Protein Information

Name malate dehydrogenase
Synonyms ME3; Malate dehydrogenase; NADP ME; Pyruvic malic carboxylase; Malic enzyme 3; Mitochondrial NADP(+) dependent malic enzyme 3; Malic enzyme 3s; Mitochondrial NADP(+) dependent malic enzyme 3s

Compound Information

Name TCA
CAS 2,2,2-trichloroacetic acid

Reference List

PubMed Abstract RScore(About this table)
18206986 Shi Q, Xu H, Kleinman WA, Gibson GE: Novel functions of the alpha-ketoglutarate dehydrogenase complex may mediate diverse oxidant-induced changes in mitochondrial enzymes associated with Alzheimer's disease. Biochim Biophys Acta. 2008 Apr;1782(4):229-38. Epub 2007 Dec 31.


Measures in autopsied brains from Alzheimer's Disease (AD) patients reveal a decrease in the activity of alpha-ketoglutarate dehydrogenase complex (KGDHC) and an increase in malate dehydrogenase (MDH) activity.
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18162426 de Jongh WA, Nielsen J: Enhanced citrate production through gene insertion in Aspergillus niger. Metab Eng. 2008 Mar;10(2):87-96. Epub 2007 Nov 17.


Several different genes were inserted individually and in combination, i.e. malate dehydrogenase (mdh2) from Saccharomyces cerevisiae, two truncated, cytosolic targeted, fumarases (Fum1s and FumRs) from S. cerevisiae and Rhizopus oryzae, respectively, and the cytosolic soluble fumarate reductase (Frds1) from S. cerevisiae.
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16555951 Wu JL, Wu QP, Huang JM, Chen R, Cai M, Tan JB: Effects of L-malate on physical stamina and activities of enzymes related to the malate-aspartate shuttle in liver of mice. Physiol Res. 2007;56(2):213-20. Epub 2006 Mar 23.


The activities of cytosolic and mitochondrial malate dehydrogenase were significantly elevated in the L-malate-treated group compared with the control group.
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14996808 Kromer JO, Sorgenfrei O, Klopprogge K, Heinzle E, Wittmann C: In-depth profiling of lysine-producing Corynebacterium glutamicum by combined analysis of the transcriptome, metabolome, and fluxome. J Bacteriol. 2004 Mar;186(6):1769-84.


In contrast, cytoplasmic malate dehydrogenase expression increased despite a reduction of the TCA cycle flux, probably related to its contribution to NADH regeneration under conditions of reduced growth.
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18951770 Bhatt DK, Bano M: Modulation of tricarboxylic acid cycle dehydrogenases during hepatocarcinogenesis induced by hexachlorocyclohexane in mice. Exp Toxicol Pathol. 2009 Jul;61(4):325-32. Epub 2008 Oct 31.


The activity of TCA cycle enzymes such as isocitrate dehydrogenase (ICDH), succinate dehydrogenase (SDH), and malate dehydrogenase (MDH) have been studied.
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16143346 Senthilnathan P, Padmavathi R, Magesh V, Sakthisekaran D: Modulation of TCA cycle enzymes and electron transport chain systems in experimental lung cancer. Life Sci. 2006 Jan 25;78(9):1010-4. Epub 2005 Sep 6.


Decreased activities of TCA cycle key enzymes such as isocitrate dehydrogenase (ICDH), succinate dehydrogenase (SDH), malate dehydrogenase (MDH) and alpha-ketoglutarate dehydrogenase (alpha-KGDH) in lung cancer bearing animals were observed.
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18001705 Veena CK, Josephine A, Preetha SP, Rajesh NG, Varalakshmi P: Mitochondrial dysfunction in an animal model of hyperoxaluria: a prophylactic approach with fucoidan. Eur J Pharmacol. 2008 Jan 28;579(1-3):330-6. Epub 2007 Oct 16.


The tricarboxylic acid (TCA) cycle enzymes like succinate dehydrogenase, isocitrate dehydrogenase, malate dehydrogenase and respiratory complex enzyme activities were assessed to evaluate mitochondrial function.
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14604472 Arathi G, Sachdanandam P: Therapeutic effect of Semecarpus anacardium Linn. nut milk extract on carbohydrate metabolizing and mitochondrial TCA cycle and respiratory chain enzymes in mammary carcinoma rats. J Pharm Pharmacol. 2003 Sep;55(9):1283-90.


The activities of mitochondrial enzymes isocitrate dehydrogenase, alpha-ketoglutarate dehydrogenase, succinate dehydrogenase, malate dehydrogenase, NADH-dehydrogenase and cytochrome C oxidase were significantly lowered in mammary carcinoma-bearing rats when compared with control rats.
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18336823 Fleige T, Pfaff N, Gross U, Bohne W: Localisation of gluconeogenesis and tricarboxylic acid (TCA)-cycle enzymes and first functional analysis of the TCA cycle in Toxoplasma gondii. Int J Parasitol. 2008 Aug;38(10):1121-32. Epub 2008 Feb 13.


Based on the expression and localisation of epitope-tagged fusion proteins, we show that all analysed TCA cycle enzymes are localised in the mitochondrion, including both isoforms of malate dehydrogenase.
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16209543 Wang Y, Wu SL, Hancock WS, Trala R, Kessler M, Taylor AH, Patel PS, Aon JC: Proteomic profiling of Escherichia coli proteins under high cell density fed-batch cultivation with overexpression of phosphogluconolactonase. Biotechnol Prog. 2005 Sep-Oct;21(5):1401-11.


During the time course of samples collected during the rapid growth achieved under batch and fed-batch conditions, both the control and recombinant E. coli strains showed up-regulation of proteins participating in the tricarboxylic acid (TCA) cycle, particularly acetyl-CoA synthetase (AcCoAS), malate dehydrogenase (MDH), and succinyl-CoA synthetase (SuccCoAS).
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19053364 Schiavon M, Ertani A, Nardi S: Effects of an alfalfa protein hydrolysate on the gene expression and activity of enzymes of the tricarboxylic acid (TCA) cycle and nitrogen metabolism in Zea mays L. J Agric Food Chem. 2008 Dec 24;56(24):11800-8.


The activity of a number of enzymes involved in carbon (C) metabolism (malate dehydrogenase, MDH; isocitrate dehydrogenase, IDH; citrate synthase, CS) and N reduction and assimilation (nitrate reductase, NR; nitrite reductase, NiR; glutamine synthetase, GS; glutamate synthase, GOGAT; aspartate aminotransferase, AspAT) was significantly induced by EM supply to plants, and the transcription pattern of MDH, IDH, CS, and NR strongly correlated with data of enzyme activity.
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15852400 Bubber P, Haroutunian V, Fisch G, Blass JP, Gibson GE: Mitochondrial abnormalities in Alzheimer brain: mechanistic implications. Ann Neurol. 2005 May;57(5):695-703.


Activities of succinate dehydrogenase (complex II) (+44%) and malate dehydrogenase (+54%) were increased (p < 0.01).
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16495757 Sudharsan PT, Mythili Y, Selvakumar E, Varalakshmi P: Lupeol and its ester exhibit protective role against cyclophosphamide-induced cardiac mitochondrial toxicity. J Cardiovasc Pharmacol. 2006 Feb;47(2):205-10.


A decrease in the activities of TCA cycle enzymes such as succinate dehydrogenase, malate dehydrogenase, and isocitrate dehydrogenase were noted in CP-treated rats.
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12631716 McCammon MT, Epstein CB, Przybyla-Zawislak B, McAlister-Henn L, Butow RA: Global transcription analysis of Krebs tricarboxylic acid cycle mutants reveals an alternating pattern of gene expression and effects on hypoxic and oxidative genes. Mol Biol Cell. 2003 Mar;14(3):958-72.


Another set of genes displayed a pairwise, alternating pattern of expression in response to contiguous TCA cycle enzyme defects: expression was elevated in aconitase and isocitrate dehydrogenase mutants, diminished in alpha-ketoglutarate dehydrogenase and succinyl-CoA ligase mutants, elevated again in succinate dehydrogenase and fumarase mutants, and diminished again in malate dehydrogenase and citrate synthase mutants.
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12138751 Il'chenko AP, Cherniavskaia OG, Shishkanova NV, Finogenova TV: [Metabolism of Yarrowia lipolytica grown on ethanol under conditions promoting the production of alpha-ketoglutaric and citric acids: a comparative study of the central metabolism enzymes]. Mikrobiologiia. 2002 May-Jun;71(3):316-22.

A comparative study of the enzymes of the tricarboxylic acid (TCA) and glyoxylate cycles in the mutant Yarrowia lipolytica strain N1 capable of producing alpha-ketoglutaric acid (KGA) and citric acid showed that almost all enzymes of the TCA cycle are more active under conditions promoting the production of KGA.
The activities of malate dehydrogenase, aconitase, NADP-dependent isocitrate dehydrogenase, and fumarase were higher in cells producing KGA than in cells producing citric acid.
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16758861 Fedorov DV, Podkopaeva DA, Miroshnichenko ML, Bonch-Osmolovskaia EA, Lebedinskii AV, Grabovich MIu: [Investigation of the catabolism of acetate and peptides in the new anaerobic thermophilic bacterium Caldithrix abyssi]. Mikrobiologiia. 2006 Mar-Apr;75(2):154-9.


The activity of fumarate reductase (0.14 micromol/(min mg protein)), malate dehydrogenase (0.17 micromol/(min mg protein)), and fumarate hydratase (1.2 micromol/(min mg protein)), as well as the presence of cytochrome b, points to the formation of propionate via the methyl-malonyl-CoA pathway.
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17054944 Paskulin R, Jamnik P, Zivin M, Raspor P, Strukelj B: Ibogaine affects brain energy metabolism. . Eur J Pharmacol. 2006 Dec 15;552(1-3):11-4. Epub 2006 Sep 16.


Enzymes of glycolysis and tricarboxylic acid (TCA) cycle namely glyceraldehyde-3-phosphate dehydrogenase, aldolase A, pyruvate kinase and malate dehydrogenase were induced.
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17349985 Arulkumaran S, Ramprasath VR, Shanthi P, Sachdanandam P: Alteration of DMBA-induced oxidative stress by additive action of a modified indigenous preparation--Kalpaamruthaa. Chem Biol Interact. 2007 Apr 25;167(2):99-106. Epub 2007 Feb 4.


DMBA-treated rats also showed decline in the activities of mitochondrial enzymes such as succinate dehydrogenase, alpha-ketoglutarate dehydrogenase, malate dehydrogenase and isocitrate dehydrogenase.
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16085348 Mythili Y, Sudharsan PT, Varalakshmi P: dl-alpha-lipoic acid ameliorates cyclophosphamide induced cardiac mitochondrial injury. Toxicology. 2005 Nov 5;215(1-2):108-14. Epub 2005 Aug 8.


A decrease in the activities of TCA cycle enzymes such as succinate dehydrogenase, malate dehydrogenase and isocitrate dehydrogenase was noted in CP treated rats.
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14526533 Pirog TP, Kuz'minskaia IuV: [Central metabolism in Acinetobacter sp. grown on ethanol] . Mikrobiologiia. 2003 Jul-Aug;72(4):459-65.


The addition of the C4-dicarboxylic acid fumarate to the ethanol-containing growth medium led to a 1.5- to 2-fold increase in the activity of enzymes of the glyoxylate cycle, as well as of fumarate hydratase, malate dehydrogenase, PEP synthase, and PEP carboxykinase (the activity of the latter enzyme increased by more than 7.5 times).
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15098932 Malthankar GV, White BK, Bhushan A, Daniels CK, Rodnick KJ, Lai JC: Differential lowering by manganese treatment of activities of glycolytic and tricarboxylic acid (TCA) cycle enzymes investigated in neuroblastoma and astrocytoma cells is associated with manganese-induced cell death. Neurochem Res. 2004 Apr;29(4):709-17.


In parallel with the Mn-induced, dose-dependent decrease in cell survival, treatment of these cells with 0.01 to 4.0 mM MnCl2 for 48 h also induced dose-related decreases in their activities of hexokinase, pyruvate kinase, lactate dehydrogenase, citrate synthase, and malate dehydrogenase.
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15158257 Peng L, Arauzo-Bravo MJ, Shimizu K: Metabolic flux analysis for a ppc mutant Escherichia coli based on 13C-labelling experiments together with enzyme activity assays and intracellular metabolite measurements. FEMS Microbiol Lett. 2004 Jun 1;235(1):17-23.


Some TCA cycle enzymes such as citrate synthase, aconitase and malate dehydrogenase were also upregulated, but enzymes of glycolysis and the pentose phosphate pathway were downregulated.
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20199583 Kamaraj S, Anandakumar P, Jagan S, Ramakrishnan G, Devaki T: Hesperidin attenuates mitochondrial dysfunction during benzo (a) pyrene-induced lung carcinogenesis in mice. Fundam Clin Pharmacol. 2010 Feb 22.


B (a) P (50 mg/kg body weight)-induced mitochondrial abnormalities was evident from alterations in mitochondrial lipid peroxides, antioxidant status (superoxide dismutase, catalase, glutathione peroxidase, glutathione reductase, glutathione-S-transferase, reduced glutathione, vitamin E, and vitamin C), major tricarboxylic acid (TCA) cycle enzyme activities (isocitrate dehydrogenase, succinate dehydrogenase, malate dehydrogenase, alpha-ketoglutarate dehydrogenase), electron transport chain (ETC) complexes activities and ATP levels.
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20222442 Zhang D, Liu L, Du G, Chen J: [Physiological function of alpha-ketoglutarate dehydrogenase complex in Torulopsis glabrata]. Wei Sheng Wu Xue Bao. 2009 Dec 4;49(12):1584-9.


But the specific activities of pyruvate dehydrogenase, isocitrate dehydrogenase and malate dehydrogenase increased by 58.1%, 33.3% and 32.5%, respectively; (c) the intracellular concentration of pyruvate was reduced by 49.9%, while the intracellular concentration of succinate, malate and alpha-ketoglutarate was higher 172.7%, 66.1% and 41.1% than the corresponding values of the control; (d) The content of pyruvate-family amino acid was 29.3% lower while the level of glutamate-family amino acid and aspartate-family amino acid were 34.7% and 26.8% higher than that of control.
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16786185 Gnanapragasam A, Yogeeta S, Subhashini R, Ebenezar KK, Sathish V, Devaki T: Adriamycin induced myocardial failure in rats: protective role of Centella asiatica. Mol Cell Biochem. 2007 Jan;294(1-2):55-63. Epub 2006 Jun 20.


Adriamycin (2.5 mg/kg body wt., i.p.) induced mitochondrial damage in rats was assessed in terms of decreased activities (p <0.05) of cardiac marker enzymes (lactate dehydrogenase, creatine phosphokinase, amino transferases), TCA cycle enzymes (isocitrate dehydrogenase, alpha-ketoglutarate dehydrogenase, malate dehydrogenase, respiratory marker enzymes (NADH-dehydrogenase, cytochrome-C-oxidase), mitochondrial antioxidant enzymes (GPx, GSH, SOD,CAT) and increased (p <0.05) level of lipid peroxidation.
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20167786 Zhao S, Xu W, Jiang W, Yu W, Lin Y, Zhang T, Yao J, Zhou L, Zeng Y, Li H, Li Y, Shi J, An W, Hancock SM, He F, Qin L, Chin J, Yang P, Chen X, Lei Q, Xiong Y, Guan KL: Regulation of cellular metabolism by protein lysine acetylation. . Science. 2010 Feb 19;327(5968):1000-4.


Acetylation activated enoyl-coenzyme A hydratase/3-hydroxyacyl-coenzyme A dehydrogenase in fatty acid oxidation and malate dehydrogenase in the TCA cycle, inhibited argininosuccinate lyase in the urea cycle, and destabilized phosphoenolpyruvate carboxykinase in gluconeogenesis.
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12841626 Malarkodi KP, Balachandar AV, Varalakshmi P: The influence of lipoic acid on adriamycin induced nephrotoxicity in rats. Mol Cell Biochem. 2003 May;247(1-2):15-22.


Decreased activities of the TCA cycle enzymes isocitrate dehydrogenase, succinate dehydrogenase and malate dehydrogenase, suggest a loss in mitochondrial function and integrity.
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15337301 Bubber P, Ke ZJ, Gibson GE: Tricarboxylic acid cycle enzymes following thiamine deficiency. . Neurochem Int. 2004 Dec;45(7):1021-8.


Non-thiamine-dependent enzymes such as succinate dehydrogenase (SDH), succinate thiokinase (STH) and malate dehydrogenase (MDH) were altered as much or more than thiamine-dependent enzymes such as the alpha-ketoglutarate dehydrogenase complex (KGDHC) (-21.5%) and PDHC (-10.5%).
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15565635 Lo AS, Liew CT, Ngai SM, Tsui SK, Fung KP, Lee CY, Waye MM: Developmental regulation and cellular distribution of human cytosolic malate dehydrogenase (MDH1). J Cell Biochem. 2005 Mar 1;94(4):763-73.


Human cyotsolic malate dehydrogenase (MDH1) is important in transporting NADH equivalents across the mitochondrial membrane, controlling tricarboxylic acid (TCA) cycle pool size and providing contractile function.
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18569708 Rajendran P, Ekambaram G, Sakthisekaran D: Effect of mangiferin on benzo (a) pyrene induced lung carcinogenesis in experimental Swiss albino mice. Nat Prod Res. 2008 May 20;22(8):672-80.


Decreased activities of electron transport chain complexes and TCA cycle key enzymes such as isocitrate dehydrogenase (ICDH), succinate dehydrogenase (SDH), malate dehydrogenase (MDH) and alpha-ketoglutarate dehydrogenase (alpha-KGDH), in lung cancer bearing animals were observed.
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20136350 Muralikrishnan G, Amanullah S, Basha MI, Dinda AK, Shakeel F: Modulating effect of Withania somnifera on TCA cycle enzymes and electron transport chain in azoxymethane-induced colon cancer in mice. Immunopharmacol Immunotoxicol. 2010 Feb 5.


After the experimental period, the animals were killed and analyzed for TCA cycle key enzymes, such as isocitrate dehydrogenase (ICDH), succinate dehydrogenase (SDH), malate dehydrogenase (MDH), and alpha-keto glutarate dehydrogenase (alpha-KGDH).
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12244711 Stepanova IIu, Eprintsev AT, Falaleeva MI, Parfenova NV, Grabovich MIu, Patritskaia VIu, Dubinina GA: [Dependence of the structure of malate dehydrogenase on the type of metabolism in fresh water filamentous colorless sulfur bacteria of the Beggiatoa species]. Mikrobiologiia. 2002 Jul-Aug;71(4):445-51.

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15521166 Eprintsev AT, Falaleeva MI, Grabovich MIu, Parfenova NV, Kashirskaia NN, Dubinina GA: [Role of malate dehydrogenase isoforms in the regulation of anabolic and catabolic processes in the colorless sulfur bacterium Beggiatoa leptomitiformis D-402]. Mikrobiologiia. 2004 Jul-Aug;73(4):437-42.

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18825970 Mysiakina IS, Funtikova NS: [Activity of NAD-dependent isocitrate dehydrogenase, isocitrate lyase, and malate dehydrogenase in Mucor circinelloides var. lusitanicus INMI under different modes of nitrogen supply]. Mikrobiologiia. 2008 Jul-Aug;77(4):453-9.

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19340598 Kumar V, Sahu NP, Pal AK, Kumar S, Sinha AK, Ranjan J, Baruah K: Modulation of key enzymes of glycolysis, gluconeogenesis, amino acid catabolism, and TCA cycle of the tropical freshwater fish Labeo rohita fed gelatinized and non-gelatinized starch diet. Fish Physiol Biochem. 2009 Apr 2.


A 60-day experiment was conducted to study the effect of dietary gelatinized (G) and non-gelatinized (NG) starch on the key metabolic enzymes of glycolysis (hexokinase, glucokinase, pyruvate kinase, and lactate dehydrogenase), gluconeogenesis (glucose-6 phosphatase and fructose-1,6 bisphosphatase), protein metabolism (aspartate amino transferase and alanine amino transferase), and TCA cycle (malate dehydrogenase) in Labeo rohita juveniles.
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15597737 Dymov SI, Meek DJ, Steven B, Driscoll BT: Insertion of transposon Tn5tac1 in the Sinorhizobium meliloti malate dehydrogenase (mdh) gene results in conditional polar effects on downstream TCA cycle genes. Mol Plant Microbe Interact. 2004 Dec;17(12):1318-27.

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18094529 Choi YJ, Uhm SJ, Song SJ, Song H, Park JK, Kim T, Park C, Kim JH: Cytochrome c upregulation during capacitation and spontaneous acrosome reaction determines the fate of pig sperm cells: linking proteome analysis. J Reprod Dev. 2008 Feb;54(1):68-83. Epub 2007 Dec 18.


After induction of capacitation in vitro, the well-established markers of the capacitation (lactadherin P47, acrosomal protein SP-10 precursor, prohibitin, proteasomes, DJ-1 protein and arylsulfatase-A) and TCA cycle proteins (isocitrate dehydrogenase, malate dehydrogenase and pyruvate dehydrogenase) were identified.
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17273855 Veit A, Polen T, Wendisch VF: Global gene expression analysis of glucose overflow metabolism in Escherichia coli and reduction of aerobic acetate formation. Appl Microbiol Biotechnol. 2007 Feb;74(2):406-21. Epub 2006 Nov 25.


A correlation analysis identified that expression of ten genes (sdhCDAB, sucB, sucC, acnB, lpdA, fumC and mdh) encoding the TCA cycle enzymes succinate dehydrogenase, alpha-ketoglutarate dehydrogenase, succinyl-CoA synthetase, aconitase, fumarase and malate dehydrogenase, respectively, and of the acs-yjcH-actP operon for acetate utilization correlated negatively with acetate formation.
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16413626 Mohankumar K, Ramasamy P: Activities of membrane bound phosphatases, transaminases and mitochondrial enzymes in white spot syndrome virus infected tissues of Fenneropenaeus indicus. Virus Res. 2006 Jun;118(1-2):130-5. Epub 2006 Jan 18.


The activities of membrane bound phosphatases (Na (+) K (+) ATPase, Ca (2+) ATPase, Mg (2+) ATPase and Total ATPase), transaminases (alanine transaminase (ALT) and aspartate transaminase (AST)) and mitochondrial enzymes (isocitrate dehydrogenase (ICDH), succinate dehydrogenase (SDH), malate dehydrogenase (MDH), alpha-ketoglutarate dehydrogenase (KGDH), NADH dehydrogenase, cytochrome C oxidase) in WSSV-infected tissues (hemolymph, hepatopancreas, gills and muscle) of Fenneropenaeus indicus were determined at intervals after WSSV infection (0, 24, 48, 72 and after 72 h (moribund)).
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16839657 Chan M, Tan DS, Wong SH, Sim TS: A relevant in vitro eukaryotic live-cell system for the evaluation of plasmodial protein localization. Biochimie. 2006 Oct;88(10):1367-75. Epub 2006 Jun 22.


These eukaryotic cells serve as an in vitro living system for studying the cellular destinations of four mitochondrial-targeted TCA cycle proteins (citrate synthase, CS; isocitrate dehydrogenase, ICDH; branched chain alpha-keto-acid dehydrogenase E1alpha subunit, BCKDH; succinate dehydrogenase flavoprotein-subunit, SDH), two nuclear-targeted proteins (histone deacetylase, HDAC; RNA polymerase, RPOL), two apicoplast-targeted proteins (pyruvate kinase 2, PK2; glutamate dehydrogenase, GDH), and two cytoplasmic resident proteins (malate dehydrogenase, MDH; glycerol kinase, GK).
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15881660 Selvendiran K, Thirunavukkarasu C, Singh JP, Padmavathi R, Sakthisekaran D: Chemopreventive effect of piperine on mitochondrial TCA cycle and phase-I and glutathione-metabolizing enzymes in benzo (a) pyrene induced lung carcinogenesis in Swiss albino mice. Mol Cell Biochem. 2005 Mar;271(1-2):101-6.


Lung cancer bearing mice showed a significant decrease in the activities of mitochondrial enzymes-isocitrate dehydrogenase (ICDH), -ketoglutarate dehydrogenase (KDH), succinate dehydrogenase (SDH), malate dehydrogenase (MDH) and significantly increased NADPH-Cytochorome reductase (NADPH-C reductase), cytochrome P450 (cyt-p450) and cytochrome b5 (cyt-b5).
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17574827 Buddhan S, Sivakumar R, Dhandapani N, Ganesan B, Anandan R: Protective effect of dietary squalene supplementation on mitochondrial function in liver of aged rats. Prostaglandins Leukot Essent Fatty Acids. 2007 Jun;76(6):349-55. Epub 2007 Jun 15.


The dietary supplementation of 2% squalene significantly minimized aging associated alterations in mitochondrial energy status by maintaining the activities of TCA cycle enzymes (isocitrate dehydrogenase, alpha-ketoglutarate dehydrogenase, succinate dehydrogenase and malate dehydrogenase) and respiratory marker enzymes (NADH dehydrogenase and cytochrome-c-oxidase) at higher level in the liver mitochondria of aged rats compared with unsupplemented controls.
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15919137 Savitha S, Sivarajan K, Haripriya D, Kokilavani V, Panneerselvam C: Efficacy of levo carnitine and alpha lipoic acid in ameliorating the decline in mitochondrial enzymes during aging. Clin Nutr. 2005 Oct;24(5):794-800.


METHODS: In the present study we have evaluated the efficacy of carnitine, a mitochondrial metabolite and lipoic acid, a potent antioxidant on the activities of the tri carboxylic acid (TCA) cycle enzymes like succinate dehydrogenase, malate dehydrogenase, alpha-ketoglutarate dehydrogenase, Isocitrate dehydrogenase and electron transport complex I-IV in young and aged heart mitochondria.
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