 kg/year). CONCLUSION Twelve-year longitudinal data showed energy intake declined both in men and women in their 40s, and the rate of decrease increased in older males. Weight started to decline in men in their mid-50s and women in their late 40s. Further studies that focus on energy intake and weight reduction are needed to prevent weight loss or underweight in an increasingly aging society.
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Affiliation(s)
- R Otsuka
- Rei Otsuka, Section of NILS-LSA, National Center for Geriatrics and Gerontology, 7-430, Morioka-cho, Obu, Aichi 474-8511, Japan; , Tel: +81-562-46-2311, Fax: +81-562-44-6593
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Ando F, Nishita Y, Tange C, Otsuka R, Shimokata H. Asymptomatic Cerebral White Matter Lesions Predict Future Cognitive Decline in Japanese Elderly. Int J Epidemiol 2015. [DOI: 10.1093/ije/dyv096.315] [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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Imai T, Otsuka R, Kato Y, Ando F, Shimokata H. A Longitudinal Study of Dietary Supplement Use in Community-living Middle Age and Elderly Japanese. Int J Epidemiol 2015. [DOI: 10.1093/ije/dyv096.282] [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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Otsuka R, Tange C, Nishita Y, Kato Y, Imai T, Ando F, Shimokata H. Serum docosahexaenoic and eicosapentaenoic acid and risk of cognitive decline over 10 years among elderly Japanese. Eur J Clin Nutr 2014; 68:503-9. [PMID: 24398640 PMCID: PMC3975810 DOI: 10.1038/ejcn.2013.264] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [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: 02/06/2013] [Revised: 10/29/2013] [Accepted: 11/06/2013] [Indexed: 11/25/2022]
Abstract
BACKGROUND/OBJECTIVES To clarify the association of serum docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) levels with cognitive decline over 10 years. SUBJECTS/METHODS This study was part of the National Institute for Longevity Sciences - Longitudinal Study of Aging, and was conducted with 232 male and 198 female Japanese community-dwelling subjects aged 60-79 years in the second wave (2000-2002). Cognitive function was assessed with the Mini-Mental State Examination (MMSE) in both the second and seventh (2010-2012) waves. Fasting venous blood samples were collected in the morning, and serum DHA and EPA levels were measured. Multiple logistic regression analysis was performed among participants with an MMSE score ≥ 24 in the second wave (n=430) to estimate the odds ratio (OR) and 95% confidence interval (CI) for MMSE score ≤ 23 or MMSE score decline ≥ 4 10 years later. These estimates were based on baseline tertiles of serum DHA or EPA levels, and controlled for age, sex, education, MMSE score at baseline, alcohol consumption, current smoking, body mass index and disease history. RESULTS Fifteen (3.5%) subjects whose MMSE score was ≤ 23 and 36 (8.3%) subjects whose MMSE score declined to ≥ 4 showed cognitive decline. Multivariate-adjusted OR (95% CI) for the lowest through highest tertiles of serum DHA to MMSE score ≤ 23 or decline ≥ 4 were 1.00 (reference), 0.11 (0.02-0.58) and 0.17 (0.04-0.74), or 1.00 (reference), 0.22 (0.08-0.61) and 0.31 (0.12-0.75), respectively (P for trend=0.01 or 0.04). Serum EPA was not associated with cognitive decline. CONCLUSIONS The study gives some indication that a moderately high level of serum DHA might prevent cognitive decline among community-dwelling elderly Japanese individuals.
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Affiliation(s)
- R Otsuka
- Section of Longitudinal Study of Aging, National Institute for Longevity Sciences (NILS-LSA), National Center for Geriatrics and Gerontology, Aichi, Japan
| | - C Tange
- Section of Longitudinal Study of Aging, National Institute for Longevity Sciences (NILS-LSA), National Center for Geriatrics and Gerontology, Aichi, Japan
| | - Y Nishita
- Section of Longitudinal Study of Aging, National Institute for Longevity Sciences (NILS-LSA), National Center for Geriatrics and Gerontology, Aichi, Japan
| | - Y Kato
- Section of Longitudinal Study of Aging, National Institute for Longevity Sciences (NILS-LSA), National Center for Geriatrics and Gerontology, Aichi, Japan
| | - T Imai
- Section of Longitudinal Study of Aging, National Institute for Longevity Sciences (NILS-LSA), National Center for Geriatrics and Gerontology, Aichi, Japan
- Faculty of Human Life and Science, Doshisha Women's College of Liberal Arts, Kyoto, Japan
| | - F Ando
- Section of Longitudinal Study of Aging, National Institute for Longevity Sciences (NILS-LSA), National Center for Geriatrics and Gerontology, Aichi, Japan
- Faculty of Health and Medical Sciences, Aichi Shukutoku University, Aichi, Japan
| | - H Shimokata
- Section of Longitudinal Study of Aging, National Institute for Longevity Sciences (NILS-LSA), National Center for Geriatrics and Gerontology, Aichi, Japan
- Graduate School of Nutritional Sciences, Nagoya University of Art and Science, Aichi, Japan
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Otsuka R, Kato Y, Nishita Y, Tange C, Nakamoto M, Tomida M, Imai T, Ando F, Shimokata H. Cereal Intake Increases and Dairy Products Decrease Risk of Cognitive Decline among Elderly Female Japanese. J Prev Alzheimers Dis 2014; 1:160-167. [PMID: 29251743 DOI: 10.14283/jpad.2014.29] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND If cognitive decline can be prevented through changes in daily diet with no medical intervention, it will be highly significant for dementia prevention. OBJECTIVES This longitudinal study examined the associations of different food intakes on cognitive decline among Japanese subjects. DESIGN Prospective cohort study. SETTING The National Institute for Longevity Sciences - Longitudinal Study of Aging, a community-based study. PARTICIPANTS Participants included 298 males and 272 females aged 60 to 81 years at baseline who participated in the follow-up study (third to seventh wave) at least one time. MEASUREMENTS Cognitive function was assessed with the Mini-Mental State Examination (MMSE) in all study waves. Nutritional intake was assessed using a 3-day dietary record in the second wave. Cumulative data among participants with an MMSE >27 in the second wave were analyzed using a generalized estimating equation. Multivariate adjusted odds ratios (OR) and 95% confidence intervals (CI) for an MMSE score ≤27 in each study wave according to a 1 standard deviation (SD) increase of each food intake at baseline were estimated, after adjusting for age, follow-up time, MMSE score at baseline, education, body mass index, annual household income, current smoking status, energy intake, and history of diseases. RESULTS In men, after adjusting for age, and follow-up period, MMSE score at baseline, the adjusted OR for a decline in MMSE score was 1.20 (95% CI, 1.02-1.42; p=0.032) with a 1-SD increase in cereal intake. After adjusting for education and other confounding variables, the OR for a decrease in MMSE score did not reach statistical significance for this variable. In women, multivariate adjusted OR for MMSE decline was 1.43 (95% CI, 1.15-1.77; p=0.001) with a 1-SD increase in cereal intake and 0.80 (95% CI, 0.65-0.98; p=0.034) with a 1-SD increase in milk and dairy product intake. CONCLUSIONS This study indicates that a 1-SD (108 g/day) decrease in cereal intake and a 1-SD (128 g/day) increase in milk and dairy product intake may have an influence of cognitive decline in community-dwelling Japanese women aged 60 years and older. Further studies are needed in order to explore the potential causal relationship.
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Affiliation(s)
- R Otsuka
- Rei Otsuka, Section of NILS-LSA, National Center for Geriatrics and Gerontology, 35 Gengo, Morioka-cho, Obu, Aichi 474-8511, Japan, , T +81-562-46-2311 F +81-562-44-6593
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Chen LK, Akishita M, Shimokata H, Lee Y. Frailty in older people: Dynamic perspectives. Eur Geriatr Med 2013. [DOI: 10.1016/j.eurger.2013.07.060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Ando F, Takemura M, Matsui Y, Shimokata H. SP3-26 Prevalence and consultation rates of life-style related diseases in Japanese middle-aged and elderly women. Br J Soc Med 2011. [DOI: 10.1136/jech.2011.142976o.26] [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: 11/03/2022]
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Furuta T, Teranishi M, Uchida Y, Nishio N, Kato K, Otake H, Yoshida T, Tagaya M, Suzuki H, Sugiura M, Sone M, Hiramatsu M, Sugiura S, Ando F, Shimokata H, Nakashima T. Association of interleukin-1 gene polymorphisms with sudden sensorineural hearing loss and Ménière's disease. Int J Immunogenet 2011; 38:249-54. [PMID: 21385326 DOI: 10.1111/j.1744-313x.2011.01004.x] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Sudden sensorineural hearing loss (SSNHL) and Ménière's disease are the most common inner ear diseases in which the causes are unknown. As recent magnetic resonance imaging has demonstrated disruption of the blood-labyrinth barrier in these inner ear diseases, inflammatory reaction associated with increased permeability of the blood vessels may be involved. The genotypes of interleukin 1A (IL1A) (-889C/T; rs1800587) and interleukin 1B (IL1B) (-511C/T; rs16944) were determined using an allele-specific primer-polymerase chain reaction method in 72 patients with SSNHL, 68 patients with Ménière's disease, and 2202 control subjects living almost in the same area as the patients. A significantly higher prevalence of the IL1A-889T allele was observed in SSNHL and Ménière's disease compared with controls, although no significant difference in distribution of IL1B-511C/T genotypes was observed between the patients and controls. Adjusted odd ratios for SSNHL and Ménière's disease risks in the -889TT genotypes were 25.89 (95% confidence interval (CI) 12.19-54.98) and 18.20 (95% CI 7.80-42.46), respectively, after age and gender were taken as moderator variables. Our results suggested that IL1A is closely associated with susceptibility of SSNHL and Ménière's disease.
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Affiliation(s)
- T Furuta
- Department of Otorhinolaryngology, Graduate School of Medicine, Nagoya University, 65 Tsurumai-cho, Showa-ku, Nagoya, Japan
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Sugiura M, Nakamura M, Ogawa K, Ikoma Y, Ando F, Shimokata H, Yano M. Dietary patterns of antioxidant vitamin and carotenoid intake associated with bone mineral density: findings from post-menopausal Japanese female subjects. Osteoporos Int 2011; 22:143-52. [PMID: 20480147 DOI: 10.1007/s00198-010-1239-9] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2009] [Accepted: 03/01/2010] [Indexed: 01/27/2023]
Abstract
UNLABELLED Recent studies show that antioxidants may reduce the risk of osteoporosis. This study showed the associations of bone mineral density with dietary patterns of antioxidant vitamins and carotenoids. The findings suggest the combination of vitamin C and β-cryptoxanthin intakes might provide benefit to bone health in post-menopausal Japanese female subjects. INTRODUCTION Recent epidemiological studies show antioxidants may reduce the risk of osteoporosis, but little is known about the dietary patterns of antioxidant vitamin and carotenoid intakes and their relation with bone mineral density (BMD). METHODS A total of 293 post-menopausal female subjects who had received health examinations in the town of Mikkabi, Shizuoka Prefecture, Japan, participated in the study. Radial BMD was measured using dual-energy X-ray absorptiometry. Dietary intakes of antioxidant vitamins and carotenoids were assessed by using a validated food-frequency questionnaire. Dietary patterns were identified on a selected set of antioxidants through principal component factor analysis. RESULTS Three dietary patterns were identified. The "retinol" pattern, characterized by notably high intakes of preformed retinol, zeaxanthin, and vitamin E, was positively associated with the risk for low BMD. In contrast, the "β-cryptoxanthin" pattern, characterized by notably high intakes of β-cryptoxanthin and vitamin C, was negatively associated with low BMD. The odds ratios for low BMD in the highest tertiles of dietary intakes of preformed retinol, vitamin C, and β-cryptoxanthin against the lowest tertiles were 3.22 [95% confidence interval (CI), 1.38-7.51], 0.25 (CI, 0.10-0.66), and 0.40 (CI, 0.17-0.92), respectively, after adjustments for confounders. However, negative associations of vitamin C and β-cryptoxanthin with low BMD were not significant after further adjustment for intake of β-cryptoxanthin or vitamin C, respectively. Higher intakes of both vitamin C and β-cryptoxanthin were significantly associated with low BMD (P < 0.05). CONCLUSIONS The combination of vitamin C and β-cryptoxanthin may be associated with radial BMD in post-menopausal Japanese female subjects.
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Affiliation(s)
- M Sugiura
- Research team for health benefit of fruit, National Institute of Fruit Tree Science, 485-6 Shimizu-Okitsu-nakachou, Shizuoka-shi, Shizuoka, 424-0292, Japan.
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Abstract
OBJECTIVE To investigate whether Leu72Met polymorphism of the preproghrelin gene is associated with overweight/obesity in middle-aged and older Japanese. DESIGN Cross-sectional analysis. SUBJECTS A total of 2238 community-dwelling middle-aged and older Japanese people (age: 40-79 years) who participated in the first wave of examinations in the National Institute for Longevity Sciences - Longitudinal Study of Aging from April 1998 to March 2000. MEASUREMENTS The Leu72Met polymorphism of prepoghrelin gene, anthropometric variables including body weight, body mass index (BMI), waist circumference, waist-to-hip ratio and whole-fat mass and biochemical variables including serum lipid levels, fasting plasma glucose, insulin and homeostasis model assessment for insulin resistance. RESULTS The frequencies of the Leu72Leu, Leu72Met and Met72Met alleles were 63.4, 32.7 and 4.0%, respectively. No differences in the genotype distributions of the Leu72Met polymorphism were found between genders or age groups, and no significant associations were observed between polymorphism and anthropometric variables in women and older men. However, middle-aged men who were 72Met allele carriers showed a higher body weight change from body weight at 18 years of age, as well as a higher waist circumference and a tendency to a higher waist-hip-ratio than noncarriers. Although there were no significant differences in the genotype distribution according to BMI in women and older men, a significantly higher frequency of the 72Met allele was found in the higher BMI group (BMI> or =25 kg/m(2)) of middle-aged men than in the normal-weight group. No significant associations were observed between polymorphism and serum lipid, glucose or insulin levels. CONCLUSIONS These results suggest that the 72Met allele of the preproghrelin gene is a contributing factor for midlife weight change in men.
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Affiliation(s)
- M Kuzuya
- Department of Geriatrics, Nagoya University Graduate School of Medicine, Showa-ku, Nagoya, Japan.
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Ito Z, Harada A, Matsui Y, Takemura M, Wakao N, Suzuki T, Nihashi T, Kawatsu S, Shimokata H, Ishiguro N. Can you diagnose for vertebral fracture correctly by plain X-ray? Osteoporos Int 2006; 17:1584-91. [PMID: 16917676 DOI: 10.1007/s00198-006-0123-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2005] [Accepted: 03/20/2006] [Indexed: 10/24/2022]
Abstract
INTRODUCTION A wrong diagnosis of latent vertebral fracture is often made when it is based on plain X-ray imaging. Magnetic resonance imaging (MRI) has a high degree of accuracy for the definite diagnosis. This study was designed to identify ways to support improvements in the diagnostic accuracy of plain X-ray (X-P). METHODS We studied X-P and MRI images of 120 women and men (age range: 50-96 years). Five orthopedists and two radiologists interpreted front and lateral thoracolumbar X-Ps and MRI images. The correct diagnosis rate for the presence and location of incident vertebral fractures and the correct diagnosis rate according to morphological classifications were analyzed. RESULTS A correct diagnosis of incident fractures was made in 51.5% of cases overall. Diagnoses of non-incident fracture based on X-P in those cases with incident fracture based on MRI (false positive) occurred in 24.8% of the patients, while diagnoses of incident fracture based on X-P in those cases without incident fracture based on MRI (false negative) occurred in 6.5% of the patients. The application of morphological classifications (the primary osteoporosis diagnostic criteria and Yoshida's classification) resulted in the correct diagnosis rate being significantly higher in the group without prevalent fracture even when there were morphological changes (wedge, indented, protruding type) in the anterior bone cortex. Odds ratios were investigated for factors that would affect the correct diagnosis rate, including age, body weight, lumbar vertebrae bone mineral density, and examiner ability. In an overall investigation, age (OR=0.660), body weight (OR=2.082), and examiner ability (p=0.0205) affected the correct diagnosis rate. CONCLUSION The correct diagnosis rate for incident vertebral fractures with X-Ps was low (24.8%) and in cases with prevalent fractures, the rate was even lower (16.8%), but the number of prevalent fractures and BMD did not exert an effect. One key improving the correct diagnosis rate may be to pay attention to morphological changes in the anterior bone cortex.
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Affiliation(s)
- Z Ito
- Department of Orthopedic Surgery, National Center for Geriatrics and Gerontology, 36-3 Gengo Morioka-cho, Obu, Japan.
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Iwao N, Iwao S, Muller DC, Koda M, Ando F, Shimokata H, Kobayashi F, Andres R. Differences in the relationship between lipid CHD risk factors and body composition in Caucasians and Japanese. Int J Obes (Lond) 2004; 29:228-35. [PMID: 15570315 DOI: 10.1038/sj.ijo.0802615] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
OBJECTIVES To examine differences in the relationship between fat distribution and lipid coronary risk factors in Caucasian and Japanese population and further to determine whether the cut-points for body mass index (BMI) and waist circumference (WC) proposed by WHO and NHLBI are applicable to Japanese population as a predictor of a lipid risk factor abnormality or not. RESEARCH METHODS AND PROCEDURES Subjects were 895 participants of the Baltimore Longitudinal Study of Aging in the US (BLSA) and 1705 participants of the Longitudinal Study of Aging by the National Institutes for Longevity Science in Japan (NILS-LSA). Subjects were divided into four demographic groups as younger (age<65 y) men and women, and older (age> or =65 y) men and women. Blood total cholesterol, triglycerides, LDL- and HDL-cholesterol and anthropometry were measured. Regression coefficients of BMI and WC on risk factors, sensitivity and specificity of the BMI and WC cut-points for blood lipid abnormality, and mean values of blood lipids at BMI or WC cut-points were computed in both populations. RESULTS Height, weight, WC and BMI were significantly greater in the BLSA than those in the NILS-LSA subjects. Total cholesterol, HDL- and LDL-cholesterol were significantly greater in the NILS-LSA than in the BLSA subjects. Sensitivities of BMI and WC cut-points were much lower in the NILS-LSA than in the BLSA subjects. Specificities of BMI and WC cut-points were higher in the NILS-LSA than in the BLSA subjects. Mean values of triglycerides, total cholesterol, HDL- and LDL-cholesterol at BMI=25 were significantly greater in the NILS-LSA than in the BLSA subjects. At the WC cut-point (94 cm for men, 80 cm for women), mean values of all lipids were significantly greater in the NILS-LSA than in the BLSA subjects with the exception of triglycerides in younger women. CONCLUSIONS The Japanese subjects have smaller BMI and WC, worse total and LDL-cholesterol levels and better HDL-cholesterol levels compared to Caucasians. Sensitivities of BMI and WC for predicting lipid risk factor abnormality are much lower in Japanese. The cut-points for BMI and WC proposed by WHO and NHLBI may be too high for predicting an abnormality in triglycerides, total and LDL-cholesterol in Japanese. For detecting an abnormal HDL-cholesterol level, the BMI and WC cut-points may not be as beneficial for the Japanese population as for Caucasians.
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Affiliation(s)
- N Iwao
- Gerontology Research Center/National Institutes for Health/National Institute on Aging, Baltimore, MD 21224, USA
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Abstract
The authors examined the association of the alcohol dehydrogenase 2 (ADH2) genotype with vascular events in community-dwelling Japanese (1,102 men/1,093 women). The allele ADH2*2 encodes an isozyme with a higher level of activity than ADH2*1. Here, the authors show that the ADH2*1 carriage is associated with high prevalence of cerebral infarction and lacunae in men. Multiple regression analyses confirmed that the risk of lacunae and cerebral infarction was increased by the ADH2*1 allele.
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Affiliation(s)
- Y Suzuki
- Department of Biochemistry and Cell Biology, Institute of Development and Aging Sciences, Graduate School of Medicine, Nippon Medical School, Kawasaki, Kanagawa, Japan
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Abstract
OBJECTIVE To examine whether polymorphisms of the estrogen receptor (ER) alpha gene are associated with body fat distribution. DESIGN Cross-sectional, epidemiological study of two single-nucleotide polymorphisms, a T --> C (PvuII) and an A --> G (XbaI), in the first intron of the ERalpha gene. SUBJECTS A total of 2238 community-dwelling middle-aged and elderly Japanese population (age: 40-79 y). MEASUREMENTS The ERalpha genotypes (by automated fluorescent allele-specific DNA primer assay system), anthropometric variables, fat mass (FM) and percentage FM (%FM) (by dual-energy X-ray absorptiometry). RESULTS FM and waist were inversely associated with age (r=-0.630 and -0.504, respectively) in women with the GG genotype. On the other hand, waist circumference of the AA genotype was positively correlated with age (r=0.231). Thus, for middle-aged women (40-59 y) with the AG or GG genotype body mass index (BMI), %FM, FM, waist, hip and waist-to-hip ratio (WHR) were larger than those with the AA genotype. In particular, FM and waist were greater by 20% and 9%, respectively, for the GG genotype, compared to the AA genotype. Alternatively, FM and waist were smaller by 18% and 6%, respectively, in older women with the GG genotype, compared to the AA genotype. No effect was found among the A --> G polymorphisms for men. For both genders, no difference was found in any variables among the TT, TC and CC genotypes with the exception of BMI of older men (60-79 y). CONCLUSION No association was found between the ERalpha gene polymorphisms and body fat distribution in men. For women, the A --> G polymorphism, in particular the GG genotype, may contribute to the development of upper-body obesity in middle-aged individuals, but may serve to decrease the whole-body and abdominal fat tissue of older individuals.
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Affiliation(s)
- T Okura
- Department of Epidemiology, National Institute for Longevity Sciences, Gengo Morioka-cho Obu Aichi, Japan.
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Masuda Y, Fetters M, Shimokata H, Muto E, Mogi N, Iguchi A, Uemura K. Outcomes of written living wills in Japan--a survey of the deceased ones' families. Bioethics Forum 2002; 17:41-52. [PMID: 12166427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
A study was recently done to investigate the outcomes of written living wills in Japan, which, unlike the United States, does not legally recognize advance directives. This study collected demographic information and predictors of living will use among families and guardians who used the living will form provided by the Japan Society for Dying with Dignity. According to the results of the study, affliction with cancer and death in a hospital was the best predictor of written living will use. Research on physicians' treatment limitation and withdrawal behaviors in the clinical setting is needed to better understand the actual impact of living wills. Such research can provide better understanding of where boundaries of self-determination are drawn and how to respect autonomy in Japan.
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Abstract
BACKGROUND AND STUDY AIMS The present study was carried out in order to elucidate the mechanism of the development of gastric ulcer, one of the serious complications of PEG tube placement. PATIENTS AND METHODS This retrospective study included 92 patients who underwent gastric endoscopy after PEG tube placement. Gastric ulcers detected at gastroscopy were examined in relation to the length of the protrusion from the PEG tubes intragastric bumper and the use of histamine H 2 -receptor antagonists. RESULTS Gastric ulcers were found in nine of the 92 patients, and in all nine the ulcer was found on the posterior wall of the gastric body, where the tip of the PEG tube was attached. Seven of the 21 patients (33.3 %) who had a PEG tube with a long protrusion from the intragastric bumper developed gastric ulcer. By contrast, only two of the 71 patients (2.8 %) who had a PEG tube with a short protrusion developed gastric ulcer. The use of H 2 -blockers had no significant impact on the development of gastric ulcer. CONCLUSIONS The occurrence of gastric ulcer after PEG placement was attributable to the shape of the PEG tube within the intragastric space, and not to the use of H 2 -blockers, suggesting that appropriate placement of the PEG tube is an important factor in preventing gastric ulcer.
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Affiliation(s)
- J Kanie
- Dept. of Internal Medicine, Fukiage Digestive Endoscopy Center, Nagoya, Japan.
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Iwao S, Iwao N, Muller DC, Elahi D, Shimokata H, Andres R. Does waist circumference add to the predictive power of the body mass index for coronary risk? Obes Res 2001; 9:685-95. [PMID: 11707535 DOI: 10.1038/oby.2001.93] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
OBJECTIVES To examine the power of the combined measurements of body mass index (BMI) and waist circumference (WC) for the prediction of abnormality in coronary heart disease risk factors and to determine whether the additional measurement of WC is predictive in older men and women. RESEARCH METHODS AND PROCEDURES 1190 men and 751 women of the Baltimore Longitudinal Study of Aging were dichotomized into younger (<65 years) and older (65+ years) age groups. Coronary risk factors in the realms of glucose/insulin metabolism, blood pressure, and plasma lipids were assessed. The relationship of BMI and WC, singly and combined, to 10 risk factors for coronary heart disease was examined. RESULTS In younger and older men and women, BMI and WC are highly correlated (0.84 to 0.88). BMI and WC are also significantly correlated to all 10 coronary risk factors in younger men and women and to 8 of the 10 in the older men and women. Both partial correlation and logistic regression analyses revealed a modest but significant improvement in the prediction of coronary risk in younger men and women by WC after controlling for the level of BMI. There was no improvement in the older subjects. DISCUSSION WC adds only modestly to the prediction of coronary risk in younger subjects once BMI is known, and adds nothing to the production of risk in older subjects.
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Affiliation(s)
- S Iwao
- National Institute on Aging, National Institute of Health, Baltimore, Maryland 21224, USA
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Tsuzuku S, Shimokata H, Ikegami Y, Yabe K, Wasnich RD. Effects of high versus low-intensity resistance training on bone mineral density in young males. Calcif Tissue Int 2001; 68:342-7. [PMID: 11685421 DOI: 10.1007/s002230010001] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2001] [Accepted: 12/04/2001] [Indexed: 11/30/2022]
Abstract
The purpose of this study was to investigate the effect of high-intensity and low-intensity resistance training upon bone mineral density (BMD) by comparing the BMD of young male powerlifters (n = 5), recreational trainees (n = 5), and controls (n = 5). Lumbar spine (L2-L4), proximal femur, and whole body BMDs were measured using dual-energy X-ray absorptiometry (DXA). The high-intensity group showed a significantly greater BMD when the whole body and trochanter regions were measured than the low-intensity and control group. The BMD of the lumbar spine, femoral neck, and Ward's triangle was greater in the high-intensity group compared with the control group. There was no significant BMD difference between the low-intensity and control group except at the trochanter region. These results suggest that high-intensity resistance training is effective for increasing BMD, but low-intensity resistance training is not.
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Affiliation(s)
- S Tsuzuku
- Body Design Medical Institute, Ikuno, Osaka, Japan
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Masuda Y, Kuzuya M, Uemura K, Yamamoto R, Endo H, Shimokata H, Iguchi A. The effect of public long-term care insurance plan on care management and care planning in Japanese geriatric hospitals. Arch Gerontol Geriatr 2001; 32:167-177. [PMID: 11313106 DOI: 10.1016/s0167-4943(01)00084-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Japan, a society facing demographic aging at an incomparable speed, decided to introduce a new public long-term care insurance system to meet the expected need for elders to be cared for in the near future. The purpose of this study was to examine the change in knowledgeability on the side of managers of Japanese geriatric hospitals regarding (1) the concept of care-management as the methodology to supply care services to the elderly smoothly, and (2) comprehensive assessment for the elders as the technical skill in the process of materializing care management. Subjects were interviewed and questioned over the telephone according to a structural questionnaire. Managers (directors and office managers) of geriatric hospitals in 1996 and 1999. In 1996, the rate of knowledgeability for care management on the side of managers of geriatric hospitals was 70.0% (28/40) as a whole, increasing to 97.3% (71/73) in 1999. With regard to MDS-RAPs, the knowledgeability rate increased from 57.5% (23/40) in 1996 to 95.9% (70/73) in 1999. However, regarding care planning, almost all of the hospitals that performed care planning were those in the category required to submit care plans to the municipal government. Geriatric hospitals that were not required to submit such plans did not perform such planning either in 1996 or in 1999. It can be concluded that the decision to introduce a long-term care insurance system in Japan has led to a deeper understanding of the methodology of care management and a comprehensive assessment on the side of managers of geriatric hospitals.
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Affiliation(s)
- Y Masuda
- Department of Geriatrics, Nagoya University Graduate School of Medicine, 65 Tsuruma-cho, Showa-ku, Aichi, 466-8550, Nagoya, Japan
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Abstract
Genetic background is an important factor for longevity. Life-style and environmental factors, such as nutrition, physical activity, smoking and alcohol, are also important. For example, obesity is negatively associated with health and longevity. It is known that dietary restriction is the most consistent method of extending life span in rats. In human, however, under nutrition as well as over nutrition is a risk factor for a short life. Losing weight is often dangerous in the elderly, in whom reserved physiological functions are limited. Smoking, diabetes mellitus and hypertension accelerate human aging, while physical activity and a moderate amount of alcohol is good to live long. Preventive medicine and health support are also important to promote longevity. Good results of new strategies such as custom-made health support and preventive treatment are anticipated in the near future. Accumulation of basic data in human aging and health are essential to the practice of preventive medicine and health support. A new comprehensive longitudinal study was started at the National Institute of Longevity Sciences (NILS) in 1997 (NILS-Longitudinal Study of Aging, NILS-LSA). The results of this study should be helpful for the practice of preventive medicine and health support.
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Iwao N, Iwao S, Muller DC, Elahi D, Shimokata H, Andres R. A test of recently proposed BMI standards with respect to old age. Aging (Milano) 2000; 12:461-9. [PMID: 11211957 DOI: 10.1007/bf03339878] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The purpose of this study was to investigate the effects of age on the relationship between BMI and multiple coronary risk factors, and to determine whether the BMI classification by NHLBI and WHO is applicable as a predictor of coronary risk factors in older (>65 years) as well as in younger (<65 years) men and women. Effects of age on ten coronary risk factors were examined. Sex differences in the slopes of BMI on risk factors were compared between younger and older subjects in order to examine the effects of age on these relationships. The frequency of risk factor abnormality in individual BMI groups (18.5-24.9, 25.0-29.9, 30.0+) was examined for four age-sex groups. The significance of an age group-BMI interaction term was tested by the logistic regression model to see whether there is a significant difference in the relationship between BMI and the individual risk factor abnormalities between younger and older subjects. Older subjects had significantly higher values for most risk factors than younger subjects. The slopes of BMI on risk factors were different between younger and older subjects for fasting glucose, total, HDL- and LDL-cholesterol in men, and for diastolic blood pressure, total and LDL-cholesterol in women. The proportion of subjects with abnormal risk factor levels in each of the three BMI groups was higher in older than in younger subjects for most risk factors. There was generally a progressive worsening of the risk factor levels with increasing BMI in both age groups. There was no consistent age difference in the relationship between BMI groups and the frequency of risk factor abnormality. We conclude that, although age increases the frequency of most cardiovascular risk factor abnormalities, in general, it does not affect the trend of the relationship between the risk factors and the normal, overweight and obese BMI groups defined by NHLBI and WHO. Therefore, these BMI categories are applicable as predictors of risk factor levels in older as well as in younger men and women.
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Affiliation(s)
- N Iwao
- Metabolism Section, Laboratory of Clinical Investigation, National Institute on Aging, Baltimore, MD, USA
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Nomura H, Shimokata H, Niino N, Ando F, Sugita J, Miyake Y. Estimation of anterior nucleus of lens by Scheimpflug image before and after pupil dilatation. Jpn J Ophthalmol 2000; 44:682-5. [PMID: 11094188 DOI: 10.1016/s0021-5155(00)00287-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
PURPOSE To compare the accuracy of lens transparency evaluations by Scheimpflug image in the anterior nucleus of the lens before and after pupil dilatation. METHODS Scheimpflug lens images were recorded in 70 eyes of 38 subjects (age: 28-75 years) before and after pupil dilatation, and light scattering intensity measurements before and after dilatation were compared. RESULTS There was a significant positive correlation between the light scattering intensity before and after dilatation at the anterior cortex, anterior nucleus, and central clear zone of the lens (r > 0.9, P <.0001). CONCLUSIONS It is possible to estimate the transparency in the anterior nucleus of the lens from the Scheimpflug image without pupil dilatation. If nuclear type cataracts are regarded as a structural marker of aging in epidemiological studies, measuring the light scattering intensity in the anterior nucleus of the lens without dilatation seems to be a safe, useful, and quantitative method.
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Affiliation(s)
- H Nomura
- Department of Epidemiology, National Institute for Longevity Sciences, Obu, Aichi, Japan
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Kajioka T, Shimokata H, Sato Y. The effect of daily walking on body fat distribution. Environ Health Prev Med 2000; 5:85-9. [PMID: 21432190 DOI: 10.1265/ehpm.2000.85] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/1999] [Accepted: 05/21/2000] [Indexed: 12/23/2022] Open
Abstract
The effect of daily walking on body fat distribution was investigated using an electronic pedometer and ultrasonography. Subjects were 77 women, aged 31 to 72 years. They were divided into four groups according to the average number of steps they walked per day (I<7,500, 7,500 ≤II<10,000, 10,000 <III<12,500, 12,500 ≤IV). Subcutaneous fat in the trunk and limbs, and the minimum thickness of subcutaneous fat (Smin) and the maximum thickness of preperitoneal fat (Pmax) below the xiphoid process were measured by ultrasonography. Abdominal wall fat index (AFI) reflecting the intra-abdominal fat accumulation was obtained by dividing Pmax by Smin. Fat distribution was analyzed by ANCOVA, controlled for age, body mass index (BMI), percent body fat, and menopausal status. Energy and macronutrient intake were obtained through a nutritional survey. There were no significant differences in anthropometric variables, energy and macronutrient intake, and subcutaneous fat thickness in trunk and limbs. Pmax of Group I was significantly higher than Group IV. Furthermore, Group I showed significantly higher AFI than the other three Groups (II, III, IV). The results of this study suggested that women who walked less than 7,500 steps per day tend to have significantly increased intra-abdominal fat accumulation.
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Affiliation(s)
- T Kajioka
- Research Center of Health, Physical Fitness and Sports, Nagoya University, Furo-cho, Chikusa-ku, 464-8601, Nagoya, Aichi, Japan
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Fujisawa M, Matsubayashi K, Wada T, Okumiya K, Doi Y, Shimokata H. [The comparison of blood pressure of community-dwelling elderly subjects in Okinawa and Shikoku]. Nihon Ronen Igakkai Zasshi 2000; 37:744-8. [PMID: 11109847 DOI: 10.3143/geriatrics.37.744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
In Japan hypertension is frequent, but the prevalence of hypertension in Okinawa has been known to be lower than in other areas in Japan. Now it has been almost 30 years since Okinawa reverted to Japan. So we investigated to know whether the prevalence of hypertension was still lower today or not. We compared the differences of prevalence of hypertension and blood pressure (BP) levels between the two community-dwelling elderly subjects aged 75 years or more: 305 in Ie in Okinawa (M:F = 107:198, mean age: 81 years old), and 99 in Omogo in Ehime, Shikoku (M:F = 45:54, mean age: 81 years old). We visited the homes of the elderly and measured their BP twice in a sitting position and asked them whether they were taking medicine for hypertension or not. According to the 1999 revised guidelines on the treatment of hypertension in the elderly by the Japanese Society of Geriatrics, we defined hypertension as systolic BP (SBP) > or = 160 mmHg or diastolic BP (DBP) > or = 90 mmHg or taking medicine for hypertension, and normotension as SBP < 160 mmHg and DBP < 90 mmHg and not taking medicine for hypertension. Hypertension rates were 52% in Ie, and 59% in Omogo, indicating no significant difference. However, in Ie only 54% of the elderly with hypertension were taking medicine for hypertension, as opposed to 74% in Omogo. These results suggest the possibility that in Okinawa hypertension is thought to be less important than in other districts in Japan.
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Affiliation(s)
- M Fujisawa
- Center for Southeast Asian Studies, Kyoto University
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Koda M, Shimokata H. [Epidemiological studies on physical activity, obesity, and body composition]. Nihon Rinsho 2000; 58 Suppl:404-8. [PMID: 11085150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Affiliation(s)
- M Koda
- Department of Epidemiology, National Institute for Longevity Sciences
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Abstract
BACKGROUND Some cross-sectional studies have suggested that age, systolic blood pressure and obesity are positively related to intraocular pressure (IOP), but few longitudinal studies have examined this relationship. This study was carried out to evaluate the association between intraocular pressure and obesity by cross-sectional and longitudinal analyses in a large Japanese population. METHODS Data were collected from annual health examinations between 1989 and 1997 and reviewed retrospectively. Subjects of the cross-sectional analysis were 70 139 males and females aged 14-94 years. Among these subjects, 25 216 males and females who had undergone IOP measurements more than three times were analysed longitudinally. The association between IOP and obesity was examined cross-sectionally and longitudinally. RESULTS Cross-sectional analysis: The mean IOP at the last visit was 11.6 mmHg. The IOP decreased gradually with age and was significantly higher in males than in females in almost all age groups. Body mass index (BMI) significantly correlated with IOP after controlling for age, gender and blood pressure. Longitudinal analysis: There was a significant association between longitudinal change in IOP and change in weight. This relationship remained significant after controlling for initial BMI, initial blood pressure, change in blood pressure, gender and age. CONCLUSION This study showed a significant association between IOP and obesity in both cross-sectional and longitudinal analysis. These findings suggest that obesity is an independent risk factor for increase in IOP.
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Affiliation(s)
- K Mori
- Research Center of Health, Physical Fitness and Sports, Nagoya University, Nagoya, Japan
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Abstract
OBJECTIVE To examine the relationship between various coronary risk factors and the different levels of fat distribution in younger (<65 years) and older (> or = 65 years) men and women, using the classifications proposed by the National Heart, Lung and Blood Institute (NHLBI) and the World Health Organization (WHO). DESIGN Cross-sectional study of subjects enrolled in the Baltimore Longitudinal Study of Aging. MEASUREMENTS Systolic blood pressure, diastolic blood pressure, fasting glucose, 2-hour glucose, fasting insulin, homeostasis model assessment insulin resistance (HOMAIR), triglyceride, total cholesterol, high-density lipoprotein (HDL)-cholesterol, and low-density lipoprotein (LDL)-cholesterol were measured as risk factors. The proportion of subjects with abnormal risk factor levels by waist circumference classifications was determined in the age and gender subgroups. RESULTS There were significant adverse effects of age per se on all risk factors with the exception of fasting insulin and HOMAIR in both men and women, total cholesterol in men, and diastolic blood pressure in women. HDL-cholesterol was higher in older subjects. There were significant correlations between waist circumference and all of the risk factors in the younger group. Waist circumference did not have a significant correlation with total cholesterol in older men, or with total cholesterol and LDL-cholesterol in older women. The proportion of subjects with an abnormal risk factor level increased with increasing waist circumference for most risk factors in both younger and older subjects, but proportions of subjects in each individual waist group were higher in older than in younger groups for systolic blood pressure, diastolic blood pressure, fasting glucose, and 2-hour glucose in men, and for systolic blood pressure, fasting glucose, 2-hour glucose, total and LDL-cholesterol, and triglyceride in women. CONCLUSIONS Our data indicate that the waist circumference cutpoints proposed by NHLBI and WHO standards are useful for the prediction of cardiovascular disease risk factors in older as well as in younger men and women.
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Affiliation(s)
- S Iwao
- National Institute on Aging, National Institutes of Health, Baltimore, Maryland 21224, USA
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Koda M, Tsuzuku S, Ando F, Niino N, Shimokata H. Body composition by air displacement plethysmography in middle-aged and elderly Japanese. Comparison with dual-energy X-ray absorptiometry. Ann N Y Acad Sci 2000; 904:484-8. [PMID: 10865792 DOI: 10.1111/j.1749-6632.2000.tb06503.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- M Koda
- Department of Epidemiology, National Institute for Longevity Sciences, Aichi, Japan.
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Nomura H, Tanabe N, Nagaya S, Ando F, Niino N, Miyake Y, Shimokata H. Eye examinations at the National Institute for Longevity Sciences--Longitudinal Study of Aging: NILS-LSA. J Epidemiol 2000; 10:S18-25. [PMID: 10835824 DOI: 10.2188/jea.10.1sup_18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The National Institute for Longevity Sciences--Longitudinal Study of Aging (the NILS-LSA) started in 1997, and involves many kinds of examination. The objective of this paper is to outline the eye examinations in the NILS-LSA. The eye examinations consist of checks on refractometry, visual acuity, intraocular pressure, contrast sensitivity, kinetic visual acuity, visual fields, fundus photography, and lens estimation. The subjects were 1,077 men and women aged 40-79 years who participated in the first year examination of the NILS-LSA. All subjective measurements (distant visual acuity, kinetic visual acuity, contrast sensitivity, and mean sensitivity of visual field) declined significantly from the 50s. Age-related structural changes in the lens or hypertensive and arteriosclerotic changes in retinal vessels began at least in the 40s. It is suspected that aging affects the subjective visual functions from the 50s. However, changes in the structure of eye may begin before the 40s. The data from the eye examinations of the NILS-LSA are useful to assess the aging effects on vision and to investigate the relationship between visual function and physical or psychosocial health problems among the elderly.
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Affiliation(s)
- H Nomura
- Department of Epidemiology, National Institute for Longevity Sciences, Aichi, Japan
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Shimokata H, Ando F, Niino N. A new comprehensive study on aging--the National Institute for Longevity Sciences, Longitudinal Study of Aging (NILS-LSA). J Epidemiol 2000; 10:S1-9. [PMID: 10835822 DOI: 10.2188/jea.10.1sup_1] [Citation(s) in RCA: 144] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A new comprehensive longitudinal study of aging, the National Institute for Longevity Sciences, Longitudinal Study of Aging (NILS-LSA) started in November 1997. The participants of this study will be 2,400 residents aged 40 to 79 years who were age- and gender-stratified random samples selected from the NILS area. All participants provided written informed consent after a detailed explanation of the study. They will be examined at the NILS-LSA Examination Center every two years. Their first wave examinations will be finished by the end of March 2000. The examined variables number over 1,000, including clinical evaluations, medical examinations, anthropometry, body composition, physical functions, physical activities, psychological assessments, nutritional analysis and molecular epidemiology. By the end of September 1999, 1,643 men and women had completed their first wave examinations.
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Affiliation(s)
- H Shimokata
- Department of Epidemiology, National Institute for Longevity Sciences, Aichi, Japan
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Abstract
Audiometric test results from 933 community dwelling males and females were presented to obtain the norm for each generation after middle age. Three aspects were adopted in this analysis; the cross-sectional aging transition of pure tone thresholds, the comparison in the self-perceived hearing difficulty among generations and the evaluation of middle ear function using multifrequency tympanometry. Subjects were divided into four age groups; 40s, 50s, 60s and 70s. There were statistically significant differences in pure tone thresholds between almost any two age groups at each frequency in both genders, especially at higher frequencies. The pure tone thresholds were also discussed in regard to gender difference and laterality. A contradiction between self-perceived hearing difficulty and auditory accuracy was observed in the elderly generation. Analysis of tympanometric measurements was performed on static admittance at 226 Hz, tympanometric peak pressure at 226 Hz and resonance frequency of the middle ear. These variables did not show any systematic aging change. However, it was considered they represented the reference values of each generation.
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Affiliation(s)
- Y Uchida
- Department of Otorhinolaryngology, Nagoya University School of Medicine, Japan
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Abstract
The purpose of this article was to expand past research by examining relationships between age awareness and related factors in Japanese middle-aged and elderly people. The subjects were 1,129 participants (575 men and 554 women, aged 40 to 79 years) of the National Institute for Longevity Sciences--Longitudinal Study of Aging (NILS-LSA). They were examined with a questionnaire and interview. As a result, chronological age, self-rated health, and visual and hearing ability tend to be the related factors for awareness of aging. Comparing the demographic and physiological factors, however, major life events, difficulties and daily life experiences showed a stronger influence on age awareness. These results provide an interesting basis for the future understanding of adult development and the meaning of aging.
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Affiliation(s)
- S Tsuboi
- Department of Epidemiology, National Institute for Longevity Sciences, Aichi, Japan
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Fukukawa Y, Tsuboi S, Niino N, Ando F, Kosugi S, Shimokata H. Effects of social support and self-esteem on depressive symptoms in Japanese middle-aged and elderly people. J Epidemiol 2000; 10:S63-9. [PMID: 10835830 DOI: 10.2188/jea.10.1sup_63] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
We examined the relationship among social support, self-esteem, and depression. The subjects were 1,116 Japanese community-dwelling adults aged between 40-79, who were the first wave participants of the National Institute for Longevity Sciences--Longitudinal Study of Aging (NILS-LSA). Exploratory and confirmatory factor analyses were performed on the Rosenberg's self-esteem scale that supported the superiority of the bi-dimensional structure of the scale marked by self-confidence and self-deprecation subscales. The subsequent causal analyses, using structural equation modeling, demonstrated that social support reduced depressed affect through an increase in self-confidence and a decrease in self-deprecation. By contrast, social support did not show a direct effect on depressed affect. The findings suggest the importance of esteem-improving elements of social support in reducing depressive symptoms.
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Affiliation(s)
- Y Fukukawa
- Department of Epidemiology, National Institute for Longevity Sciences, Aichi, Japan
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