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Wang T, Zhou D, Hong Z. Adipose tissue in older individuals: a contributing factor to sarcopenia. Metabolism 2024; 160:155998. [PMID: 39128607 DOI: 10.1016/j.metabol.2024.155998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2024] [Revised: 08/05/2024] [Accepted: 08/06/2024] [Indexed: 08/13/2024]
Abstract
Sarcopenia is a geriatric syndrome characterized by a functional decline in muscle. The prevalence of sarcopenia increases with natural aging, becoming a serious health problem among elderly individuals. Therefore, understanding the pathology of sarcopenia is critical for inhibiting age-related alterations and promoting health and longevity in elderly individuals. The development of sarcopenia may be influenced by interactions between visceral and subcutaneous adipose tissue and skeletal muscle, particularly under conditions of chronic low-grade inflammation and metabolic dysfunction. This hypothesis is supported by the following observations: (i) accumulation of senescent cells in both adipose tissue and skeletal muscle with age; (ii) gut dysbiosis, characterized by an imbalance in gut microbial communities as the main trigger for inflammation, sarcopenia, and aged adipose tissue; and (iii) microbial dysbiosis, which could impact the onset or progression of a senescent state. Moreover, adipose tissue acts as an endocrine organ, releasing molecules that participate in intricate communication networks between organs. Our discussion focuses on novel adipokines and their role in regulating adipose tissue and muscle, particularly those influenced by aging and obesity, emphasizing their contributions to disease development. On the basis of these findings, we propose that age-related adipose tissue and sarcopenia are disorders characterized by chronic inflammation and metabolic dysregulation. Finally, we explore new potential therapeutic strategies involving specialized proresolving mediator (SPM) G protein-coupled receptor (GPCR) agonists, non-SPM GPCR agonists, transient receptor potential (TRP) channels, antidiabetic drugs in conjunction with probiotics and prebiotics, and compounds designed to target senescent cells and mitigate their pro-inflammatory activity.
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Affiliation(s)
- Tiantian Wang
- Department of Neurology, National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan, China; Institute of Brain Science and Brain-inspired Technology of West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Neurology, Chengdu Shangjin Nanfu Hospital, Chengdu, Sichuan, China.
| | - Dong Zhou
- Department of Neurology, National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan, China; Institute of Brain Science and Brain-inspired Technology of West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Neurology, Chengdu Shangjin Nanfu Hospital, Chengdu, Sichuan, China
| | - Zhen Hong
- Department of Neurology, National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan, China; Institute of Brain Science and Brain-inspired Technology of West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Neurology, Chengdu Shangjin Nanfu Hospital, Chengdu, Sichuan, China.
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Roman-Liu D, Kamińska J, Tokarski TM. Population-specific equations of age-related maximum handgrip force: a comprehensive review. PeerJ 2024; 12:e17703. [PMID: 39056055 PMCID: PMC11271657 DOI: 10.7717/peerj.17703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Accepted: 06/18/2024] [Indexed: 07/28/2024] Open
Abstract
Background The measurement of handgrip force responses is important in many aspects, for example: to complement neurological assessments, to investigate the contribution of muscle mass in predicting functional outcomes, in setting realistic treatment goals, evaluating rehabilitation strategies. Normative data about handgrip force can assist the therapist in interpreting a patient's results compared with healthy individuals of the same age and gender and can serve as key decision criteria. In this context, establishing normative values of handgrip strength is crucial. Hence, the aim of the this study is to develop a tool that could be used both in rehabilitation and in the prevention of work-related musculoskeletal disorders. This tool takes the form of population-specific predictive equations, which express maximum handgrip force as a function of age. Methodology In order to collect data from studies measuring maximum handgrip force, three databases were searched. The search yielded 5,058 articles. Upon the removal of duplicates, the screening of abstracts and the full-text review of potentially relevant articles, 143 publications which focussed on experimental studies on various age groups were considered as fulfilling the eligibility criteria. A comprehensive literature review produced 1,276 mean values of maximum handgrip force. Results A meta-analysis resulted in gender- and world region-specific (general population, USA, Europe and Asia) equations expressing maximum force as a function of age. The equations showed quantitative differences and trends in maximum handgrip force among age, gender and national groups. They also showed that values of maximum handgrip force are about 40% higher for males than for females and that age-induced decrease in force differs between males and females, with a proved 35% difference between the ages of 35 and 75. The difference was lowest for the 60-64 year olds and highest for the 18-25 year-olds. The equations also showed that differences due to region are smaller than those due to age or gender. Conclusions The equations that were developed for this study can be beneficial in setting population-specific thresholds for rehabilitation programmes and workstation exposure. They can also contribute to the modification of commonly used methods for assessing musculoskeletal load and work-related risk of developing musculoskeletal disorders by scaling their limit values.
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Affiliation(s)
- Danuta Roman-Liu
- Ergonomics, Central Institute for Labour Protection–National Research Institute, Warsaw, Poland
| | - Joanna Kamińska
- Ergonomics, Central Institute for Labour Protection–National Research Institute, Warsaw, Poland
| | - Tomasz Macjej Tokarski
- Ergonomics, Central Institute for Labour Protection–National Research Institute, Warsaw, Poland
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Yan D. Association between α-klotho levels and adults with COPD in the United States. Front Med (Lausanne) 2024; 11:1361922. [PMID: 39091285 PMCID: PMC11291460 DOI: 10.3389/fmed.2024.1361922] [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: 12/27/2023] [Accepted: 07/03/2024] [Indexed: 08/04/2024] Open
Abstract
Purpose Chronic obstructive pulmonary disease (COPD) is accompanied by increased inflammation, persistent lung function decline, and extensive lung injury. Klotho, a well-known antiaging protein, has anti-inflammatory and antioxidative effects. However, the effects of klotho on COPD have yet to be thoroughly elucidated. This study examined the association among COPD adults and their α-klotho level. Patients and methods Data were collected from the 2007 to 2012 National Health and Nutrition Examination Survey (NHANES). A total of 676 participants were analyzed and divided into COPD (n = 403) and non-COPD (n = 273) groups. The two groups were compared with respect to clinical characteristics. Logistic regression analysis and a generalized additive model were used to estimate the association between COPD incidence and serum α-klotho concentration. All COPD participants were stratified according to the levels of α-klotho (Q1: <687 pg./mL; Q2: 687-900 pg./mL; Q3: ≥900 pg./mL), and clinical characteristics were compared. Results Non-COPD individuals had higher α-klotho levels than did COPD individuals (863.09 ± 267.13 vs. 817.51 ± 302.20, p < 0.05). Logistic regression analysis revealed that the Q2 and Q3 layers had a lower risk of COPD than did the Q1 layer, with odds ratios (ORs) of 0.73 (0.50, 0.99) for Q2 and 0.58 (0.41, 0.86) for Q3 (p < 0.001). The generalized additive model showed that the risk of COPD gradually decreased with increasing α-klotho concentration when the α-klotho concentration < 1,500 pg./mL, while the risk of COPD increased as the α-klotho concentration increased to ≥1,500 pg./mL. Compared with individuals in the Q2 or Q3 groups, individuals with COPD in the Q1 group were more likely to be current smokers, have lower levels of erythrocytes, and have higher levels of creatinine and leukocytes. Conclusion Increased α-klotho levels were negatively correlated with the risk of COPD in participants over 40 years old with α-klotho <1,500 pg./mL. When α-klotho was ≥1,500 pg./mL, the risk of COPD increased as α-klotho levels increased. Pulmonary ventilation function and the number of hemocytes differed among COPD patients with different levels of α-klotho.
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Affiliation(s)
- Dan Yan
- Department of Pulmonary and Critical Care Medicine, Jinhua Municipal Central Hospital, The Affiliated Jinhua Hospital, College of Medicine, Zhejiang University, Jinhua, China
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Chiariello A, Conte G, Rossetti L, Trofarello L, Salvioli S, Conte M. Different roles of circulating and intramuscular GDF15 as markers of skeletal muscle health. Front Endocrinol (Lausanne) 2024; 15:1404047. [PMID: 38808117 PMCID: PMC11130406 DOI: 10.3389/fendo.2024.1404047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Accepted: 04/29/2024] [Indexed: 05/30/2024] Open
Abstract
Introduction Growth Differentiation Factor 15 (GDF15) is a mitokine expressed in response to various stresses whose circulating levels increase with age and are associated with numerous pathological conditions, including muscle wasting and sarcopenia. However, the use of circulating GDF15 (c-GDF15) as a biomarker of sarcopenia is still debated. Moreover, the role of GDF15 intracellular precursor, pro-GDF15, in human skeletal muscle (SM-GDF15) is not totally understood. In order to clarify these points, the association of both forms of GDF15 with parameters of muscle strength, body composition, metabolism and inflammation was investigated. Methods the levels of c-GDF15 and SM-GDF15 were evaluated in plasma and muscle biopsies, respectively, of healthy subjects (HS) and patients with lower limb mobility impairment (LLMI), either young (<40 years-old) or old (>70 years-old). Other parameters included in the analysis were Isometric Quadriceps Strength (IQS), BMI, lean and fat mass percentage, Vastus lateralis thickness, as well as circulating levels of Adiponectin, Leptin, Resistin, IGF-1, Insulin, IL6, IL15 and c-PLIN2. Principal Component Analysis (PCA), Canonical Discriminant Analysis (CDA) and Receiving Operating Characteristics (ROC) analysis were performed. Results c-GDF15 but not SM-GDF15 levels resulted associated with decreased IQS and IGF-1 levels in both HS and LLMI, while only in LLMI associated with increased levels of Resistin. Moreover, in LLMI both c-GDF15 and SM-GDF15 levels were associated with IL-6 levels, but interestingly SM-GDF15 is lower in LLMI with respect to HS. Furthermore, a discrimination of the four groups of subjects based on these parameters was possible with PCA and CDA. In particular HS, LLMI over 70 years or under 40 years of age were discriminated based on SM-GDF15, c-GDF15 and Insulin levels, respectively. Conclusion our data support the idea that c-GDF15 level could be used as a biomarker of decreased muscle mass and strength. Moreover, it is suggested that c-GDF15 has a different diagnostic significance with respect to SM-GDF15, which is likely linked to a healthy and active state.
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Affiliation(s)
- Antonio Chiariello
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Italy
| | - Giuseppe Conte
- Department of Agriculture, Food and Environment, University of Pisa, Pisa, Italy
| | - Luca Rossetti
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Italy
- Interdepartmental Centre “Alma Mater Research Institute on Global Challenges and Climate Change (Alma Climate)”, University of Bologna, Bologna, Italy
| | - Lorenzo Trofarello
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Italy
| | - Stefano Salvioli
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Italy
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Maria Conte
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Italy
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Huang W, Deng S, Liu S, Ma Q, Cao L, Liu L, Wan H, Shen J. Association of metabolic syndrome and sarcopenia with all-cause and cardiovascular mortality: a prospective cohort study based on the NHANES. Front Endocrinol (Lausanne) 2024; 15:1346669. [PMID: 38596221 PMCID: PMC11002088 DOI: 10.3389/fendo.2024.1346669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 03/12/2024] [Indexed: 04/11/2024] Open
Abstract
Background Metabolic syndrome (MetS) and sarcopenia (SP) have emerged as significant public health concerns in contemporary societies, characterized by shared pathophysiological mechanisms and interrelatedness, leading to profound health implications. In this prospective cohort study conducted within a US population, we aimed to examine the influence of MetS and SP on all-cause and cardiovascular mortality. Methods This study analyzed data from the National Health and Nutrition Examination Survey (NHANES) III for the years 1999-2006 and 2011-2018, and death outcomes were ascertained by linkage to National Death Index (NDI) records through December 31, 2019. Cox proportional hazard models were used to estimate hazard ratios (HRs) and 95% confidence intervals (95% CIs) for all-cause and cardiovascular mortality. In addition, subgroup and sensitivity analyses were conducted to test the robustness of the results. Results Over a median follow-up period of 13.3 years (95% CI: 12.8-13.8), 1714 deaths were observed. The groups characterized by MetS-/SP+, MetS+/SP-, and MetS+/SP+ exhibited higher all-cause mortality rates in comparison to the MetS-/SP- group, with the MetS+/SP+ group (HR 1.76, 95% CI: 1.37-2.25) displaying the highest all-cause mortality. Increased cardiovascular mortality was observed in the MetS+/SP- (HR 1.84, 95% CI: 1.24-2.72), and MetS+/SP+ groups (HR 2.39, 95% CI: 1.32-4.35) compared to the MetS-/SP- group, whereas it was not statistically significant in the MetS-/SP+ group. However, among males and individuals aged < 60, the presence of both MetS and SP (MetS+/SP+ group) was found to be significantly associated with a higher risk of all-cause and cardiovascular mortality. Conclusion The coexistence of MetS and SP increased the risk of all-cause and cardiovascular mortality, particularly in males and in nonelderly populations. Individuals with either MetS or SP may require more careful management to prevent the development of other diseases and thereby reduce mortality.
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Affiliation(s)
- Weihong Huang
- Department of Endocrinology and Metabolism, Shunde Hospital, Southern Medical University (The First People’s Hospital of Shunde), Foshan, Guangdong, China
| | - Siyi Deng
- Department of Cardiology, The First Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China
| | - Siyang Liu
- Department of Endocrinology and Metabolism, Shunde Hospital, Southern Medical University (The First People’s Hospital of Shunde), Foshan, Guangdong, China
| | - Qintao Ma
- Department of Endocrinology and Metabolism, Shunde Hospital, Southern Medical University (The First People’s Hospital of Shunde), Foshan, Guangdong, China
| | - Liting Cao
- Department of Endocrinology and Metabolism, Shunde Hospital, Southern Medical University (The First People’s Hospital of Shunde), Foshan, Guangdong, China
| | - Lan Liu
- Department of Endocrinology and Metabolism, Shunde Hospital, Southern Medical University (The First People’s Hospital of Shunde), Foshan, Guangdong, China
| | - Heng Wan
- Department of Endocrinology and Metabolism, Shunde Hospital, Southern Medical University (The First People’s Hospital of Shunde), Foshan, Guangdong, China
| | - Jie Shen
- Department of Endocrinology and Metabolism, Shunde Hospital, Southern Medical University (The First People’s Hospital of Shunde), Foshan, Guangdong, China
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de Luis D, Primo D, Izaola O, Gómez Hoyos E, López Gómez JJ. Relationship of circulating resistin levels with muscle mass determined by bioelectrical impedance in females with obesity. ENDOCRINOL DIAB NUTR 2023; 70:468-475. [PMID: 37516610 DOI: 10.1016/j.endien.2023.03.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 03/23/2023] [Indexed: 07/31/2023]
Abstract
INTRODUCTION Serum resistin levels have been associated with obesity, visceral fat, and insulin resistance. Its relationship with muscle mass has been less evaluated. OBJECTIVES to evaluate the relationship between muscle mass determined by electrical bioimpedance and circulating resistin levels in obese women over 60 years of age. METHODS We conducted a cross-sectional study in 313 obese women. Anthropometric data (weight, height, body mass index (BMI) and waist circumference), BIA parameters (total fat mass (TFM), fat-free mass (FFM), fat-free mass index (FFMI)), skeletal muscle mass (SMM) and skeletal muscle mass index (SMI)), blood pressure and laboratory tests were recorded. RESULTS Patients were divided into two different groups according to the mean value of SMI (11.93 kg/m2): low SMI versus high SMI. In the low SMI group, the resistin levels were higher than the resistin levels in the high SMI group (delta value: 2.8 + 0.3 ng/dl:p = 0.01). Serum resistin levels are inversely correlated with FFM, FFMI, SMM, and SMI. This adipokine shows a positive correlation with insulin, HOMA-IR and PCR levels. In the model with SMI as the dependent variable, resistin levels explained 12% of the variability in muscle mass (Beta -0.38, 95% CI -0.91 to -0.11). CONCLUSIONS Serum resistin levels are associated with low skeletal muscle mass in obese women over 60 years of age.
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Affiliation(s)
- Daniel de Luis
- Servicio de Endocrinología y Nutrición, Hospital Clínico Universitario de Valladolid, Valladolid, Spain; Centro de Investigación de Endocrinología y Nutrición (CIEN), Universidad de Valladolid, Valladolid, Spain.
| | - David Primo
- Servicio de Endocrinología y Nutrición, Hospital Clínico Universitario de Valladolid, Valladolid, Spain; Centro de Investigación de Endocrinología y Nutrición (CIEN), Universidad de Valladolid, Valladolid, Spain
| | - Olatz Izaola
- Servicio de Endocrinología y Nutrición, Hospital Clínico Universitario de Valladolid, Valladolid, Spain; Centro de Investigación de Endocrinología y Nutrición (CIEN), Universidad de Valladolid, Valladolid, Spain
| | - Emilia Gómez Hoyos
- Servicio de Endocrinología y Nutrición, Hospital Clínico Universitario de Valladolid, Valladolid, Spain; Centro de Investigación de Endocrinología y Nutrición (CIEN), Universidad de Valladolid, Valladolid, Spain
| | - Juan José López Gómez
- Servicio de Endocrinología y Nutrición, Hospital Clínico Universitario de Valladolid, Valladolid, Spain; Centro de Investigación de Endocrinología y Nutrición (CIEN), Universidad de Valladolid, Valladolid, Spain
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Raghupathy R, McLean RR, Kiel DP, Hannan MT, Sahni S. Higher abdominal adiposity is associated with higher lean muscle mass but lower muscle quality in middle-aged and older men and women: the Framingham Heart Study. Aging Clin Exp Res 2023; 35:1477-1485. [PMID: 37166563 PMCID: PMC10450777 DOI: 10.1007/s40520-023-02427-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 04/26/2023] [Indexed: 05/12/2023]
Abstract
BACKGROUND The objective was to determine if abdominal fat is related to poor muscle health. METHODS This cross-sectional study included 428 males and 534 females with appendicular lean mass (ALM, kg) from dual-energy X-ray absorptiometry (DXA), grip strength (kg), and upper extremity muscle "quality" (grip strength/arm lean mass) measured (1996-2001) in the Framingham Offspring Study. Sex-specific linear regressions associated adiposity measures [waist circumference (WC, cm) and visceral adipose tissue (VAT, cm3), and subcutaneous adipose tissue (SAT, cm3)] as Z-scores with each measure of muscle, adjusting for covariates. Models were further stratified by body mass index (BMI, < 30, ≥ 30 kg/m2). RESULTS Mean (± SD) age was 60 ± 9 years and BMI was 28.9 ± 4.6 kg/m2 (men) and 27.7 ± 5.8 kg/m2, (women). In men, the BMI-stratified analyses showed higher WC was associated with higher ALM (P < 0.0001 each) but with lower muscle quality (P < 0.02) in both BMI groups. Higher SAT was also associated with higher ALM (P = 0.0002) and lower muscle quality (P = 0.0002) in men with BMI < 30, but not in obese men. In women, higher WC, SAT, and VAT were each associated with higher ALM but lower muscle quality, particularly in obese women. Higher SAT (P = 0.05) and VAT (P = 0.04) were associated with higher quadriceps strength in women with BMI < 30 kg/m2 but not in obese women. CONCLUSIONS Higher abdominal fat may be associated with greater lean mass but poorer muscle quality, particularly in obese women. This suggests that adipose tissue may have endocrine influences on muscle, which should be confirmed in longitudinal studies.
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Affiliation(s)
- Rachana Raghupathy
- Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- Northeast Ohio Medical University, Rootstown, OH, USA
| | - Robert R McLean
- CorEvitas, LLC, Boston, MA, USA
- Hinda and Arthur Marcus Institute for Aging Research, Hebrew SeniorLife, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School Boston, Boston, MA, USA
| | - Douglas P Kiel
- Hinda and Arthur Marcus Institute for Aging Research, Hebrew SeniorLife, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School Boston, Boston, MA, USA
| | - Marian T Hannan
- Hinda and Arthur Marcus Institute for Aging Research, Hebrew SeniorLife, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School Boston, Boston, MA, USA
| | - Shivani Sahni
- Hinda and Arthur Marcus Institute for Aging Research, Hebrew SeniorLife, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School Boston, Boston, MA, USA.
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Capri M, Conte M, Ciurca E, Pirazzini C, Garagnani P, Santoro A, Longo F, Salvioli S, Lau P, Moeller R, Jordan J, Illig T, Villanueva MM, Gruber M, Bürkle A, Franceschi C, Rittweger J. Long-term human spaceflight and inflammaging: Does it promote aging? Ageing Res Rev 2023; 87:101909. [PMID: 36918115 DOI: 10.1016/j.arr.2023.101909] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 03/07/2023] [Accepted: 03/08/2023] [Indexed: 03/14/2023]
Abstract
Spaceflight and its associated stressors, such as microgravity, radiation exposure, confinement, circadian derailment and disruptive workloads represent an unprecedented type of exposome that is entirely novel from an evolutionary stand point. Within this perspective, we aimed to review the effects of prolonged spaceflight on immune-neuroendocrine systems, brain and brain-gut axis, cardiovascular system and musculoskeletal apparatus, highlighting in particular the similarities with an accelerated aging process. In particular, spaceflight-induced muscle atrophy/sarcopenia and bone loss, vascular and metabolic changes, hyper and hypo reaction of innate and adaptive immune system appear to be modifications shared with the aging process. Most of these modifications are mediated by molecular events that include oxidative and mitochondrial stress, autophagy, DNA damage repair and telomere length alteration, among others, which directly or indirectly converge on the activation of an inflammatory response. According to the inflammaging theory of aging, such an inflammatory response could be a driver of an acceleration of the normal, physiological rate of aging and it is likely that all the systemic modifications in turn lead to an increase of inflammaging in a sort of vicious cycle. The most updated countermeasures to fight these modifications will be also discussed in the light of their possible application not only for astronauts' benefit, but also for older adults on the ground.
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Affiliation(s)
- Miriam Capri
- Department of Medical and Surgical Science, University of Bologna, Bologna, Italy; Alma Mater Research Institute on Global Challenges and Climate Change (Alma Climate), University of Bologna, Bologna, Italy
| | - Maria Conte
- Department of Medical and Surgical Science, University of Bologna, Bologna, Italy; Alma Mater Research Institute on Global Challenges and Climate Change (Alma Climate), University of Bologna, Bologna, Italy.
| | - Erika Ciurca
- Department of Medical and Surgical Science, University of Bologna, Bologna, Italy
| | - Chiara Pirazzini
- Department of Medical and Surgical Science, University of Bologna, Bologna, Italy
| | - Paolo Garagnani
- Department of Medical and Surgical Science, University of Bologna, Bologna, Italy; Alma Mater Research Institute on Global Challenges and Climate Change (Alma Climate), University of Bologna, Bologna, Italy; Clinical Chemistry Department of Laboratory Medicine, Karolinska Institutet at Huddinge University Hospital, Stockholm, Sweden; CNR Institute of Molecular Genetics, Unit of Bologna, Bologna, Italy; Center for Applied Biomedical Research (CRBA), St. Orsola-Malpighi University Hospital, Bologna, Italy
| | - Aurelia Santoro
- Department of Medical and Surgical Science, University of Bologna, Bologna, Italy; Alma Mater Research Institute on Global Challenges and Climate Change (Alma Climate), University of Bologna, Bologna, Italy
| | - Federica Longo
- Department of Medical and Surgical Science, University of Bologna, Bologna, Italy
| | - Stefano Salvioli
- Department of Medical and Surgical Science, University of Bologna, Bologna, Italy; IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Patrick Lau
- Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany
| | - Ralf Moeller
- Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany
| | - Jens Jordan
- Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany; Medical Faculty, University of Cologne, Cologne, Germany
| | - Thomas Illig
- Department of Human Genetics, Hannover Medical School, Hannover, Germany
| | - Maria-Moreno Villanueva
- Human Performance Research Centre, Department of Sport Science, University of Konstanz, Konstanz, Germany
| | - Markus Gruber
- Human Performance Research Centre, Department of Sport Science, University of Konstanz, Konstanz, Germany
| | - Alexander Bürkle
- Department of Biology, University of Konstanz, Konstanz, Germany
| | - Claudio Franceschi
- Department of Applied Mathematics of the Institute of ITMM, National Research Lobachevsky State University of Nizhny Novgorod, the Russian Federation
| | - Jörn Rittweger
- Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany; Department of Pediatrics and Adolescent Medicine, University of Cologne, Cologne, Germany
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Yoshiko A, Ohta M, Kuramochi R, Mitsuyama H. Serum Adiponectin and Leptin Is Not Related to Skeletal Muscle Morphology and Function in Young Women. J Endocr Soc 2023; 7:bvad032. [PMID: 36911319 PMCID: PMC9998031 DOI: 10.1210/jendso/bvad032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Indexed: 03/03/2023] Open
Abstract
Adipokines secreted from adipose tissue, such as adiponectin and leptin, enhance skeletal muscle metabolism. Animal studies have shown that adipokine knockout leads to a reduction in muscle function. Muscle function is determined by muscle size and quality; therefore, it is speculated that lower adipokine levels affect skeletal muscle size and quality, eventually leading to lower muscle function. This study aimed to investigate the relationship between adipokines and skeletal muscle morphology and function in young individuals. A total of 21 young women participated in this study. Adiponectin and leptin levels were analyzed using fasting blood samples from all participants. B-mode ultrasound images of the thigh and calf were obtained, and the muscle thickness and echo intensity were measured in the vastus lateralis (VL) and medial gastrocnemius (MG). The shear modulus was measured from the VL and MG using shear wave elastography. Knee extension and plantar flexion peak torques were measured as muscle functions. Adiponectin and leptin were not related to echo intensity, shear modulus, and muscle thickness in the VL and MG (rs = -0.26-0.37, P > .05). Furthermore, no relationship was observed between adiponectin, leptin, knee extension, and dorsiflexion peak torque (rs = -0.28-0.41, P > .05). These negative results suggest that adiponectin and leptin levels in young women are not associated with muscle size and quality, nor are they related to muscle function.
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Affiliation(s)
- Akito Yoshiko
- Faculty of Liberal Arts and Sciences, Chukyo University, Toyota 470-0393, Japan
| | - Megumi Ohta
- Faculty of Liberal Arts and Sciences, Chukyo University, Toyota 470-0393, Japan
| | - Rieko Kuramochi
- School of Health and Sport Sciences, Chukyo University, Toyota 470-0393, Japan
| | - Hirohito Mitsuyama
- School of Health and Sport Sciences, Chukyo University, Toyota 470-0393, Japan
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10
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Liu C, Cheng KYK, Tong X, Cheung WH, Chow SKH, Law SW, Wong RMY. The role of obesity in sarcopenia and the optimal body composition to prevent against sarcopenia and obesity. Front Endocrinol (Lausanne) 2023; 14:1077255. [PMID: 36936175 PMCID: PMC10016224 DOI: 10.3389/fendo.2023.1077255] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Accepted: 02/14/2023] [Indexed: 03/08/2023] Open
Abstract
Background Elderly people with low lean and high fat mass, are diagnosed with sarcopenic obesity (SO), and often have poor clinical outcomes. This study aimed to explore the relationship between obesity and sarcopenia, and the optimal proportion of fat and muscle for old individuals. Methods Participants aged 60 years or above were instructed to perform bioelectrical impedance analysis to obtain the muscle and fat indicators, and handgrip strength was also performed. Sarcopenia was diagnosed according to predicted appendicular skeletal muscle mass and function. Body mass index (BMI) and body fat percentage (BF%) were used to define obesity. The association of muscle and fat indicators were analyzed by Pearson's correlation coefficient. Pearson Chi-Square test was utilized to estimate odds ratios (OR) and 95% confidence intervals (CI) on the risk of sarcopenia according to obesity status. Results 1637 old subjects (74.8 ± 7.8 years) participated in this study. Not only fat mass, but also muscle indicators were positively correlated to BMI and body weight (p < 0.05). Absolute muscle and fat mass in different positions had positive associations (p < 0.05). Muscle mass and strength were negatively related to appendicular fat mass percentage (p < 0.05). When defined by BMI (OR = 0.69, 95% CI [0.56, 0.86]; p = 0.001), obesity was a protective factor for sarcopenia, whilst it was a risk factor when using BF% (OR = 1.38, 95% CI [1.13, 1.69]; p = 0.002) as the definition. The risk of sarcopenia reduced with the increase of BMI in both genders. It was increased with raised BF% in males but displayed a U-shaped curve for females. BF% 26.0-34.6% in old females and lower than 23.9% in old males are recommended for sarcopenia and obesity prevention. Conclusion Skeletal muscle mass had strong positive relationship with absolute fat mass but negative associations with the percentage of appendicular fat mass. Obesity was a risk factor of sarcopenia when defined by BF% instead of BMI. The management of BF% can accurately help elderly people prevent against both sarcopenia and obesity.
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Affiliation(s)
- Chaoran Liu
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Keith Yu-Kin Cheng
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Xin Tong
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Wing-Hoi Cheung
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Simon Kwoon-Ho Chow
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Sheung Wai Law
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Ronald Man Yeung Wong
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
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11
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Liu C, Wong PY, Chung YL, Chow SKH, Cheung WH, Law SW, Chan JCN, Wong RMY. Deciphering the "obesity paradox" in the elderly: A systematic review and meta-analysis of sarcopenic obesity. Obes Rev 2023; 24:e13534. [PMID: 36443946 DOI: 10.1111/obr.13534] [Citation(s) in RCA: 43] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 10/20/2022] [Accepted: 11/16/2022] [Indexed: 11/30/2022]
Abstract
Aging and obesity are two global concerns in public health. Sarcopenic obesity (SO), defined as the combination of age-related sarcopenia and obesity, has become a pressing issue. This systematic review and meta-analysis summarize the current clinical evidence relevant to SO. PubMed, Embase, and Web of Science were searched, and 106 clinical studies with 167,151 elderlies were included. The estimated prevalence of SO was 9% in both men and women. Obesity was associated with 34% reduced risk of sarcopenia (odds ratio [OR] 0.66, 95% CI 0.48-0.91; p < 0.001). The pooled hazard ratio (HR) of all-cause mortality was 1.51 (95% CI 1.14-2.02; p < 0.001) for people with SO compared with healthy individuals. SO was associated with increased risk of cardiovascular disease and related mortality, metabolic disorders, cognitive impairment, arthritis, functional limitation, and lung diseases (all ORs > 1.0, p < 0.05). The attenuated risk of sarcopenia in elderlies with obesity ("obesity paradox") was dependent on higher muscle mass and strength. Apart from unifying the diagnosis of SO, more research is needed to subphenotype people with obesity and sarcopenia for individualized treatment. Meanwhile, the maintenance of proper body composition of muscle and fat may delay or attenuate the adverse outcomes of aging.
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Affiliation(s)
- Chaoran Liu
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Pui Yan Wong
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Yik Lok Chung
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Simon Kwoon-Ho Chow
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Wing Hoi Cheung
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Sheung Wai Law
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Juliana Chung Ngor Chan
- Department of Medicine & Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Ronald Man Yeung Wong
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
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12
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Baad VMA, Bezerra LR, de Holanda NCP, dos Santos ACO, da Silva AAM, Bandeira F, Cavalcante TCF. Body Composition, Sarcopenia and Physical Performance After Bariatric Surgery: Differences Between Sleeve Gastrectomy and Roux-En-Y Gastric Bypass. Obes Surg 2022; 32:3830-3838. [DOI: 10.1007/s11695-022-06335-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 10/18/2022] [Accepted: 10/18/2022] [Indexed: 11/30/2022]
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13
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Gu X, Wang W, Yang Y, Lei Y, Liu D, Wang X, Wu T. The Effect of Metabolites on Mitochondrial Functions in the Pathogenesis of Skeletal Muscle Aging. Clin Interv Aging 2022; 17:1275-1295. [PMID: 36033236 PMCID: PMC9416380 DOI: 10.2147/cia.s376668] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 08/11/2022] [Indexed: 11/23/2022] Open
Abstract
Sarcopenia is an age-related systemic disease characterized by skeletal muscle aging that generally severely affects the quality of life of elderly patients. Metabolomics analysis is a powerful tool for qualitatively and quantitatively characterizing the small molecule metabolomics of various biological matrices in order to clarify all key scientific problems concerning cell metabolism. The discovery of optimal therapy requires a thorough understanding of the cellular metabolic mechanism of skeletal muscle aging. In this review, the relationship between skeletal muscle mitochondria, amino acid, vitamin, lipid, adipokines, intestinal microbiota and vascular microenvironment has been separately reviewed from the perspective of metabolomics, and a new therapeutic direction has been suggested.
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Affiliation(s)
- Xuchao Gu
- Department of Traditional Chinese Medicine, Huadong Hospital Affiliated to Fudan University, Shanghai, 200040, People's Republic of China.,Shanghai Key Laboratory of Clinical Geriatric Medicine, Huadong Hospital Affiliated to Fudan University, Shanghai, 200040, People's Republic of China
| | - Wenhao Wang
- Department of Traditional Chinese Medicine, Huadong Hospital Affiliated to Fudan University, Shanghai, 200040, People's Republic of China.,Shanghai Key Laboratory of Clinical Geriatric Medicine, Huadong Hospital Affiliated to Fudan University, Shanghai, 200040, People's Republic of China
| | - Yijing Yang
- Department of Traditional Chinese Medicine, Huadong Hospital Affiliated to Fudan University, Shanghai, 200040, People's Republic of China.,Shanghai Key Laboratory of Clinical Geriatric Medicine, Huadong Hospital Affiliated to Fudan University, Shanghai, 200040, People's Republic of China
| | - Yiming Lei
- Department of Traditional Chinese Medicine, Huadong Hospital Affiliated to Fudan University, Shanghai, 200040, People's Republic of China.,Shanghai Key Laboratory of Clinical Geriatric Medicine, Huadong Hospital Affiliated to Fudan University, Shanghai, 200040, People's Republic of China
| | - Dehua Liu
- Department of Traditional Chinese Medicine, Huadong Hospital Affiliated to Fudan University, Shanghai, 200040, People's Republic of China.,Shanghai Key Laboratory of Clinical Geriatric Medicine, Huadong Hospital Affiliated to Fudan University, Shanghai, 200040, People's Republic of China
| | - Xiaojun Wang
- Department of Traditional Chinese Medicine, Huadong Hospital Affiliated to Fudan University, Shanghai, 200040, People's Republic of China.,Shanghai Key Laboratory of Clinical Geriatric Medicine, Huadong Hospital Affiliated to Fudan University, Shanghai, 200040, People's Republic of China
| | - Tao Wu
- Department of Traditional Chinese Medicine, Huadong Hospital Affiliated to Fudan University, Shanghai, 200040, People's Republic of China.,Shanghai Key Laboratory of Clinical Geriatric Medicine, Huadong Hospital Affiliated to Fudan University, Shanghai, 200040, People's Republic of China
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14
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Gao J, Deng M, Li Y, Yin Y, Zhou X, Zhang Q, Hou G. Resistin as a Systemic Inflammation-Related Biomarker for Sarcopenia in Patients With Chronic Obstructive Pulmonary Disease. Front Nutr 2022; 9:921399. [PMID: 35903456 PMCID: PMC9315354 DOI: 10.3389/fnut.2022.921399] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 06/03/2022] [Indexed: 12/16/2022] Open
Abstract
Background Sarcopenia is common in patients with chronic obstructive pulmonary disease (COPD) and is mainly caused by systemic inflammation. Resistin acts as a proinflammatory cytokine and is involved in the activation of multiple inflammatory signaling pathways. The aim of this study was to determine the relationship between resistin levels and systemic inflammation and to assess the clinical value of circulating resistin for sarcopenia in patients with COPD. Methods In this prospective observational study, we enrolled 235 patients with COPD who were divided into development and validation sets. The definition of sarcopenia followed the guidelines from the Asian Working Group for Sarcopenia. Serum concentrations of resistin and TNF-α were measured using an enzyme-linked immunosorbent assay (ELISA). Results In this study, higher serum resistin levels were significantly associated with lower skeletal muscle mass and muscular strength. The serum resistin levels in patients with sarcopenia were significantly higher than those in patients without sarcopenia. The serum resistin level had positive correlations with the serum TNF-α level (r = 0.250, p = 0.007). The predictive efficacy of the serum resistin level (AUC: 0.828) for sarcopenia was superior to that of the serum TNF-α level (AUC: 0.621). The cutoff point (7.138 ng/ml) for the serum resistin level was validated in the validation set (AUC: 0.818). Conclusions Serum resistin levels were associated with systemic inflammation and can be used accurately and easily to predict sarcopenia in patients with COPD.
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Affiliation(s)
- Jinghan Gao
- Department of Pulmonary and Critical Care Medicine, First Hospital of China Medical University, Shenyang, China
| | - Mingming Deng
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, China
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
- National Center for Respiratory Medicine, Beijing, China
- Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing, China
- National Clinical Research Center for Respiratory Diseases, Beijing, China
| | - Yanxia Li
- Respiratory Department, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Yan Yin
- Department of Pulmonary and Critical Care Medicine, First Hospital of China Medical University, Shenyang, China
| | - Xiaoming Zhou
- Department of Pulmonary and Critical Care Medicine, Disease, Fuwai Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Qin Zhang
- Department of Pulmonary and Critical Care Medicine, First Hospital of China Medical University, Shenyang, China
| | - Gang Hou
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, China
- National Center for Respiratory Medicine, Beijing, China
- Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing, China
- National Clinical Research Center for Respiratory Diseases, Beijing, China
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15
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Priyadarsini N, Nanda P, Devi S, Mohapatra S. Sarcopenia: An Age-Related Multifactorial Disorder. Curr Aging Sci 2022; 15:209-217. [PMID: 35249518 DOI: 10.2174/1874609815666220304194539] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 12/22/2021] [Accepted: 12/28/2021] [Indexed: 11/22/2022]
Abstract
Sarcopenia is an emerging clinical entity characterized by a gradual decline in skeletal muscle mass and strength that accompanies the normal aging process. It has been noted that sarcopenia is associated with various adverse health outcomes in the geriatric population like prolonged hospital admission, disability, poor quality of life, frailty, and mortality. Factors involved in the development of age-related sarcopenia include anorexia, alteration in the hormone levels, decreased neural innervation, low blood flow to the muscles, cytokine dysregulation, altered mitochondrial activity, genomic instability, intracellular proteolysis, and insulin resistance. Understanding the mechanism may help develop efficient preventive and therapeutic strategies which can improve the quality of life in elderly individuals. Thus, the objective of the present article is to review the literature regarding the mechanism involved in the development of sarcopenia in aged individuals.
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Affiliation(s)
- Nibedita Priyadarsini
- Department of Physiology, All India Institute of Medical Sciences, Bhubaneswar, India
| | - Pranati Nanda
- Department of Physiology, All India Institute of Medical Sciences, Bhubaneswar, India
| | - Sujata Devi
- Department of Medicine, All India Institute of Medical Sciences, Bhubaneswar, India
| | - Subarna Mohapatra
- Department of Physiology, All India Institute of Medical Sciences, Bhubaneswar, India
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16
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Bilski J, Pierzchalski P, Szczepanik M, Bonior J, Zoladz JA. Multifactorial Mechanism of Sarcopenia and Sarcopenic Obesity. Role of Physical Exercise, Microbiota and Myokines. Cells 2022; 11:cells11010160. [PMID: 35011721 PMCID: PMC8750433 DOI: 10.3390/cells11010160] [Citation(s) in RCA: 57] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/27/2021] [Accepted: 12/31/2021] [Indexed: 02/07/2023] Open
Abstract
Obesity and ageing place a tremendous strain on the global healthcare system. Age-related sarcopenia is characterized by decreased muscular strength, decreased muscle quantity, quality, and decreased functional performance. Sarcopenic obesity (SO) is a condition that combines sarcopenia and obesity and has a substantial influence on the older adults’ health. Because of the complicated pathophysiology, there are disagreements and challenges in identifying and diagnosing SO. Recently, it has become clear that dysbiosis may play a role in the onset and progression of sarcopenia and SO. Skeletal muscle secretes myokines during contraction, which play an important role in controlling muscle growth, function, and metabolic balance. Myokine dysfunction can cause and aggravate obesity, sarcopenia, and SO. The only ways to prevent and slow the progression of sarcopenia, particularly sarcopenic obesity, are physical activity and correct nutritional support. While exercise cannot completely prevent sarcopenia and age-related loss in muscular function, it can certainly delay development and slow down the rate of sarcopenia. The purpose of this review was to discuss potential pathways to muscle deterioration in obese individuals. We also want to present the current understanding of the role of various factors, including microbiota and myokines, in the process of sarcopenia and SO.
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Affiliation(s)
- Jan Bilski
- Department of Biomechanics and Kinesiology, Chair of Biomedical Sciences, Faculty of Health Sciences, Institute of Physiotherapy, Jagiellonian University Medical College, 31-008 Krakow, Poland
- Correspondence: ; Tel.: +48-12-421-93-51
| | - Piotr Pierzchalski
- Department of Medical Physiology, Chair of Biomedical Sciences, Faculty of Health Sciences, Institute of Physiotherapy, Jagiellonian University Medical College, 31-126 Krakow, Poland; (P.P.); (J.B.)
| | - Marian Szczepanik
- Department of Medical Biology, Chair of Biomedical Sciences, Faculty of Health Sciences, Institute of Physiotherapy, Jagiellonian University Medical College, 31-034 Krakow, Poland;
| | - Joanna Bonior
- Department of Medical Physiology, Chair of Biomedical Sciences, Faculty of Health Sciences, Institute of Physiotherapy, Jagiellonian University Medical College, 31-126 Krakow, Poland; (P.P.); (J.B.)
| | - Jerzy A. Zoladz
- Chair of Exercise Physiology and Muscle Bioenergetics, Faculty of Health Sciences, Jagiellonian University Medical College, 31-066 Krakow, Poland;
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17
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Yildirim S, Colak T, Bayraktar N, Sezer S. Evaluation of Dynapenia and Sarcopenia and Their Associations With Serum Insulin-Like Growth Factor-1 Levels in Renal Transplant Recipients. J Ren Nutr 2021; 32:354-362. [PMID: 34716090 DOI: 10.1053/j.jrn.2021.08.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 08/09/2021] [Accepted: 08/11/2021] [Indexed: 01/17/2023] Open
Abstract
OBJECTIVES Dynapenia and sarcopenia are related to increased morbidity and mortality in the general population. Chronic kidney disease (CKD) causes sarcopenia and dynapenia with different mechanisms. The aim of this study is to compare the muscle parameters in renal transplant recipients to CKD patients and patients without kidney disease and assess their associations with serum insulin-like growth factor-1 (IGF-1) levels. METHOD In total, 120 renal transplant recipients (mean age: 40.4 ± 10.5 years), 60 CKD patients (mean age: 41.9 ± 11.4 years), and 60 control subjects with normal kidney function (mean age: 38.8 ± 9.9 years) were enrolled. Body mass index, hand grip strength, bioelectrical impedance analysis, 6-minute walking test, and serum IGF-1 level were measured and compared between groups. Muscle parameters were evaluated according to The Foundation for the National Institutes of Health Biomarkers Consortium Sarcopenia Project criteria. RESULTS IGF-1 levels were highest in the renal transplantation group and lowest in the control group (P = .029). In total, 12.5% of patients in the renal transplantation group (13.3% overweight, 20% obese), 11.6% in the CKD group, and 1.6% in the control group had dynapenia (P = .015). In addition, 8.3% of patients in the CKD group, 3.3% in the renal transplantation group (50% overweight), and none of the patients in the control group had sarcopenia (P = .054). In multivariate analyses, muscle strength was associated with IGF-1 levels in renal transplant recipients (beta = 2.314, t = 3.456, P = .001). CONCLUSIONS Serum IGF-1 is closely associated with muscle strength in renal transplant recipients. The negative effects of CKD on muscle system cannot be completely resolved with renal transplantation. Sarcopenic obesity and dynapenic obesity need special attention and therefore body mass index cannot be used as the only parameter to evaluate frailty in renal transplant recipients.
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Affiliation(s)
- Saliha Yildirim
- Baskent University Faculty of Medicine, Internal Medicine Department, Ankara, Turkey.
| | - Turan Colak
- Baskent University Faculty of Medicine, Nephrology Department, Ankara, Turkey
| | - Nilufer Bayraktar
- Baskent University Faculty of Medicine, Biochemistry Department, Ankara, Turkey
| | - Siren Sezer
- Baskent University Faculty of Medicine, Nephrology Department, Ankara, Turkey
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18
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Lu W, Xiao W, Xie W, Fu X, Pan L, Jin H, Yu Y, Zhang Y, Li Y. The Role of Osteokines in Sarcopenia: Therapeutic Directions and Application Prospects. Front Cell Dev Biol 2021; 9:735374. [PMID: 34650980 PMCID: PMC8505767 DOI: 10.3389/fcell.2021.735374] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 09/07/2021] [Indexed: 12/14/2022] Open
Abstract
Sarcopenia is an age-related disease in which muscle mass, strength and function may decline with age or can be secondary to cachexia or malnutrition and can lead to weakness, falls and even death. With the increase in life expectancy, sarcopenia has become a major threat to the health of the elderly. Currently, our understanding of bone-muscle interactions is not limited to their mechanical coupling. Bone and muscle have been identified as secretory endocrine organs, and their interaction may affect the function of each. Both muscle-derived factors and osteokines can play a role in regulating muscle and bone metabolism via autocrine, paracrine and endocrine mechanisms. Herein, we comprehensively summarize the latest research progress on the effects of the osteokines FGF-23, IGF-1, RANKL and osteocalcin on muscle to explore whether these cytokines can be utilized to treat and prevent sarcopenia.
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Affiliation(s)
- Wenhao Lu
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Wenfeng Xiao
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Wenqing Xie
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Xin Fu
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Linyuan Pan
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Hongfu Jin
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Yongle Yu
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Yi Zhang
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Yusheng Li
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
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19
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Takao N, Kurose S, Miyauchi T, Onishi K, Tamanoi A, Tsuyuguchi R, Fujii A, Yoshiuchi S, Takahashi K, Tsutsumi H, Kimura Y. The relationship between changes in serum myostatin and adiponectin levels in patients with obesity undergoing a weight loss program. BMC Endocr Disord 2021; 21:147. [PMID: 34233657 PMCID: PMC8265051 DOI: 10.1186/s12902-021-00808-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 06/25/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND An effective strategy for weight loss in patients who are overweight or obese is to reduce body fat mass while maintaining skeletal muscle mass. Adiponectin and myostatin are affected through changes in body composition due to weight loss, and examining their dynamics may contribute to strategies for maintaining skeletal muscle mass through weight loss. We aimed to examine the relationships among myostatin, adiponectin, and body composition, depending on the extent of weight loss, in patients with obesity undergoing a weight loss program. METHODS We examined 66 patients with obesity (age: 46.8 ± 14.0 years, body mass index: 34.3 [31.0-38.4] kg/m2) attending a hospital weight loss program. We categorized the patients into two groups, namely an L group (those with a weight reduction of < 5% from baseline) and an M group (those with a weight reduction of > 5% from baseline). All patients underwent blood tests and were assessed for body composition, insulin resistance, adipocytokine and myokine levels, exercise tolerance, and muscle strength at baseline and post-intervention. RESULTS Serum myostatin and adiponectin levels increased post-intervention in both groups. Body weight and %fat decreased, and the rate of lean body mass (%LBM) increased in both groups. Exercise capacity and muscle strength improved in the M group only. Change in (⊿) myostatin correlated with ⊿%fat, ⊿%LBM, and ⊿adiponectin. ⊿adiponectin (β = - 0.262, p = 0.035) was an independent predictor of ⊿myostatin. CONCLUSIONS Myostatin and adiponectin might cross-talk and regulate changes in skeletal muscle and fat mass with or without successful weight loss. These findings indicate that evaluating serum myostatin and adiponectin levels in clinical practice could be used to predict the effects of weight loss and help prevent skeletal muscle mass loss.
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Affiliation(s)
- Nana Takao
- Department of Health Science, Graduate School of Medicine, Kansai Medical University, 2-5-1, Shinmachi, Hirakata, 573-1010, Japan.
- Health Science Center, Kansai Medical University Hospital, 2-3-1, Shinmachi, Hirakata, 573-1191, Japan.
| | - Satoshi Kurose
- Department of Health Science, Kansai Medical University, 2-5-1, Shinmachi, Hirakata, 573-1010, Japan
| | - Takumi Miyauchi
- Department of Health Science, Graduate School of Medicine, Kansai Medical University, 2-5-1, Shinmachi, Hirakata, 573-1010, Japan
- Health Science Center, Kansai Medical University Hospital, 2-3-1, Shinmachi, Hirakata, 573-1191, Japan
| | - Katsuko Onishi
- Department of Health Science, Kansai Medical University, 2-5-1, Shinmachi, Hirakata, 573-1010, Japan
| | - Atsuko Tamanoi
- Health Science Center, Kansai Medical University Hospital, 2-3-1, Shinmachi, Hirakata, 573-1191, Japan
| | - Ryota Tsuyuguchi
- Department of Health Science, Graduate School of Medicine, Kansai Medical University, 2-5-1, Shinmachi, Hirakata, 573-1010, Japan
| | - Aya Fujii
- Department of Health Science, Graduate School of Medicine, Kansai Medical University, 2-5-1, Shinmachi, Hirakata, 573-1010, Japan
- Health Science Center, Kansai Medical University Hospital, 2-3-1, Shinmachi, Hirakata, 573-1191, Japan
| | - Sawako Yoshiuchi
- Department of Nutrition Management, Kansai Medical University Hospital, 2-3-1, Shinmachi, Hirakata, 573-1191, Japan
| | - Kazuhisa Takahashi
- Department of Medicine II, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka, Japan
| | - Hiromi Tsutsumi
- Department of Health Science, Kansai Medical University, 2-5-1, Shinmachi, Hirakata, 573-1010, Japan
| | - Yutaka Kimura
- Health Science Center, Kansai Medical University Hospital, 2-3-1, Shinmachi, Hirakata, 573-1191, Japan
- Department of Health Science, Kansai Medical University, 2-5-1, Shinmachi, Hirakata, 573-1010, Japan
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20
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Wilhelmsen A, Tsintzas K, Jones SW. Recent advances and future avenues in understanding the role of adipose tissue cross talk in mediating skeletal muscle mass and function with ageing. GeroScience 2021; 43:85-110. [PMID: 33528828 PMCID: PMC8050140 DOI: 10.1007/s11357-021-00322-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 01/01/2021] [Indexed: 12/15/2022] Open
Abstract
Sarcopenia, broadly defined as the age-related decline in skeletal muscle mass, quality, and function, is associated with chronic low-grade inflammation and an increased likelihood of adverse health outcomes. The regulation of skeletal muscle mass with ageing is complex and necessitates a delicate balance between muscle protein synthesis and degradation. The secretion and transfer of cytokines, long non-coding RNAs (lncRNAs) and microRNAs (miRNAs), both discretely and within extracellular vesicles, have emerged as important communication channels between tissues. Some of these factors have been implicated in regulating skeletal muscle mass, function, and pathologies and may be perturbed by excessive adiposity. Indeed, adipose tissue participates in a broad spectrum of inter-organ communication and obesity promotes the accumulation of macrophages, cellular senescence, and the production and secretion of pro-inflammatory factors. Pertinently, age-related sarcopenia has been reported to be more prevalent in obesity; however, such effects are confounded by comorbidities and physical activity level. In this review, we provide evidence that adiposity may exacerbate age-related sarcopenia and outline some emerging concepts of adipose-skeletal muscle communication including the secretion and processing of novel myokines and adipokines and the role of extracellular vesicles in mediating inter-tissue cross talk via lncRNAs and miRNAs in the context of sarcopenia, ageing, and obesity. Further research using advances in proteomics, transcriptomics, and techniques to investigate extracellular vesicles, with an emphasis on translational, longitudinal human studies, is required to better understand the physiological significance of these factors, the impact of obesity upon them, and their potential as therapeutic targets in combating muscle wasting.
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Affiliation(s)
- Andrew Wilhelmsen
- MRC Versus Arthritis Centre for Musculoskeletal Ageing Research, School of Life Sciences, University of Nottingham, Queen's Medical Centre, Nottingham, UK
| | - Kostas Tsintzas
- MRC Versus Arthritis Centre for Musculoskeletal Ageing Research, School of Life Sciences, University of Nottingham, Queen's Medical Centre, Nottingham, UK.
| | - Simon W Jones
- Institute of Inflammation and Ageing, MRC Versus Arthritis Centre for Musculoskeletal Ageing Research, Queen Elizabeth Hospital, The University of Birmingham, Birmingham, UK
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Komici K, Dello Iacono A, De Luca A, Perrotta F, Bencivenga L, Rengo G, Rocca A, Guerra G. Adiponectin and Sarcopenia: A Systematic Review With Meta-Analysis. Front Endocrinol (Lausanne) 2021; 12:576619. [PMID: 33935962 PMCID: PMC8082154 DOI: 10.3389/fendo.2021.576619] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 03/17/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Sarcopenia is a progressive loss of skeletal muscle mass whose pathophysiology has been proposed to possibly involve mechanisms of altered inflammatory status and endocrine function. Adiponectin has been shown to modulate inflammatory status and muscle metabolism. However, the possible association between adiponectin levels and sarcopenia is poorly understood. In order to fill this gap, in the present manuscript we aimed to summarize the current evidence with a systematic review and a meta-analysis of studies reporting serum adiponectin levels in patients with sarcopenia compared to non-sarcopenic controls. METHODS An electronic search through Medline/PubMed, Cochrane Library, and Science Direct was performed till March 1, 2020. From the included papers, meta-analysis of cross-sectional studies comparing serum levels of adiponectin between patients with sarcopenia and controls was performed. RESULTS Out of 1,370 initial studies, seven studies were meta-analyzed. Sarcopenic participants had significantly higher levels of adiponectin Hedges' g with 95% confidence interval (CI): 1.20 (0.19-2.22), p = 0.02 than controls. Subgroup analysis, performed in Asian population and focused on identification of the condition based on AWGS criteria, reported higher adiponectin levels in sarcopenic population (2.1 (0.17-4.03), p = 0.03 and I2 = 98.98%. Meta-regression analysis revealed female gender to significantly influence the results as demonstrated by beta = 0.14 (95% CI (0.010-0.280), p = 0.040). CONCLUSIONS Our meta-analysis found evidence that sarcopenia is associated with higher adiponectin levels. However, caution is warranted on the interpretation of these findings, and future longitudinal research is required to disentangle and better understand the topic.
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Affiliation(s)
- Klara Komici
- Department of Medicine and Health Sciences “Vincenzo Tiberio”, University of Molise, Campobasso, Italy
- *Correspondence: Klara Komici,
| | - Antonio Dello Iacono
- School of Health and Life Sciences, University of the West of Scotland, Hamilton, United Kingdom
| | - Antonio De Luca
- Section of Human Anatomy, Department of Mental and Physical Health and Preventive Medicine, University of Campania “Luigi Vanvitelli”, Naples, Italy
| | - Fabio Perrotta
- Department of Medicine and Health Sciences “Vincenzo Tiberio”, University of Molise, Campobasso, Italy
| | - Leonardo Bencivenga
- Department of Translational Medical Sciences, University of Naples “Federico II”, Naples, Italy
- Department of Advanced Biomedical Sciences, University of Naples “Federico II”, Naples, Italy
| | - Giuseppe Rengo
- Department of Translational Medical Sciences, University of Naples “Federico II”, Naples, Italy
- Istituti Clinici Scientifici Maugeri SpA Società Benefit (ICS Maugeri SpA SB), Telese Terme, Italy
| | - Aldo Rocca
- Department of Medicine and Health Sciences “Vincenzo Tiberio”, University of Molise, Campobasso, Italy
| | - Germano Guerra
- Department of Medicine and Health Sciences “Vincenzo Tiberio”, University of Molise, Campobasso, Italy
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Priego T, Martín AI, González-Hedström D, Granado M, López-Calderón A. Role of hormones in sarcopenia. VITAMINS AND HORMONES 2021; 115:535-570. [PMID: 33706961 DOI: 10.1016/bs.vh.2020.12.021] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Aging involves numerous changes in body composition that include a decrease in skeletal muscle mass. The gradual reduction in muscle mass is associated with a simultaneous decrease in muscle strength, which leads to reduced mobility, fragility and loss of independence. This process called sarcopenia is secondary to several factors such as sedentary lifestyle, inadequate nutrition, chronic inflammatory state and neurological alterations. However, the endocrine changes associated with aging seem to be of special importance in the development of sarcopenia. On one hand, advancing age is associated with a decreased secretion of the main hormones that stimulate skeletal muscle mass and function (growth hormone, insulin-like growth factor 1 (IGFI), testosterone and estradiol). On the other hand, the alteration of the IGF-I signaling along with decreased insulin sensitivity also have an important impact on myogenesis. Other hormones that decline with aging such as the adrenal-derived dehydroepiandrosterone, thyroid hormones and vitamin D seem to also be involved in sarcopenia. Adipokines released by adipose tissue show important changes during aging and can affect muscle physiology and metabolism. In addition, catabolic hormones such as cortisol and angiotensin II can accelerate aged-induced muscle atrophy, as they are involved in muscle wasting and their levels increase with age. The role played by all of these hormones and the possible use of some of them as therapeutic tools for treating sarcopenia will be discussed.
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Affiliation(s)
- T Priego
- Departamento de Fisiología, Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
| | - A I Martín
- Departamento de Fisiología, Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
| | - D González-Hedström
- Departamento de Fisiología, Facultad de Medicina, Universidad Autónoma de Madrid, Madrid, Spain; Pharmactive Biotech Products S.L. Parque Científico de Madrid. Avenida del Doctor Severo Ochoa, 37 Local 4J, 28108 Alcobendas, Madrid, Spain
| | - M Granado
- Departamento de Fisiología, Facultad de Medicina, Universidad Autónoma de Madrid, Madrid, Spain; CIBER Fisiopatología de la Obesidad y Nutrición. Instituto de Salud Carlos III, Madrid, Spain
| | - A López-Calderón
- Departamento de Fisiología, Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain.
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Cicchella A, Carluccio M, Scoditti E, Kaltsatou A, Massaro M. Leptin and exercise: an update. GAZZETTA MEDICA ITALIANA ARCHIVIO PER LE SCIENZE MEDICHE 2020. [DOI: 10.23736/s0393-3660.19.04186-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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24
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Cooper DM, Girolami GL, Kepes B, Stehli A, Lucas CT, Haddad F, Zalidvar F, Dror N, Ahmad I, Soliman A, Radom-Aizik S. Body composition and neuromotor development in the year after NICU discharge in premature infants. Pediatr Res 2020; 88:459-465. [PMID: 31926484 PMCID: PMC7351612 DOI: 10.1038/s41390-020-0756-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 12/27/2019] [Accepted: 01/01/2020] [Indexed: 11/08/2022]
Abstract
BACKGROUND Hypothesis: neuromotor development correlates to body composition over the first year of life in prematurely born infants and can be influenced by enhancing motor activity. METHODS Forty-six female and 53 male infants [27 ± 1.8 (sd) weeks] randomized to comparison or exercise group (caregiver provided 15-20 min daily of developmentally appropriate motor activities) completed the year-long study. Body composition [lean body and fat mass (LBM, FM)], growth/inflammation predictive biomarkers, and Alberta Infant Motor Scale (AIMS) were assessed. RESULTS AIMS at 1 year correlated with LBM (r = 0.32, p < 0.001) in the whole cohort. However, there was no effect of the intervention. LBM increased by ~3685 g (p < 0.001)); insulin-like growth factor-1 (IGF-1) was correlated with LBM (r = 0.36, p = 0.002). IL-1RA (an inflammatory biomarker) decreased (-75%, p < 0.0125). LBM and bone mineral density were significantly lower and IGF-1 higher in the females at 1 year. CONCLUSIONS We found an association between neuromotor development and LBM suggesting that motor activity may influence LBM. Our particular intervention was ineffective. Whether activities provided largely by caregivers to enhance motor activity in prematurely born infants can affect the interrelated (1) balance of growth and inflammation mediators, (2) neuromotor development, (3) sexual dimorphism, and/or (4) body composition early in life remains unknown.
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Affiliation(s)
- Dan M Cooper
- Pediatric Exercise and Genomics Research Center, UC Irvine School of Medicine, Irvine, CA, USA.
| | - Gay L Girolami
- Department of Physical Therapy, University of Illinois at Chicago, Chicago, IL, USA
| | - Brenda Kepes
- Pediatric Exercise and Genomics Research Center, UC Irvine School of Medicine, Irvine, CA, USA
| | - Annamarie Stehli
- Pediatric Exercise and Genomics Research Center, UC Irvine School of Medicine, Irvine, CA, USA
| | - Candice Taylor Lucas
- Pediatric Exercise and Genomics Research Center, UC Irvine School of Medicine, Irvine, CA, USA
| | - Fadia Haddad
- Pediatric Exercise and Genomics Research Center, UC Irvine School of Medicine, Irvine, CA, USA
| | - Frank Zalidvar
- Pediatric Exercise and Genomics Research Center, UC Irvine School of Medicine, Irvine, CA, USA
| | - Nitzan Dror
- Pediatric Exercise and Genomics Research Center, UC Irvine School of Medicine, Irvine, CA, USA
| | - Irfan Ahmad
- Children's Hospital of Orange County, Orange, CA, USA
| | | | - Shlomit Radom-Aizik
- Pediatric Exercise and Genomics Research Center, UC Irvine School of Medicine, Irvine, CA, USA
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25
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Cenni V, Capanni C, Mattioli E, Schena E, Squarzoni S, Bacalini MG, Garagnani P, Salvioli S, Franceschi C, Lattanzi G. Lamin A involvement in ageing processes. Ageing Res Rev 2020; 62:101073. [PMID: 32446955 DOI: 10.1016/j.arr.2020.101073] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 03/05/2020] [Accepted: 04/11/2020] [Indexed: 12/29/2022]
Abstract
Lamin A, a main constituent of the nuclear lamina, is the major splicing product of the LMNA gene, which also encodes lamin C, lamin A delta 10 and lamin C2. Involvement of lamin A in the ageing process became clear after the discovery that a group of progeroid syndromes, currently referred to as progeroid laminopathies, are caused by mutations in LMNA gene. Progeroid laminopathies include Hutchinson-Gilford Progeria, Mandibuloacral Dysplasia, Atypical Progeria and atypical-Werner syndrome, disabling and life-threatening diseases with accelerated ageing, bone resorption, lipodystrophy, skin abnormalities and cardiovascular disorders. Defects in lamin A post-translational maturation occur in progeroid syndromes and accumulated prelamin A affects ageing-related processes, such as mTOR signaling, epigenetic modifications, stress response, inflammation, microRNA activation and mechanosignaling. In this review, we briefly describe the role of these pathways in physiological ageing and go in deep into lamin A-dependent mechanisms that accelerate the ageing process. Finally, we propose that lamin A acts as a sensor of cell intrinsic and environmental stress through transient prelamin A accumulation, which triggers stress response mechanisms. Exacerbation of lamin A sensor activity due to stably elevated prelamin A levels contributes to the onset of a permanent stress response condition, which triggers accelerated ageing.
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Affiliation(s)
- Vittoria Cenni
- CNR Institute of Molecular Genetics "Luigi Luca Cavalli-Sforza", Unit of Bologna, Bologna, Italy; IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Cristina Capanni
- CNR Institute of Molecular Genetics "Luigi Luca Cavalli-Sforza", Unit of Bologna, Bologna, Italy; IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Elisabetta Mattioli
- CNR Institute of Molecular Genetics "Luigi Luca Cavalli-Sforza", Unit of Bologna, Bologna, Italy; IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Elisa Schena
- CNR Institute of Molecular Genetics "Luigi Luca Cavalli-Sforza", Unit of Bologna, Bologna, Italy; IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Stefano Squarzoni
- CNR Institute of Molecular Genetics "Luigi Luca Cavalli-Sforza", Unit of Bologna, Bologna, Italy; IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | | | - Paolo Garagnani
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Bologna, Italy; Clinical Chemistry, Department of Laboratory Medicine, Karolinska Institutet at Huddinge, University Hospital, Stockholm, Sweden
| | - Stefano Salvioli
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Bologna, Italy; Interdepartmental Center Alma Mater Research Institute on Global Challenges and Climate Changes, University of Bologna, Bologna, Italy
| | - Claudio Franceschi
- Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia
| | - Giovanna Lattanzi
- CNR Institute of Molecular Genetics "Luigi Luca Cavalli-Sforza", Unit of Bologna, Bologna, Italy; IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy.
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Effects of Progressive Resistance Training on Cognition and IGF-1 Levels in Elder Women Who Live in Areas with High Air Pollution. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17176203. [PMID: 32859109 PMCID: PMC7503506 DOI: 10.3390/ijerph17176203] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/14/2020] [Accepted: 08/19/2020] [Indexed: 02/07/2023]
Abstract
The aim of this study was to determine the effects of a muscular strength programme on the levels of insulin-like growth factor-1 (IGF-1) and cognitive status in elder women with mild cognitive impairment who lived in areas of high air pollution. A total of 157 women participated in the study, distributed in four groups: Active/Clean (AC n = 38) and Active/Pollution (AP n = 37), who carried out a progressive resistance training programme for 24 months, and Sedentary/Clean (SC n = 40) and Sedentary/Pollution (SP n = 42). Maximum strength in the upper and lower limbs (1RM), cognition (Mini-Mental Scale Examination (MMSE)) and blood IGF-1 were evaluated. At the beginning of the intervention, there were no differences between the groups in the assessed variables. The active groups which carried out the resistance training programme (AC and AP), registered better results in IGF-1 than the sedentary groups. These differences were statistically significant in AC vs. SC (p < 0.01) and AP vs. SC (p < 0.05). Regarding MMSE, group AC registered the highest score increases (+8.2%) (significantly better than the other groups), while group SP worsened (−7%) significantly compared to the other three groups. In conclusion, resistance training had a positive effect on IGF-1, while sedentary behaviour and air pollution had a negative effect on cognitive status.
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27
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Janjuha R, Bunn D, Hayhoe R, Hooper L, Abdelhamid A, Mahmood S, Hayden-Case J, Appleyard W, Morris S, Welch A. Effects of Dietary or Supplementary Micronutrients on Sex Hormones and IGF-1 in Middle and Older Age: A Systematic Review and Meta-Analysis. Nutrients 2020; 12:E1457. [PMID: 32443563 PMCID: PMC7284480 DOI: 10.3390/nu12051457] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 04/29/2020] [Accepted: 05/06/2020] [Indexed: 12/11/2022] Open
Abstract
Observational research suggests that micronutrients may be protective for sarcopenia, a key health issue during ageing, potentially via effects on hormone synthesis and metabolism. We aimed to carry out a systematic review of RCTs investigating effects of increasing dietary or supplemental micronutrient intake on sex hormones and IGF-1 in individuals aged 45 years or older. We searched MEDLINE, EMBASE and Cochrane databases for RCTs reporting the effects of different micronutrients (vitamins A, C, D, or E; carotenoids; iron; copper; zinc; magnesium; selenium; and potassium) on sex hormones or IGF-1. Of the 26 RCTs identified, nine examined effects of vitamin D, nine of multi-nutrients, four of carotenoids, two of selenium, one of zinc, and one of vitamin E. For IGF-1 increasing vitamin D (MD: -0.53 nmol/L, 95% CI: -1.58, 0.52), multi-nutrients (MD: 0.60 nmol/L, 95% CI -1.12 to 2.33) and carotenoids (MD -1.32 nmol/L; 95% CI -2.76 to 0.11) had no significant effect on circulating concentrations. No significant effects on sex hormones of other micronutrients were found, but data were very limited. All trials had significant methodological limitations making effects of micronutrient supplementation on sex hormones unclear. Further high quality RCTs with physiological doses of micronutrients in people with low baseline intakes or circulating concentrations, using robust methodology, are required to assess effects of supplementation adequately.
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Affiliation(s)
- Ryan Janjuha
- Norwich Medical School, University of East Anglia, Norwich Research Park, Norwich, Norfolk NR4 7TJ, UK; (R.J.); (R.H.); (L.H.); (A.A.); (S.M.); (J.H.-C.); (W.A.); (S.M.)
| | - Diane Bunn
- School of Health Sciences, University of East Anglia, Norwich Research Park, Norwich, Norfolk NR4 7TJ, UK;
| | - Richard Hayhoe
- Norwich Medical School, University of East Anglia, Norwich Research Park, Norwich, Norfolk NR4 7TJ, UK; (R.J.); (R.H.); (L.H.); (A.A.); (S.M.); (J.H.-C.); (W.A.); (S.M.)
| | - Lee Hooper
- Norwich Medical School, University of East Anglia, Norwich Research Park, Norwich, Norfolk NR4 7TJ, UK; (R.J.); (R.H.); (L.H.); (A.A.); (S.M.); (J.H.-C.); (W.A.); (S.M.)
| | - Asmaa Abdelhamid
- Norwich Medical School, University of East Anglia, Norwich Research Park, Norwich, Norfolk NR4 7TJ, UK; (R.J.); (R.H.); (L.H.); (A.A.); (S.M.); (J.H.-C.); (W.A.); (S.M.)
| | - Shaan Mahmood
- Norwich Medical School, University of East Anglia, Norwich Research Park, Norwich, Norfolk NR4 7TJ, UK; (R.J.); (R.H.); (L.H.); (A.A.); (S.M.); (J.H.-C.); (W.A.); (S.M.)
| | - Joseph Hayden-Case
- Norwich Medical School, University of East Anglia, Norwich Research Park, Norwich, Norfolk NR4 7TJ, UK; (R.J.); (R.H.); (L.H.); (A.A.); (S.M.); (J.H.-C.); (W.A.); (S.M.)
| | - Will Appleyard
- Norwich Medical School, University of East Anglia, Norwich Research Park, Norwich, Norfolk NR4 7TJ, UK; (R.J.); (R.H.); (L.H.); (A.A.); (S.M.); (J.H.-C.); (W.A.); (S.M.)
| | - Sophie Morris
- Norwich Medical School, University of East Anglia, Norwich Research Park, Norwich, Norfolk NR4 7TJ, UK; (R.J.); (R.H.); (L.H.); (A.A.); (S.M.); (J.H.-C.); (W.A.); (S.M.)
| | - Ailsa Welch
- Norwich Medical School, University of East Anglia, Norwich Research Park, Norwich, Norfolk NR4 7TJ, UK; (R.J.); (R.H.); (L.H.); (A.A.); (S.M.); (J.H.-C.); (W.A.); (S.M.)
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Esain I, Rodriguez-Larrad A, Bidaurrazaga-Letona I, Gil SM. Exercise cessation in active older adults: Effects on inflammatory markers and adiponectin. Geriatr Gerontol Int 2020; 20:494-499. [PMID: 32181562 DOI: 10.1111/ggi.13907] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 02/10/2020] [Accepted: 02/28/2020] [Indexed: 01/22/2023]
Abstract
AIM To evaluate the effects of 3 months of exercise cessation in physically active older individuals on inflammatory biomarkers and adiponectin, and examine any association modifications in physical functioning. METHODS We evaluated the effects of exercise cessation in 49 physically active older adults on inflammatory biomarkers, adiponectin and physical functioning. Participants (38 women, 11 men) were aged >65 years old and had attended a 9-month supervised exercise program. After 3 months of exercise cessation, we measured anthropometry, physical activity, strength, balance, endurance exercise, cholesterol, triglycerides, C-reactive protein, glucose, glycosylated hemoglobin A1c, interleukin-6 and adiponectin levels. RESULTS Adiponectin was positively correlated with high-density lipoprotein and negatively correlated with triglyceride levels after exercise cessation. Higher adiponectin levels were correlated with worse dynamic balance, endurance exercise and lower limb strength (men only), which might be explained by the adiponectin resistance hypothesis. CONCLUSIONS Adiponectin therefore might be a promising biomarker of physical dysfunction in older adults, although further research is necessary to understand the mechanisms involved in its double-sided effects. Geriatr Gerontol Int 2020; 20: 494-499.
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Affiliation(s)
- Izaro Esain
- Department of Physiology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Ana Rodriguez-Larrad
- Department of Physiology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Iraia Bidaurrazaga-Letona
- Department of Physiology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Susana M Gil
- Department of Physiology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Leioa, Spain
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29
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Rava A, Pihlak A, Kums T, Purge P, Pääsuke M, Jürimäe J. Resistin concentration is inversely associated with objectively measured physical activity in healthy older women. Aging Clin Exp Res 2020; 32:475-481. [PMID: 31115876 DOI: 10.1007/s40520-019-01222-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 05/10/2019] [Indexed: 01/01/2023]
Abstract
Regular physical activity (PA) has been associated with decreased risk of many chronic diseases and increased longevity among older adults. In addition, ageing has been associated with higher levels of different inflammatory biomarkers while the association between inflammatory biomarkers and PA has remained controversial. The aim of the current investigation was to examine the association between blood biomarkers and objectively assessed PA among a sample of healthy older women with different levels of PA engagement. A total of 81 healthy women were recruited. Study participants were allocated to three groups according to accelerometer-obtained PA data. Body composition was assessed with dual-energy X-ray absorptiometry. Fasting blood samples were collected for the measurement of resistin, leptin, tumour necrosis factor alpha (TNFα) and C-reactive protein (CRP) concentrations. There were no significant differences between groups for resistin, leptin, TNFα and for CRP concentrations; however, higher moderate-to-vigorous physical activity (MVPA) groups tended to have lower level of blood biomarker concentrations. There was a significant negative relationship between resistin and steps per day. Inverse association between leptin and MVPA was significant after controlling for age. In multivariate stepwise linear regression analysis, steps per day were the strongest independent predictor for resistin, whereas for leptin, TNFα and CRP the strongest independent predictor was whole body fat mass. In conclusion, this study demonstrated negative association between resistin concentration and steps per day. Sedentary time and light PA had no relationship with resistin, leptin, TNFα or CRP concentrations.
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30
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Hou L, Liu Y, Li X, Huo C, Jia X, Yang J, Lei Y, Xu R, Sun C, Wang X. Changes and Risk Factors of Skeletal Muscle Mass and Strength in Patients with Type 2 Diabetes over 60 Years Old: A Cross-Sectional Study from China. J Diabetes Res 2020; 2020:9815485. [PMID: 33381601 PMCID: PMC7759389 DOI: 10.1155/2020/9815485] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 08/10/2020] [Accepted: 09/03/2020] [Indexed: 12/25/2022] Open
Abstract
OBJECTIVE The accelerate loss of skeletal muscle mass, strength, and function, named sarcopenia, is a progressive and generalised skeletal muscle disorder, and it is always associated with increased outcomes including falls, frailty, and disability. Diabetes mellitus is associated with significant muscle and physical complications. We aimed at clarifying the changes and risk factors of skeletal muscle mass and strength in elderly with type 2 diabetes. METHODS The study consisted of patients with type 2 diabetes (n = 120) and an older general population (n = 126). The skeletal muscle mass and muscle strength, as well as the serum levels of chronic inflammation, oxidative stress, homocysteine, and insulin-like factor-1 were assessed, and the correlation and regression analysis were conducted to evaluate outcomes. RESULTS T2DM patients exhibited lower muscle strength compared with the non-T2DM subjects (P < 0.01). Among T2DM patients, serum IGF-1 levels were positively correlated with muscle strength (r = 0.255, P < 0.01) and muscle mass (r = 0.209, P < 0.05), levels of 8-OHdG were inversely correlated with muscle strength (r = -0.252, P < 0.01), and there was a negative association between HCY and muscle mass (r = -0.185, P < 0.05). Muscle mass and strength of patients with higher education level were significantly higher than those with lower education level (P < 0.05), in male patients, muscle mass and muscle strength were significantly lower in smokers (P < 0.01), and muscle mass was lower in chronic drinkers (P < 0.05). CONCLUSIONS These findings suggest that diabetic patients may be more susceptible to sarcopenia at an older age. And it also provides evidences that among elderly with diabetes mellitus, oxidative damage and HCY as well as IGF-1 are important predictors of age-dependent sarcopenia.
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Affiliation(s)
- Liming Hou
- Department of Geriatrics, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi Province 710032, China
- Clinical Research Center for Geriatric Diseases of Shaanxi Province, Xi'an, Shaanxi Province 710032, China
| | - Yan Liu
- Department of Geriatrics, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi Province 710032, China
- Clinical Research Center for Geriatric Diseases of Shaanxi Province, Xi'an, Shaanxi Province 710032, China
| | - Xing Li
- Department of Geriatrics, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi Province 710032, China
| | - Cong Huo
- Department of Geriatrics, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi Province 710032, China
- Clinical Research Center for Geriatric Diseases of Shaanxi Province, Xi'an, Shaanxi Province 710032, China
| | - Xin Jia
- Department of Geriatrics, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi Province 710032, China
- Clinical Research Center for Geriatric Diseases of Shaanxi Province, Xi'an, Shaanxi Province 710032, China
| | - Jie Yang
- Department of Geriatrics, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi Province 710032, China
- Clinical Research Center for Geriatric Diseases of Shaanxi Province, Xi'an, Shaanxi Province 710032, China
| | - Yunzhen Lei
- Department of Geriatrics, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi Province 710032, China
- Clinical Research Center for Geriatric Diseases of Shaanxi Province, Xi'an, Shaanxi Province 710032, China
| | - Rong Xu
- Department of Geriatrics, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi Province 710032, China
- Clinical Research Center for Geriatric Diseases of Shaanxi Province, Xi'an, Shaanxi Province 710032, China
| | - Chao Sun
- Department of Geriatrics, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi Province 710032, China
- Clinical Research Center for Geriatric Diseases of Shaanxi Province, Xi'an, Shaanxi Province 710032, China
| | - Xiaoming Wang
- Department of Geriatrics, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi Province 710032, China
- Clinical Research Center for Geriatric Diseases of Shaanxi Province, Xi'an, Shaanxi Province 710032, China
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31
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Lee YL, Lee BH, Lee SY. Handgrip Strength in the Korean Population: Normative Data and Cutoff Values. Ann Geriatr Med Res 2019; 23:183-189. [PMID: 32743310 PMCID: PMC7370763 DOI: 10.4235/agmr.19.0042] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Revised: 12/10/2019] [Accepted: 12/12/2019] [Indexed: 12/14/2022] Open
Abstract
Background We aimed to report the age- and sex-specific normative data of Korean handgrip strength (HGS) and to establish the cutoffs values of low HGS in Korean populations. Methods We analyzed the HGS data of 23,716 Koreans (10,793 men and 12,923 women) from the Korea National Health and Nutrition Examination Survey from 2014 to 2017. The means with standard deviations (SDs) of HGS were calculated for each 5-year interval starting from 10 years of age. To determine the relationship between HGS and body mass index (BMI), correlation analysis was also performed. The sex-specific cutoff values for low HGS were presented by deriving the –2 SD values of healthy young adults. Results The mean HGS was 39.5±9.3 kg in men and 24.4±5.3 kg in women. The mean HGS increased from 10 to 39 years and peaked at 35–39 years in both men (46.0±7.2 kg) and women (27.2±4.6 kg). Men showed a higher correlation between HGS and BMI (r=0.378) than did women (r=0.134). The cutoff values for low HGS were 29.6 kg for men and 16.8 kg for women for –2 SD below the reference for healthy young adults. Conclusion In Koreans, the mean HGS peaked at 35–39 years in both men and women, and the aging curve of HGS was steeper in men than in women. The cutoff values for low HGS were 29.6 kg and 16.8 kg for men and women, respectively.
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Affiliation(s)
- Yae Lim Lee
- Department of Rehabilitation Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Ban Hyung Lee
- Department of Rehabilitation Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Sang Yoon Lee
- Department of Rehabilitation Medicine, SMG-SNU Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
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32
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Coelho-Junior HJ, Picca A, Calvani R, Uchida MC, Marzetti E. If my muscle could talk: Myokines as a biomarker of frailty. Exp Gerontol 2019; 127:110715. [PMID: 31473199 DOI: 10.1016/j.exger.2019.110715] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 08/12/2019] [Accepted: 08/26/2019] [Indexed: 01/03/2023]
Abstract
Frailty is a potentially reversible state of increased vulnerability to negative health-related outcomes that occurs as a result of multisystem biological impairment and environmental aspects. Given the relevance of this condition in both clinics and research, biomarkers of frailty have been actively sought after. Although several candidate biomarkers of frailty have been identified, none of them has yet been incorporated in the assessment or monitoring of the condition. Over the last years, increasing research interest has been focused on myokines, a set of cytokines, small proteins and proteoglycan peptides that are synthetized, expressed and released by skeletal myocytes in response to muscular contractions. Myokines may act in autocrine, paracrine, and endocrine manner and regulate several processes associated with physical frailty, including muscle wasting, dynapenia, and slowness. This review discusses the rationale to support the use of myokines as biomarkers of frailty in older adults.
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Affiliation(s)
- Hélio J Coelho-Junior
- Università Cattolica del Sacro Cuore, Rome, Italy; Applied Kinesiology Laboratory-LCA, School of Physical Education, University of Campinas, Campinas, SP, Brazil.
| | - Anna Picca
- Università Cattolica del Sacro Cuore, Rome, Italy; Fondazione Policlinico Universitario "Agostino Gemelli" IRCCS, Rome, Italy
| | - Riccardo Calvani
- Università Cattolica del Sacro Cuore, Rome, Italy; Fondazione Policlinico Universitario "Agostino Gemelli" IRCCS, Rome, Italy
| | - Marco C Uchida
- Applied Kinesiology Laboratory-LCA, School of Physical Education, University of Campinas, Campinas, SP, Brazil
| | - Emanuele Marzetti
- Fondazione Policlinico Universitario "Agostino Gemelli" IRCCS, Rome, Italy
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33
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Cernea A, Fernández-Martínez JL, de Andrés-Galiana EJ, Fernández-Muñiz Z, Bermejo-Millo JC, González-Blanco L, Solano JJ, Abizanda P, Coto-Montes A, Caballero B. Prognostic networks for unraveling the biological mechanisms of Sarcopenia. Mech Ageing Dev 2019; 182:111129. [PMID: 31445068 DOI: 10.1016/j.mad.2019.111129] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 07/26/2019] [Accepted: 08/18/2019] [Indexed: 01/31/2023]
Abstract
Sarcopenia is an age-related multifactorial process that involved several biological mechanisms, whose specific contribution and interplay is still unknown. The present study proposes prognostic networks based on machine learning approaches to unravel the interplay among those biological mechanisms mainly involved in the development of Sarcopenia. After analyzing 114 biological and clinical variables in adults older than 70 years, and using all the biological prognostic networks detected by machine learning with accuracy higher than 82%, we designed a consensus classifier based on majority vote that improve the predictive accuracy of Sarcopenia up to 91%. Additionally, we applied logistic regression analysis to propose the interplay among the most discriminative biological variables of Sarcopenia: anthropometry, body composition, functional performance of lower limbs, systemic oxidative stress, presence of depression and medication for the digestive system based on proton-pump inhibitors. Our data also demonstrate that besides a loss of muscle mass, impairments on functional performance of lower limbs are more relevant for develop Sarcopenia than those affecting the muscle strength.
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Affiliation(s)
- Ana Cernea
- Group of Inverse Problems, Optimization and Machine Learning, Department of Mathematics, University of Oviedo, C/ Federico García Lorca, 8, 33007, Oviedo, Spain
| | - Juan Luis Fernández-Martínez
- Group of Inverse Problems, Optimization and Machine Learning, Department of Mathematics, University of Oviedo, C/ Federico García Lorca, 8, 33007, Oviedo, Spain
| | - Enrique Juan de Andrés-Galiana
- Group of Inverse Problems, Optimization and Machine Learning, Department of Mathematics, University of Oviedo, C/ Federico García Lorca, 8, 33007, Oviedo, Spain
| | - Zulima Fernández-Muñiz
- Group of Inverse Problems, Optimization and Machine Learning, Department of Mathematics, University of Oviedo, C/ Federico García Lorca, 8, 33007, Oviedo, Spain
| | - Juan Carlos Bermejo-Millo
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA) and Department of Morphology and Cellular Biology, Faculty of Medicine, University of Oviedo, C/ Julián Claveria 6, 33006, Oviedo, Spain
| | - Laura González-Blanco
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA) and Department of Morphology and Cellular Biology, Faculty of Medicine, University of Oviedo, C/ Julián Claveria 6, 33006, Oviedo, Spain
| | - Juan José Solano
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA) and Geriatric Service, Monte Naranco Hospital, Av. Dolores Fernández Vega 107, 33012, Oviedo, Asturias, Spain
| | - Pedro Abizanda
- Geriatric Service, Complejo Hospitalario Universitario de Albacete, C/Hnos. Falcó, 37, 02008, Albacete, Spain; CIBERFES (CB16/10/00408), Instituto de Salud Carlos III, Madrid, Spain
| | - Ana Coto-Montes
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA) and Department of Morphology and Cellular Biology, Faculty of Medicine, University of Oviedo, C/ Julián Claveria 6, 33006, Oviedo, Spain
| | - Beatriz Caballero
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA) and Department of Morphology and Cellular Biology, Faculty of Medicine, University of Oviedo, C/ Julián Claveria 6, 33006, Oviedo, Spain.
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34
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Li CW, Yu K, Shyh-Chang N, Li GX, Jiang LJ, Yu SL, Xu LY, Liu RJ, Guo ZJ, Xie HY, Li RR, Ying J, Li K, Li DJ. Circulating factors associated with sarcopenia during ageing and after intensive lifestyle intervention. J Cachexia Sarcopenia Muscle 2019; 10:586-600. [PMID: 30969486 PMCID: PMC6596393 DOI: 10.1002/jcsm.12417] [Citation(s) in RCA: 139] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 01/27/2019] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Ageing, chronic diseases, prolonged inactivity, and inadequate nutrition pose a severe threat to skeletal muscle health and function. To date, experimental evidence suggests that ageing-related subclinical inflammation could be an important causative factor in sarcopenia. Although inflammatory signalling has been implicated in the pathogenesis of experimental animal models of sarcopenia, few studies have surveyed the clinical association between circulating factors and muscle mass in patients before and after lifestyle interventions. In this study, we evaluated whether proinflammatory cytokines are associated with the onset of sarcopenia, which circulating factors are associated with the severity of sarcopenia, and how these factors change after lifestyle interventions in sarcopenic elderly persons. METHODS A total of 56 elderly subjects (age ≥ 60 years) with sarcopenia and 56 elderly non-sarcopenic subjects, who met entry criteria and had given informed consent, were selected from the Peking Union Medical College Hospital multicentre prospective longitudinal sarcopenia study for testing relevant circulating factors. Thirty-two elderly subjects from the sarcopenic cohort completed a 12 week intensive lifestyle intervention programme with whey supplements (30 g/day) and a personalized resistance training regimen. The levels of proinflammatory cytokines and metabolic hormones, pre-intensive and post-intensive lifestyle interventions, were measured. RESULTS The sarcopenic group was significantly older (72.05 ± 6.54 years; P < 0.001), more likely to be inactive and female (57.1% of all sarcopenic patients), and had a higher prevalence of type 2 diabetes (16% higher risk). Compared with non-sarcopenic subjects, serum interleukin (IL)-6, IL-18, tumour necrosis factor-α (TNF-α), TNF-like weak inducer of apoptosis (TWEAK), and leptin were significantly higher, while insulin growth factor 1, insulin, and adiponectin were significantly lower in sarcopenic patients (all P < 0.05). Logistic regression analyses revealed that high levels of TNF-α (>11.15 pg/mL) and TWEAK (>1276.48 pg/mL) were associated with a 7.6-fold and 14.3-fold increased risk of sarcopenia, respectively. After adjustment for confounding variables, high levels of TWEAK were still associated with a 13.4-fold increased risk of sarcopenia. Intensive lifestyle interventions led to significant improvements in sarcopenic patients' muscle mass and serum profiles of TWEAK, TNF-α, IL-18, insulin, and adiponectin (all P < 0.05). CONCLUSIONS High levels of the inflammatory cytokines TWEAK and TNF-α are associated with an increased risk of sarcopenia, while the metabolic hormones insulin growth factor 1, insulin, and adiponectin are associated with a decreased risk of sarcopenia in our Chinese patient cohort. Intensive lifestyle interventions could significantly improve muscle mass, reduce inflammation, and restore metabolic hormone levels in sarcopenic patients. This trial was registered at clinicaltrials.gov as NCT02873676.
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Affiliation(s)
- Chun-Wei Li
- Department of Clinical Nutrition and Department of Health Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Dongcheng District, Beijing, China.,Department of General Surgery and Clinical Nutrition, TianJin Union Medical Center, Hongqiao District, Tianjin, China
| | - Kang Yu
- Department of Clinical Nutrition and Department of Health Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Dongcheng District, Beijing, China
| | - Ng Shyh-Chang
- Institute of Stem cell and Regeneration, Chinese Academy of Sciences, Chaoyang District, Beijing, China.,State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Guo-Xun Li
- Department of General Surgery and Clinical Nutrition, TianJin Union Medical Center, Hongqiao District, Tianjin, China
| | - Ling-Juan Jiang
- Department of Central Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Dongcheng District, Beijing, China
| | - Song-Lin Yu
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Dongcheng District, Beijing, China
| | - Long-Yu Xu
- Department of Sport Physiatry, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Dongcheng District, Beijing, China
| | - Rong-Ji Liu
- Department of Pharmacy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Dongcheng District, Beijing, China
| | - Zi-Jian Guo
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Dongcheng District, Beijing, China
| | - Hai-Yan Xie
- Department of Health Care, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Dongcheng District, Beijing, China
| | - Rong-Rong Li
- Department of Clinical Nutrition and Department of Health Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Dongcheng District, Beijing, China
| | - Jie Ying
- Department of Clinical Nutrition and Department of Health Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Dongcheng District, Beijing, China
| | - Kang Li
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Dongcheng District, Beijing, China
| | - Dong-Jing Li
- Department of Health Care, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Dongcheng District, Beijing, China
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35
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Pasdar Y, Darbandi M, Mirtaher E, Rezaeian S, Najafi F, Hamzeh B. Associations between Muscle Strength with Different Measures of Obesity and Lipid Profiles in Men and Women: Results from RaNCD Cohort Study. Clin Nutr Res 2019; 8:148-158. [PMID: 31089468 PMCID: PMC6494752 DOI: 10.7762/cnr.2019.8.2.148] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 04/19/2019] [Accepted: 04/22/2019] [Indexed: 12/16/2022] Open
Abstract
We aimed to examine associations between muscle strength and obesity and serum lipid profile in Ravansar Non-Communicable Disease (RaNCD) cohort study. This study was conducted on 6,455 subjects aged 35–65 years old from baseline data of RaNCD in Iran. The associations between grip strength and adiposity measurements were explored using linear regression with adjustment for age, height, smoking status, alcohol intake, social class, and prevalent disease. The mean of body mass index (BMI) and muscle strength was 27.2 ± 4.6 kg/m2 and 33.3 ± 11.5, respectively. Muscular strength increased with increasing BMI and waist circumference (WC) in both sexes. Multivariate regression analysis revealed a 3.24 (95% confidence interval [CI], 2.29, 4.19) kg difference between BMI in top and bottom in men, and 1.71 (95% CI, 0.98, 2.34) kg/m2 in women. After multivariable adjustment, a difference of 2.04 (95% CI, 1.12, 2.97) kg was observed between the top and bottom WC quartiles in men and 1.25 (95% CI, 0.51, 1.98) kg in women. In men, with increase of low-density lipoprotein and cholesterol, the mean muscle strength was significantly increased. Muscle strength may be associated with body composition and lipid profiles. Muscle strength can be an appropriate indicator for predicting some of the problems caused by body composition disorders, which requires further longitudinal studies.
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Affiliation(s)
- Yahya Pasdar
- Department of Nutrition, Research Center for Environmental Determinants of Health (RCEDH), Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mitra Darbandi
- Department of Epidemiology, Research Center for Environmental Determinants of Health (RCEDH), Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Elham Mirtaher
- Department of Nutrition, School of Nutritional Science and Food Technology, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Shahab Rezaeian
- Department of Epidemiology, Research Center for Environmental Determinants of Health (RCEDH), Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Farid Najafi
- Department of Epidemiology, Research Center for Environmental Determinants of Health (RCEDH), Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Behrooz Hamzeh
- Department of Health Promotion, Research Center for Environmental Determinants of Health (RCEDH), Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
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36
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Lu Y, Karagounis LG, Ng TP, Carre C, Narang V, Wong G, Tan CTY, Zin Nyunt MS, Gao Q, Abel B, Poidinger M, Fulop T, Bosco N, Larbi A. Systemic and Metabolic Signature of Sarcopenia in Community-Dwelling Older Adults. J Gerontol A Biol Sci Med Sci 2019; 75:309-317. [DOI: 10.1093/gerona/glz001] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Indexed: 12/11/2022] Open
Affiliation(s)
- Yanxia Lu
- Biology of Aging Laboratory, Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Biopolis, Singapore
| | - Leonidas G Karagounis
- Experimental Myology and Integrative Physiology Cluster, Plymouth Marjon University, UK
- Nestle Health Science, Vevey, Switzerland
| | - Tze Pin Ng
- Gerontology Research Programme, Department of Psychological Medicine, National University Health System, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Christophe Carre
- Biostat, Bioinformatics & Omics, Sanofi Pasteur, Marcy l’Etoile, France
| | | | - Glenn Wong
- Biology of Aging Laboratory, Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Biopolis, Singapore
| | - Crystal Tze Ying Tan
- Biology of Aging Laboratory, Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Biopolis, Singapore
| | - Ma Shwe Zin Nyunt
- Gerontology Research Programme, Department of Psychological Medicine, National University Health System, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Qi Gao
- Gerontology Research Programme, Department of Psychological Medicine, National University Health System, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Brian Abel
- Immunomonitoring Platform, Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Biopolis, Singapore
| | | | - Tamas Fulop
- Geriatrics Division, Department of Medicine, Research Center on Ageing, University of Sherbrooke, Quebec, Canada
| | | | - Anis Larbi
- Biology of Aging Laboratory, Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Biopolis, Singapore
- Geriatrics Division, Department of Medicine, Research Center on Ageing, University of Sherbrooke, Quebec, Canada
- Department of Biology, Faculty of Sciences, University Tunis El Manar, Tunisia
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37
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Capri M, Morsiani C, Santoro A, Moriggi M, Conte M, Martucci M, Bellavista E, Fabbri C, Giampieri E, Albracht K, Flück M, Ruoss S, Brocca L, Canepari M, Longa E, Di Giulio I, Bottinelli R, Cerretelli P, Salvioli S, Gelfi C, Franceschi C, Narici M, Rittweger J. Recovery from 6-month spaceflight at the International Space Station: muscle-related stress into a proinflammatory setting. FASEB J 2019; 33:5168-5180. [PMID: 30620616 PMCID: PMC6436655 DOI: 10.1096/fj.201801625r] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The Sarcolab pilot study of 2 crewmembers, investigated before and after a 6-mo International Space Station mission, has demonstrated the substantial muscle wasting and weakness, along with disruption of muscle's oxidative metabolism. The present work aimed at evaluating the pro/anti-inflammatory status in the same 2 crewmembers (A, B). Blood circulating (c-)microRNAs (miRs), c-proteasome, c-mitochondrial DNA, and cytokines were assessed by real-time quantitative PCR or ELISA tests. Time series analysis was performed ( i.e., before flight and after landing) at 1 and 15 d of recovery (R+1 and R+15, respectively). C-biomarkers were compared with an age-matched control population and with 2-dimensional proteomic analysis of the 2 crewmembers' muscle biopsies. Striking differences were observed between the 2 crewmembers at R+1, in terms of inflamma-miRs (c-miRs-21-5p, -126-3p, and -146a-5p), muscle specific (myo)-miR-206, c-proteasome, and IL-6/leptin, thus making the 2 astronauts dissimilar to each other. Final recovery levels of c-proteasome, c-inflamma-miRs, and c-myo-miR-206 were not reverted to the baseline values in crewmember A. In both crewmembers, myo-miR-206 changed significantly after recovery. Muscle biopsy of astronaut A showed an impressive 80% increase of α-1-antitrypsin, a target of miR-126-3p. These results point to a strong stress response induced by spaceflight involving muscle tissue and the proinflammatory setting, where inflamma-miRs and myo-miR-206 mediate the systemic recovery phase after landing.-Capri, M., Morsiani, C., Santoro, A., Moriggi, M., Conte, M., Martucci, M., Bellavista, E., Fabbri, C., Giampieri, E., Albracht, K., Flück, M., Ruoss, S., Brocca, L., Canepari, M., Longa, E., Di Giulio, I., Bottinelli, R., Cerretelli, P., Salvioli, S., Gelfi, C., Franceschi, C., Narici, M., Rittweger, J. Recovery from 6-month spaceflight at the International Space Station: muscle-related stress into a proinflammatory setting.
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Affiliation(s)
- Miriam Capri
- Department of Experimental, Diagnostic, and Specialty Medicine, University of Bologna, Bologna, Italy.,Galvani Interdepartmental Center, University of Bologna, Bologna, Italy
| | - Cristina Morsiani
- Department of Experimental, Diagnostic, and Specialty Medicine, University of Bologna, Bologna, Italy.,Galvani Interdepartmental Center, University of Bologna, Bologna, Italy
| | - Aurelia Santoro
- Department of Experimental, Diagnostic, and Specialty Medicine, University of Bologna, Bologna, Italy.,Galvani Interdepartmental Center, University of Bologna, Bologna, Italy
| | - Manuela Moriggi
- National Research Council-Institute of Molecular Bioimaging and Physiology (CNR-IBFM), Segrate, Milan, Italy.,Italian National Olympic Committee (CONI), Rome, Italy
| | - Maria Conte
- Department of Experimental, Diagnostic, and Specialty Medicine, University of Bologna, Bologna, Italy.,Galvani Interdepartmental Center, University of Bologna, Bologna, Italy
| | - Morena Martucci
- Department of Experimental, Diagnostic, and Specialty Medicine, University of Bologna, Bologna, Italy.,Galvani Interdepartmental Center, University of Bologna, Bologna, Italy
| | - Elena Bellavista
- Department of Experimental, Diagnostic, and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Cristina Fabbri
- Department of Experimental, Diagnostic, and Specialty Medicine, University of Bologna, Bologna, Italy.,Galvani Interdepartmental Center, University of Bologna, Bologna, Italy
| | - Enrico Giampieri
- Galvani Interdepartmental Center, University of Bologna, Bologna, Italy.,Department of Physics and Astronomy, University of Bologna, Bologna, Italy
| | - Kirsten Albracht
- Faculty of Medical Engineering and Technomathematics, FH Aachen University of Applied Sciences, Aachen, Germany.,Institute of Biomechanics and Orthopaedics, German Sport University, Cologne, Germany
| | - Martin Flück
- Department of Orthopaedics, University of Zürich, Zürich, Switzerland
| | - Severin Ruoss
- Department of Orthopaedics, University of Zürich, Zürich, Switzerland
| | - Lorenza Brocca
- Department of Molecular Medicine, University of Pavia, Pavia, Italy
| | - Monica Canepari
- Department of Molecular Medicine, University of Pavia, Pavia, Italy
| | - Emanuela Longa
- Sport Medicine Center, University of Pavia, Pavia, Italy
| | - Irene Di Giulio
- Centre of Human and Applied Physiological Sciences, King's College London, London, United Kingdom
| | - Roberto Bottinelli
- Department of Molecular Medicine, University of Pavia, Pavia, Italy.,Fondazione Salvatore Maugeri, Institute of Hospitalization and Scientific Care (IRCCS), Scientific Institute of Pavia, Pavia, Italy
| | - Paolo Cerretelli
- National Research Council-Institute of Molecular Bioimaging and Physiology (CNR-IBFM), Segrate, Milan, Italy.,Italian National Olympic Committee (CONI), Rome, Italy
| | - Stefano Salvioli
- Department of Experimental, Diagnostic, and Specialty Medicine, University of Bologna, Bologna, Italy.,Galvani Interdepartmental Center, University of Bologna, Bologna, Italy
| | - Cecilia Gelfi
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy.,IRCCS, Istituto Ortopedico Galeazzi, Milan, Italy
| | - Claudio Franceschi
- Department of Applied Mathematics, Institute of Information Technology, Mathematics, and Mechanics (ITMM), Lobachevsky State University of Nizhny Novgorod-National Research University (UNN), Nizhny Novogoro, Russia
| | - Marco Narici
- Department of Biomedical Sciences, University of Padova, Padua, Italy
| | - Jörn Rittweger
- Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany; and.,Department of Pediatrics and Adolescent Medicine, University of Cologne, Cologne, Germany
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38
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Conte M, Martucci M, Sandri M, Franceschi C, Salvioli S. The Dual Role of the Pervasive "Fattish" Tissue Remodeling With Age. Front Endocrinol (Lausanne) 2019; 10:114. [PMID: 30863366 PMCID: PMC6400104 DOI: 10.3389/fendo.2019.00114] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Accepted: 02/07/2019] [Indexed: 12/12/2022] Open
Abstract
Human aging is characterized by dramatic changes in body mass composition that include a general increase of the total fat mass. Within the fat mass, a change in the proportions of adipose tissues also occurs with aging, affecting body metabolism, and playing a central role in many chronic diseases, including insulin resistance, obesity, cardiovascular diseases, and type II diabetes. In mammals, fat accumulates as white (WAT) and brown (BAT) adipose tissue, which differ both in morphology and function. While WAT is involved in lipid storage and immuno-endocrine responses, BAT is aimed at generating heat. With advancing age BAT declines, while WAT increases reaching the maximum peak by early old age and changes its distribution toward a higher proportion of visceral WAT. However, lipids tend to accumulate also within lipid droplets (LDs) in non-adipose tissues, including muscle, liver, and heart. The excess of such ectopic lipid deposition and the alteration of LD homeostasis contribute to the pathogenesis of the above-mentioned age-related diseases. It is not clear why age-associated tissue remodeling seems to lean toward lipid deposition as a "default program." However, it can be noted that such remodeling is not inevitably detrimental. In fact, such a programmed redistribution of fat throughout life could be considered physiological and even protective, in particular at extreme old age. In this regard, it has to be considered that an excessive decrease of subcutaneous peripheral fat is associated with a pro-inflammatory status, and a decrease of LD is associated with lipotoxicity leading to an increased risk of insulin resistance, type II diabetes and cardiovascular diseases. At variance, a balanced rate of fat content and distribution has beneficial effects for health and metabolic homeostasis, positively affecting longevity. In this review, we will summarize the present knowledge on the mechanisms of the age-related changes in lipid distribution and we will discuss how fat mass negatively or positively impacts on human health and longevity.
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Affiliation(s)
- Maria Conte
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Bologna, Italy
- Interdepartmental Centre “L. Galvani” (CIG), University of Bologna, Bologna, Italy
- *Correspondence: Maria Conte
| | - Morena Martucci
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Bologna, Italy
| | - Marco Sandri
- Venetian Institute of Molecular Medicine, Padova, Italy
- Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Claudio Franceschi
- IRCCS Istituto delle Scienze Neurologiche di Bologna, Bologna, Italy
- Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia
| | - Stefano Salvioli
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Bologna, Italy
- Interdepartmental Centre “L. Galvani” (CIG), University of Bologna, Bologna, Italy
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Kemp PR, Griffiths M, Polkey MI. Muscle wasting in the presence of disease, why is it so variable? Biol Rev Camb Philos Soc 2018; 94:1038-1055. [PMID: 30588725 DOI: 10.1111/brv.12489] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 11/22/2018] [Accepted: 11/27/2018] [Indexed: 12/16/2022]
Abstract
Skeletal muscle wasting is a common clinical feature of many chronic diseases and also occurs in response to single acute events. The accompanying loss of strength can lead to significant disability, increased care needs and have profound negative effects on quality of life. As muscle is the most abundant source of amino acids in the body, it appears to function as a buffer for fuel and substrates that can be used to repair damage elsewhere and to feed the immune system. In essence, the fundamentals of muscle wasting are simple: less muscle is made than is broken down. However, although well-described mechanisms modulate muscle protein turnover, significant individual differences in the amount of muscle lost in the presence of a given severity of disease complicate the understanding of underlying mechanisms and suggest that individuals have different sensitivities to signals for muscle loss. Furthermore, the rate at which muscle protein is turned over under normal conditions means that clinically significant muscle loss can occur with changes in the rate of protein synthesis and/or breakdown that are too small to be measurable. Consequently, the changes in expression of factors regulating muscle turnover required to cause a decline in muscle mass are small and, except in cases of rapid wasting, there is no consistent pattern of change in the expression of factors that regulate muscle mass. MicroRNAs are fine tuners of cell phenotype and are therefore ideally suited to cause the subtle changes in proteome required to tilt the balance between synthesis and degradation in a way that causes clinically significant wasting. Herein we present a model in which muscle loss as a consequence of disease in non-muscle tissue is modulated by a set of microRNAs, the muscle expression of which is associated with severity of disease in the non-muscle tissue. These microRNAs alter fundamental biological processes including the synthesis of ribosomes and mitochondria leading to reduced protein synthesis and increased protein breakdown, thereby freeing amino acids from the muscle. We argue that the variability in muscle loss observed in the human population arises from at least two sources. The first is from pre-existing or disease-induced variation in the expression of microRNAs controlling the sensitivity of muscle to the atrophic signal and the second is from the expression of microRNAs from imprinted loci (i.e. only expressed from the maternally or paternally inherited allele) and may control the rate of myonuclear recruitment. In the absence of disease, these factors do not correlate with muscle mass, since there is no challenge to the established balance. However, in the presence of such a challenge, these microRNAs determine the rate of decline for a given disease severity. Together these mechanisms provide novel insight into the loss of muscle mass and its variation in the human population. The involvement of imprinted loci also suggests that genes that regulate early development also contribute to the ability of individuals to resist muscle loss in response to disease.
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Affiliation(s)
- Paul R Kemp
- National Heart & Lung Institute, Imperial College London, South Kensington Campus, London, SW7 2AZ, U.K
| | - Mark Griffiths
- National Heart & Lung Institute, Imperial College London, South Kensington Campus, London, SW7 2AZ, U.K
| | - Michael I Polkey
- National Institute for Health Research Respiratory Biomedical Research Unit, Royal Brompton and Harefield NHS Foundation Trust and Imperial College London, Sydney Street, London SW3 6NP, U.K
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Obese subcutaneous adipose tissue impairs human myogenesis, particularly in old skeletal muscle, via resistin-mediated activation of NFκB. Sci Rep 2018; 8:15360. [PMID: 30337633 PMCID: PMC6193975 DOI: 10.1038/s41598-018-33840-x] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 10/05/2018] [Indexed: 02/02/2023] Open
Abstract
Adiposity and adipokines are implicated in the loss of skeletal muscle mass with age and in several chronic disease states. The aim of this study was to determine the effects of human obese and lean subcutaneous adipose tissue secretome on myogenesis and metabolism in skeletal muscle cells derived from both young (18-30 yr) and elderly (>65 yr) individuals. Obese subcutaneous adipose tissue secretome impaired the myogenesis of old myoblasts but not young myoblasts. Resistin was prolifically secreted by obese subcutaneous adipose tissue and impaired myotube thickness and nuclear fusion by activation of the classical NFκB pathway. Depletion of resistin from obese adipose tissue secretome restored myogenesis. Inhibition of the classical NFκB pathway protected myoblasts from the detrimental effect of resistin on myogenesis. Resistin also promoted intramyocellular lipid accumulation in myotubes and altered myotube metabolism by enhancing fatty acid oxidation and increasing myotube respiration and ATP production. In conclusion, resistin derived from human obese subcutaneous adipose tissue impairs myogenesis of human skeletal muscle, particularly older muscle, and alters muscle metabolism in developing myotubes. These findings may have important implications for the maintenance of muscle mass in older people with chronic inflammatory conditions, or older people who are obese or overweight.
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Li FH, Sun L, Zhu M, Li T, Gao HE, Wu DS, Zhu L, Duan R, Liu TCY. Beneficial alterations in body composition, physical performance, oxidative stress, inflammatory markers, and adipocytokines induced by long-term high-intensity interval training in an aged rat model. Exp Gerontol 2018; 113:150-162. [PMID: 30308288 DOI: 10.1016/j.exger.2018.10.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 10/05/2018] [Accepted: 10/05/2018] [Indexed: 10/28/2022]
Abstract
Sarcopenia is associated with loss of muscle mass and function as well as oxidative stress, chronic low-grade inflammatory status, and adipocytokine dysfunction. It has been reported that sarcopenia can be attenuated by exercise training. The purpose of this study was to evaluate whether long-term high-intensity interval training (HIIT) and moderate-intensity continuous training (MICT) protocols could differentially modulate changes in body composition, physical performance, inflammatory parameters, and adipocytokines in fat tissues and serum, as well as oxidative parameters and insulin-like growth factor 1 (IGF-1) levels in skeletal muscle tissue of aged rats. Middle-aged (18-month-old) female Sprague Dawley rats (n = 36) were subjected to 8 months of MICT (26-m MICT) or HIIT (26-m HIIT) treadmill training (45 min, 5 times per week), and the results were compared with those of age-matched sedentary controls (26-m SED); 8-month-old (8-m SED) and 18-month-old (18-m SED) rats served as aging sedentary controls. Body composition parameters; physical performance; serum and skeletal muscle oxidative stress parameters; levels of IGF-1, a serum and fat tissue inflammatory marker; adipocytokine (leptin, adiponectin) levels; and plasma glucose and lipid metabolism-related parameters were analyzed among the five groups. The percent fat and body fat to lean mass ratio increased as a main effect with age, whereas 26-m HIIT but not 26-m MICT attenuated these alterations. The 26-m HIIT group showed a larger improvement in grip strength compared to that of 26-m MICT, with a similar increase in inclined plane performance, maximum running speed, and exhaustion over time as compared with the 26-m SED group. Notably, the 26-m HIIT group showed lower high-sensitivity C-reactive protein levels and higher IL-10 in serum compared with those of the 26-m SED and 26-m MICT groups. Both exercise protocols promoted increased skeletal muscle IGF-1 and decreased serum IGF-1 and adiponectin relative to those in the 26-m SED group, whereas only 26-m HIIT dampened the age-related decrease in plasma free fatty acids and increased serum leptin, along with providing lower fat tissue leptin as compared with that in the 26-m SED group. Moreover, the 26-m HIIT group showed lower serum and skeletal muscle malonylaldehyde and skeletal muscle 8-hydroxydeoxyguanosine (8-OHdG) levels than those in the 26-m MICT group, albeit similar decreases in serum and skeletal muscle 4-hydroxynonenal and serum 8-OHdG and increases in skeletal muscle superoxide dismutase 2 activity. In conclusion, HIIT initiated late in life exhibited greater beneficial effects in ameliorating aged-related elevations in oxidative stress and inflammation, as well as dysfunction of circulating adipocytokine levels, than a volume-matched MICT program. HIIT may therefore contribute to improvements in body composition and physical performance changes associated with aging.
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Affiliation(s)
- Fang-Hui Li
- School of Sport Sciences, Nanjing Normal University, Nanjing, China.
| | - Lei Sun
- School of Sport Sciences, Nanjing Normal University, Nanjing, China
| | - Min Zhu
- School of Sport Sciences, Nanjing Normal University, Nanjing, China
| | - Tao Li
- Laboratory of Laser Sports Medicine, South China Normal University, Guangzhou, China
| | - Hao-En Gao
- School of Sport Sciences, Nanjing Normal University, Nanjing, China
| | - Da-Shuai Wu
- School of Sport Sciences, Nanjing Normal University, Nanjing, China
| | - Ling Zhu
- Laboratory of Laser Sports Medicine, South China Normal University, Guangzhou, China
| | - Rui Duan
- Laboratory of Laser Sports Medicine, South China Normal University, Guangzhou, China
| | - Timon Cheng-Yi Liu
- Laboratory of Laser Sports Medicine, South China Normal University, Guangzhou, China.
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Vella CA, Cushman M, Van Hollebeke RB, Allison MA. Associations of Abdominal Muscle Area and Radiodensity with Adiponectin and Leptin: The Multiethnic Study of Atherosclerosis. Obesity (Silver Spring) 2018; 26:1234-1241. [PMID: 29877610 PMCID: PMC6014896 DOI: 10.1002/oby.22208] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Revised: 04/16/2018] [Accepted: 04/17/2018] [Indexed: 12/25/2022]
Abstract
OBJECTIVE This study examined the associations of muscle area and radiodensity with adiponectin and leptin. METHODS A total of 1,944 participants who enrolled in the Multi-Ethnic Study of Atherosclerosis underwent computed tomography to quantify body composition and measurements of adiponectin, leptin, interleukin-6, C-reactive protein, and resistin. RESULTS The mean age and BMI of participants were 64.7 years and 28.1 kg/m2 and 49% were female. With adjustment for age, gender, race/ethnicity, traditional cardiovascular disease risk factors, inflammatory biomarkers, physical activity, and sedentary behavior, a 1-SD increment in total abdominal, stability, and locomotor muscle area was associated with a 19%, 17%, and 12% lower adiponectin level, respectively (P < 0.01 for all) but not leptin (P > 0.05). Muscle radiodensity was more robustly associated with adiponectin and leptin in the multivariable linear regression models. That is, with full adjustment for all covariates, a 1-SD increment in total abdominal, stability, and locomotor muscle radiodensity was associated with a 31%, 31%, and 18% lower adiponectin level (P < 0.01 for all) and a 6.7%, 4.6%, and 8.1% higher leptin level (P < 0.05 for all), respectively. CONCLUSIONS The data suggest that increases in muscle area and radiodensity may have positive impacts on chronic inflammation and, in turn, reduce the risk of cardiometabolic disease.
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Affiliation(s)
- Chantal A Vella
- Department of Movement Sciences and WWAMI Medical Education Program, University of Idaho, Moscow, Idaho, USA
| | - Mary Cushman
- Hematology and Oncology Division, Department of Medicine, University of Vermont, Colchester, Vermont, USA
| | - Rachel B Van Hollebeke
- Department of Family Medicine and Public Health, University of California San Diego, San Diego, California, USA
| | - Matthew A Allison
- Department of Family Medicine and Public Health, University of California San Diego, San Diego, California, USA
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Associations between lean mass and leptin in men with chronic spinal cord injury: Results from the FRASCI-muscle study. PLoS One 2018; 13:e0198969. [PMID: 29949600 PMCID: PMC6021064 DOI: 10.1371/journal.pone.0198969] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 05/28/2018] [Indexed: 11/20/2022] Open
Abstract
Leptin is an adipo-myokine that regulates appetite and energy expenditure by a neuroendocrine feedback loop. Leptin levels are positively correlated with BMI in the spinal cord injury population and leptin levels are greater in individuals with spinal cord injury compared to uninjured controls. Leptin is produced in multiple tissues, including fat, bone, and skeletal muscle and is a putative biomarker of sedentary behavior in older adults. We assessed body composition leptin, adiponectin, and IL-6 levels in 205 men with chronic spinal cord injury. We found no association between age, injury duration, injury level, injury completeness, or walking status and leptin. There was a significant positive association between lean mass and leptin in men with SCI that was independent of fat. Adjusting for body composition, leptin levels were positively associated with IL-6 and negatively associated with adiponectin levels. When considering men with SCI and sarcopenic obesity, only fat mass remained positively associated with leptin. We found no association between IL-6, adiponectin, or lean mass and leptin in the sarcopenic obesity group. Our findings suggest that lean mass is an under recognized, but substantial, source of circulating leptin. Furthermore, SCI-related sarcopenic obesity may result in dysregulated adipo-myokine metabolism with local and systemic physiologic effects.
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Body composition and cardiometabolic health: the need for novel concepts. Eur J Clin Nutr 2018; 72:638-644. [PMID: 29748654 DOI: 10.1038/s41430-018-0158-2] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 02/20/2018] [Accepted: 02/28/2018] [Indexed: 12/31/2022]
Abstract
It seems reasonable that overweight and obesity should be defined based on body composition rather than indirect indices like BMI or waist circumference. The use of conventional parameters like fat mass or visceral fat is however of similar and limited value for disease risk prediction at the population level and does not contribute much beyond the use of simple BMI or waist circumference. This conundrum may be partly explained by using complex phenotypes (e.g., Metabolic Syndrome or whole body insulin resistance) rather than more disease-specific outcomes like liver- and muscle insulin resistance. In addition, there are multifactorial causes of similar body composition phenotypes that may add to explain the variance in metabolic consequences of these phenotypes. An intriguing hypothesis is that fat mass represents the metabolic load that interacts with fat-free mass that stands for metabolic capacity to determine disease risk. This concept has important implications for assessment of healthy growth and development and when it is challenged with weight gain in adults. Integration of body composition information at the whole body, organ-tissue and cellular level is not required to improve the diagnosis of obesity but facilitates a better understanding of the etiology of obesity-associated metabolic complications.
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Sawicka AK, Hartmane D, Lipinska P, Wojtowicz E, Lysiak-Szydlowska W, Olek RA. l-Carnitine Supplementation in Older Women. A Pilot Study on Aging Skeletal Muscle Mass and Function. Nutrients 2018; 10:nu10020255. [PMID: 29473908 PMCID: PMC5852831 DOI: 10.3390/nu10020255] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2017] [Revised: 02/02/2018] [Accepted: 02/17/2018] [Indexed: 12/21/2022] Open
Abstract
Skeletal muscle wasting, associated with aging, may be regulated by the inflammatory cytokines as well as by insulin-like growth factor 1 (IGF-1). l-carnitine possesses anti-inflammatory properties and increases plasma IGF-1 concentration, leading to the regulation of the genes responsible for protein catabolism and anabolism. The purpose of the present study was to evaluate the effect of a 24-week l-carnitine supplementation on serum inflammatory markers, IGF-1, body composition and skeletal muscle strength in healthy human subjects over 65 years of age. Women between 65 and 70 years of age were supplemented for 24 weeks with either 1500 mg l-carnitine-l-tartrate or an isonitrogenous placebo per day in a double-blind fashion. Before and after the supplementation protocol, body mass and composition, as well as knee extensor and flexor muscle strength were determined. In the blood samples, free carnitine, interleukin-6, tumor necrosis factor-α, C-reactive protein and IGF-1 were determined. A marked increase in free plasma carnitine concentration was observed due to l-carnitine supplementation. No substantial changes in other parameters were noted. In the current study, supplementation for 24 weeks affected neither the skeletal muscle strength nor circulating markers in healthy women over 65 years of age. Positive and negative aspects of l-carnitine supplementation need to be clarified.
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Affiliation(s)
- Angelika K Sawicka
- Department of Bioenergetics and Nutrition, Gdansk University of Physical Education and Sport, 80-336 Gdansk, Poland.
| | - Dace Hartmane
- Latvian Institute of Organic Synthesis, LV-1006 Riga, Latvia.
| | - Patrycja Lipinska
- Institute of Physical Culture, Kazimierz Wielki University, 85-091 Bydgoszcz, Poland.
| | - Ewa Wojtowicz
- Department of Anatomy and Anthropology, Gdansk University of Physical Education and Sport, 80-336 Gdansk, Poland.
| | | | - Robert A Olek
- Department of Bioenergetics and Nutrition, Gdansk University of Physical Education and Sport, 80-336 Gdansk, Poland.
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Takeuchi M, Tsuboi A, Minato S, Yano M, Kitaoka K, Kurata M, Kazumi T, Fukuo K. Elevated serum adiponectin and tumor necrosis factor-α and decreased transthyretin in Japanese elderly women with low grip strength and preserved muscle mass and insulin sensitivity. BMJ Open Diabetes Res Care 2018; 6:e000537. [PMID: 30233803 PMCID: PMC6135424 DOI: 10.1136/bmjdrc-2018-000537] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 08/11/2018] [Accepted: 08/15/2018] [Indexed: 12/25/2022] Open
Abstract
OBJECTIVE To determine if adiponectin levels are associated with low grip strength among the elderly independently of insulin resistance and inflammation. RESEARCH DESIGN AND METHODS Cross-sectional associations were analyzed by logistic regression between low grip strength and body composition, elevated serum adiponectin (≥20 mg/L), and biomarkers of nutritious stasis, insulin resistance and inflammation in 179 community-living Japanese women. Sarcopenia was evaluated using the Asian criteria. RESULTS No women had sarcopenia. In bivariate analyses, low grip strength (n=68) was positively associated with age, log tumor necrosis factor-α (TNF-α) and hyperadiponectinemia (n=37) and inversely with body weight, height, skeletal muscle mass, serum albumin, transthyretin (TTR), fat mass, serum zinc and hemoglobin (all p<0.01). In a fully adjusted model, TTR (0.90: 0.83-0.98, p=0.01) in addition to age (p=0.007), height (p=0.004) and skeletal muscle mass (p=0.008) emerged as independent determinants of low grip strength. When TTR was removed from the full model, TNF-α was associated with low grip strength (7.7; 1.3-45.8, p=0.02). Mean waist circumference and high-density lipoprotein cholesterol did not differ between women with and without low grip strength and were within the respective normal range. Women with hyperadiponectinemia had higher percentage of women with low grip strength and lower grip strength (both p<0.01). CONCLUSIONS Hyperadiponectinemia and elevated TNF-α in addition to decreased TTR, a biomarker of age-related catabolic states, were found in community-living Japanese elderly women with low grip strength and preserved muscle mass and insulin sensitivity.
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Affiliation(s)
- Mika Takeuchi
- Department of Food Sciences and Nutrition, School of Human Environmental Sciences, Mukogawa Women’s University, Nishinomiya, Japan
| | - Ayaka Tsuboi
- Research Institute for Nutrition Sciences, Mukogawa Women’s University, Nishinomiya, Japan
- Department of Nutrition, Osaka City Juso Hospital, Osaka, Japan
| | - Satomi Minato
- Research Institute for Nutrition Sciences, Mukogawa Women’s University, Nishinomiya, Japan
- Graduate School of Human Science and Environment, University of Hyogo, Himeji, Japan
| | - Megumu Yano
- Research Institute for Nutrition Sciences, Mukogawa Women’s University, Nishinomiya, Japan
| | - Kaori Kitaoka
- Research Institute for Nutrition Sciences, Mukogawa Women’s University, Nishinomiya, Japan
- Department of Nutritional Sciences for Well-being, Faculty of Health Sciences for Welfare, Kansai University of Welfare Sciences, Kashiwara, Japan
| | - Miki Kurata
- Department of Food Sciences and Nutrition, School of Human Environmental Sciences, Mukogawa Women’s University, Nishinomiya, Japan
- Department of Nutritional Sciences for Well-being, Faculty of Health Sciences for Welfare, Kansai University of Welfare Sciences, Kashiwara, Japan
| | - Tsutomu Kazumi
- Research Institute for Nutrition Sciences, Mukogawa Women’s University, Nishinomiya, Japan
- Diabetes Division, Department of Medicine, Kohnan Kakogawa Hospital, Kakogawa, Japan
| | - Keisuke Fukuo
- Department of Food Sciences and Nutrition, School of Human Environmental Sciences, Mukogawa Women’s University, Nishinomiya, Japan
- Research Institute for Nutrition Sciences, Mukogawa Women’s University, Nishinomiya, Japan
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Carvalho LP, Basso-Vanelli RP, Di Thommazo-Luporini L, Mendes RG, Oliveira-Junior MC, Vieira RDP, Bonjorno-Junior JC, Oliveira CR, Luporini R, Borghi-Silva A. Myostatin and adipokines: The role of the metabolically unhealthy obese phenotype in muscle function and aerobic capacity in young adults. Cytokine 2017; 107:118-124. [PMID: 29246653 DOI: 10.1016/j.cyto.2017.12.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 08/16/2017] [Accepted: 12/06/2017] [Indexed: 02/07/2023]
Abstract
Obesity is often associated with metabolic disorders. However, some obese people can present a metabolically healthy phenotype, despite having excessive body fat. Obesity-related cytokines, such as myostatin (MSTN), leptin (LP) and adiponectin (ADP) appear to be key factors for the regulation of muscle and energy metabolism. Our aim was to compare lipid, glucose-insulin and inflammatory (tumor necrosis factor alpha; TNF-α) profiles, muscle function, energy expenditure and aerobic capacity between healthy normal-weight (NW) adults, metabolically healthy obese (MHO) and metabolically unhealthy obese (MUHO) adults; to study the associations between these outcomes and the cytokines MSTN, ADP, LP; and to establish cutoffs for MSTN and LP/ADP to identify the MUHO phenotype. Sixty-one young adults (NW, n = 24; MHO, n = 16; MUHO, n = 21) underwent body composition (body fat -BF and muscle mass - MM), energy expenditure at rest (RER) and aerobic capacity (VO2peak) evaluation, muscle strength and endurance tests and blood profile characterization (glucose-insulin homeostasis and serum MSTN, ADP, LP and TNF-α). MHO and MUHO had a BMI ≥ 30 kg m-2. MUHO was defined as presenting ≥3 criteria for metabolic syndrome (NCEP/ATPIII) in association with insulin resistance (HOMA-IR ≥3.46). MSTN and LP/ADP were associated with MM, MetS and glucose-insulin profile; MSTN was associated with TNF-α and only LP/ADP was associated with parameters of obesity and VO2peak. Neither MSTN nor LP/ADP was associated with muscle functions (p < .05 for adjusted correlations). Both of them were able to discriminate the MUHO phenotype: MSTN [AUC(95%CI) = 0.71(0.55-0.86), MSTN > 517.3 pg/mL] and LP/ADP [AUC(95%CI) = 0.89(0.81-0.97), LP/ADP > 2.14 pg/ng]. In conclusion, high MSTN and LP/ADP are associated with MetS, glucose-insulin homeostasis impairment and low muscle mass. Myostatin is associated with TNF-α and leptin-to-adiponectin ratio is associated with body fatness and aerobic capacity. Neither MSTN nor LP/ADP is associated with energy expenditure, muscle strength and endurance. Myostatin and adipokines cutoffs can identify the metabolically unhealthy obese phenotype in young adults with acceptable accuracy.
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Affiliation(s)
- Lívia Pinheiro Carvalho
- Cardiopulmonary Physiotherapy Laboratory, Physiotherapy Department, Federal University of Sao Carlos, Sao Carlos, SP, Brazil.
| | - Renata Pedrolongo Basso-Vanelli
- Cardiopulmonary Physiotherapy Laboratory, Physiotherapy Department, Federal University of Sao Carlos, Sao Carlos, SP, Brazil
| | - Luciana Di Thommazo-Luporini
- Cardiopulmonary Physiotherapy Laboratory, Physiotherapy Department, Federal University of Sao Carlos, Sao Carlos, SP, Brazil
| | - Renata Gonçalves Mendes
- Cardiopulmonary Physiotherapy Laboratory, Physiotherapy Department, Federal University of Sao Carlos, Sao Carlos, SP, Brazil
| | - Manoel Carneiro Oliveira-Junior
- Laboratory of Pulmonary and Exercise Immunology (LABPEI)/Brazilian Institute of Teaching and Research in Pulmonary and Exercise Immunology (IBEPIPE), Nove de Julho University, Sao Paulo, SP, Brazil
| | - Rodolfo de Paula Vieira
- Brazilian Institute of Teaching and Research in Pulmonary and Exercise Immunology (IBEPIPE), School of Medical Sciences of Sao Jose dos Campos Humanitas and Universidade Brasil, Sao Jose dos Campos, SP, Brazil
| | | | | | - Rafael Luporini
- Medicine Department, Federal University of Sao Carlos, Sao Carlos, SP, Brazil
| | - Audrey Borghi-Silva
- Cardiopulmonary Physiotherapy Laboratory, Physiotherapy Department, Federal University of Sao Carlos, Sao Carlos, SP, Brazil
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Coto Montes A, Boga JA, Bermejo Millo C, Rubio González A, Potes Ochoa Y, Vega Naredo I, Martínez Reig M, Romero Rizos L, Sánchez Jurado PM, Solano JJ, Abizanda P, Caballero B. Potential early biomarkers of sarcopenia among independent older adults. Maturitas 2017; 104:117-122. [DOI: 10.1016/j.maturitas.2017.08.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 08/09/2017] [Accepted: 08/15/2017] [Indexed: 12/25/2022]
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Mercken EM, Capri M, Carboneau BA, Conte M, Heidler J, Santoro A, Martin-Montalvo A, Gonzalez-Freire M, Khraiwesh H, González-Reyes JA, Moaddel R, Zhang Y, Becker KG, Villalba JM, Mattison JA, Wittig I, Franceschi C, de Cabo R. Conserved and species-specific molecular denominators in mammalian skeletal muscle aging. NPJ Aging Mech Dis 2017. [PMID: 28649426 PMCID: PMC5460213 DOI: 10.1038/s41514-017-0009-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Aging is a complex phenomenon involving functional decline in multiple physiological systems. We undertook a comparative analysis of skeletal muscle from four different species, i.e. mice, rats, rhesus monkeys, and humans, at three different representative stages during their lifespan (young, middle, and old) to identify pathways that modulate function and healthspan. Gene expression profiling and computational analysis revealed that pathway complexity increases from mice to humans, and as mammals age, there is predominantly an upregulation of pathways in all species. Two downregulated pathways, the electron transport chain and oxidative phosphorylation, were common among all four species in response to aging. Quantitative PCR, biochemical analysis, mitochondrial DNA measurements, and electron microscopy revealed a conserved age-dependent decrease in mitochondrial content, and a reduction in oxidative phosphorylation complexes in monkeys and humans. Western blot analysis of key proteins in mitochondrial biogenesis discovered that (i) an imbalance toward mitochondrial fusion occurs in aged skeletal muscle and (ii) mitophagy is not overtly affected, presumably leading to the observed accumulation of abnormally large, damaged mitochondria with age. Select transcript expression analysis uncovered that the skeletal inflammatory profile differentially increases with age, but is most pronounced in humans, while increased oxidative stress (as assessed by protein carbonyl adducts and 4-hydroxynonenal) is common among all species. Expression studies also found that there is unique dysregulation of the nutrient sensing pathways among the different species with age. The identification of conserved pathways indicates common molecular mechanisms intrinsic to health and lifespan, whereas the recognition of species-specific pathways emphasizes the importance of human studies for devising optimal therapeutic modalities to slow the aging process. Aging is a complex phenomenon involving functional declines in multiple physiological systems with the passage of time. Focusing on skeletal muscle, a group of international scientists identified pathways involved in healthspan and by determining global gene expression profiles across species they exposed common mechanisms fundamental to the aging process. Their experimental design involved comparative analysis of mice, rats, rhesus monkeys and humans, targeting three key time points during their respective lifespans. Pathways related to oxidative stress, inflammation and nutrient signaling, which function collectively to affect the quality and status of mitochondria, emerged across all species in an age-influenced manner. The identification of conserved pathways reveals molecular mechanisms intrinsic to health and survival, whereas the unveiling of species-specific pathways emphasizes the importance of human studies for devising optimal therapeutic modalities to slow the aging process.
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Affiliation(s)
- Evi M Mercken
- Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, 251 Bayview Boulevard, Baltimore, MD 21224 USA
| | - Miriam Capri
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, 40126 Bologna, Italy.,Interdepartmental Centre "L. Galvani" (CIG), University of Bologna, 40126 Bologna, Italy
| | - Bethany A Carboneau
- Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, 251 Bayview Boulevard, Baltimore, MD 21224 USA
| | - Maria Conte
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, 40126 Bologna, Italy.,Interdepartmental Centre "L. Galvani" (CIG), University of Bologna, 40126 Bologna, Italy
| | - Juliana Heidler
- Functional Proteomics, SFB815 Core Unit, Cluster of Excellence Frankfurt "Macromolecular Complexes," Goethe-University, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
| | - Aurelia Santoro
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, 40126 Bologna, Italy.,Interdepartmental Centre "L. Galvani" (CIG), University of Bologna, 40126 Bologna, Italy
| | - Alejandro Martin-Montalvo
- Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, 251 Bayview Boulevard, Baltimore, MD 21224 USA
| | - Marta Gonzalez-Freire
- Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, 251 Bayview Boulevard, Baltimore, MD 21224 USA
| | - Husam Khraiwesh
- Departamento de Biología Celular, Fisiología e Inmunología, Universidad de Córdoba, Campus de Excelencia Internacional Agroalimentario ceiA3, Campus Rabanales Edificio Severo Ochoa, 3ª planta, 14014 Córdoba, Spain
| | - José A González-Reyes
- Departamento de Biología Celular, Fisiología e Inmunología, Universidad de Córdoba, Campus de Excelencia Internacional Agroalimentario ceiA3, Campus Rabanales Edificio Severo Ochoa, 3ª planta, 14014 Córdoba, Spain
| | - Ruin Moaddel
- Bioanalytical and Drug Development Unit, National institute on Aging, National Institutes of Health, 251 Bayview Boulevard, Baltimore, MD 21224 USA
| | - Yongqing Zhang
- Gene Expression and Genomics Unit, National Institute on Aging, National Institutes of Health, 251 Bayview Boulevard, Baltimore, MD 21224 USA
| | - Kevin G Becker
- Gene Expression and Genomics Unit, National Institute on Aging, National Institutes of Health, 251 Bayview Boulevard, Baltimore, MD 21224 USA
| | - José M Villalba
- Departamento de Biología Celular, Fisiología e Inmunología, Universidad de Córdoba, Campus de Excelencia Internacional Agroalimentario ceiA3, Campus Rabanales Edificio Severo Ochoa, 3ª planta, 14014 Córdoba, Spain
| | - Julie A Mattison
- Translational Gerontology Branch, National Institute on Aging, Intramural Research Program, Poolesville, MD 20837 USA
| | - Ilka Wittig
- Functional Proteomics, SFB815 Core Unit, Cluster of Excellence Frankfurt "Macromolecular Complexes," Goethe-University, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany.,German Center of Cardiovascular Research (DZHK), Partner site RheinMain, Frankfurt, Germany
| | - Claudio Franceschi
- IRCCS, Institute of Neurological Sciences of Bologna, 40139 Bologna, Italy
| | - Rafael de Cabo
- Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, 251 Bayview Boulevard, Baltimore, MD 21224 USA
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Hamrick MW. Role of the Cytokine-like Hormone Leptin in Muscle-bone Crosstalk with Aging. J Bone Metab 2017; 24:1-8. [PMID: 28326295 PMCID: PMC5357607 DOI: 10.11005/jbm.2017.24.1.1] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Accepted: 12/20/2016] [Indexed: 12/14/2022] Open
Abstract
The cytokine-like hormone leptin is a classic adipokine that is secreted by adipocytes, increases with weight gain, and decreases with weight loss. Additional studies have, however, shown that leptin is also produced by skeletal muscle, and leptin receptors are abundant in both skeletal muscle and bone-derived mesenchymal (stromal) stem cells. These findings suggest that leptin may play an important role in muscle-bone crosstalk. Leptin treatment in vitro increases the expression of myogenic genes in primary myoblasts, and leptin treatment in vivo increases the expression of microRNAs involved in myogenesis. Bone marrow adipogenesis is associated with low bone mass in humans and rodents, and leptin can reduce marrow adipogenesis centrally through its receptors in the hypothalamus as well as directly via its receptors in bone marrow stem cells. Yet, central leptin resistance can increase with age, and low circulating levels of leptin have been observed among the frail elderly. Thus, aging appears to significantly alter leptin-mediated crosstalk among various organs and tissues. Aging is associated with bone loss and muscle atrophy, contributing to frailty, postural instability, and the incidence of falls. Therapeutic interventions such as protein and amino acid supplementation that can increase muscle mass and muscle-derived leptin may have multiple benefits for the elderly that can potentially reduce the incidence of falls and fractures.
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Affiliation(s)
- Mark W. Hamrick
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University, Augusta, GA, USA
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