1
|
Jung S, Lee Y, Kim K, Park S. Association of the dietary inflammatory index with sarcopenic obesity and frailty in older adults. BMC Geriatr 2024; 24:654. [PMID: 39097690 PMCID: PMC11297761 DOI: 10.1186/s12877-024-05239-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 07/23/2024] [Indexed: 08/05/2024] Open
Abstract
OBJECTIVES This study examined whether a higher dietary inflammatory index (DII®) is associated with the risk of sarcopenic obesity (SO) and frailty among Korean older adults. METHODS A total of 950 participants aged 70-84 years, who completed the baseline nutrition survey of the Korean Frailty and Aging Cohort Study, were included in the analysis. The DII, quantifying the dietary inflammatory potential, was calculated using 23 foods and nutrients as assessed by a 24-h dietary recall. SO was defined as the coexistence of sarcopenia (dual-energy X-ray absorptiometry-measured appendicular skeletal muscle mass index of < 7.0 for males; <5.4 for females) and abdominal obesity (waist circumference of ≥ 90 cm for males; ≥85 cm for females). Frailty status was assessed using the Fried frailty index (range, 0-5), a simple tool for defining frailty that consists of three or more of five frailty items. Multinomial logistic regression models were used to estimate odds ratios (ORs) with 95% confidence intervals (CIs), adjusting for confounders. RESULTS The prevalence of SO and frailty was 9.8% and 10.8%, respectively. The DII was significantly higher in the frail group (2.7) compared to the robust and SO groups (2.0 vs. 1.8) (P < 0.001). Among nutrients and foods included in the DII, the frail group exhibited lower vitamin E, niacin, vitamin B6, energy, and protein intakes than the robust and SO groups. Multivariable-adjusted OR (95% CI) for frailty versus robust (comparing DII tertile 3 to tertile 1) was 2.3 (1.1-4.8; P-trend = 0.02). However, no significant association was observed between the DII and SO (OR, 1.1; 95% CI, 0.5-2.1; P-trend = 0.6). CONCLUSIONS A higher DII score was associated with increased odds of frailty but not with SO in Korean older adults, suggesting that proinflammatory diets have a greater impact on frailty than that on SO in the older population.
Collapse
Affiliation(s)
- Sukyoung Jung
- Department of Health Care Policy Research, Korea Institute for Health and Social Affairs, Sejong, South Korea
| | - Yunhwan Lee
- Department of Preventive Medicine and Public Health, Ajou University School of Medicine, Suwon, South Korea
| | - Kirang Kim
- Department of Food Science and Nutrition, Dankook University, 119 Dandae-ro, Dongnam-gu, Cheonan, 31116, South Korea.
| | - Sohyun Park
- Department of Food Science and Nutrition, Hallym University, Chuncheon, Gangwon, 24252, South Korea.
- The Korean Institute of Nutrition, Hallym University, Chuncheon, South Korea.
| |
Collapse
|
2
|
Pinel A, Guillet C, Capel F, Pouget M, De Antonio M, Pereira B, Topinkova E, Eglseer D, Barazzoni R, Cruz-Jentoft AJ, Schoufour JD, Weijs PJM, Boirie Y. Identification of factors associated with sarcopenic obesity development: Literature review and expert panel voting. Clin Nutr 2024; 43:1414-1424. [PMID: 38701709 DOI: 10.1016/j.clnu.2024.04.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 04/09/2024] [Accepted: 04/20/2024] [Indexed: 05/05/2024]
Abstract
Sarcopenic obesity (SO) is defined as the combination of excess fat mass (obesity) and low skeletal muscle mass and function (sarcopenia). The identification and classification of factors related to SO would favor better prevention and diagnosis. The present article aimed to (i) define a list of factors related with SO based on literature analysis, (ii) identify clinical conditions linked with SO development from literature search and (iii) evaluate their relevance and the potential research gaps by consulting an expert panel. From 4746 articles screened, 240 articles were selected for extraction of the factors associated with SO. Factors were classified according to their frequency in the literature. Clinical conditions were also recorded. Then, they were evaluated by a panel of expert for evaluation of their relevance in SO development. Experts also suggested additional factors. Thirty-nine unique factors were extracted from the papers and additional eleven factors suggested by a panel of experts in the SO field. The frequency in the literature showed insulin resistance, dyslipidemia, lack of exercise training, inflammation and hypertension as the most frequent factors associated with SO whereas experts ranked low spontaneous physical activity, protein and energy intakes, low exercise training and aging as the most important. Although literature and expert panel presented some differences, this first list of associated factors could help to identify patients at risk of SO. Further work is needed to confirm the contribution of factors associated with SO among the population overtime or in randomized controlled trials to demonstrate causality.
Collapse
Affiliation(s)
- A Pinel
- University of Clermont Auvergne, Human Nutrition Unit, INRAe, CRNH Auvergne, Clermont-Ferrand, France.
| | - C Guillet
- University of Clermont Auvergne, Human Nutrition Unit, INRAe, CRNH Auvergne, Clermont-Ferrand, France.
| | - F Capel
- University of Clermont Auvergne, Human Nutrition Unit, INRAe, CRNH Auvergne, Clermont-Ferrand, France
| | - M Pouget
- CHU Clermont-Ferrand, Clinical Nutrition Department, Clermont-Ferrand, France.
| | - M De Antonio
- CHU Clermont-Ferrand, Biostatistics Unit, Clermont-Ferrand, France.
| | - B Pereira
- CHU Clermont-Ferrand, Biostatistics Unit, Clermont-Ferrand, France.
| | - E Topinkova
- Department of Geriatrics, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic.
| | - D Eglseer
- Institute of Nursing Science, Medical University of Graz, Graz, Austria.
| | - R Barazzoni
- Department of Medical, Surgical and Health Sciences, University of Trieste, Italy.
| | | | - J D Schoufour
- Center of Expertise Urban Vitality, Amsterdam University of Applied Sciences, Amsterdam, the Netherlands.
| | - P J M Weijs
- Center of Expertise Urban Vitality, Amsterdam University of Applied Sciences, Amsterdam, the Netherlands; Amsterdam University Medical Centers, Amsterdam Public Health Institute, VU University, Department of Nutrition and Dietetics, Amsterdam, the Netherlands.
| | - Y Boirie
- University of Clermont Auvergne, Human Nutrition Unit, INRAe, CRNH Auvergne, Clermont-Ferrand, France; CHU Clermont-Ferrand, Clinical Nutrition Department, Clermont-Ferrand, France.
| |
Collapse
|
3
|
Ra Y, Chang I, Kim J. Discriminant analysis of ecological factors influencing sarcopenia in older people in South Korea. Front Public Health 2024; 12:1346315. [PMID: 38864021 PMCID: PMC11165097 DOI: 10.3389/fpubh.2024.1346315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 05/14/2024] [Indexed: 06/13/2024] Open
Abstract
This study aimed to investigate the ecological system factors that influence discrimination of sarcopenia among older individuals living in contemporary society. Data analysis included information from 618 older adults individuals aged 65 years or older residing in South Korea. To assess variations in ecological system factors related to SARC-F scores, we conducted correlation analysis and t-tests. Discriminant analysis was used to identify factors contributing to group discrimination. The key findings are summarized as follows. First, significant differences at the p < 0.001 level were observed between the SARC-F score groups in various aspects, including attitudes toward life, wisdom in life, health management, social support, media availability, sports environment, collectivist values, and values associated with death. Further, service environment differences were significant at p < 0.01 level, while social belonging and social activities exhibited significance at p < 0.05. Second, factors influencing group discrimination based on the SARC-F scores were ranked in the following order: health management, attitudes toward life, fear of own death, wisdom in life, physical environment, sports environment, media availability, social support, fear of the own dying, collectivist values, service environment, social activities, and social belonging. Notably, the SARC-F tool, which is used for sarcopenia discrimination, primarily concentrates on physical functioning and demonstrates relatively low sensitivity. Therefore, to enhance the precision of sarcopenia discrimination within a score-based group discrimination process, it is imperative to incorporate ecological system factors that exert a significant influence. These modifications aimed to enhance the clarity and precision of the text in an academic context.
Collapse
Affiliation(s)
- Yoonho Ra
- Institute of Human Convergence Health Science, Gachon University, Incheon, Republic of Korea
| | - Ikyoung Chang
- Department of Sport Coaching, Korea National Sport University, Seoul, Republic of Korea
| | - Jiyoun Kim
- Department of Exercise Rehabilitation, Gachon University, Incheon, Republic of Korea
| |
Collapse
|
4
|
Luo Y, Wang Y, Tang S, Xu L, Zhao X, Han M, Liu Y, Xu Y, Han B. Prevalence of sarcopenic obesity in the older non-hospitalized population: a systematic review and meta-analysis. BMC Geriatr 2024; 24:357. [PMID: 38649825 PMCID: PMC11036751 DOI: 10.1186/s12877-024-04952-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 04/05/2024] [Indexed: 04/25/2024] Open
Abstract
BACKGROUND Sarcopenic obesity emerges as a risk factor for adverse clinical outcomes in non-hospitalized older adults, including physical disabilities, metabolic diseases, and even mortality. In this systematic review and meta-analysis, we investigated the overall SO prevalence in non-hospitalized adults aged ≥ 65 years and assessed the sociodemographic, clinicobiological, and lifestyle factors related to SO. METHODS We searched the PubMed, Embase, Cochrane Library, and Web of Science databases for studies reporting the prevalence of SO from database inception to October 2023. Two researchers independently screened the literature, evaluated the study quality, and extracted the data. Both fixed- and random-effects models were used in the meta-analysis to estimate the pooled SO prevalence and perform subgroup analyses. Publication and sensitivity bias analyses were performed to test the robustness of the associations. RESULTS Among 46 studies eligible for review and a total of 71,757 non-hospitalized older adults, the combined prevalence of SO was 14% (95% CI:11-17%, I2 = 99.5%, P < 0.01). Subgroup analysis according to lifestyle factors demonstrated that the SO prevalence was 17% (95% CI: 8-29%, I2 = 99.5%, P < 0.01) in older adults without exercise habits. Regarding clinicobiological factors, older adults with a history of falls (15% [95% CI: 10-22%, I2 = 82%, P < 0.01]), two or more chronic diseases (19% [95% CI: 10-29%, I2 = 97%, P < 0.01]), functional impairment (33% [95% CI: 29-37%, I2 = 0%, P = 0.95]), cognitive impairment (35% [95% CI: 9-65%, I2 = 83%, P = 0.02]), osteoporosis (20% [95% CI: 8-35%, I2 = 96%, P < 0.01]), high fasting glucose level (17% [95% CI: 1-49%, I2 = 98%, P < 0.01]), or the use of antipsychotics (13% [95% CI: 2-28%, I2 = 0%, P = 0.32]) exhibited a higher SO prevalence. CONCLUSION SO prevalence is high among non-hospitalized older adults, especially those with functional and cognitive impairments. Thus, SO is a potential problem for the aging population; implementation of planned interventions in the community is needed to reduce the prevalence and adverse outcomes of SO.
Collapse
Affiliation(s)
- Yuhong Luo
- School of Nursing, Capital Medical University, Beijing, China
- Xuanwu Hospital, Capital Medical University, No 45., Changchun Street, Xicheng District, 100055, Beijing, China
| | - Yanqiu Wang
- School of Nursing, Capital Medical University, Beijing, China
- Xuanwu Hospital, Capital Medical University, No 45., Changchun Street, Xicheng District, 100055, Beijing, China
| | - Shuao Tang
- School of Nursing, Capital Medical University, Beijing, China
- Xuanwu Hospital, Capital Medical University, No 45., Changchun Street, Xicheng District, 100055, Beijing, China
| | - Ludan Xu
- School of Nursing, Capital Medical University, Beijing, China
- Xuanwu Hospital, Capital Medical University, No 45., Changchun Street, Xicheng District, 100055, Beijing, China
| | - Xinyu Zhao
- School of Nursing, Capital Medical University, Beijing, China
- Xuanwu Hospital, Capital Medical University, No 45., Changchun Street, Xicheng District, 100055, Beijing, China
| | - Mengya Han
- School of Nursing, Capital Medical University, Beijing, China
- Xuanwu Hospital, Capital Medical University, No 45., Changchun Street, Xicheng District, 100055, Beijing, China
| | - Yuhua Liu
- School of Nursing, Capital Medical University, Beijing, China
- Xuanwu Hospital, Capital Medical University, No 45., Changchun Street, Xicheng District, 100055, Beijing, China
| | - Yan Xu
- School of Nursing, Capital Medical University, Beijing, China
- Xuanwu Hospital, Capital Medical University, No 45., Changchun Street, Xicheng District, 100055, Beijing, China
| | - Binru Han
- School of Nursing, Capital Medical University, Beijing, China.
- Xuanwu Hospital, Capital Medical University, No 45., Changchun Street, Xicheng District, 100055, Beijing, China.
| |
Collapse
|
5
|
Kim S, Hong KH. Sex-Specific Effects of Dietary Factors on Sarcopenic Obesity in Korean Elderly: A Nationwide Cross-Sectional Study. Nutrients 2024; 16:1175. [PMID: 38674866 PMCID: PMC11054115 DOI: 10.3390/nu16081175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/04/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024] Open
Abstract
This study aimed to compare the dietary factors related to sarcopenia and obesity status in 5458 elderly individuals (2391 men and 3076 women) aged ≥65 years from the Korean National Health and Nutrition Examination Survey (2016-2019). Participants were categorized into normal, sarcopenia, obesity, and sarcopenic obesity groups. Sarcopenic obesity showed a higher prevalence of diabetes and lower HDL cholesterol levels compared to obesity. Sarcopenic obesity exhibited a lower total KHEI score and lower adequacy, including meat/fish/eggs/beans, than normal or obesity. In women, sarcopenic obesity scored lower than obesity on the total KHEI, adequacy for most foods, and balance of energy intake, and lower than sarcopenia on the adequacy of breakfast and milk/milk products. Sarcopenic obesity showed no significant difference in energy intake compared to sarcopenia, and less physical activity compared to sarcopenia and obesity, with a BMI/waist circumference comparable to that of obesity. Low total KHEI scores and scores for meat/fish/eggs/beans were most closely associated with sarcopenia in men and with sarcopenic obesity in women. In conclusion, low dietary quality and inadequate protein-rich foods are possibly associated with the prevalence of sarcopenic obesity in elderly Koreans, especially in women. Adequate energy intake and dietary diversity may be effective in managing sarcopenic obesity.
Collapse
Affiliation(s)
- Soojeong Kim
- Department of Health Administration, Dongseo University, Busan 47011, Republic of Korea;
| | - Kyung Hee Hong
- Department of Food Science and Nutrition, Dongseo University, Busan 47011, Republic of Korea
| |
Collapse
|
6
|
Kim S, Kim S, Hong KH. Association of Combining Diet and Physical Activity on Sarcopenia and Obesity in Elderly Koreans with Diabetes. Nutrients 2024; 16:964. [PMID: 38612998 PMCID: PMC11013649 DOI: 10.3390/nu16070964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 03/23/2024] [Accepted: 03/25/2024] [Indexed: 04/14/2024] Open
Abstract
This study aimed to identify the combined factors of physical activity and diet associated with non-sarcopenic non-obese status in 1586 diabetic patients aged ≥65 years from the Korean National Health and Nutrition Examination Survey (2016 to 2019). Participants were categorized into non-sarcopenic non-obesity (NSNO), sarcopenia non-obesity (SNO), non-sarcopenic obesity (NSO), and sarcopenic obesity (SO) groups. NSNO had lower insulin, HOMA-IR, and triglycerides compared to NSO and SO. NSNO had lower perceived stress, higher nutrition education and dietary supplement intake. As assessed by the Korean Healthy Eating Index, NSNO scored higher total than SNO and SO, in breakfast and energy balance compared to SO, and in the adequacy of vegetables and meat/fish/egg/bean compared to SNO. NSNO had significantly higher energy and protein intake and physical activity, with BMI/waist circumference lower than NSO, SO, and comparable to SNO. Physical activity was positively associated with NSNO. Low Total KHEI score and protein intake level reduced the odds ratio (OR) of NSNO, particularly when physical activity was insufficient, with OR = 0.38 for KHEI Q1 and OR = 0.32 for protein T1. In conclusion, physical activity, diet quality, and protein intake are associated with NSNO prevalence in Korean elderly with diabetes, and energy balance through active intake and expenditure may be effective.
Collapse
Affiliation(s)
- Sohye Kim
- Nutrition Care Services, Seoul National University of Bundang Hospital, Seongnam 13620, Republic of Korea;
| | - Soojeong Kim
- Department of Health Administration, Dongseo University, Busan 47011, Republic of Korea;
| | - Kyung Hee Hong
- Department of Food Science and Nutrition, Dongseo University, Busan 47011, Republic of Korea
| |
Collapse
|
7
|
Cao M, Yang B, Tang Y, Wang C, Yin L. Effects of low-volume functional and running high-intensity interval training on physical fitness in young adults with overweight/obesity. Front Physiol 2024; 15:1325403. [PMID: 38357496 PMCID: PMC10864534 DOI: 10.3389/fphys.2024.1325403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Accepted: 01/16/2024] [Indexed: 02/16/2024] Open
Abstract
Objectives: This study examined and compared the effects of functional and running high-intensity interval training (HIIT) on body composition, cardiorespiratory fitness, and muscular fitness of young adults with overweight or obesity. Methods: Forty-five participants (22.1 ± 2.1 years, BMI = 25.2 ± 1.0 kg/m2) were assigned to functional HIIT (HIIT-F; n = 15), running HIIT (HIIT-R; n = 15), or non-training control group (CON; n = 15). Participants in HIIT-F and HIIT-R performed functional exercise based-HIIT (four sets of all-out whole-body exercises including jumping jacks, squats, twist jumps and mountain climbers, et al.) and running HIIT (four sets of running on a treadmill) for 12 weeks, respectively. Body composition, muscular fitness, and cardiorespiratory fitness were assessed pre and post intervention. Results: Both HIIT-F and HIIT-R significantly improved the body composition and cardiorespiratory fitness, with HIIT-F induced greater improvements in lean mass (+1.623 vs. -1.034 kg, p < 0.001), back strength (+6.007 vs. +3.333 kg, p < 0.01), and push-ups (+5.692 vs. 1.923 reps, p < 0.001) than that in HIIT-R. HIIT-R reduced more visceral fat area (VFA) (-11.416 vs. -4.338 cm2, p = 0.052) and induced similar improvement in cardiorespiratory fitness (VO2max, +2.192 vs. +2.885 mL/kg/min, p = 0.792) with HIIT-F. Conclusion: Twelve weeks of HIIT-R or HIIT-F improved physical fitness among young adults with overweight or obesity. Despite the similar impact on cardiorespiratory fitness, HIIT-F generates a better positive effect on muscular fitness relative to HIIT-R, which could be partly explained by the greater increase in lean mass after HIIT-F intervention.
Collapse
Affiliation(s)
- Meng Cao
- Sports College, Shenzhen University, Shenzhen, China
| | - Baiquan Yang
- Sports College, Shenzhen University, Shenzhen, China
| | - Yucheng Tang
- Sports College, Shenzhen University, Shenzhen, China
| | - Chun Wang
- School of Humanities and Social Sciences, The Chinese University of Hong Kong, Shenzhen, China
| | - Lijun Yin
- Sports College, Shenzhen University, Shenzhen, China
| |
Collapse
|
8
|
Li X, He J, Sun Q. Sleep Duration and Sarcopenia: An Updated Systematic Review and Meta-Analysis. J Am Med Dir Assoc 2023; 24:1193-1206.e5. [PMID: 37295459 DOI: 10.1016/j.jamda.2023.04.032] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 04/27/2023] [Accepted: 04/28/2023] [Indexed: 06/12/2023]
Abstract
OBJECTIVES In adults, short and long sleep duration has been associated with sarcopenia risk. Studies have shown that various factors, including biological and psychological factors, could be the underlying cause of the association between aberrant sleep duration and sarcopenia risk. In this study, we have qualitatively and quantitatively summarized previously published studies on sleep duration to assess the relationship between sleep duration and sarcopenia risk in adults. This would aid in enhancing our understanding of recent advancements in this field and the association between sleep duration and sarcopenia risk. DESIGN Systematic review and meta-analysis. SETTING AND PARTICIPANTS In this review, we included studies evaluating the association between the duration of sleep and sarcopenia in adults in observational studies. METHODS Five electronic databases (PubMed, EMBASE, Cochrane Library, China National Knowledge Infrastructure, and Web of Science) were searched to April 20, 2023, to identify studies related to sarcopenia and sleep duration. Next, we calculated the odds ratios (ORs) for sarcopenia prevalence based on the adjusted data from individual studies. Statistical analyses were performed using Stata 11.0. RESULTS Sarcopenia prevalence was high (18%) in adults with long sleep duration. Our results showed a significant association between short duration of sleep and high sarcopenia prevalence in older adults (OR 1.2, 95% CI 1.02-1.41, I2 = 56.6%). Furthermore, a significant association was observed between all participants with long-duration sleep and high sarcopenia prevalence (OR 1.53, 95% CI 1.34-1.75, I2 = 56.8%). We also observed significant heterogeneity in the adjusted ORs. CONCLUSIONS AND IMPLICATIONS There was a correlation between sarcopenia and short or long sleep duration, especially in older adults. In adults with a long duration of sleep, sarcopenia prevalence was relatively high.
Collapse
Affiliation(s)
- Xiaoyan Li
- School of Nursing, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jie He
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Chengdu Medical College, Chengdu, China
| | - Qiuhua Sun
- School of Nursing, Zhejiang Chinese Medical University, Hangzhou, China.
| |
Collapse
|
9
|
Kim J, Lee JY, Kim CY. A Comprehensive Review of Pathological Mechanisms and Natural Dietary Ingredients for the Management and Prevention of Sarcopenia. Nutrients 2023; 15:nu15112625. [PMID: 37299588 DOI: 10.3390/nu15112625] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 05/29/2023] [Accepted: 05/30/2023] [Indexed: 06/12/2023] Open
Abstract
Sarcopenia is characterized by an age-related loss of skeletal muscle mass and function and has been recognized as a clinical disease by the World Health Organization since 2016. Substantial evidence has suggested that dietary modification can be a feasible tool to combat sarcopenia. Among various natural dietary ingredients, the present study focused on botanical and marine extracts, phytochemicals, and probiotics. Aims of this review were (1) to provide basic concepts including the definition, diagnosis, prevalence, and adverse effects of sarcopenia, (2) to describe possible pathological mechanisms including protein homeostasis imbalance, inflammation, mitochondrial dysfunction, and satellite cells dysfunction, and (3) to analyze recent experimental studies reporting potential biological functions against sarcopenia. A recent literature review for dietary ingredients demonstrated that protein homeostasis is maintained via an increase in the PI3K/Akt pathway and/or a decrease in the ubiquitin-proteasome system. Regulation of inflammation has primarily targeted inhibition of NF-κB signaling. Elevated Pgc-1α or Pax7 expression reverses mitochondrial or satellite cell dysfunction. This review provides the current knowledge on dietary components with the potential to assist sarcopenia prevention and/or treatment. Further in-depth studies are required to elucidate the role of and develop various dietary materials for healthier aging, particularly concerning muscle health.
Collapse
Affiliation(s)
- Juhae Kim
- Research Institute of Human Ecology, Yeungnam University, Gyeongsan 38541, Gyeongbuk, Republic of Korea
| | - Joo-Yeon Lee
- Research Institute of Human Ecology, Yeungnam University, Gyeongsan 38541, Gyeongbuk, Republic of Korea
- Department of Food and Nutrition, Yeungnam University, Gyeongsan 38541, Gyeongbuk, Republic of Korea
| | - Choon Young Kim
- Research Institute of Human Ecology, Yeungnam University, Gyeongsan 38541, Gyeongbuk, Republic of Korea
- Department of Food and Nutrition, Yeungnam University, Gyeongsan 38541, Gyeongbuk, Republic of Korea
| |
Collapse
|