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Barroso de Queiroz Davoli G, Bartels B, Mattiello-Sverzut AC, Takken T. Cardiopulmonary exercise testing in neuromuscular disease: a systematic review. Expert Rev Cardiovasc Ther 2021; 19:975-991. [PMID: 34826261 DOI: 10.1080/14779072.2021.2009802] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
INTRODUCTION Cardiopulmonary exercise testing (CPET) is increasingly used to determine aerobic fitness in health and disability conditions. Patients with neuromuscular diseases (NMDs) often present with symptoms of cardiac and/or skeletal muscle dysfunction and fatigue that might impede the ability to deliver maximal cardiopulmonary effort. Although an increasing number of studies report on NMDs' physical fitness, the applicability of CPET remains largely unknown. AREAS COVERED This systematic review synthesized evidence about the quality and feasibility of CPET in NMDs and patient's aerobic fitness. The review followed the PRISMA guidelines (PROSPERO number CRD42020211068). Between September and October 2020 one independent reviewer searched the PubMed/MEDLINE, EMBASE, SCOPUS, and Web of Science databases. Excluding reviews and protocol description articles without baseline data, all study designs using CPET to assess adult or pediatric patients with NMDs were included. The methodological quality was assessed according to the American Thoracic Society/American College of Chest Physicians (ATS/ACCP) recommendations. EXPERT OPINION CPET is feasible for ambulatory patients with NMDs when their functional level and the exercise modality are taken into account. However, there is still a vast potential for standardizing and designing disease-specific CPET protocols for patients with NMDs. Moreover, future studies are urged to follow the ATS/ACCP recommendations.
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Affiliation(s)
| | - Bart Bartels
- Child Development & Exercise Center, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, The Netherlands
| | | | - Tim Takken
- Child Development & Exercise Center, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, The Netherlands
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Béghin L, Coopman S, Schiff M, Vamecq J, Mention-Mulliez K, Hankard R, Cuisset JM, Ogier H, Gottrand F, Dobbelaere D. Doubling diet fat on sugar ratio in children with mitochondrial OXPHOS disorders: Effects of a randomized trial on resting energy expenditure, diet induced thermogenesis and body composition. Clin Nutr 2016; 35:1414-1422. [PMID: 27173380 DOI: 10.1016/j.clnu.2016.03.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 02/11/2016] [Accepted: 03/20/2016] [Indexed: 10/22/2022]
Abstract
BACKGROUND & AIMS Mitochondrial OXPHOS disorders (MODs) affect one or several complexes of respiratory chain oxidative phosphorylation. An increased fat/low-carbohydrate ratio of the diet was recommended for treating MODs without, however, evaluating its potential benefits through changes in the respective contributions of cell pathways (glycolysis, fatty acid oxidation) initiating energy production. Therefore, the objective of the present work was to compare Resting Energy Expenditure (REE) under basal diet (BD) and challenging diet (CD) in which fat on sugar content ratio was doubled. Diet-induced thermogenesis (DIT) and body compositions were also compared. Energetic vs regulatory aspects of increasing fat contribution to total nutritional energy input were essentially addressed through measures primarily aiming at modifying total fat amounts and not the types of fats in designed diets. METHODS In this randomized cross-over study, BD contained 10% proteins/30% lipids/60% carbohydrates (fat on sugar ratio = 0.5) and was the imposed diet at baseline. CD contained 10% proteins/45% lipids/45% carbohydrates (fat on sugar ratio = 1). Main and second evaluation criteria measured by indirect calorimetry (QUARK RMR®, Cosmed, Pavona; Italy) were REE and DIT, respectively. Thirty four MOD patients were included; 22 (mean age 13.2 ± 4.7 years, 50% female; BMI 16.9 ± 4.2 kg/m2) were evaluated for REE, and 12 (mean age 13.8 ± 4.8 years, 60% female; BMI 17.4 ± 4.6 kg/m2) also for DIT. OXPHOS complex deficiency repartition in 22 analysed patients was 55% for complex I, 9% for complex III, 27% for complex IV and 9% for other proteins. RESULTS Neither carry-over nor period effects were detected (p = 0.878; ANOVA for repeated measures). REE was similar between BD vs CD (1148.8 ± 301.7 vs 1156.1 ± 278.8 kcal/day; p = 0.942) as well as DIT (peak DIT 260 vs 265 kcal/day; p = 0.842) and body composition (21.9 ± 13.0 vs 21.6 ± 13.3% of fat mass; p = 0.810). CONCLUSION Doubling diet fat on sugar ratio does not appear to improve, per se, energetic status and body composition of patients with MODs.
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Affiliation(s)
- Laurent Béghin
- Centre d'Investigation Clinique, CIC-1403-Inserm-CH&U, Lille University Hospital, F-59000 Lille, France; LIRIC- Lille Inflammation Research International Center/UMR U995 Inserm, Lille, France.
| | - Stéphanie Coopman
- Centre d'Investigation Clinique, CIC-1403-Inserm-CH&U, Lille University Hospital, F-59000 Lille, France.
| | - Manuel Schiff
- Reference Center for Inherited Metabolic Diseases, Robert Debré University Hospital, Paris, France.
| | - Joseph Vamecq
- Inserm, Department of Biochemistry and Molecular Biology, HMNO, CBP, CHRU Lille and RADEME EA 7364, Lille Nord of France University, F-59000, Lille, France.
| | - Karine Mention-Mulliez
- Reference Center for Inherited Metabolic Diseases in Child and Adulthood, Lille University Children's Hospital Jeanne de Flandre, and RADEME EA 7364, Lille University, F-59000 Lille, France.
| | - Régis Hankard
- Inserm U 1069, F Rabelais University, Tours, F-37000, France.
| | - Jean-Marie Cuisset
- Pediatric Neurology Unit, Lille University Hospital, F-59000, Lille, France
| | - Hélène Ogier
- Reference Center for Inherited Metabolic Diseases, Robert Debré University Hospital, Paris, France
| | - Frédéric Gottrand
- Centre d'Investigation Clinique, CIC-1403-Inserm-CH&U, Lille University Hospital, F-59000 Lille, France; LIRIC- Lille Inflammation Research International Center/UMR U995 Inserm, Lille, France.
| | - Dries Dobbelaere
- Reference Center for Inherited Metabolic Diseases in Child and Adulthood, Lille University Children's Hospital Jeanne de Flandre, and RADEME EA 7364, Lille University, F-59000 Lille, France.
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Vernochet C, Mourier A, Bezy O, Macotela Y, Boucher J, Rardin MJ, An D, Lee KY, Ilkayeva OR, Zingaretti CM, Emanuelli B, Smyth G, Cinti S, Newgard CB, Gibson BW, Larsson NG, Kahn CR. Adipose-specific deletion of TFAM increases mitochondrial oxidation and protects mice against obesity and insulin resistance. Cell Metab 2012; 16:765-76. [PMID: 23168219 PMCID: PMC3529641 DOI: 10.1016/j.cmet.2012.10.016] [Citation(s) in RCA: 172] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2012] [Revised: 08/08/2012] [Accepted: 10/25/2012] [Indexed: 01/01/2023]
Abstract
Obesity and type 2 diabetes are associated with mitochondrial dysfunction in adipose tissue, but the role for adipose tissue mitochondria in the development of these disorders is currently unknown. To understand the impact of adipose tissue mitochondria on whole-body metabolism, we have generated a mouse model with disruption of the mitochondrial transcription factor A (TFAM) specifically in fat. F-TFKO adipose tissue exhibit decreased mtDNA copy number, altered levels of proteins of the electron transport chain, and perturbed mitochondrial function with decreased complex I activity and greater oxygen consumption and uncoupling. As a result, F-TFKO mice exhibit higher energy expenditure and are protected from age- and diet-induced obesity, insulin resistance, and hepatosteatosis, despite a greater food intake. Thus, TFAM deletion in the adipose tissue increases mitochondrial oxidation that has positive metabolic effects, suggesting that regulation of adipose tissue mitochondria may be a potential therapeutic target for the treatment of obesity.
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Affiliation(s)
- Cecile Vernochet
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center and Department of Medicine, Harvard Medical School, Boston, MA
| | - Arnaud Mourier
- Max Planck Institute for Biology of Ageing, Robert-Koch-Str. 21, 50931 Cologne, Germany
| | - Olivier Bezy
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center and Department of Medicine, Harvard Medical School, Boston, MA
- Pfizer, Inc, Cardiovascular Metabolic and Endocrine Diseases (CVMED), 620 Memorial Drive, Cambridge, MA 02139
| | - Yazmin Macotela
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center and Department of Medicine, Harvard Medical School, Boston, MA
- Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM-Juriquilla, 76230 Querétaro, Mexico
| | - Jeremie Boucher
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center and Department of Medicine, Harvard Medical School, Boston, MA
| | - Matthew J. Rardin
- Buck Institute for Research on Aging, 8001 Redwood Boulevard, Novato, CA 94945, USA
| | - Ding An
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center and Department of Medicine, Harvard Medical School, Boston, MA
| | - Kevin Y. Lee
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center and Department of Medicine, Harvard Medical School, Boston, MA
| | - Olga R. Ilkayeva
- Sarah W. Stedman Nutrition and Metabolism Center, Duke University Medical Center, Durham, NC 27704, USA
| | - Cristina M. Zingaretti
- Department Experimental and Clinical Medicine-Diagnostic Electron Microscopy Unit University-United Hospitals of Ancona, Ancona 60020 & Adipose Organ Lab IRCCS San Raffaele Pisana, Rome 00163, Italy
| | - Brice Emanuelli
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center and Department of Medicine, Harvard Medical School, Boston, MA
| | - Graham Smyth
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center and Department of Medicine, Harvard Medical School, Boston, MA
| | - Saverio Cinti
- Department Experimental and Clinical Medicine-Diagnostic Electron Microscopy Unit University-United Hospitals of Ancona, Ancona 60020 & Adipose Organ Lab IRCCS San Raffaele Pisana, Rome 00163, Italy
| | - Christopher B. Newgard
- Sarah W. Stedman Nutrition and Metabolism Center, Duke University Medical Center, Durham, NC 27704, USA
| | - Bradford W. Gibson
- Buck Institute for Research on Aging, 8001 Redwood Boulevard, Novato, CA 94945, USA
| | - Nils-Göran Larsson
- Max Planck Institute for Biology of Ageing, Robert-Koch-Str. 21, 50931 Cologne, Germany
| | - C. Ronald Kahn
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center and Department of Medicine, Harvard Medical School, Boston, MA
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Schiff M, Bénit P, El-Khoury R, Schlemmer D, Benoist JF, Rustin P. Mouse studies to shape clinical trials for mitochondrial diseases: high fat diet in Harlequin mice. PLoS One 2011; 6:e28823. [PMID: 22174907 PMCID: PMC3236768 DOI: 10.1371/journal.pone.0028823] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2011] [Accepted: 11/15/2011] [Indexed: 12/13/2022] Open
Abstract
Background Therapeutic options in human mitochondrial oxidative phosphorylation (OXPHOS) diseases have been poorly evaluated mostly because of the scarcity of cohorts and the inter-individual variability of disease progression. Thus, while a high fat diet (HFD) is often recommended, data regarding efficacy are limited. Our objectives were 1) to determine our ability to evaluate therapeutic options in the Harlequin OXPHOS complex I (CI)-deficient mice, in the context of a mitochondrial disease with human hallmarks and 2) to assess the effects of a HFD. Methods and Findings Before launching long and expensive animal studies, we showed that palmitate afforded long-term death-protection in 3 CI-mutant human fibroblasts cell lines. We next demonstrated that using the Harlequin mouse, it was possible to draw solid conclusions on the efficacy of a 5-month-HFD on neurodegenerative symptoms. Moreover, we could identify a group of highly responsive animals, echoing the high variability of the disease progression in Harlequin mice. Conclusions These results suggest that a reduced number of patients with identical genetic disease should be sufficient to reach firm conclusions as far as the potential existence of responders and non responders is recognized. They also positively prefigure HFD-trials in OXPHOS-deficient patients.
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Affiliation(s)
- Manuel Schiff
- INSERM, U676, Paris, France
- Université Paris 7, Faculté de Médecine Denis Diderot, IFR02, Paris, France
- APHP, Hôpital Robert Debré, Centre de Référence Maladies Héréditaires du Métabolisme, Paris, France
| | - Paule Bénit
- INSERM, U676, Paris, France
- Université Paris 7, Faculté de Médecine Denis Diderot, IFR02, Paris, France
| | - Riyad El-Khoury
- INSERM, U676, Paris, France
- Université Paris 7, Faculté de Médecine Denis Diderot, IFR02, Paris, France
| | - Dimitri Schlemmer
- APHP, Hôpital Robert Debré, Centre de Référence Maladies Héréditaires du Métabolisme, Paris, France
- APHP, Hôpital Robert Debré, Laboratoire de Biochimie, Paris, France
| | - Jean-François Benoist
- INSERM, U676, Paris, France
- APHP, Hôpital Robert Debré, Centre de Référence Maladies Héréditaires du Métabolisme, Paris, France
- APHP, Hôpital Robert Debré, Laboratoire de Biochimie, Paris, France
| | - Pierre Rustin
- INSERM, U676, Paris, France
- Université Paris 7, Faculté de Médecine Denis Diderot, IFR02, Paris, France
- * E-mail:
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Schiff M, Bénit P, Coulibaly A, Loublier S, El-Khoury R, Rustin P. Mitochondrial response to controlled nutrition in health and disease. Nutr Rev 2011; 69:65-75. [PMID: 21294740 DOI: 10.1111/j.1753-4887.2010.00363.x] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Mitochondria exert crucial physiological functions that create complex links among nutrition, health, and disease. While mitochondrial dysfunction with subsequent impairment of oxidative phosphorylation (OXPHOS) is the hallmark of the rare inherited OXPHOS diseases, OXPHOS dysfunction also plays a central role in the pathophysiology of common conditions such as type 2 diabetes and various neurodegenerative disorders. Dietary interventions, especially calorie restriction, have been shown to improve the course of these diseases and to extend the lifespan. Few data are available on the impact of nutraceuticals (macronutrients, vitamins, and cofactors) on primary inherited OXPHOS diseases. This review presents recent knowledge about the impact of nutritional modulation on mitochondria and lifespan regulation and about the development of potential treatments for mitochondrial dysfunction diseases.
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Affiliation(s)
- Manuel Schiff
- Centre de référence Maladies Métaboliques, Hôpital Robert Debré, APHP, Université Paris 7, Faculté de médecine Denis Diderot, IFR02, INSERM, U676, Paris, France.
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Schmitz JPJ, van Riel NAW, Nicolay K, Hilbers PAJ, Jeneson JAL. Silencing of glycolysis in muscle: experimental observation and numerical analysis. Exp Physiol 2009; 95:380-97. [PMID: 19801387 DOI: 10.1113/expphysiol.2009.049841] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The longstanding problem of rapid inactivation of the glycolytic pathway in skeletal muscle after contraction was investigated using (31)P NMR spectroscopy and computational modelling. Accumulation of phosphorylated glycolytic intermediates (hexose monophosphates) during cyclic contraction and subsequent turnover during metabolic recovery was measured in vivo in human quadriceps muscle using dynamic (31)P NMR spectroscopy. The concentration of hexose monophosphates in muscle peaked 40 s into metabolic recovery from maximal contractile work at 6.9 +/- 1.3 mm (mean +/- s.d.; n = 8) and subsequently declined at a rate of 0.009 +/- 0.001 mm s(1). It was next tested whether the current knowledge of the kinetic controls in the glycolytic pathway in muscle integrated in the Lambeth and Kushmerick computational model of skeletal muscle glycolysis explained the experimental data. It was found that the model underestimated the magnitude of deactivation of the glycolytic pathway in resting muscle, resulting in depletion of glycolytic intermediates and substrate for oxidative ATP synthesis. Numerical analysis of the model identified phosphofructokinase and pyruvate kinase as the kinetic control sites involved in deactivation of the glycolytic pathway. Ancillary 100-fold inhibition of both phosphofructokinase and pyruvate kinase was found necessary to predict glycolytic intermediate and ADP concentrations correctly in resting human muscle. Incorporation of this information into the model resulted in highly improved agreement between predicted and measured in vivo dynamics of hexose monophosphates in muscle following contraction. We concluded that silencing of the glycolytic pathway in muscle following contraction is most likely to be mediated by phosphofructokinase and pyruvate kinase inactivation on a time scale of seconds and minutes, respectively, and is necessary to prevent depletion of vital cellular substrates.
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Affiliation(s)
- Joep P J Schmitz
- BioModeling and BioInformatics Group, Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands.
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Wu F, Jeneson JAL, Beard DA. Oxidative ATP synthesis in skeletal muscle is controlled by substrate feedback. Am J Physiol Cell Physiol 2006; 292:C115-24. [PMID: 16837647 DOI: 10.1152/ajpcell.00237.2006] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Data from (31)P-nuclear magnetic resonance spectroscopy of human forearm flexor muscle were analyzed based on a previously developed model of mitochondrial oxidative phosphorylation (PLoS Comp Bio 1: e36, 2005) to test the hypothesis that substrate level (concentrations of ADP and inorganic phosphate) represents the primary signal governing the rate of mitochondrial ATP synthesis and maintaining the cellular ATP hydrolysis potential in skeletal muscle. Model-based predictions of cytoplasmic concentrations of phosphate metabolites (ATP, ADP, and P(i)) matched data obtained from 20 healthy volunteers and indicated that as work rate is varied from rest to submaximal exercise commensurate increases in the rate of mitochondrial ATP synthesis are effected by changes in concentrations of available ADP and P(i). Additional data from patients with a defect of complex I of the respiratory chain and a patient with a deficiency in the mitochondrial adenine nucleotide translocase were also predicted the by the model by making the appropriate adjustments to the activities of the affected proteins associates with the defects, providing both further validation of the biophysical model of the control of oxidative phosphorylation and insight into the impact of these diseases on the ability of the cell to maintain its energetic state.
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Affiliation(s)
- Fan Wu
- Department of Physiology, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA
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ter Veld F, Jeneson JAL, Nicolay K. Mitochondrial affinity for ADP is twofold lower in creatine kinase knock-out muscles. Possible role in rescuing cellular energy homeostasis. FEBS J 2005; 272:956-65. [PMID: 15691329 DOI: 10.1111/j.1742-4658.2004.04529.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Adaptations of the kinetic properties of mitochondria in striated muscle lacking cytosolic (M) and/or mitochondrial (Mi) creatine kinase (CK) isoforms in comparison to wild-type (WT) were investigated in vitro. Intact mitochondria were isolated from heart and gastrocnemius muscle of WT and single- and double CK-knock-out mice strains (cytosolic (M-CK-/-), mitochondrial (Mi-CK-/-) and double knock-out (MiM-CK-/-), respectively). Maximal ADP-stimulated oxygen consumption flux (State3 Vmax; nmol O2 x mg mitochondrial protein(-1) x min(-1)) and ADP affinity (K50ADP; microM) were determined by respirometry. State 3 Vmax and of M-CK-/- and MiM-CK-/- gastrocnemius mitochondria were twofold higher than those of WT, but were unchanged for Mi-CK-/-. For mutant cardiac mitochondria, only the of mitochondria isolated from the MiM-CK-/- phenotype was different (i.e. twofold higher) than that of WT. The implications of these adaptations for striated muscle function were explored by constructing force-flow relations of skeletal muscle respiration. It was found that the identified shift in affinity towards higher ADP concentrations in MiM-CK-/- muscle genotypes may contribute to linear mitochondrial control of the reduced cytosolic ATP free energy potentials in these phenotypes.
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Affiliation(s)
- Frank ter Veld
- Department of Experimental In Vivo NMR, Image Sciences Institute, University Medical Center, Utrecht, the Netherlands.
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