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Afsar B, Afsar RE, Caliskan Y, Lentine KL, Edwards JC. Renin angiotensin system-induced muscle wasting: putative mechanisms and implications for clinicians. Mol Cell Biochem 2025; 480:1935-1949. [PMID: 38811433 PMCID: PMC11961475 DOI: 10.1007/s11010-024-05043-8] [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: 02/25/2024] [Accepted: 05/22/2024] [Indexed: 05/31/2024]
Abstract
Renin angiotensin system (RAS) alters various mechanisms related to muscle wasting. The RAS system consists of classical and non-classical pathways, which mostly function differently. Classical RAS pathway, operates through angiotensin II (AngII) and angiotensin type 1 receptors, is associated with muscle wasting and sarcopenia. On the other hand, the non-classical RAS pathway, which operates through angiotensin 1-7 and Mas receptor, is protective against sarcopenia. The classical RAS pathway might induce muscle wasting by variety of mechanisms. AngII reduces body weight, via reduction in food intake, possibly by decreasing hypothalamic expression of orexin and neuropeptide Y, insulin like growth factor-1 (IGF-1) and mammalian target of rapamycin (mTOR), signaling, AngII increases skeletal muscle proteolysis by forkhead box transcription factors (FOXO), caspase activation and muscle RING-finger protein-1 transcription. Furthermore, AngII infusion in skeletal muscle reduces phospho-Bad (Ser136) expression and induces apoptosis through increased cytochrome c release and DNA fragmentation. Additionally, Renin angiotensin system activation through AT1R and AngII stimulates tumor necrosis factor-α, and interleukin-6 which induces muscle wasting, Last but not least classical RAS pathway, induce oxidative stress, disturb mitochondrial energy metabolism, and muscle satellite cells which all lead to muscle wasting and decrease muscle regeneration. On the contrary, the non-classical RAS pathway functions oppositely to mitigate these mechanisms and protects against muscle wasting. In this review, we summarize the mechanisms of RAS-induced muscle wasting and putative implications for clinical practice. We also emphasize the areas of uncertainties and suggest potential research areas.
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Affiliation(s)
- Baris Afsar
- Department of Nephrology, School of Medicine, Suleyman Demirel University, Isparta, Turkey.
- Division of Nephrology, School of Medicine, Saint Louis University, St. Louis, MO, USA.
| | - Rengin Elsurer Afsar
- Department of Nephrology, School of Medicine, Suleyman Demirel University, Isparta, Turkey
- Division of Nephrology, School of Medicine, Saint Louis University, St. Louis, MO, USA
| | - Yasar Caliskan
- Division of Nephrology, School of Medicine, Saint Louis University, St. Louis, MO, USA
| | - Krista L Lentine
- Division of Nephrology, School of Medicine, Saint Louis University, St. Louis, MO, USA
| | - John C Edwards
- Division of Nephrology, School of Medicine, Saint Louis University, St. Louis, MO, USA
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Qiu Y, Zhao F, Zheng X, Wang X. The association between dietary vitamins and the risk of sarcopenia in adults aged 20-59: a study based on the NHANES database. Front Nutr 2025; 12:1535190. [PMID: 40206945 PMCID: PMC11978620 DOI: 10.3389/fnut.2025.1535190] [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: 11/27/2024] [Accepted: 03/10/2025] [Indexed: 04/11/2025] Open
Abstract
Background Sarcopenia has emerged as a global health concern, but the association between dietary vitamin levels and sarcopenia is not elucidated. This study aims to shed light on the link of 11 dietary vitamins to the risk of sarcopenia in adults at the age of 20-59. Methods This cross-sectional study encompassed 2011-2018 data from the National Health and Nutrition Examination Survey (NHANES) for adults aged 20-59. Sarcopenia was defined through the appendicular lean mass to body mass index ratio calculated via Dual-Energy X-ray Absorptiometry (DXA), with sarcopenia determined as a ratio of <0.789 for the male and <0.512 for the female. Multivariate weighted logistic regression assisted in assessing the connection of dietary vitamins with sarcopenia, with results presented as odds ratios (ORs) and 95% confidence intervals (CIs). The dose-response association of various vitamins with sarcopenia was visualized through restricted cubic splines (RCS). Subgroup analyses were carried out to examine the consistency of the aforementioned associations. Sensitivity analysis was performed utilizing propensity score matching (PSM) to adjust for confounding factors and enhance the robustness of the results. Results Among the 7,864 participants, 677 (8.6%) had sarcopenia, and 7,187 (91.4%) did not. Multivariate weighted logistic regression and RCS analyses indicated that higher intakes of VA, VB1, VB2, VB3, VB6, VB9, VB12, VC, VE, and VK were notably linked to a lowered risk of sarcopenia (P < 0.05). Among these, VA, VC, and VE exhibited a non-linear negative association with sarcopenia risk (P for non-linear < 0.05), while VB1, VB2, VB3, VB6, VB9, VB12, and VK exhibited a linear negative association (P for non-linear > 0.05). Subgroup analysis yielded largely consistent results. After confounding factors were adjusted through PSM, the results suggest that the intake of VA, VB2, VB6, and VC remains significantly associated with a lowered risk of sarcopenia (P < 0.05). Conclusion Higher dietary levels of VA, VB2, VB6, and VC are significantly related to a lower livelihood of sarcopenia. These findings provide new evidence and insights for early dietary interventions aimed at preventing sarcopenia.
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Affiliation(s)
- Yu Qiu
- The Department of Clinical Nutrition, Nantong First People's Hospital, Nantong, Jiangsu, China
- The Department of Clinical Nutrition, Affiliated Hospital 2 of Nantong University, Nantong, Jiangsu, China
- The Department of Clinical Nutrition, Nantong Hospital of Renji Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Nantong, Jiangsu, China
| | - Fengyi Zhao
- The Department of Clinical Nutrition, Nantong First People's Hospital, Nantong, Jiangsu, China
- The Department of Clinical Nutrition, Affiliated Hospital 2 of Nantong University, Nantong, Jiangsu, China
- The Department of Clinical Nutrition, Nantong Hospital of Renji Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Nantong, Jiangsu, China
| | - Xiyin Zheng
- The Department of Clinical Nutrition, Nantong First People's Hospital, Nantong, Jiangsu, China
- The Department of Clinical Nutrition, Affiliated Hospital 2 of Nantong University, Nantong, Jiangsu, China
- The Department of Clinical Nutrition, Nantong Hospital of Renji Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Nantong, Jiangsu, China
| | - Xiaohua Wang
- The Department of Endocrinology and Metabolism, Nantong First People's Hospital, Nantong, Jiangsu, China
- The Department of Endocrinology and Metabolism, Affiliated Hospital 2 of Nantong University, Nantong, Jiangsu, China
- The Department of Endocrinology and Metabolism, Nantong Hospital of Renji Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Nantong, Jiangsu, China
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Liu L, Ding X, Zhang Y, Li T, Xu P, Ma Y, Xing H, Niu Q, Keerman M. Serum concentrations of different or multiple vitamins and Sarcopenia risk among US adults: insights from NHANES. BMC Public Health 2024; 24:3372. [PMID: 39633310 PMCID: PMC11616181 DOI: 10.1186/s12889-024-20897-9] [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: 02/07/2024] [Accepted: 11/28/2024] [Indexed: 12/07/2024] Open
Abstract
BACKGROUND The relationship between serum concentrations of different or multiple vitamins and sarcopenia remains underexplored. This investigation evaluates potential links between serum concentrations of different or multiple vitamins and sarcopenia prevalence among adults in the United States. METHODS Utilizing a cross-sectional design, this research draws from the National Health and Nutrition Examination Survey (NHANES) dataset of 2003-2006, encompassing 5,060 participants with comprehensive serum vitamin A, E, B9, B12, C, and D concentrations, alongside sarcopenia and covariate measurements. Participant stratification into distinct vitamin co-exposure clusters was achieved through K-means clustering. Analytical models, including weighted logistic regression, restricted cubic splines (RCS), weighted quantile sum regression (WQS), quantile g-computation (Q-gcomp), and Bayesian kernel machine regression (BKMR), were employed to evaluate the association between serum concentrations of different or multiple vitamins and sarcopenia risk, with an emphasis on nonlinearity. RESULTS In this study, sarcopenia was detected in 681 individuals (13.46%). Logistic regression results did not demonstrate any linear association between individual vitamin levels and sarcopenia risk (PFDR > 0.05). Contrastingly, the RCS model unveiled significant non-linear relationships for vitamins A and D (P_non-linear < 0.05). The K-means clustering results showed that participants in high-level vitamin exposure group had lower sarcopenia risk compared with those in low-level vitamin exposure group (OR (95% CI): 0.582 (0.397, 0.852)). Additionally, higher serum concentrations of different or multiple vitamins correlated inversely with sarcopenia risk (P_trend = 0.002). This inverse association was corroborated by WQS, Q-gcomp, and theBKMR models and remained consistent upon sensitivity analysis. CONCLUSIONS This study elucidates an inverse correlation between serum concentrations of different or multiple vitamins and sarcopenia risk, emphasizing a non-linear association, particularly with suboptimal vitamin D concentrations. Given the limitations of the NHANES study, further researches are required to clarify the existence of these relationships.
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Affiliation(s)
- Li Liu
- Department of Preventive Medicine, School of Medicine, Shihezi University, North 2th Road, Shihezi, 832000, Xinjiang, People's Republic of China
- Key Laboratory for Prevention and Control of Emerging Infectious Diseases and Public Health Security, the Xinjiang Production and Construction Corps, Shihezi, Xinjiang, People's Republic of China
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases (Ministry of Education), School of Medicine, Shihezi University, Shihezi, Xinjiang, People's Republic of China
- NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, (First Affiliated Hospital, School of Medicine Shihezi University), Shihezi, Xinjiang, People's Republic of China
| | - Xueman Ding
- Department of Preventive Medicine, School of Medicine, Shihezi University, North 2th Road, Shihezi, 832000, Xinjiang, People's Republic of China
- Key Laboratory for Prevention and Control of Emerging Infectious Diseases and Public Health Security, the Xinjiang Production and Construction Corps, Shihezi, Xinjiang, People's Republic of China
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases (Ministry of Education), School of Medicine, Shihezi University, Shihezi, Xinjiang, People's Republic of China
- NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, (First Affiliated Hospital, School of Medicine Shihezi University), Shihezi, Xinjiang, People's Republic of China
| | - Yue Zhang
- Department of Preventive Medicine, School of Medicine, Shihezi University, North 2th Road, Shihezi, 832000, Xinjiang, People's Republic of China
- Key Laboratory for Prevention and Control of Emerging Infectious Diseases and Public Health Security, the Xinjiang Production and Construction Corps, Shihezi, Xinjiang, People's Republic of China
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases (Ministry of Education), School of Medicine, Shihezi University, Shihezi, Xinjiang, People's Republic of China
- NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, (First Affiliated Hospital, School of Medicine Shihezi University), Shihezi, Xinjiang, People's Republic of China
| | - Tingting Li
- Department of Preventive Medicine, School of Medicine, Shihezi University, North 2th Road, Shihezi, 832000, Xinjiang, People's Republic of China
- Key Laboratory for Prevention and Control of Emerging Infectious Diseases and Public Health Security, the Xinjiang Production and Construction Corps, Shihezi, Xinjiang, People's Republic of China
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases (Ministry of Education), School of Medicine, Shihezi University, Shihezi, Xinjiang, People's Republic of China
- NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, (First Affiliated Hospital, School of Medicine Shihezi University), Shihezi, Xinjiang, People's Republic of China
| | - Panpan Xu
- Department of Preventive Medicine, School of Medicine, Shihezi University, North 2th Road, Shihezi, 832000, Xinjiang, People's Republic of China
- Key Laboratory for Prevention and Control of Emerging Infectious Diseases and Public Health Security, the Xinjiang Production and Construction Corps, Shihezi, Xinjiang, People's Republic of China
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases (Ministry of Education), School of Medicine, Shihezi University, Shihezi, Xinjiang, People's Republic of China
- NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, (First Affiliated Hospital, School of Medicine Shihezi University), Shihezi, Xinjiang, People's Republic of China
| | - Yue Ma
- Department of Preventive Medicine, School of Medicine, Shihezi University, North 2th Road, Shihezi, 832000, Xinjiang, People's Republic of China
- Key Laboratory for Prevention and Control of Emerging Infectious Diseases and Public Health Security, the Xinjiang Production and Construction Corps, Shihezi, Xinjiang, People's Republic of China
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases (Ministry of Education), School of Medicine, Shihezi University, Shihezi, Xinjiang, People's Republic of China
- NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, (First Affiliated Hospital, School of Medicine Shihezi University), Shihezi, Xinjiang, People's Republic of China
| | - Hengrui Xing
- Department of Preventive Medicine, School of Medicine, Shihezi University, North 2th Road, Shihezi, 832000, Xinjiang, People's Republic of China
- Key Laboratory for Prevention and Control of Emerging Infectious Diseases and Public Health Security, the Xinjiang Production and Construction Corps, Shihezi, Xinjiang, People's Republic of China
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases (Ministry of Education), School of Medicine, Shihezi University, Shihezi, Xinjiang, People's Republic of China
- NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, (First Affiliated Hospital, School of Medicine Shihezi University), Shihezi, Xinjiang, People's Republic of China
| | - Qiang Niu
- Department of Preventive Medicine, School of Medicine, Shihezi University, North 2th Road, Shihezi, 832000, Xinjiang, People's Republic of China.
- Key Laboratory for Prevention and Control of Emerging Infectious Diseases and Public Health Security, the Xinjiang Production and Construction Corps, Shihezi, Xinjiang, People's Republic of China.
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases (Ministry of Education), School of Medicine, Shihezi University, Shihezi, Xinjiang, People's Republic of China.
- NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, (First Affiliated Hospital, School of Medicine Shihezi University), Shihezi, Xinjiang, People's Republic of China.
| | - Mulatibieke Keerman
- Department of Preventive Medicine, School of Medicine, Shihezi University, North 2th Road, Shihezi, 832000, Xinjiang, People's Republic of China.
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Mortensen C, Beck AM, Tetens I, Jeppesen C, Jørgensen SF, Nielsen LK, Kristensen M. Vitamin D Status and Physical Functioning in Nursing Home Residents after Improved Adherence to the Vitamin D and Calcium Recommendation-A Quasiexperimental Study. J Nutr Metab 2024; 2024:2405429. [PMID: 39398329 PMCID: PMC11470817 DOI: 10.1155/2024/2405429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 05/17/2024] [Accepted: 08/22/2024] [Indexed: 10/15/2024] Open
Abstract
Introduction Dietary supplements with vitamin and calcium are recommended to nursing home residents in Denmark, but adherence to the recommendation is low. In a previous part of this study, we reported improved adherence by means of The Model for Improvement leading to increased awareness and change of workflows at two nursing homes. However, potential effects of this improved adherence are unknown. Objective The objective of this substudy was to investigate if the improved adherence to the recommendation affected vitamin D status, muscle strength, and physical functioning of the residents. Methods This was a 20-week quasiexperimental study involving 40 residents from two Danish nursing homes. Baseline and endpoint measurements took place in October 2021 and March 2022, respectively. Outcomes were number of residents taking vitamin D and calcium supplements; vitamin D status; handgrip strength; and physical functioning with timed-up-and-go test and 30-second chair stand test. Results Prevalence of vitamin D supplement users increased from 45 to 78% (mean dose 41 μg) and of calcium supplement users from 40 to 72% (mean dose 769 mg) (both P=0.002). Among those having blood sampled at both baseline and endpoint (n = 30), mean vitamin D status increased from 66.6 ± 31.7 nmol/L to 82.8 ± 26.3 nmol/L (P < 0.001), and more residents were vitamin D sufficient at endpoint (90 vs. 63%, P=0.021). Endpoint vitamin D status among supplement users was 88.2 ± 22.2 nmol/L, which was higher compared to nonsupplement users (55.3 ± 30.4 nmol/L, P < 0.01). No effects were seen on muscle strength or physical functioning. Conclusions Increased supplementation with vitamin D using The Model for Improvement positively affected vitamin D status and prevalence of vitamin D sufficiency but did not affect muscle strength or physical functioning. Longer-term studies involving more residents are needed to investigate effects of improved adherence on these outcomes. This trial is registered with NCT04956705.
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Affiliation(s)
- Charlotte Mortensen
- Department of Nursing and NutritionFaculty of HealthUniversity College Copenhagen, Copenhagen, Denmark
| | - Anne Marie Beck
- Dietetic and Nutritional Research UnitHerlev Gentofte Hospital, Hellerup, Denmark
| | - Inge Tetens
- Department of Nutrition, Exercise and SportsFaculty of ScienceUniversity of Copenhagen, Copenhagen, Denmark
| | - Charlotte Jeppesen
- Department of Nursing and NutritionFaculty of HealthUniversity College Copenhagen, Copenhagen, Denmark
| | - Søren Frank Jørgensen
- Department of TechnologyFaculty of HealthUniversity College Copenhagen, Copenhagen, Denmark
| | - Leif Kofoed Nielsen
- Department of TechnologyFaculty of HealthUniversity College Copenhagen, Copenhagen, Denmark
| | - Michael Kristensen
- Department of Nursing and NutritionFaculty of HealthUniversity College Copenhagen, Copenhagen, Denmark
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Singh A, Buckholz A, Kumar S, Newberry C. Implications of Protein and Sarcopenia in the Prognosis, Treatment, and Management of Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD). Nutrients 2024; 16:658. [PMID: 38474786 DOI: 10.3390/nu16050658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 02/22/2024] [Accepted: 02/23/2024] [Indexed: 03/14/2024] Open
Abstract
Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD) is a common cause of chronic liver disease globally, with prevalence rapidly increasing in parallel with rising rates of obesity and metabolic syndrome. MASLD is defined by the presence of excess fat in the liver, which may induce inflammatory changes and subsequent fibrosis in high-risk patients. Though MASLD occurs frequently, there is still no approved pharmacological treatment, and the mainstay of therapy remains lifestyle modification via dietary changes, enhancement of physical activity, and management of metabolic comorbidities. Most nutrition research and clinical guidance in this disease centers on the reduction in fructose and saturated fat in the diet, although the emerging literature suggests that protein supplementation is important and implicates muscle mass and sarcopenia in disease-related outcomes. This review will assess the current data on these topics, with the goal of defining best practices and identifying research gaps in care.
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Affiliation(s)
- Avneet Singh
- Department of Medicine, Cooper University Hospital, Camden, NJ 08103, USA
| | - Adam Buckholz
- Division of Gastroenterology, Weill Cornell Medical Center, New York, NY 10065, USA
| | - Sonal Kumar
- Division of Gastroenterology, Weill Cornell Medical Center, New York, NY 10065, USA
| | - Carolyn Newberry
- Division of Gastroenterology, Weill Cornell Medical Center, New York, NY 10065, USA
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Tack W, De Cock AM, Dirinck EL, Bastijns S, Ariën F, Perkisas S. Pathophysiological interactions between sarcopenia and type 2 diabetes: A two-way street influencing diagnosis and therapeutic options. Diabetes Obes Metab 2024; 26:407-416. [PMID: 37854007 DOI: 10.1111/dom.15321] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 09/24/2023] [Accepted: 09/25/2023] [Indexed: 10/20/2023]
Abstract
This review will try to elucidate the interconnected pathophysiology of sarcopenia and type 2 diabetes (T2D) and will try to identify a common pathway to explain their development. To this end, the PubMed and Scopus databases were searched for articles published about the underlying pathophysiology, diagnosis and treatment of both sarcopenia and T2D. The medical subject heading (MeSH) terms 'sarcopenia' AND 'diabetes mellitus' AND ('physiopathology' OR 'diagnosis' OR 'therapeutics' OR 'aetiology' OR 'causality') were used. After screening, 32 papers were included. It was evident that sarcopenia and T2D share multiple pathophysiological mechanisms. Common changes in muscle architecture consist of a shift in myocyte composition, increased myosteatosis and a decreased capacity for muscle regeneration. Further, both diseases are linked to an imbalance in myokine and sex hormone production. Chronic low-grade inflammation and increased levels of oxidative stress are also known pathophysiological contributors. In the future, research efforts should be directed towards discovering common checkpoints in the development of T2D and sarcopenia as possible shared therapeutic targets for both diseases. Current treatment for T2D with biguanides, incretins and insulin may already convey a protective effect on the development of sarcopenia. Furthermore, attention should be given to early diagnosis of sarcopenia within the population of people with T2D, given the sizeable physical and medical burden it encompasses. A combination of simple diagnostic techniques could be used at regular diabetes check-ups to identify sarcopenia at an early stage and start lifestyle modifications and treatment as soon as possible.
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Affiliation(s)
- Wouter Tack
- ZNA (ZiekenhuisNetwerk Antwerpen), University Center for Geriatrics, Antwerp, Belgium
| | - Anne-Marie De Cock
- ZNA (ZiekenhuisNetwerk Antwerpen), University Center for Geriatrics, Antwerp, Belgium
- Department of Family Medicine and Population Health, University of Antwerp, Antwerp, Belgium
| | - Eveline Lia Dirinck
- Department of Endocrinology, Diabetology and Metabolism, Anwerp University Hospital, Edegem, Belgium
| | - Sophie Bastijns
- ZNA (ZiekenhuisNetwerk Antwerpen), University Center for Geriatrics, Antwerp, Belgium
| | - Femke Ariën
- ZNA (ZiekenhuisNetwerk Antwerpen), University Center for Geriatrics, Antwerp, Belgium
| | - Stany Perkisas
- ZNA (ZiekenhuisNetwerk Antwerpen), University Center for Geriatrics, Antwerp, Belgium
- Department of Family Medicine and Population Health, University of Antwerp, Antwerp, Belgium
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Kiuchi Y, Tsutsumimoto K, Doi T, Kurita S, Nishimoto K, Makizako H, Shimada H. Effect of dietary diversity on incident of disability in community-dwelling older adults with sarcopenia: A 40-month follow-up longitudinal study. Maturitas 2024; 179:107887. [PMID: 37980814 DOI: 10.1016/j.maturitas.2023.107887] [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: 04/09/2023] [Revised: 09/17/2023] [Accepted: 11/08/2023] [Indexed: 11/21/2023]
Abstract
BACKGROUND Sarcopenia is a clinical issue in older adults that leads to serious adverse health outcomes, including disability. The present study investigated whether dietary diversity affects the incidence of disability in older adults with sarcopenia. METHOD Participants were 759 Japanese older adults with sarcopenia (mean age 77.2 ± 6.0 years; 44.4 % men) who were aged ≥65 years at the time of the examination. Sarcopenia was diagnosed according to the recommendations of the European Working Group on Sarcopenia in Older People 2. Dietary diversity was assessed using a diet variety score. This diet variety score assessed the one-week consumption frequency of ten food groups, according to the following responses: "eat almost every day" (1 point), or "not eaten almost daily" (0 points). Older adults with a diet variety score of 3 or more points were defined as having high dietary diversity. Incident disability was certified by long-term care insurance (mean follow-up duration 32 months). RESULTS The cumulative disability incidence rates in the older adults with low dietary diversity and high dietary diversity were 23.3 % and 16.9 %, respectively. Cox proportional hazards regression analysis revealed high dietary diversity was associated with a lower risk of incident disability in older adults with sarcopenia (hazard ratio 0.66, 95 % confidence interval 0.47-0.92; p = 0.015), after adjusting for covariates. CONCLUSIONS This longitudinal study revealed that high dietary diversity is associated with a lower risk of incident disability among sarcopenic Japanese older adults.
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Affiliation(s)
- Yuto Kiuchi
- Department of Preventive Gerontology, Center for Gerontology and Social Science, Research Institute, National Center for Geriatrics and Gerontology, 7-430, Morioka, Obu, Aichi 474-8511, Japan; Department of Health Science, Graduate School of Health Sciences Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima 890-8544, Japan.
| | - Kota Tsutsumimoto
- Department of Preventive Gerontology, Center for Gerontology and Social Science, Research Institute, National Center for Geriatrics and Gerontology, 7-430, Morioka, Obu, Aichi 474-8511, Japan
| | - Takehiko Doi
- Department of Preventive Gerontology, Center for Gerontology and Social Science, Research Institute, National Center for Geriatrics and Gerontology, 7-430, Morioka, Obu, Aichi 474-8511, Japan
| | - Satoshi Kurita
- Department of Preventive Gerontology, Center for Gerontology and Social Science, Research Institute, National Center for Geriatrics and Gerontology, 7-430, Morioka, Obu, Aichi 474-8511, Japan
| | - Kazuhei Nishimoto
- Department of Preventive Gerontology, Center for Gerontology and Social Science, Research Institute, National Center for Geriatrics and Gerontology, 7-430, Morioka, Obu, Aichi 474-8511, Japan; Department of Medical Sciences, Medical Science Division, Graduate School of Medicine, Science and Technology, Shinshu University, 3-1-1, Matsumoto, Nagano 390-0802, Japan
| | - Hyuma Makizako
- Department of Physical Therapy, Faculty of Medicine, School of Health Sciences, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima 890-8544, Japan
| | - Hiroyuki Shimada
- Department of Preventive Gerontology, Center for Gerontology and Social Science, Research Institute, National Center for Geriatrics and Gerontology, 7-430, Morioka, Obu, Aichi 474-8511, Japan
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Johri N, Vengat M, Kumar D, Nagar P, John D, Dutta S, Mittal P. A comprehensive review on the risks assessment and treatment options for Sarcopenia in people with diabetes. J Diabetes Metab Disord 2023; 22:995-1010. [PMID: 37975099 PMCID: PMC10638272 DOI: 10.1007/s40200-023-01262-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 07/03/2023] [Indexed: 11/19/2023]
Abstract
Objectives This comprehensive review aims to examine the reciprocal interplay between Type 2 diabetes mellitus (T2DM) and sarcopenia, identify prevailing research gaps, and discuss therapeutic approaches and measures to enhance healthcare practices within hospital settings. Methods A thorough literature review was conducted to gather relevant studies and articles on the relationship between T2DM and sarcopenia. Various databases were searched, including Google Scholar, PubMed, Scopus, and Science Direct databases. The search terms included T2DM, sarcopenia, inflammation, insulin resistance, advanced glycation end products, oxidative stress, muscle dimensions, muscle strength, muscle performance, aging, nutrition, hormone levels, and physical activity. The collected articles were critically analysed to extract key findings and identify gaps in current research. Results The prevalence and incidence of metabolic and musculoskeletal disorders, notably T2DM and sarcopenia, have surged in recent years. T2DM is marked by inflammation, insulin resistance, accumulation of advanced glycation end products, and oxidative stress, while sarcopenia involves a progressive decline in skeletal muscle mass and function. The review underscores the age-related correlation between sarcopenia and adverse outcomes like fractures, falls, and mortality. Research gaps regarding optimal nutritional interventions for individuals with T2DM and sarcopenia are identified, emphasizing the necessity for further investigation in this area. Conclusions The reciprocal interplay between T2DM and sarcopenia holds significant importance. Further research is warranted to address knowledge gaps, particularly in utilizing precise measurement tools during clinical trials. Lifestyle modifications appear beneficial for individuals with T2DM and sarcopenia. Additionally, practical nutritional interventions require investigation to optimize healthcare practices in hospital settings. Supplementary Information The online version contains supplementary material available at 10.1007/s40200-023-01262-w.
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Affiliation(s)
- Nishant Johri
- Department of Pharmacy Practice, Teerthanker Mahaveer College of Pharmacy, Moradabad, Uttar Pradesh India
| | | | - Deepanshu Kumar
- Department of Pharmacy Practice, Teerthanker Mahaveer College of Pharmacy, Moradabad, Uttar Pradesh India
| | - Priya Nagar
- Department of Pharmacy Practice, Teerthanker Mahaveer College of Pharmacy, Moradabad, Uttar Pradesh India
| | - Davis John
- Department of Pharmacy Practice, Teerthanker Mahaveer College of Pharmacy, Moradabad, Uttar Pradesh India
| | - Shubham Dutta
- Department of Pharmacy Practice, Teerthanker Mahaveer College of Pharmacy, Moradabad, Uttar Pradesh India
| | - Piyush Mittal
- Department of Pharmacy Practice, Teerthanker Mahaveer College of Pharmacy, Moradabad, Uttar Pradesh India
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Sha T, Wang Y, Zhang Y, Lane NE, Li C, Wei J, Zeng C, Lei G. Genetic Variants, Serum 25-Hydroxyvitamin D Levels, and Sarcopenia: A Mendelian Randomization Analysis. JAMA Netw Open 2023; 6:e2331558. [PMID: 37647062 PMCID: PMC10469287 DOI: 10.1001/jamanetworkopen.2023.31558] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 07/24/2023] [Indexed: 09/01/2023] Open
Abstract
Importance Vitamin D deficiency is commonly associated with sarcopenia; however, the latest International Clinical Practice Guidelines for Sarcopenia do not recommend vitamin D supplementation for sarcopenia owing to a lack of an apparent therapeutic effect on the indices of sarcopenia among participants with replete vitamin D concentration (ie, 25-hydroxyvitamin D [25(OH)D] level >20 ng/mL) from randomized clinical trials. While there is consensus in all vitamin D guidelines that serum levels of 25(OH)D less than 10 ng/mL should be corrected, approximately 30% of the world population's 25(OH)D levels range from 10 to 20 ng/mL, and it remains unclear whether such suboptimal levels can maintain optimal health, including sarcopenia risk. Objective To investigate the association of serum 25(OH)D level, especially suboptimal levels, with sarcopenia risk. Design, Setting, and Participants This genome-wide genetic association study was performed from August 2022 to February 2023 among the 295 489 unrelated European participants from the UK Biobank (2006-2010). Nonlinear and standard mendelian randomization analyses were used to examine the association of serum 25(OH)D concentration with sarcopenia risk. Exposures A weighted genetic risk score using 35 unrelated single-nucleotide variants from the UK Biobank and weights from the SUNLIGHT Consortium was selected as an instrumental variable for serum 25(OH)D concentration. Main Outcomes and Measures The primary outcome was sarcopenia, and the secondary outcomes consisted of grip strength, appendicular lean mass index, and gait speed. Results The final genetic analyses included 295 489 participants (mean [SD] age, 56.3 [8.1] years; 139 216 female [52.9%]). There was an L-shaped association between genetically predicted serum 25(OH)D concentration and sarcopenia risk. The risk of sarcopenia decreased rapidly as 25(OH)D concentration increased until 20 ng/mL and then leveled off. The odds ratio of sarcopenia for serum 25(OH)D level of 10 vs 20 ng/mL was 1.74 (95% CI, 1.17-2.59). Similar patterns were also observed when the association between serum 25(OH)D concentration and risks of each of the sarcopenia indices were evaluated. Conclusions and Relevance In this mendelian randomization genetic association study of adults in the UK Biobank, the findings supported a nonlinear association between suboptimal 25(OH)D levels and sarcopenia risk. Randomized clinical trials among participants with suboptimal 25(OH)D levels are required to verify the potential causality.
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Affiliation(s)
- Tingting Sha
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Joint Degeneration and Injury, Changsha, China
- Key Laboratory of Aging-related Bone and Joint Diseases Prevention and Treatment, Ministry of Education, Changsha, China
| | - Yilun Wang
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Joint Degeneration and Injury, Changsha, China
- Key Laboratory of Aging-related Bone and Joint Diseases Prevention and Treatment, Ministry of Education, Changsha, China
| | - Yuqing Zhang
- Division of Rheumatology, Allergy, and Immunology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston
- The Mongan Institute, Massachusetts General Hospital, Harvard Medical School, Boston
| | - Nancy E. Lane
- Center for Musculoskeletal Health and Department of Medicine, University of California School of Medicine, Sacramento
| | - Changjun Li
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, China
| | - Jie Wei
- Hunan Key Laboratory of Joint Degeneration and Injury, Changsha, China
- Key Laboratory of Aging-related Bone and Joint Diseases Prevention and Treatment, Ministry of Education, Changsha, China
- Health Management Center, Xiangya Hospital, Central South University, Changsha, China
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, China
| | - Chao Zeng
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Joint Degeneration and Injury, Changsha, China
- Key Laboratory of Aging-related Bone and Joint Diseases Prevention and Treatment, Ministry of Education, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Guanghua Lei
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Joint Degeneration and Injury, Changsha, China
- Key Laboratory of Aging-related Bone and Joint Diseases Prevention and Treatment, Ministry of Education, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
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10
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Liu S, Zhang L, Li S. Advances in nutritional supplementation for sarcopenia management. Front Nutr 2023; 10:1189522. [PMID: 37492597 PMCID: PMC10365293 DOI: 10.3389/fnut.2023.1189522] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Accepted: 06/20/2023] [Indexed: 07/27/2023] Open
Abstract
Sarcopenia is a syndrome characterized by a decline in muscular mass, strength, and function with advancing age. The risk of falls, fragility, hospitalization, and death is considerably increased in the senior population due to sarcopenia. Although there is no conclusive evidence for drug treatment, resistance training has been unanimously recognized as a first-line treatment for managing sarcopenia, and numerous studies have also pointed to the combination of nutritional supplementation and resistance training as a more effective intervention to improve quality of life for people with sarcopenia. People with both malnutrition and sarcopenia have a higher mortality rate, so identifying people at risk of malnutrition and intervening early is extremely important to avoid sarcopenia and its associated problems. This article provides important information for dietary interventions in sarcopenia by summarizing the discoveries and developments of nutritional supplements such as protein, leucine, β-hydroxy-β-methylbutyric acid, vitamin D, vitamin C, vitamin E, omega-3 fatty acids, creatine, inorganic nitrate, probiotics, minerals, collagen peptides, and polyphenols in the management of sarcopenia.
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Affiliation(s)
- Simin Liu
- General Practice Ward/International Medical Center Ward, General Practice Medical Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Lin Zhang
- General Practice Ward/International Medical Center Ward, General Practice Medical Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Shuangqing Li
- General Practice Ward/International Medical Center Ward, General Practice Medical Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- National Clinical Research Center for Geriatrics, Multimorbidity Laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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11
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Houston DK, Marsh AP, Neiberg RH, Demons JL, Campos CL, Kritchevsky SB, Delbono O, Tooze JA. Vitamin D Supplementation and Muscle Power, Strength and Physical Performance in Older Adults: A Randomized Controlled Trial. Am J Clin Nutr 2023; 117:1086-1095. [PMID: 37084814 PMCID: PMC10447505 DOI: 10.1016/j.ajcnut.2023.04.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 04/14/2023] [Accepted: 04/18/2023] [Indexed: 04/23/2023] Open
Abstract
BACKGROUND Low 25-hydroxyvitamin D (25[OH]D) concentrations (<30 ng/mL [<50 nmol/L]) have been associated with muscle weakness and impaired physical performance in observational studies. However, the effect of vitamin D supplementation on changes in muscle strength and physical performance in randomized controlled trials has been mixed. OBJECTIVES To determine the effect of daily vitamin D supplementation on leg power, strength, and physical performance in low-functioning older adults with 25(OH)D concentrations of 18 to <30 ng/mL. METHODS In this double-blind, randomized controlled trial, 136 low-functioning [Short Physical Performance Battery (SPPB) scores ≤10] adults aged 65-89 y with 25(OH)D concentrations of 18 to <30 ng/mL were randomly assigned to 2000 IU/d vitamin D3 or placebo for 12 mo. Lower-extremity leg power (primary outcome), leg and grip strength, SPPB, timed up and go (TUG), postural sway, and gait velocity and spatiotemporal parameters (secondary outcomes) were assessed at baseline, 4 and 12 mo. A subset (n = 37) also underwent a muscle biopsy at baseline and 4 mo and muscle fiber composition and contractile properties were assessed. RESULTS Participants' mean ± SD age and SPPB scores at baseline were 73.4 ± 6.3 y and 7.8 ± 1.8, respectively. Mean ± SD 25(OH)D concentrations at baseline and 12 mo were 19.4 ± 4.2 ng/mL and 28.6 ± 6.7 ng/mL in the vitamin D group and 19.9 ± 4.9 ng/mL and 20.2 ± 5.0 ng/mL in the placebo group for a mean ± SE difference of 9.1 ± 1.1 ng/mL (P < 0.0001). However, there were no differences in change in leg power, leg or grip strength, SPPB score, TUG, postural sway, or gait velocity and spatiotemporal parameters by intervention group over 12 mo or muscle fiber composition and contractile properties over 4 mo. CONCLUSIONS In low-functioning older adults with 25(OH)D concentrations of 18 to <30 ng/mL, randomization to 2000 IU/d vitamin D3 did not result in improvements in leg power, strength, or physical performance or muscle fiber composition and contractile properties. This trial was registered at clinicaltrials.gov as NCT02015611.
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Affiliation(s)
- Denise K Houston
- Department of Internal Medicine, Wake Forest University School of Medicine, Winston Salem, NC, USA.
| | - Anthony P Marsh
- Department of Health and Exercise Science, Wake Forest University, Winston Salem, NC, USA
| | - Rebecca H Neiberg
- Department of Biostatistics and Data Science, Wake Forest University School of Medicine, Winston Salem, NC, USA
| | - Jamehl L Demons
- Department of Internal Medicine, Wake Forest University School of Medicine, Winston Salem, NC, USA
| | - Claudia L Campos
- Department of Internal Medicine, Wake Forest University School of Medicine, Winston Salem, NC, USA
| | - Stephen B Kritchevsky
- Department of Internal Medicine, Wake Forest University School of Medicine, Winston Salem, NC, USA
| | - Osvaldo Delbono
- Department of Internal Medicine, Wake Forest University School of Medicine, Winston Salem, NC, USA
| | - Janet A Tooze
- Department of Biostatistics and Data Science, Wake Forest University School of Medicine, Winston Salem, NC, USA
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12
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Ruiz-García A, Pallarés-Carratalá V, Turégano-Yedro M, Torres F, Sapena V, Martin-Gorgojo A, Martin-Moreno JM. Vitamin D Supplementation and Its Impact on Mortality and Cardiovascular Outcomes: Systematic Review and Meta-Analysis of 80 Randomized Clinical Trials. Nutrients 2023; 15:nu15081810. [PMID: 37111028 PMCID: PMC10146299 DOI: 10.3390/nu15081810] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 04/01/2023] [Accepted: 04/05/2023] [Indexed: 04/29/2023] Open
Abstract
BACKGROUND The impact of vitamin D supplementation on cardiovascular outcomes and mortality risk reduction remains unclear due to conflicting study findings. METHODS We conducted a systematic review and meta-analysis of randomized controlled trials (RCTs), published between 1983 and 2022, that reported the effect of vitamin D supplementation in adults versus placebo or no treatment on all-cause mortality (ACM), cardiovascular mortality (CVM), non-cardiovascular mortality (non-CVM), and cardiovascular morbidities. Only studies with a follow-up period longer than one year were included. The primary outcomes were ACM and CVM. Secondary outcomes were non-CVM, myocardial infarction, stroke, heart failure, and major or extended adverse cardiovascular events. Subgroup analyses were performed according to low-, fair- and good-quality RCTs. RESULTS Eighty RCTs were assessed, including 82,210 participants receiving vitamin D supplementation and 80,921 receiving placebo or no treatment. The participants' mean (SD) age was 66.1 (11.2) years, and 68.6% were female. Vitamin D supplementation was associated with a lower risk of ACM (OR: 0.95 [95%CI 0.91-0.99] p = 0.013), was close to statistical significance for a lower risk of non-CVM (OR: 0.94 [95%CI 0.87-1.00] p = 0.055), and was not statistically associated with a lower risk of any cardiovascular morbi-mortality outcome. Meta-analysis of low-quality RCTs showed no association with cardiovascular or non-cardiovascular morbi-mortality outcomes. CONCLUSIONS The emerging results of our meta-analysis present evidence that vitamin D supplementation appears to decrease the risk of ACM (especially convincing in the fair- and good-quality RCTs), while not showing a decrease in the specific cardiovascular morbidity and mortality risk. Thus, we conclude that further research is warranted in this area, with well-planned and executed studies as the basis for more robust recommendations.
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Affiliation(s)
- Antonio Ruiz-García
- Lipids and Cardiovascular Prevention Unit, Pinto University Health Center, 28320 Madrid, Spain
- Department of Medicine, European University of Madrid, 28670 Madrid, Spain
| | - Vicente Pallarés-Carratalá
- Health Surveillance Unit, Castellón Mutual Insurance Union, 12003 Castellón, Spain
- Department of Medicine, Universitat Jaume I, 12006 Castellón, Spain
| | | | - Ferran Torres
- Biostatistics Unit, Medical School, Universitat Autònoma de Barcelona Bellaterra, 08193 Barcelona, Spain
| | - Víctor Sapena
- Biostatistics Unit, Medical School, Universitat Autònoma de Barcelona Bellaterra, 08193 Barcelona, Spain
| | | | - Jose M Martin-Moreno
- Department of Preventive Medicine and Public Health, University of Valencia, 46010 Valencia, Spain
- Biomedical Research Institute INCLIVA, Clinic University Hospital, 46010 Valencia, Spain
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13
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Aragon AA, Tipton KD, Schoenfeld BJ. Age-related muscle anabolic resistance: inevitable or preventable? Nutr Rev 2023; 81:441-454. [PMID: 36018750 DOI: 10.1093/nutrit/nuac062] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Age-related loss of muscle mass, strength, and performance, commonly referred to as sarcopenia, has wide-ranging detrimental effects on human health, the ramifications of which can have serious implications for both morbidity and mortality. Various interventional strategies have been proposed to counteract sarcopenia, with a particular emphasis on those employing a combination of exercise and nutrition. However, the efficacy of these interventions can be confounded by an age-related blunting of the muscle protein synthesis response to a given dose of protein/amino acids, which has been termed "anabolic resistance." While the pathophysiology of sarcopenia is undoubtedly complex, anabolic resistance is implicated in the progression of age-related muscle loss and its underlying complications. Several mechanisms have been proposed as underlying age-related impairments in the anabolic response to protein consumption. These include decreased anabolic molecular signaling activity, reduced insulin-mediated capillary recruitment (thus, reduced amino acid delivery), and increased splanchnic retention of amino acids (thus, reduced availability for muscular uptake). Obesity and sedentarism can exacerbate, or at least facilitate, anabolic resistance, mediated in part by insulin resistance and systemic inflammation. This narrative review addresses the key factors and contextual elements involved in reduction of the acute muscle protein synthesis response associated with aging and its varied consequences. Practical interventions focused on dietary protein manipulation are proposed to prevent the onset of anabolic resistance and mitigate its progression.
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Affiliation(s)
- Alan A Aragon
- is with the Department of Family and Consumer Sciences, California State University, Northridge, California, USA
| | - Kevin D Tipton
- is with the Institute of Performance Nutrition, Edinburgh, Scotland
| | - Brad J Schoenfeld
- is with the Department of Health Sciences, CUNY Lehman College, Bronx, New York, USA
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14
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Guo Y, Fu X, Hu Q, Chen L, Zuo H. The Effect of Leucine Supplementation on Sarcopenia-Related Measures in Older Adults: A Systematic Review and Meta-Analysis of 17 Randomized Controlled Trials. Front Nutr 2022; 9:929891. [PMID: 35845777 PMCID: PMC9284268 DOI: 10.3389/fnut.2022.929891] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 06/14/2022] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND The role of leucine in sarcopenia prevention remains unclear. We aimed to summarize the published data from randomized controlled trials (RCTs) to estimate the effect of leucine supplementation on sarcopenia-related measures in older adults. METHODS A systematic literature search was performed using the electronic databases PubMed, Embase, and Web of Science with restriction to randomized controlled trials design from January 1, 2009 to March 19, 2022. Sarcopenia-related measures included handgrip strength, total lean mass, gait speed, leg press, 6-min walk test, short-physical performance battery, timed up-and-go test and 30-s chair-stand test. Fixed- and random-effects meta-analysis models were used to generate pooled weighted mean differences (WMDs) and 95% CIs. Heterogeneity was examined in subgroup and sensitivity analyses. Publication bias assessments were performed. RESULTS A total of 17 RCTs enrolling 1418 subjects were identified. Leucine-isolated supplementation showed no effect on total lean mass (WMD = 0.03 kg, 95% CI: -0.51, 0.57, P = 0.917), handgrip strength (WMD = 1.23 kg, 95% CI: -0.58, 3.03, P = 0.183) and leg press (WMD = -1.35 kg, 95% CI: -7.46, 4.77, P = 0.666). However, leucine-combined supplementation including vitamin D showed a significant improvement in handgrip strength (WMD = 2.17 kg, 95% CI: 0.24, 4.10, P = 0.027) and gait speed (WMD = 0.03 m/s, 95% CI: 0.01, 0.05, P = 0.008). CONCLUSION Leucine-isolated supplementation did not improve muscle mass and strength in elderly. However, leucine-combined supplementation including vitamin D exhibited a significant benefit for muscle strength and performance including handgrip strength and gait speed in older adults. A combination of nutritional supplements would be a viable option for improving sarcopenia.
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Affiliation(s)
- Yufei Guo
- School of Public Health, Suzhou Medical College of Soochow University, Suzhou, China
| | - Xiaoya Fu
- School of Public Health, Suzhou Medical College of Soochow University, Suzhou, China
| | - Qingjing Hu
- School of Public Health, Suzhou Medical College of Soochow University, Suzhou, China
| | - Lihua Chen
- Department of Nutrition and Food Hygiene, School of Public Health, Nantong University, Nantong, China
| | - Hui Zuo
- School of Public Health, Suzhou Medical College of Soochow University, Suzhou, China
- Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Suzhou Medical College of Soochow University, Suzhou, China
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15
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Prokopidis K, Giannos P, Katsikas Triantafyllidis K, Kechagias KS, Mesinovic J, Witard OC, Scott D. Effect of vitamin D monotherapy on indices of sarcopenia in community-dwelling older adults: a systematic review and meta-analysis. J Cachexia Sarcopenia Muscle 2022; 13:1642-1652. [PMID: 35261183 PMCID: PMC9178168 DOI: 10.1002/jcsm.12976] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 01/24/2022] [Accepted: 02/21/2022] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Vitamin D supplementation is proposed as a potentially effective nutritional intervention to mitigate the risk of sarcopenia. The aim of this systematic review and meta-analysis was to investigate the impact of vitamin D supplementation monotherapy on indices of sarcopenia in community-dwelling older adults. METHODS A comprehensive search of the literature was conducted in PubMed, Web of Science, Scopus, and Cochrane Library. Eligible randomized controlled trials (RCTs) compared the effect of vitamin D supplementation (as monotherapy) with placebo on indices of sarcopenia in older (>50 years) adults. Using the random effects inverse-variance model, we calculated the mean difference (MD) in handgrip strength (HGS), short physical performance battery (SPPB), timed up and go (TUG), and appendicular lean mass (ALM) between groups. We also calculated the standardized mean difference (SMD) in general muscle strength and general physical performance (composite plot of all muscle strength and physical performance outcomes, respectively) between groups. RESULTS Ten RCTs were included in the meta-analysis. A significant decrease in SPPB scores was observed with vitamin D supplementation compared with placebo (MD: -0.23; 95% CI -0.40 to -0.06; I2 = 0%; P = 0.007). Vitamin D supplementation conferred no effect on HGS (MD: -0.07 kg; 95% CI -0.70 to 0.55; I2 = 51%, P = 0.82), TUG (MD: 0.07 s; 95% CI -0.08 to 0.22; I2 = 0%, P = 0.35), ALM (MD: 0.06 kg/m2 ; 95% CI: -0.32 to 0.44; I2 = 73%, P = 0.77), general muscle strength (SMD: -0.01; 95% CI -0.17 to 0.15; I2 = 42%, P = 0.90), or general physical performance (SMD: -0.02; 95% CI -0.23 to 0.18; I2 = 71%, P = 0.83). CONCLUSIONS Vitamin D supplementation did not improve any sarcopenia indices in community-dwelling older adults and may compromise some aspects of physical performance. Future studies are warranted to investigate the impact of vitamin D supplementation on individual indices of SPPB, including mobility and balance, in older adults.
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Affiliation(s)
- Konstantinos Prokopidis
- Department of Musculoskeletal Biology, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, UK.,Society of Meta-research and Biomedical Innovation, London, UK
| | - Panagiotis Giannos
- Society of Meta-research and Biomedical Innovation, London, UK.,Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London, UK
| | - Konstantinos Katsikas Triantafyllidis
- Society of Meta-research and Biomedical Innovation, London, UK.,Department of Nutrition & Dietetics, Musgrove Park Hospital, Taunton & Somerset NHS Foundation Trust, Taunton, UK
| | - Konstantinos S Kechagias
- Society of Meta-research and Biomedical Innovation, London, UK.,Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, UK
| | - Jakub Mesinovic
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Burwood, Victoria, Australia.,Department of Medicine, School of Clinical Sciences at Monash Health, Monash University, Clayton, Victoria, Australia
| | - Oliver C Witard
- Centre for Human and Applied Physiological Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - David Scott
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Burwood, Victoria, Australia.,Department of Medicine, School of Clinical Sciences at Monash Health, Monash University, Clayton, Victoria, Australia
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16
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Bollen SE, Bass JJ, Fujita S, Wilkinson D, Hewison M, Atherton PJ. The Vitamin D/Vitamin D receptor (VDR) axis in muscle atrophy and sarcopenia. Cell Signal 2022; 96:110355. [PMID: 35595176 DOI: 10.1016/j.cellsig.2022.110355] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/10/2022] [Accepted: 05/12/2022] [Indexed: 12/22/2022]
Abstract
Muscle atrophy and sarcopenia (the term given to the age-related decline in muscle mass and function), influence an individuals risk of falls, frailty, functional decline, and, ultimately, impaired quality of life. Vitamin D deficiency (low serum levels of 25-hydroxyvitamin D (25(OH)D3)) has been reported to impair muscle strength and increase risk of sarcopenia. The mechanisms that underpin the link between low 25(OH)D3 and sarcopenia are yet to be fully understood but several lines of evidence have highlighted the importance of both genomic and non-genomic effects of active vitamin D (1,25-dihydroxyvitamin D (1,25(OH)2D3)) and its nuclear vitamin D receptor (VDR), in skeletal muscle functioning. Studies in vitro have demonstrated a key role for the vitamin D/VDR axis in regulating biological processes central to sarcopenic muscle atrophy, such as proteolysis, mitochondrial function, cellular senescence, and adiposity. The aim of this review is to provide a mechanistic overview of the proposed mechanisms for the vitamin D/VDR axis in sarcopenic muscle atrophy.
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Affiliation(s)
- Shelby E Bollen
- MRC/ARUK Centre for Musculoskeletal Ageing Research and National Institute for Health Research (NIHR), Nottingham Biomedical Research Centre (BRC), School of Medicine, University of Nottingham, DE22 3DT, UK.
| | - Joseph J Bass
- MRC/ARUK Centre for Musculoskeletal Ageing Research and National Institute for Health Research (NIHR), Nottingham Biomedical Research Centre (BRC), School of Medicine, University of Nottingham, DE22 3DT, UK
| | - Satoshi Fujita
- Faculty of Sport and Health Science, Ritsumeikan University, Kusatsu, Shiga, Japan
| | - Daniel Wilkinson
- MRC/ARUK Centre for Musculoskeletal Ageing Research and National Institute for Health Research (NIHR), Nottingham Biomedical Research Centre (BRC), School of Medicine, University of Nottingham, DE22 3DT, UK
| | - Martin Hewison
- Metabolism and Systems Research, University of Birmingham, Birmingham, UK
| | - Philip J Atherton
- MRC/ARUK Centre for Musculoskeletal Ageing Research and National Institute for Health Research (NIHR), Nottingham Biomedical Research Centre (BRC), School of Medicine, University of Nottingham, DE22 3DT, UK.
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17
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Rahman R, Wilson BP, Paul TV, Yadav B, Kango Gopal G, Viggeswarpu S. Prevalence and factors contributing to primary sarcopenia in relatively healthy older Indians attending the outpatient department in a tertiary care hospital: A cross-sectional study. Aging Med (Milton) 2021; 4:257-265. [PMID: 34964006 PMCID: PMC8711223 DOI: 10.1002/agm2.12186] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 12/02/2021] [Accepted: 12/02/2021] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Literature is scarce on primary sarcopenia among Indian older adults. This study was aimed to estimate the prevalence of primary sarcopenia among older persons in India using the European Working Group on Sarcopenia in the Older People 2010 (EWGSOP) diagnostic criteria and to elucidate the factors leading to its development. METHODOLOGY Two hundred twenty-seven subjects over 60 years of age attending the geriatric outpatient clinic were recruited for the study. Sarcopenia was diagnosed based on set criteria for gait speed, handgrip, and skeletal muscle mass assessment by dual-energy x-ray absorptiometry. RESULT The prevalence of primary sarcopenia in the study population was 39.2% (n = 89). Male patients were more sarcopenic than women, 47% (n = 72) vs 23% (n = 17). Obese subjects (body mass index > 25 kg/m2) had a lower prevalence of sarcopenia (odds ratio = 0.10; 95% confidence interval = 0.05-0.19). There was no association between sarcopenia and other postulated risk factors like low vitamin D levels, dietary protein or carbohydrate intake, or sedentary lifestyle. CONCLUSION Contrary to published data, primary sarcopenia appears to be higher among older Indians using presently available guidelines. Community studies with validated cutoffs suited for the Indian subcontinent may yield a lower prevalence of primary sarcopenia.
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Affiliation(s)
- Rishal Rahman
- Department of Medicine for the Elderly and StrokeUniversity Hospitals DorsetBournemouthUK
| | - Benny Paul Wilson
- Department of GeriatricsChristian Medical College VelloreVelloreIndia
| | | | - Bijesh Yadav
- Department of BiostatisticsChristian Medical College VelloreVelloreIndia
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18
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Bislev LS, Grove-Laugesen D, Rejnmark L. Vitamin D and Muscle Health: A Systematic Review and Meta-analysis of Randomized Placebo-Controlled Trials. J Bone Miner Res 2021; 36:1651-1660. [PMID: 34405916 DOI: 10.1002/jbmr.4412] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 06/29/2021] [Accepted: 07/04/2021] [Indexed: 12/20/2022]
Abstract
The objective of this study was to investigate the effects of vitamin D supplementation versus placebo on muscle health. For this systematic review and trial-level meta-analysis of placebo-controlled trials, a systematic search of randomized controlled trials published until October 2020 was performed in Medline, Embase, and Google Scholar. We included studies in humans (except athletes) on supplementation with vitamin D2 or D3 versus placebo, regardless of administration form (daily, bolus, and duration) with or without calcium co-supplementation. The predefined endpoints were physical performance reported as timed up and go test (TUG; seconds), chair rising test (seconds), 6-minute walking distance (m), and Short Physical Performance Battery (SPPB; points). Furthermore, endpoints were maximum muscle strength (Newton) measured at handgrip, elbow flexion, elbow extension, knee flexion, and knee extension, as well as muscle (lean tissue) mass (kg). Falls were not included in the analysis. Cochrane Review Manager (version 5.4.1.) calculating mean difference (MD) using a random effect model was used. In total, 54 randomized controlled trials involving 8747 individuals were included. Vitamin D versus placebo was associated with a significantly longer time spent performing the TUG (MD 0.15 [95% confidence interval (CI) 0.03 to 0.26] seconds, N = 19 studies, I2 = 0%, n = 5223 participants) and a significant lower maximum knee flexion strength (MD -3.3 [-6.63 to -0.03] Newton, N = 12 studies, I2 = 0%, n = 765 participants). Total score in the SPPB showed a tendency toward worsening in response to vitamin D compared with placebo (MD -0.18 [-0.37 to 0.01] points, N = 8 studies, I2 = 0%, n = 856 participants). Other measures of muscle health did not show between-group differences. In subgroup analyses, including studies with low vitamin D levels, effects of vitamin D supplementation did not differ from placebo. Available evidence does not support a beneficial effect of vitamin D supplementation on muscle health. Vitamin D may have adverse effects on muscle health, which needs to be considered when recommending vitamin D supplementation. © 2021 American Society for Bone and Mineral Research (ASBMR).
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Affiliation(s)
- Lise Sofie Bislev
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Diana Grove-Laugesen
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Lars Rejnmark
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
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Low prealbumin levels are associated with sarcopenia in older men with type 2 diabetes mellitus: A cross-sectional study. Nutrition 2021; 91-92:111415. [PMID: 34399401 DOI: 10.1016/j.nut.2021.111415] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 06/20/2021] [Accepted: 06/28/2021] [Indexed: 01/04/2023]
Abstract
OBJECTIVES The aim of this study was to evaluate the association between the serum levels of prealbumin and sarcopenia in older adults with type 2 diabetes mellitus. METHODS This cross-sectional study included 582 older adults with type 2 diabetes mellitus. Sarcopenia was defined based on the recently updated Asian Working Group for Sarcopenia 2019 criteria. Appendicular skeletal muscle was measured by dual energy x-ray absorptiometry. Serum levels of prealbumin, hemoglobin, hemoglobin A1c, and 25-hydroxyvitamin D3 were also tested. Multivariate analyses were used to assess the association between prealbumin levels and sarcopenia, adjusted for potential confounders. RESULTS The overall prevalence of sarcopenia was 9%, of which 12% for men and 6% for women. Male participants with sarcopenia had lower prealbumin levels than those without sarcopenia (213 ± 72 versus 260 ± 56 mg/L, P < 0.001). The proportion of men with low prealbumin level (<170 mg/L) was significantly higher in individuals with sarcopenia than in those without (31% versus 6%, respectively). In a logistic regression model, after adjusting for all potential covariates, low prealbumin (odds ratio, 4.15; 95% confidence interval, 1.13-15.25; P = 0.03) was significantly associated with sarcopenia in men, but the relationship between prealbumin and sarcopenia was not found in women. CONCLUSION Low prealbumin levels were associated with an increased risk for sarcopenia in older men with T2DM.
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20
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Maintenance of Skeletal Muscle to Counteract Sarcopenia in Patients with Advanced Chronic Kidney Disease and Especially Those Undergoing Hemodialysis. Nutrients 2021; 13:nu13051538. [PMID: 34063269 PMCID: PMC8147474 DOI: 10.3390/nu13051538] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/28/2021] [Accepted: 04/30/2021] [Indexed: 12/18/2022] Open
Abstract
Life extension in modern society has introduced new concepts regarding such disorders as frailty and sarcopenia, which has been recognized in various studies. At the same time, cutting-edge technology methods, e.g., renal replacement therapy for conditions such as hemodialysis (HD), have made it possible to protect patients from advanced lethal chronic kidney disease (CKD). Loss of muscle and fat mass, termed protein energy wasting (PEW), has been recognized as prognostic factor and, along with the increasing rate of HD introduction in elderly individuals in Japan, appropriate countermeasures are necessary. Although their origins differ, frailty, sarcopenia, and PEW share common components, among which skeletal muscle plays a central role in their etiologies. The nearest concept may be sarcopenia, for which diagnosis techniques have recently been reported. The focus of this review is on maintenance of skeletal muscle against aging and CKD/HD, based on muscle physiology and pathology. Clinically relevant and topical factors related to muscle wasting including sarcopenia, such as vitamin D, myostatin, insulin (related to diabetes), insulin-like growth factor I, mitochondria, and physical inactivity, are discussed. Findings presented thus far indicate that in addition to modulation of the aforementioned factors, exercise combined with nutritional supplementation may be a useful approach to overcome muscle wasting and sarcopenia in elderly patients undergoing HD treatments.
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21
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Kahwati LC, LeBlanc E, Weber RP, Giger K, Clark R, Suvada K, Guisinger A, Viswanathan M. Screening for Vitamin D Deficiency in Adults: Updated Evidence Report and Systematic Review for the US Preventive Services Task Force. JAMA 2021; 325:1443-1463. [PMID: 33847712 DOI: 10.1001/jama.2020.26498] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
IMPORTANCE Low serum vitamin D levels have been associated with adverse clinical outcomes; identifying and treating deficiency may improve outcomes. OBJECTIVE To review the evidence about screening for vitamin D deficiency in adults. DATA SOURCES PubMed, EMBASE, the Cochrane Library, and trial registries through March 12, 2020; bibliographies from retrieved articles, outside experts, and surveillance of the literature through November 30, 2020. STUDY SELECTION Fair- or good-quality, English-language randomized clinical trials (RCTs) of screening with serum 25-hydroxyvitamin D (25[OH]D) compared with no screening, or treatment with vitamin D (with or without calcium) compared with placebo or no treatment conducted in nonpregnant adults; nonrandomized controlled intervention studies for harms only. Treatment was limited to studies enrolling or analyzing participants with low serum vitamin D levels. DATA EXTRACTION AND SYNTHESIS Two reviewers assessed titles/abstracts and full-text articles, extracted data, and assessed study quality; when at least 3 similar studies were available, meta-analyses were conducted. MAIN OUTCOMES AND MEASURES Mortality, incident fractures, falls, diabetes, cardiovascular events, cancer, depression, physical functioning, and infection. RESULTS Forty-six studies (N = 16 205) (77 publications) were included. No studies directly evaluated the health benefits or harms of screening. Among community-dwelling populations, treatment was not significantly associated with mortality (pooled absolute risk difference [ARD], 0.3% [95% CI, -0.6% to 1.1%]; 8 RCTs, n = 2006), any fractures (pooled ARD, -0.3% [95% CI, -2.1% to 1.6%]; 6 RCTs, n = 2186), incidence of diabetes (pooled ARD, 0.1% [95% CI, -1.3% to 1.6%]; 5 RCTs, n = 3356), incidence of cardiovascular disease (2 RCTs; hazard ratio, 1.00 [95% CI, 0.74 to 1.35] and 1.09 [95% CI, 0.68 to 1.76]), incidence of cancer (2 RCTs; hazard ratio, 0.97 [95% CI, 0.68 to 1.39] and 1.01 [95% CI, 0.65 to 1.58], or depression (3 RCTs, various measures reported). The pooled ARD for incidence of participants with 1 or more falls was -4.3% (95% CI, -11.6% to 2.9%; 6 RCTs). The evidence was mixed for the effect of treatment on physical functioning (2 RCTs) and limited for the effect on infection (1 RCT). The incidence of adverse events and kidney stones was similar between treatment and control groups. CONCLUSIONS AND RELEVANCE No studies evaluated the direct benefits or harms of screening for vitamin D deficiency. Among asymptomatic, community-dwelling populations with low vitamin D levels, the evidence suggests that treatment with vitamin D has no effect on mortality or the incidence of fractures, falls, depression, diabetes, cardiovascular disease, cancer, or adverse events. The evidence is inconclusive about the effect of treatment on physical functioning and infection.
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Affiliation(s)
- Leila C Kahwati
- RTI International-University of North Carolina at Chapel Hill Evidence-based Practice Center, Chapel Hill, North Carolina
- RTI International, Research Triangle Park, North Carolina
| | - Erin LeBlanc
- Kaiser Permanente Center for Health Research, Portland, Oregon
| | - Rachel Palmieri Weber
- RTI International-University of North Carolina at Chapel Hill Evidence-based Practice Center, Chapel Hill, North Carolina
- Cecil G. Sheps Center for Health Services Research, University of North Carolina at Chapel Hill
| | - Kayla Giger
- RTI International-University of North Carolina at Chapel Hill Evidence-based Practice Center, Chapel Hill, North Carolina
- RTI International, Research Triangle Park, North Carolina
| | - Rachel Clark
- RTI International-University of North Carolina at Chapel Hill Evidence-based Practice Center, Chapel Hill, North Carolina
- RTI International, Research Triangle Park, North Carolina
| | - Kara Suvada
- RTI International-University of North Carolina at Chapel Hill Evidence-based Practice Center, Chapel Hill, North Carolina
- RTI International, Research Triangle Park, North Carolina
| | - Amy Guisinger
- Gillings School of Global Public Health and Eshelman School of Pharmacy, University of North Carolina at Chapel Hill
| | - Meera Viswanathan
- RTI International-University of North Carolina at Chapel Hill Evidence-based Practice Center, Chapel Hill, North Carolina
- RTI International, Research Triangle Park, North Carolina
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22
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Vitamin D Supplementation and Impact on Skeletal Muscle Function in Cell and Animal Models and an Aging Population: What Do We Know So Far? Nutrients 2021; 13:nu13041110. [PMID: 33800650 PMCID: PMC8066691 DOI: 10.3390/nu13041110] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/22/2021] [Accepted: 03/25/2021] [Indexed: 12/25/2022] Open
Abstract
Aging is associated with impairment in skeletal muscle mass and contractile function, predisposing to fat mass gain, insulin resistance and diabetes. The impact of Vitamin D (VitD) supplementation on skeletal muscle mass and function in older adults is still controversial. The aim of this review was to summarize data from randomized clinical trials, animal dietary intervention and cell studies in order to clarify current knowledge on the effects of VitD on skeletal muscle as reported for these three types of experiments. A structured research of the literature in Medline via PubMed was conducted and a total of 43 articles were analysed (cells n = 18, animals n = 13 and humans n = 13). The results as described by these key studies demonstrate, overall, at cell and animal levels, that VitD treatments had positive effects on the development of muscle fibres in cells in culture, skeletal muscle force and hypertrophy. Vitamin D supplementation appears to regulate not only lipid and mitochondrial muscle metabolism but also to have a direct effect on glucose metabolism and insulin driven signalling. However, considering the human perspective, results revealed a predominance of null effects of the vitamin on muscle in the ageing population, but experimental design may have influenced the study outcome in humans. Well-designed long duration double-blinded trials, standardised VitD dosing regimen, larger sample sized studies and standardised measurements may be helpful tools to accurately determine results and compare to those observed in cells and animal dietary intervention models.
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23
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Shibasaki K, Asahi T, Kuribayashi M, Tajima Y, Marubayashi M, Iwama R, Akishita M, Ogawa S. Potential prescribing omissions of anti-osteoporosis drugs is associated with rehabilitation outcomes after fragility fracture: Retrospective cohort study. Geriatr Gerontol Int 2021; 21:386-391. [PMID: 33641245 DOI: 10.1111/ggi.14145] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 01/11/2021] [Accepted: 02/14/2021] [Indexed: 12/18/2022]
Abstract
AIM We investigated the association between rehabilitation outcomes and polypharmacy, potentially inappropriate medications and potential prescribing omissions in older adults with fragility fractures. METHODS In total, we registered 217 older adults with fragility fractures (hip or vertebral) retrospectively and examined the association between rehabilitation outcome and polypharmacy, potentially inappropriate medications and potential prescribing omissions. Polypharmacy was defined as five or more drugs. Potentially inappropriate medications and potential prescribing omissions were defined by the Beers criteria (2015) and the screening tool to alert to treatment criteria version 2, respectively. The outcome was functional independence measure gain (functional independence measure at discharge - functional independence measure at admission). RESULTS Multiple regression analyses revealed no association between functional independence measure gain and polypharmacy (crude: β = 0.058, P = 0.858; adjusted model: β = 0.013, P = 0.869) or potentially inappropriate medications (crude: β = 0.100, P = 0.144; adjusted model: β = 0.084, P = 0.260). However, there was a significant association between functional independence measure gain and potential prescribing omissions (crude: β = 0.167, P = 0.014; adjusted model: β = 0.180, P = 0.016). Participants without potential prescribing omissions (in other words, participants who were prescribed anti-osteoporosis drugs) had a greater functional independence measure gain than participants with potential prescribing omissions (in other words, those that were not prescribed anti-osteoporosis drugs). CONCLUSION To the best of our knowledge, this study is the first to report that participants without potential prescribing omissions had significantly improved rehabilitation outcomes. Geriatr Gerontol Int 2021; 21: 386-391.
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Affiliation(s)
- Koji Shibasaki
- Department of Rehabilitation Medicine, Asahi Neurology and Rehabilitation Hospital, Matsudo City, Japan.,Department of Geriatric Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Toshiomi Asahi
- Department of Rehabilitation Medicine, Asahi Neurology and Rehabilitation Hospital, Matsudo City, Japan
| | - Mari Kuribayashi
- Department of Rehabilitation Medicine, Asahi Neurology and Rehabilitation Hospital, Matsudo City, Japan
| | - Yuriko Tajima
- Department of Rehabilitation Medicine, Asahi Neurology and Rehabilitation Hospital, Matsudo City, Japan
| | - Miki Marubayashi
- Department of Rehabilitation Medicine, Asahi Neurology and Rehabilitation Hospital, Matsudo City, Japan
| | - Risa Iwama
- Department of Rehabilitation Medicine, Asahi Neurology and Rehabilitation Hospital, Matsudo City, Japan
| | - Masahiro Akishita
- Department of Geriatric Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Sumito Ogawa
- Department of Geriatric Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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24
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Byers AW, Connolly G, Campbell WW. Vitamin D status and supplementation impacts on skeletal muscle function: comparisons between young athletes and older adults. Curr Opin Clin Nutr Metab Care 2020; 23:421-427. [PMID: 32925179 DOI: 10.1097/mco.0000000000000692] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
PURPOSE OF REVIEW The present narrative review analyzes emerging research implicating vitamin D status and supplementation with skeletal muscle homeostasis and functions in two distinct segments of the adult population: young athletes and older adults. RECENT FINDINGS Vitamin D deficiency compromises multiple indices of muscle function in young athletes and older adults. A variety of vitamin D3 (cholecalciferol) supplementation regimens may transition young athletes and older adults from deficient or inadequate to adequate vitamin D status. Vitamin D supplementation, used to treat a vitamin D deficiency, but not necessarily an inadequacy, promotes muscle anabolism in older adults. For both young athletes and older adults, vitamin D supplementation, which transitions them from inadequate to adequate vitamin D status, may not beneficially affect measures of muscle strength and power, or physical performance. Also, when vitamin D status is adequate, vitamin D supplementation to further increase serum 25(OH)D concentrations does not seem to confer additional benefits to muscle strength and power and physical performance. SUMMARY The impacts of vitamin D status and supplementation on skeletal muscle homeostasis and functions seem comparable in young athletes who strive to maximize physical performance and older adults who seek to attenuate muscle mass and physical performance declines.
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Affiliation(s)
- Adam W Byers
- Department of Nutrition Science, Purdue University, West Lafayette, Indiana, USA
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25
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Rathmacher JA, Pitchford LM, Khoo P, Angus H, Lang J, Lowry K, Ruby C, Krajek AC, Fuller JC, Sharp RL. Long-term Effects of Calcium β-Hydroxy-β-Methylbutyrate and Vitamin D3 Supplementation on Muscular Function in Older Adults With and Without Resistance Training: A Randomized, Double-blind, Controlled Study. J Gerontol A Biol Sci Med Sci 2020; 75:2089-2097. [PMID: 32857128 PMCID: PMC7566440 DOI: 10.1093/gerona/glaa218] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Indexed: 12/25/2022] Open
Abstract
The primary aim of this study was to determine whether supplementation with calcium β-hydroxy-β-methylbutyrate (HMB) and vitamin D3 (D) would enhance muscle function and strength in older adults. Older adults over 60 years of age with insufficient circulating 25-hydroxy-vitamin D (25OH-D) levels were enrolled in a double-blinded controlled 12-month study. Study participants were randomly assigned to treatments consisting of: (a) Control + no exercise, (b) HMB+D + no exercise, (c) Control + exercise, and (d) HMB+D + exercise. The study evaluated 117 participants via multiple measurements over the 12 months that included body composition, strength, functionality, and questionnaires. HMB+D had a significant benefit on lean body mass within the nonexercise group at 6 months (0.44 ± 0.27 kg, HMB+D vs −0.33 ± 0.28 kg, control, p < .05). In nonexercisers, improvement in knee extension peak torque (60°/s) was significantly greater in HMB+D-supplemented participants than in the nonsupplemented group (p = .04) at 3 months, 10.9 ± 5.7 Nm and −5.2 ± 5.9 Nm, respectively. A composite functional index, integrating changes in handgrip, Get Up, and Get Up and Go measurements, was developed. HMB+D + no exercise resulted in significant increases in the functional index compared with those observed in the control + no exercise group at 3 (p = .03), 6 (p = .04), and 12 months (p = .04). Supplementation with HMB+D did not further improve the functional index within the exercising group. This study demonstrated the potential of HMB and vitamin D3 supplementation to enhance muscle strength and physical functionality in older adults, even in individuals not engaged in an exercise training program.
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Affiliation(s)
- John A Rathmacher
- MTI BioTech, Inc., Iowa State University Research Park, Ames.,Department of Animal Science, Iowa State University, Ames
| | - Lisa M Pitchford
- MTI BioTech, Inc., Iowa State University Research Park, Ames.,Department of Kinesiology, Iowa State University, Ames
| | - Paul Khoo
- Department of Kinesiology, Iowa State University, Ames
| | - Hector Angus
- Department of Kinesiology, Iowa State University, Ames
| | - James Lang
- Department of Kinesiology, Iowa State University, Ames
| | - Kristin Lowry
- Department of Physical Therapy, Des Moines University
| | - Carol Ruby
- Department of Physical Therapy, Des Moines University
| | - Alex C Krajek
- Department of Physical Therapy, Des Moines University
| | | | - Rick L Sharp
- Department of Kinesiology, Iowa State University, Ames
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26
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Endo Y, Nourmahnad A, Sinha I. Optimizing Skeletal Muscle Anabolic Response to Resistance Training in Aging. Front Physiol 2020; 11:874. [PMID: 32792984 PMCID: PMC7390896 DOI: 10.3389/fphys.2020.00874] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 06/29/2020] [Indexed: 12/13/2022] Open
Abstract
Loss of muscle mass and strength with aging, also termed sarcopenia, results in a loss of mobility and independence. Exercise, particularly resistance training, has proven to be beneficial in counteracting the aging-associated loss of skeletal muscle mass and function. However, the anabolic response to exercise in old age is not as robust, with blunted improvements in muscle size, strength, and function in comparison to younger individuals. This review provides an overview of several physiological changes which may contribute to age-related loss of muscle mass and decreased anabolism in response to resistance training in the elderly. Additionally, the following supplemental therapies with potential to synergize with resistance training to increase muscle mass are discussed: nutrition, creatine, anti-inflammatory drugs, testosterone, and growth hormone (GH). Although these interventions hold some promise, further research is necessary to optimize the response to exercise in elderly patients.
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Affiliation(s)
- Yori Endo
- Division of Plastic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
| | - Atousa Nourmahnad
- Division of Plastic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
| | - Indranil Sinha
- Division of Plastic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States.,Harvard Department of Stem Cell and Regenerative Biology, Harvard Stem Cell Institute, Cambridge, MA, United States
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27
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McKendry J, Currier BS, Lim C, Mcleod JC, Thomas AC, Phillips SM. Nutritional Supplements to Support Resistance Exercise in Countering the Sarcopenia of Aging. Nutrients 2020; 12:E2057. [PMID: 32664408 PMCID: PMC7399875 DOI: 10.3390/nu12072057] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 07/07/2020] [Accepted: 07/08/2020] [Indexed: 12/17/2022] Open
Abstract
Skeletal muscle plays an indispensable role in metabolic health and physical function. A decrease in muscle mass and function with advancing age exacerbates the likelihood of mobility impairments, disease development, and early mortality. Therefore, the development of non-pharmacological interventions to counteract sarcopenia warrant significant attention. Currently, resistance training provides the most effective, low cost means by which to prevent sarcopenia progression and improve multiple aspects of overall health. Importantly, the impact of resistance training on skeletal muscle mass may be augmented by specific dietary components (i.e., protein), feeding strategies (i.e., timing, per-meal doses of specific macronutrients) and nutritional supplements (e.g., creatine, vitamin-D, omega-3 polyunsaturated fatty acids etc.). The purpose of this review is to provide an up-to-date, evidence-based account of nutritional strategies to enhance resistance training-induced adaptations in an attempt to combat age-related muscle mass loss. In addition, we provide insight on how to incorporate the aforementioned nutritional strategies that may support the growth or maintenance of skeletal muscle and subsequently extend the healthspan of older individuals.
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Affiliation(s)
| | | | | | | | | | - Stuart M. Phillips
- Exercise Metabolism Research Group, Department of Kinesiology, McMaster University, Hamilton, ON L8S 4L8, Canada; (J.M.); (B.S.C.); (C.L.); (J.C.M.); (A.C.Q.T.)
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28
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Welford AE, Lanham-New S, Lord J, Doyle A, Robinson J, Nightingale P, Gittoes N, Greig CA. Influence of combined vitamin D 3 supplementation and resistance exercise training on musculoskeletal health in older men and women (EXVITD): protocol for a randomised controlled trial. BMJ Open 2020; 10:e033824. [PMID: 32193264 PMCID: PMC7202733 DOI: 10.1136/bmjopen-2019-033824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 02/04/2020] [Accepted: 02/11/2020] [Indexed: 12/02/2022] Open
Abstract
INTRODUCTION Sarcopenia is a progressive loss in muscle mass, strength and function, the adverse consequences of which are severe, affecting quality of life and placing an increasing burden on social and healthcare systems. Vitamin D status is known to be associated with markers of sarcopenia, namely muscle mass, strength and function. Also, resistance exercise training (RET) is currently the only proven intervention to treat sarcopenia. However, very little data exist on the influence of combining the two interventions of vitamin D supplementation and resistance exercise training, although a recent systematic review provides tentative support for the current study's hypothesis that the combined intervention may further improve musculoskeletal function above exercise training alone. The aim of the present study is to determine whether vitamin D3 supplementation is any more effective in improving musculoskeletal function when combined with RET compared with exercise training alone in older adults. METHODS AND ANALYSIS This double-blinded randomised placebo-controlled trial will recruit a target of 127 eligible men and women aged ≥65 years living independently or in sheltered housing within the Birmingham area to two groups: (1) 6 months RET and placebo or (2) 6 months RET and 800 IU/d vitamin D3. Measures of muscle power (Nottingham Power Rig), body composition (dual energy X-ray absorptiometry), muscle function (short physical performance battery, timed up and go), falls and fractures as events will be assessed. Assessments will take place at baseline and postintervention, with intermittent monitoring of bone turnover, calcium and vitamin D. The primary outcome will be lower limb extensor power output. Analyses of within-group changes and between-group differences in outcome measures are planned. ETHICS AND DISSEMINATION The EXVITD study has ethical approval granted by the Black Country National Health Service Research Ethics Committee (14/WM/1220). Results of this trial will be submitted for publication in peer-reviewed journals and presented at conferences. The study is being conducted according to the principles of the Declaration of Helsinki.Trial registration numberNCT02467153; Post-results.
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Affiliation(s)
- Anneka Elizabeth Welford
- School of Sports, Exericse and Rehabilitation Sciences, University of Birmingham, Birmingham, UK
| | - Susan Lanham-New
- Department of Nutritional Sciences, University of Surrey, Surrey, UK
| | - Janet Lord
- MRC-Arthritis UK Centre for Musculoskeletal Ageing Research, University of Birmingham, Birmingham, West Midlands, UK
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham, Birmingham, UK
| | | | | | - Peter Nightingale
- Wellcome Trust Clinical Research Facility, Queen Elizabeth Hospital Birmingham, Birmingham, West Midlands, UK
| | - Neil Gittoes
- Centre for Endocrinology, Diabetes and Metabolism, Queen Elizabeth Hospital Birmingham, Birmingham, Birmingham, UK
- University Hospitals Birmingham NHS Foundation Trust & University of Birmingham, NIHR Birmingham Biomedical Research Centre, Birmingham, UK
| | - Carolyn A Greig
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research, MRC-Arthritis Research UK Centre for Musculoskeletal Ageing Research, Birmingham, UK
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29
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Preventing Lethal Prostate Cancer with Diet, Supplements, and Rx: Heart Healthy Continues to Be Prostate Healthy and "First Do No Harm" Part II. Curr Urol Rep 2020; 21:15. [PMID: 32185555 DOI: 10.1007/s11934-020-0967-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
PURPOSE OF REVIEW To discuss the overall and latest observations of the effect of diet, lifestyle, supplements, and some prescription heart healthy medications for prostate cancer prevention. RECENT FINDINGS The concept of maximizing heart health to prevent aggressive prostate cancer continues to be solidified with the addition of more prospective observational and randomized controlled trial data. Heart healthy is prostate healthy, and heart unhealthy is prostate unhealthy. The primary goal of reducing the risk of all-cause and cardiovascular disease (CVD) morbidity and mortality also coincides with maximizing prostate cancer prevention. The obesity epidemic in children and adults along with recent diverse research has only strengthened the nexus between heart and prostate health. Greater dietary adherence toward a variety of healthy foods is associated with a graded improved probability of CVD and potentially aggressive cancer risk reduction. Preventing prostate cancer via dietary supplements should encourage a "first do no harm," or less is more approach until future evidence can reverse the concerning trend that more supplementation has resulted in either no impact or an increased risk of prostate cancer. Supplements to reduce side effects of some cancer treatments appear to have more encouraging data. A discussion of quality (QC) before utilizing any pill also requires attention. Medications or interventions that potentially improve heart health including statins, aspirin, and metformin (S.A.M.), specific beta-blocker medications, and even preventive vaccines are in general generic, low-cost, "natural," and should continue to garner research interest. A watershed moment in medical education has arrived where the past perception of a diverse number of trees seemingly separated by vast distances, in reality, now appear to exist within the same forest.
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Vitamin D Deficiency and Sarcopenia in Older Persons. Nutrients 2019; 11:nu11122861. [PMID: 31766576 PMCID: PMC6950416 DOI: 10.3390/nu11122861] [Citation(s) in RCA: 194] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 11/18/2019] [Indexed: 12/18/2022] Open
Abstract
Vitamin D deficiency is a common health problem worldwide, in particular among older people. Vitamin D regulates and modulates the physiology and function of multiple human systems, including the skeletal muscle. The effect of vitamin D on the muscle has been widely investigated, suggesting that this hormone can stimulate the proliferation and differentiation of skeletal muscle fibers, maintaining and improving muscle strength and physical performance. Older persons have a higher prevalence of low Vitamin D levels as a consequence of low dietary intake and reduced ultraviolet irradiation of the skin. Therefore, older people with vitamin D deficiency might be at risk of sarcopenia, a geriatric syndrome characterized by the progressive loss of skeletal muscle mass and strength often complicated by adverse events, such as falls, disability hospitalization and death. Several randomized clinical trials have been conducted to investigate the effect of oral vitamin D supplementation in older patients to prevent or treat sarcopenia, but results are still controversial. In this narrative review we summarize the biological, clinical and epidemiological evidence supporting the hypothesis of a causal association between Vitamin D deficiency and an increased risk of sarcopenia in older people.
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Mesinovic J, Zengin A, De Courten B, Ebeling PR, Scott D. Sarcopenia and type 2 diabetes mellitus: a bidirectional relationship. Diabetes Metab Syndr Obes 2019. [PMID: 31372016 DOI: 10.2147/dmso.s186600[publishedonlinefirst:2019/08/03]] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
The incidence and prevalence of metabolic and musculoskeletal diseases are increasing. Type 2 diabetes mellitus (T2DM) is characterized by insulin resistance, inflammation, advanced glycation end-product accumulation and increased oxidative stress. These characteristics can negatively affect various aspects of muscle health, including muscle mass, strength, quality and function through impairments in protein metabolism, vascular and mitochondrial dysfunction, and cell death. Sarcopenia is a term used to describe the age-related loss in skeletal muscle mass and function and has been implicated as both a cause and consequence of T2DM. Sarcopenia may contribute to the development and progression of T2DM through altered glucose disposal due to low muscle mass, and also increased localized inflammation, which can arise through inter- and intramuscular adipose tissue accumulation. Lifestyle modifications are important for improving and maintaining mobility and metabolic health in individuals with T2DM and sarcopenia. However, evidence for the most effective and feasible exercise and dietary interventions in this population is lacking. In this review, we discuss the current literature highlighting the bidirectional relationship between T2DM and sarcopenia, highlight current research gaps and treatments, and provide recommendations for future research.
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Affiliation(s)
- Jakub Mesinovic
- Department of Medicine, School of Clinical Sciences at Monash Health, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Melbourne, VIC, Australia
| | - Ayse Zengin
- Department of Medicine, School of Clinical Sciences at Monash Health, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Melbourne, VIC, Australia
| | - Barbora De Courten
- Monash Centre for Health Research and Implementation, School of Public Health and Preventive Medicine, Monash University, Clayton, Melbourne, VIC, Australia
| | - Peter R Ebeling
- Department of Medicine, School of Clinical Sciences at Monash Health, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Melbourne, VIC, Australia
- Australian Institute for Musculoskeletal Science (AIMSS), Department of Medicine - Western Health, Melbourne Medical School, The University of Melbourne, St Albans, Melbourne, VIC, Australia
| | - David Scott
- Department of Medicine, School of Clinical Sciences at Monash Health, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Melbourne, VIC, Australia
- Australian Institute for Musculoskeletal Science (AIMSS), Department of Medicine - Western Health, Melbourne Medical School, The University of Melbourne, St Albans, Melbourne, VIC, Australia
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Mesinovic J, Zengin A, De Courten B, Ebeling PR, Scott D. Sarcopenia and type 2 diabetes mellitus: a bidirectional relationship. Diabetes Metab Syndr Obes 2019; 12:1057-1072. [PMID: 31372016 PMCID: PMC6630094 DOI: 10.2147/dmso.s186600] [Citation(s) in RCA: 334] [Impact Index Per Article: 55.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 05/07/2019] [Indexed: 12/05/2022] Open
Abstract
The incidence and prevalence of metabolic and musculoskeletal diseases are increasing. Type 2 diabetes mellitus (T2DM) is characterized by insulin resistance, inflammation, advanced glycation end-product accumulation and increased oxidative stress. These characteristics can negatively affect various aspects of muscle health, including muscle mass, strength, quality and function through impairments in protein metabolism, vascular and mitochondrial dysfunction, and cell death. Sarcopenia is a term used to describe the age-related loss in skeletal muscle mass and function and has been implicated as both a cause and consequence of T2DM. Sarcopenia may contribute to the development and progression of T2DM through altered glucose disposal due to low muscle mass, and also increased localized inflammation, which can arise through inter- and intramuscular adipose tissue accumulation. Lifestyle modifications are important for improving and maintaining mobility and metabolic health in individuals with T2DM and sarcopenia. However, evidence for the most effective and feasible exercise and dietary interventions in this population is lacking. In this review, we discuss the current literature highlighting the bidirectional relationship between T2DM and sarcopenia, highlight current research gaps and treatments, and provide recommendations for future research.
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Affiliation(s)
- Jakub Mesinovic
- Department of Medicine, School of Clinical Sciences at Monash Health, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Melbourne, VIC, Australia
- Correspondence: Jakub MesinovicDepartment of Medicine, School of Clinical Sciences at Monash Health, Faculty of Medicine, Nursing and Health Sciences, Monash University, 246 Clayton Road, Clayton, Victoria3068, AustraliaTel + 6 138 572 2919Fax + 6 139 594 6495Email
| | - Ayse Zengin
- Department of Medicine, School of Clinical Sciences at Monash Health, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Melbourne, VIC, Australia
| | - Barbora De Courten
- Monash Centre for Health Research and Implementation, School of Public Health and Preventive Medicine, Monash University, Clayton, Melbourne, VIC, Australia
| | - Peter R Ebeling
- Department of Medicine, School of Clinical Sciences at Monash Health, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Melbourne, VIC, Australia
- Australian Institute for Musculoskeletal Science (AIMSS), Department of Medicine - Western Health, Melbourne Medical School, The University of Melbourne, St Albans, Melbourne, VIC, Australia
| | - David Scott
- Department of Medicine, School of Clinical Sciences at Monash Health, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Melbourne, VIC, Australia
- Australian Institute for Musculoskeletal Science (AIMSS), Department of Medicine - Western Health, Melbourne Medical School, The University of Melbourne, St Albans, Melbourne, VIC, Australia
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