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Bekheit M, Kamera B, Colacino L, Dropmann A, Delibegovic M, Almadhoob F, Hanafy N, Bermano G, Hammad S. Mechanisms underpinning the effect of exercise on the non-alcoholic fatty liver disease: review. EXCLI JOURNAL 2025; 24:238-266. [PMID: 40071029 PMCID: PMC11895063 DOI: 10.17179/excli2024-7718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2024] [Accepted: 01/27/2025] [Indexed: 03/14/2025]
Abstract
Non-alcoholic Fatty Liver Disease (NAFLD) - whose terminology was recently replaced by metabolic liver disease (MAFLD) - is an accumulation of triglycerides in the liver of >5 % of its weight. Epidemiological studies indicated an association between NAFLD and reduced physical activity. In addition, exercise has been shown to improve NAFLD independently of weight loss. In this paper, we aim to systematically review molecular changes in sedentary experimental NAFLD models vs. those subjected to exercise. We utilized the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) checklist and standard review techniques. Studies were considered for inclusion if they addressed the primary question: the mechanisms by which exercise influenced NAFLD. This review summarized experimental evidence of improvements in NAFLD with exercise in the absence of weight loss. The pathways involved appeared to have AMPK as a common denominator. See also the graphical abstract(Fig. 1).
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Affiliation(s)
- Mohamed Bekheit
- Department of Surgery, NHS Grampian, Foresterhill Health Campus, Ashgrove Road, AB252ZN Aberdeen, UK
- Institute of Medical Sciences, Medical School, Foresterhill Health Campus, Ashgrove Road, AB252ZN Aberdeen, UK
| | - Blessed Kamera
- Department of Surgery, NHS Grampian, Foresterhill Health Campus, Ashgrove Road, AB252ZN Aberdeen, UK
- Institute of Medical Sciences, Medical School, Foresterhill Health Campus, Ashgrove Road, AB252ZN Aberdeen, UK
| | - Laura Colacino
- Department of Surgery, NHS Grampian, Foresterhill Health Campus, Ashgrove Road, AB252ZN Aberdeen, UK
- Institute of Medical Sciences, Medical School, Foresterhill Health Campus, Ashgrove Road, AB252ZN Aberdeen, UK
| | - Anne Dropmann
- Molecular Hepatology Section, Department of Medicine II, Medical Faculty Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
| | - Mirela Delibegovic
- Department of Surgery, NHS Grampian, Foresterhill Health Campus, Ashgrove Road, AB252ZN Aberdeen, UK
- Institute of Medical Sciences, Medical School, Foresterhill Health Campus, Ashgrove Road, AB252ZN Aberdeen, UK
| | - Fatema Almadhoob
- St. Helens and Knowsley Teaching Hospitals NHS Trust, Prescot, Prescot, UK
| | - Nemany Hanafy
- Group of Bionanotechnology and Molecular Cell Biology, Nanomedicine Department, Institute of Nanoscience and Nanotechnology, Kafrelsheikh University, 33516 Kafrelsheikh, Egypt
| | - Giovanna Bermano
- Centre for Obesity Research and Education (CORE), School of Pharmacy and Life Sciences, Robert Gordon University, Sir Ian Wood Building, Garthdee Road, Aberdeen AB10 7GJ, UK
| | - Seddik Hammad
- Molecular Hepatology Section, Department of Medicine II, Medical Faculty Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
- Department of Forensic Medicine and Veterinary Toxicology, Faculty of Veterinary Medicine, South Valley University, 83523 Qena, Egypt
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Zhang Y, Wang R, Liu T, Wang R. Exercise as a Therapeutic Strategy for Obesity: Central and Peripheral Mechanisms. Metabolites 2024; 14:589. [PMID: 39590824 PMCID: PMC11596326 DOI: 10.3390/metabo14110589] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2024] [Revised: 10/25/2024] [Accepted: 10/28/2024] [Indexed: 11/28/2024] Open
Abstract
Obesity is a complex, multifactorial condition involving excessive fat accumulation due to an imbalance between energy intake and expenditure, with its global prevalence steadily rising. This condition significantly increases the risk of chronic diseases, including sarcopenia, type 2 diabetes, and cardiovascular diseases, highlighting the need for effective interventions. Exercise has emerged as a potent non-pharmacological approach to combat obesity, targeting both central and peripheral mechanisms that regulate metabolism, energy expenditure, and neurological functions. In the central nervous system, exercise influences appetite, mood, and cognitive functions by modulating the reward system and regulating appetite-controlling hormones to manage energy intake. Concurrently, exercise promotes thermogenesis in adipose tissue and regulates endocrine path-ways and key metabolic organs, such as skeletal muscle and the liver, to enhance fat oxidation and support energy balance. Despite advances in understanding exercise's role in obesity, the precise interaction between the neurobiological and peripheral metabolic pathways remains underexplored, particularly in public health strategies. A better understanding of these interactions could inform more comprehensive obesity management approaches by addressing both central nervous system influences on behavior and peripheral metabolic regulation. This review synthesizes recent insights into these roles, highlighting potential therapeutic strategies targeting both systems for more effective obesity interventions.
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Affiliation(s)
- Yiyin Zhang
- School of Exercise and Health, Shanghai University of Sport, Shanghai 200438, China; (Y.Z.); (R.W.)
| | - Ruwen Wang
- School of Exercise and Health, Shanghai University of Sport, Shanghai 200438, China; (Y.Z.); (R.W.)
| | - Tiemin Liu
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai 200433, China
| | - Ru Wang
- School of Exercise and Health, Shanghai University of Sport, Shanghai 200438, China; (Y.Z.); (R.W.)
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3
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Er F, Çimen L, Suveren C, Yılmaz C, Türközkan N. Effects of Aerobic Exercise on Leukocyte-Mediated Liver Destruction in a Rat Model of Metabolic Syndrome. GAZI MEDICAL JOURNAL 2024; 35:401-406. [DOI: 10.12996/gmj.2024.4178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2025] Open
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Andani FM, Talebi-Garakani E, Ashabi G, Ganbarirad M, Hashemnia M, Sharifi M, Ghasemi M. Exercise-activated hepatic autophagy combined with silymarin is associated with suppression of apoptosis in rats subjected to dexamethasone induced- fatty liver damage. Mol Biol Rep 2024; 51:928. [PMID: 39172304 DOI: 10.1007/s11033-024-09844-4] [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: 04/17/2024] [Accepted: 08/06/2024] [Indexed: 08/23/2024]
Abstract
AIM There is a need for effective treatments for non-alcoholic fatty liver disease (NAFLD) that are economically inexpensive, and have few side effects. The present study aimed to investigate exercise training and silymarin on hepatocyte death factors in rats with liver damage. METHODS Forty-nine male Wistar rats were assigned to seven groups: sedentary control, fatty liver control (DEX), fatty liver + high-intensity interval training (HIIT), fatty liver + HIIT + silymarin (HIIT + SILY), fatty liver + continuous training (CT), fatty liver + CT + silymarin (CT + SILY), and fatty liver + silymarin (SILY). A subcutaneous injection of dexamethasone for 7 days was used to induce fatty liver in rats. Masson's trichrome and hematoxylin-eosin staining were done to evaluate hepatic injury. The hepatocyte apoptosis was determined by TUNEL assay. Real-Time PCR was conducted to evaluate the gene expressions of caspase-9, adenosine monophosphate-activated protein kinase (AMPKα1), mitofusin 2 (Mfn2), and damage-regulated autophagy modulator (DRAM). Liver tissue changes and serum levels of liver enzymes were also evaluated. RESULTS Liver apoptosis was decreased in the CT, HIIT, HIIT + SILY and CT + SILY groups compared to the DEX group. Both continuous and high-intensity training models produced beneficial alterations in liver morphology and hepatic injuries that were significant in exercise training + silymarin group. This impact was accompanied by increased AMPKα1 and DRAM gene expression and decreased caspase-9 and Mfn2 gene expression. Liver enzyme levels were high in the DEX group and treatment with silymarin significantly reduced it. CONCLUSION Silymarin supplementation combined with interval or continuous training substantially improves DEX-induced hepatic steatosis and hepatocyte injury mostly through suppressing liver apoptosis and upregulating autophagy, which may provide a novel perspective for NAFLD treatment.
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Affiliation(s)
- Fatemeh Mokhtari Andani
- Department of Physiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Elahe Talebi-Garakani
- Department of Exercise Physiology, Faculty of Sports Sciences, University of Mazandaran, Mazandaran, Iran
| | - Ghorbangol Ashabi
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahtab Ganbarirad
- Gerash Cellular and Molecular Research Center, Gerash University of Medical Sciences, Gerash, Iran
| | - Mohammad Hashemnia
- Department of Pathobiology, Faculty of Veterinary Medicine, Razi University, Kermanshah, Iran
| | - Mohammadreza Sharifi
- Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Maedeh Ghasemi
- Department of Physiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
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Ruiz-Lara G, Costa-Silva TA, Muso-Cachumba JJ, Cevallos Espinel J, Fontes MG, Garcia-Maya M, Rahman KM, Rangel-Yagui CDO, Monteiro G. Nonclinical Evaluation of Single-Mutant E. coli Asparaginases Obtained by Double-Mutant Deconvolution: Improving Toxicological, Immune and Inflammatory Responses. Int J Mol Sci 2024; 25:6008. [PMID: 38892196 PMCID: PMC11172649 DOI: 10.3390/ijms25116008] [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: 04/18/2024] [Revised: 05/23/2024] [Accepted: 05/27/2024] [Indexed: 06/21/2024] Open
Abstract
Acute lymphoblastic leukaemia is currently treated with bacterial L-asparaginase; however, its side effects raise the need for the development of improved and efficient novel enzymes. Previously, we obtained low anti-asparaginase antibody production and high serum enzyme half-life in mice treated with the P40S/S206C mutant; however, its specific activity was significantly reduced. Thus, our aim was to test single mutants, S206C and P40S, through in vitro and in vivo assays. Our results showed that the drop in specific activity was caused by P40S substitution. In addition, our single mutants were highly stable in biological environment simulation, unlike the double-mutant P40S/S206C. The in vitro cell viability assay demonstrated that mutant enzymes have a higher cytotoxic effect than WT on T-cell-derived ALL and on some solid cancer cell lines. The in vivo assays were performed in mice to identify toxicological effects, to evoke immunological responses and to study the enzymes' pharmacokinetics. From these tests, none of the enzymes was toxic; however, S206C elicited lower physiological changes and immune/allergenic responses. In relation to the pharmacokinetic profile, S206C exhibited twofold higher activity than WT and P40S two hours after injection. In conclusion, we present bioengineered E. coli asparaginases with high specific enzyme activity and fewer side effects.
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Affiliation(s)
- Grace Ruiz-Lara
- Department of Biochemical and Pharmaceutical Technology, School of Pharmaceutical Science, University of São Paulo, São Paulo 05508-000, SP, Brazil; (G.R.-L.); (J.J.M.-C.); (M.G.F.); (C.d.O.R.-Y.)
| | - Tales A. Costa-Silva
- Center for Natural and Human Sciences, Federal University of ABC, Santo André 09210-580, SP, Brazil;
| | - Jorge Javier Muso-Cachumba
- Department of Biochemical and Pharmaceutical Technology, School of Pharmaceutical Science, University of São Paulo, São Paulo 05508-000, SP, Brazil; (G.R.-L.); (J.J.M.-C.); (M.G.F.); (C.d.O.R.-Y.)
| | | | - Marina Gabriel Fontes
- Department of Biochemical and Pharmaceutical Technology, School of Pharmaceutical Science, University of São Paulo, São Paulo 05508-000, SP, Brazil; (G.R.-L.); (J.J.M.-C.); (M.G.F.); (C.d.O.R.-Y.)
| | - Mitla Garcia-Maya
- Randall Division of Cell and Molecular Biophysics, King’s College London, London SE1 1UL, UK;
| | | | - Carlota de Oliveira Rangel-Yagui
- Department of Biochemical and Pharmaceutical Technology, School of Pharmaceutical Science, University of São Paulo, São Paulo 05508-000, SP, Brazil; (G.R.-L.); (J.J.M.-C.); (M.G.F.); (C.d.O.R.-Y.)
| | - Gisele Monteiro
- Department of Biochemical and Pharmaceutical Technology, School of Pharmaceutical Science, University of São Paulo, São Paulo 05508-000, SP, Brazil; (G.R.-L.); (J.J.M.-C.); (M.G.F.); (C.d.O.R.-Y.)
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Bórquez JC, Díaz-Castro F, La Fuente FPD, Espinoza K, Figueroa AM, Martínez-Ruíz I, Hernández V, López-Soldado I, Ventura R, Domingo JC, Bosch M, Fajardo A, Sebastián D, Espinosa A, Pol A, Zorzano A, Cortés V, Hernández-Alvarez MI, Troncoso R. Mitofusin-2 induced by exercise modifies lipid droplet-mitochondria communication, promoting fatty acid oxidation in male mice with NAFLD. Metabolism 2024; 152:155765. [PMID: 38142958 DOI: 10.1016/j.metabol.2023.155765] [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: 08/29/2023] [Revised: 12/09/2023] [Accepted: 12/16/2023] [Indexed: 12/26/2023]
Abstract
BACKGROUND AND AIM The excessive accumulation of lipid droplets (LDs) is a defining characteristic of nonalcoholic fatty liver disease (NAFLD). The interaction between LDs and mitochondria is functionally important for lipid metabolism homeostasis. Exercise improves NAFLD, but it is not known if it has an effect on hepatic LD-mitochondria interactions. Here, we investigated the influence of exercise on LD-mitochondria interactions and its significance in the context of NAFLD. APPROACH AND RESULTS Mice were fed high-fat diet (HFD) or HFD-0.1 % methionine and choline-deficient diet (MCD) to emulate simple hepatic steatosis or non-alcoholic steatohepatitis, respectively. In both models, aerobic exercise decreased the size of LDs bound to mitochondria and the number of LD-mitochondria contacts. Analysis showed that the effects of exercise on HOMA-IR and liver triglyceride levels were independent of changes in body weight, and a positive correlation was observed between the number of LD-mitochondria contacts and NAFLD severity and with the lipid droplet size bound to mitochondria. Cellular fractionation studies revealed that ATP-coupled respiration and fatty acid oxidation (FAO) were greater in hepatic peridroplet mitochondria (PDM) from HFD-fed exercised mice than from equivalent sedentary mice. Finally, exercise increased FAO and mitofusin-2 abundance exclusively in PDM through a mechanism involving the curvature of mitochondrial membranes and the abundance of saturated lipids. Accordingly, hepatic mitofusin-2 ablation prevented exercise-induced FAO in PDM. CONCLUSIONS This study demonstrates that aerobic exercise has beneficial effects in murine NAFLD models by lessening the interactions between hepatic LDs and mitochondria, and by decreasing LD size, correlating with a reduced severity of NAFLD. Additionally, aerobic exercise increases FAO in PDM and this process is reliant on Mfn-2 enrichment, which modifies LD-mitochondria communication.
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Affiliation(s)
- Juan Carlos Bórquez
- Laboratorio de Investigación en Nutrición y Actividad Física (LABINAF), Instituto de Nutrición y Tecnología de los Alimentos (INTA), Universidad de Chile, Chile
| | - Francisco Díaz-Castro
- Laboratorio de Investigación en Nutrición y Actividad Física (LABINAF), Instituto de Nutrición y Tecnología de los Alimentos (INTA), Universidad de Chile, Chile
| | - Francisco Pino-de La Fuente
- Laboratorio de Investigación en Nutrición y Actividad Física (LABINAF), Instituto de Nutrición y Tecnología de los Alimentos (INTA), Universidad de Chile, Chile
| | - Karla Espinoza
- Laboratorio de Investigación en Nutrición y Actividad Física (LABINAF), Instituto de Nutrición y Tecnología de los Alimentos (INTA), Universidad de Chile, Chile
| | - Ana María Figueroa
- Department of Nutrition, Diabetes and Metabolism, Pontificia Universidad Católica de Chile, Chile
| | - Inma Martínez-Ruíz
- Departament de Bioquímica i Biomedicina Molecular, Facultat de Biologia, Universitat de Barcelona, Barcelona, Spain; Institut de Biomedicina de la Universitat de Barcelona IBUB, Barcelona, Spain
| | - Vanessa Hernández
- Institute for Research in Biomedicine (IRB Barcelona). The Barcelona Institute of Science and Technology, Barcelona (BIST), Spain
| | - Iliana López-Soldado
- Departament de Bioquímica i Biomedicina Molecular, Facultat de Biologia, Universitat de Barcelona, Barcelona, Spain; Institut de Biomedicina de la Universitat de Barcelona IBUB, Barcelona, Spain
| | - Raúl Ventura
- Departament de Bioquímica i Biomedicina Molecular, Facultat de Biologia, Universitat de Barcelona, Barcelona, Spain; Institut de Biomedicina de la Universitat de Barcelona IBUB, Barcelona, Spain
| | - Joan Carles Domingo
- Departament de Bioquímica i Biomedicina Molecular, Facultat de Biologia, Universitat de Barcelona, Barcelona, Spain
| | - Marta Bosch
- Cell Compartments and Signaling Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Alba Fajardo
- Cell Compartments and Signaling Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - David Sebastián
- Department of Biochemistry and Physiology, Faculty of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain
| | - Alejandra Espinosa
- Escuela de Medicina, Campus San Felipe, Universidad de Valparaíso, Chile; Department of Medical Technology, Faculty of Medicine, University of Chile, Chile
| | - Albert Pol
- Cell Compartments and Signaling Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Antonio Zorzano
- Departament de Bioquímica i Biomedicina Molecular, Facultat de Biologia, Universitat de Barcelona, Barcelona, Spain; Institute for Research in Biomedicine (IRB Barcelona). The Barcelona Institute of Science and Technology, Barcelona (BIST), Spain; CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Spain
| | - Víctor Cortés
- Department of Nutrition, Diabetes and Metabolism, Pontificia Universidad Católica de Chile, Chile.
| | - María Isabel Hernández-Alvarez
- Departament de Bioquímica i Biomedicina Molecular, Facultat de Biologia, Universitat de Barcelona, Barcelona, Spain; Institut de Biomedicina de la Universitat de Barcelona IBUB, Barcelona, Spain; CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Spain.
| | - Rodrigo Troncoso
- Laboratorio de Investigación en Nutrición y Actividad Física (LABINAF), Instituto de Nutrición y Tecnología de los Alimentos (INTA), Universidad de Chile, Chile; Advanced Center for Chronic Diseases (ACCDiS), Universidad de Chile, Chile; Obesity-induced Accelerated Aging (ObAGE), Universidad de Chile, Chile.
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Hughey CC, Bracy DP, Rome FI, Goelzer M, Donahue EP, Viollet B, Foretz M, Wasserman DH. Exercise training adaptations in liver glycogen and glycerolipids require hepatic AMP-activated protein kinase in mice. Am J Physiol Endocrinol Metab 2024; 326:E14-E28. [PMID: 37938177 PMCID: PMC11193517 DOI: 10.1152/ajpendo.00289.2023] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 11/06/2023] [Accepted: 11/06/2023] [Indexed: 11/09/2023]
Abstract
Regular exercise elicits adaptations in glucose and lipid metabolism that allow the body to meet energy demands of subsequent exercise bouts more effectively and mitigate metabolic diseases including fatty liver. Energy discharged during the acute exercise bouts that comprise exercise training may be a catalyst for liver adaptations. During acute exercise, liver glycogenolysis and gluconeogenesis are accelerated to supply glucose to working muscle. Lower liver energy state imposed by gluconeogenesis and related pathways activates AMP-activated protein kinase (AMPK), which conserves ATP partly by promoting lipid oxidation. This study tested the hypothesis that AMPK is necessary for liver glucose and lipid adaptations to training. Liver-specific AMPKα1α2 knockout (AMPKα1α2fl/fl+AlbCre) mice and littermate controls (AMPKα1α2fl/fl) completed sedentary and exercise training protocols. Liver nutrient fluxes were quantified at rest or during acute exercise following training. Liver metabolites and molecular regulators of metabolism were assessed. Training increased liver glycogen in AMPKα1α2fl/fl mice, but not in AMPKα1α2fl/fl+AlbCre mice. The inability to increase glycogen led to lower glycogenolysis, glucose production, and circulating glucose during acute exercise in trained AMPKα1α2fl/fl+AlbCre mice. Deletion of AMPKα1α2 attenuated training-induced declines in liver diacylglycerides. In particular, training lowered the concentration of unsaturated and elongated fatty acids comprising diacylglycerides in AMPKα1α2fl/fl mice, but not in AMPKα1α2fl/fl+AlbCre mice. Training increased liver triacylglycerides and the desaturation and elongation of fatty acids in triacylglycerides of AMPKα1α2fl/fl+AlbCre mice. These lipid responses were independent of differences in tricarboxylic acid cycle fluxes. In conclusion, AMPK is required for liver training adaptations that are critical to glucose and lipid metabolism.NEW & NOTEWORTHY This study shows that the energy sensor and transducer, AMP-activated protein kinase (AMPK), is necessary for an exercise training-induced: 1) increase in liver glycogen that is necessary for accelerated glycogenolysis during exercise, 2) decrease in liver glycerolipids independent of tricarboxylic acid (TCA) cycle flux, and 3) decline in the desaturation and elongation of fatty acids comprising liver diacylglycerides. The mechanisms defined in these studies have implications for use of regular exercise or AMPK-activators in patients with fatty liver.
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Affiliation(s)
- Curtis C Hughey
- Division of Molecular Medicine, Department of Medicine, University of Minnesota, Minneapolis, Minnesota, United States
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, Tennessee, United States
| | - Deanna P Bracy
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, Tennessee, United States
- Mouse Metabolic Phenotyping Center, Vanderbilt University, Nashville, Tennessee, United States
| | - Ferrol I Rome
- Division of Molecular Medicine, Department of Medicine, University of Minnesota, Minneapolis, Minnesota, United States
| | - Mickael Goelzer
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, Tennessee, United States
| | - E Patrick Donahue
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, Tennessee, United States
| | - Benoit Viollet
- Université Paris Cité, CNRS, Inserm, Institut Cochin, Paris, France
| | - Marc Foretz
- Université Paris Cité, CNRS, Inserm, Institut Cochin, Paris, France
| | - David H Wasserman
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, Tennessee, United States
- Mouse Metabolic Phenotyping Center, Vanderbilt University, Nashville, Tennessee, United States
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8
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Su P, Chen JG, Tang DH. Exercise against nonalcoholic fatty liver disease: Possible role and mechanism of lipophagy. Life Sci 2023; 327:121837. [PMID: 37301321 DOI: 10.1016/j.lfs.2023.121837] [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: 04/13/2023] [Revised: 05/25/2023] [Accepted: 06/05/2023] [Indexed: 06/12/2023]
Abstract
Nonalcoholic fatty liver disease (NAFLD) is one of the most common causes of chronic liver disease worldwide. NAFLD is prevalent in about 30% of people worldwide. The lack of physical activity is considered as one of the risks for NAFLD, and approximately one-third of NAFLD patients hardly engage in physical activity. It is acknowledged that exercise is one of the optimal non-pharmacological methods for preventing and treating NAFLD. Different forms of exercise such as aerobic exercise, resistance exercise and even simply physical activity in a higher level can be beneficial in reducing liver lipid accumulation and disease progression for NAFLD patients. In NAFLD patients, exercise is helpful in lowering steatosis and enhancing liver function. The mechanisms underlying the prevention and treatment of NAFLD by exercise are various and complex. Current studies on the mechanisms have focused on the pro-lipolytic, anti-inflammatory, and antioxidant and lipophagy. Promotion of lipophagy is regarded as an important mechanism for prevention and improvement of NAFLD by exercise. Recent studies have investigated the above mechanism, yet the potential mechanism has not been completely elucidated. Thus, in this review, we cover the recent advances of exercise-promoted lipophagy in NAFLD treatment and prevention. Furthermore, given the fact that exercise activates SIRT1, we discuss the possible regulatory mechanisms of lipophagy by SIRT1 during exercise. These mechanisms need to be verified by further experimental studies.
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Affiliation(s)
- Pei Su
- Department of College of P.E. and Sport, Beijing Normal University, No. 19, Xinjiekouwai St, Haidian District, Beijing 100875, People's Republic of China.
| | - Jian-Gang Chen
- Department of College of P.E. and Sport, Beijing Normal University, No. 19, Xinjiekouwai St, Haidian District, Beijing 100875, People's Republic of China.
| | - Dong-Hui Tang
- Department of College of P.E. and Sport, Beijing Normal University, No. 19, Xinjiekouwai St, Haidian District, Beijing 100875, People's Republic of China.
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Heinle JW, DiJoseph K, Sabag A, Oh S, Kimball SR, Keating S, Stine JG. Exercise Is Medicine for Nonalcoholic Fatty Liver Disease: Exploration of Putative Mechanisms. Nutrients 2023; 15:nu15112452. [PMID: 37299416 DOI: 10.3390/nu15112452] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 05/18/2023] [Accepted: 05/22/2023] [Indexed: 06/12/2023] Open
Abstract
Exercise remains a key component of nonalcoholic fatty liver disease (NAFLD) treatment. The mechanisms that underpin improvements in NAFLD remain the focus of much exploration in our attempt to better understand how exercise benefits patients with NAFLD. In this review, we summarize the available scientific literature in terms of mechanistic studies which explore the role of exercise training in modulating fatty acid metabolism, reducing hepatic inflammation, and improving liver fibrosis. This review highlights that beyond simple energy expenditure, the activation of key receptors and pathways may influence the degree of NAFLD-related improvements with some pathways being sensitive to exercise type, intensity, and volume. Importantly, each therapeutic target of exercise training in this review is also the focus of previous or ongoing drug development studies in patients with nonalcoholic steatohepatitis (NASH), and even when a regulatory-agency-approved drug comes to market, exercise will likely remain an integral component in the clinical management of patients with NAFLD and NASH.
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Affiliation(s)
- James Westley Heinle
- Division of Gastroenterology and Hepatology, Department of Medicine, Penn State Health Milton S. Hershey Medical Center, Hershey, PA 17033, USA
| | - Kara DiJoseph
- Division of Gastroenterology and Hepatology, Department of Medicine, Penn State Health Milton S. Hershey Medical Center, Hershey, PA 17033, USA
| | - Angelo Sabag
- School of Health Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia
| | - Sechang Oh
- Department of Physical Therapy, Faculty of Rehabilitation, R Professional University of Rehabilitation, Tsuchiura 300-0032, Ibaraki, Japan
| | - Scot R Kimball
- Department of Cellular and Molecular Physiology, College of Medicine, The Pennsylvania State University, Hershey, PA 17033, USA
| | - Shelley Keating
- School of Human Movement and Nutrition Sciences, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Jonathan G Stine
- Division of Gastroenterology and Hepatology, Department of Medicine, Penn State Health Milton S. Hershey Medical Center, Hershey, PA 17033, USA
- Department of Public Health Sciences, College of Medicine, The Pennsylvania State University, Hershey, PA 17033, USA
- Fatty Liver Program, Penn State Health Milton S. Hershey Medical Center, Hershey, PA 17033, USA
- Liver Center, Penn State Health Milton S. Hershey Medical Center, Hershey, PA 17033, USA
- Cancer Institute, Penn State Health Milton S. Hershey Medical Center, Hershey, PA 17033, USA
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Pauli JR, Muñoz VR, Vieira RFL, Nakandakari SCBR, Macêdo APA, de Lima RD, Antunes GC, Simabuco FM, da Silva ASR, de Moura LP, Ropelle ER, Cintra DE, Mekary RA, Zaghloul I. Exercise training restores weight gain and attenuates hepatic inflammation in a rat model of non-celiac gluten sensitivity. J Cell Biochem 2023; 124:520-532. [PMID: 36791261 DOI: 10.1002/jcb.30387] [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: 08/13/2022] [Revised: 12/02/2022] [Accepted: 02/03/2023] [Indexed: 02/17/2023]
Abstract
Gluten intolerance is associated with several disorders in the body. Although research has grown in recent years, the understanding of its impact on different tissues and the effects of physical exercise in mitigating health problems in the condition of gluten intolerance are still limited. Therefore, our objective was to test whether gliadin would affect metabolism and inflammation in liver tissue and whether aerobic physical exercise would mitigate the negative impacts of gliadin administration in rodents. Wistar rats were divided into exercised gliadin, gliadin, and control groups. Gliadin was administered by gavage from birth to 60 days of age. The rats in the exercised gliadin group performed an aerobic running exercise training protocol for 15 days. At the end of the experiments, physiological, histological, and molecular analyzes were performed in the study. Compared to the control group, the gliadin group had impaired weight gain and increased gluconeogenesis, lipogenesis, and inflammatory biomarkers in the liver. On the other hand, compared to the gliadin group, animals in the exercise-gliadin group had a recovery in body weight, improved insulin sensitivity, and a reduction in some gluconeogenesis, lipogenesis, and inflammatory biomarkers in the liver. In conclusion, our results revealed that the administration of gliadin from birth impaired weight gain and induced an increase in hepatic inflammatory cytokines, which was associated with an impairment of glycemic homeostasis in the liver, all of which were attenuated by adding aerobic exercise training in the gliadin group.
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Affiliation(s)
- José R Pauli
- Laboratory of Molecular Biology of Exercise, University of Campinas (UNICAMP), Limeira, São Paulo, Brazil.,OCRC-Obesity and Comorbidities Research Center, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Vitor R Muñoz
- Laboratory of Molecular Biology of Exercise, University of Campinas (UNICAMP), Limeira, São Paulo, Brazil
| | - Renan Fudoli Lins Vieira
- Laboratory of Molecular Biology of Exercise, University of Campinas (UNICAMP), Limeira, São Paulo, Brazil
| | - Susana C B R Nakandakari
- Laboratory of Nutritional Genomics, University of Campinas (UNICAMP), Limeira, São Paulo, Brazil
| | - Ana Paula Azevêdo Macêdo
- Laboratory of Molecular Biology of Exercise, University of Campinas (UNICAMP), Limeira, São Paulo, Brazil
| | - Robson Damasceno de Lima
- Laboratory of Molecular Biology of Exercise, University of Campinas (UNICAMP), Limeira, São Paulo, Brazil
| | - Gabriel Calheiros Antunes
- Laboratory of Molecular Biology of Exercise, University of Campinas (UNICAMP), Limeira, São Paulo, Brazil
| | - Fernando M Simabuco
- Multidisciplinary Laboratory of Food and Health (LabMAS), School of Applied Sciences (FCA), University of Campinas (UNICAMP), Limeira, São Paulo, Brazil
| | - Adelino Sanchez Ramos da Silva
- Postgraduate Program in Rehabilitation and Functional Performance, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, São Paulo, Brazil.,School of Physical Education and Sport of Ribeirão Preto, University of São Paulo (USP), Ribeirão Preto, São Paulo, Brazil
| | - Leandro P de Moura
- Laboratory of Molecular Biology of Exercise, University of Campinas (UNICAMP), Limeira, São Paulo, Brazil.,OCRC-Obesity and Comorbidities Research Center, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Eduardo R Ropelle
- Laboratory of Molecular Biology of Exercise, University of Campinas (UNICAMP), Limeira, São Paulo, Brazil.,OCRC-Obesity and Comorbidities Research Center, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Dennys E Cintra
- OCRC-Obesity and Comorbidities Research Center, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil.,Laboratory of Nutritional Genomics, University of Campinas (UNICAMP), Limeira, São Paulo, Brazil
| | - Rania A Mekary
- Massachusetts College of Pharmacy and Health Sciences (MCPHS), Boston, Massachusetts, USA.,Department of Neurosurgery, Harvard Medical School, Computational Outcomes Research Center, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Iman Zaghloul
- Massachusetts College of Pharmacy and Health Sciences (MCPHS), Boston, Massachusetts, USA
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11
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Krøyer Rasmussen M, Thøgersen R, Horsbøl Lindholm P, Bertram HC, Pilegaard H. Hepatic PGC-1α has minor regulatory effect on the transcriptome and metabolome during high fat high fructose diet and exercise. Gene 2022; 851:147039. [DOI: 10.1016/j.gene.2022.147039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 10/31/2022] [Accepted: 11/04/2022] [Indexed: 11/10/2022]
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12
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Cook JJ, Wei M, Segovia B, Cosio-Lima L, Simpson J, Taylor S, Koh Y, Kim S, Lee Y. Endurance exercise-mediated metabolic reshuffle attenuates high-caloric diet-induced non-alcoholic fatty liver disease. Ann Hepatol 2022; 27:100709. [PMID: 35489641 DOI: 10.1016/j.aohep.2022.100709] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 03/17/2022] [Accepted: 04/04/2022] [Indexed: 02/04/2023]
Abstract
INTRODUCTION AND AIM Non-alcoholic fatty liver disease (NAFLD) is one of the most common diseases in the United States. Metabolic distress (obese diabetes) is the main causative element of NAFLD. While there is no cure for NAFLD, endurance exercise (EEx) has emerged as a therapeutic strategy against NAFLD. However, mechanisms of EXE-induced hepatic protection especially in female subjects remain unidentified. Thus, the aim of the study is to examine molecular mechanisms of EXE-induced hepatic protection against diet-induced NAFLD in female mice. MATERIAL AND METHODS Nine-week-old female C57BL/6J mice were randomly divided into three groups: normal-diet control group (CON, n=11); high-fat diet/high-fructose group (HFD/HF, n=11); and HFD/HF+EEx group (HFD/HF+EEx, n=11). The mice assigned to HFD/HF and HFD/HF+EEx groups were fed with HFD/HF for 12 weeks, after which the mice assigned to the EEx group began treadmill exercise for 12 weeks, with HFD/HF continued. RESULTS EEx attenuated hepatic steatosis, reduced de novo lipogenesis (reduction in ATP-Citrate- Lyase and diacylglycerol-O-acyltransferase 1), and enhanced mitochondrial biogenesis and fatty-acid activation (oxidative phosphorylation enzymes and Acyl-CoA synthetase1). Also, EEx prevented upregulation of gluconeogenic proteins (glyceraldehyde-3-phosphate dehydrogenase, glucose-6-phosphatase, and phosphoenolpyruvate-carboxykinase1), premature senescence (suppression of p53, p22, and p16, tumor-necrosis-factor-α, and interleukin-1β, and oxidative stress), and autophagy deficiency. Furthermore, EXE reversed apoptosis arrest (cleaved cysteine-dependent-aspartate-directed protease3 and Poly-(ADP-ribose)-polymerase1). CONCLUSION EEx-mediated reparations of metabolic and redox imbalance (utilization of pentose phosphate pathway), and autophagy deficiency caused by metabolic distress critically contribute to preventing/delaying severe progression of NAFLD. Also, EEx-induced anti-senescence and cell turnover are crucial protective mechanisms against NAFLD.
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Affiliation(s)
- Joshua J Cook
- Molecular and Cellular Exercise Physiology Laboratory, Department of Movement Sciences and Health, Usha Kundu, MD College of Health, University of West Florida, Pensacola, FL 32514, USA
| | - Madeline Wei
- Molecular and Cellular Exercise Physiology Laboratory, Department of Movement Sciences and Health, Usha Kundu, MD College of Health, University of West Florida, Pensacola, FL 32514, USA
| | - Benny Segovia
- Molecular and Cellular Exercise Physiology Laboratory, Department of Movement Sciences and Health, Usha Kundu, MD College of Health, University of West Florida, Pensacola, FL 32514, USA
| | - Ludmila Cosio-Lima
- Molecular and Cellular Exercise Physiology Laboratory, Department of Movement Sciences and Health, Usha Kundu, MD College of Health, University of West Florida, Pensacola, FL 32514, USA
| | - Jeffrey Simpson
- Molecular and Cellular Exercise Physiology Laboratory, Department of Movement Sciences and Health, Usha Kundu, MD College of Health, University of West Florida, Pensacola, FL 32514, USA
| | - Scott Taylor
- Department of Biology, Hal Marcus College of Science and Engineering, University of West Florida, Pensacola, FL 32514, USA
| | - Yunsuk Koh
- Department of Health, Human Performance and Recreation, Robbins College of Human Sciences, Baylor University, Waco, TX 76798, USA
| | - Sangho Kim
- Department of Sport Science, College of Culture and Sports, School of Global Sport Studies, Korea University, Sejong 30019, South Korea
| | - Youngil Lee
- Molecular and Cellular Exercise Physiology Laboratory, Department of Movement Sciences and Health, Usha Kundu, MD College of Health, University of West Florida, Pensacola, FL 32514, USA.
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13
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Rosa-Caldwell ME, Poole KE, Seija A, Harris MP, Greene NP, Wooten JS. Exercise during weight-loss improves hepatic mitophagy. SPORTS MEDICINE AND HEALTH SCIENCE 2022; 4:183-189. [PMID: 36090917 PMCID: PMC9453692 DOI: 10.1016/j.smhs.2022.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/01/2022] [Accepted: 04/06/2022] [Indexed: 11/02/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) has recently become a public health concern concurrent with the obesity crisis. Previous work has shown aberrant mitochondrial content/quality and autophagy in models of NAFLD, whereas exercise is known to improve these derangements. The purpose of this study was to examine the effect of different weight-loss modalities on hepatic mitochondrial content, autophagy and mitophagy in NAFLD. Forty-eight male C57BL/6J mice were divided into 1 of 4 groups: low fat diet (LFD, 10% fat, 18 weeks), high fat diet (HFD, 60% fat diet, 18 weeks), weight-loss by diet (D, 60% fat diet for 10 weeks then 10% fat diet for 8 weeks) or weight-loss by diet and physical activity (D/PA, 60% fat diet for 10 weeks, then 10% fat diet plus a running wheel for 8 weeks). Immunoblot data were analyzed by one-way analysis of variance (ANOVA) with significance denoted at p < 0.05. COX-IV protein contents were approximately 50% less in HFD compared to LFD. D/PA had 50% more BNIP3 compared to HFD. PINK1 content was 40% higher in D and D/PA compared to LFD. P-PARKIN/PARKIN levels were 40% lower in HFD, D, and D/PA compared to LFD. Whereas p-UbSer65 was 3-fold higher in HFD. LC3II/I ratio was 50% greater in HFD and D/PA, yet p62 protein content was 2.5 fold higher in HFD. High-fat diet causes disruptions in markers of mitochondrial quality control. Physical activity combined with diet were able to ameliorate these derangements and seemingly improve hepatic mitochondrial quality above control values.
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14
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Pino-de la Fuente F, Bórquez JC, Díaz-Castro F, Espinosa A, Chiong M, Troncoso R. Exercise regulation of hepatic lipid droplet metabolism. Life Sci 2022; 298:120522. [PMID: 35367244 DOI: 10.1016/j.lfs.2022.120522] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 03/16/2022] [Accepted: 03/27/2022] [Indexed: 01/02/2023]
Abstract
Lipid droplets (LD) are not just lipid stores. They are now recognized as highly dynamic organelles, having a life cycle that includes biogenesis, growth, steady-state, transport, and catabolism. Importantly, LD exhibit different features in terms of size, number, lipid composition, proteins, and interaction with other organelles, and all these features exert an impact on cellular homeostasis. The imbalance of LD function causes non-alcoholic fatty liver disease (NAFLD). Studies show that exercise attenuates NAFLD by decreasing LD content; however, reports show metabolic benefits without changes in LD amount (intrahepatic triglyceride levels) in NAFLD. Due to the multiple effects of exercise in LD features, we think that these metabolic benefits occur through changes in LD features in NAFLD, rather than only the reduction in content. Exercise increases energy mobilization and utilization from storages such as LD, and is one of the non-pharmacological treatments against NAFLD. Therefore, exercise modification of LD could be a target for NAFLD treatment. Here, we review the most up-to-date literature on this topic, and focus on recent findings showing that LD features could play an important role in the severity of NAFLD.
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Affiliation(s)
- Francisco Pino-de la Fuente
- Laboratorio de Investigación en Nutrición y Actividad Física (LABINAF), Instituto de Nutrición y Tecnología de los Alimentos (INTA), Universidad de Chile, Santiago, Chile; Departamento de Tecnología Médica, Facultad de Medicina, Universidad de Chile, Chile; Advanced Center for Chronic Diseases (ACCDiS), Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
| | - Juan Carlos Bórquez
- Laboratorio de Investigación en Nutrición y Actividad Física (LABINAF), Instituto de Nutrición y Tecnología de los Alimentos (INTA), Universidad de Chile, Santiago, Chile
| | - Francisco Díaz-Castro
- Laboratorio de Investigación en Nutrición y Actividad Física (LABINAF), Instituto de Nutrición y Tecnología de los Alimentos (INTA), Universidad de Chile, Santiago, Chile
| | - Alejandra Espinosa
- Departamento de Tecnología Médica, Facultad de Medicina, Universidad de Chile, Chile
| | - Mario Chiong
- Advanced Center for Chronic Diseases (ACCDiS), Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
| | - Rodrigo Troncoso
- Laboratorio de Investigación en Nutrición y Actividad Física (LABINAF), Instituto de Nutrición y Tecnología de los Alimentos (INTA), Universidad de Chile, Santiago, Chile; Advanced Center for Chronic Diseases (ACCDiS), Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile.
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15
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Imaging the Effects of Whole-Body Vibration on the Progression of Hepatic Steatosis by Quantitative Ultrasound Based on Backscatter Envelope Statistics. Pharmaceutics 2022; 14:pharmaceutics14040741. [PMID: 35456575 PMCID: PMC9028833 DOI: 10.3390/pharmaceutics14040741] [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: 03/02/2022] [Revised: 03/27/2022] [Accepted: 03/27/2022] [Indexed: 12/10/2022] Open
Abstract
Hepatic steatosis causes nonalcoholic fatty liver disease. Whole-body vibration (WBV) has been recommended to allow patients who have difficulty engaging in exercise to improve the grade of hepatic steatosis. This study proposed using ultrasound parametric imaging of the homodyned K (HK) distribution to evaluate the effectiveness of WBV treatments in alleviating hepatic steatosis. Sixty mice were assigned to control (n = 6), sedentary (n = 18), WBV (n = 18), and exercise (swimming) (n = 18) groups. Mice were fed a high-fat diet to induce hepatic steatosis and underwent the intervention for 4, 8, and 16 weeks. Ultrasound scanning was performed in vivo on each mouse after the interventions for ultrasound HK imaging using the parameter μ (the scatterer clustering parameter). Histopathological examinations and the intraperitoneal glucose tolerance test were carried out for comparisons with ultrasound findings. At the 16th week, WBV and exercise groups demonstrated lower body weights, glucose concentrations, histopathological scores (steatosis and steatohepatitis), and μ parameters than the control group (p < 0.05). The steatosis grade was significantly lower in the WBV group (mild) than in the exercise group (moderate) (p < 0.05), corresponding to a reduction in the μ parameter. A further analysis revealed that the correlation between the steatosis grade and the μ parameter was 0.84 (p < 0.05). From this animal study we conclude that WBV may be more effective than exercise in reducing the progression of hepatic steatosis, and ultrasound HK parametric imaging is an appropriate method for evaluating WBV’s effect on hepatic steatosis.
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16
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Axsom JE, Schmidt HD, Matura LA, Libonati JR. The Influence of Epigenetic Modifications on Metabolic Changes in White Adipose Tissue and Liver and Their Potential Impact in Exercise. Front Physiol 2021; 12:686270. [PMID: 34512374 PMCID: PMC8427663 DOI: 10.3389/fphys.2021.686270] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 07/30/2021] [Indexed: 12/27/2022] Open
Abstract
Background: Epigenetic marks are responsive to a wide variety of environmental stimuli and serve as important mediators for gene transcription. A number of chromatin modifying enzymes orchestrate epigenetic responses to environmental stimuli, with a growing body of research examining how changes in metabolic substrates or co-factors alter epigenetic modifications. Scope of Review: Here, we provide a systematic review of existing evidence of metabolism-related epigenetic changes in white adipose tissue (WAT) and the liver and generate secondary hypotheses on how exercise may impact metabolism-related epigenetic marks in these tissues. Major Conclusions: Epigenetic changes contribute to the complex transcriptional responses associated with WAT lipolysis, hepatic de novo lipogenesis, and hepatic gluconeogenesis. While these metabolic responses may hypothetically be altered with acute and chronic exercise, direct testing is needed.
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Affiliation(s)
- Jessie E Axsom
- Department of Biobehavioral Health Sciences, School of Nursing, University of Pennsylvania, Philadelphia, PA, United States.,Penn Cardiovascular Institute, Smilow Translational Research Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Heath D Schmidt
- Department of Biobehavioral Health Sciences, School of Nursing, University of Pennsylvania, Philadelphia, PA, United States.,Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Lea Ann Matura
- Department of Biobehavioral Health Sciences, School of Nursing, University of Pennsylvania, Philadelphia, PA, United States
| | - Joseph R Libonati
- Department of Biobehavioral Health Sciences, School of Nursing, University of Pennsylvania, Philadelphia, PA, United States
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17
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Su H, Liu D, Shao J, Li Y, Wang X, Gao Q. Aging Liver: Can Exercise be a Better Way to Delay the Process than Nutritional and Pharmacological Intervention? Focus on Lipid Metabolism. Curr Pharm Des 2021; 26:4982-4991. [PMID: 32503400 DOI: 10.2174/1381612826666200605111232] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 05/18/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND & AIMS Nowadays, the world is facing a common problem that the population aging process is accelerating. How to delay metabolic disorders in middle-aged and elderly people, has become a hot scientific and social issue worthy of attention. The liver plays an important role in lipid metabolism, and abnormal lipid metabolism may lead to liver diseases. Exercise is an easily controlled and implemented intervention, which has attracted extensive attention in improving the health of liver lipid metabolism in the elderly. This article reviewed the body aging process, changes of lipid metabolism in the aging liver, and the mechanism and effects of different interventions on lipid metabolism in the aging liver, especially focusing on exercise intervention. METHODS A literature search was performed using PubMed-NCBI, EBSCO Host and Web of Science, and also a report from WHO. In total, 143 studies were included from 1986 to 15 February 2020. CONCLUSION Nutritional and pharmacological interventions can improve liver disorders, and nutritional interventions are less risky relatively. Exercise intervention can prevent and improve age-related liver disease, especially the best high-intensity interval training intensity and duration is expected to be one of the research directions in the future.
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Affiliation(s)
- Hao Su
- The School of Sport Science, Beijing Sport University, Beijing, China
| | - Dongsen Liu
- The School of Sports Medicine and Rehabilitation, Beijing Sport University, Beijing, China
| | - Jia Shao
- The Graduate School, Beijing Sport University, Beijing, China
| | - Yinuo Li
- The Graduate School, Beijing Sport University, Beijing, China
| | - Xiaoxia Wang
- The School of Physical Education and Art Education, Beijing Technology and Business University, Beijing, China
| | - Qi Gao
- The School of Sports Medicine and Rehabilitation, Beijing Sport University, Beijing, China
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18
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Abstract
Mammals undergo regular cycles of fasting and feeding that engage dynamic transcriptional responses in metabolic tissues. Here we review advances in our understanding of the gene regulatory networks that contribute to hepatic responses to fasting and feeding. The advent of sequencing and -omics techniques have begun to facilitate a holistic understanding of the transcriptional landscape and its plasticity. We highlight transcription factors, their cofactors, and the pathways that they impact. We also discuss physiological factors that impinge on these responses, including circadian rhythms and sex differences. Finally, we review how dietary modifications modulate hepatic gene expression programs.
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Affiliation(s)
- Lara Bideyan
- Department of Pathology and Laboratory Medicine, and Molecular Biology Institute, University of California at Los Angeles, Los Angeles, California 90095, USA.,Department of Biological Chemistry, and Molecular Biology Institute, University of California at Los Angeles, Los Angeles, California 90095, USA
| | - Rohith Nagari
- Department of Pathology and Laboratory Medicine, and Molecular Biology Institute, University of California at Los Angeles, Los Angeles, California 90095, USA.,Department of Biological Chemistry, and Molecular Biology Institute, University of California at Los Angeles, Los Angeles, California 90095, USA
| | - Peter Tontonoz
- Department of Pathology and Laboratory Medicine, and Molecular Biology Institute, University of California at Los Angeles, Los Angeles, California 90095, USA.,Department of Biological Chemistry, and Molecular Biology Institute, University of California at Los Angeles, Los Angeles, California 90095, USA
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19
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Effects of Long-Term DHA Supplementation and Physical Exercise on Non-Alcoholic Fatty Liver Development in Obese Aged Female Mice. Nutrients 2021; 13:nu13020501. [PMID: 33546405 PMCID: PMC7913512 DOI: 10.3390/nu13020501] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/22/2021] [Accepted: 01/26/2021] [Indexed: 02/06/2023] Open
Abstract
Obesity and aging are associated to non-alcoholic fatty liver disease (NAFLD) development. Here, we investigate whether long-term feeding with a docosahexaenoic acid (DHA)-enriched diet and aerobic exercise, alone or in combination, are effective in ameliorating NAFLD in aged obese mice. Two-month-old female C57BL/6J mice received control or high fat diet (HFD) for 4 months. Then, the diet-induced obese (DIO) mice were distributed into four groups: DIO, DIO + DHA (15% dietary lipids replaced by a DHA-rich concentrate), DIO + EX (treadmill running), and DIO + DHA + EX up to 18 months. The DHA-rich diet reduced liver steatosis in DIO mice, decreasing lipogenic genes (Dgat2, Scd1, Srebp1c), and upregulated lipid catabolism genes (Hsl/Acox) expression. A similar pattern was observed in the DIO + EX group. The combination of DHA + exercise potentiated an increase in Cpt1a and Ppara genes, and AMPK activation, key regulators of fatty acid oxidation. Exercise, alone or in combination with DHA, significantly reversed the induction of proinflammatory genes (Mcp1, Il6, Tnfα, Tlr4) in DIO mice. DHA supplementation was effective in preventing the alterations induced by the HFD in endoplasmic reticulum stress-related genes (Ern1/Xbp1) and autophagy markers (LC3II/I ratio, p62, Atg7). In summary, long-term DHA supplementation and/or exercise could be helpful to delay NAFLD progression during aging in obesity.
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20
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Kwon I, Song W, Jang Y, Choi MD, Vinci DM, Lee Y. Elevation of hepatic autophagy and antioxidative capacity by endurance exercise is associated with suppression of apoptosis in mice. Ann Hepatol 2021; 19:69-78. [PMID: 31611063 DOI: 10.1016/j.aohep.2019.08.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 08/16/2019] [Accepted: 08/18/2019] [Indexed: 02/04/2023]
Abstract
INTRODUCTION AND OBJECTIVES Endurance exercise (EXE) has emerged as a potent inducer of autophagy essential in maintaining cellular homeostasis in various tissues; however, the functional significance and molecular mechanisms of EXE-induced autophagy in the liver remain unclear. Thus, the aim of this study is to examine the signaling nexus of hepatic autophagy pathways occurring during acute EXE and a potential crosstalk between autophagy and apoptosis. MATERIALS AND METHODS C57BL/6 male mice were randomly assigned to sedentary control group (CON, n=9) and endurance exercise (EXE, n=9). Mice assigned to EXE were gradually acclimated to treadmill running and ran for 60min per day for five consecutive days. RESULTS Our data showed that EXE promoted hepatic autophagy via activation of canonical autophagy signaling pathways via mediating microtubule-associated protein B-light chain 3 II (LC3-II), autophagy protein 7 (ATG7), phosphorylated adenosine mono phosphate-activated protein kinase (p-AMPK), CATHEPSIN L, lysosome-associated membrane protein 2 (LAMP2), and a reduction in p62. Interestingly, this autophagy promotion concurred with enhanced anabolic activation via AKT-mammalian target of rapamycin (mTOR)-p70S6K signaling cascade and enhanced antioxidant capacity such as copper zinc superoxide dismutase (CuZnSOD), glutathione peroxidase (GPX), and peroxiredoxin 3 (PRX3), known to be as antagonists of autophagy. Moreover, exercise-induced autophagy was inversely related to apoptosis in the liver. CONCLUSIONS Our findings indicate that improved autophagy and antioxidant capacity, and potentiated anabolic signaling may be a potent non-pharmacological therapeutic strategy against diverse liver diseases.
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Affiliation(s)
- Insu Kwon
- Molecular and Cellular Exercise Physiology Laboratory, Department of Movement Sciences and Health, Usha Kundu, MD College of Health, University of West Florida, Pensacola, FLUSA
| | - Wankeun Song
- Molecular and Cellular Exercise Physiology Laboratory, Department of Movement Sciences and Health, Usha Kundu, MD College of Health, University of West Florida, Pensacola, FLUSA
| | - Yongchul Jang
- Molecular and Cellular Exercise Physiology Laboratory, Department of Movement Sciences and Health, Usha Kundu, MD College of Health, University of West Florida, Pensacola, FLUSA
| | - Myung D Choi
- Exercise Science, School of Health Sciences, Oakland University, Rochester, MIUSA
| | - Debra M Vinci
- Molecular and Cellular Exercise Physiology Laboratory, Department of Movement Sciences and Health, Usha Kundu, MD College of Health, University of West Florida, Pensacola, FLUSA
| | - Youngil Lee
- Molecular and Cellular Exercise Physiology Laboratory, Department of Movement Sciences and Health, Usha Kundu, MD College of Health, University of West Florida, Pensacola, FLUSA.
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21
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Juszczak F, Vlassembrouck M, Botton O, Zwakhals T, Decarnoncle M, Tassin A, Caron N, Declèves AE. Delayed Exercise Training Improves Obesity-Induced Chronic Kidney Disease by Activating AMPK Pathway in High-Fat Diet-Fed Mice. Int J Mol Sci 2020; 22:ijms22010350. [PMID: 33396267 PMCID: PMC7795787 DOI: 10.3390/ijms22010350] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 12/22/2020] [Accepted: 12/26/2020] [Indexed: 12/15/2022] Open
Abstract
Exercise training is now recognized as an interesting therapeutic strategy in managing obesity and its related disorders. However, there is still a lack of knowledge about its impact on obesity-induced chronic kidney disease (CKD). Here, we investigated the effects of a delayed protocol of endurance exercise training (EET) as well as the underlying mechanism in obese mice presenting CKD. Mice fed a high-fat diet (HFD) or a low-fat diet (LFD) for 12 weeks were subsequently submitted to an 8-weeks EET protocol. Delayed treatment with EET in obese mice prevented body weight gain associated with a reduced calorie intake. EET intervention counteracted obesity-related disorders including glucose intolerance, insulin resistance, dyslipidaemia and hepatic steatosis. Moreover, our data demonstrated for the first time the beneficial effects of EET on obesity-induced CKD as evidenced by an improvement of obesity-related glomerulopathy, tubulo-interstitial fibrosis, inflammation and oxidative stress. EET also prevented renal lipid depositions in the proximal tubule. These results were associated with an improvement of the AMPK pathway by EET in renal tissue. AMPK-mediated phosphorylation of ACC and ULK-1 were particularly enhanced leading to increased fatty acid oxidation and autophagy improvement with EET in obese mice.
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Affiliation(s)
- Florian Juszczak
- Laboratory of Metabolic and Molecular Biochemistry, Faculty of Medicine and Pharmacy, Research Institute for Health Sciences and Technology, University of Mons (UMONS), 7000 Mons, Belgium; (M.V.); (T.Z.); (M.D.); (A.-E.D.)
- Molecular Physiology Research Unit (URPhyM), Namur Research Institute for Life Sciences (NARILIS), University of Namur (UNamur), 5000 Namur, Belgium; (O.B.); (N.C.)
- Correspondence: ; Tel.: +32-65373580
| | - Maud Vlassembrouck
- Laboratory of Metabolic and Molecular Biochemistry, Faculty of Medicine and Pharmacy, Research Institute for Health Sciences and Technology, University of Mons (UMONS), 7000 Mons, Belgium; (M.V.); (T.Z.); (M.D.); (A.-E.D.)
| | - Olivia Botton
- Molecular Physiology Research Unit (URPhyM), Namur Research Institute for Life Sciences (NARILIS), University of Namur (UNamur), 5000 Namur, Belgium; (O.B.); (N.C.)
| | - Thomas Zwakhals
- Laboratory of Metabolic and Molecular Biochemistry, Faculty of Medicine and Pharmacy, Research Institute for Health Sciences and Technology, University of Mons (UMONS), 7000 Mons, Belgium; (M.V.); (T.Z.); (M.D.); (A.-E.D.)
| | - Morgane Decarnoncle
- Laboratory of Metabolic and Molecular Biochemistry, Faculty of Medicine and Pharmacy, Research Institute for Health Sciences and Technology, University of Mons (UMONS), 7000 Mons, Belgium; (M.V.); (T.Z.); (M.D.); (A.-E.D.)
| | - Alexandra Tassin
- Laboratory of Respiratory Physiology, Pathophysiology and Rehabilitation, Faculty of Medicine and Pharmacy, Research Institute for Health Sciences and Technology, University of Mons (UMONS), 7000 Mons, Belgium;
| | - Nathalie Caron
- Molecular Physiology Research Unit (URPhyM), Namur Research Institute for Life Sciences (NARILIS), University of Namur (UNamur), 5000 Namur, Belgium; (O.B.); (N.C.)
| | - Anne-Emilie Declèves
- Laboratory of Metabolic and Molecular Biochemistry, Faculty of Medicine and Pharmacy, Research Institute for Health Sciences and Technology, University of Mons (UMONS), 7000 Mons, Belgium; (M.V.); (T.Z.); (M.D.); (A.-E.D.)
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22
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Diniz TA, de Lima Junior EA, Teixeira AA, Biondo LA, da Rocha LAF, Valadão IC, Silveira LS, Cabral-Santos C, de Souza CO, Rosa Neto JC. Aerobic training improves NAFLD markers and insulin resistance through AMPK-PPAR-α signaling in obese mice. Life Sci 2020; 266:118868. [PMID: 33310034 DOI: 10.1016/j.lfs.2020.118868] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 11/28/2020] [Accepted: 12/01/2020] [Indexed: 12/24/2022]
Abstract
Liver steatosis is one of the main drivers for the development of whole-body insulin resistance. Conversely, aerobic training (AT) has been suggested as non-pharmacological tool to improve liver steatosis, however, the underlying molecular mechanism remains unclear. Therefore, the aim of this study was to analyze the effect of 8-weeks AT in non-alcoholic liver disease (NAFLD) outcomes in obese mice. Male C57BL/6 J wild type (WT) were fed with standard (SD) or high-fat diet (HFD) for 12-weeks. Another group fed with HFD underwent 8-weeks of AT (60% of maximum velocity), initiated at the 5th week of experimental protocol. We measured metabolic, body composition parameters, protein and gene expression inflammatory and metabolic mediators. We found that AT attenuates the weight gain, but not body fat accumulation. AT improved triacylglycerol and non-esterified fatty acid plasma concentrations, and also whole-body insulin resistance. Regarding NAFLD, AT decreased the progression of macrovesicular steatosis and inflammation through the upregulation of AMPK Thr172 phosphorylation and PPAR-α protein expression. Moreover, although no effects of intervention in PPAR-γ protein concentration were observed, we found increased levels of its target genes Cd36 and Scd1 in exercised group, demonstrating augmented transcriptional activity. AT reduced liver cytokines concentrations, such as TNF-α, IL-10, MCP-1 and IL-6, regardless of increased Ser536 NF-κB phosphorylation. In fact, none of the interventions regulated NF-κB target genes Il1b and Cccl2, demonstrating its low transcriptional activity. Therefore, we conclude that AT attenuates the progression of liver macrovesicular steatosis and inflammation through AMPK-PPAR-α signaling and PPAR-γ activation, respectively, improving insulin resistance in obese mice.
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Affiliation(s)
- Tiego Aparecido Diniz
- Immunometabolism Research Group, Department of Cell and Developmental Biology, University of São Paulo, Avenida Prof Lineu Prestes, 1524, CEP 05508-900 Butantã, São Paulo, Brazil
| | - Edson Alves de Lima Junior
- Immunometabolism Research Group, Department of Cell and Developmental Biology, University of São Paulo, Avenida Prof Lineu Prestes, 1524, CEP 05508-900 Butantã, São Paulo, Brazil
| | - Alexandre Abílio Teixeira
- Immunometabolism Research Group, Department of Cell and Developmental Biology, University of São Paulo, Avenida Prof Lineu Prestes, 1524, CEP 05508-900 Butantã, São Paulo, Brazil
| | - Luana Amorim Biondo
- Immunometabolism Research Group, Department of Cell and Developmental Biology, University of São Paulo, Avenida Prof Lineu Prestes, 1524, CEP 05508-900 Butantã, São Paulo, Brazil
| | | | | | - Loreana Sanches Silveira
- Immunometabolism Research Group, Department of Cell and Developmental Biology, University of São Paulo, Avenida Prof Lineu Prestes, 1524, CEP 05508-900 Butantã, São Paulo, Brazil
| | - Carol Cabral-Santos
- Exercise and Immunometabolism Research Group, Department of Physical Education, University of the State of Sao Paulo, Rua Roberto Simonsen, 305, 19060-900 Presidente Prudente, SP, Brazil
| | - Camila Oliveira de Souza
- Immunometabolism Research Group, Department of Cell and Developmental Biology, University of São Paulo, Avenida Prof Lineu Prestes, 1524, CEP 05508-900 Butantã, São Paulo, Brazil
| | - José Cesar Rosa Neto
- Immunometabolism Research Group, Department of Cell and Developmental Biology, University of São Paulo, Avenida Prof Lineu Prestes, 1524, CEP 05508-900 Butantã, São Paulo, Brazil.
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23
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Bae-Gartz I, Kasper P, Großmann N, Breuer S, Janoschek R, Kretschmer T, Appel S, Schmitz L, Vohlen C, Quaas A, Schweiger MR, Grimm C, Fischer A, Ferrari N, Graf C, Frese CK, Lang S, Demir M, Schramm C, Fink G, Goeser T, Dötsch J, Hucklenbruch-Rother E. Maternal exercise conveys protection against NAFLD in the offspring via hepatic metabolic programming. Sci Rep 2020; 10:15424. [PMID: 32963289 PMCID: PMC7508970 DOI: 10.1038/s41598-020-72022-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 05/11/2020] [Indexed: 12/13/2022] Open
Abstract
Maternal exercise (ME) during pregnancy has been shown to improve metabolic health in offspring and confers protection against the development of non-alcoholic fatty liver disease (NAFLD). However, its underlying mechanism are still poorly understood, and it remains unclear whether protective effects on hepatic metabolism are already seen in the offspring early life. This study aimed at determining the effects of ME during pregnancy on offspring body composition and development of NAFLD while focusing on proteomic-based analysis of the hepatic energy metabolism during developmental organ programming in early life. Under an obesogenic high-fat diet (HFD), male offspring of exercised C57BL/6J-mouse dams were protected from body weight gain and NAFLD in adulthood (postnatal day (P) 112). This was associated with a significant activation of hepatic AMP-activated protein kinase (AMPK), peroxisome proliferator-activated receptor alpha (PPARα) and PPAR coactivator-1 alpha (PGC1α) signaling with reduced hepatic lipogenesis and increased hepatic β-oxidation at organ programming peak in early life (P21). Concomitant proteomic analysis revealed a characteristic hepatic expression pattern in offspring as a result of ME with the most prominent impact on Cholesterol 7 alpha-hydroxylase (CYP7A1). Thus, ME may offer protection against offspring HFD-induced NAFLD by shaping hepatic proteomics signature and metabolism in early life. The results highlight the potential of exercise during pregnancy for preventing the early origins of NAFLD.
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Affiliation(s)
- Inga Bae-Gartz
- Department of Pediatrics and Adolescent Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Robert-Koch Str. 16, Building 44a, 50931, Cologne, Germany.
| | - Philipp Kasper
- Department of Gastroenterology and Hepatology, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Nora Großmann
- Department of Pediatrics and Adolescent Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Robert-Koch Str. 16, Building 44a, 50931, Cologne, Germany
| | - Saida Breuer
- Department of Pediatrics and Adolescent Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Robert-Koch Str. 16, Building 44a, 50931, Cologne, Germany
| | - Ruth Janoschek
- Department of Pediatrics and Adolescent Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Robert-Koch Str. 16, Building 44a, 50931, Cologne, Germany
| | - Tobias Kretschmer
- Department of Pediatrics and Adolescent Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Robert-Koch Str. 16, Building 44a, 50931, Cologne, Germany
| | - Sarah Appel
- Department of Pediatrics and Adolescent Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Robert-Koch Str. 16, Building 44a, 50931, Cologne, Germany
| | - Lisa Schmitz
- Department of Pediatrics and Adolescent Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Robert-Koch Str. 16, Building 44a, 50931, Cologne, Germany
| | - Christina Vohlen
- Department of Pediatrics and Adolescent Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Robert-Koch Str. 16, Building 44a, 50931, Cologne, Germany
| | - Alexander Quaas
- Department of Pathology, University Hospital of Cologne, Cologne, Germany
| | - Michal R Schweiger
- Translational Epigenetics and Tumor Genetic, University Hospital of Cologne, Cologne, Germany
| | - Christina Grimm
- Translational Epigenetics and Tumor Genetic, University Hospital of Cologne, Cologne, Germany
| | | | - Nina Ferrari
- Cologne Center for Prevention in Childhood and Youth / Heart Center Cologne, University Hospital of Cologne, Cologne, Germany.,Institute of Movement and Neuroscience, Department of Movement and Health Promotion, German Sport University, Cologne, Germany
| | - Christine Graf
- Institute of Movement and Neuroscience, Department of Movement and Health Promotion, German Sport University, Cologne, Germany
| | - Christian K Frese
- Proteomics Core Facility, CECAD Research Center, University Hospital of Cologne, Cologne, Germany.,Max-Planck-Unit for the Science of Pathogens, Charité University Medicine Berlin, Berlin, Germany
| | - Sonja Lang
- Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Münevver Demir
- Department of Hepatology and Gastroenterology, Charité Campus Mitte and Campus Virchow Clinic, Charité University Medicine Berlin, Berlin, Germany
| | - Christoph Schramm
- Department of Gastroenterology and Hepatology, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Gregor Fink
- Department of Pediatrics and Adolescent Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Robert-Koch Str. 16, Building 44a, 50931, Cologne, Germany
| | - Tobias Goeser
- Department of Gastroenterology and Hepatology, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Jörg Dötsch
- Department of Pediatrics and Adolescent Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Robert-Koch Str. 16, Building 44a, 50931, Cologne, Germany
| | - Eva Hucklenbruch-Rother
- Department of Pediatrics and Adolescent Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Robert-Koch Str. 16, Building 44a, 50931, Cologne, Germany
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24
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Moderate-Intensity Exercise and Musical Co-Treatment Decreased the Circulating Level of Betatrophin. Int J Endocrinol 2020. [DOI: 10.1155/2020/3098261] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Introduction. In general, the significant contribution of lack of physical activity is strongly correlated with lipid metabolism and metabolic disorder. Hitherto, betatrophin is a potential hormone that regulates the lipid profile in the body circulation-associated triglyceride level. This study was designed to evaluate the alteration of betatrophin levels in subject-onset hypertriglyceridemia with exercise intervention co-treated with music. Materials and Methods. A total of 60 nonprofessional athletes were enrolled in this study and given moderate-intensity exercise (MIE) combined with middle rhythm musical co-treatment. The ELISA method was applied to quantify the serum level of betatrophin in all samples. The statistical analysis was performed by applying the Kolmogorov–Smirnov normality test, one-way ANOVA, and parametric linear correlation and regression. Results. Interestingly, our data show that MIE decreased the circulating level of betatrophin combined with music (12.47 ± 0.40 ng/mL) compared with that without musical co-treatment (20.81 ± 1.16 ng/mL) and high-intensity exercise (26.91 ± 2.23 ng/mL). The plasma level of betatrophin was positively correlated with triglycerides (r = 0.316, p≤0.05), systolic blood pressure (r = 0.428, p≤0.01), HDL (r = 0.366, p≤0.05), energy expenditure (r = 0.586, p≤0.001), PGC-1α (r = 0.573, p≤0.001), and irisin (r = 0.863, p≤0.001). By contrast, the plasma level of betatrophin was negatively associated with age (r = −0.298, p≤0.05) and LDL cholesterol (r = −0.372, p≤0.05). Importantly, betatrophin is a significant predictor for energy expenditure (p≤0.001) and plasma triglyceride levels (p≤0.05). Conclusions. Our data demonstrate that betatrophin levels decreased the post-MIE and musical therapeutical combination. Therefore, betatrophin may provide a benefit as the potential biomarker of physiological performance-associated physical training.
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la Fuente FPD, Quezada L, Sepúlveda C, Monsalves-Alvarez M, Rodríguez JM, Sacristán C, Chiong M, Llanos M, Espinosa A, Troncoso R. Exercise regulates lipid droplet dynamics in normal and fatty liver. Biochim Biophys Acta Mol Cell Biol Lipids 2019; 1864:158519. [PMID: 31473346 DOI: 10.1016/j.bbalip.2019.158519] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 08/19/2019] [Accepted: 08/26/2019] [Indexed: 12/20/2022]
Abstract
Lipids droplets (LD) are dynamics organelles that accumulate neutral lipids during nutrient surplus. LD alternates between periods of growth and consumption through regulated processes including as de novo lipogenesis, lipolysis and lipophagy. The liver is a central tissue in the regulation of lipid metabolism. Non-Alcoholic Fatty Liver Diseases (NAFLD) is result of the accumulation of LD in liver. Several works have been demonstrated a positive effect of exercise on reduction of liver fat. However, the study of the exercise on liver LD dynamics is far from being understood. Here we investigated the effect of chronic exercise in the regulation of LD dynamics using a mouse model of high fat diet-induced NAFLD. Mice were fed with a high-fat diet or control diet for 12 weeks; then groups were divided into chronic exercise or sedentary for additional 8 weeks. Our results showed that exercise reduced fasting glycaemia, insulin and triacylglycerides, also liver damage. However, exercise did not affect the intrahepatic triacylglycerides levels and the number of LD but reduced their size. In addition, exercise decreased the SREBP-1c levels, without changes in lipolysis, mitochondrial proteins or autophagy/lipophagy markers. Unexpectedly in the control mice, exercise increased the number of LD, also PLIN2, SREBP-1c, FAS, ATGL, HSL and MTTP levels. Our findings show that exercise rescues the liver damage in a model of NAFLD reducing the size of LD and normalizing protein markers of de novo lipogenesis and lipolysis. Moreover, exercise increases proteins associated to LD dynamics in the control mice.
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Affiliation(s)
- Francisco Pino-de la Fuente
- Laboratorio de Investigación en Nutrición y Actividad Física (LABINAF), Instituto de Nutrición y Tecnología de los Alimentos (INTA), Universidad de Chile, Santiago, Chile
| | - Laura Quezada
- Laboratorio de Investigación en Nutrición y Actividad Física (LABINAF), Instituto de Nutrición y Tecnología de los Alimentos (INTA), Universidad de Chile, Santiago, Chile
| | - Carlos Sepúlveda
- Laboratorio de Investigación en Nutrición y Actividad Física (LABINAF), Instituto de Nutrición y Tecnología de los Alimentos (INTA), Universidad de Chile, Santiago, Chile; Laboratorio de Ciencias del Ejercicio, Clínica MEDS, Santiago, Chile
| | - Matías Monsalves-Alvarez
- Laboratorio de Investigación en Nutrición y Actividad Física (LABINAF), Instituto de Nutrición y Tecnología de los Alimentos (INTA), Universidad de Chile, Santiago, Chile
| | - Juan M Rodríguez
- Laboratorio de Investigación en Nutrición y Actividad Física (LABINAF), Instituto de Nutrición y Tecnología de los Alimentos (INTA), Universidad de Chile, Santiago, Chile
| | - Camila Sacristán
- Departamento de Tecnología Medica, Facultad de Medicina, Universidad de Chile, Chile
| | - Mario Chiong
- Advanced Center for Chronic Disease (ACCDiS), Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
| | - Miguel Llanos
- Laboratorio de Nutrición y Regulación Metabólica, INTA, Universidad de Chile, Chile
| | - Alejandra Espinosa
- Departamento de Tecnología Medica, Facultad de Medicina, Universidad de Chile, Chile.
| | - Rodrigo Troncoso
- Laboratorio de Investigación en Nutrición y Actividad Física (LABINAF), Instituto de Nutrición y Tecnología de los Alimentos (INTA), Universidad de Chile, Santiago, Chile; Advanced Center for Chronic Disease (ACCDiS), Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile; Autophagy Research Center (ARC), Universidad de Chile, Santiago, Chile.
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26
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Kristensen CM, Dethlefsen MM, Tøndering AS, Lassen SB, Meldgaard JN, Ringholm S, Pilegaard H. PGC-1α in hepatic UPR during high-fat high-fructose diet and exercise training in mice. Physiol Rep 2018; 6:e13819. [PMID: 30105901 PMCID: PMC6090221 DOI: 10.14814/phy2.13819] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 06/18/2018] [Accepted: 06/21/2018] [Indexed: 01/06/2023] Open
Abstract
Diet-induced obesity is associated with hepatic steatosis, which has been linked with activation of the unfolded protein response (UPR). PGC-1α is a transcriptional coactivator involved in exercise training-induced adaptations in muscle and liver. Therefore, the aim of this study was to test the hypothesis that PGC-1α is required for exercise training-mediated prevention of diet-induced steatosis and UPR activation in liver. Male liver-specific PGC-1α knockout (LKO) and littermate floxed (lox/lox) mice were divided into two groups receiving either control diet (CON) or high-fat high-fructose diet (HFF). After 9 weeks, half of the HFF mice were treadmill exercise trained for 4 weeks (HFF+ExT), while the rest were kept sedentary. HFF resulted in increased body and liver weight, adiposity, hepatic steatosis and whole body glucose intolerance as well as decreased hepatic IRE1α phosphorylation. Exercise training prevented the HFF-induced weight gain and partially prevented increased liver weight, adiposity and glucose intolerance, but with no effect on liver triglycerides. In addition, BiP protein and CHOP mRNA content increased with exercise training compared with CON and HFF, respectively. Lack of PGC-1α in the liver only resulted in minor changes in the PERK pathway. In conclusion, this study provides evidence for dissociation between diet-induced hepatic triglyceride accumulation and hepatic UPR activation. In addition, PGC-1α was not required for maintenance of basal UPR in the liver and due to only minor exercise training effects on UPR further studies are needed to conclude on the potential role of PGC-1α in exercise training-induced adaptations in hepatic UPR.
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Affiliation(s)
| | | | | | - Signe B. Lassen
- Department of BiologyUniversity of CopenhagenCopenhagenDenmark
| | | | - Stine Ringholm
- Department of BiologyUniversity of CopenhagenCopenhagenDenmark
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27
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Dethlefsen MM, Kristensen CM, Tøndering AS, Lassen SB, Ringholm S, Pilegaard H. Impact of liver PGC-1α on exercise and exercise training-induced regulation of hepatic autophagy and mitophagy in mice on HFF. Physiol Rep 2018; 6:e13731. [PMID: 29962089 PMCID: PMC6026591 DOI: 10.14814/phy2.13731] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 05/07/2018] [Accepted: 05/08/2018] [Indexed: 01/01/2023] Open
Abstract
Hepatic autophagy has been shown to be regulated by acute exercise and exercise training. Moreover, high-fat diet-induced steatosis has been reported to be associated with impaired hepatic autophagy. In addition, autophagy has been shown to be regulated by acute exercise and exercise training in a PGC-1α dependent manner in skeletal muscle. The aim of this study was to test the hypotheses that high-fat high-fructose (HFF) diet changes hepatic autophagy and mitophagy, that exercise training can restore this through a PGC-1α-mediated mechanism, and that acute exercise regulates autophagy and mitophagy in the liver. Liver samples were obtained from liver-specific PGC-1α KO mice and their littermate Lox/Lox mice fed a HFF diet or a control diet for 13 weeks. The HFF mice were either exercise trained (ExT) on a treadmill the final 5 weeks or remained sedentary (UT). In addition, half of each group performed at the end of the intervention an acute 1 h exercise bout. HFF resulted in increased hepatic BNIP3 dimer and Parkin protein, while exercise training increased BNIP3 total protein without affecting the elevated BNIP3 dimer protein. In addition, exercise training reversed a HFF-induced increase in hepatic LC3II/LC3I protein ratio, as well as a decreased PGC-1α mRNA level. Acute exercise increased hepatic PGC-1α mRNA in HFF UT mice only. In conclusion, this indicates that exercise training in part reverses a HFF-induced increase in hepatic autophagy and capacity for mitophagy in a PGC-1α-independent manner. Moreover, HFF may blunt acute exercise-induced regulation of hepatic autophagy.
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Affiliation(s)
- Maja M. Dethlefsen
- Department of BiologySection for Cell Biology and PhysiologyUniversity of CopenhagenKobenhavnDenmark
| | - Caroline M. Kristensen
- Department of BiologySection for Cell Biology and PhysiologyUniversity of CopenhagenKobenhavnDenmark
| | - Anna S. Tøndering
- Department of BiologySection for Cell Biology and PhysiologyUniversity of CopenhagenKobenhavnDenmark
| | - Signe B. Lassen
- Department of BiologySection for Cell Biology and PhysiologyUniversity of CopenhagenKobenhavnDenmark
| | - Stine Ringholm
- Department of BiologySection for Cell Biology and PhysiologyUniversity of CopenhagenKobenhavnDenmark
| | - Henriette Pilegaard
- Department of BiologySection for Cell Biology and PhysiologyUniversity of CopenhagenKobenhavnDenmark
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28
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Role of exercise in the mechanisms ameliorating hepatic steatosis in non-alcoholic fatty liver disease. SPORT SCIENCES FOR HEALTH 2018. [DOI: 10.1007/s11332-018-0459-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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29
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Zhang Q, Xu L, Xia J, Wang D, Qian M, Ding S. Treatment of Diabetic Mice with a Combination of Ketogenic Diet and Aerobic Exercise via Modulations of PPARs Gene Programs. PPAR Res 2018; 2018:4827643. [PMID: 29743883 PMCID: PMC5884211 DOI: 10.1155/2018/4827643] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2017] [Accepted: 02/06/2018] [Indexed: 02/07/2023] Open
Abstract
Type 2 diabetes is a prevalent chronic disease arising as a serious public health problem worldwide. Diet intervention is considered to be a critical strategy in glycemic control of diabetic patients. Recently, the low-carbohydrate ketogenic diet is shown to be effective in glycemic control and weight loss. However, hepatic lipid accumulation could be observed in mice treated with ketogenic diet. On the other hand, exercise is a well-known approach for treating nonalcoholic fatty liver disease. We thus hypothesize that the combination of ketogenic diet and exercise could improve insulin sensitivity, while minimizing adverse effect of hepatic steatosis. In order to test this hypothesis, we established diabetic mice model with streptozotocin (STZ) and divided them into control group, ketogenic diet group, and ketogenic diet with aerobic exercise group. We found that after six weeks of intervention, mice treated with ketogenic diet and ketogenic diet combined with exercise both have lower body weights, HbAlc level, HOMA index, and improvements in insulin sensitivity, compared with diabetes group. In addition, mice in ketogenic diet intervention exhibited hepatic steatosis shown by serum and hepatic parameters, as well as histochemistry staining in the liver, which could be largely relieved by exercise. Furthermore, gene analysis revealed that ketogenic diet in combination with exercise reduced PPARγ and lipid synthetic genes, as well as enhancing PPARα and lipid β-oxidation gene program in the liver compared to those in ketogenic diet without exercise. Overall, the present study demonstrated that the combination of ketogenic diet and a moderate-intensity aerobic exercise intervention improved insulin sensitivity in diabetic mice, while avoiding hepatic steatosis, which provided a novel strategy in the combat of diabetes.
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Affiliation(s)
- Qiang Zhang
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention, Ministry of Education, East China Normal University, Shanghai 200241, China
- School of Physical Education & Health Care, East China Normal University, Shanghai 200241, China
| | - Lingyan Xu
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Jie Xia
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention, Ministry of Education, East China Normal University, Shanghai 200241, China
- School of Physical Education & Health Care, East China Normal University, Shanghai 200241, China
| | - Dongmei Wang
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Min Qian
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Shuzhe Ding
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention, Ministry of Education, East China Normal University, Shanghai 200241, China
- School of Physical Education & Health Care, East China Normal University, Shanghai 200241, China
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30
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Lambert K, Hokayem M, Thomas C, Fabre O, Cassan C, Bourret A, Bernex F, Feuillet-Coudray C, Notarnicola C, Mercier J, Avignon A, Bisbal C. Combination of nutritional polyphenols supplementation with exercise training counteracts insulin resistance and improves endurance in high-fat diet-induced obese rats. Sci Rep 2018; 8:2885. [PMID: 29440695 PMCID: PMC5811550 DOI: 10.1038/s41598-018-21287-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 01/29/2018] [Indexed: 12/22/2022] Open
Abstract
Separately, polyphenols and exercise are known to prevent insulin resistance (IR) but their combined curative effects on established obesity and IR require further investigation. Therefore, we compared the metabolic effects of a combination of exercise and grape polyphenols supplementation in obese IR rats with high-fat diet (EXOPP) to the effect of high-fat diet alone (HF) or with a nutritional supplementation of grape polyphenols (PP) or with endurance exercise (EXO) during 8 wks. We observed an improvement of systemic and skeletal muscle insulin sensitivity in EXO and EXOPP rats. EXOPP rats compared to HF rats presented a lower insulinemia and HOMA-IR with higher liver and muscle glycogen contents. Interestingly, EXOPP rats had a 68% enhanced endurance capacity compared to EXO rats with also a higher activation of AMPK compared to sedentary and EXO rats with increased lipid oxidation. Together, our results suggest that grape polyphenols supplementation combined with exercise has a synergistic effect by increasing muscle lipid oxidation and sparing glycogen utilization which thus enhances endurance capacity. Our data highlight that in cases of established obesity and IR, the combination of nutritional grape polyphenols supplementation and exercise heighten and intensify their individual metabolic effects.
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Affiliation(s)
- Karen Lambert
- PhyMedExp, University of Montpellier, INSERM U1046, CNRS UMR 9214. 34295, Montpellier, cedex 5, France.
| | - Marie Hokayem
- PhyMedExp, University of Montpellier, INSERM U1046, CNRS UMR 9214. 34295, Montpellier, cedex 5, France
| | - Claire Thomas
- PhyMedExp, University of Montpellier, INSERM U1046, CNRS UMR 9214. 34295, Montpellier, cedex 5, France.,University d'Evry Val d'Essonne, département STAPS. François Mitterrand Boulevard, 91025, Evry, France
| | - Odile Fabre
- PhyMedExp, University of Montpellier, INSERM U1046, CNRS UMR 9214. 34295, Montpellier, cedex 5, France
| | - Cécile Cassan
- PhyMedExp, University of Montpellier, INSERM U1046, CNRS UMR 9214. 34295, Montpellier, cedex 5, France
| | - Annick Bourret
- PhyMedExp, University of Montpellier, INSERM U1046, CNRS UMR 9214. 34295, Montpellier, cedex 5, France
| | - Florence Bernex
- PhyMedExp, University of Montpellier, INSERM U1046, CNRS UMR 9214. 34295, Montpellier, cedex 5, France
| | | | - Cécile Notarnicola
- PhyMedExp, University of Montpellier, INSERM U1046, CNRS UMR 9214. 34295, Montpellier, cedex 5, France
| | - Jacques Mercier
- PhyMedExp, University of Montpellier, INSERM U1046, CNRS UMR 9214. 34295, Montpellier, cedex 5, France.,Centre Hospitalier Régional Universitaire (CHRU) Montpellier, 34295, Montpellier, France
| | - Antoine Avignon
- PhyMedExp, University of Montpellier, INSERM U1046, CNRS UMR 9214. 34295, Montpellier, cedex 5, France.,Centre Hospitalier Régional Universitaire (CHRU) Montpellier, 34295, Montpellier, France
| | - Catherine Bisbal
- PhyMedExp, University of Montpellier, INSERM U1046, CNRS UMR 9214. 34295, Montpellier, cedex 5, France
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Kristensen CM, Brandt CT, Ringholm S, Pilegaard H. PGC-1α in aging and lifelong exercise training-mediated regulation of UPR in mouse liver. Exp Gerontol 2017; 98:124-133. [PMID: 28801170 DOI: 10.1016/j.exger.2017.08.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 08/04/2017] [Accepted: 08/05/2017] [Indexed: 02/04/2023]
Abstract
Aging is associated with changes in several metabolic pathways affecting liver function including the adaptive unfolded protein response (UPR). On the other hand, exercise training has been shown to exert beneficial effects on metabolism in the liver and exercise training has been reported to affect hepatic UPR. PGC-1α is a transcriptional coactivator involved in exercise training-induced adaptations in skeletal muscle and liver. Therefore, the aim of the present study was to examine the impact of PGC-1α in aging and lifelong exercise training-induced hepatic UPR in mice. Liver was obtained from young (3months old), aged (15months old) and lifelong exercise trained aged wild-type (WT) and whole-body PGC-1α knockout (KO) mice. Hepatic BiP, IRE1α and cleaved ATF6 protein content increased, whereas PERK protein content was reduced with aging indicating both increased and decreased capacity of specific UPR pathways and increased activity of the ATF6 pathway in the liver with aging. Lifelong exercise training prevented the age-associated change in BiP and IRE1α protein, but not cleaved ATF6 protein and resulted in further decreased PERK protein. Taken together, the present study provides evidence that the capacity and activity of the three UPR pathways are differentially regulated in the liver with aging and lifelong exercise training. In addition, PGC-1α does not seem to regulate the activity of hepatic UPR in response to exercise training, but to influence the capacity of the liver to induce UPR in a pathway specific manner.
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Affiliation(s)
| | | | - Stine Ringholm
- Department of Biology, University of Copenhagen, Denmark
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