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Ponne S, Kumar CR, Boopathy R. Verapamil attenuates scopolamine induced cognitive deficits by averting oxidative stress and mitochondrial injury - A potential therapeutic agent for Alzheimer's Disease. Metab Brain Dis 2020; 35:503-515. [PMID: 31691145 DOI: 10.1007/s11011-019-00498-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Accepted: 09/20/2019] [Indexed: 12/12/2022]
Abstract
Alzheimer's disease (AD) is a multifactorial disorder where amyloid beta (Aβ) plaques, Ca2+ dysregulation, excessive oxidative stress, mitochondrial dysfunction and synaptic loss operate synergistically to bring about cholinergic deficits and dementia. New therapeutic interventions are gaining prominence as the morbidity and mortality of AD increases exponentially every year. Treating AD with antihypertensive drugs is thought to be a promising intervention; however, its mechanism of action of ameliorating AD needs further investigation. In this context, the present study explores the protective effect of verapamil, an antihypertensive agent of Ca2+ channel blocker (CCB) class against scopolamine-induced in vitro neurotoxicity and in vivo cognitive impairment. Supplementation of verapamil was found to attenuate oxidative stress by preventing mitochondrial injury, and augment the expression of genes involved in the cholinergic function (mACR1), synaptic plasticity (GAP43, SYP) and Ca2+-dependent memory-related genes (CREB1, CREBBP, BDNF). Further, verapamil treatment in mice attenuated the cognitive and behavioural deficits induced by scopolamine as measured by the elevated plus maze and passive avoidance test (P < 0.05). Thus, the present study demonstrates the neuroprotective effect of verapamil against the pathogenesis of AD such as oxidative stress, mitochondrial dysfunction and cognitive decline. These observations emphasize the importance of ‛Ca2+ dysregulation' and ‛mitochondrial dysfunction' theories in AD and recommends the supplementation of compounds that regulate Ca2+ homeostasis and mitochondrial function in susceptible AD individuals.
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Affiliation(s)
- Saravanaraman Ponne
- Department of Biotechnology, School of Biotechnology and Genetic Engineering, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India.
- Department of Biotechnology, Pondicherry University, Puducherry, Kalapet, 605014, India.
| | - Chinnadurai Raj Kumar
- Department of Biotechnology, School of Biotechnology and Genetic Engineering, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India
| | - Rathanam Boopathy
- Department of Biotechnology, School of Biotechnology and Genetic Engineering, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India
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2
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Sato T, Segawa M, Sekine S, Ito K. Mild depolarization is involved in troglitazone-induced liver mitochondrial membrane permeability transition via mitochondrial iPLA 2 activation. J Toxicol Sci 2019; 44:811-820. [DOI: 10.2131/jts.44.811] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Tomoyuki Sato
- The Laboratory of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Chiba University
| | - Masahiro Segawa
- The Laboratory of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Chiba University
| | - Shuichi Sekine
- The Laboratory of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Chiba University
| | - Kousei Ito
- The Laboratory of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Chiba University
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Rauckhorst AJ, Broekemeier KM, Pfeiffer DR. Regulation of the Ca(2+)-independent phospholipase A2 in liver mitochondria by changes in the energetic state. J Lipid Res 2014; 55:826-36. [PMID: 24586040 DOI: 10.1194/jlr.m043307] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The effect of electron transport chain redox status on activity of the mitochondrial Ca(2+)-independent phospholipase A2 (iPLA2) has been examined. When oxidizing NAD-linked substrates, the enzyme is not active unless deenergization occurs. Uncoupler, rotenone, antimycin A, and cyanide are equally effective at upregulating the enzyme, while oligomycin is ineffective. Thenoyltrifluoroacetone causes deenergization and activates the enzyme, but only if succinate is the respiratory substrate. These findings show that the mitochondrial iPLA2 responds to the energetic state overall, rather than to the redox status of individual electron transport chain complexes. With NAD-linked substrates, and using rotenone to deenergize, iPLA2 activation can be reversed by adding succinate to reestablish a membrane potential. For this purpose, ascorbate plus N,N,N'N'-tetramethyl-phenylenediamine can be used instead of succinate and is equally effective. With succinate as substrate, the membrane potential can be reduced in a graded and stable fashion by adding increasing concentrations of malonate, which is a competitive inhibitor of succinate utilization. A partial and stable activation of the iPLA2 accompanies partial deenergization. These findings suggest that in addition to the several functions that have been proposed, the mitochondrial iPLA2 may help to coordinate local capillary blood flow with changing energy demands.
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Affiliation(s)
- Adam J Rauckhorst
- Departments of Molecular and Cellular Biochemistry Ohio State University, Columbus, OH 43210
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Affiliation(s)
- M Zoratti
- CNR Unit for the Physiology of Mitochondria, Department of Biomedical Sciences, Padova, Italy
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Papadimitriou JC, Drachenberg CB, Shin ML, Trump BF. Ultrastructural studies of complement mediated cell death: a biological reaction model to plasma membrane injury. Virchows Arch 1994. [DOI: 10.1007/bf01069750] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Papadimitriou JC, Phelps PC, Shin ML, Smith MW, Trump BF. Effects of Ca2+ deregulation on mitochondrial membrane potential and cell viability in nucleated cells following lytic complement attack. Cell Calcium 1994; 15:217-27. [PMID: 8194101 DOI: 10.1016/0143-4160(94)90061-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
We have previously shown [Papadimitriou JC. Ramm LE. Drachenberg CB. Trump BF. Shin ML. (1991) J. Immunol., 147, 212-217] that formation of lytic C5b-9 channels on Ehrlich ascites tumor cells induced rapid depletion of adenine nucleotides associated with prelytic leakage preceding cell death. Extracellular Ca2+ concentration ([Ca2+]e) reduction by chelation markedly delayed the onset of cell death, although the adenine nucleotide leakage was enhanced. In the present study, we examined the temporal relationships between ionized cytosolic Ca2+ ([Ca2+]i), mitochondrial membrane potential (delta psi m) and cell death in individual cells by digital imaging fluorescence microscopy (DIFM), during the earliest phase of C5b-9 attack. The results showed an immediate, > 20-fold rise in [Ca2+]i, rapidly followed by dissipation of delta psi m and subsequent acute cell death. These events were markedly delayed by chelation of Ca2+e, but not by nominally Ca2+ free medium. Differing from previous reports indicating propidium iodide labeling of viable cells bearing C5b-9 channels, with DIFM we observed nuclear fluorescence with that marker only in association with cell death. These findings indicate that Ca2+ influx through lytic C5b-9 channels is responsible for the massive increase in [Ca2+]i, as well as for the rapid loss of delta psi m, followed by acute cell death. When this [Ca2+]i increase is prevented, the cell death is probably related to metabolic depletion.
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Affiliation(s)
- J C Papadimitriou
- Department of Pathology, University of Maryland School of Medicine, Baltimore
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Khan MA. Induction of mitochondrial alterations ex vivo in skeletal muscle. EXPERIMENTAL AND TOXICOLOGIC PATHOLOGY : OFFICIAL JOURNAL OF THE GESELLSCHAFT FUR TOXIKOLOGISCHE PATHOLOGIE 1992; 44:70-3. [PMID: 1617289 DOI: 10.1016/s0940-2993(11)80190-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The ultrastructural alterations of mitochondria were studied, following a fixation delay of 45 min, in the normal type II red muscle fibres of pigeon semimetapatagialis muscle. These muscle fibres, were devoid of myofibrillar degeneration; however, their mitochondria showed derangement. The latter included irregular orientation and loss of cristae, and clearing of the matrix. Some mitochondria showed myelin figures of varying complexity in the subsarcolemmal areas as well as in the interior of muscle fibres. These alterations bear striking resemblance to that seen during some lysosomal formation. The significance of these observations is discussed.
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Affiliation(s)
- M A Khan
- La Trobe University, Department of Human Biosciences, Bundoora Victoria, Australia
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Levrat C, Louisot P. Dual localization of the mitochondrial phospholipase A2: outer membrane contact sites and inner membrane. Biochem Biophys Res Commun 1992; 183:719-24. [PMID: 1550579 DOI: 10.1016/0006-291x(92)90542-s] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Mitochondria were fractionated according to a procedure which allowed to get free outer and inner membrane plus two distinct contact sites between the two membranes. The data indicate that phospholipase A2 is localized in outer membrane contact sites and in inner membrane. The enzyme activity is twice higher in the contact site fraction than in the free membrane. The major fatty acids released are linoleic and docosahexanoic acids.
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Affiliation(s)
- C Levrat
- Department of General and Medical Biochemistry, INSERM-CNRS U189, Lyon-Sud Medical School, Oullins, France
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Rustenbeck I, Eibl H, Lenzen S. Structural requirements of lysophospholipid-regulated mitochondrial Ca2+ transport. BIOCHIMICA ET BIOPHYSICA ACTA 1991; 1069:99-109. [PMID: 1932054 DOI: 10.1016/0005-2736(91)90109-l] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Analogues of lysophosphatidylcholine, including PAF (platelet-activating-factor) and HePC (an experimental anticancer drug), were studied for their influence on mitochondrial Ca2+ transport and membrane potential. Lysophospholipids released Ca2+ from mitochondria and reduced the maximal Ca2+ uptake. The structure-activity relations indicate that deprotonated head groups like phosphocholines yield active compounds while partially protonated head groups like phosphoethanolamines are essentially inactive. Structural requirements for the apolar part of the molecules were acyl or alkyl chain lengths of less than 18 carbon atoms at the C1-position of the glycerol backbone and residues of small size and/or low polarity at the C2-position. Choline lysophospholipids, but not ethanolamine lysophospholipids, may therefore induce mitochondrial Ca2+ efflux and become mediators of ischaemic tissue damage where dysregulated phospholipase A2 activity and an impairment of mitochondrial function are supposed to play a crucial role.
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Affiliation(s)
- I Rustenbeck
- Institute of Pharmacology and Toxicology, University of Göttingen, F.R.G
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Mokhova E, Arrigoni-Martelli E, Bellei M, Dedukhova V, Muscatello U, Starkov A, Bobyleva V. The protecting effect of L-carnitine on Ca(2+)-loaded rat liver mitochondria. FEBS Lett 1991; 289:187-9. [PMID: 1915847 DOI: 10.1016/0014-5793(91)81066-h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
It is shown that L-carnitine strongly increases the ability of rat liver mitochondria to respond to the train of Ca2+ additions by a transient stimulation of the State-4 respiration rate. Such an effect requires ATP and the L-carnitine efficiency strongly decreases when ATP is omitted. Oleate influences the mitochondria in a fashion opposite to that of L-carnitine. The oleate effect is strongly diminished by L-carnitine. Again, the L-carnitine effect requires ATP, and D-carnitine fails to substitute for L-carnitine. It is suggested that L-carnitine removes, in an ATP-dependent manner, endogenous or added fatty acids, which are involved in oxidative damage of Ca(2+)-loaded mitochondria.
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Affiliation(s)
- E Mokhova
- Institute of General Pathology, Modena, Italy
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11
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On the Inhibition of the Mitochondrial Inner Membrane Anion Uniporter by Cationic Amphiphiles and Other Drugs. J Biol Chem 1989. [DOI: 10.1016/s0021-9258(18)94216-x] [Citation(s) in RCA: 63] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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12
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Kirillova GP, Ablyayeva NA, Mokhova EN. Fast cold-induced activation of the external pathway of NADH oxidation in liver mitochondria of hyperthyroid rats. BIOCHIMICA ET BIOPHYSICA ACTA 1985; 806:75-80. [PMID: 3967007 DOI: 10.1016/0005-2728(85)90083-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The exposure of a cold-adapted rat for 15 min at 4 degrees C results in the appearance of measurable oxidation of added NADH via the external amytal- and antimycin-A-resistant pathway in liver mitochondria. This effect increases if the animal has been treated with thyroid gland preparation for 4-5 days. In vitro, the addition of Mg2+ or increase in the tonicity of incubation mixture suppresses external NADH oxidation. Addition of 70 mg X ml-1 serum albumin or 70 mg X ml-1 polyvinylpyrrolidone in the presence of Mg2+ and addition of 20 microM palmitic or 20 microM oleic acids induces to some extent external NADH oxidation in the mitochondria of control (nontreated) and of cold-adapted, thyroidgland-preparation-treated rats. It is concluded that hyperthyroid rats can be used as a model of cold-induced initiation of the external pathway of NADH oxidation. A relation between the increase of exogenous NADH oxidation and phospholipase A2 activity in liver mitochondria is discussed.
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Chern J, Bruckner G, Kinsella J. Effects of dietary trilinoelaidate on liver mitochondrial phospholipids and endogenous phospholipase activity. Nutr Res 1984. [DOI: 10.1016/s0271-5317(84)80136-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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14
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Liu MS, Takeda H. Endotoxin-induced stimulation on phospholipase A activities in dog hearts. BIOCHEMICAL MEDICINE 1982; 28:62-9. [PMID: 6756397 DOI: 10.1016/0006-2944(82)90055-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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15
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Zurini M, Hugentobler G, Gazzotti P. Activity of phospholipase A2 in the inner membrane of rat-liver mitochondria. EUROPEAN JOURNAL OF BIOCHEMISTRY 1981; 119:517-21. [PMID: 7308197 DOI: 10.1111/j.1432-1033.1981.tb05638.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The inner membrane of rat liver mitochondria contains a highly active phospholipase A2 which has alkaline pH optimum and requires Ca2+ in the micromolar range. The phospholipase is particularly active on the endogenous phosphatidylethanolamine and release relatively high amounts of docosahexanoic acid. The phospholipase A2 of mitochondria or mitoplasts is not dependent on calmodulin. Using fluorescamine-labelled mitoplasts there are indications that the enzyme is localized on both sides of the inner membrane.
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Siliprandi D, Rugolo M, Zoccarato F, Toninello A, Siliprandi N. Involvement of endogenous phospholipase A2 in Ca2+ and Mg2+ movement induced by inorganic phosphate and diamide in rat liver mitochondria. Biochem Biophys Res Commun 1979; 88:388-94. [PMID: 465045 DOI: 10.1016/0006-291x(79)92060-6] [Citation(s) in RCA: 41] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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19
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Role of hydrolysis of membrane lipids of mitochrondria in their thyroxine-induced swelling. Bull Exp Biol Med 1977. [DOI: 10.1007/bf00801684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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20
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Roche TE, Cate RL. Purification of porcine liver pyruvate dehydrogenase complex and characterization of its catalytic and regulatory properties. Arch Biochem Biophys 1977; 183:664-77. [PMID: 200177 DOI: 10.1016/0003-9861(77)90400-3] [Citation(s) in RCA: 96] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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21
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Yasuda M, Fujita T. Effect of lipid peroxidation on phospholipase A2 activity of rat liver mitochondria. JAPANESE JOURNAL OF PHARMACOLOGY 1977; 27:429-35. [PMID: 144207 DOI: 10.1254/jjp.27.429] [Citation(s) in RCA: 74] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Effect of lipid peroxidation on phospholipase A1 activity was examined in rat liver mitochondria. Content of lipid peroxides in rat liver mitochondria was markedly increased in the presence of ascorbic acid (0.1 mM) and ferrous ion (40 muM, as compared to the control. Phospholipase A2 activity in mitochondria was activated by approximately 60% after lipid peroxidation. Mg2+-activated ATPase activity in mitochondria was markedly stimulated by about 200% following treatment with ascorbic acid and ferrous ion. There was no difference in calcium content of mitochondria before and after lipid peroxidation.
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Wang P, Dechatelet LR, Waite M. Enzymes of phospholipid synthesis in Bacillus Calmette-Guerin induced rabbit alveolar macrophage. Characterization and localization of cytidine diphosphocholine phosphotransferase and monoacylphospholipid acyltransferase. BIOCHIMICA ET BIOPHYSICA ACTA 1976; 450:311-21. [PMID: 1009089 DOI: 10.1016/0005-2760(76)90004-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The rabbit alveolar macrophage is capable of renewing its plasma membrane by at least two metabolic pathways. It contains (1) a monoacylphospholipid acyltransferase, which catalyzes the synthesis of diacylphospholipids by recycling monoacylphospholipids produced by the action of phospholipases and (2) a cytidine diphosphocholine phosphotransferase (CDPcholine phosphotransferase), which catalyzes the last step in the synthesis de novo of diacylglycerophosphocholine. These activities have been characterized in the cell homogenate with respect to time, protein, pH optimum (for CDPcholine phosphotransferase), substrate specificity (for monoacylphospholipid acyltransferase) and cation requirement ( for CDPcholine phosphotransferase). Monoacylphospholipid acyltransferase activity is localized solely in the endoplasmic reticulum. On the other hand, the CDPcholine phosphotransferase activity can be measured in the endoplasmic reticulum and in the plasma membrane, characterized by both differential and gradient sedimentation techniques. In addition to the normal route of phospholipid synthesis in the endoplasmic reticulum, the rabbit alveolar macrophage may thus possess the capacity for in situ synthesis of phospholipids of plasma membrane as a mechanism for membrane renewal following phagocytosis.
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Lumb RH, Allen KF. Properties of microsomal phospholipases in rat liver and hepatoma. BIOCHIMICA ET BIOPHYSICA ACTA 1976; 450:175-84. [PMID: 10988 DOI: 10.1016/0005-2760(76)90089-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Phospholipase A1, A2 and lysophospholipase activities in microsomes of Novikoff hepatoma host rat liver and regenerating rat liver were compared using 1-[9', 10'-3H2]palmitoyl-2-[1'-14C] linoleoyl-sn-glycero-3-phosphoethanolamine, 1-[1' -3H-]hexadecyl-2-acyl-sn-glycero-3-phosphoethanolamine, and 1-[9', 10'-3H2]palmitoyl-sn-glycero-3-phosphoethanolamine as substrates. 1. Microsomes of all three tissues showed two pH dependent peaks of hydrolytic activity, one at pH 7.5 and another at pH 9.5. 2. Phospholipid hydrolytic activity in microsomes from host liver and regenerating liver require Ca2+ for hydrolysis at pH 9.5, but not at pH 7.5. Hepatoma microsomes require Ca2+ for activity at both pH values. 3. Phospholipase A1 activity, stimulated by addition of Triton X-100 to the incubation mixtures, was detected in both host liver and regenerating liver microsomes. There was no evidence of phospholipase A1 activity in hepatoma microsomes. 4. Phospholipase A2 was detected in microsomes of all three tissues using 1-[1'-3H] hexadecyl-2-acyl-sn-glycero-3-phosphoethanolamine as a substrate. The activity required calcium and was inhibited by Triton X-100. 5. Lysophospholipase activity was evident in the microsomes from all three tissues. The activity was inhibited by both Ca2+ and Triton X-100. 6. Differences were also detected between host liver and hepatoma microsomal phospholipid hydrolase activities with respect to the effect of increasing protein concentration, apparent Michaelis-Menten constants, and time course of the reaction.
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Relationship between configuration, function, and permeability in calcium-treated mitochondria. J Biol Chem 1976. [DOI: 10.1016/s0021-9258(17)33220-9] [Citation(s) in RCA: 467] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Abstract
It is proposed that uterine hypoxia, beginning initially with the uterine contractions in late pregnancy, leads to the increased formation of free fatty acids. The liberated fatty acids are then used to form prostaglandins and they can also act on mitochondria to release calcium. The released calcium can directly activate contractile proteins and/or can further stimulate phospholipase A (active at neutral pH) and thereby reinforce the progressive production of prostaglandins.
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Diplock AT. Metabolic aspects of selenium action and toxicity. CRC CRITICAL REVIEWS IN TOXICOLOGY 1976; 4:271-329. [PMID: 770077 DOI: 10.1080/10408447609164016] [Citation(s) in RCA: 141] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Guarnieri M, Nair PP, Sacktor B. The lipid composition of flight muscle mitochondria isolated from the blowfly, Phormia regina. Arch Biochem Biophys 1976; 172:672-8. [PMID: 1259426 DOI: 10.1016/0003-9861(76)90122-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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29
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Dohm GL, Barakat H, Stephenson TP, Pennington SN, Tapscott EB. Changes in muscle mitochondrial lipid composition resulting from training and exhaustive exercise. Life Sci 1975; 17:1075-80. [PMID: 1195997 DOI: 10.1016/0024-3205(75)90327-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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30
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Lawrence AJ, Moores GR. Activation of bee venom phospholipase A2 by fatty acids, aliphatic anhydrides and glutaraldehyde. FEBS Lett 1975; 49:287-91. [PMID: 803261 DOI: 10.1016/0014-5793(75)80768-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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31
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Aloia RC, Pengelley ET, Bolen JL. Changes in phospholipid composition in hibernating ground squirrel, Citellis lateralis, and their relationships to membrane function at reduced temperatures. Lipids 1974; 9:993-9. [PMID: 4444433 DOI: 10.1007/bf02533824] [Citation(s) in RCA: 33] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Storey BT, Keyhani E. Energy metabolism of spermatozoa. II. Comparison of pyruvate and fatty acid oxidation by mitochondria of rabbit epididymal spermatozoa. Fertil Steril 1974; 25:857-64. [PMID: 4420702 DOI: 10.1016/s0015-0282(16)40692-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Jain MK. Enzymic Hydrolysis of Various Components in Biomembranes and Related Systems. ACTA ACUST UNITED AC 1974. [DOI: 10.1016/s0070-2161(08)60848-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
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Aleksandrowicz Z, Swierczyński J, Wrzolkowa T. Protective effect of nupercaine on mitochondrial structure. BIOCHIMICA ET BIOPHYSICA ACTA 1973; 305:59-66. [PMID: 4719600 DOI: 10.1016/0005-2728(73)90231-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Abstract
In this paper recent experimental work on rat liver is discussed which is considered to indicate that a primary function of vitamin E in vivo may be to inhibit the oxidation of selenide-containing proteins present in mitochondria and in smooth endoplasmic reticulum. On the basis of molecular model building studies, it is also suggested that the well-known nutritional relationships between vitamin E and dietary polyunsaturated lipids may be due to the occurrence within normal membranes of specific complexes between the vitamin and some of the molecules of polyunsaturated phospholipids. Without the vitamin, membranes may have an abnormally high permeability and they may be subject to degradation by endogenous phospholipases in vivo, as well as being abnormally susceptible to damage in vitro by dialuric acid and hydrogen peroxide.
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Affiliation(s)
- A T. Diplock
- Department of Biochemistry, Royal Free Hospital School of Medicine, University of London, 8 Hunter Street, WC1N 1BP, London, England
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Lucy JA. Functional and structural aspects of biological membranes: a suggested structural role for vitamin E in the control of membrane permeability and stability. Ann N Y Acad Sci 1972; 203:4-11. [PMID: 4512106 DOI: 10.1111/j.1749-6632.1972.tb27849.x] [Citation(s) in RCA: 299] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Reduced Triphosphopyridine Nucleotide Oxidase-catalyzed Alterations of Membrane Phospholipids. J Biol Chem 1972. [DOI: 10.1016/s0021-9258(19)44652-8] [Citation(s) in RCA: 58] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Nachbaur J, Colbeau A, Vignais PM. Distribution of membrane-confined phospholipases A in the rat hepatocyte. BIOCHIMICA ET BIOPHYSICA ACTA 1972; 274:426-46. [PMID: 5049005 DOI: 10.1016/0005-2736(72)90189-7] [Citation(s) in RCA: 131] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Scarpa A, Lindsay JG. Maintenance of energy-linked functions in rat-liver mitochondria aged in the presence of nupercaine. EUROPEAN JOURNAL OF BIOCHEMISTRY 1972; 27:401-7. [PMID: 4626191 DOI: 10.1111/j.1432-1033.1972.tb01851.x] [Citation(s) in RCA: 82] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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French SW, Todoroff T, Norum ML, Ihrig TJ. Effect of lipid hydrolysis and phosphate swelling on the structural and functional integrity of mitochondria. Exp Mol Pathol 1972; 16:16-32. [PMID: 5060120 DOI: 10.1016/0014-4800(72)90017-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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