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Hao JQ, Zhuang ZX, Hu SY, Zhang YJ, Zhang JW, He FJ, Wang R, Zhuang W, Wang MJ. The association between non‑high‑density lipoprotein cholesterol to high‑density lipoprotein cholesterol ratio (NHHR) and low muscle mass in adults aged 20-59: a population-based study in the United States. Lipids Health Dis 2024; 23:274. [PMID: 39198823 PMCID: PMC11350999 DOI: 10.1186/s12944-024-02243-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Accepted: 08/07/2024] [Indexed: 09/01/2024] Open
Abstract
BACKGROUND The ratio between non-high-density lipoprotein cholesterol and high-density lipoprotein cholesterol (NHHR) is a reliable marker for assessing the risk linked to lipid metabolism disorders. Sarcopenia, characterized by age-related loss of muscle mass and strength/function, includes the assessment of muscle mass, muscle strength, and muscle-specific strength. However, research into NHHR's relationship with low muscle mass risk remains unexplored. METHODS Our study utilized a cross-sectional approach, examining data derived from the National Health and Nutrition Examination Survey (NHANES) from 2011 to 2018. Through multivariable linear and logistic regression, we investigated the relationships of the NHHR with muscle mass and low muscle mass. We visualized the results using smoothing curves and assessed threshold effects. We also performed various subgroup and sensitivity analyses. RESULTS This research encompassed 9,012 participants and demonstrated significant nonlinear associations between NHHR and ALMBMI or low muscle mass risk in a generalized additive model (GAM), pinpointing critical NHHR values (3.328 and 3.367) where changes in NHHR significantly impacted ALMBMI and low muscle mass risk. CONCLUSIONS The NHHR demonstrates a significant association with an increased risk of low muscle mass among middle-aged Americans. This ratio has potential as a predictive marker for low muscle mass. Further exploration of NHHR is expected to aid in advancing preventive and therapeutic measures for this condition.
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Affiliation(s)
- Jia-Qi Hao
- Gastric Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Department of General Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Zi-Xuan Zhuang
- Colorectal Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Department of General Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Shu-Yue Hu
- Neonatology Department, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Yu-Jie Zhang
- Gastric Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Department of General Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Jia-Wan Zhang
- Gastric Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Department of General Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Feng-Jun He
- Gastric Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Department of General Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Rui Wang
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Wen Zhuang
- Gastric Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Department of General Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Mo-Jin Wang
- Gastric Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
- Department of General Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
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Huang H, Yu X, Jiang S, Wang C, Chen Z, Chen D, Yang X, Zhao Q. The relationship between serum lipid with sarcopenia: Results from the NHANES 2011-2018 and bidirectional Mendelian randomization study. Exp Gerontol 2024; 196:112560. [PMID: 39214262 DOI: 10.1016/j.exger.2024.112560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2024] [Revised: 08/19/2024] [Accepted: 08/23/2024] [Indexed: 09/04/2024]
Abstract
BACKGROUND The relationship between serum lipids and sarcopenia remains unclear due to conflicting results in previous studies. OBJECTIVE To explore the associations and potential causality between serum lipids, including high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), triglycerides (TG), and total cholesterol (TC), and sarcopenia. METHODS Data from the National Health and Nutrition Examination Survey (NHANES) were analysed using multivariable regression and restricted cubic splines (RCSs) to assess the associations between serum lipids and sarcopenia. Bidirectional Mendelian randomization (MR) was employed to investigate the causal relationships with sarcopenia-related traits such as appendicular lean mass (ALM), hand grip strength, and usual walking pace. RESULTS Serum HDL-C and TG levels were inversely associated with ALMBMI, with each 1-unit increase linked to a 0.13 % and 1.32 % decrease, respectively. Elevated TG, but not HDL-C, LDL-C, or TC levels, was significantly associated with an increased risk of sarcopenia (P for trend = 0.001). RCS analysis revealed a log-shaped dose-response relationship between TG and sarcopenia risk (P overall <0.001, P non-linear <0.001), with a cutoff value of 92.75 mg/dL. Genetically predicted HDL-C, LDL-C, and TG were associated with ALM. Conversely, ALM showed an inverse causal relationship with all four serum lipids. Additionally, genetically predicted usual walking pace influenced HDL-C and TG levels (P < 0.001). CONCLUSION The study reveals a nonlinear association between TG levels and sarcopenia risk, and a bidirectional association between lipid profiles and muscle mass, underscoring the need for further research to elucidate these mechanisms.
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Affiliation(s)
- Huanhuan Huang
- The First Affiliated Hospital of Chongqing Medical University, Department of Nursing, Chongqing, China; Chongqing Medical University, School of Nursing, Chongqing, China
| | - Xinyu Yu
- The First Affiliated Hospital of Chongqing Medical University, Department of Nursing, Chongqing, China; Chongqing Medical University, School of Nursing, Chongqing, China
| | - Siqi Jiang
- The First Affiliated Hospital of Chongqing Medical University, Department of Nursing, Chongqing, China; Chongqing Medical University, School of Nursing, Chongqing, China
| | - Chunni Wang
- The First Affiliated Hospital of Chongqing Medical University, Department of Nursing, Chongqing, China; Chongqing Medical University, School of Nursing, Chongqing, China
| | - Zhiyu Chen
- The People's Hospital of Rongchang District, Depart of Endocrinology, Chongqing, China
| | - Deqing Chen
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xuesen Yang
- Army Medical University, School of Tropical Medicine, College of Military Preventive Medicine, Chongqing, China
| | - Qinghua Zhao
- The First Affiliated Hospital of Chongqing Medical University, Department of Nursing, Chongqing, China; Chongqing Medical University, School of Nursing, Chongqing, China.
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Jang SY, Hwang SY, Jang A, Kim KJ, Yu JH, Kim NH, Yoo HJ, Kim NH, Baik SH, Choi KM. Association of remnant cholesterol with sarcopenia in Korean adults: a nationwide population-based study using data from the KNHANES. Front Endocrinol (Lausanne) 2024; 15:1391733. [PMID: 39247920 PMCID: PMC11377290 DOI: 10.3389/fendo.2024.1391733] [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: 02/26/2024] [Accepted: 08/05/2024] [Indexed: 09/10/2024] Open
Abstract
Background Mounting evidence indicates the importance of the interplay between skeletal muscles and lipid metabolism. Remnant cholesterol (remnant-C) is considered one of the principal residual risk factors for cardiovascular disease and metabolic disorders; however, there are limited studies on the impact of remnant-C on sarcopenia. Methods Data from the Korea National Health and Nutrition Examination Surveys (KNHANES) between 2008 and 2011 were used in this nationwide population-based study. In total, 17,408 participants were enrolled in this study. The subjects were categorized into four groups according to the quartile of remnant-C values. We conducted multivariable logistic regression analysis to evaluate the association between remnant-C and muscle mass measured using dual-energy X-ray absorptiometry. Results A total of 1,791 participants (10.3%) presented low muscle mass, and there was a sequential increase in the percentage of low muscle mass across remnant-C quartiles (Q1, 5.2%; Q2, 8.7%; Q3, 11.5%; Q4, 15.7%). In the full adjusted model, those in the highest remnant-C quartile group showed significantly increased odds ratio (OR) for low muscle mass compared with those in the lowest remnant-C group after adjusting for various confounding factors (OR = 1.33, 95% confidence interval (CI) = 1.06-1.68, P <0.05). A wide range of subgroups and sensitivity analyses showed consistent results, supporting the robustness of our findings. Conclusions Increased remnant-C value was associated with a high risk of low muscle mass in the Korean population. Remnant-C may be a novel marker for the prediction and management of sarcopenia in aging societies.
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Affiliation(s)
- Soo Yeon Jang
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul, Republic of Korea
| | - Soon-Young Hwang
- Department of Biostatistics, Korea University College of Medicine, Seoul, Republic of Korea
| | - Ahreum Jang
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul, Republic of Korea
| | - Kyeong Jin Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul, Republic of Korea
| | - Ji Hee Yu
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul, Republic of Korea
| | - Nam Hoon Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul, Republic of Korea
| | - Hye Jin Yoo
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul, Republic of Korea
| | - Nan Hee Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul, Republic of Korea
| | - Sei Hyun Baik
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul, Republic of Korea
| | - Kyung Mook Choi
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul, Republic of Korea
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Yang Q, Zhang Z, He P, Mao X, Jing X, Hu Y, Jing L. LC/MS-Based Untargeted Lipidomics Reveals Lipid Signatures of Sarcopenia. Int J Mol Sci 2024; 25:8793. [PMID: 39201479 PMCID: PMC11354784 DOI: 10.3390/ijms25168793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2024] [Revised: 07/27/2024] [Accepted: 07/29/2024] [Indexed: 09/02/2024] Open
Abstract
Sarcopenia, a multifactorial systemic disorder, has attracted extensive attention, yet its pathogenesis is not fully understood, partly due to limited research on the relationship between lipid metabolism abnormalities and sarcopenia. Lipidomics offers the possibility to explore this relationship. Our research utilized LC/MS-based nontargeted lipidomics to investigate the lipid profile changes as-sociated with sarcopenia, aiming to enhance understanding of its underlying mechanisms. The study included 40 sarcopenia patients and 40 control subjects matched 1:1 by sex and age. Plasma lipids were detected and quantified, with differential lipids identified through univariate and mul-tivariate statistical analyses. A weighted correlation network analysis (WGCNA) and MetaboAna-lyst were used to identify lipid modules related to the clinical traits of sarcopenia patients and to conduct pathway analysis, respectively. A total of 34 lipid subclasses and 1446 lipid molecules were detected. Orthogonal partial least squares discriminant analysis (OPLS-DA) identified 80 differen-tial lipid molecules, including 38 phospholipids. Network analysis revealed that the brown module (encompassing phosphatidylglycerol (PG) lipids) and the yellow module (containing phosphati-dylcholine (PC), phosphatidylserine (PS), and sphingomyelin (SM) lipids) were closely associated with the clinical traits such as maximum grip strength and skeletal muscle mass (SMI). Pathway analysis highlighted the potential role of the glycerophospholipid metabolic pathway in lipid me-tabolism within the context of sarcopenia. These findings suggest a correlation between sarcopenia and lipid metabolism disturbances, providing valuable insights into the disease's underlying mechanisms and indicating potential avenues for further investigation.
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Affiliation(s)
| | | | | | | | | | | | - Lipeng Jing
- Institute of Epidemiology and Statistics, School of Public Health, Lanzhou University, Lanzhou 730000, China; (Q.Y.); (Z.Z.); (P.H.); (X.M.); (X.J.); (Y.H.)
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Wu J, Wang S, Zhuang H, Wang W, Wang Y, Chen Y, Huang Z, Chen C, Chen X. Proteomics Analysis Provides Insights into the Role of Lipid Metabolism in T2DM-Related Sarcopenia. ACS OMEGA 2024; 9:34056-34069. [PMID: 39130597 PMCID: PMC11308078 DOI: 10.1021/acsomega.4c04668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Revised: 07/07/2024] [Accepted: 07/22/2024] [Indexed: 08/13/2024]
Abstract
Sarcopenia has been recognized as an emerging complication of type 2 diabetes mellitus (T2DM). Currently, the pathogenesis of T2DM-related sarcopenia remains unclear. The aim of this study was to investigate the molecular mechanisms and potential therapeutic targets for T2DM-related sarcopenia. In this study, a T2DM-related sarcopenia mouse model was established using db/db mice. Proteins extracted from the gastrocnemius muscles of db/db mice and littermate control db/m mice were analyzed by a 4D label-free quantitative proteomics approach. A total of 131 upregulated and 68 downregulated proteins were identified as differentially expressed proteins (DEPs). Bioinformatics analysis revealed that DEPs were significantly enriched in lipid metabolism. Protein-protein interaction network analysis revealed that six hub proteins, including ACOX1, CPT2, ECI2, ACADVL, ACADL, and ECH1, were involved in the fatty acid oxidation. The hub protein-transcription factor-miRNA network was also constructed using the NetworkAnalyst tool. Finally, the hub proteins were validated by Western blotting and immunohistochemistry and further confirmed to be significantly negatively correlated with muscle mass and grip strength. Our study suggested that lipid metabolism, especially excessive fatty acid oxidation, may be a crucial contributor to the progression of T2DM-related sarcopenia and a common cause of the inter-relationship between T2DM and sarcopenia. Targeting lipid metabolism may be a promising therapeutic strategy for T2DM-related sarcopenia.
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Affiliation(s)
- Jingying Wu
- Department
of Cardiology, Second Affiliated Hospital
of Fujian Medical University, 950 Donghai Street, Fengze District, Quanzhou, Fujian Province 362000, China
| | - Shengnan Wang
- Department
of Cardiology, Second Affiliated Hospital
of Fujian Medical University, 950 Donghai Street, Fengze District, Quanzhou, Fujian Province 362000, China
| | - Huafeng Zhuang
- Department
of Orthopedics, Second Affiliated Hospital
of Fujian Medical University, 950 Donghai Street, Fengze District, Quanzhou, Fujian Province 362000, China
| | - Weichun Wang
- Department
of Cardiology, Second Affiliated Hospital
of Fujian Medical University, 950 Donghai Street, Fengze District, Quanzhou, Fujian Province 362000, China
| | - Yaoguo Wang
- Department
of Cardiology, Second Affiliated Hospital
of Fujian Medical University, 950 Donghai Street, Fengze District, Quanzhou, Fujian Province 362000, China
| | - Youfang Chen
- Medical
Research Center, Quanzhou Medical College, 2 Anji Road, Luojiang District, Quanzhou, Fujian Province 362000, China
- Department
of Clinical Medicine, Quanzhou Medical College, 2 Anji Road, Luojiang
District, Quanzhou, Fujian Province 362000, China
| | - Zhengping Huang
- Department
of Neurology, Second Affiliated Hospital
of Fujian Medical University, 950 Donghai Street, Fengze District, Quanzhou, Fujian Province 362000, China
| | - Chunnuan Chen
- Department
of Neurology, Second Affiliated Hospital
of Fujian Medical University, 950 Donghai Street, Fengze District, Quanzhou, Fujian Province 362000, China
| | - Xiaofeng Chen
- Department
of Cardiology, Second Affiliated Hospital
of Fujian Medical University, 950 Donghai Street, Fengze District, Quanzhou, Fujian Province 362000, China
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Yang L, Liu D, Jiang S, Li H, Chen L, Wu Y, Essien AE, Opoku M, Naranmandakh S, Liu S, Ru Q, Li Y. SIRT1 signaling pathways in sarcopenia: Novel mechanisms and potential therapeutic targets. Biomed Pharmacother 2024; 177:116917. [PMID: 38908209 DOI: 10.1016/j.biopha.2024.116917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 05/29/2024] [Accepted: 06/09/2024] [Indexed: 06/24/2024] Open
Abstract
Sarcopenia is an aging-related skeletal disease characterized by decreased muscle mass, strength, and physical function, severely affecting the quality of life (QoL) of the elderly population. Sirtuin 1 (SIRT1), as a nicotinamide adenine dinucleotide (NAD+)-dependent histone deacetylases, has been reported to participate in various aging-related signaling pathways and exert protective effect on many human diseases. SIRT1 functioned as an important role in the occurrence and progression of sarcopenia through regulating key pathways related to protein homeostasis, apoptosis, mitochondrial dysfunction, insulin resistance and autophagy in skeletal muscle, including SIRT1/Forkhead Box O (FoxO), AMP-activated protein kinase (AMPK)/SIRT1/nuclear factor κB (NF-κB), SIRT1/p53, AMPK/SIRT1/peroxisome proliferator-activated receptor gamma coactivator-1α (PGC-1α), and SIRT1/live kinase B1 (LKB1)/AMPK pathways. However, the specific mechanisms of these processes have not been fully illuminated. Currently, several SIRT1-mediated interventions on sarcopenia have been preliminarily developed, such as SIRT1 activator polyphenolic compounds, exercising and calorie restriction. In this review, we summarized the predominant mechanisms of SIRT1 involved in sarcopenia and therapeutic modalities targeting the SIRT1 signaling pathways for the prevention and prognosis of sarcopenia.
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Affiliation(s)
- Luning Yang
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China; Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, China
| | - Di Liu
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Shide Jiang
- Department of Orthopedics, The Central Hospital of Yongzhou, Yongzhou 425000, China
| | - Hengzhen Li
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Lin Chen
- Department of Health and Physical Education, Jianghan University, Wuhan 430056, China
| | - Yuxiang Wu
- Department of Health and Physical Education, Jianghan University, Wuhan 430056, China
| | - Anko Elijah Essien
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Michael Opoku
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Shinen Naranmandakh
- Department of chemistry, School of Arts and Sciences, National University of Mongolia, Ulaanbaatar 14201, Mongolia
| | - ShuGuang Liu
- Department of Joint Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China.
| | - Qin Ru
- Department of Health and Physical Education, Jianghan University, Wuhan 430056, China.
| | - Yusheng Li
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China.
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Wang Y, Tian X, Wang Z, Liu D, Zhao X, Sun X, Tu Z, Li Z, Zhao Y, Zheng S, Yao J. A novel peptide encoded by circ-SLC9A6 promotes lipid dyshomeostasis through the regulation of H4K16ac-mediated CD36 transcription in NAFLD. Clin Transl Med 2024; 14:e1801. [PMID: 39107881 PMCID: PMC11303264 DOI: 10.1002/ctm2.1801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 07/16/2024] [Accepted: 07/26/2024] [Indexed: 08/10/2024] Open
Abstract
BACKGROUND As the leading cause of end-stage liver disease, nonalcoholic fatty liver disease (NAFLD) is mainly induced by lipid dyshomeostasis. The translation of endogenous circular RNAs (circRNAs) is closely related to the progression of various diseases, but the involvement of circRNAs in NAFLD has not been determined. METHODS Combined high-throughput circRNA profiles were used to identify circRNAs with translational potential. The underlying molecular mechanisms were investigated by RNA sequencing, pull-down/MS and site-specific mutagenesis. RESULTS In this study, we focused on circ-SLC9A6, an abnormally highly expressed circRNA in human and mouse liver tissue during NAFLD development that exacerbates metabolic dyshomeostasis in hepatocytes by encoding a novel peptide called SLC9A6-126aa in vivo and in vitro. YTHDF2-mediated degradation of m6A-modified circ-SLC9A6 was found to be essential for the regulation of SLC9A6-126aa expression. We further found that the phosphorylation of SLC9A6-126aa by AKT was crucial for its cytoplasmic localization and the maintenance of physiological homeostasis, whereas high-fat stress induced substantial translocation of unphosphorylated SLC9A6-126aa to the nucleus, resulting in a vicious cycle of lipid metabolic dysfunction. Nuclear SLC9A6-126aa promotes transcriptional activation of the target gene CD36 and enhances its occupancy of the CD36 promoter locus by regulating MOF-mediated histone H4K16 acetylation. Hepatic CD36 depletion significantly ameliorated hyperactivated MAPK signalling and lipid disturbance in SLC9A6-126aa transgenic mice. Clinically, increasing levels of SLC9A6-126aa were observed during NAFLD progression and were found to be positively correlated with the CD36 and MAPK cascades. CONCLUSION This study revealed the role of circ-SLC9A6-derived SLC9A6-126aa in the epigenetic modification-mediated regulation of lipid metabolism. Our findings may provide promising therapeutic targets for NAFLD and new insights into the pathological mechanisms of metabolic diseases. HIGHLIGHTS Under normal circumstances, driven by m6A modification, YTHDF2 directly recognizes and degrades circ-SLC9A6, thereby inhibiting the translation of SLC9A6-126aa. Additionally, AKT1 phosphorylates and inhibits the nuclear translocation of SLC9A6-126aa. In NAFLD, lipid overload leads to YTHDF2 and AKT1 deficiency, ultimately increasing the expression and nuclear import of SLC9A6-126aa. Nuclear SLC9A6-126aa binds directly to the CD36 promoter and initiates CD36 transcription, which induces lipid dyshomeostasis.
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Affiliation(s)
- Yue Wang
- Department of PharmacologyDalian Medical UniversityDalianChina
| | - Xinyao Tian
- Department of SurgeryDivision of Hepatobiliary and Pancreatic SurgeryThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
- Department of SurgeryDivision of Hepatobiliary and Pancreatic SurgeryThe First Affiliated HospitalZhejiang University School of MedicineHangzhouChina
| | - Zhecheng Wang
- Department of PharmacologyDalian Medical UniversityDalianChina
| | - Deshun Liu
- Department of General SurgeryThe Second Affiliated Hospital of Dalian Medical UniversityDalianChina
| | - Xuzi Zhao
- Department of General SurgeryThe Second Affiliated Hospital of Dalian Medical UniversityDalianChina
| | - Xin Sun
- Department of PharmacologyDalian Medical UniversityDalianChina
| | - Zuoyu Tu
- Department of PharmacologyDalian Medical UniversityDalianChina
| | - Zekuan Li
- Department of SurgeryDivision of Hepatobiliary and Pancreatic SurgeryThe First Affiliated HospitalZhejiang University School of MedicineHangzhouChina
| | - Yan Zhao
- Department of PharmacologyDalian Medical UniversityDalianChina
| | - Shusen Zheng
- Department of SurgeryDivision of Hepatobiliary and Pancreatic SurgeryThe First Affiliated HospitalZhejiang University School of MedicineHangzhouChina
- Department of Hepatobiliary and Pancreatic SurgeryDepartment of Liver TransplantationShulan (Hangzhou) HospitalHangzhouChina
| | - Jihong Yao
- Department of PharmacologyDalian Medical UniversityDalianChina
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8
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Wang Y, Hu J, Shen H, Liu C, Yang L. Crosstalk between skeletal muscle ratio and cholesterol metabolism disorders: a cross-section study. BMC Endocr Disord 2024; 24:123. [PMID: 39044230 PMCID: PMC11267780 DOI: 10.1186/s12902-024-01660-y] [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: 04/14/2024] [Accepted: 07/19/2024] [Indexed: 07/25/2024] Open
Abstract
BACKGROUND Dysfunction of cholesterol metabolism may be associated with low skeletal muscle mass. This study aimed to explore the relationship between skeletal muscle mass and cholesterol metabolic disorders in adults. METHODS The data of a total of 5949 people with complete medical history data, biochemical data and body composition analysis were recruited. According to the serum cholesterol, low density lipoprotein (LDL), high density lipoprotein (HDL) and nonHDL, the population was divided into a disorder group and a normal group. Independent sample t tests, chi-square tests, Pearson's correlation analyses and binary logistic regression analyses were used to study the effect of body composition on abnormal cholesterol metabolism. According to BMI and sex, the population was divided into different subgroups, and binary logistic regression analysis was used to study the effect of the skeletal mass ratio on cholesteral metabolic disorders in different subgroups. RESULTS There were significant differences in sex, alcohol consumption, body weight, BMI, skeletal muscle mass index (SMI) [total skeletal muscle mass (kg)/height 2 (m2)] and skeletal muscle mass ratio (SMR) [total skeletal muscle mass (kg)/weight (kg) *100] between the disorder group (hypercholesterolemia, hyper-LDL, lower-HDL and hyper-nonHDL) and the normal group. Pearson correlation analysis revealed that the SMR was negatively correlated, while the SMI was positively correlated with cholesterol metabolic disorders in both sexes. The overweight group was older and had a greater SMI, abnormal cholesteral metabolism ratio and lower SMR than the normal-weight group. In the normal-weight group, the SMR was an independent protective factor against different kinds of cholesteral metabolic disorders in both sexes, while the SMI was a risk factor. In the overweight subgroup, the protective effect on HDL and nonHDL metabolism remained in the male subgroup but disappeared in the female subgroup. However, the SMI was an independent risk factor for different kinds of cholesteral metabolic disorders in both sexes. CONCLUSIONS SMR was an independent protective factor against cholesterol metabolic disorders in both males and females, especially in the normal weight group. SMI was an independent risk factor, especially in the overweight group.
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Affiliation(s)
- Yunle Wang
- Geriatrics Department, Shanghai Health and Medical Center, 67 Dajishan, Wuxi, Jiangsu, 214000, China
| | - Jun Hu
- Health Care Center, Shanghai Health and Medical Center, Wuxi, China
| | - Hui Shen
- Nutritional Department, Shanghai Health and Medical Center, Wuxi, China
| | - Chunxing Liu
- Medical Laboratory Department, Shanghai Health and Medical Center, Wuxi, China
| | - Lijuan Yang
- Geriatrics Department, Shanghai Health and Medical Center, 67 Dajishan, Wuxi, Jiangsu, 214000, China.
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9
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Waingerten-Kedem L, Aviram S, Blau A, Hayek T, Bengal E. P38α MAPK Coordinates Mitochondrial Adaptation to Caloric Surplus in Skeletal Muscle. Int J Mol Sci 2024; 25:7789. [PMID: 39063031 PMCID: PMC11277080 DOI: 10.3390/ijms25147789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Revised: 07/09/2024] [Accepted: 07/12/2024] [Indexed: 07/28/2024] Open
Abstract
Excessive calorie intake leads to mitochondrial overload and triggers metabolic inflexibility and insulin resistance. In this study, we examined how attenuated p38α activity affects glucose and fat metabolism in the skeletal muscles of mice on a high-fat diet (HFD). Mice exhibiting diminished p38α activity (referred to as p38αAF) gained more weight and displayed elevated serum insulin levels, as well as a compromised response in the insulin tolerance test, compared to the control mice. Additionally, their skeletal muscle tissue manifested impaired insulin signaling, leading to resistance in insulin-mediated glucose uptake. Examination of muscle metabolites in p38αAF mice revealed lower levels of glycolytic intermediates and decreased levels of acyl-carnitine metabolites, suggesting reduced glycolysis and β-oxidation compared to the controls. Additionally, muscles of p38αAF mice exhibited severe abnormalities in their mitochondria. Analysis of myotubes derived from p38αAF mice revealed reduced mitochondrial respiratory capacity relative to the myotubes of the control mice. Furthermore, these myotubes showed decreased expression of Acetyl CoA Carboxylase 2 (ACC2), leading to increased fatty acid oxidation and diminished inhibitory phosphorylation of pyruvate dehydrogenase (PDH), which resulted in elevated mitochondrial pyruvate oxidation. The expected consequence of reduced mitochondrial respiratory function and uncontrolled nutrient oxidation observed in p38αAF myotubes mitochondrial overload and metabolic inflexibility. This scenario explains the increased likelihood of insulin resistance development in the muscles of p38αAF mice compared to the control mice on a high-fat diet. In summary, within skeletal muscles, p38α assumes a crucial role in orchestrating the mitochondrial adaptation to caloric surplus by promoting mitochondrial biogenesis and regulating the selective oxidation of nutrients, thereby preventing mitochondrial overload, metabolic inflexibility, and insulin resistance.
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Affiliation(s)
- Liron Waingerten-Kedem
- Department of Biochemistry, The Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, P.O. Box 9649, Bat Galim, Haifa 31096, Israel; (L.W.-K.); (S.A.); (A.B.); (T.H.)
| | - Sharon Aviram
- Department of Biochemistry, The Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, P.O. Box 9649, Bat Galim, Haifa 31096, Israel; (L.W.-K.); (S.A.); (A.B.); (T.H.)
| | - Achinoam Blau
- Department of Biochemistry, The Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, P.O. Box 9649, Bat Galim, Haifa 31096, Israel; (L.W.-K.); (S.A.); (A.B.); (T.H.)
| | - Tony Hayek
- Department of Biochemistry, The Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, P.O. Box 9649, Bat Galim, Haifa 31096, Israel; (L.W.-K.); (S.A.); (A.B.); (T.H.)
- Department of Internal Medicine E, Rambam Health Care Campus, P.O. Box 9602, Bat Galim, Haifa 31096, Israel
| | - Eyal Bengal
- Department of Biochemistry, The Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, P.O. Box 9649, Bat Galim, Haifa 31096, Israel; (L.W.-K.); (S.A.); (A.B.); (T.H.)
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10
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He R, Ye Y, Zhu Q, Xie C. Association between non-high-density lipoprotein cholesterol to high-density lipoprotein cholesterol ratio and sarcopenia in individuals with cancer: a cross-sectional study. Lipids Health Dis 2024; 23:217. [PMID: 39014376 PMCID: PMC11251101 DOI: 10.1186/s12944-024-02205-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2024] [Accepted: 07/04/2024] [Indexed: 07/18/2024] Open
Abstract
BACKGROUND Cancer and sarcopenia are both closely related to lipid metabolism, but the relationship between lipid metabolism and patients with cancer and sarcopenia has not been thoroughly studied. The non-high-density lipoprotein cholesterol to high-density lipoprotein cholesterol ratio (NHHR) is a reliable measure of lipid metabolism. The purpose of this study was to determine the possible relationship between the NHHR and sarcopenia in individuals with cancer. METHODS Data from the National Health and Nutrition Examination Survey (NHANES) database for individuals with cancer, with and without sarcopenia was analyzed using weighted multiple regression equations, weighted regression cubic spline (RCS) analysis, and weighted subgroup analysis. RESULTS In total, 1,602 individuals with cancer were included, of whom 17.1% had sarcopenia. In Adjusted Model 2, the occurrence of sarcopenia was found to be significantly associated with a higher NHHR in cancer (95% confidence interval [CI]:1.01-1.39, P = 0.036). Individuals with high a NHHR had a 2.09-fold higher risk of developing sarcopenia in comparison to those with a low NHHR (95% CI:1.12-3.92, P = 0.022). RCS analysis further identified a U-shaped non-linear relationship between females with cancer and the muscle index. Subgroup analysis indicated that sex was a significant stratifying factor, whereas age, race, marital status, smoking and drinking habits, and history of cardiovascular disease, arthritis, hypertension, and diabetes had no significant impact. CONCLUSION From the perspective of lipid metabolism, the NHHR may serve as an indicator for monitoring and preventing the occurrence of sarcopenia in individuals with cancer, particularly for females with cancer who appear to have greater sensitivity.
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Affiliation(s)
- Ran He
- The First School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Youjun Ye
- The Third Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Qilei Zhu
- The Third Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Changsheng Xie
- Department of Medical Oncology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), Hangzhou, China.
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11
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Zhou W, Du Z. Oleuropein mitigates non-alcoholic fatty liver disease (NAFLD) and modulates liver metabolites in high-fat diet-induced obese mice via activating PPARα. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024. [PMID: 38952322 DOI: 10.1002/jsfa.13691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 04/08/2024] [Accepted: 04/10/2024] [Indexed: 07/03/2024]
Abstract
BACKGROUND This study aimed to elucidate the mechanism of oleuropein (OLE) ameliorates non-alcoholic fatty liver disease (NAFLD) and its underlying mechanisms. RESULTS Male C57BL/6J mice were fed either a low-fat diet (LFD), a high-fat diet (HFD), or a HFD supplemented with 0.03% (w/w) OLE for 16 weeks. OLE supplementation decreased body weight and liver weight, improved serum lipid profiles, and ameliorated HFD-induced hepatic dysfunction. Liver metabolomics analysis revealed that OLE increased the levels of nicotinamide, tauroursodeoxycholic acid, taurine, and docosahexaenoic acid, which were beneficial for lipid homeostasis and inflammation regulation. OLE exerted its protective effects by activating peroxisome proliferator-activated receptor alpha (PPARα), a key transcription factor that regulates fibroblast growth factor 21 (FGF21) expression and modulates lipid oxidation, lipogenesis and inflammation pathways. Importantly, OLE supplementation did not significantly affect body weight or liver weight in PPARα knockout (PPARα KO) mice, indicating that PPARα is essential for OLE-mediated NAFLD prevention. CONCLUSION Our results suggest that OLE alleviates NAFLD in mice by activating PPARα and modulating liver metabolites. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Wei Zhou
- Center for Prevention and Treatment of Cardiovascular Diseases, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Zheng Du
- The First People's Hospital of Lianyungang Public Health Department, Lianyungang, China
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12
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Liang R, Xiang Q, Dai M, Lin T, Xie D, Song Q, Liu Y, Yue J. Identification of nicotinamide N-methyltransferase as a promising therapeutic target for sarcopenia. Aging Cell 2024:e14236. [PMID: 38838088 DOI: 10.1111/acel.14236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 05/18/2024] [Accepted: 05/20/2024] [Indexed: 06/07/2024] Open
Abstract
Sarcopenia is a significant geriatric syndrome that involves the loss of skeletal muscle mass and strength. Due to its substantial endocrine role, the metabolic microenvironment of skeletal muscle undergoes changes with age. Examining the pathogenesis of sarcopenia through focusing on metabolic dysregulation could offer insights for developing more effective intervention strategies. In this study, we analyzed the transcriptomics data to identify specific genes involved in the regulation of metabolism in skeletal muscle during the development of sarcopenia. Three machine learning algorithms were employed to screen key target genes exhibiting strong correlations with metabolism, which were further validated using RNA-sequencing data and publicly accessible datasets. Among them, the metabolic enzyme nicotinamide N-methyltransferase (NNMT) was elevated in sarcopenia, and predicted sarcopenia with an area under the curve exceeding 0.7, suggesting it as a potential therapeutic target for sarcopenia. As expected, inhibition of NNMT improved the grip strength in aging mice and alleviated age-related decline in the mass index of the quadriceps femoris muscles and whole-body lean mass index. Additionally, the NNMTi treatment increased the levels of nicotinamide adenine dinucleotide (NAD+) content, as well as PGC1α and p-AMPK expression in the muscles of both the D-galactose-treated mouse model and naturally aging mouse model. Overall, this work demonstrates NNMT as a promising target for preventing age-related decline in muscle mass and strength.
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Affiliation(s)
- Rui Liang
- Department of Geriatrics and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Qiao Xiang
- Department of Geriatrics and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Miao Dai
- Department of Geriatrics, Jiujiang No 1 People's Hospital, Jiujiang, Jiangxi, China
| | - Taiping Lin
- Department of Geriatrics and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Dongmei Xie
- Department of Geriatrics and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Quhong Song
- Department of Geriatrics and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Yu Liu
- National Clinical Research Center for Geriatrics, General Practice Ward/International Medical Center Ward, General Practice Medical Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Jirong Yue
- Department of Geriatrics and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
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13
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Mendoza-Núñez VM, Aguilar-Curiel JV, Castillo-Martínez L, Rodríguez-García WD, Vaquero-Barbosa N, Rosado-Pérez J, Arista-Ugalde TL. Relationship between aging and excess body fat with markers of inflammation, skeletal muscle mass and strength in Mexican community-dwelling people. Ir J Med Sci 2024:10.1007/s11845-024-03727-0. [PMID: 38834899 DOI: 10.1007/s11845-024-03727-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 05/26/2024] [Indexed: 06/06/2024]
Abstract
INTRODUCTION Aging is accompanied by changes in body composition, such as an increase in fat mass (FM), a decrease in skeletal muscle mass index (SMMI) and muscle strength, combined with a chronic inflammatory process (CI). OBJECTIVE Determine the relationship between age and excess body fat with markers of chronic inflammation, skeletal muscle mass and strength. METHODS A cross-sectional alitical study was carried out in a convenience sample of adults 45 to 59 years old (n = 100) and older adults 60 to 74 years old (n = 133). All participants had their body composition measured with an impedance meter. They were subsequently divided into two groups: (i) with excess fat (WEF), (ii) without excess fat (NEF), in order to relate excess fat and age with inflammation, muscle mass and strength. RESULTS NEF adults and older adults had similar values of SMMI (9.1 ± 1.5 vs. 8.8 ± 1.3, p > 0.05) and strength (28 ± 8 vs. 27 ± 8.6, p > 0.05). Likewise, WEF adults showed significantly lower values than NEF adults in the SMMI (7.9 ± 0.8 vs. 9.1 ± 1.5, p < 0.05) and strength (28 ± 8 vs. 22 ± 5, p < 0.001). Also, WEF older adults presented significantly lower values in the SMMI (15.9 ± 1.8 vs. 22.8 ± 5.1, p < 0.05) and strength (17.9 ± 4.8 vs. 27 ± 8.6, p < 0.001). CONCLUSIONS Our findings suggest that excess fat mass is a risk factor that has a significantly greater influence than aging per se on the index of skeletal muscle mass and strength.
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Affiliation(s)
- Víctor Manuel Mendoza-Núñez
- Research Unit On Gerontology, FES Zaragoza, National Autonomous University of Mexico, Guelatao # 66, Alcaldía Iztapalapa, 09230, Mexico City, Mexico.
| | - Jimena Valeria Aguilar-Curiel
- Research Unit On Gerontology, FES Zaragoza, National Autonomous University of Mexico, Guelatao # 66, Alcaldía Iztapalapa, 09230, Mexico City, Mexico
| | - Lilia Castillo-Martínez
- Clinical Nutrition Department, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | | | - Nayeli Vaquero-Barbosa
- Research Unit On Gerontology, FES Zaragoza, National Autonomous University of Mexico, Guelatao # 66, Alcaldía Iztapalapa, 09230, Mexico City, Mexico
| | - Juana Rosado-Pérez
- Research Unit On Gerontology, FES Zaragoza, National Autonomous University of Mexico, Guelatao # 66, Alcaldía Iztapalapa, 09230, Mexico City, Mexico
| | - Taide Laurita Arista-Ugalde
- Research Unit On Gerontology, FES Zaragoza, National Autonomous University of Mexico, Guelatao # 66, Alcaldía Iztapalapa, 09230, Mexico City, Mexico
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14
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Cheng JJ, Liang LJ, Lee CC. Associations of appendicular lean mass and abdominal adiposity with insulin resistance in older adults: A cross-sectional study. PLoS One 2024; 19:e0303874. [PMID: 38753649 PMCID: PMC11098336 DOI: 10.1371/journal.pone.0303874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 05/01/2024] [Indexed: 05/18/2024] Open
Abstract
Loss of lean muscle mass and accumulation of adipose tissue are changes associated with aging. Previous studies have documented various components of body composition as predictors for insulin resistance. The objective of this study was to investigate whether components of body composition-appendicular lean mass (ALM) and/or abdominal fat mass (AFM)-correlate with insulin resistance in older men and women. This was a cross-sectional study of 92 older men and women. Weight was classified according to body mass index (BMI)-normal (BMI <25), overweight (BMI 25-30), and obese (BMI >30). All body composition data was determined by dual energy x-ray absorptiometry (DEXA), and insulin resistance was assessed by the homeostatic model assessment of insulin resistance (HOMA-IR). Multivariable regression models with two-way interaction terms were employed to assess whether the associations between components of body composition and log HOMA varied by BMI categories. Adjusted regression showed that log HOMA was significantly associated with AFM (estimate ± standard error: 0.055 ± 0.026) and ALM (0.057 ± 0.029) for the overweight participants (p-values <0.05). Additionally, the adjusted associations between log HOMA and ALM were significantly greater for participants who were either obese or overweight compared to those with a normal BMI (p<0.002). Less consistent relationships were observed between insulin resistance and abdominal fat mass across BMI categories, whereas more consistent associations were observed between insulin resistance and appendicular lean mass in individuals with greater BMI. Further research is needed to clarify if lipid deposition within muscle tissue promotes muscle dysfunction and thereby increases risk for insulin resistance.
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Affiliation(s)
- Justin J. Cheng
- Geriatric Research Education and Clinical Center, Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, California, United States of America
| | - Li-Jung Liang
- Division of General Internal Medicine and Health Services Research, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
| | - Cathy C. Lee
- Geriatric Research Education and Clinical Center, Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, California, United States of America
- David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
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15
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Heitman K, Alexander MS, Faul C. Skeletal Muscle Injury in Chronic Kidney Disease-From Histologic Changes to Molecular Mechanisms and to Novel Therapies. Int J Mol Sci 2024; 25:5117. [PMID: 38791164 PMCID: PMC11121428 DOI: 10.3390/ijms25105117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 05/03/2024] [Accepted: 05/06/2024] [Indexed: 05/26/2024] Open
Abstract
Chronic kidney disease (CKD) is associated with significant reductions in lean body mass and in the mass of various tissues, including skeletal muscle, which causes fatigue and contributes to high mortality rates. In CKD, the cellular protein turnover is imbalanced, with protein degradation outweighing protein synthesis, leading to a loss of protein and cell mass, which impairs tissue function. As CKD itself, skeletal muscle wasting, or sarcopenia, can have various origins and causes, and both CKD and sarcopenia share common risk factors, such as diabetes, obesity, and age. While these pathologies together with reduced physical performance and malnutrition contribute to muscle loss, they cannot explain all features of CKD-associated sarcopenia. Metabolic acidosis, systemic inflammation, insulin resistance and the accumulation of uremic toxins have been identified as additional factors that occur in CKD and that can contribute to sarcopenia. Here, we discuss the elevation of systemic phosphate levels, also called hyperphosphatemia, and the imbalance in the endocrine regulators of phosphate metabolism as another CKD-associated pathology that can directly and indirectly harm skeletal muscle tissue. To identify causes, affected cell types, and the mechanisms of sarcopenia and thereby novel targets for therapeutic interventions, it is important to first characterize the precise pathologic changes on molecular, cellular, and histologic levels, and to do so in CKD patients as well as in animal models of CKD, which we describe here in detail. We also discuss the currently known pathomechanisms and therapeutic approaches of CKD-associated sarcopenia, as well as the effects of hyperphosphatemia and the novel drug targets it could provide to protect skeletal muscle in CKD.
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Affiliation(s)
- Kylie Heitman
- Division of Nephrology and Section of Mineral Metabolism, Department of Medicine, Heersink School of Medicine, The University of Alabama at Birmingham, Birmingham, AL 35294, USA;
| | - Matthew S. Alexander
- Division of Neurology, Department of Pediatrics, The University of Alabama at Birmingham and Children’s of Alabama, Birmingham, AL 35294, USA
- Center for Exercise Medicine, The University of Alabama at Birmingham, Birmingham, AL 35294, USA
- Department of Genetics, The University of Alabama at Birmingham, Birmingham, AL 35294, USA
- Civitan International Research Center, The University of Alabama at Birmingham, Birmingham, AL 35294, USA
- Center for Neurodegeneration and Experimental Therapeutics, The University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Christian Faul
- Division of Nephrology and Section of Mineral Metabolism, Department of Medicine, Heersink School of Medicine, The University of Alabama at Birmingham, Birmingham, AL 35294, USA;
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16
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Chen Y, Wu J. Aging-Related Sarcopenia: Metabolic Characteristics and Therapeutic Strategies. Aging Dis 2024:AD.2024.0407. [PMID: 38739945 DOI: 10.14336/ad.2024.0407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Accepted: 04/07/2024] [Indexed: 05/16/2024] Open
Abstract
The proportion of the elderly population is gradually increasing as a result of medical care advances, leading to a subsequent surge in geriatric diseases that significantly impact quality of life and pose a substantial healthcare burden. Sarcopenia, characterized by age-related decline in skeletal muscle mass and quality, affects a considerable portion of older adults, particularly the elderly, and can result in adverse outcomes such as frailty, fractures, bedridden, hospitalization, and even mortality. Skeletal muscle aging is accompanied by underlying metabolic changes. Therefore, elucidating these metabolic profiles and specific mechanisms holds promise for informing prevention and treatment strategies for sarcopenia. This review provides a comprehensive overview of the key metabolites identified in current clinical studies on sarcopenia and their potential pathophysiological alterations in metabolic activity. Besides, we examine potential therapeutic strategies for sarcopenia from a perspective focused on metabolic regulation.
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17
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Zhang Y, Zhang K, Huang S, Li W, He P. A review on associated factors and management measures for sarcopenia in type 2 diabetes mellitus. Medicine (Baltimore) 2024; 103:e37666. [PMID: 38640276 PMCID: PMC11029968 DOI: 10.1097/md.0000000000037666] [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: 01/06/2024] [Revised: 01/28/2024] [Accepted: 02/29/2024] [Indexed: 04/21/2024] Open
Abstract
Type 2 diabetes mellitus (T2DM) is a chronic metabolic disease characterized by hyperglycemia, insulin resistance, and insufficient insulin secretion. Sarcopenia, as a new complication of diabetes, is characterized by the loss of muscle mass and the progressive decline of muscle strength and function in T2DM patients, which has a serious impact on the physical and mental health of patients. Insulin resistance, mitochondrial dysfunction, and chronic inflammation are common mechanisms of diabetes and sarcopenia. Reasonable exercise training, nutrition supplement, and drug intervention may improve the quality of life of patients with diabetes combined with sarcopenia. This article reviews the relevant factors and management measures of sarcopenia in T2DM patients, in order to achieve early detection, diagnosis, and intervention.
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Affiliation(s)
- Yi Zhang
- Department of Geriatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kemeng Zhang
- Department of Geriatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Sui Huang
- Department of Geriatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wenhan Li
- Department of Geriatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ping He
- Department of Geriatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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18
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Feng Z, Zhao F, Wang Z, Tang X, Xie Y, Qiu L. The relationship between sarcopenia and metabolic dysfunction-associated fatty liver disease among the young and middle-aged populations. BMC Gastroenterol 2024; 24:111. [PMID: 38491346 PMCID: PMC10943823 DOI: 10.1186/s12876-024-03192-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 03/01/2024] [Indexed: 03/18/2024] Open
Abstract
BACKGROUND Metabolic dysfunction-associated fatty liver disease (MAFLD) has been proposed as a new term for diagnosing fatty liver disease, which is considered to be a multi-systemic disease with multiple extrahepatic manifestations, including sarcopenia. The link between sarcopenia and MAFLD remains uncertain, especially among young and middle-aged adults. Thus, we examined the relationship between MAFLD and sarcopenia in young and middle-aged individuals in this study. METHODS A total of 2214 individuals with laboratory tests, dual-energy X-ray absorptiometry and ultrasound transient elastography from NHANES 2017-2018 were selected for this study. MAFLD was diagnosed as fatty liver disease with any one of the situations: overweight/obesity, diabetes mellitus, presence of metabolic dysregulation. Sarcopenia was defined by appendicular lean mass adjusted for body mass index (BMI). Multivariable logistic regression and restricted cubic spline (RCS) model were applied to explore the relationship between MAFLD and sarcopenia, and the mediation analyses were also conducted. Moreover, subgroup analyses stratified by BMI and lifestyles were done. RESULTS The prevalence of MAFLD was 47.85%, and nearly 8.05% of participants had sarcopenia. The prevalence of sarcopenia was higher in participants with MAFLD (12.75%; 95% CI 10.18-15.31%) than in the non-MAFLD (3.73%; 95% CI 2.16-5.31%). MAFLD was significantly positively associated with sarcopenia after adjustments [OR = 2.87 (95% CI: 1.62-5.09)]. Moreover, significant positive associations were observed between liver fibrosis and sarcopenia prevalence in MAFLD patients (OR = 2.16; 95% CI 1.13-4.15). The RCS curve revealed that MAFLD was linearly associated with sarcopenia. The relationship between the MAFLD and sarcopenia were mediated by C-reactive protein (mediation proportion: 15.9%) and high-density lipoprotein cholesterol (mediation proportion: 18.9%). Subgroup analyses confirmed the association between MAFLD and sarcopenia differed in different lifestyle groups. CONCLUSIONS Both MAFLD prevalence and severity was significantly associated with sarcopenia. Thus, clinicians should advise comorbidity screening and lifestyle changes to young and middle-aged patients.
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Affiliation(s)
- Ziyan Feng
- Department of Medical Ultrasound and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 37, Guoxue Lane, Wuhou District, Chengdu, Sichuan Province, China
| | - Fanrong Zhao
- Department of gastroenterology, West China Hospital, Sichuan University, No. 37, Guoxue Lane, Wuhou District, Chengdu, Sichuan Province, China
| | - Ziyao Wang
- Department of Medical Ultrasound and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 37, Guoxue Lane, Wuhou District, Chengdu, Sichuan Province, China
| | - Xinyi Tang
- Department of Medical Ultrasound and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 37, Guoxue Lane, Wuhou District, Chengdu, Sichuan Province, China
| | - Yan Xie
- Department of gastroenterology, West China Hospital, Sichuan University, No. 37, Guoxue Lane, Wuhou District, Chengdu, Sichuan Province, China.
| | - Li Qiu
- Department of Medical Ultrasound and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 37, Guoxue Lane, Wuhou District, Chengdu, Sichuan Province, China.
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Wang L, Valencak TG, Shan T. Fat infiltration in skeletal muscle: Influential triggers and regulatory mechanism. iScience 2024; 27:109221. [PMID: 38433917 PMCID: PMC10907799 DOI: 10.1016/j.isci.2024.109221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2024] Open
Abstract
Fat infiltration in skeletal muscle (also known as myosteatosis) is now recognized as a distinct disease from sarcopenia and is directly related to declining muscle capacity. Hence, understanding the origins and regulatory mechanisms of fat infiltration is vital for maintaining skeletal muscle development and improving human health. In this article, we summarized the triggering factors such as aging, metabolic diseases and metabolic syndromes, nonmetabolic diseases, and muscle injury that all induce fat infiltration in skeletal muscle. We discussed recent advances on the cellular origins of fat infiltration and found several cell types including myogenic cells and non-myogenic cells that contribute to myosteatosis. Furthermore, we reviewed the molecular regulatory mechanism, detection methods, and intervention strategies of fat infiltration in skeletal muscle. Based on the current findings, our review will provide new insight into regulating function and lipid metabolism of skeletal muscle and treating muscle-related diseases.
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Affiliation(s)
- Liyi Wang
- College of Animal Sciences, Zhejiang University, Hangzhou, China
- Key Laboratory of Molecular Animal Nutrition (Zhejiang University), Ministry of Education, Hangzhou, China
- Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Hangzhou, China
| | | | - Tizhong Shan
- College of Animal Sciences, Zhejiang University, Hangzhou, China
- Key Laboratory of Molecular Animal Nutrition (Zhejiang University), Ministry of Education, Hangzhou, China
- Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Hangzhou, China
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20
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Feng Y, Wang L, Guo F, Zhu F, Shi J, Wang Y, Zhang Y, Chen X, Zhang L. Predictive impact of sarcopenia in advanced non-small cell lung cancer patients treated with immune checkpoint inhibitors: A retrospective study. Heliyon 2024; 10:e27282. [PMID: 38463845 PMCID: PMC10923705 DOI: 10.1016/j.heliyon.2024.e27282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 02/26/2024] [Accepted: 02/27/2024] [Indexed: 03/12/2024] Open
Abstract
Background Sarcopenia, characterised by an ongoing loss of skeletal muscle mass and reduced strength and function, is frequently observed in patients with non-small cell lung cancer (NSCLC). However, the relationship between sarcopenia and the prognosis of NSCLC treated with immune checkpoint inhibitors (ICIs) remains unclear. This aimed to assess whether sarcopenia is an independent prognostic factor for survival in patients with advanced NSCLC receiving ICIs. Methods For this retrospective cohort study, we analysed the medical records of patients attending our hospital aged 18-75 years who were newly diagnosed with stage IIIB to stage IV NSCLC, and who had received ICIs as first- or second-line therapy between May 2019 and April 2022. The skeletal muscle index (SMI) was calculated from computed tomography (CT) images and relevant clinical characteristics within 4 weeks of initiating treatment and used to diagnose sarcopenia status. The Kaplan-Meier method and log-rank test were used to calculate and compare patients' progression-free survival (PFS). Cox proportional hazard regression was used to examine the associations between sarcopenia and survival outcomes. The chi-square test was used to compare treatment response outcomes, such as the objective response rate (ORR), disease control rate (DCR), and immunotherapy-related adverse events (irAEs), between individuals with and without sarcopenia. Additionally, the Student's t-test was utilised to compare SMI values between patients by their objective response (OR) and disease control (DC). Finally, the Mann-Whitney U test was used to compare nutritional and inflammatory indicators between the sarcopenia groups. Results The study enrolled 70 patients, of whom 34 (48.6%) were diagnosed with sarcopenia. The median PFS of patients with and without sarcopenia was 7.5 vs. 13.4 months, respectively (p = 0.006). The proportional hazards regression analysis showed sarcopenia to be an independent prognostic factor for shorter PFS (hazard ratio (HR): 0.504, 95% CI: 0.265-0.962, p = 0.038). Using chi square tests, we found significant differences in the ORR (20.59% vs. 58.33%, p = 0.001) and occurrence of any irAEs (44.1% vs. 22.2%, p = 0.028) between the sarcopenia and the non-sarcopenia groups, respectively. The Student's t-test showed a significant difference in SMI between the ORR group and the non-ORR group (49.99 ± 7.00 vs. 42.98 ± 2.18 cm2/m2, p = 0.0015). While the sarcopenia group were with significantly a lower CD4+/CD8+ ratios and a higher C-reactive protein (CRP) level (p = 0.026, p = 0.011, respectively). Conclusions: This study found that sarcopenia is a significant predictor of a poor prognosis for patients with advanced NSCLC receiving ICIs. Multiple inflammatory and immune functions related to prognosis also differ by sarcopenia status.
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Affiliation(s)
- Ying Feng
- Department of Oncology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, 215000, China
- Department of Medical Oncology, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Liyu Wang
- Department of Oncology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, 215000, China
| | - Fen Guo
- Department of Oncology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, 215000, China
| | - Fan Zhu
- Department of Oncology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, 215000, China
| | - Jianming Shi
- Department of Oncology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, 215000, China
| | - Yan Wang
- Department of Medical Oncology, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Yingru Zhang
- Department of Medical Oncology, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Xiaofeng Chen
- Department of Medical Oncology, Jiangsu People's Hospital, Nanjing, 210000, China
| | - Luyao Zhang
- Department of Oncology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, 215000, China
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21
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Cisterna B, Malatesta M. Molecular and Structural Alterations of Skeletal Muscle Tissue Nuclei during Aging. Int J Mol Sci 2024; 25:1833. [PMID: 38339110 PMCID: PMC10855217 DOI: 10.3390/ijms25031833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 01/30/2024] [Accepted: 01/31/2024] [Indexed: 02/12/2024] Open
Abstract
Aging is accompanied by a progressive loss of skeletal muscle mass and strength. The mechanisms underlying this phenomenon are certainly multifactorial and still remain to be fully elucidated. Changes in the cell nucleus structure and function have been considered among the possible contributing causes. This review offers an overview of the current knowledge on skeletal muscle nuclei in aging, focusing on the impairment of nuclear pathways potentially involved in age-related muscle decline. In skeletal muscle two types of cells are present: fiber cells, constituting the contractile muscle mass and containing hundreds of myonuclei, and the satellite cells, i.e., the myogenic mononuclear stem cells occurring at the periphery of the fibers and responsible for muscle growth and repair. Research conducted on different experimental models and with different methodological approaches demonstrated that both the myonuclei and satellite cell nuclei of aged skeletal muscles undergo several structural and molecular alterations, affecting chromatin organization, gene expression, and transcriptional and post-transcriptional activities. These alterations play a key role in the impairment of muscle fiber homeostasis and regeneration, thus contributing to the age-related decrease in skeletal muscle mass and function.
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Affiliation(s)
| | - Manuela Malatesta
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Strada Le Grazie 8, 37134 Verona, Italy;
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22
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Nakamura S, Sato Y, Kobayashi T, Oya A, Fujie A, Matsumoto M, Nakamura M, Kanaji A, Miyamoto T. Bezafibrate attenuates immobilization-induced muscle atrophy in mice. Sci Rep 2024; 14:2240. [PMID: 38279013 PMCID: PMC10817916 DOI: 10.1038/s41598-024-52689-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 01/22/2024] [Indexed: 01/28/2024] Open
Abstract
Muscle atrophy due to fragility fractures or frailty worsens not only activity of daily living and healthy life expectancy, but decreases life expectancy. Although several therapeutic agents for muscle atrophy have been investigated, none is yet in clinical use. Here we report that bezafibrate, a drug used to treat hyperlipidemia, can reduce immobilization-induced muscle atrophy in mice. Specifically, we used a drug repositioning approach to screen 144 drugs already utilized clinically for their ability to inhibit serum starvation-induced elevation of Atrogin-1, a factor related to muscle atrophy, in myotubes in vitro. Two candidates were selected, and here we demonstrate that one of them, bezafibrate, significantly reduced muscle atrophy in an in vivo model of muscle atrophy induced by leg immobilization. In gastrocnemius muscle, immobilization reduced muscle weight by an average of ~ 17.2%, and bezafibrate treatment prevented ~ 40.5% of that atrophy. In vitro, bezafibrate significantly inhibited expression of the inflammatory cytokine Tnfa in lipopolysaccharide-stimulated RAW264.7 cells, a murine macrophage line. Finally, we show that expression of Tnfa and IL-1b is induced in gastrocnemius muscle in the leg immobilization model, an activity significantly antagonized by bezafibrate administration in vivo. We conclude that bezafibrate could serve as a therapeutic agent for immobilization-induced muscle atrophy.
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Affiliation(s)
- Satoshi Nakamura
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-Machi, Shinjuku-Ku, Tokyo, 160-8582, Japan
| | - Yuiko Sato
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-Machi, Shinjuku-Ku, Tokyo, 160-8582, Japan
| | - Tami Kobayashi
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-Machi, Shinjuku-Ku, Tokyo, 160-8582, Japan
| | - Akihito Oya
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-Machi, Shinjuku-Ku, Tokyo, 160-8582, Japan
| | - Astuhiro Fujie
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-Machi, Shinjuku-Ku, Tokyo, 160-8582, Japan
| | - Morio Matsumoto
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-Machi, Shinjuku-Ku, Tokyo, 160-8582, Japan
| | - Masaya Nakamura
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-Machi, Shinjuku-Ku, Tokyo, 160-8582, Japan
| | - Arihiko Kanaji
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-Machi, Shinjuku-Ku, Tokyo, 160-8582, Japan.
| | - Takeshi Miyamoto
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-Machi, Shinjuku-Ku, Tokyo, 160-8582, Japan.
- Department of Orthopedic Surgery, Kumamoto University, 1-1-1 Honjo, Chuo-Ku, Kumamoto, 860-8556, Japan.
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23
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Harada S, Gersing AS, Stohldreier Y, Dietrich O, Lechner A, Seissler J, Ferrari U, Pappa E, Hesse N. Associations of gestational diabetes and proton density fat fraction of vertebral bone marrow and paraspinal musculature in premenopausal women. Front Endocrinol (Lausanne) 2024; 14:1303126. [PMID: 38292769 PMCID: PMC10824991 DOI: 10.3389/fendo.2023.1303126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 12/19/2023] [Indexed: 02/01/2024] Open
Abstract
Background and objective Fat content in bones and muscles, quantified by magnetic resonance imaging (MRI) as a proton density fat fraction (PDFF) value, is an emerging non-invasive biomarker. PDFF has been proposed to indicate bone and metabolic health among postmenopausal women. Premenopausal women with a history of gestational diabetes (GDM) carry an increased risk of developing type 2 diabetes and an increased risk of fractures. However, no studies have investigated the associations between a history of GDM and PDFF of bone or of paraspinal musculature (PSM), composed of autochthonous muscle (AM) and psoas muscle, which are responsible for moving and stabilizing the spine. This study aims to investigate whether PDFF of vertebral bone marrow and of PSM are associated with a history of GDM in premenopausal women. Methods A total of 37 women (mean age 36.3 ± 3.8 years) who were 6 to 15 months postpartum with (n=19) and without (n=18) a history of GDM underwent whole-body 3T MRI, including a chemical shift encoding-based water-fat separation. The PDFF maps were calculated for the vertebral bodies and PSM. The cross-sectional area (CSA) of PSM was obtained. Associations between a history of GDM and PDFF were assessed using multivariable linear and logistic regression models. Results The PDFF of the vertebral bodies was significantly higher in women with a history of GDM (GDM group) than in women without (thoracic: median 41.55 (interquartile range 32.21-49.48)% vs. 31.75 (30.03-34.97)%; p=0.02, lumbar: 47.84 (39.19-57.58)% vs. 36.93 (33.36-41.31)%; p=0.02). The results remained significant after adjustment for age and body mass index (BMI) (p=0.01-0.02). The receiver operating characteristic curves showed optimal thoracic and lumbar vertebral PDFF cutoffs at 38.10% and 44.18%, respectively, to differentiate GDM (AUC 0.72 and 0.73, respectively, sensitivity 0.58, specificity 0.89). The PDFF of the AM was significantly higher in the GDM group (12.99 (12.18-15.90)% vs. 10.83 (9.39-14.71)%; p=0.04) without adjustments, while the CSA was similar between the groups (p=0.34). Conclusion A history of GDM is significantly associated with a higher PDFF of the vertebral bone marrow, independent of age and BMI. This statistical association between GDM and increased PDFF highlights vertebral bone marrow PDFF as a potential biomarker for the assessment of bone health in premenopausal women at risk of diabetes.
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Affiliation(s)
- Saori Harada
- Medizinische Klinik und Poliklinik IV, Diabetes Zentrum - Campus Innenstadt, LMU Klinikum, Ludwig-Maximilians-Universität München, Munich, Germany
- Institute for Medical Information Processing, Biometry and Epidemiology (IBE), Faculty of Medicine, LMU Munich, Pettenkofer School of Public Health, Munich, Germany
| | - Alexandra S. Gersing
- Department of Neuroradiology, LMU University Hospital, LMU Munich, Munich, Germany
| | - Yannick Stohldreier
- Department of Neuroradiology, LMU University Hospital, LMU Munich, Munich, Germany
| | - Olaf Dietrich
- Department of Radiology, LMU University Hospital, LMU Munich, Munich, Germany
| | - Andreas Lechner
- Medizinische Klinik und Poliklinik IV, Diabetes Zentrum - Campus Innenstadt, LMU Klinikum, Ludwig-Maximilians-Universität München, Munich, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Jochen Seissler
- Medizinische Klinik und Poliklinik IV, Diabetes Zentrum - Campus Innenstadt, LMU Klinikum, Ludwig-Maximilians-Universität München, Munich, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Uta Ferrari
- Medizinische Klinik und Poliklinik IV, Diabetes Zentrum - Campus Innenstadt, LMU Klinikum, Ludwig-Maximilians-Universität München, Munich, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Eleni Pappa
- Medizinische Klinik und Poliklinik IV, Diabetes Zentrum - Campus Innenstadt, LMU Klinikum, Ludwig-Maximilians-Universität München, Munich, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Nina Hesse
- Department of Radiology, LMU University Hospital, LMU Munich, Munich, Germany
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24
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Al Saedi A, Yacoub AS, Awad K, Karasik D, Brotto M, Duque G. The Interplay of Lipid Signaling in Musculoskeletal Cross Talk: Implications for Health and Disease. Methods Mol Biol 2024; 2816:1-11. [PMID: 38977583 DOI: 10.1007/978-1-0716-3902-3_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
The intricate interplay between the muscle and bone tissues is a fundamental aspect of musculoskeletal physiology. Over the past decades, emerging research has highlighted the pivotal role of lipid signaling in mediating communication between these tissues. This chapter delves into the multifaceted mechanisms through which lipids, particularly phospholipids, sphingolipids, and eicosanoids, participate in orchestrating cellular responses and metabolic pathways in both muscle and bone. Additionally, we examine the clinical implications of disrupted lipid signaling in musculoskeletal disorders, offering insights into potential therapeutic avenues. This chapter aims to shed light on the complex lipid-driven interactions between the muscle and bone tissues, paving the way for a deeper understanding of musculoskeletal health and disease.
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Affiliation(s)
- Ahmed Al Saedi
- Division of Endocrinology, Boston Children's Hospital, Boston, MA, USA.
- Department of Pediatrics, Harvard Medical School, Boston, MA, USA.
| | - Ahmed S Yacoub
- Bone-Muscle Research Center, College of Nursing and Health Innovation, The University of Texas at Arlington, Arlington, TX, USA
| | - Kamal Awad
- Bone-Muscle Research Center, College of Nursing and Health Innovation, The University of Texas at Arlington, Arlington, TX, USA
| | - David Karasik
- The Musculoskeletal Genetics Laboratory, The Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | - Marco Brotto
- Bone-Muscle Research Center, College of Nursing and Health Innovation, The University of Texas at Arlington, Arlington, TX, USA
| | - Gustavo Duque
- Research Institute of McGill University Health Center, Department of Medicine, McGill University, Québec, Canada
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25
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Huang J, Awad K, Harlow L, Toro CA, Brotto M, Cardozo CP. Effects of a Laparotomy on Targeted Lipidomics Profiles in a Mouse Model of Surgical Stress During Aging. Methods Mol Biol 2024; 2816:87-100. [PMID: 38977591 DOI: 10.1007/978-1-0716-3902-3_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
Laparotomy (EL) is one of the most common procedures performed among surgical specialties. Previous research demonstrates that surgery is associated with an increased inflammatory response. Low psoas muscle mass and quality markers are associated with increased mortality rates after emergency laparotomy. Analysis of lipid mediators in serum and muscle by using liquid chromatography-mass spectrometry (LC-MS)-based lipidomics has proven to be a sensitive and precise technique. In this chapter, we describe an LC-MS/MS protocol for the profiling and quantification of signaling lipids formed from Eicosapentaenoic Acid (EPA) and Eicosatetranoic acid (ETA) by 5, 12, or 15 lipoxynases. This protocol has been developed for and validated in serum and muscle samples in a mouse model of surgical stress caused by laparotomy.
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Affiliation(s)
- Jian Huang
- Bone-Muscle Research Center, College of Nursing and Health Innovations, Department of Graduate Nursing, The University of Texas at Arlington, Arlington, TX, USA
| | - Kamal Awad
- Bone-Muscle Research Center, College of Nursing and Health Innovations, Department of Graduate Nursing, The University of Texas at Arlington, Arlington, TX, USA
| | - Lauren Harlow
- Spinal Cord Damage Research Center, James J. Peters VA Medical Center, Bronx, NY, USA
| | - Carlos A Toro
- Spinal Cord Damage Research Center, James J. Peters VA Medical Center, Bronx, NY, USA
- Departments of Medicine and Rehabilitation Medicine and Human Performance, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Marco Brotto
- Bone-Muscle Research Center, College of Nursing and Health Innovations, Department of Graduate Nursing, The University of Texas at Arlington, Arlington, TX, USA
| | - Christopher P Cardozo
- Spinal Cord Damage Research Center, James J. Peters VA Medical Center, Bronx, NY, USA.
- Departments of Medicine and Rehabilitation Medicine and Human Performance, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
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26
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Zheng B, Zhang Y, Huang L, Shen X, Zhao F, Yan S. Early onset age increases the risk of musculoskeletal damage in patients with type 2 diabetes. Front Endocrinol (Lausanne) 2023; 14:1270674. [PMID: 38144561 PMCID: PMC10739489 DOI: 10.3389/fendo.2023.1270674] [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: 08/01/2023] [Accepted: 11/13/2023] [Indexed: 12/26/2023] Open
Abstract
Introduction It's not clear whether there are differences in musculoskeletal damage and body composition among different age groups of type 2 diabetes. Therefore, the purpose of this study is to analyze the difference between early-onset type 2 diabetes (EOT2D) and non-early-onset type 2 diabetes (NOT2D) in musculoskeletal damage. Methods A total of 964 patients with type 2 diabetes mellitus were selected by 1:1 propensity score matching, including 534 males and 430 females, with an average age of 52 ± 7 years and an average course of 10 ± 8.5 years. Bone mineral density and body composition were measured, and combined with biochemical tests, linear regression and binary logic regression were used to analyze the relationship between EOT2D, NOT2D and musculoskeletal damage. In addition, 414 patients with T2DM were selected according to whether they were hospitalized twice or not, and the median follow-up period was 44 months. COX survival analysis further elucidates the relationship between EOT2D, NOT2D and musculoskeletal damage. Results Compared with patients with non-early-onset type 2 diabetes, A/G was negatively correlated with the age of onset, and had statistical significance. EOT2D has a higher risk of sarcopenia, osteoporosis and even musculoskeletal damage. With the prolongation of the course of the disease, the risk of muscle mass and/or bone mineral density decrease in EOT2D increases. Conclusion EOT2D brings a greater risk of sarcopenia and/or osteoporosis, as well as a higher risk of reduced ASM and BMD. In addition, fat distribution may be more central.
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Affiliation(s)
- Biao Zheng
- Department of Endocrinology, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Endocrinology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Clinical Research Center for Metabolic Diseases of Fujian Province, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Key Laboratory of Glycolipid and Bone Mineral Metabolism, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Diabetes Research Institute of Fujian Province, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Metabolic Diseases Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Yongze Zhang
- Department of Endocrinology, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Endocrinology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Clinical Research Center for Metabolic Diseases of Fujian Province, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Key Laboratory of Glycolipid and Bone Mineral Metabolism, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Diabetes Research Institute of Fujian Province, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Metabolic Diseases Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Lingning Huang
- Department of Endocrinology, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Endocrinology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Clinical Research Center for Metabolic Diseases of Fujian Province, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Key Laboratory of Glycolipid and Bone Mineral Metabolism, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Diabetes Research Institute of Fujian Province, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Metabolic Diseases Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Ximei Shen
- Department of Endocrinology, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Endocrinology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Clinical Research Center for Metabolic Diseases of Fujian Province, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Key Laboratory of Glycolipid and Bone Mineral Metabolism, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Diabetes Research Institute of Fujian Province, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Metabolic Diseases Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Fengying Zhao
- Department of Endocrinology, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Endocrinology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Clinical Research Center for Metabolic Diseases of Fujian Province, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Key Laboratory of Glycolipid and Bone Mineral Metabolism, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Diabetes Research Institute of Fujian Province, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Metabolic Diseases Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Sunjie Yan
- Department of Endocrinology, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Endocrinology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Clinical Research Center for Metabolic Diseases of Fujian Province, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Key Laboratory of Glycolipid and Bone Mineral Metabolism, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Diabetes Research Institute of Fujian Province, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Metabolic Diseases Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
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Linhart C, Mehrens D, Gellert LM, Ehrnthaller C, Gleich J, Lampert C, Lerchenberger M, Böcker W, Neuerburg C, Zhang Y. Gluteal Muscle Fatty Atrophy: An Independent Risk Factor for Surgical Treatment in Elderly Patients Diagnosed with Type-III Fragility Fractures of the Pelvis. J Clin Med 2023; 12:6966. [PMID: 38002581 PMCID: PMC10671837 DOI: 10.3390/jcm12226966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 10/27/2023] [Accepted: 11/03/2023] [Indexed: 11/26/2023] Open
Abstract
BACKGROUND Gluteal muscle fatty atrophy (gMFA) might impair pelvic stability and negatively influence remobilization in patients with fragility fractures of the pelvis (FFP). This study aimed to investigate the association between gMFA and surgical indication in patients with FFP. METHODS AND MATERIALS A retrospective analysis of 429 patients (age ≥80) diagnosed with FFP was performed. gMFA of the gluteus maximus, medius, and minimus was evaluated using a standard scoring system based on computer tomography images. RESULTS No significant difference was found in gMFA between genders or among FFP types. The severity of gMFA did not correlate with age. The severity of gMFA in the gluteus medius was significantly greater than in the gluteus maximus, whereas the most profound gMFA was found in the gluteus minimus. gMFA was significantly more severe in patients who underwent an operation than in conservatively treated patients with type-III FFP, and an independent correlation to surgical indication was found using logistic regression. CONCLUSION Our findings imply that gMFA is an independent factor for surgical treatment in patients with type-III FFP. Besides focusing on the fracture pattern, the further evaluation of gMFA could be a feasible parameter for decision making toward either conservative or surgical treatment of type-III FFP.
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Affiliation(s)
- Christoph Linhart
- Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, 81377 Munich, Germany; (C.L.); (L.M.G.); (C.E.); (J.G.); (C.L.); (M.L.); (W.B.); (C.N.)
| | - Dirk Mehrens
- Department of Radiology, University Hospital, LMU Munich, 81377 Munich, Germany;
| | - Luca Maximilian Gellert
- Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, 81377 Munich, Germany; (C.L.); (L.M.G.); (C.E.); (J.G.); (C.L.); (M.L.); (W.B.); (C.N.)
| | - Christian Ehrnthaller
- Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, 81377 Munich, Germany; (C.L.); (L.M.G.); (C.E.); (J.G.); (C.L.); (M.L.); (W.B.); (C.N.)
| | - Johannes Gleich
- Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, 81377 Munich, Germany; (C.L.); (L.M.G.); (C.E.); (J.G.); (C.L.); (M.L.); (W.B.); (C.N.)
| | - Christopher Lampert
- Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, 81377 Munich, Germany; (C.L.); (L.M.G.); (C.E.); (J.G.); (C.L.); (M.L.); (W.B.); (C.N.)
| | - Maximilian Lerchenberger
- Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, 81377 Munich, Germany; (C.L.); (L.M.G.); (C.E.); (J.G.); (C.L.); (M.L.); (W.B.); (C.N.)
| | - Wolfgang Böcker
- Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, 81377 Munich, Germany; (C.L.); (L.M.G.); (C.E.); (J.G.); (C.L.); (M.L.); (W.B.); (C.N.)
| | - Carl Neuerburg
- Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, 81377 Munich, Germany; (C.L.); (L.M.G.); (C.E.); (J.G.); (C.L.); (M.L.); (W.B.); (C.N.)
| | - Yunjie Zhang
- Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, 81377 Munich, Germany; (C.L.); (L.M.G.); (C.E.); (J.G.); (C.L.); (M.L.); (W.B.); (C.N.)
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Tarantino G, Sinatti G, Citro V, Santini SJ, Balsano C. Sarcopenia, a condition shared by various diseases: can we alleviate or delay the progression? Intern Emerg Med 2023; 18:1887-1895. [PMID: 37490203 PMCID: PMC10543607 DOI: 10.1007/s11739-023-03339-z] [Citation(s) in RCA: 29] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 06/01/2023] [Indexed: 07/26/2023]
Abstract
Sarcopenia is a severe condition common to various chronic diseases and it is reckoned as a major health problem. It encompasses many different molecular mechanisms that have been for a while discovered but not definitely clarified. Although sarcopenia is a disability status that leads to serious health consequences, the scarcity of suitable animal models has curtailed research addressing this disorder. Another limitation in the field of clinical investigation of sarcopenic patients is the lack of a generally accepted definition coupled with the difficulty of adopting common diagnostic criteria. In fact, both do not permit to clarify the exact prevalence rate and consequently limit physicians to establish any kind of therapeutical approach or, when possible, to adopt preventive measures. Unfortunately, there is no standardized cure, apart from doing more physical activity and embracing a balanced diet, but newly discovered substances start being considered. In this review, authors try to give an overview addressing principal pathways of sarcopenia and offer critical features of various possible interventions.
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Affiliation(s)
- Giovanni Tarantino
- Department of Clinical Medicine and Surgery, Federico II University Medical School of Naples, Naples, Italy
| | - Gaia Sinatti
- Department of Life, Health and Environmental Sciences‑MESVA, School of Emergency‑Urgency Medicine, University of L'Aquila, 67100, L'Aquila, Italy
| | - Vincenzo Citro
- Department of General Medicine, "Umberto I" Hospital, Nocera Inferiore, SA, Italy
| | - Silvano Jr Santini
- Department of Life, Health and Environmental Sciences‑MESVA, School of Emergency‑Urgency Medicine, University of L'Aquila, 67100, L'Aquila, Italy
- Francesco Balsano Foundation, Via Giovanni Battista Martini 6, 00198, Rome, Italy
| | - Clara Balsano
- Department of Life, Health and Environmental Sciences‑MESVA, School of Emergency‑Urgency Medicine, University of L'Aquila, 67100, L'Aquila, Italy.
- Francesco Balsano Foundation, Via Giovanni Battista Martini 6, 00198, Rome, Italy.
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Tang J, Zhang H, Yin L, Zhou Q, Zhang H. The gut microbiota from maintenance hemodialysis patients with sarcopenia influences muscle function in mice. Front Cell Infect Microbiol 2023; 13:1225991. [PMID: 37771694 PMCID: PMC10523162 DOI: 10.3389/fcimb.2023.1225991] [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: 05/22/2023] [Accepted: 08/23/2023] [Indexed: 09/30/2023] Open
Abstract
Background Sarcopenia is a common complication in patients undergoing maintenance hemodialysis (MHD). Growing evidence suggests a close relationship between the gut microbiota and skeletal muscle. However, research on gut microbiota in patients with sarcopenia undergoing MHD (MS) remains scarce. To bridge this knowledge gap, we aimed to evaluate the pathogenic influence of gut microbiota in the skeletal muscle of patients with MS, to clarify the causal association between gut microbiota and skeletal muscle symptoms in patients with MS and identify the potential mechanisms underlying this causal association. Methods Fecal samples were collected from 10 patients with MS and 10 patients without MS (MNS). Bacteria were extracted from these samples for transplantation. Mice (n=42) were randomly divided into three groups and, after antibiotic treatment, fecal microbiota transplantation (FMT) was performed once a day for 3 weeks. Skeletal muscle and fecal samples from the mice were collected for 16S rRNA gene sequencing and for histological, real-time PCR, and metabolomic analyses. Results Mice colonized with gut microbiota from MS patients exhibited notable decreases in muscle function and muscle mass, compared with FMT from patients with MNS. Moreover, 16S rRNA sequencing revealed that the colonization of MS gut microbiota reduced the abundance of Akkermansia in the mouse intestines. Metabolome analysis revealed that seven metabolic pathways were notably disrupted in mice transplanted with MS microbiota. Conclusion This study established a connection between skeletal muscle and the gut microbiota of patients with MS, implying that disruption of the gut microbiota may be a driving factor in the development of skeletal muscle disorders in patients undergoing MHD. This finding lays the foundation for understanding the pathogenesis and potential treatment methods for sarcopenia in patients undergoing MHD.
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Affiliation(s)
- Jie Tang
- Lianyungang Clinical College of Nanjing Medical University, The First People’s Hospital of Lianyungang, Lianyungang, China
| | - Hailin Zhang
- Lianyungang Clinical College of Nanjing Medical University, The First People’s Hospital of Lianyungang, Lianyungang, China
| | - Lixia Yin
- Lianyungang Clinical College of Nanjing Medical University, The First People’s Hospital of Lianyungang, Lianyungang, China
| | - Qifan Zhou
- Lianyungang Clinical College of Nanjing Medical University, The First People’s Hospital of Lianyungang, Lianyungang, China
| | - Huipin Zhang
- Department of Hemopurification Center, The Affliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, China
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Shen ZL, Chen WH, Liu Z, Yu DY, Chen WZ, Zang WF, Zhang P, Yan XL, Yu Z. A novel insight into the key gene signature associated with the immune landscape in the progression of sarcopenia. Exp Gerontol 2023; 179:112244. [PMID: 37343810 DOI: 10.1016/j.exger.2023.112244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 06/04/2023] [Accepted: 06/18/2023] [Indexed: 06/23/2023]
Abstract
Sarcopenia is an age-related skeletal muscle disorder that causes falls, disability and death in the elderly, but its exact mechanism remains unknown. In this study, we merged three GEO datasets into the expression profiles of 118 samples and screened 22 differentially expressed genes (DEGs) as candidate genes. Pathway analysis demonstrated that the functional enrichment of DEGs is mainly in the cellular response to insulin stimulus, PPAR signaling pathway and other metabolism-related pathways. Then, we identified six key genes by machine learning, which were confirmed to be closely associated with sarcopenia by bioinformatics analysis. It was experimentally verified that SCD1 exhibits the most substantial alterations in the progression of sarcopenia with disturbed lipid metabolism and myosteatosis. In addition, the immune microenvironment of sarcopenia was found to be affected by these key genes, with Th17 cells down-regulated and NK cells up-regulated. Sarcopenic patients consequently presented a more significant systemic inflammatory state with higher CAR (p = 0.028) and PAR (p = 0.018). For the first time, we identified key genes in sarcopenia with high-throughput data and demonstrated that key genes can regulate the progression of sarcopenia by affecting the immune microenvironment. Among them, SCD1 may influence lipid metabolism and myosteatosis process. Screening of key genes and analyzing of immune microenvironment provide a more accurate target for treating sarcopenia.
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Affiliation(s)
- Zi-Le Shen
- Department of Gastrointestinal Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, China
| | - Wen-Hao Chen
- Department of Gastrointestinal Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, China; Department of Gastrointestinal Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Zhang Liu
- Department of Cardio-Thoracic Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, China
| | - Ding-Ye Yu
- Department of General Surgery, Huadong Hospital, Fudan University, Shanghai 200040, China
| | - Wei-Zhe Chen
- Department of Gastrointestinal Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, China
| | - Wang-Fu Zang
- Department of Cardio-Thoracic Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, China
| | - Peng Zhang
- Department of Cardio-Thoracic Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, China.
| | - Xia-Lin Yan
- Department of Colorectal Anal Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China.
| | - Zhen Yu
- Department of Gastrointestinal Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, China; Department of Gastrointestinal Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China.
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Wang W, Gu X, Cao Z, Wang X, Lei Y, Xu X, Wang S, Wu T, Bao Z. A potential correlation between adipokines, skeletal muscle function and bone mineral density in middle-aged and elderly individuals. Lipids Health Dis 2023; 22:111. [PMID: 37525169 PMCID: PMC10388529 DOI: 10.1186/s12944-023-01879-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 07/21/2023] [Indexed: 08/02/2023] Open
Abstract
BACKGROUND Evidence exists of a strong association between inflammation and a decrease in skeletal muscle function and bone mineral density (BMD); however, the specific mechanisms of these associations remain unclear. Adipokines, as key regulators of the inflammatory response, may be implicated in these processes. The objective of this study was to explore the potential correlation between adipokines, skeletal muscle function and BMD in middle-aged and elderly individuals. METHODS A comparative cross-sectional study was carried out at the Huadong Hospital Affiliated with Fudan University (Shanghai, China). A total of 460 middle-aged and elderly individuals were recruited, and 125 were enrolled in the analysis. Their biochemical indices, body composition, skeletal muscle function and BMD were measured. Bioinformatic analysis was also employed to identify potential adipokine targets linked to skeletal muscle function and BMD. To validate these targets, plasma and peripheral blood mononuclear cells (PBMCs) were harvested from these individuals and subjected to western blotting (WB) and enzyme-linked immunosorbent assay (ELISA). RESULTS Individuals in this cross-sectional study were categorized into 2 groups according to their median skeletal muscle mass (SMM) (28.8 kg for males and 20.6 kg for females). Individuals with lower SMM exhibited poorer grip strength (P = 0.017), longer 5-Times-Sit-to-Stand Test (FTSST) duration (P = 0.029), lower total hip BMD (P = 0.043), lower femoral neck BMD (P = 0.011) and higher levels of inflammatory markers in comparison with individuals with higher SMM. Bioinformatics analysis identified LEP, ADIPOQ, RBP4, and DPP4 as potential adipokine targets associated with skeletal muscle function and BMD. In vitro experiments demonstrated that individuals with decreased skeletal muscle function and BMD expressed higher levels of these adipokines. CONCLUSIONS Skeletal muscle function is positively correlated with BMD and negatively correlated with levels of inflammatory markers among middle-aged and elderly individuals. Those with lower skeletal muscle function and BMD tend to have a higher expression of LEP, ADIPOQ, RBP4 and DPP4.
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Affiliation(s)
- Wenhao Wang
- Shanghai Key Laboratory of Clinical Geriatric Medicine, Huadong Hospital Affiliated to Fudan University, Shanghai, 200040, China
- Department of Traditional Chinese Medicine, Huadong Hospital Affiliated to Fudan University, No 221 West Yan-An Road, Shanghai, 200040, China
| | - Xuchao Gu
- Shanghai Key Laboratory of Clinical Geriatric Medicine, Huadong Hospital Affiliated to Fudan University, Shanghai, 200040, China
- Department of Traditional Chinese Medicine, Huadong Hospital Affiliated to Fudan University, No 221 West Yan-An Road, Shanghai, 200040, China
| | - Ziyi Cao
- Shanghai Key Laboratory of Clinical Geriatric Medicine, Huadong Hospital Affiliated to Fudan University, Shanghai, 200040, China
- Department of Gastroenterology, Huadong Hospital Affiliated to Fudan University, Shanghai, 200040, China
| | - Xiaojun Wang
- Shanghai Key Laboratory of Clinical Geriatric Medicine, Huadong Hospital Affiliated to Fudan University, Shanghai, 200040, China
- Department of Gerontology, Huadong Hospital Affiliated to Fudan University, No 221 West Yan-An Road, Shanghai, 200040, China
| | - Yiming Lei
- Department of Traditional Chinese Medicine, Huadong Hospital Affiliated to Fudan University, No 221 West Yan-An Road, Shanghai, 200040, China
| | - Xiaoli Xu
- Department of Traditional Chinese Medicine, Huadong Hospital Affiliated to Fudan University, No 221 West Yan-An Road, Shanghai, 200040, China
| | - Shiwen Wang
- Shanghai Key Laboratory of Clinical Geriatric Medicine, Huadong Hospital Affiliated to Fudan University, Shanghai, 200040, China.
- Department of Laboratory Medicine, Huadong Hospital Affiliated to Fudan University, No 221 West Yan-An Road, Shanghai, 200040, China.
| | - Tao Wu
- Department of Traditional Chinese Medicine, Huadong Hospital Affiliated to Fudan University, No 221 West Yan-An Road, Shanghai, 200040, China.
| | - Zhijun Bao
- Shanghai Key Laboratory of Clinical Geriatric Medicine, Huadong Hospital Affiliated to Fudan University, Shanghai, 200040, China.
- Department of Gerontology, Huadong Hospital Affiliated to Fudan University, No 221 West Yan-An Road, Shanghai, 200040, China.
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Ji J, Hou Y, Li Z, Zhou Y, Xue H, Wen T, Yang T, Xue L, Tu Y, Ma T. Association between physical activity and bone mineral density in postmenopausal women: a cross-sectional study from the NHANES 2007-2018. J Orthop Surg Res 2023; 18:501. [PMID: 37454096 DOI: 10.1186/s13018-023-03976-2] [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: 04/21/2023] [Accepted: 07/03/2023] [Indexed: 07/18/2023] Open
Abstract
BACKGROUND Physical activity (PA) is generally encouraged for the treatment of osteoporosis. However, epidemiological statistics on the level of physical activity required for bone health are scarce. The purpose of this research was to analyze the association between PA and total spine bone mineral density (BMD) in postmenopausal women. METHODS The research study included postmenopausal women aged ≥ 50 from the National Health and Nutrition Examination Survey. The metabolic equivalent (MET), weekly frequency, and duration of each activity were used to calculate PA. Furthermore, the correlations between BMD and PA were investigated by multivariable weighted logistic regression. RESULTS Eventually, 1681 postmenopausal women were included, with a weighted mean age of 62.27 ± 8.18 years. This study found that performing ≥ 38MET-h/wk was linked to a lower risk of osteoporosis after controlling for several covariates. Furthermore, the subgroup analysis revealed that the connection between total spine BMD and moderate-to-vigorous PA was more obvious among postmenopausal women aged < 65 years or individuals with normal BMI (< 25 kg/m2). CONCLUSION Physical activity ranging from moderate to vigorous was linked to higher total spine BMD in postmenopausal women.
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Affiliation(s)
- Jiazhong Ji
- Department of Orthopaedics, Yangpu Hospital, School of Medicine, Tongji University, Shanghai, 200090, China
| | - Yue Hou
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Zhaoyang Li
- Department of Orthopaedics, Yangpu Hospital, School of Medicine, Tongji University, Shanghai, 200090, China
| | - Ying Zhou
- Shidong Hospital, Yangpu District Shidong Hospital affiliated to University of Shanghai for Science and Technology, 999 Shiguang Road, Shanghai, 200438, China
| | - Huaming Xue
- Department of Orthopaedics, Yangpu Hospital, School of Medicine, Tongji University, Shanghai, 200090, China
| | - Tao Wen
- Department of Orthopaedics, Yangpu Hospital, School of Medicine, Tongji University, Shanghai, 200090, China
| | - Tao Yang
- Department of Orthopaedics, Yangpu Hospital, School of Medicine, Tongji University, Shanghai, 200090, China
| | - Long Xue
- Department of Orthopaedics, Yangpu Hospital, School of Medicine, Tongji University, Shanghai, 200090, China
| | - Yihui Tu
- Department of Orthopaedics, Yangpu Hospital, School of Medicine, Tongji University, Shanghai, 200090, China.
| | - Tong Ma
- Department of Orthopaedics, Yangpu Hospital, School of Medicine, Tongji University, Shanghai, 200090, China.
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Bresgen N, Kovacs M, Lahnsteiner A, Felder TK, Rinnerthaler M. The Janus-Faced Role of Lipid Droplets in Aging: Insights from the Cellular Perspective. Biomolecules 2023; 13:912. [PMID: 37371492 PMCID: PMC10301655 DOI: 10.3390/biom13060912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 05/22/2023] [Accepted: 05/29/2023] [Indexed: 06/29/2023] Open
Abstract
It is widely accepted that nine hallmarks-including mitochondrial dysfunction, epigenetic alterations, and loss of proteostasis-exist that describe the cellular aging process. Adding to this, a well-described cell organelle in the metabolic context, namely, lipid droplets, also accumulates with increasing age, which can be regarded as a further aging-associated process. Independently of their essential role as fat stores, lipid droplets are also able to control cell integrity by mitigating lipotoxic and proteotoxic insults. As we will show in this review, numerous longevity interventions (such as mTOR inhibition) also lead to strong accumulation of lipid droplets in Saccharomyces cerevisiae, Caenorhabditis elegans, Drosophila melanogaster, and mammalian cells, just to name a few examples. In mammals, due to the variety of different cell types and tissues, the role of lipid droplets during the aging process is much more complex. Using selected diseases associated with aging, such as Alzheimer's disease, Parkinson's disease, type II diabetes, and cardiovascular disease, we show that lipid droplets are "Janus"-faced. In an early phase of the disease, lipid droplets mitigate the toxicity of lipid peroxidation and protein aggregates, but in a later phase of the disease, a strong accumulation of lipid droplets can cause problems for cells and tissues.
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Affiliation(s)
- Nikolaus Bresgen
- Department of Biosciences and Medical Biology, Paris-Lodron University Salzburg, 5020 Salzburg, Austria; (N.B.)
| | - Melanie Kovacs
- Department of Biosciences and Medical Biology, Paris-Lodron University Salzburg, 5020 Salzburg, Austria; (N.B.)
| | - Angelika Lahnsteiner
- Department of Biosciences and Medical Biology, Paris-Lodron University Salzburg, 5020 Salzburg, Austria; (N.B.)
| | - Thomas Klaus Felder
- Department of Laboratory Medicine, Paracelsus Medical University, 5020 Salzburg, Austria
| | - Mark Rinnerthaler
- Department of Biosciences and Medical Biology, Paris-Lodron University Salzburg, 5020 Salzburg, Austria; (N.B.)
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Diaz-Espinosa J, Stringer KA, Rosania GR. Clofazimine-Mediated, Age-Related Changes in Skeletal Muscle Mitochondrial Metabolites. Metabolites 2023; 13:671. [PMID: 37233713 PMCID: PMC10220805 DOI: 10.3390/metabo13050671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 05/16/2023] [Indexed: 05/27/2023] Open
Abstract
Mitochondrial health declines with age, and older patients can demonstrate dysfunction in mitochondrial-rich tissues, such as cardiac and skeletal muscle. Aged mitochondria may make older adults more susceptible to adverse drug reactions (ADRs). We assessed mitochondrial metabolic function by measuring two metabolites, l-carnitine and acetylcarnitine, to determine their effectiveness as candidate clinical biomarkers for age-related, drug-induced alterations in mitochondrial metabolism. To study age- and medication-related changes in mitochondrial metabolism, we administered the FDA-approved mitochondriotropic drug, clofazimine (CFZ), or vehicle for 8 weeks to young (4-week-old) and old (61-week-old) male C57BL/6J mice. At the end of treatment, whole blood and cardiac and skeletal muscle were analyzed for l-carnitine, acetylcarnitine, and CFZ levels; muscle function was measured via a treadmill test. No differences were found in blood or cardiac carnitine levels of CFZ-treated mice, but CFZ-treated mice displayed lost body mass and alterations in endurance and levels of skeletal muscle mitochondrial metabolites. These findings demonstrate the age-related susceptibility of the skeletal muscle to mitochondria drug toxicity. Since drug-induced alterations in mitochondrial metabolism in skeletal muscle were not reflected in the blood by l-carnitine or acetylcarnitine levels, drug-induced catabolism and changes in muscle function appear more relevant to stratifying individuals at increased risk for ADRs.
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Affiliation(s)
- Jennifer Diaz-Espinosa
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, 428 Church Street, Ann Arbor, MI 48109, USA; (J.D.-E.); (G.R.R.)
| | - Kathleen A. Stringer
- Department of Clinical Pharmacy, College of Pharmacy, University of Michigan, 428 Church Street, Ann Arbor, MI 48109, USA
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, School of Medicine, University of Michigan, Ann Arbor, MI 48109, USA
- Weil Institute for Critical Care Research and Innovation, University of Michigan, Ann Arbor, MI 48109, USA
| | - Gus R. Rosania
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, 428 Church Street, Ann Arbor, MI 48109, USA; (J.D.-E.); (G.R.R.)
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Tu J, Shi S, Liu Y, Xiu J, Zhang Y, Wu B, Liao Y, Chen K, Li G, Chen L. Dietary inflammatory potential is associated with sarcopenia in patients with hypertension: national health and nutrition examination study. Front Nutr 2023; 10:1176607. [PMID: 37252235 PMCID: PMC10213261 DOI: 10.3389/fnut.2023.1176607] [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: 02/28/2023] [Accepted: 04/21/2023] [Indexed: 05/31/2023] Open
Abstract
Background Study has shown that sarcopenia increases the risk of poor outcomes in patients with hypertension. Inflammation is one of the important reasons for the occurrence and development of sarcopenia. Regulating systemic inflammation may be a potential intervention for sarcopenia in hypertensive patients. Diet is one of the important measures to improve systemic inflammation. The dietary inflammatory index (DII) is a tool designed to assess the inflammatory potential of the diet, the association between DII and sarcopenia in hypertensive patients is unclear. Objective To explore the relationship between the DII and sarcopenia in patients with hypertension. Method Data from the National Health and Nutrition Examination Survey (NHANES) 1999-2006 and 2011-2018. A total of 7,829 participants were evaluated. Participants were divided into four groups based on the quartile of the DII: Q1 group (n = 1,958), Q2 group (n = 1,956), Q3 group (n = 1,958) and Q4 group (n = 1,957). The relationship between the DII and sarcopenia was assessed by logistic regression analysis based on the NHANES recommended weights. Result The DII was significantly associated with sarcopenia in patients with hypertension. After full adjustment, patients with higher DII (OR: 1.22, 95% CI: 1.13-1.32, p < 0.001) have a higher risk of sarcopenia. Compared with Q1 group, the group with higher DII levels had a higher risk of sarcopenia (Q2: OR: 1.23, 95%CI: 0.89-1.72, p = 0.209; Q3: OR: 1.68, 95%CI: 1.20-2.35, p = 0.003; Q4: OR: 2.43, 95%CI: 1.74-3.39, p < 0.001). Conclusion High DII is associated with an increased risk of sarcopenia in hypertensive patients. The higher the level of DII, the higher the risk of sarcopenia in hypertensive patients.
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Duque G, Kirk B, Arai H. Strong muscles lead to strong bones: The connection between osteoporosis, sarcopenia, falls and fractures. Bone 2023; 173:116789. [PMID: 37164216 DOI: 10.1016/j.bone.2023.116789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Affiliation(s)
- Gustavo Duque
- Dr. Joseph Kaufmann Chair in Geriatric Medicine, Department of Medicine, McGill University, Montreal, Quebec, Canada; Bone, Muscle & Geroscience Group, Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada.
| | - Ben Kirk
- Department of Medicine-Western Health, Melbourne Medical School, University of Melbourne, Victoria, Australia; Australian Institute for Musculoskeletal Science (AIMSS), The University of Melbourne and Western Health, Victoria, Australia
| | - Hidenori Arai
- National Center for Geriatrics and Gerontology, Obu, Japan
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Blottner D, Moriggi M, Trautmann G, Hastermann M, Capitanio D, Torretta E, Block K, Rittweger J, Limper U, Gelfi C, Salanova M. Space Omics and Tissue Response in Astronaut Skeletal Muscle after Short and Long Duration Missions. Int J Mol Sci 2023; 24:ijms24044095. [PMID: 36835504 PMCID: PMC9962627 DOI: 10.3390/ijms24044095] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 02/14/2023] [Accepted: 02/15/2023] [Indexed: 02/22/2023] Open
Abstract
The molecular mechanisms of skeletal muscle adaptation to spaceflight are as yet not fully investigated and well understood. The MUSCLE BIOPSY study analyzed pre and postflight deep calf muscle biopsies (m. soleus) obtained from five male International Space Station (ISS) astronauts. Moderate rates of myofiber atrophy were found in long-duration mission (LDM) astronauts (~180 days in space) performing routine inflight exercise as countermeasure (CM) compared to a short-duration mission (SDM) astronaut (11 days in space, little or no inflight CM) for reference control. Conventional H&E scout histology showed enlarged intramuscular connective tissue gaps between myofiber groups in LDM post vs. preflight. Immunoexpression signals of extracellular matrix (ECM) molecules, collagen 4 and 6, COL4 and 6, and perlecan were reduced while matrix-metalloproteinase, MMP2, biomarker remained unchanged in LDM post vs. preflight suggesting connective tissue remodeling. Large scale proteomics (space omics) identified two canonical protein pathways associated to muscle weakness (necroptosis, GP6 signaling/COL6) in SDM and four key pathways (Fatty acid β-oxidation, integrin-linked kinase ILK, Rho A GTPase RHO, dilated cardiomyopathy signaling) explicitly in LDM. The levels of structural ECM organization proteins COL6A1/A3, fibrillin 1, FBN1, and lumican, LUM, increased in postflight SDM vs. LDM. Proteins from tricarboxylic acid, TCA cycle, mitochondrial respiratory chain, and lipid metabolism mostly recovered in LDM vs. SDM. High levels of calcium signaling proteins, ryanodine receptor 1, RyR1, calsequestrin 1/2, CASQ1/2, annexin A2, ANXA2, and sarco(endo)plasmic reticulum Ca(2+)-ATPase (SERCA1) pump, ATP2A, were signatures of SDM, and decreased levels of oxidative stress peroxiredoxin 1, PRDX1, thioredoxin-dependent peroxide reductase, PRDX3, or superoxide dismutase [Mn] 2, SOD2, signatures of LDM postflight. Results help to better understand the spatiotemporal molecular adaptation of skeletal muscle and provide a large scale database of skeletal muscle from human spaceflight for the better design of effective CM protocols in future human deep space exploration.
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Affiliation(s)
- Dieter Blottner
- Institute of Integrative Neuroanatomy, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 10115 Berlin, Germany
- NeuroMuscular System & Signaling Group, Center of Space Medicine and Extreme Environments, 10115 Berlin, Germany
- Correspondence: ; Tel.: +49-30-450-528-347
| | - Manuela Moriggi
- Department of Biomedical Sciences for Health, University of Milan, 20133 Milan, Italy
| | - Gabor Trautmann
- Institute of Integrative Neuroanatomy, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 10115 Berlin, Germany
| | - Maria Hastermann
- Institute of Integrative Neuroanatomy, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 10115 Berlin, Germany
- NeuroMuscular System & Signaling Group, Center of Space Medicine and Extreme Environments, 10115 Berlin, Germany
| | - Daniele Capitanio
- Department of Biomedical Sciences for Health, University of Milan, 20133 Milan, Italy
| | | | - Katharina Block
- Institute of Integrative Neuroanatomy, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 10115 Berlin, Germany
| | - Joern Rittweger
- Institute of Aerospace Medicine, German Aerospace Center (DLR), 51147 Cologne, Germany
- Department of Pediatrics and Adolescence Medicine, University Hospital Cologne, 50937 Cologne, Germany
| | - Ulrich Limper
- Department of Anaesthesiology and Intensive Care Medicine, Merheim Medical Center, Witten/Herdecke University, 51109 Cologne, Germany
| | - Cecilia Gelfi
- Department of Biomedical Sciences for Health, University of Milan, 20133 Milan, Italy
- IRCCS Orthopedic Institute Galeazzi, 20161 Milan, Italy
| | - Michele Salanova
- Institute of Integrative Neuroanatomy, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 10115 Berlin, Germany
- NeuroMuscular System & Signaling Group, Center of Space Medicine and Extreme Environments, 10115 Berlin, Germany
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Xu Z, Yu Z, Li S, Tian Z, Yuan J, You F. Exploration of the core gene signatures and mechanisms between NAFLD and sarcopenia through transcriptomic level. Front Endocrinol (Lausanne) 2023; 14:1140804. [PMID: 36967768 PMCID: PMC10033966 DOI: 10.3389/fendo.2023.1140804] [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: 01/09/2023] [Accepted: 02/27/2023] [Indexed: 03/12/2023] Open
Abstract
INTRODUCTION The increased prevalence of non-alcoholic fatty liver disease (NAFLD) and sarcopenia among the elderly are facing a significant challenge to the world's health systems. Our study aims to identify the coexpressed genes in NAFLD and sarcopenia patients. METHODS We downloaded the transcriptome data of NAFLD tissue from patients, as well as muscle tissues from sarcopenia patients, from the GEO database in order to investigate the shared transcriptional regulation mechanisms between these two diseases. Then, focusing on the genes that were frequently expressed in these diseases, together with GSVA and WGCNA, we utilized a range of analysis methods to identify the main co-expressed genes in both diseases by taking intersections. We investigated these changes after learning that they mostly affected lipid metabolism and oxidative stress injury pathways. RESULTS By analyzing these genes and their interactions with transcription factors and proteins, we were able to identify 8 genes that share common patterns. From these 8 genes, we were possible to forecast potential future medicines. Our research raises the possibility of NAFLD and sarcopenia transcriptome regulatory pathways in aging populations. DISCUSSION In conclusion, a complete transcription pattern mapping was carried out in order to identify the core genes, underlying biological mechanisms, and possible therapeutic targets that regulate aging in NAFLD and sarcopenia patients. It provides novel insights and proof in favor of decreasing the increased prevalence of sarcopenia in the elderly caused by NAFLD.
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Affiliation(s)
- Ziying Xu
- School of Basic Medical Sciences, Peking University, Beijing, China
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Zihui Yu
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Shang Li
- Department of Orthopedics, General Hospital of Chinese People's Liberation Army of China (PLA), Beijing, China
- National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing, China
| | - Ziyan Tian
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Jing Yuan
- School of Basic Medical Sciences, Peking University, Beijing, China
- *Correspondence: Jing Yuan, ; Fuping You,
| | - Fuping You
- School of Basic Medical Sciences, Peking University, Beijing, China
- *Correspondence: Jing Yuan, ; Fuping You,
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Yoo MC, Won CW, Soh Y. Association of high body mass index, waist circumference, and body fat percentage with sarcopenia in older women. BMC Geriatr 2022; 22:937. [PMID: 36471279 PMCID: PMC9724283 DOI: 10.1186/s12877-022-03643-x] [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: 09/29/2022] [Accepted: 11/22/2022] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Age-related obesity and body composition changes include loss of muscle mass and increased body fat. This study aimed to investigate sex differences in the impact of sarcopenia, defined by the Asian Working Group for Sarcopenia (AWGS), on obesity in Korean older adults. METHODS In this 2-year longitudinal study, 3014 participants were excluded based on AWGS sarcopenia parameters (if any one of the sarcopenic parameter criteria was satisfied), including low handgrip strength (HGS), low appendicular skeletal muscle mass index (ASMI), and low short physical performance battery (SPPB). A total of 926 non-sarcopenic participants were recruited for the study. The obese and non-obese groups were compared according to the sarcopenia parameters. The following variables were selected for obesity analysis: body mass index (BMI), waist circumference (WC), and body fat percentage. Unadjusted and fully adjusted logistic regression analyses were performed for each variable to predict sarcopenia and sarcopenic obesity according to sex. RESULTS Among the sarcopenia parameters, reduction in ASMI was significantly lower in the obese group with high WC and percentage of body fat (PBF) in both men and women (P < 0.01). Multivariable analysis revealed that different obesity parameters were associated with AWGS criteria: women in the high BMI group presented significantly lower ASMI and sarcopenia (ASMI, OR = 0.289, 95% CI = 0.174-0.480; sarcopenia, OR = 0.152, 95% CI = 0.048-0.483). Women in the high WC group had significantly lower ASMI and sarcopenia (ASMI, OR = 0.307, 95% CI = 0.189-0.500; sarcopenia, OR = 0.262, 95% CI = 0.106-0.649). Women in the high PBF group had a lower incidence of sarcopenia (OR = 0.214, 95% CI = 0.068-0.278). CONCLUSIONS Our study identified that high BMI had a protective effect on the reduction of muscle mass in men and women. However, obesity parameters including BMI, WC, and PBF were positively correlated with a lower incidence of sarcopenia only in women. Obesity in older women may have a protective effect in reducing ASMI and the incidence of sarcopenia.
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Affiliation(s)
- Myung Chul Yoo
- grid.411231.40000 0001 0357 1464Department of Physical Medicine and Rehabilitation, Kyung Hee University Medical Center, 23 Kyungheedae-ro, Dongdaemoon-gu, Seoul, 02447 Republic of Korea ,grid.289247.20000 0001 2171 7818Department of Medicine, Graduate School, Kyung Hee University, Seoul, Republic of Korea
| | - Chang Won Won
- grid.411231.40000 0001 0357 1464Department of Family Medicine, Kyung Hee University Medical Center, 23 Kyungheedae-ro, Dongdaemoon-gu, Seoul, 02447 South Korea
| | - Yunsoo Soh
- grid.411231.40000 0001 0357 1464Department of Physical Medicine and Rehabilitation, Kyung Hee University Medical Center, 23 Kyungheedae-ro, Dongdaemoon-gu, Seoul, 02447 Republic of Korea
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