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Supercomplexes in the respiratory chains of yeast and mammalian mitochondriaH Schagger
Zentrum der Biologischen Chemie, Universitatsklinikum Frankfurt, D 60590 Frankfurt, Germany
EMBO J 19:1777-83. 2000..A fraction of total bovine ATP synthase (complex V) was isolated in dimeric form, suggesting that a dimeric state is not limited to S.cerevisiae, but also exists in mammalian mitochondria...
Calpain inhibitor (BSF 409425) diminishes ischemia/reperfusion-induced damage of rabbit heart mitochondriaSonata Trumbeckaite
, , D-06097 Halle/Saale, Germany
Biochem Pharmacol 65:911-6. 2003..of a new developed calpain inhibitor (CI) BSF 409425 on the ischemia/reperfusion-induced damage of rabbit heart mitochondria was investigated...
Mitochondrial permeability transition pore opening during myocardial reperfusion--a target for cardioprotectionAndrew P Halestrap
Department of Biochemistry and The Bristol Heart Institute, University of Bristol, Bristol BS8 1TD, UK
Cardiovasc Res 61:372-85. 2004..However, only if subsequent MPTP closure occurs will ATP levels be maintained, ensuring that cell death continues down an apoptotic, rather than a necrotic, pathway...
Sevoflurane preconditioning limits intracellular/mitochondrial Ca2+ in ischemic newborn myocardiumHong Liu
Department of Anesthesiology and Pain Medicine, University of California Davis Medical Center, 4150 V St, Suite 1200, Sacramento, CA 95817, USA
Anesth Analg 101:349-55, table of contents. 2005..Mitochondrial K(ATP) channel blockade attenuates the SPC effect during I/R, suggesting that these channels are involved in the protective effects of SPC in the newborn...
Role of glycogen synthase kinase-3beta in cardioprotectionMagdalena Juhaszova
Laboratory of Cardiovascular Science, Gerontology Research Center, Box 13, National Institute on Aging, NIH, Baltimore, Maryland 21224 6825, USA
Circ Res 104:1240-52. 2009....
Mitochondrial energetics in the heart in obesity-related diabetes: direct evidence for increased uncoupled respiration and activation of uncoupling proteinsSihem Boudina
Division of Endocrinology, Metabolism, and Diabetes, Program in Human Molecular Biology and Genetics, University of Utah School of Medicine, Salt Lake City, Utah 84112, USA
Diabetes 56:2457-66. 2007..Mitochondrial uncoupling has been proposed to contribute to these metabolic abnormalities but has not been directly demonstrated...
Exercise training induces respiratory substrate-specific decrease in Ca2+-induced permeability transition pore opening in heart mitochondriaMariannick Marcil
, , PO Box 6128 Centre-Ville, Montreal, PQ, Canada H3C 3J7
Am J Physiol Heart Circ Physiol 290:H1549-57. 2006..to determine whether regular exercise (treadmill running, 10 wk) alters the susceptibility of rat isolated heart mitochondria to Ca(2+)-induced permeability transition pore (PTP) opening and whether this could be associated with ..
The mechanism of superoxide production by NADH:ubiquinone oxidoreductase (complex I) from bovine heart mitochondriaLothar Kussmaul
Medical Research Council Dunn Human Nutrition Unit, Wellcome Trust/Medical Research Council Building, Hills Road, Cambridge CB2 2XY, United Kingdom
Proc Natl Acad Sci U S A 103:7607-12. 2006..we describe the kinetic and molecular mechanism of superoxide production by complex I isolated from bovine heart mitochondria and confirm that it produces predominantly superoxide, not hydrogen peroxide...
Heart mitochondria: gates of life and deathAsa B Gustafsson
BioScience Center San Diego State University 5500 Campanile Drive San Diego, CA 92182 4650, USA
Cardiovasc Res 77:334-43. 2008..In this review, we discuss the role of mitochondria in the control of cell death in cardiac myocytes...
Sanglifehrin A acts as a potent inhibitor of the mitochondrial permeability transition and reperfusion injury of the heart by binding to cyclophilin-D at a different site from cyclosporin ASamantha J Clarke
Department of Biochemistry, School of Medical Sciences, University of Bristol, Bristol BS8 1TD, United Kingdom
J Biol Chem 277:34793-9. 2002..Because SfA does not inhibit calcineurin activity, our data suggest that it may be more desirable than CsA for protecting tissues recovering from ischemic episodes and for studying the role of the MPTP in cell death...
Mitochondrial DNA mutations, oxidative stress, and apoptosis in mammalian agingG C Kujoth
Departments of Genetics and Medical Genetics, University of Wisconsin, Madison, WI 53706, USA
Science 309:481-4. 2005..The levels of apoptotic markers were also found to increase during aging in normal mice. Thus, accumulation of mtDNA mutations that promote apoptosis may be a central mechanism driving mammalian aging...
Ischemic defects in the electron transport chain increase the production of reactive oxygen species from isolated rat heart mitochondriaQun Chen
Department of Medicine, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
Am J Physiol Cell Physiol 294:C460-6. 2008..Thus ischemic damage to the ETC increased both the capacity and the net production of H(2)O(2) from complex I and complex III and sets the stage for an increase in ROS production during reperfusion as a mechanism of cardiac injury...
Biochemical dysfunction in heart mitochondria exposed to ischaemia and reperfusionGiancarlo Solaini
Scuola Superiore di Studi Universitari e di Perfezionamento S. Anna, Classe Accademica di Scienze Sperimentali, , 56127 Pisa, Italy
Biochem J 390:377-94. 2005..Finally, we summarize the metabolic and pharmacological interventions that have been used to alleviate the effects of ischaemic injury, highlighting the value of these or related interventions in possible therapeutics...
Molecular and cellular basis of the aetiology and management of diabetic cardiomyopathy: a short reviewErnest Adeghate
Department of Anatomy, Faculty of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
Mol Cell Biochem 261:187-91. 2004....
Identification of a ryanodine receptor in rat heart mitochondriaG Beutner
Department of Pharmacology and Physiology, University of Rochester, School of Medicine and Dentistry, Rochester, New York 14642, USA
J Biol Chem 276:21482-8. 2001..In the presence of ryanodine, Ca(2+) uptake into isolated heart mitochondria is suppressed. In addition, ryanodine inhibited mitochondrial swelling induced by Ca(2+) overload...
Aconitase and ATP synthase are targets of malondialdehyde modification and undergo an age-related decrease in activity in mouse heart mitochondriaConnie S Yarian
Department of Molecular Pharmacology and Toxicology, University of Southern California, 1985 Zonal Avenue, Los Angeles, CA 90033, USA
Biochem Biophys Res Commun 330:151-6. 2005..The biological consequences of an age-related decrease in aconitase and ATP synthase activities may contribute to the decline in mitochondrial bioenergetics evident during aging...
Role of the mitochondrial permeability transition in myocardial diseaseJames N Weiss
Cardiovascular Research Laboratory, Department of Medicine Cardiology, David Geffen School of Medicine at UCLA, Los Angeles, Calif 90095 1760, USA
Circ Res 93:292-301. 2003..Investigations into this area are beginning to unravel some of the mechanistic links between cardioprotective signaling and mitochondria...
Hyperglycemia-induced apoptosis in mouse myocardium: mitochondrial cytochrome C-mediated caspase-3 activation pathwayLu Cai
Department of Medicine, University of Louisville, Louisville, Kentucky, USA
Diabetes 51:1938-48. 2002..Hyperglycemia-induced myocardial apoptosis is mediated, at least in part, by activation of the cytochrome c-activated caspase-3 pathway, which may be triggered by ROS derived from high levels of glucose...
The phosphorylation of subunits of complex I from bovine heart mitochondriaRuming Chen
Medical Research Council Dunn Human Nutrition Unit, Hills Road, Cambridge CB2 2XY, UK
J Biol Chem 279:26036-45. 2004In bovine heart mitochondria and in submitochondrial particles, membrane-associated proteins with apparent molecular masses of 18 and 10 kDa become strongly radiolabeled by [(32)P]ATP in a cAMP-dependent manner...
Low rates of hydrogen peroxide production by isolated heart mitochondria associate with long maximum lifespan in vertebrate homeothermsAdrian J Lambert
Medical Research Council, Dunn Human Nutrition Unit, Hills Road, Cambridge CB2 2XY, UK
Aging Cell 6:607-18. 2007..We investigated this correlation by comparing rates of hydrogen peroxide (H(2)O(2)) production by heart mitochondria isolated from groups or pairs of species selected to have very different maximum lifespans but similar body ..
The flavoprotein subcomplex of complex I (NADH:ubiquinone oxidoreductase) from bovine heart mitochondria: insights into the mechanisms of NADH oxidation and NAD+ reduction from protein film voltammetryChérise D Barker
Medical Research Council Dunn Human Nutrition Unit, Wellcome Trust MRC Building, Hills Road, Cambridge CB2 2XY, UK
Biochemistry 46:3454-64. 2007Complex I (NADH:ubiquinone oxidoreductase) from bovine heart mitochondria contains 45 different subunits and nine redox cofactors...
Effect of the multitargeted tyrosine kinase inhibitors imatinib, dasatinib, sunitinib, and sorafenib on mitochondrial function in isolated rat heart mitochondria and H9c2 cellsYvonne Will
Exploratory Safety Differentiation, Pfizer, Inc, Groton, Connecticut 06340, USA
Toxicol Sci 106:153-61. 2008..Furthermore, we measured respiratory capacity of isolated rat heart mitochondria in the presence of the four kinase inhibitors and examined their effect on each of the oxidative ..
Effects of desmin gene knockout on mice heart mitochondriaM Linden
Groupe de Biologie des Interactions Cellulaires, UMR CNRS 6558, Poitiers, France
J Bioenerg Biomembr 33:333-41. 2001..1997). In the present study we have isolated heart mitochondria from desmin null (D-/-) and control (D+/+) mice, and analyzed their composition by SDS-PAGE, immunoblotting, ..
Diabetic cardiomyopathy revisitedSihem Boudina
Division of Endocrinology, Metabolism and Diabetes and Program in Human Molecular Biology and Genetics, University of Utah School of Medicine, Salt Lake City 84112, USA
Circulation 115:3213-23. 2007..This review discusses the latest findings in diabetic humans and in animal models and reviews emerging new mechanisms that may be involved in the development and progression of cardiac dysfunction in diabetes...
Overexpression of glutaredoxin-2 reduces myocardial cell death by preventing both apoptosis and necrosisNorbert Nagy
Cardiovascular Research Center, University of Connecticut, School of Medicine, Farmington, CT 06030 1110, USA
J Mol Cell Cardiol 44:252-60. 2008..The results indicated a crucial role of mitochondrial Glrx2 in cardioprotection...
Release of cytochrome c from heart mitochondria is induced by high Ca2+ and peroxynitrite and is responsible for Ca(2+)-induced inhibition of substrate oxidationV Borutaite
Institute for Biomedical Research, Kaunas Medical University, Lithuania
Biochim Biophys Acta 1453:41-8. 1999..and other inducers of mitochondrial permeability transition cause the release of cytochrome c from isolated heart mitochondria. We found that 5 microM free Ca2+ induced changes in oxidative phosphorylation system similar to ischaemic ..
Peroxisome proliferator-activated receptor gamma coactivator-1 promotes cardiac mitochondrial biogenesisJ J Lehman
Department of Medicine, and Department of Pathology, Center for Cardiovascular Research, Washington University School of Medicine, St Louis, Missouri 63110, USA
J Clin Invest 106:847-56. 2000..These results identify PGC-1 as a critical regulatory molecule in the control of cardiac mitochondrial number and function in response to energy demands...
Bovine complex I is a complex of 45 different subunitsJoe Carroll
Dunn Human Nutrition Unit, The Medical Research Council, Hills Road, Cambridge CB2 2XY, United Kingdom
J Biol Chem 281:32724-7. 2006..Thus, the subunit composition of bovine complex I has been established. It is a complex of 45 different proteins plus non-covalently bound FMN and eight iron-sulfur clusters...
Ischaemic preconditioning inhibits opening of mitochondrial permeability transition pores in the reperfused rat heartSabzali A Javadov
Department of Biochemistry, University of Bristol, Bristol BS8 1TD, UK
J Physiol 549:513-24. 2003..Our data suggest that protection from reperfusion injury is better achieved by reducing factors that induce MPTP opening than by inhibiting the MPTP directly...
Effects of NO on mitochondrial function in cardiomyocytes: Pathophysiological relevanceSean M Davidson
The Hatter Cardiovascular Institute, Department of Medicine, Royal Free and University College Medical School, 67 Chenies Mews, University College Hospital, London WC1E 6HX, United Kingdom
Cardiovasc Res 71:10-21. 2006....
Role of apoptosis in cardiovascular diseaseYoungil Lee
BioScience Center, San Diego State University, San Diego, CA 92182 4650, USA
Apoptosis 14:536-48. 2009..This review provides a current overview of the evidence of apoptosis in cardiovascular diseases and discusses the molecular pathways involved in cardiac myocyte apoptosis...
Changes in mitochondrial dynamics during ceramide-induced cardiomyocyte early apoptosisValentina Parra
Centro FONDAP Estudios Moleculares de la Celula, Universidad de Chile, Olivos 1007, Santiago 8380492, Chile
Cardiovasc Res 77:387-97. 2008..This process is associated with cell death. We investigated whether activation of apoptosis with ceramides affects mitochondrial dynamics and promotes mitochondrial fission in cardiomyocytes...
Low complex I content explains the low hydrogen peroxide production rate of heart mitochondria from the long-lived pigeon, Columba liviaAdrian J Lambert
Medical Research Council Mitochondrial Biology Unit, Hills Road, Cambridge, CB2 0XY, UK
Aging Cell 9:78-91. 2010..this report, we investigate the underlying biochemical basis of the low hydrogen peroxide production rate of heart mitochondria from a long-lived species (pigeon) compared with a short-lived species with similar body mass (rat)...
Potassium-specific effects of levosimendan on heart mitochondriaDalia M Kopustinskiene
Institute for Biomedical Research, Kaunas University of Medicine, Kaunas, Lithuania
Biochem Pharmacol 68:807-12. 2004..in mitochondrial inner membrane permeability for potassium by registering changes in membrane potential of heart mitochondria, oxidizing endogenous substrates...
Protection of cardiac mitochondria by overexpression of MnSOD reduces diabetic cardiomyopathyXia Shen
Department of Pathology, University of Washington, Seattle, USA
Diabetes 55:798-805. 2006..These results showed that elevating MnSOD provided extensive protection to diabetic mitochondria and provided overall protection to the diabetic heart...
Determination of the oxidation states of manganese in brain, liver, and heart mitochondriaThomas E Gunter
Department of Biochemistry and Biophysics, University of Rochester, School of Medicine and Dentistry, Rochester, New York 14642, USA
J Neurochem 88:266-80. 2004..While the presence of Mn3+ complexes cannot be proven in the spectrum of endogenous mitochondrial manganese, the shape of this spectrum could suggest the presence of Mn3+ near the limit of detection, probably as MnSOD...
Sodium tanshinone IIA sulfonate mediates electron transfer reaction in rat heart mitochondriaGuangyin Zhou
Laboratory of Visual Information Processing, Department of Molecular and Cell Biophysics, Institute of Biophysics, Academia Sinica, Beijing 100101, PR China
Biochem Pharmacol 65:51-7. 2003..paper, an electron transfer reaction mediated by sodium tanshinone IIA sulfonate (STS) was studied in rat heart mitochondria. It was found that STS could stimulate mitochondrial NADH oxidation dose-dependently and partly restore NADH ..
Dang-Gui Buxue Tang produces a more potent cardioprotective effect than its component herb extracts and enhances glutathione status in rat heart mitochondria and erythrocytesDuncan H F Mak
Department of Biochemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
Phytother Res 20:561-7. 2006..The measurement of RBC glutathione status may serve as a useful index for the antioxidant effect produced by DBT treatment in human subjects...
Roles of mitochondrial ATP-sensitive K channels and PKC in anti-infarct tolerance afforded by adenosine A1 receptor activationT Miura
Second Department of Internal Medicine, Sapporo Medical University School of Medicine, Japan
J Am Coll Cardiol 35:238-45. 2000..This study intended to assess the role of mitochondrial ATP-sensitive potassium (mitoK ATP) channels and the sequence of signal transduction with protein kinase C (PKC) and adenosine A1 receptors in rabbits...
Effects of thyroid state on H2O2 production by rat heart mitochondria: sites of production with complex I- and complex II-linked substratesP Venditti
Dipartimento di Fisiologia Generale ed Ambientale, , Italy
Horm Metab Res 35:55-61. 2003..to determine possible effects of altered thyroid states on rates and sites of H 2 O 2 production by rat heart mitochondria. Rates of O 2 consumption and H 2 O 2 release, capacities to remove the peroxide, lipid peroxidation, ..
Seasonal variations in properties of healthy and diabetic rat heart mitochondria: Mg2+-ATPase activity, content of conjugated dienes and membrane fluidityJ Mujkosová
Institute for Heart Research, Slovak Academy of Sciences, Bratislava, Slovakia
Physiol Res 57:S75-82. 2008Our previous preliminary results pointed to possible seasonal variations in Mg2+-ATPase activity of rat heart mitochondria (MIT)...
Pharmacological and physiological stimuli do not promote Ca(2+)-sensitive K+ channel activity in isolated heart mitochondriaDouglas V Cancherini
Departamento de Bioquimica, Instituto de Quimica, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
Cardiovasc Res 73:720-8. 2007..NS-1619 is cardioprotective, leading to the assumption that this effect is related to the opening of mitoK(Ca) channels. Here, we show several weaknesses in this hypothesis...
Investigation of the mechanism of proton translocation by NADH:ubiquinone oxidoreductase (complex I) from bovine heart mitochondria: does the enzyme operate by a Q-cycle mechanism?Steven Sherwood
Medical Research Council Dunn Human Nutrition Unit, Wellcome Trust MRC Building, Hills Road, Cambridge CB2 2XY, UK
Biochem J 400:541-50. 2006..Here, we describe experiments to determine whether complex I, isolated from bovine heart mitochondria, operates via a Q-cycle mechanism analogous to that observed in the cytochrome bc1 complex...
The amino acid sequence of GTP:AMP phosphotransferase from beef-heart mitochondria. Extensive homology with cytosolic adenylate kinaseB Wieland
Eur J Biochem 143:331-9. 1984The amino acid sequence of GTP:AMP phosphotransferase (AK3) from beef-heart mitochondria has been determined, except for one segment of about 33 residues in the middle of the polypeptide chain...
Regucalcin increases Ca2+-ATPase activity in the heart mitochondria of normal and regucalcin transgenic ratsTania Akhter
Laboratory of Endocrinology and Molecular Metabolism, Graduate School of Nutritional Sciences, University of Shizuoka, Shizuoka 422 8526, Japan
Int J Mol Med 18:171-6. 2006..a regulatory protein in intracellular signaling system, in the regulation of Ca2+-ATPase activity in rat heart mitochondria was investigated...
Generation of superoxide-radical by the NADH:ubiquinone oxidoreductase of heart mitochondriaA D Vinogradov
Department of Biochemistry, Faculty of Biology, Lomonosov Moscow State University, Moscow 119992, Russia
Biochemistry (Mosc) 70:120-7. 2005..One site (F) serves as an entry for the NADH oxidation and the other one (R) serves as an exit during either the succinate-supported NAD+ reduction or superoxide generation or NADH-ferricyanide reductase reaction...
Failure to precondition pathological human myocardiumS Ghosh
Department of Surgery, University Hospitals Leicester, United Kingdom
J Am Coll Cardiol 37:711-8. 2001....
Cardiac mitochondrial damage and biogenesis in a chronic model of type 1 diabetesXia Shen
Dept. of Pharmacology and Toxicology, University of Louisville, 570 S. Preston St, Suite 304, Louisville, KY 40202, USA
Am J Physiol Endocrinol Metab 287:E896-905. 2004..Taken together, these results show that mitochondria are a primary target in the diabetic heart, probably due to oxidative stress, and that this damage coincides with and may stimulate mitochondrial biogenesis...
Attenuation by metallothionein of early cardiac cell death via suppression of mitochondrial oxidative stress results in a prevention of diabetic cardiomyopathyLu Cai
Department of Medicine, The University of Louisville, Louisville, Kentucky, USA
J Am Coll Cardiol 48:1688-97. 2006..We aimed to test whether attenuation of early-phase cardiac cell death can prevent diabetic cardiomyopathy...
Mitochondria and ischemia-reperfusion injury of the heart: fixing a holeFabio Di Lisa
Dipartimento di Chimica Biologica, Universita di Padova, Viale G Colombo 3, 35121 Padova
Cardiovasc Res 70:191-9. 2006..Here, we discuss our current understanding of the structure and function of PTP in the context of heart injury caused by ischemia and reperfusion...
Postconditioning prevents reperfusion injury by activating delta-opioid receptorsYoungho Jang
Department of Anesthesiology, The University of North Carolina at Chapel Hill, North Carolina 27599, USA
Anesthesiology 108:243-50. 2008..The authors hypothesized that postconditioning stimulates opioid receptors, which in turn protect the heart from reperfusion injury by targeting the mPTP...
Mn porphyrin-based superoxide dismutase (SOD) mimic, MnIIITE-2-PyP5+, targets mouse heart mitochondriaIvan Spasojevic
Department of Medicine, Duke University Medical Center, Durham, NC 27710, USA
Free Radic Biol Med 42:1193-200. 2007..55:39-46; 1979). We found MnIIITE-2-PyP5+ localized in heart mitochondria to 2.95 ng/mg protein. Given the average value of mitochondrial volume of 0...
Mitochondrial potassium transport: the K(+) cycleKeith D Garlid
Department of Biology, Portland State University, 1719 SW 10th Avenue, PO Box 751, Portland, OR 97207, USA
Biochim Biophys Acta 1606:23-41. 2003..This review discusses the properties of the mitochondrial K(+) cycle that help to understand the basis of these diverse effects...
Detection of reactive oxygen species-sensitive thiol proteins by redox difference gel electrophoresis: implications for mitochondrial redox signalingThomas R Hurd
Medical Research Council Dunn Human Nutrition Unit, Wellcome Trust Medical Research Council Building, Hills Road, Cambridge, UK
J Biol Chem 282:22040-51. 2007..Thiol redox modification affected enzyme activity, suggesting that the reversible modification of enzyme activity by ROS from the respiratory chain may be an important and unexplored mode of mitochondrial redox signaling...
Cardioprotective signaling to mitochondriaKeith D Garlid
Department of Biology, Portland State University, Portland, OR 97201 0751, USA
J Mol Cell Cardiol 46:858-66. 2009..We review the experimental findings that bear on these hypotheses and other modes of protection involving mitochondria...
K(ATP) channel-independent targets of diazoxide and 5-hydroxydecanoate in the heartPeter J Hanley
, , Deutschhausstrasse 2, 35037 Marburg, Germany
J Physiol 542:735-41. 2002..We propose that pharmacological preconditioning may be related to partial inhibition of respiratory chain complexes...
Postconditioning inhibits mitochondrial permeability transitionLaurent Argaud
INSERM E 0226, , France
Circulation 111:194-7. 2005..05). CONCLUSIONS: Postconditioning inhibits opening of the mPTP and provides a powerful antiischemic protection...
Diabetes and mitochondrial oxidative stress: a study using heart mitochondria from the diabetic Goto-Kakizaki ratDario Loureiro Santos
, Vila Real, Portugal
Mol Cell Biochem 246:163-70. 2003..In terms of lipid peroxidation the oxidative damage was evaluated on heart mitochondria by measuring both the O2 consumption and the concentrations of thiobarbituric acid reactive substances...
Metallothionein transfers zinc to mitochondrial aconitase through a direct interaction in mouse heartsWenke Feng
Department of Medicine, University of Louisville School of Medicine, Louisville, KY 40202, USA
Biochem Biophys Res Commun 332:853-8. 2005..The m-aconitase, not the cytosolic aconitase (c-aconitase), was co-immunoprecipitated with MT. This study demonstrates that MT transfers zinc to m-aconitase through a direct interaction...
Analysis of the subunit composition of complex I from bovine heart mitochondriaJoe Carroll
Medical Research Council Dunn Human Nutrition Unit, The Wellcome Trust MRC Building, Hills Road, Cambridge CB2 2XY, United Kingdom
Mol Cell Proteomics 2:117-26. 2003Complex I purified from bovine heart mitochondria is a multisubunit membrane-bound assembly. In the past, seven of its subunits were shown to be products of the mitochondrial genome, and 35 nuclear encoded subunits were identified...
Temperature preconditioning of isolated rat hearts--a potent cardioprotective mechanism involving a reduction in oxidative stress and inhibition of the mitochondrial permeability transition poreIgor Khaliulin
Department of Biochemistry, Bristol Heart Institute, University of Bristol, UK
J Physiol 581:1147-61. 2007..The presence of N-(2-mercaptopropionyl) glycine during TP also abolished cardioprotection, indicating an involvement of free radicals in the signalling mechanism...
Mitochondrial potassium transport: the role of the mitochondrial ATP-sensitive K(+) channel in cardiac function and cardioprotectionKeith D Garlid
Department of Biology, Portland State University, 1719 SW 10th Avenue, PO Box 751, Portland, OR 97207, USA
Biochim Biophys Acta 1606:1-21. 2003..MitoK(ATP)-mediated volume regulation, in turn, prevents disruption of the structure-function of the IMS and facilitates efficient energy transfers between mitochondria and myofibrillar ATPases...
Time course of differential mitochondrial energy metabolism adaptation to chronic hypoxia in right and left ventriclesKarine Nouette-Gaulain
, E.A. Physiologie Mitochondriale, , 33076 Bordeaux Cedex, France
Cardiovasc Res 66:132-40. 2005..CONCLUSIONS: CH alters morphometry and function of mitochondria in the heart, but this effect is delayed in the right compared to the left ventricle, suggesting some adaptive processes at the onset of right ventricular hypertrophy...
Protein kinase G transmits the cardioprotective signal from cytosol to mitochondriaAlexandre D T Costa
Department of Biology, Portland State University, Portland, Ore, USA
Circ Res 97:329-36. 2005..We conclude PKG is the terminal cytosolic component of the trigger pathway; it transmits the cardioprotective signal from cytosol to inner mitochondrial membrane by a pathway that includes PKC-epsilon...
Blockade of electron transport before cardiac ischemia with the reversible inhibitor amobarbital protects rat heart mitochondriaQun Chen
Dept of Medicine, Cardiology Section, Medical Service 111 W, Case Western Reserve University, Louis Stokes Veterans Affairs Medical Center, 10701 East Boulevard, Cleveland, OH 44106, USA
J Pharmacol Exp Ther 316:200-7. 2006..5 mM. Amobarbital also preserved cytochrome c content in both SSM and IFM. Thus, reversible blockade of the electron transport chain during ischemia protects mitochondrial respiration...
Alcohol and mitochondria in cardiac apoptosis: mechanisms and visualizationGyorgy Hajnoczky
Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, Pennsylvania 19107, USA
Alcohol Clin Exp Res 29:693-701. 2005..This article discusses potential mechanisms of the effect of alcohol on mitochondrial membrane permeabilization and visualization of mitochondria-dependent apoptosis in cardiac muscle...
Mitochondrial Ca2+-activated K+ channels in cardiac myocytes: a mechanism of the cardioprotective effect and modulation by protein kinase AToshiaki Sato
Department of Pharmacology, Chiba University Graduate School of Medicine, 1 8 1 Inohana, Chuo Ku, Chiba 260 8670, Japan
Circulation 111:198-203. 2005..However, questions about the cardioprotective mechanism and the kinase-mediated regulation of mitoK(Ca) channels remain to be answered...
5-Hydroxydecanoate is metabolised in mitochondria and creates a rate-limiting bottleneck for beta-oxidation of fatty acidsPeter J Hanley
Institut fur Normale und Pathologische Physiologie, Universitat Marburg, Deutschhausstrasse 2, 35037 Marburg, Germany
J Physiol 562:307-18. 2005..using specially synthesised (and purified) substrates and enzymes, as well as isolated rat liver and heart mitochondria, and compared it with the metabolism of the physiological substrate decanoyl-CoA...
Architecture of active mammalian respiratory chain supercomplexesEva Schäfer
Department of Chemistry, Physical Biochemistry, Darmstadt University of Technology, Petersenstrasse 22, D 64287 Darmstadt, Germany
J Biol Chem 281:15370-5. 2006..microscopic characterization of the two respiratory chain supercomplexes I1III2 and I1III2IV1 in bovine heart mitochondria, which are also two major supercomplexes in human mitochondria...
FCCP is cardioprotective at concentrations that cause mitochondrial oxidation without detectable depolarisationJonathan P Brennan
Cardiac Physiology (Cardiovascular Division, King's College London, SE1 7EH, UK
Cardiovasc Res 72:322-30. 2006..This establishes the principle that mild mitochondrial uncoupling activates a protective mechanism. Diazoxide did not cause mitochondrial oxidation or mitochondrial depolarisation, suggesting it induces protection via another mechanism...
The inhibition of mitochondrial complex I (NADH:ubiquinone oxidoreductase) by Zn2+Mark S Sharpley
Medical Research Council (MRC) Dunn Human Nutrition Unit, Wellcome Trust/MRC Building, Hills Road, Cambridge, CB2 2XY, United Kingdom
J Biol Chem 281:34803-9. 2006NADH:ubiquinone oxidoreductase (complex I) from bovine heart mitochondria is a highly complicated, membrane-bound enzyme...
Modular regulation analysis of heart contraction: application to in situ demonstration of a direct mitochondrial activation by calcium in beating heartPhilippe Diolez
Résonance Magnétique des Systèmes Biologiques, UMR5536 CNRS Université Victor Segalen Bordeaux 2, 146 rue Leo Saignat, 33076 Bordeaux Cedex, France
Am J Physiol Regul Integr Comp Physiol 293:R13-9. 2007....
DNA precursor asymmetries in mammalian tissue mitochondria and possible contribution to mutagenesis through reduced replication fidelityShiwei Song
Department of Biochemistry and Biophysics, Oregon State University, 2011 ALS, Corvallis, OR 97331 7305, USA
Proc Natl Acad Sci U S A 102:4990-5. 2005....
Reduced mitochondrial DNA transcription in senescent rat heartA L Andreu
Centre d Investigacions en Bioquímica i Biologia Molecular dels Hospitals Vall d Hebrón, P Vall d Hebrón 119 125, Barcelona, E 08035, Spain
Biochem Biophys Res Commun 252:577-81. 1998..senescence on mitochondrial DNA (mtDNA) transcription with an in organello system using intact isolated rat heart mitochondria. A comparison of the electrophoretic patterns of mtDNA transcription products in young, adult and senescent ..
Fo membrane domain of ATP synthase from bovine heart mitochondria: purification, subunit composition, and reconstitution with F1-ATPaseI R Collinson
MRC Laboratory of Molecular Biology, Cambridge, U K
Biochemistry 33:7971-8. 1994The Fo membrane domain of the F1Fo-ATP synthase complex has been purified from bovine heart mitochondria. The purification procedure involves the removal of peripheral membrane proteins, including F1-ATPase, from submitochondrial ..
Mitochondrial K(ATP) channels: role in cardioprotectionOlaf Oldenburg
Department of Physiology, MSB 3024, University of South Alabama, College of Medicine, Mobile 36688, USA
Cardiovasc Res 55:429-37. 2002..Thus the mK(ATP) probably serves a dual role as both a trigger and a mediator. Possible end-effectors of preconditioning's protection are discussed including the mK(ATP) itself...
Mitochondrial ATPase and high-energy phosphates in failing heartsJ Liu
Department of Medicine, University of Minnesota Health Sciences, Minneapolis, Minnesota 55455, USA
Am J Physiol Heart Circ Physiol 281:H1319-26. 2001..Thus in failing hearts, reductions in mitochondrial F(0)F(1)-ATPase protein expression are associated with increased myocardial free ADP...
Site-specific S-glutathiolation of mitochondrial NADH ubiquinone reductaseChwen Lih Chen
Davis Heart and Lung Research Institute, Division of Cardiovascular Medicine, Department of Internal Medicine, The Ohio State University, Columbus, Ohio 43210, USA
Biochemistry 46:5754-65. 2007..The result also implies that S-glutathiolation of the 75 kDa subunit may play a role in protecting the 4Fe-4S cluster of the 51 kDa subunit from redox modification when complex I is exposed to redox change in the GSH pool...
Definition of the nuclear encoded protein composition of bovine heart mitochondrial complex I. Identification of two new subunitsJoe Carroll
Medical Research Council Dunn Human Nutrition Unit, Wellcome Trust MRC Building, Hills Road, Cambridge CB2 2XY, United Kingdom
J Biol Chem 277:50311-7. 2002..Subunit ESSS has a cleaved mitochondrial import sequence and one potential transmembrane helix. A total of 45 different subunits of bovine complex I have now been characterized...
Proteomic analysis of protein tyrosine nitration after ischemia reperfusion injury: mitochondria as the major targetBin Liu
Center for Biomedical EPR Spectroscopy and Imaging, Davis Heart and Lung Research Institute, and Division of Cardiovascular Medicine, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH, 43210, USA
Biochim Biophys Acta 1794:476-85. 2009..Selective nitration of proteins from the oxidative phosphorylation system at the beginning of reperfusion may contribute to the suppression of oxygen consumption...
Mitochondria are targets for geranylgeranylacetone-induced cardioprotection against ischemia-reperfusion in the rat heartTetsuji Shinohara
Department of Internal Medicine 1, Faculty of Medicine, Oita University, 1 1 Idaigaoka, Hasama, Oita 879 5593, Japan
Am J Physiol Heart Circ Physiol 293:H1892-9. 2007..These processes may involve opening of the mitoK(ATP) channel...
Mitochondrial PKCepsilon and MAPK form signaling modules in the murine heart: enhanced mitochondrial PKCepsilon-MAPK interactions and differential MAPK activation in PKCepsilon-induced cardioprotectionChristopher P Baines
Department of Physiology, University of Louisville, and the Jewish Hospital Heart and Lung Institute, Louisville, KY 40202, USA
Circ Res 90:390-7. 2002..Furthermore, formation of mitochondrial PKCepsilon-ERK modules appears to play a role in PKCepsilon-mediated cardioprotection, in part by the phosphorylation and inactivation of Bad...
Role of mitochondrial re-energization and Ca2+ influx in reperfusion injury of metabolically inhibited cardiac myocytesGlenn C Rodrigo
Department of Cell Physiology and Pharmacology, University of Leicester, PO Box 138, Leicester LE1 9HN, UK
Cardiovasc Res 67:291-300. 2005..We used isolated myocytes to investigate the role of mitochondrial re-energization and Ca2+ influx during reperfusion on hypercontracture, loss of Ca2+ homeostasis and contractile function...
Mitochondria protection from hypoxia/reoxygenation injury with mitochondria heat shock protein 70 overexpressionCourtney L Williamson
West Virginia University School of Medicine, Division of Exercise Physiology, Center for Interdisciplinary Research in Cardiovascular Sciences, 1 Medical Center Drive, Morgantown, WV 26506, USA
Am J Physiol Heart Circ Physiol 294:H249-56. 2008....
Mitochondrial uncoupling, with low concentration FCCP, induces ROS-dependent cardioprotection independent of KATP channel activationJonathan P Brennan
Cardiac Physiology (Cardiovascular Division, The Rayne Institute, St Thomas' Hospital, King's College London, SE1 7EH, UK
Cardiovasc Res 72:313-21. 2006..This cardioprotection is not mediated via the depletion of cellular ATP or mitochondrial K(ATP) channel activation...
Effect of T3 treatment on the response to ischemia-reperfusion of heart preparations from sedentary and trained ratsPaola Venditti
Dipartimento delle Scienze Biologiche, Sezione di Fisiologia, Universita Federico II di Napoli, V Mezzocannone 8, I80134 Naples, Italy
Pflugers Arch 455:667-76. 2008..The above results suggest that moderate training is able to reduce hyperthyroid heart susceptibility to oxidative damage and dysfunction modifying mitochondrial population...
The role of mitochondria in protection of the heart by preconditioningAndrew P Halestrap
Department of Biochemistry and Bristol Heart Institute, University of Bristol, School of Medical Sciences, University Walk, Bristol BS8 1TD, UK
Biochim Biophys Acta 1767:1007-31. 2007..This phase of protection may involve survival kinase pathways such as Akt and glycogen synthase kinase 3 (GSK3) either increasing ROS removal or reducing mitochondrial ROS production...
Cardioprotection by K(ATP) channels in wild-type hearts and hearts overexpressing A(1)-adenosine receptorsJ P Headrick
The Rotary Centre for Cardiovascular Research, Griffith University Gold Coast Campus, Southport, QLD 4217 Australia
Am J Physiol Heart Circ Physiol 279:H1690-7. 2000..This functional protection occurs without modification of ischemic contracture. The data also support a role for mitochondrial K(ATP) channel activation in the pronounced cardioprotection afforded by overexpression of myocardial A(1)ARs...
Mitochondrial membrane fluidity, potential, and calcium transients in the myocardium from acute diabetic ratsIveta Waczulikova
Department of Nuclear Physics and Biophysics, Division of Biomedical Physics, Faculty of Mathematics, Physics, and Informatics, Comenius University, Mlynska dolina F1, 842 48 Bratislava, Slovak Republic
Can J Physiol Pharmacol 85:372-81. 2007..time concurrent measurements of membrane potential and dynamics and respiratory chain activities in rat heart mitochondria, as well as calcium transients in the hearts of rats in an early phase of streptozotocin diabetes, not yet ..
Ischemic preconditioning with opening of mitochondrial adenosine triphosphate-sensitive potassium channels or Na/H exchange inhibition: which is the best protective strategy for heart transplants?E Kevelaitis
Department of Physiology, Kaunas University of Medicine, Kaunas, Lithuania
J Thorac Cardiovasc Surg 121:155-62. 2001....
Testosterone induces cytoprotection by activating ATP-sensitive K+ channels in the cardiac mitochondrial inner membraneFikret Er
Department of Internal Medicine III, University of Cologne, Cologne, Germany
Circulation 110:3100-7. 2004..Endogenous testosterone might play a more important role in recovery after myocardial infarction than is currently assumed...
Attenuation of mitochondrial, but not cytosolic, Ca2+ overload reduces myocardial injury induced by ischemia and reperfusionChun-Mei Cao
The Institute of Molecular Medicine, Peking University, Beijing 100871, China
Acta Pharmacol Sin 27:911-8. 2006..We also confirmed the previous observation that attenuation of [Ca2+]m, but not [Ca2+]c, by ruthenium red improves contractile recovery following ischemia/reperfusion...
Isoflurane preconditioning protects against ischemia-reperfusion injury partly by attenuating cytochrome c release from subsarcolemmal mitochondria in isolated rat heartsLi-Ping Qian
Jiangsu Provincial Key Lab of Anesthesiology, Jiangsu Institute of Anesthesiology, Xuzhou Medical College, Xuzhou 221002, China
Acta Pharmacol Sin 26:813-20. 2005..5% and 1.0% concentrations of isoflurane. CONCLUSION: Myocardioprotective effects of isoflurane preconditioning were associated with attenuation of cytochrome c loss from the inner membrane of subsarcolemmal mitochondria...
Mitochondrial genome involvement in ischemia/reperfusion-induced adaptive changes in human myocardial cellsG C Corbucci
Departement of Anesthesia and Resuscitation University of Cagliari, Cagliari, Italy
Minerva Anestesiol 72:337-47. 2006..OX) and mitochondrial encoded subunit 2 expression. Aim of the study was to investigate specific stages of the biochemical and molecular cascade which takes place in cytoprotective mechanisms of ischemic and reperfused cardiac cell...
Effect of pressure overload on cardioprotection of mitochondrial KATP channels and GSK-3beta: interaction with the MPT poreMahmood S Mozaffari
Department of Oral Biology, Medical College of Georgia School of Dentistry, Augusta, Georgia, USA
Am J Hypertens 21:570-5. 2008....
Leptin, the obesity-associated hormone, exhibits direct cardioprotective effectsC C T Smith
The Hatter Cardiovascular Institute, University College London Hospital and Medical School, London, UK
Br J Pharmacol 149:5-13. 2006..CONCLUSIONS AND IMPLICATIONS: Our data indicate for the first time that the adipocytokine, leptin, has direct cardioprotective properties which may involve the PI3-Akt and p44/42 MAPK pathways...
Inhibition of mitochondrial permeability transition pore opening by ischemic preconditioning is probably mediated by reduction of oxidative stress rather than mitochondrial protein phosphorylationSamantha J Clarke
Department of Biochemistry and The Bristol Heart Institute, University of Bristol, Bristol BS8 1TD, United Kingdom
Circ Res 102:1082-90. 2008..The signaling pathways mediating this effect and maintaining it during reperfusion are discussed...
Upstream signaling of protein kinase C-epsilon in xenon-induced pharmacological preconditioning. Implication of mitochondrial adenosine triphosphate dependent potassium channels and phosphatidylinositol-dependent kinase-1Nina C Weber
Department of Anaesthesiology, University Hospital of Dusseldorf, Moorenstrasse 5, 40225 Dusseldorf, Germany
Eur J Pharmacol 539:1-9. 2006..5-hydroxydecanoate and Wortmannin blocked both effects. PKC-epsilon is activated downstream of mitochondrial K(ATP) channels and PDK-1. Both pathways are functionally involved in xenon preconditioning...
Ischemic preconditioning or p38 MAP kinase inhibition attenuates myocardial TNF alpha production and mitochondria damage in brief myocardial ischemiaHiroko Kimura
Department of Forensic Medicine, Juntendo University School of Medicine, Hongo 2-1-1, Tokyo 113-8421, Japan
Life Sci 78:1901-10. 2006..This is the first demonstration of the TNF alpha up-regulation in membrane structures of ischemic cardiomyocyte through p38 MAP kinase-mediated post-transcriptional mechanism, in association with mitochondrial damage...
Brief antecedent anoxia preserves mitochondrial function after sustained undersupply: a subcellular correlate to ischemic preconditioning?Sven Y Vetter
Medizinische Universitätsklinik Ludolf Krehl Klinik, Abteilung Innere Medizin III Schwerpunkt Kardiologie, Angiologie und Pulmologie, Im Neuenheimer Feld 410, D 69120, Heidelberg, Germany
Mol Cell Biochem 285:191-6. 2006..In addition, we tested whether this protection depends on mitochondrial ATP-dependent potassium channels (K (ATP)) and an might involve an attenuation of mitochondrial ATP hydrolysis during sustained anoxia...
The mitochondrial origin of postischemic arrhythmiasFadi G Akar
Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, Maryland 210205, USA
J Clin Invest 115:3527-35. 2005....
Research Grants
- STUDIES OF O2 ACTIVATION BY MOSSBAUER SPECTROSCOPYEckard Munck; Fiscal Year: 1990..The a3-site of the enzyme, the locus of oxygen reduction, will be studied with enzymes isolated from beef heart mitochondria, Thermus thermophilus and Nitrosomonas europeae...
- Microxymetry Techniques for Cardiomocyte RespirationGovindasamy Ilangovan; Fiscal Year: 2005..production will also be studied using the proposed microxymetry; (ii) to study the respiration of isolated heart mitochondria using the proposed microxymtery...
- Cations and ROS in Modulating Mitochondrial Function in Normal and Ischemic HeartRANJAN K contact DASH; Fiscal Year: 2010..g., cation channel blockers or openers) to alleviate mitochondrial dysfunction and preserve cellular viability. ..
- METABOLISM OF UNSATURATED AND HYDROXY FATTY ACIDSHorst Schulz; Fiscal Year: 1990..between the rates of oxidation of cis and trans unsaturated fatty acids will be determined with rat heart mitochondria. The oxidation of hydroxy fatty acids including 5-hydroxy-6,8,11,13-eicosatetraenoic acid (5-HETE) in ..
- Heart mitochondrial toxicity of antiviral nucleosidesEdward McKee; Fiscal Year: 2006..the HAART components, AZT (Zidovudine) is converted slowly only to AZT-MP and no further, in both isolated heart mitochondria and in the isolated perfused rat heart under conditions in which labeled thymidine is readily converted to ..
- ENERGY TRANSDUCING ATPASEWilliam Allison; Fiscal Year: 1990..these goals, chemical modification studies are being conducted in parallel on the F1-ATPases from bovine heart mitochondria (MF1), the plasma membrane of E...
- PROTON & ELECTRON TRANSFER & ENERGY COUPLING IN SITE ITOMOKO NONE OHNISHI; Fiscal Year: 2010..Complex I is the major site of superoxide generation in brain and heart mitochondria, but no consensus has been attained regarding the generation site(s)...
- PROTON & ELECTRON TRANSFER & ENERGY COUPLING IN SITE ITomoko Ohnishi; Fiscal Year: 2009..Complex I is the major site of superoxide generation in brain and heart mitochondria, but no consensus has been attained regarding the generation site(s)...
- PROTON & ELECTRON TRANSFER & ENERGY COUPLING IN SITE ITomoko Ohnishi; Fiscal Year: 2007..Complex I is the major site of superoxide generation in brain and heart mitochondria, but no consensus has been attained regarding the generation site(s)...
- Molecular Regulation of Cardiac KATP Channels in IschemiaJonathan C Makielski; Fiscal Year: 2010..a newly created panel of SUR2 antibodies and discovered novel short variants (Kd120, 68, 55, 28) in mouse heart mitochondria, with the SUR2-55 form uniquely in mitochondria and not the surface...
- Molecular Regulation of Cardiac KATP Channels in IschemiaJonathan Makielski; Fiscal Year: 2009..a newly created panel of SUR2 antibodies and discovered novel short variants (Kd120, 68, 55, 28) in mouse heart mitochondria, with the SUR2-55 form uniquely in mitochondria and not the surface...
- MITOCHONDRIA AND PULMONARY ENDOTHELIAL CELL DEATHJames Peterson; Fiscal Year: 2003..electron paramagnetic resonance spectroscopy and magnetic circular and linear dichroism in isolated bovine heart mitochondria and voltage sensitive dyes in intact bovine pulmonary artery endothelial cells, will provide mechanistic ..
- STUDIES OF ATP SYNTHETASE FROM HEART MITOCHONDRIARoderick Capaldi; Fiscal Year: 1980The ATP synthetase of heart mitochondria is a multicomponent complex which functions in electron transport driven ATP synthesis and as an ATPase to drive ion transport or reverse electron transport...
