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1. Effect of dimethyl fumarate on mitochondrial metabolism in a pediatric porcine model of asphyxia-induced in-hospital cardiac arrest

Author

Piel, Sarah, McManus, Meagan J., Heye, Kristina N., Beaulieu, Forrest, Fazelinia, Hossein, Janowska, Joanna I., MacTurk, Bryce, Starr, Jonathan, Gaudio, Hunter, Patel, Nisha, Hefti, Marco M., Smalley, Martin E., Hook, Jordan N., Kohli, Neha V., Bruton, James, Hallowell, Thomas, Delso, Nile, Roberts, Anna, Lin, Yuxi, Ehinger, Johannes K., Karlsson, Michael, Berg, Robert A., Morgan, Ryan W., and Kilbaugh, Todd J.

Published
2024
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8. Preliminary Research: Application of Non-Invasive Measure of Cytochrome c Oxidase Redox States and Mitochondrial Function in a Porcine Model of Carbon Monoxide Poisoning

Author

Lewis, Alistair, Forti, Rodrigo M., Alomaja, Oladunni, Mesaros, Clementina, Piel, Sarah, Greenwood, John C., Talebi, Fatima M., Mavroudis, Constantine D., Kelly, Matthew, Kao, Shih-Han, Shofer, Frances S., Ehinger, Johannes K., Kilbaugh, Todd J., Baker, Wesley B., and Jang, David H.

Published
2022
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13. Correction to: Preliminary Research: Application of Non-Invasive Measure of Cytochrome c Oxidase Redox States and Mitochondrial Function in a Porcine Model of Carbon Monoxide Poisoning

Author

Lewis, Alistair, Forti, Rodrigo M., Alomaja, Oladunni, Mesaros, Clementina, Piel, Sarah, Greenwood, John C., Talebi, Fatima M., Mavroudis, Constantine D., Kelly, Matthew, Kao, Shih-Han, Shofer, Frances S., Ehinger, Johannes K., Kilbaugh, Todd J., Baker, Wesley B., and Jang, David H.

Published
2023
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16. Investigation of Cerebral Mitochondrial Injury in a Porcine Survivor Model of Carbon Monoxide Poisoning

Author

Mavroudis, Constantine D., primary, Lewis, Alistair, additional, Greenwood, John C., additional, Kelly, Matthew, additional, Ko, Tiffany S., additional, Forti, Rodrigo M., additional, Shin, Samuel S., additional, Shofer, Frances S., additional, Ehinger, Johannes K., additional, Baker, Wesley B., additional, Kilbaugh, Todd J., additional, and Jang, David H., additional

Published
2023
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19. Correction to: Preliminary Research: Application of Non-Invasive Measure of Cytochrome c Oxidase Redox States and Mitochondrial Function in a Porcine Model of Carbon Monoxide Poisoning

Author

Lewis, Alistair, primary, Forti, Rodrigo M., additional, Alomaja, Oladunni, additional, Mesaros, Clementina, additional, Piel, Sarah, additional, Greenwood, John C., additional, Talebi, Fatima M., additional, Mavroudis, Constantine D., additional, Kelly, Matthew, additional, Kao, Shih-Han, additional, Shofer, Frances S., additional, Ehinger, Johannes K., additional, Kilbaugh, Todd J., additional, Baker, Wesley B., additional, and Jang, David H., additional

Published
2022
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20. Succinate prodrugs as treatment for acute metabolic crisis during fluoroacetate intoxication in the rat

Author

Piel, Sarah, primary, Janowska, Joanna I., additional, Ward, J. Laurenson, additional, McManus, Meagan J., additional, Aronowitz, Danielle I., additional, Janowski, Piotr K., additional, Starr, Jonathan, additional, Hook, Jordan N., additional, Hefti, Marco M., additional, Clayman, Carly L., additional, Elmér, Eskil, additional, Hansson, Magnus J., additional, Jang, David H., additional, Karlsson, Michael, additional, Ehinger, Johannes K., additional, and Kilbaugh, Todd J., additional

Published
2022
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22. Human studies of mitochondrial biology demonstrate an overall lack of binary sex differences: A multivariate meta‐analysis

Author

Junker, Alex, primary, Wang, Jennifer, additional, Gouspillou, Gilles, additional, Ehinger, Johannes K., additional, Elmér, Eskil, additional, Sjövall, Fredrik, additional, Fisher‐Wellman, Kelsey H., additional, Neufer, P. Darrell, additional, Molina, Anthony J. A., additional, Ferrucci, Luigi, additional, and Picard, Martin, additional

Published
2022
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23. Cell-Permeable Succinate Rescues Mitochondrial Respiration in Cellular Models of Amiodarone Toxicity

Author

Bețiu, Alina M., Chamkha, Imen, Gustafsson, Ellen, Meijer, Elna, Avram, Vlad F., Frostner, Eleonor Åsander, Ehinger, Johannes K., Petrescu, Lucian, Muntean, Danina M., and Elmér, Eskil

Subjects
Blood Platelets, QH301-705.5, NV118, Cell Respiration, Succinic Acid, Amiodarone, Hep G2 Cells, Protective Agents, Article, sotalol, Mitochondria, ATP, desethylamiodarone, Chemistry, Adenosine Triphosphate, platelets, PBMCs, Humans, Prodrugs, Biology (General), HepG2 cells, QD1-999, Anti-Arrhythmia Agents, respiration
Abstract

Amiodarone is a potent antiarrhythmic drug and displays substantial liver toxicity in humans. It has previously been demonstrated that amiodarone and its metabolite (desethylamiodarone, DEA) can inhibit mitochondrial function, particularly complexes I (CI) and II (CII) of the electron transport system in various animal tissues and cell types. The present study, performed in human peripheral blood cells, and one liver-derived human cell line, is primarily aimed at assessing the concentration-dependent effects of these drugs on mitochondrial function (respiration and cellular ATP levels). Furthermore, we explore the efficacy of a novel cell-permeable succinate prodrug in alleviating the drug-induced acute mitochondrial dysfunction. Amiodarone and DEA elicit a concentration-dependent impairment of mitochondrial respiration in both intact and permeabilized platelets via the inhibition of both CI- and CII-supported respiration. The inhibitory effect seen in human platelets is also confirmed in mononuclear cells (PBMCs) and HepG2 cells. Additionally, amiodarone elicits a severe concentration-dependent ATP depletion in PBMCs, which cannot be explained solely by mitochondrial inhibition. The succinate prodrug NV118 alleviates the respiratory deficit in platelets and HepG2 cells acutely exposed to amiodarone. In conclusion, amiodarone severely inhibits metabolism in primary human mitochondria, which can be counteracted by increasing mitochondrial function using intracellular delivery of succinate.

Published
2021

24. Human studies of mitochondrial biology demonstrate an overall lack of binary sex differences: A multivariate meta-analysis

Author

Junker, Alex, primary, Wang, Jennifer, additional, Gouspillou, Gilles, additional, Ehinger, Johannes K., additional, Elmér, Eskil, additional, Sjövall, Fredrik, additional, Fisher-Wellman, Kelsey, additional, Darrell Neufer, P., additional, Molina, Anthony J.A., additional, Ferrucci, Luigi, additional, and Picard, Martin, additional

Published
2021
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26. Cell-Permeable Succinate Rescues Mitochondrial Respiration in Cellular Models of Statin Toxicity

Author

Avram, Vlad F., Chamkha, Imen, Åsander-Frostner, Eleonor, Ehinger, Johannes K., Timar, Romulus Z., Hansson, Magnus J., Muntean, Danina M., and Elmér, Eskil

Subjects
Adult, Blood Platelets, Male, Cell Respiration, NV118, Succinic Acid, nutritional and metabolic diseases, Article, statins, mitochondria, lcsh:Chemistry, Oxygen Consumption, lcsh:Biology (General), lcsh:QD1-999, platelets, Humans, Female, lipids (amino acids, peptides, and proteins), cardiovascular diseases, Hydroxymethylglutaryl-CoA Reductase Inhibitors, HepG2 cells, lcsh:QH301-705.5, cell-permeable succinate, Aged
Abstract

Statins are the cornerstone of lipid-lowering therapy. Although generally well tolerated, statin-associated muscle symptoms (SAMS) represent the main reason for treatment discontinuation. Mitochondrial dysfunction of complex I has been implicated in the pathophysiology of SAMS. The present study proposed to assess the concentration-dependent ex vivo effects of three statins on mitochondrial respiration in viable human platelets and to investigate whether a cell-permeable prodrug of succinate (complex II substrate) can compensate for statin-induced mitochondrial dysfunction. Mitochondrial respiration was assessed by high-resolution respirometry in human platelets, acutely exposed to statins in the presence/absence of the prodrug NV118. Statins concentration-dependently inhibited mitochondrial respiration in both intact and permeabilized cells. Further, statins caused an increase in non-ATP generating oxygen consumption (uncoupling), severely limiting the OXPHOS coupling efficiency, a measure of the ATP generating capacity. Cerivastatin (commercially withdrawn due to muscle toxicity) displayed a similar inhibitory capacity compared with the widely prescribed and tolerable atorvastatin, but did not elicit direct complex I inhibition. NV118 increased succinate-supported mitochondrial oxygen consumption in atorvastatin/cerivastatin-exposed platelets leading to normalization of coupled (ATP generating) respiration. The results acquired in isolated human platelets were validated in a limited set of experiments using atorvastatin in HepG2 cells, reinforcing the generalizability of the findings.

Published
2021

27. Mitochondrial dysfunction and calcium dysregulation in Leigh syndrome induced pluripotent stem cell derived neurons

Author

Galera-Monge, Teresa, Zurita-Díaz, Francisco, Canals, Isaac, Grønning Hansen, Marita, Rufián-Vázquez, Laura, Ehinger, Johannes K., Elmér, Eskil, Martin, Miguel A., Garesse, Rafael, Ahlenius, Henrik, Gallardo, M. Esther, Instituto de Salud Carlos III, Ministerio de Educación, Cultura y Deporte (España), Swedish Research Council, and European Commission

Subjects
Blotting, Western, Induced Pluripotent Stem Cells, Fluorescent Antibody Technique, Article, lcsh:Chemistry, NSC, Oxygen Consumption, Neural Stem Cells, Humans, Lactic Acid, lcsh:QH301-705.5, Cells, Cultured, Cell Proliferation, Neurons, iPSC, mtDNA, Neuron, Leigh syndrome, Mitochondria, Mitochondrial disorder, Electrophysiology, Disease modeling, lcsh:Biology (General), lcsh:QD1-999, Calcium, Leigh Disease
Abstract

This article belongs to the Special Issue Cells and Materials for Disease Modeling and Regenerative Medicine., Leigh syndrome (LS) is the most frequent infantile mitochondrial disorder (MD) and is characterized by neurodegeneration and astrogliosis in the basal ganglia or the brain stem. At present, there is no cure or treatment for this disease, partly due to scarcity of LS models. Current models generally fail to recapitulate important traits of the disease. Therefore, there is an urgent need to develop new human in vitro models. Establishment of induced pluripotent stem cells (iPSCs) followed by differentiation into neurons is a powerful tool to obtain an in vitro model for LS. Here, we describe the generation and characterization of iPSCs, neural stem cells (NSCs) and iPSC-derived neurons harboring the mtDNA mutation m.13513G>A in heteroplasmy. We have performed mitochondrial characterization, analysis of electrophysiological properties and calcium imaging of LS neurons. Here, we show a clearly compromised oxidative phosphorylation (OXPHOS) function in LS patient neurons. This is also the first report of electrophysiological studies performed on iPSC-derived neurons harboring an mtDNA mutation, which revealed that, in spite of having identical electrical properties, diseased neurons manifested mitochondrial dysfunction together with a diminished calcium buffering capacity. This could lead to an overload of cytoplasmic calcium concentration and the consequent cell death observed in patients. Importantly, our results highlight the importance of calcium homeostasis in LS pathology., This research was funded by ‘Fondo de Investigación Sanitaria, Instituto de Salud Carlos III co-funded by European Regional Development Funds’, grant number PI15/00484 and PI18/00151 to M.E.G; PI13/00556 and PI16/00789 to R.G. F.Z.-D. received grant support from the Ministerio de Educación, Cultura y Deporte (FPU13/00544). M.E.G. is supported by a ‘Miguel Servet’ contract (CP16/00046) from Instituto de Salud Carlos III and European Regional Development Funds. HA received support from the Swedish Research Council.

Published
2020

28. Mitochondrial dysfunction and calcium dysregulation in Leigh syndrome induced pluripotent stem cell derived neurons

Author

Instituto de Salud Carlos III, Ministerio de Educación, Cultura y Deporte (España), Swedish Research Council, European Commission, Galera‐Monge, Teresa, Zurita Díaz, Francisco, Canals, Isaac, Grønning Hansen, Marita, Rufián-Vázquez, Laura, Ehinger, Johannes K., Elmér, Eskil, Martín, Miguel A., Garesse, Rafael, Ahlenius, Henrik, Gallardo, M. Esther, Instituto de Salud Carlos III, Ministerio de Educación, Cultura y Deporte (España), Swedish Research Council, European Commission, Galera‐Monge, Teresa, Zurita Díaz, Francisco, Canals, Isaac, Grønning Hansen, Marita, Rufián-Vázquez, Laura, Ehinger, Johannes K., Elmér, Eskil, Martín, Miguel A., Garesse, Rafael, Ahlenius, Henrik, and Gallardo, M. Esther

Abstract

Leigh syndrome (LS) is the most frequent infantile mitochondrial disorder (MD) and is characterized by neurodegeneration and astrogliosis in the basal ganglia or the brain stem. At present, there is no cure or treatment for this disease, partly due to scarcity of LS models. Current models generally fail to recapitulate important traits of the disease. Therefore, there is an urgent need to develop new human in vitro models. Establishment of induced pluripotent stem cells (iPSCs) followed by differentiation into neurons is a powerful tool to obtain an in vitro model for LS. Here, we describe the generation and characterization of iPSCs, neural stem cells (NSCs) and iPSC-derived neurons harboring the mtDNA mutation m.13513G>A in heteroplasmy. We have performed mitochondrial characterization, analysis of electrophysiological properties and calcium imaging of LS neurons. Here, we show a clearly compromised oxidative phosphorylation (OXPHOS) function in LS patient neurons. This is also the first report of electrophysiological studies performed on iPSC-derived neurons harboring an mtDNA mutation, which revealed that, in spite of having identical electrical properties, diseased neurons manifested mitochondrial dysfunction together with a diminished calcium buffering capacity. This could lead to an overload of cytoplasmic calcium concentration and the consequent cell death observed in patients. Importantly, our results highlight the importance of calcium homeostasis in LS pathology.

Published
2020

29. Alterations in cerebral and cardiac mitochondrial function in a porcine model of acute carbon monoxide poisoning

Author

Jang, David H., primary, Piel, Sarah, additional, Greenwood, John C., additional, Kelly, Matthew, additional, Mazandi, Vanessa M., additional, Ranganathan, Abhay, additional, Lin, Yuxi, additional, Starr, Jonathan, additional, Hallowell, Thomas, additional, Shofer, Frances S., additional, Baker, Wesley B., additional, Lafontant, Alec, additional, Andersen, Kristen, additional, Ehinger, Johannes K., additional, and Kilbaugh, Todd J., additional

Published
2021
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30. Mitochondrial Dysfunction and Calcium Dysregulation in Leigh Syndrome Induced Pluripotent Stem Cell Derived Neurons

Author

Galera-Monge, Teresa, primary, Zurita-Díaz, Francisco, additional, Canals, Isaac, additional, Grønning Hansen, Marita, additional, Rufián-Vázquez, Laura, additional, Ehinger, Johannes K., additional, Elmér, Eskil, additional, Martin, Miguel A., additional, Garesse, Rafael, additional, Ahlenius, Henrik, additional, and Gallardo, M. Esther, additional

Published
2020
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32. Neuroprotective Effects of Cyclosporine in a Porcine Pre-Clinical Trial of Focal Traumatic Brain Injury

Author

Karlsson, Michael, primary, Pukenas, Bryan, additional, Chawla, Sanjeev, additional, Ehinger, Johannes K., additional, Plyler, Ross, additional, Stolow, Madeline, additional, Gabello, Melissa, additional, Hugerth, Matilda, additional, Elmér, Eskil, additional, Hansson, Magnus J., additional, Margulies, Susan, additional, and Kilbaugh, Todd, additional

Published
2019
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34. Oxygen consumption in platelets as an adjunct diagnostic method for pediatric mitochondrial disease

Author

Westerlund, Emil, primary, Marelsson, Sigurður E, additional, Ehinger, Johannes K, additional, Sjövall, Fredrik, additional, Morota, Saori, additional, Åsander Frostner, Eleonor, additional, Oldfors, Anders, additional, Darin, Niklas, additional, Lundgren, Johan, additional, Hansson, Magnus J, additional, Fellman, Vineta, additional, and Elmér, Eskil, additional

Published
2017
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35. Cell-permeable succinate prodrugs bypass mitochondrial complex I deficiency

Author

Ehinger, Johannes K., primary, Piel, Sarah, additional, Ford, Rhonan, additional, Karlsson, Michael, additional, Sjövall, Fredrik, additional, Frostner, Eleonor Åsander, additional, Morota, Saori, additional, Taylor, Robert W., additional, Turnbull, Doug M., additional, Cornell, Clive, additional, Moss, Steven J., additional, Metzsch, Carsten, additional, Hansson, Magnus J., additional, Fliri, Hans, additional, and Elmér, Eskil, additional

Published
2016
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37. Oxygen consumption in platelets as an adjunct diagnostic method for pediatric mitochondrial disease

Author

Westerlund, Emil, Marelsson, Sigurður E, Ehinger, Johannes K, Sjövall, Fredrik, Morota, Saori, Åsander Frostner, Eleonor, Oldfors, Anders, Darin, Niklas, Lundgren, Johan, Hansson, Magnus J, Fellman, Vineta, and Elmér, Eskil

Abstract

BackgroundDiagnosing mitochondrial disease (MD) is a challenge. In addition to genetic analyses, clinical practice is to perform invasive procedures such as muscle biopsy for biochemical and histochemical analyses. Blood cell respirometry is rapid and noninvasive. Our aim was to explore its possible role in diagnosing MD.MethodsBlood samples were collected from 113 pediatric patients, for whom MD was a differential diagnosis. A respiratory analysis model based on ratios (independent of mitochondrial specific content) was derived from a group of healthy controls and tested on the patients. The diagnostic accuracy of platelet respirometry was evaluated against routine diagnostic investigation.ResultsMD prevalence in the cohort was 16%. A ratio based on the respiratory response to adenosine diphosphate in the presence of complex I substrates had 96% specificity for disease and a positive likelihood ratio of 5.3. None of the individual ratios had sensitivity above 50%, but a combined model had 72% sensitivity.ConclusionNormal findings of platelet respirometry are not able to rule out MD, but pathological results make the diagnosis more likely and could strengthen the clinical decision to perform further invasive analyses. Our results encourage further study into the role of blood respirometry as an adjunct diagnostic tool for MD.

Published
2018
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38. Mitochondrial physiology: Gnaiger Erich et al ― MitoEAGLE Task Group

Author

Gnaiger, Erich, Aasander Frostner, Eleonor, Abdul Karim, Norwahidah, Abdel-Rahman, Engy Ali, Abumrad, Nada A, Acuna-Castroviejo, Dario, Adiele, Reginald C, Ahn, Bumsoo, Alencar, MB, Ali, Sameh S, Almeida, Angeles, Alton, Lesley, Alves, Marco G, Amati, Francesca, Amoedo, Nivea Dias, Amorim, Ricardo, Anderson, Ethan J, Andreadou, Ioanna, Antunes, Diana, Arago, Marc, Aral, Cenk, Arandarcikaite, Odeta, Arias-Reyes, Christian, Armand, Anne-Sophie, Arnould, Thierry, Avram, Vlad Florian, Axelrod, Christopher L, Bairam, Aida, Bailey, Damian M, Bajpeyi, Sudip, Bajzikova, Martina, Bakker, Barbara M, Barlow, Jonathan, Bardal, Tora, Banni, A, Bastos Sant'Anna Silva, Ana Carolina, Batterson, Philip, Battino, Maurizio, Bazil, Jason, Beard, Daniel A, Beleza, Jorge, Bednarczyk, Piotr, Bello, Fiona, Ben-Shachar, Dorit, Bento Guida, Jose Freitas, Bergdahl, Andreas, Berge, Rolf K, Bergmeister, Lisa, Bernardi, Paolo, Berridge, Michael V, Bettinazzi, Stefano, Bishop, David, Blier, Pierre U, Blindheim, Dan Filip, Boardman, Neoma T, Boetker, Hans Erik, Borchard, Sabine, Boros, Mihaly, Borsheim, Elisabet, Borras, Consuelo, Borutaite, Vilma, Botella, Javier, Bouillaud, Frederic, Bouitbir, Jamal, Boushel, Robert C, Bovard, Josh, Bravo-Sagua, Roberto, Breton, Sophie, Brown, David A, Brown, Guy C, Brown, Robert A, Brozinick, Joseph T, Buettner, Garry R, Burtscher, Johannes, Bustos, Matilde, Calabria, Elisa, Calbet, Jose A, Calzia, Enrico, Cannon, Daniel T, Cano Sanchez, Maria, Canto Alvarez, Carles, Cardinale, D, Cardoso, Luiza Helena Daltro, Carvalho, Eugenia, Casado Pinna, Marta, Cassar, Samantha, Castelo, Maria P, Castilho, Roger F, Cavalcanti-de-Albuquerque, Joao Paulo, Cecatto, Cristiane, Celen, Murat C, Cervinkova, Zuzana, Chabi, Beatrice, Chakrabarti, Lisa, Chakrabarti, Sasanka, Chaurasia, Bhagirath, Chen, Quan, Chicco, Adam J, Chinopoulos, Christos, Chowdhury, Subir K, Cizmarova, Beata, Clementi, Emilio, Coen, Paul M, Cohen, Bruce H, Coker, Robert H, Collin-Chenot, Anne, Coughlan, Melinda T, Coxito, Petro, Crisostomo, Luis, Crispim, Marcell, Crossland, Hannah, Dahdah, Norma, Dalgaard, Louise T, Dambrova, Maija, Danhelovska, Tereza, Darveau, Charles A, Darwin, Paula M, Das, Anibh M, Dash, Ranjan K, Davidova, Eliska, Davis, Michael S, Dayanidhi, Sudarshan, De Bem, Andreza Fabro, De Goede, Paul, De Palma, Clara, De Pinto, Vito, Dela, F, Dembinska-Kiec, Aldona, Detraux, Damien, Devaux, Yvan, Di Marcello, Marco, Di Paola, Floriana Jessica, Dias, Candida, Dias, Tania R, Diederich, Marc, Distefano, Giovanna, Djafarzadeh, Siamak, Doermann, Niklas, Doerrier, Carolina, Dong, Lan-Feng, Donnelly, Chris, Drahota, Zdenek, Duarte, Filipe Valente, Dubouchaud, Herve, Duchen, Michael R, Dumas, Jean-Francois, Durham, William J, Dymkowska, Dorota, Dyrstad, Sissel E, Dyson, Alex, Dzialowski, Edward M, Eaton, Simon, Ehinger, Johannes, Elmer, Eskil, Endlicher, Rene, Engin, Ayse B, Escames, Germaine, Evinova, Andrea, Ezrova, Zuzana, Falk, Marni Joy, Fell, David A, Ferdinandy, Peter, Ferko, Miroslav, Fernandez-Ortiz, Marisol, Erika, Fernandez-Vizarra, Ferreira, Julio Cesar Batista, Ferreira, Rita, Ferri, Alessandra, Festuccia, WT, Fessel, Joshua P, Filipovska, Aleksandra, Fisar, Zdenek, Fischer, Christine, Fischer, Michael, Fisher, Gordon, Fisher, Joshua J, Fontanesi, Flavia, Forbes-Hernandez, Tamara Y, Ford, Ellen, Fornaro, Mara, Fuertes Agudo, Marina, Fulton, Montana, Galina, Antonio, Galkin, Alexander, Gallee, Leon, Galli, Gina L, Gama Perez, Pau, Gan, Zhenji, Ganetzky, Rebecca, Gao, Yun, Garcia, Geovana S, Garcia-Rivas, Gerardo, Garcia-Roves, Pablo Miguel, Garcia-Souza, Luiz Felipe, Garlid, Keith D, Garrabou, Gloria, Garten, Antje, Gastaldelli, Amalia, Gayen, Jiaur, Genders, Amanda J, Genova, Maria Luisa, Giampieri, Francesca, Glatz, Jan FC, Giovarelli, Matteo, Goikoetxea Usandizaga, Naroa, Goncalo Teixeira da Silva, Rui, Goncalves, Debora Farina, Gonzalez-Armenta, Jenny L, Gonzalez-Francesqua, A, Gonzalez-Freire, Marta, Gonzalo, Hugo, Goodpaster, Bret H, Gorr, Thomas A, Gourlay, Campbell W, Grams, Bente, Granata, Cesare, Grefte, Sander, Grilo, Luis, Guarch, Meritxell Espino, Gueguen, Naig, Gumeni, Sentiljana, Haas, Clarissa B, Haavik, Jan, Hachmo, Yafit, Haendeler, Judith, Haider, Markus, Hajrulahovic, Anesa, Hamann, Andrea, Han, Jin, Han, Woo Hyun, Hancock, Chad R, Hand, Steven C, Handl, Jiri, Hansikova, Hana, Hardee, Justin P, Hargreaves, Ian P, Harper, Mary Ellen, Harrison, David K, Hassan, Hazirah, Hatakova, Zuzana, Hausenloy, Derek J, Heales, Simon JR, Heiestad, Christina, Hellgren, Kim T, Henrique, Alexandrino, Hepple, Russell T, Hernansanz-Agustin, Pablo, Hewakapuge, Sudinna, Hickey, Anthony J, Ho, Dieu Hien, Hoehn, Kyle L, Hoel, Frederik, Holland, Olivia J, Holloway, Graham P, Holzner, Lorenz, Hoppel, Charles L, Hoppeler, H, Hoppel, Florian, Houstek, Josef, Huete-Ortega, Maria, Hyrossova, Petra, Iglesias-Gonzalez, Javier, Indiveri, Cesare, Irving, Brian A, Isola, Raffaella, Iyer, Shilpa, Jackson, Christophe B, Jadiya, Pooja, Jana, Prado Fabian, Jandeleit-Dahm, K, Jang, David H, Jang, Young C, Janowska, Joanna, Jansen, Kirsten, Jansen-Duerr, Pidder, Jansone, Baiba, Jarmuszkiewicz, Wieslawa, Jaskiewicz, Anna, Jaspers, Richard T, Jedlicka, Jan, Jerome, Estaquier, Jespersen, Nichlas R, Jha, Rajan K, Joseph, Vincent, Juhasz, Laszlo, Jurczak, Michael J, Jurk, Diana, Kaambre, Tuuli, Kaczor, Jan J, Kainulainen, Heikki, Kampa, Rafal Pawel, Kandel, Sunil M, Kane, Daniel A, Kapferer, Werner, Kapnick, Senta, Kappler, Lisa, Karabatsiakis, Alexander, Karavaeva, Iuliia, Karkucinska-Wieckowska, Agnieszka, Kaur, Sarbjot, Keijer, Jaap, Keller, Markus A, Keppner, Gloria, Khamoui, Andy V, Kidere, Dita, Kilbaugh, Todd, Kim, Hyoung Kyu, Kim, Julian KS, Kimoloi, Sammy, Klepinin, Aleksandr, Klepinina, Lyudmila, Klingenspor, Martin, Klocker, Helmut, Komlódi, Timea, Kolasa, Iris, Koopman, Werner JH, Kopitar-Jerala, Natasa, Kowaltowski, Alicia J, Kozlov, Andrey V, Krajcova, Adela, Krako Jakovljevic, Nina, Kristal, Bruce S, Krycer, Jamer R, Kuang, Jujiao, Kucera, Otto, Kuka, Janis, Kwak, Hyo Bum, Kwast, Kurt, Kwon, Oh Sung, Laasmaa, Martin, Labieniec-Watala, Magdalena, Lai, Nicola, Lalic, Nebojsa M, Land, John M, Lane, Nick, Laner, Verena, Lanza, Ian R, Laouafa, Sofien, Larsen, Steen, Larsen, Terje S, Lavery, Gareth G, Lazou, Antigone, Ledo, Ana Margarida, Lee, Hong Kyu, Leeuwenburgh, Christiaan, Lehti, Maarit, Lemieux, Helene, Lenaz, Giorgio, Lerfall, Jorgen, Li, Pingan A, Li Puma, Lance, Liang, Liping, Liepins, Edgars, Lin, Chien-Te, Liu, Jiankang, Lopez, Luis C, Lucchinetti, Eliana, Ma, Tao, Macedo, Maria P, Machado, Ivo F, Maciej, Sarah, MacMillan-Crow, Lee Ann, Magalhaes, Jose, Magri, Andrea, Majtnerova, Pavlina, Makarova, Elina, Makrecka-Kuka, Marina, Malik, Afshan N, Marcouiller, Francois, Marechal, Amandine, Markova, Michaela, Markovic, Ivanka, Martin, Daniel S, Martins, Ana Dias, Martins, Joao D, Maseko, Tumisang Edward, Maull, Felicia, Mazat, Jean Pierre, McKenna, Helen T, McKenzie, Matthew, McMillan, Duncan GG, McStay, Gavin P, Menze, Michael A, Mendham, Amy, Mercer, John R, Merz, Tamara, Messina, Angela, Meszaros, Andras T, Methner, Axel, Michalak, Slawomir, Mila Guasch, Maria, Minuzzi, Luciele M, Misirkic Marjanovic, Maja, Moellering, Douglas R, Moisoi, Nicoleta, Molina, Anthony JA, Montaigne, David, Moore, Anthony L, Moore, Christy, Moreau, Kerrie, Moreira, Bruno P, Moreno-Sanchez, Rafael, Mracek, Tomas, Muccini, Anna Maria, Muntane, Jordi, Muntean, Danina M, Murray, Andrew J, Musiol, Eva, Nabben, Miranda, Nair, K Sreekumaran, Nehlin, Jan O, Nemec, Michal, Nesci, Salvatore, Neufer, P Darrell, Neuzil, Jiri, Neviere, Remi, Newsom, Sean A., Norman, Jennifer, Nozickova, Katerina, Nunes, Sara, Nuoffer, Jean-Marc, O'Brien, Kristin, O'Brien, Katie A, O'Gorman, Donal, Olgar, Yusuf, Oliveira, Ben, Oliveira, Jorge, Oliveira, Marcus F, Oliveira, Marcos Tulio, Oliveira, Pedro F, Oliveira, Paulo J, Olsen, Rolf Erik, Orynbayeva, Zulfiya, Osiewacz, Heinz D, Paez, Hector, Pak, Youngmi K, Pallotta, 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Zikova, Alena, Zischka, Hans, Zorzano, Antonio, Zujovic, Tijana, Zurmanova, Jitka, Zvejniece, Liga, Lagarrigue, Sylviane, Munro, Daniel, Pereira, Susana, Laranjinha, Joäo, Hecker, Matthias, Jusic, Amela, Prigione, Alessandro, Sommer, Natascha, Weissig, Volkmar, Guida, Bento, G, John G, Jones, JG, AMS - Tissue Function & Regeneration, AMS - Rehabilitation & Development, Physiology, Mito-Eagle - Evolution-Age-Gender-Lifestyle-Environment (Mito-Eagle), Oroboros Instruments, Dynamique Musculaire et Métabolisme (DMEM), Université de Montpellier (UM)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), and Gnaiger Erich, Aasander Frostner Eleonor, Abdul Karim Norwahidah, Abdel-Rahman Engy Ali, Abumrad Nada A, Acuna-Castroviejo Dario, Adiele Reginald C, Ahn Bumsoo, Alencar Mayke Bezerra, Ali Sameh S, Almeida Angeles, Alton Lesley, Alves Marco G, Amati Francesca, Amoedo Nivea Dias, Amorim Ricardo, Anderson Ethan J, Andreadou Ioanna, Antunes Diana, Arago Marc, Aral Cenk, Arandarcikaite Odeta, Arias-Reyes Christian, Armand Anne-Sophie, Arnould Thierry, Avram Vlad F, Axelrod Christopher L, Bailey Damian M, Bairam Aida, Bajpeyi Sudip, Bajzikova Martina, Bakker Barbara M, Banni Aml, Bardal Tora, Barlow J, Bastos Sant'Anna Silva Ana Carolina, Batterson Philip M, Battino Maurizio, Bazil Jason N, Beard Daniel A, Bednarczyk Piotr, Beleza Jorge, Bello Fiona, Ben-Shachar Dorit, Bento Guida Jose Freitas, Bergdahl Andreas, Berge Rolf K, Bergmeister Lisa, Bernardi Paolo, Berridge Michael V, Bettinazzi Stefano, Bishop David J, Blier Pierre U, Blindheim Dan Filip, Boardman Neoma T, Boetker Hans Erik, Borchard Sabine, Boros Mihaly, Boersheim Elisabet, Borras Consuelo, Borutaite Vilma, Botella Javier, Bouillaud Frederic, Bouitbir Jamal, Boushel Robert C, Bovard Josh, Bravo-Sagua Roberto, Breton Sophie, Brown David A, Brown Guy C, Brown Robert Andrew, Brozinick Joseph T, Buettner Garry R, Burtscher Johannes, Bustos Matilde, Calabria Elisa, Calbet Jose AL, Calzia Enrico, Cannon Daniel T, Cano Sanchez Maria Consolacion, Canto Alvarez Carles, Cardinale Daniele A, Cardoso Luiza HD, Carvalho Eugenia, Casado Pinna Marta, Cassar Samantha, Castelo Rueda Maria Paulina, Castilho Roger F, Cavalcanti-de-Albuquerque Joao Paulo, Cecatto Cristiane, Celen Murat C, Cervinkova Zuzana, Chabi Beatrice, Chakrabarti Lisa, Chakrabarti Sasanka, Chaurasia Bhagirath, Chen Quan, Chicco Adam J, Chinopoulos Christos, Chowdhury Subir Kumar, Cizmarova Beata, Clementi Emilio, Coen Paul M, Cohen Bruce H, Coker Robert H, Collin-Chenot Anne, Coughlan Melinda T, Coxito Pedro, Crisostomo Luis, Crispim Marcell, Crossland Hannah, Dahdah Norma Ramon, Dalgaard Louise T, Dambrova Maija, Danhelovska Tereza, Darveau Charles-A, Darwin Paula M, Das Anibh Martin, Dash Ranjan K, Davidova Eliska, Davis Michael S, Dayanidhi Sudarshan, De Bem Andreza Fabro, De Goede Paul, De Palma Clara, De Pinto Vito, Dela Flemming, Dembinska-Kiec Aldona, Detraux Damian, Devaux Yvan, Di Marcello Marco, Di Paola Floriana Jessica, Dias Candida, Dias Tania R, Diederich Marc, Distefano Giovanna, Djafarzadeh Siamak, Doermann Niklas, Doerrier Carolina, Dong Lan-Feng, Donnelly Chris, Drahota Zdenek, Duarte Filipe Valente, Dubouchaud Herve, Duchen Michael R, Dumas Jean-Francois, Durham William J, Dymkowska Dorota, Dyrstad Sissel E, Dyson Alex, Dzialowski Edward M, Eaton Simon, Ehinger Johannes K, Elmer Eskil, Endlicher Rene, Engin Ayse Basak, Escames Germaine, Evinova Andrea, Ezrova Zuzana, Falk Marni J, Fell David A, Ferdinandy Peter, Ferko Miroslav, Fernandez-Ortiz Marisol, Fernandez-Vizarra Erika, Ferreira Julio Cesar B, Ferreira Rita Maria P, Ferri Alessandra, Fessel Joshua Patrick, Festuccia William T, Filipovska Aleksandra, Fisar Zdenek, Fischer Christine, Fischer Michael J, Fisher Gordon, Fisher Joshua J, Fontanesi Flavia, Forbes-Hernandez Tamara Y, Ford Ellen, Fornaro Mara, Fuertes Agudo Marina, Fulton Montana, Galina Antonio, Galkin Alexander, Gallee Leon, Galli Gina L J, Gama Perez Pau, Gan Zhenji, Ganetzky Rebecca, Gao Yun, Garcia Geovana S, Garcia-Rivas Gerardo, Garcia-Roves Pablo Miguel, Garcia-Souza Luiz F, Garlid Keith D, Garrabou Gloria, Garten Antje, Gastaldelli Amalia, Gayen Jiaur, Genders Amanda J, Genova Maria Luisa, Giampieri Francesca, Giovarelli Matteo, Glatz Jan FC, Goikoetxea Usandizaga Naroa, Goncalo Teixeira da Silva Rui, Goncalves Debora Farina, Gonzalez- Armenta Jenny L, Gonzalez-Franquesa Alba, Gonzalez-Freire Marta, Gonzalo Hugo, Goodpaster Bret H, Gorr Thomas A, Gourlay Campbell W, Grams Bente, Granata Cesare, Grefte Sander, Grilo Luis, Guarch Meritxell Espino, Gueguen Naig, Gumeni Sentiljana, Haas Clarissa, Haavik Jan, Hachmo Yafit, Haendeler Judith, Haider Markus, Hajrulahovic Anesa, Hamann Andrea, Han Jin, Han Woo Hyun, Hancock Chad R, Hand Steven C, Handl Jiri, Hansikova Hana, Hardee Justin P, Hargreaves Iain P, Harper Mary- Ellen, Harrison David K, Hassan Hazirah, Hatokova Zuzana, Hausenloy Derek J, Heales Simon JR, Hecker Matthias, Heiestad Christina, Hellgren Kim T, Henrique Alexandrino, Hepple Russell T, Hernansanz- Agustin Pablo, Hewakapuge Sudinna, Hickey Anthony J, Ho Dieu Hien, Hoehn Kyle L, Hoel Fredrik, Holland Olivia J, Holloway Graham P, Holzner Lorenz, Hoppel Charles L, Hoppel Florian, Hoppeler Hans, Houstek Josef, Huete-Ortega Maria, Hyrossova Petra, Iglesias-Gonzalez Javier, Indiveri Cesare, Irving Brian A, Isola Raffaella, Iyer Shilpa, Jackson Christopher Benjamin, Jadiya Pooja, Jana Prado Fabian, Jandeleit-Dahm Karin, Jang David H, Jang Young Charles, Janowska Joanna, Jansen Kirsten M, Jansen-Duerr Pidder, Jansone Baiba, Jarmuszkiewicz Wieslawa, Jaskiewicz Anna, Jaspers Richard T, Jedlicka Jan, Jerome Estaquier, Jespersen Nichlas Riise, Jha Rajan Kumar, Jones John G, Joseph Vincent, Juhasz Laszlo, Jurczak Michael J, Jurk Diana, Jusic Amela, Kaambre Tuuli, Kaczor Jan Jacek, Kainulainen Heikki, Kampa Rafal Pawel, Kandel Sunil Mani, Kane Daniel A, Kapferer Werner, Kapnick Senta, Kappler Lisa, Karabatsiakis Alexander, Karavaeva Iuliia, Karkucinska-Wieckowska Agnieszka, Kaur Sarbjot, Keijer Jaap, Keller Markus A, Keppner Gloria, Khamoui Andy V, Kidere Dita, Kilbaugh Todd, Kim Hyoung Kyu, Kim Julian KS, Kimoloi Sammy, Klepinin Aleksandr, Klepinina Lyudmila, Klingenspor Martin, Klocker Helmut, Kolassa Iris, Komlodi Timea, Koopman Werner JH, Kopitar-Jerala Natasa, Kowaltowski Alicia J, Kozlov Andrey V, Krajcova Adela, Krako Jakovljevic Nina, Kristal Bruce S, Krycer James R, Kuang Jujiao, Kucera Otto, Kuka Janis, Kwak Hyo Bum, Kwast Kurt E, Kwon Oh Sung, Laasmaa Martin, Labieniec-Watala Magdalena, Lagarrigue Sylviane, Lai Nicola, Lalic Nebojsa M, Land John M, Lane Nick, Laner Verena, Lanza Ian R, Laouafa Sofien, Laranjinha Joao, Larsen Steen, Larsen Terje S, Lavery Gareth G, Lazou Antigone, Ledo Ana Margarida, Lee Hong Kyu, Leeuwenburgh Christiaan, Lehti Maarit, Lemieux Helene, Lenaz Giorgio, Lerfall Joergen, Li Pingan Andy, Li Puma Lance, Liang Liping, Liepins Edgars, Lin Chien-Te, Liu Jiankang, Lopez Garcia Luis Carlos, Lucchinetti Eliana, Ma Tao, Macedo Maria Paula, Machado Ivo F, Maciej Sarah, MacMillan-Crow Lee Ann, Magalhaes Jose, Magri Andrea, Majtnerova Pavlina, Makarova Elina, Makrecka-Kuka Marina, Malik Afshan N, Marcouiller Francois, Marechal Amandine, Markova Michaela, Markovic Ivanka, Martin Daniel S, Martins Ana Dias, Martins Joao D, Maseko Tumisang Edward, Maull Felicia, Mazat Jean-Pierre, McKenna Helen T, McKenzie Matthew, McMillan Duncan GG, McStay Gavin P, Mendham Amy, Menze Michael A, Mercer John R, Merz Tamara, Messina Angela, Meszaros Andras, Methner Axel, Michalak Slawomir, Mila Guasch Maria, Minuzzi Luciele M, Misirkic Marjanovic Maja, Moellering Douglas R, Moisoi Nicoleta, Molina Anthony JA, Montaigne David, Moore Anthony L, Moore Christy, Moreau Kerrie, Moreira Bruno P, Moreno-Sanchez Rafael, Mracek Tomas, Muccini Anna Maria, Munro Daniel, Muntane Jordi, Muntean Danina M, Murray Andrew James, Musiol Eva, Nabben Miranda, Nair K Sreekumaran, Nehlin Jan O, Nemec Michal, Nesci Salvatore, Neufer P Darrell, Neuzil Jiri, Neviere Remi, Newsom Sean A, Norman Jennifer, Nozickova Katerina, Nunes Sara, Nuoffer Jean-Marc, O'Brien Kristin, O'Brien Katie A, O'Gorman Donal, Olgar Yusuf, Oliveira Ben, Oliveira Jorge, Oliveira Marcus F, Oliveira Marcos Tulio, Oliveira Pedro Fontes, Oliveira Paulo J, Olsen Rolf Erik, Orynbayeva Zulfiya, Osiewacz Heinz D, Paez Hector, Pak Youngmi Kim, Pallotta Maria Luigia, Palmeira Carlos, Parajuli Nirmala, Passos Joao F, Passrugger Manuela, Patel Hemal H, Pavlova Nadia, Pavlovic Kasja, Pecina Petr, Pedersen Tina M, Perales Jose Carles, Pereira da Silva Grilo da Silva Filomena, Pereira Rita, Pereira Susana P, Perez Valencia Juan Alberto, Perks Kara L, Pesta Dominik, Petit Patrice X, Pettersen Nitschke Ina Katrine, Pichaud Nicolas, Pichler Irene, Piel Sarah, Pietka Terri A, Pinho Sonia A, Pino Maria F, Pirkmajer Sergej, Place Nicolas, Plangger Mario, Porter Craig, Porter Richard K, Preguica Ines, Prigione Alessandro, Procaccio Vincent, Prochownik Edward V, Prola Alexandre, Pulinilkunnil Thomas, Puskarich Michael A, Puurand Marju, Radenkovic Filip, Ramzan Rabia, Rattan Suresh IS, Reano Simone, Reboredo-Rodriguez Patricia, Rees Bernard B, Renner-Sattler Kathrin, Rial Eduardo, Robinson Matthew M, Roden Michael, Rodrigues Ana Sofia, Rodriguez Enrique, Rodriguez-Enriquez Sara, Roesland Gro Vatne, Rohlena Jakub, Rolo Anabela Pinto, Ropelle Eduardo R, Roshanravan Baback, Rossignol Rodrigue, Rossiter Harry B, Rousar Tomas, Rubelj Ivica, Rybacka-Mossakowska Joanna, Saada Reisch Ann, Safaei Zahra, Salin Karine, Salvadego Desy, Sandi Carmen, Saner Nicholas, Santos Diana, Sanz Alberto, Sardao Vilma, Sarlak Saharnaz, Sazanov Leonid A, Scaife Paula, Scatena Roberto, Schartner Melanie, Scheibye-Knudsen Morten, Schilling Jan M, Schlattner Uwe, Schmitt Sabine, Schneider Gasser Edith Mariane, Schoenfeld Peter, Schots Pauke C, Schulz Rainer, Schwarzer Christoph, Scott Graham R, Selman Colin, Sendon Pamella Marie, Shabalina Irina G, Sharma Pushpa, Sharma Vipin, Shevchuk Igor, Shirazi Reza, Shiroma Jonathan G, Siewiera Karolina, Silber Ariel M, Silva Ana Maria, Sims Carrie A, Singer Dominique, Singh Brijesh Kumar, Skolik Robert A, Smenes Benedikte Therese, Smith James, Soares Felix Alexandre Antunes, Sobotka Ondrej, Sokolova Inna, Solesio Maria E, Soliz Jorge, Sommer Natascha, Sonkar Vijay K, Sova Marina, Sowton Alice P, Sparagna Genevieve C, Sparks Lauren M, Spinazzi Marco, Stankova Pavla, Starr Jonathan, Stary Creed, Stefan Eduard, Stelfa Gundega, Stepto Nigel K, Stevanovic Jelena, Stiban Johnny, Stier Antoine, Stocker Roland, Storder Julie, Sumbalova Zuzana, Suomalainen Anu, Suravajhala Prashanth, Svalbe Baiba, Swerdlow Russell H, Swiniuch Daria, Szabo Ildiko, Szewczyk Adam, Szibor Marten, Tanaka Masashi, Tandler Bernard, Tarnopolsky Mark A, Tausan Daniel, Tavernarakis Nektarios, Teodoro Joao Soeiro, Tepp Kersti, Thakkar Himani, Thapa Maheshwor, Thyfault John P, Tomar Dhanendra, Ton Riccardo, Torp May-Kristin, Torres-Quesada Omar, Towheed Atif, Treberg Jason R, Tretter Laszlo, Trewin Adam J, Trifunovic Aleksandra, Trivigno Catherine, Tronstad Karl Johan, Trougakos Ioannis P, Truu Laura, Tuncay Erkan, Turan Belma, Tyrrell Daniel J, Urban Tomas, Urner Sofia, Valentine Joseph Marco, Van Bergen Nicole J, Van der Ende Miranda, Varricchio Frederick, Vaupel Peter, Vella Joanna, Vendelin Marko, Vercesi Anibal E, Verdaguer Ignasi Bofill, Vernerova Andrea, Victor Victor Manuel, Vieira Ligo Teixeira Camila, Vidimce Josif, Viel Christian, Vieyra Adalberto, Vilks Karlis, Villena Josep A, Vincent Vinnyfred, Vinogradov Andrey D, Viscomi Carlo, Vitorino Rui Miguel Pinheiro, Vlachaki Walker Julia, Vogt Sebastian, Volani Chiara, Volska Kristine, Votion Dominique-Marie, Vujacic-Mirski Ksenija, Wagner Brett A, Ward Marie Louise, Warnsmann Verena, Wasserman David H, Watala Cezary, Wei Yau-Huei, Weinberger Klaus M, Weissig Volkmar, White Sarah Haverty, Whitfield Jamie, Wickert Anika, Wieckowski Mariusz R, Wiesner Rudolf J, Williams Caroline M, Winwood-Smith Hugh, Wohlgemuth Stephanie E, Wohlwend Martin, Wolff Jonci Nikolai, Wrutniak-Cabello Chantal, Wuest Rob CI, Yokota Takashi, Zablocki Krzysztof, Zanon Alessandra, Zanou Nadege, Zaugg Kathrin, Zaugg Michael, Zdrazilova Lucie, Zhang Yong, Zhang Yizhu, Zikova Alena, Zischka Hans, Zorzano Antonio, Zujovic Tijana, Zurmanova Jitka, Zvejniece Liga

Subjects
uncoupling, MitoPedia: Respiratory states, SI - The International System of Units, IUPAC, Coupling control, Mitochondrial preparations, Protonmotive force, Uncoupling, Oxidative phosphorylation, Phosphorylation efficiency, Electron transfer-pathway, LEAK-respiration, Residual oxygen consumption, Normalization of rate, Flow, Flux, Flux control ratio, Mitochondrial marker, Cell count, Oxygen, [SDV]Life Sciences [q-bio], coupling control, protonmotive force, oxidative phosphorylation, mitochondrial respiratory control, State 4, electron transfer, State 2, State 3, Mitochondrial physiology, residual oxygen consumption, flux, normalization, ion leak and slip compensatory state, efficiency, electron transfer system, flow, mitochondrial physiology, oxygen, mitochondrial preparations, proton leak
Abstract

As the knowledge base and importance of mitochondrial physiology to evolution, health and diseaseexpands, the necessity for harmonizing the terminologyconcerning mitochondrial respiratory states and rates has become increasingly apparent. Thechemiosmotic theoryestablishes the mechanism of energy transformationandcoupling in oxidative phosphorylation. Theunifying concept of the protonmotive force providestheframeworkfordeveloping a consistent theoretical foundation ofmitochondrial physiology and bioenergetics.We followthe latest SI guidelines and those of the International Union of Pure and Applied Chemistry(IUPAC)onterminology inphysical chemistry, extended by considerationsofopen systems and thermodynamicsof irreversible processes.Theconcept-driven constructive terminology incorporates the meaning of each quantity and alignsconcepts and symbols withthe nomenclature of classicalbioenergetics. We endeavour to provide a balanced view ofmitochondrial respiratory control and a critical discussion on reporting data of mitochondrial respiration in terms of metabolic flows and fluxes.Uniform standards for evaluation of respiratory states and rates will ultimatelycontribute BEC 2020.1 doi:10.26124/bec:2020-0001.v1www.bioenergetics-communications.org3of 44to reproducibility between laboratories and thussupport the development of datarepositoriesof mitochondrial respiratory function in species, tissues, and cells.Clarity of concept and consistency of nomenclature facilitate effective transdisciplinary communication, education, and ultimately further discovery.

Published
2020
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39. Emerging cellular-based therapies in carbon monoxide poisoning.

Author

Jang DH, Piel S, Greenwood JC, Ehinger JK, and Kilbaugh TJ

Subjects
Animals, Humans, Mitochondria drug effects, Mitochondria metabolism, Prodrugs pharmacology, Carbon Monoxide toxicity, Carbon Monoxide Poisoning drug therapy, Cell- and Tissue-Based Therapy methods, Succinic Acid pharmacology
Abstract

Carbon monoxide (CO) is an odorless and colorless gas with multiple sources that include engine exhaust, faulty furnaces, and other sources of incomplete combustion of carbon compounds such as house fires. The most serious complications for survivors of consequential CO exposure are persistent neurological sequelae occurring in up to 50% of patients. CO inhibits mitochondrial respiration by specifically binding to the heme a 3 in the active site of CIV-like hydrogen sulfide, cyanide, and phosphides. Although hyperbaric oxygen remains the cornerstone for treatment, it has variable efficacy requiring new approaches to treatment. There is a paucity of cellular-based therapies in the area of CO poisoning, and there have been recent advancements that include antioxidants and a mitochondrial substrate prodrug. The succinate prodrugs derived from chemical modification of succinate are endeavored to enhance delivery of succinate to cells, increasing uptake of succinate into the mitochondria, and providing metabolic support for cells. The therapeutic intervention of succinate prodrugs is thus potentially applicable to patients with CO poisoning via metabolic support for fuel oxidation and possibly improving efficacy of HBO therapy.

Published
2021
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40. Neuroprotective Effects of Cyclosporine in a Porcine Pre-Clinical Trial of Focal Traumatic Brain Injury.

Author

Karlsson M, Pukenas B, Chawla S, Ehinger JK, Plyler R, Stolow M, Gabello M, Hugerth M, Elmér E, Hansson MJ, Margulies S, and Kilbaugh T

Abstract

Mitochondrial dysfunction is thought to be a hallmark of traumatic brain injury (TBI) and plays a pivotal role in the resulting cellular injury. Cyclophilin D-mediated activation of the mitochondrial permeability transition pore has been suggested to contribute to this secondary injury cascade. Cyclosporine possesses neuroprotective properties that have been attributed to the desensitization of mitochondrial permeability transition pore activation. In vivo animal experiments have demonstrated neuroprotective effects of cyclosporine in more than 20 independent experimental studies in a multitude of different experimental models. However, the majority of these studies have been carried out in rodents. The aim of the present study was to evaluate the efficacy of a novel and cremophor/kolliphor EL-free lipid emulsion formulation of cyclosporine in a translational large animal model of TBI. A mild-to-moderate focal contusion injury was induced in piglets using a controlled cortical impact device. After initial step-wise analyses of pharmacokinetics and comparing with exposure of cyclosporine in clinical TBI trials, a 5-day dosing regimen with continuous intravenous cyclosporine infusion (20 mg/kg/day) was evaluated in a randomized and blinded placebo-controlled setting. Cyclosporine reduced the volume of parenchymal injury by 35%, as well as improved markers of neuronal injury, as measured with magnetic resonance spectroscopic imaging. Further, a consistent trend toward positive improvements in brain metabolism and mitochondrial function was observed in the pericontusional tissue. In this study, we have demonstrated efficacy using a novel cyclosporine formulation in clinically relevant and translatable outcome metrics in a large animal model of focal TBI.

Published
2018
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41. Mitochondrial respiration in human viable platelets--methodology and influence of gender, age and storage.

Author

Sjövall F, Ehinger JK, Marelsson SE, Morota S, Frostner EA, Uchino H, Lundgren J, Arnbjörnsson E, Hansson MJ, Fellman V, and Elmér E

Subjects
Adult, Age Factors, Aged, Child, Child, Preschool, Cytological Techniques methods, Female, Humans, Infant, Male, Middle Aged, Sex Factors, Specimen Handling methods, Young Adult, Blood Platelets metabolism, Cell Respiration, Mitochondria metabolism
Abstract

Studying whole cell preparations with intact mitochondria and respiratory complexes has a clear benefit compared to isolated or disrupted mitochondria due to the dynamic interplay between mitochondria and other cellular compartments. Platelet mitochondria have a potential to serve as a source of human viable mitochondria when studying mitochondrial physiology and pathogenic mechanisms, as well as for the diagnostics of mitochondrial diseases. The objective of the present study was to perform a detailed evaluation of platelet mitochondrial respiration using high-resolution respirometry. Further, we aimed to explore the limits of sample size and the impact of storage as well as to establish a wide range of reference data from different pediatric and adult cohorts. Our results indicate that platelet mitochondria are well suited for ex-vivo analysis with the need for minute sample amounts and excellent reproducibility and stability., (2012 Elsevier B.V. All rights reserved)

Published
2013
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