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Peleman C, Francque S, Berghe TV. Emerging role of ferroptosis in metabolic dysfunction-associated steatotic liver disease: revisiting hepatic lipid peroxidation. EBioMedicine 2024; 102:105088. [PMID: 38537604 PMCID: PMC11026979 DOI: 10.1016/j.ebiom.2024.105088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 02/22/2024] [Accepted: 03/12/2024] [Indexed: 04/14/2024] Open
Abstract
Metabolic dysfunction-associated steatohepatitis (MASH) is characterised by cell death of parenchymal liver cells which interact with their microenvironment to drive disease activity and liver fibrosis. The identification of the major death type could pave the way towards pharmacotherapy for MASH. To date, increasing evidence suggest a type of regulated cell death, named ferroptosis, which occurs through iron-catalysed peroxidation of polyunsaturated fatty acids (PUFA) in membrane phospholipids. Lipid peroxidation enjoys renewed interest in the light of ferroptosis, as druggable target in MASH. This review recapitulates the molecular mechanisms of ferroptosis in liver physiology, evidence for ferroptosis in human MASH and critically appraises the results of ferroptosis targeting in preclinical MASH models. Rewiring of redox, iron and PUFA metabolism in MASH creates a proferroptotic environment involved in MASH-related hepatocellular carcinoma (HCC) development. Ferroptosis induction might be a promising novel approach to eradicate HCC, while its inhibition might ameliorate MASH disease progression.
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Affiliation(s)
- Cédric Peleman
- Laboratory of Experimental Medicine and Paediatrics, Infla-Med Centre of Excellence, University of Antwerp, Antwerp, Belgium; Department of Gastroenterology and Hepatology, Antwerp University Hospital, Edegem, Belgium
| | - Sven Francque
- Laboratory of Experimental Medicine and Paediatrics, Infla-Med Centre of Excellence, University of Antwerp, Antwerp, Belgium; Department of Gastroenterology and Hepatology, Antwerp University Hospital, Edegem, Belgium.
| | - Tom Vanden Berghe
- VIB-UGent Center for Inflammation Research, Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium; Laboratory of Pathophysiology, Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
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Jaldani S, Sarfaraz Khabbaz E, Jooyandeh M, Farhoosh R. Kinetics of simultaneous change in the concentration of total lipid hydroperoxides and total conjugated dienes during peroxidation of canola, sunflower, and olive oils. Food Chem 2024; 435:137605. [PMID: 37801768 DOI: 10.1016/j.foodchem.2023.137605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 09/12/2023] [Accepted: 09/25/2023] [Indexed: 10/08/2023]
Abstract
The concentration of total lipid hydroperoxides (LOOH) and total conjugated dienes (CD) were simultaneously monitored during peroxidation of canola, sunflower, and olive oils at 90 °C. Significantly different kinetic parameters differentiating the two analytical variables as a function of the fatty acid compositions as well as the constituting minor components of the oils were obtained. This was attributed to the fact that LOOH represent essentially the fundamental primary oxidation products, including non-conjugated (nCDOOH) and conjugated (CDOOH) diene hydroperoxides, whereas CD stand actually for CDOOH and conjugated diene non-hydroperoxides (CDnOOH) as the primary and secondary, respectively, oxidation products. The simultaneous study on the kinetics of change in [LOOH] and [CD] provided invaluable insights into lipid peroxidation with respect to the different species of conjugated/non-conjugated diene hydroperoxides/non-hydroperoxides.
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Affiliation(s)
- Shima Jaldani
- Ferdowsi University of Mashhad, Faculty of Agriculture, Department of Food Science and Technology, P.O. Box: 91775-1163 Mashhad, Iran
| | - Elham Sarfaraz Khabbaz
- Ferdowsi University of Mashhad, Faculty of Agriculture, Department of Food Science and Technology, P.O. Box: 91775-1163 Mashhad, Iran
| | - Melika Jooyandeh
- Ferdowsi University of Mashhad, Faculty of Agriculture, Department of Food Science and Technology, P.O. Box: 91775-1163 Mashhad, Iran
| | - Reza Farhoosh
- Ferdowsi University of Mashhad, Faculty of Agriculture, Department of Food Science and Technology, P.O. Box: 91775-1163 Mashhad, Iran.
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Shahtout JL, Eshima H, Ferrara PJ, Maschek JA, Cox JE, Drummond MJ, Funai K. Inhibition of the skeletal muscle Lands cycle ameliorates weakness induced by physical inactivity. J Cachexia Sarcopenia Muscle 2024; 15:319-330. [PMID: 38123161 PMCID: PMC10834354 DOI: 10.1002/jcsm.13406] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 10/12/2023] [Accepted: 11/15/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND Lipid hydroperoxides (LOOH) have been implicated in skeletal muscle atrophy with age and disuse. Lysophosphatidylcholine acyltransferase 3 (LPCAT3), an enzyme of the Lands cycle, conjugates a polyunsaturated fatty acyl chain to a lysophospholipid to form a polyunsaturated fatty acid containing phospholipid (PUFA-PL) molecule, providing substrates for LOOH propagation. Previous studies suggest that inhibition of the Lands cycle is an effective strategy to suppress LOOH. Mice with skeletal muscle-specific tamoxifen-inducible knockout of LPCAT3 (LPCAT3-MKO) were utilized to determine if muscle-specific attenuation of LOOH may alleviate muscle atrophy and weakness with disuse. METHODS LPCAT3-MKO and control mice underwent 7 days of sham or hindlimb unloading (HU model) to study muscle mass and force-generating capacity. LOOH was assessed by quantifying 4-hydroxynonenal (4-HNE)-conjugated peptides. Quantitative PCR and lipid mass spectrometry were used to validate LPCAT3 deletion. RESULTS Seven days of HU was sufficient to induce muscle atrophy and weakness concomitant to a ~2-fold increase in 4-HNE (P = 0.0069). Deletion of LPCAT3 reversed HU-induced increase in muscle 4-HNE (P = 0.0256). No difference was found in body mass, body composition, or caloric intake between genotypes. The soleus (SOL) and plantaris (PLANT) muscles of the LPCAT3-MKO mice experienced ~15% and ~40% less atrophy than controls, respectively. (P = 0.0011 and P = 0.0265). Type I and IIa SOL myofibers experienced a ~40% decrease in cross sectional area (CSA), which was attenuated to only 15% in the LPCAT3-MKO mice (P = 0.0170 and P = 0.0411, respectively). Strikingly, SOL muscles were fully protected and extensor digitorum longus (EDL) muscles experienced a ~35% protection from HU-induced reduction in force-generating capacity in the LPCAT3-MKO mice compared with controls (P < 0.0001 for both muscles). CONCLUSIONS Our findings demonstrate that attenuation of skeletal muscle lipid hydroperoxides is sufficient to restore its function, in particular a protection from reduction in muscle specific force. Our findings suggest muscle lipid peroxidation contributes to atrophy and weakness induced by disuse in mice.
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Affiliation(s)
- Justin L. Shahtout
- Diabetes and Metabolism Research CenterUniversity of UtahSalt Lake CityUtahUSA
- Department of Physical Therapy and Athletic TrainingUniversity of UtahSalt Lake CityUtahUSA
| | - Hiroaki Eshima
- Diabetes and Metabolism Research CenterUniversity of UtahSalt Lake CityUtahUSA
- Molecular Medicine ProgramUniversity of UtahSalt Lake CityUtahUSA
- Nagasaki International UniversitySaseboJapan
| | - Patrick J. Ferrara
- Diabetes and Metabolism Research CenterUniversity of UtahSalt Lake CityUtahUSA
- Molecular Medicine ProgramUniversity of UtahSalt Lake CityUtahUSA
| | - J. Alan Maschek
- Diabetes and Metabolism Research CenterUniversity of UtahSalt Lake CityUtahUSA
- Metabolomics, Mass Spectrometry, and Proteomics CoreUniversity of UtahSalt Lake CityUtahUSA
| | - James E. Cox
- Diabetes and Metabolism Research CenterUniversity of UtahSalt Lake CityUtahUSA
- Metabolomics, Mass Spectrometry, and Proteomics CoreUniversity of UtahSalt Lake CityUtahUSA
- Department of BiochemistryUniversity of UtahSalt Lake CityUtahUSA
| | - Micah J. Drummond
- Diabetes and Metabolism Research CenterUniversity of UtahSalt Lake CityUtahUSA
- Department of Physical Therapy and Athletic TrainingUniversity of UtahSalt Lake CityUtahUSA
- Molecular Medicine ProgramUniversity of UtahSalt Lake CityUtahUSA
- Department of Nutrition and Integrative PhysiologyUniversity of UtahSalt Lake CityUtahUSA
| | - Katsuhiko Funai
- Diabetes and Metabolism Research CenterUniversity of UtahSalt Lake CityUtahUSA
- Department of Physical Therapy and Athletic TrainingUniversity of UtahSalt Lake CityUtahUSA
- Molecular Medicine ProgramUniversity of UtahSalt Lake CityUtahUSA
- Department of BiochemistryUniversity of UtahSalt Lake CityUtahUSA
- Department of Nutrition and Integrative PhysiologyUniversity of UtahSalt Lake CityUtahUSA
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Havaux M. Review of Lipid Biomarkers and Signals of Photooxidative Stress in Plants. Methods Mol Biol 2023; 2642:111-128. [PMID: 36944875 DOI: 10.1007/978-1-0716-3044-0_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
The degree of unsaturation of plant lipids is high, making them sensitive to oxidation. They thus constitute primary targets of reactive oxygen species and oxidative stress. Moreover, the hydroperoxides generated during lipid peroxidation decompose in a variety of secondary products which can propagate oxidative stress or trigger signaling mechanisms. Both primary and secondary products of lipid oxidation are helpful markers of oxidative stress in plants. This chapter describes a number of methods that have been developed to measure those biomarkers and signals, with special emphasis on the monitoring of photooxidative stress. Depending on their characteristics, those lipid markers provide information not only on the oxidation status of plant tissues but also on the origin of lipid peroxidation, the localization of the damage, or the type of reactive oxygen species involved.
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Affiliation(s)
- Michel Havaux
- Aix-Marseille University, CEA, CNRS, UMR7265, Bioscience and Biotechnology Institute of Aix-Marseille, CEA/Cadarache, Saint-Paul-lez-Durance, France.
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Munné-Bosch S, Puig S, Fenollosa E, Casadesús A, Fernández E. Vitamin E protects from lipid peroxidation during winter stress in the seagrass Cymodocea nodosa. Planta 2022; 255:41. [PMID: 35038021 PMCID: PMC8763757 DOI: 10.1007/s00425-022-03825-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 01/07/2022] [Indexed: 06/14/2023]
Abstract
Adjustments in the antenna size and α-tocopherol contents provide protection from sustained damage in leaves of a seagrass, while low vitamin E contents appear to be enough to protect rhizomes (which appear to be more cold tolerant than leaves). Despite low temperatures can adversely affect the proper growth and development of marine angiosperms, by, among other processes, increasing reactive oxygen species production and causing oxidative damage to lipid membranes, the role of vitamin E in seagrasses, such as Cymodocea nodosa has not been explored thus far. Here, we aimed to better understand the possible role of this chain-breaking (peroxyl radical-trapping) antioxidant in response to low temperatures, and most particularly in relation to the occurrence of photo-inhibition and lipid peroxidation. Low temperatures caused an important desiccation of leaves, but not of rhizomes, which were much more tolerant to cold stress than leaves. Cold stress during winter was associated with chlorophyll loss and transient photo-inhibition, as indicated by reversible reductions in the Fv/Fm ratio. Adjustments in pigment antenna size and vitamin E contents per unit of chlorophyll during winter may help protect the photosynthetic apparatus from sustained photo-inhibitory damage and lipid peroxidation events in leaves. Rhizomes also accumulated significant amounts of vitamin E, although to a much lesser extent than leaves, and kept protected from lipid peroxidation during winter, as indicated by malondialdehyde contents, a product from secondary lipid peroxidation. It is concluded that vitamin E can help protect both leaves and rhizomes from lipid peroxidation, although cold stress during winter can cause transient photo-inhibition of the photosynthetic apparatus, in C. nodosa.
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Affiliation(s)
- Sergi Munné-Bosch
- Department of Evolutionary Biology, Ecology and Environmental Sciences, University of Barcelona, Av. Diagonal 643, 08028, Barcelona, Spain.
- Research Institute of Biodiversity (IrBio), Faculty of Biology, University of Barcelona, Av. Diagonal 643, 08028, Barcelona, Spain.
| | - Sandra Puig
- Department of Evolutionary Biology, Ecology and Environmental Sciences, University of Barcelona, Av. Diagonal 643, 08028, Barcelona, Spain
| | - Erola Fenollosa
- Department of Evolutionary Biology, Ecology and Environmental Sciences, University of Barcelona, Av. Diagonal 643, 08028, Barcelona, Spain
- Research Institute of Biodiversity (IrBio), Faculty of Biology, University of Barcelona, Av. Diagonal 643, 08028, Barcelona, Spain
| | - Andrea Casadesús
- Department of Evolutionary Biology, Ecology and Environmental Sciences, University of Barcelona, Av. Diagonal 643, 08028, Barcelona, Spain
- Research Institute of Biodiversity (IrBio), Faculty of Biology, University of Barcelona, Av. Diagonal 643, 08028, Barcelona, Spain
| | - Estrella Fernández
- Department of Evolutionary Biology, Ecology and Environmental Sciences, University of Barcelona, Av. Diagonal 643, 08028, Barcelona, Spain
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Farhoosh R. New insights into the kinetic and thermodynamic evaluations of lipid peroxidation. Food Chem 2021; 375:131659. [PMID: 34865926 DOI: 10.1016/j.foodchem.2021.131659] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 11/01/2021] [Accepted: 11/20/2021] [Indexed: 11/27/2022]
Abstract
Simultaneous evaluations over the whole practical range of peroxidation, including the initiation and propagation phases, provide more informative and reliable data than single-parameter analyses being mostly employed only over the course of the initiation phase. Besides an overview on the dominant mechanisms governing the initiation and propagation phases, this article highlights a number of unifying parameters that represent inclusively the two phases. Then, the reliable method to calculate induction period and critical reverse micelle concentration of lipid hydroperoxides as the two interstitial parameters when transitioning from the initiation to the propagation phase is reviewed. Next, a reconsidered form of the conventional methodology on the kinetics of chain-breaking antioxidants is presented. After that, the Arrhenius kinetic and thermodynamic Eyring-Polanyi parameters calculated from the initiation, composite, and decomposition rate constants are compared in order to assess oxidative stabilities. Finally, shelf-life predictions based on a number of proposed end-points of peroxidation are addressed.
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Affiliation(s)
- Reza Farhoosh
- Ferdowsi University of Mashhad, Faculty of Agriculture, Department of Food Science and Technology, P.O. Box: 91775-1163, Mashhad, Iran.
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Kroth A, Santos MDCQ, Borella da Silva TC, Santos Silveira EM, Partata WA. Aqueous leaf extract from Luehea divaricata Mart. Modulates oxidative stress markers in the spinal cord of rats with neuropathic pain. J Ethnopharmacol 2021; 268:113674. [PMID: 33301911 DOI: 10.1016/j.jep.2020.113674] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 11/30/2020] [Accepted: 12/04/2020] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Reactive oxygen species (ROS) play an important role in neuropathic pain (i.e., pain caused by lesion or disease of the somatosensory system). We showed previously that the aqueous extract prepared from Luehea divaricata leaves, a plant explored by native ethnic groups of Brazil to treat different pathologic conditions, exhibits good antioxidant activity and induces analgesia in rats with neuropathic pain (J Ethnopharmacol, 2020; 256:112761. doi: 10.1016/j.jep.2020.112761). The effect was comparable to that of gabapentin, a drug recommended as first-line treatment for neuropathic pain. However, increasing evidence has indicated the need to accurately determine the oxidative stress level of an individual before prescribing supplemental antioxidants. AIM OF THE STUDY This study assessed the effects of the oral administration of aqueous extract from leaves of L. divaricata on the sciatic functional index (SFI) and spinal-cord pro-oxidant and antioxidant markers of rats with neuropathic pain. MATERIALS AND METHODS Placement of four loose chromic thread ligatures around the sciatic nerve produced chronic constriction injury (CCI) of the sciatic nerve, a commonly employed animal model to study neuropathic pain. Aqueous extract from leaves of L. divaricata (100, 300, 500 and 1000 mg/kg), gabapentin (50 mg/kg) and aqueous extract (500 mg/kg) + gabapentin (30 mg/kg) were administrated per gavage daily for 10 or 35 days post-CCI. Antinociception was assessed using the von Frey test while SFI showed functional recovery post-nerve lesion throughout the experimental period. At days 10 and 35 post-surgery, the lumbosacral spinal cord and a segment of the injured sciatic nerve were dissected out and used to determine lipid hydroperoxide levels and total antioxidant capacity (TAC). The spinal cord was also used to determine superoxide anion generation (SAG), hydrogen peroxide (H2O2) levels and total thiol content. RESULTS As expected, the extract, gabapentin and extract + gabapentin induced antinociception in CCI rats. While no significant functional recovery was found at 10 days post-CCI, a significant recovery was found in SFI of extract-treated CCI rats at 21 and 35 days post-CCI. A significant functional recovery was found already at day 10 post-CCI in gabapentin and gabapentin + extract-treated CCI rats. The extract treatment prevented increases in lipid hydroperoxides levels and TAC in injured sciatic nerve, which were found in this tissue of vehicle-treated rats at 10 days post-CCI. Extract also prevented an increase in SAG, H2O2 and lipid hydroperoxides levels in the spinal cord, which were elevated in this tissue of vehicle-treated rats at 10 and 35 days post-CCI. Extract also prevented a decrease in total thiol content and an increase in TAC in the spinal cord of CCI rats in these same time periods. CONCLUSIONS Aqueous extract from L. divaricata leaves was demonstrated, for the first time, to improve SFI and modulate oxidative stress markers in injured sciatic nerve and spinal cord of CCI rats. Thus, the antinociceptive effect of the extract involves modulation of oxidative stress markers in injured sciatic nerve and spinal cord.
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Affiliation(s)
- Adarly Kroth
- Área Ciências da Vida e Saúde, Universidade do Oeste de Santa Catarina, Rua Getúlio Vargas, 2125, Bairro Flor da Serra, CEP 89600-000, Joaçaba, SC, Brazil
| | - Maria do Carmo Quevedo Santos
- Departamento de Fisiologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite, 500, Bairro Farroupilha, CEP 90050-170, Porto Alegre, RS, Brazil
| | - Thaisla Cristiane Borella da Silva
- Departamento de Fisiologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite, 500, Bairro Farroupilha, CEP 90050-170, Porto Alegre, RS, Brazil
| | - Elza Maria Santos Silveira
- Departamento de Fisiologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite, 500, Bairro Farroupilha, CEP 90050-170, Porto Alegre, RS, Brazil
| | - Wania Aparecida Partata
- Departamento de Fisiologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite, 500, Bairro Farroupilha, CEP 90050-170, Porto Alegre, RS, Brazil.
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Martini S, Tagliazucchi D, Minelli G, Lo Fiego DP. Influence of linseed and antioxidant-rich diets in pig nutrition on lipid oxidation during cooking and in vitro digestion of pork. Food Res Int 2020; 137:109528. [PMID: 33233160 DOI: 10.1016/j.foodres.2020.109528] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 06/25/2020] [Accepted: 07/08/2020] [Indexed: 11/18/2022]
Abstract
Enrichment of pig diets with polyunsaturated fatty acids (PUFA) is considered an emerging strategy to increase their intake in the human diet. However, PUFA are particularly vulnerable to oxidative reactions leading to the generation of toxic compounds. The aim of this study was to evaluate the effect of supplementation of pig diets with extruded linseed (L), either or not in combination with synthetic antioxidants (E, tocopheryl-acetate and selenium) or natural extracts (P, grape-skin and oregano), and basal diet (C, without linseed) on the oxidative stability in raw, grilled and in vitro digested pork. The diet supplementation with antioxidant-rich ingredients resulted in the accumulation of specific metabolites in meat. Actually, 11 different phenolic- and 6 tocopherol-derived metabolites were identified by UHPLC/HR-MS. These metabolites were potentially correlated with the reduction in the oxidative phenomena occurring during meat cooking and digestion. Specifically, 16% and 35% reduction in the amounts of lipid hydroperoxides and TBA-RS were assessed after cooking of meat from P diet, respect to the L diet. Diet supplementations with α-tocopheryl acetate and selenium reduced the oxidative reactions only during meat cooking. A significant reduction was attended at the end of in vitro digestion, showing about 24% and 34% hydroperoxides and TBA-RS concentration reductions, respectively, in P diet samples respect to the L ones. Thus, our study suggests that the appearance of phenolic metabolites in meat could be associated to a reduction in the oxidative phenomena during meat cooking and digestion.
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Affiliation(s)
- Serena Martini
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Amendola 2, 42122 Reggio Emilia, Italy.
| | - Davide Tagliazucchi
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Amendola 2, 42122 Reggio Emilia, Italy; Interdepartmental Research Centre for Agri-Food Biological Resources Improvement and Valorisation (BIOGEST-SITEIA), University of Modena and Reggio Emilia, Via Amendola 2, 42122 Reggio Emilia, Italy
| | - Giovanna Minelli
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Amendola 2, 42122 Reggio Emilia, Italy; Interdepartmental Research Centre for Agri-Food Biological Resources Improvement and Valorisation (BIOGEST-SITEIA), University of Modena and Reggio Emilia, Via Amendola 2, 42122 Reggio Emilia, Italy
| | - Domenico Pietro Lo Fiego
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Amendola 2, 42122 Reggio Emilia, Italy; Interdepartmental Research Centre for Agri-Food Biological Resources Improvement and Valorisation (BIOGEST-SITEIA), University of Modena and Reggio Emilia, Via Amendola 2, 42122 Reggio Emilia, Italy
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Chen Z, Liang Q, Wu Y, Gao Z, Kobayashi S, Patel J, Li C, Cai F, Zhang Y, Liang C, Chiba H, Hui SP. Comprehensive lipidomic profiling in serum and multiple tissues from a mouse model of diabetes. Metabolomics 2020; 16:115. [PMID: 33067714 DOI: 10.1007/s11306-020-01732-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Accepted: 09/28/2020] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Diabetes mellitus is a serious metabolic disorder causing multiple organ damage in human. However, the lipidomic profiles in different organs and their associations are rarely studied in either diabetic patients or animals. OBJECTIVES To evaluate and compare the characteristics of lipid species in serum and multiple tissues in a diabetic mouse model. METHODS Semi-quantitative profiling analyses of intact and oxidized lipids were performed in serum and multiple tissues from a diabetic mouse model fed a high fat diet and treated with streptozotocin by using LC/HRMS and MS/MS. The total content of each lipid class, and the tissue-specific lipid species in all tissue samples were determined and compared by multivariate analyses. RESULTS The diabetic mouse model displayed characteristic differences in serum and multiple organs: the brain and heart showed the largest reduction in cardiolipin, while the kidney had more alterations in triacylglycerol. Interestingly, the lipidomic differences also existed between different regions of the same organ: cardiolipin species with highly polyunsaturated fatty acyls decreased only in atrium but not in ventricle, while renal cortex showed longer fatty acyl chains for both increased and decreased triacylglycerol species than renal medulla. Importantly, diabetes caused an accumulation of lipid hydroperoxides, suggesting that oxidative stress was induced in all organs except for the brain during the development of diabetes. CONCLUSIONS These findings provided novel insight into the organ-specific relationship between diabetes and lipid metabolism, which might be useful for evaluating not only diabetic tissue injury but also the effectiveness of diabetic treatments.
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Affiliation(s)
- Zhen Chen
- Faculty of Health Sciences, Hokkaido University, Kita-12, Nishi-5, Kita-ku, Sapporo, 060-0812, Japan
| | - Qiangrong Liang
- Department of Biomedical Sciences, New York Institute of Technology College of Osteopathic Medicine, Old Westbury, NY, 11548, USA
| | - Yue Wu
- Faculty of Health Sciences, Hokkaido University, Kita-12, Nishi-5, Kita-ku, Sapporo, 060-0812, Japan
| | - Zijun Gao
- Faculty of Health Sciences, Hokkaido University, Kita-12, Nishi-5, Kita-ku, Sapporo, 060-0812, Japan
| | - Satoru Kobayashi
- Department of Biomedical Sciences, New York Institute of Technology College of Osteopathic Medicine, Old Westbury, NY, 11548, USA
| | - Joy Patel
- Department of Biomedical Sciences, New York Institute of Technology College of Osteopathic Medicine, Old Westbury, NY, 11548, USA
| | - Cairong Li
- Clinical Medical College, Hubei University of Science and Technology, 437100, Xianning, China
| | - Fei Cai
- Hubei Key Laboratory of Diabetes and Angiopathy, Hubei University of Science and Technology, 437100, Xianning, China
| | - Youhua Zhang
- Department of Biomedical Sciences, New York Institute of Technology College of Osteopathic Medicine, Old Westbury, NY, 11548, USA
| | - Chongsheng Liang
- Faculty of Health Sciences, Hokkaido University, Kita-12, Nishi-5, Kita-ku, Sapporo, 060-0812, Japan
| | - Hitoshi Chiba
- Department of Nutrition, Sapporo University of Health Sciences, Nakanuma Nishi-4-2-1-15, Higashi, Sapporo, 007-0894, Japan
| | - Shu-Ping Hui
- Faculty of Health Sciences, Hokkaido University, Kita-12, Nishi-5, Kita-ku, Sapporo, 060-0812, Japan.
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Darwish WS, Chen Z, Li Y, Tan H, Chiba H, Hui SP. Deoxynivalenol-induced alterations in the redox status of HepG2 cells: identification of lipid hydroperoxides, the role of Nrf2-Keap1 signaling, and protective effects of zinc. Mycotoxin Res 2020; 36:287-99. [PMID: 32076947 DOI: 10.1007/s12550-020-00392-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Revised: 02/09/2020] [Accepted: 02/12/2020] [Indexed: 01/20/2023]
Abstract
Deoxynivalenol (DON) is a type B trichothecenes that is widely contaminating human and animal foods, leading to several toxicological implications if ingested. Induction of oxidative stress and production of lipid peroxides were suggested to be the reasons for DON-induced cytotoxicity. However, detailed and comprehensive profiling of DON-related lipid hydroperoxides was not identified. Furthermore, the mechanisms behind DON-induced cytotoxicity and oxidative stress have received less attention. Zinc (Zn) is an essential element that has antioxidant activities; however, the protective effects of Zn against DON-induced adverse effects were not examined. Therefore, this study was undertaken to investigate DON-induced cytotoxicity and oxidative damage to human HepG2 cell lines. Furthermore, a quantitative estimation for the formed lipid hydroperoxides was conducted using LC-MS/MS. In addition, DON-induced transcriptomic changes on the inflammatory markers and antioxidant enzymes were quantitatively examined using qPCR. The protective effects of Zn against DON-induced cytotoxicity and oxidative stress, the formation of lipid hydroperoxides (LPOOH), and antioxidant status in HepG2 cells were investigated. Finally, the effects of DON and Zn on the Nrf2-Keap1 pathway were further explored. The achieved results indicated that DON caused significant cytotoxicity in HepG2 cells accompanied by significant oxidative damage and induction of the inflammatory markers. Identification of DON-related LPOOH revealed the formation of 22 LPOOH species including 14 phosphatidylcholine hydroperoxides, 5 triacylglycerol hydroperoxides, and 3 cholesteryl ester hydroperoxides. DON caused significant downregulation of Nrf2-regulated antioxidant enzymes. Zn administration led to significant protection of HepG2 cells against DON-induced adverse effects, probably via activation of the Nrf2-Keap1 pathway.
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Li Y, Darwish WS, Chen Z, Tan H, Wu Y, Suzuki H, Chiba H, Hui SP. Identification of lead-produced lipid hydroperoxides in human HepG2 cells and protection using rosmarinic and ascorbic acids with a reference to their regulatory roles on Nrf2-Keap1 antioxidant pathway. Chem Biol Interact 2019; 314:108847. [PMID: 31610155 DOI: 10.1016/j.cbi.2019.108847] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 09/22/2019] [Accepted: 10/09/2019] [Indexed: 12/12/2022]
Abstract
Lead (Pb) is one of the toxic heavy metals that have several toxicological implications including cytotoxicities and oxidative stress. The release of reactive oxygen species (ROS) usually initiates lipid peroxidation and resulting in inflammation and tissue injury. However, the detailed identification of the Pb-produced lipid hydroperoxides has received little attention. Furthermore, the mechanisms behind such effects are less informed. Therefore, this study firstly investigated Pb-produced lipid hydroperoxides in human HepG2 cells using LC/MS. The effects of Pb on the antioxidant enzymes were additionally examined using qPCR and their dependent activities. As a protection trial, the ameliorative effects of rosmarinic (RMA) and ascorbic (ASA) acids on Pb-induced cytotoxicity and oxidative stress and their regulatory effects on Nrf2/Keap1 pathway were investigated. The achieved results confirmed cytotoxicity and oxidative damage of Pb on HepG2 cells. In addition, 20 lipid hydroperoxides (LOOH) were identified including 11 phosphatidylcholine hydroperoxides (PCOOH), 5 triacylglycerol hydroperoxides (TGOOH) and 4 cholesteryl ester hydroperoxides (CEOOH). The most dominant LOOH species were PCOOH 34:2, PCOOH 34:3, PCOOH 38:7, TGOOH 60:14, TGOOH 60:15, CEOOH 18:3 and CEOOH 20:4. Pb significantly downregulated Nrf2-regulated antioxidant enzymes at both the pretranscriptional and functional levels. Co-exposure of HepG2 cells to RMA and ASA significantly reduced Pb-produced adverse outcomes. This protection occurred via activation Nrf2-Keap1 antioxidant pathway.
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Affiliation(s)
- Yonghan Li
- Laboratory of Advanced Lipid Analysis, Faculty of Health Sciences, Hokkaido University, Kita 12, Nishi 5, Sapporo, 060-0812, Japan
| | - Wageh Sobhy Darwish
- Laboratory of Advanced Lipid Analysis, Faculty of Health Sciences, Hokkaido University, Kita 12, Nishi 5, Sapporo, 060-0812, Japan; Food Control Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44519, Egypt
| | - Zhen Chen
- Laboratory of Advanced Lipid Analysis, Faculty of Health Sciences, Hokkaido University, Kita 12, Nishi 5, Sapporo, 060-0812, Japan
| | - Hui Tan
- Laboratory of Advanced Lipid Analysis, Faculty of Health Sciences, Hokkaido University, Kita 12, Nishi 5, Sapporo, 060-0812, Japan
| | - Yue Wu
- Laboratory of Advanced Lipid Analysis, Faculty of Health Sciences, Hokkaido University, Kita 12, Nishi 5, Sapporo, 060-0812, Japan
| | - Hirotaka Suzuki
- Laboratory of Advanced Lipid Analysis, Faculty of Health Sciences, Hokkaido University, Kita 12, Nishi 5, Sapporo, 060-0812, Japan
| | - Hitoshi Chiba
- Department of Nutrition, Sapporo University of Health Sciences, Nakanuma Nishi 4-2-1-15, Higashi Ku, Sapporo, 007-0894, Japan
| | - Shu-Ping Hui
- Laboratory of Advanced Lipid Analysis, Faculty of Health Sciences, Hokkaido University, Kita 12, Nishi 5, Sapporo, 060-0812, Japan.
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Cukier AMO, Therond P, Didichenko SA, Guillas I, Chapman MJ, Wright SD, Kontush A. Structure-function relationships in reconstituted HDL: Focus on antioxidative activity and cholesterol efflux capacity. Biochim Biophys Acta Mol Cell Biol Lipids 2017; 1862:890-900. [PMID: 28529180 DOI: 10.1016/j.bbalip.2017.05.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Revised: 05/12/2017] [Accepted: 05/17/2017] [Indexed: 01/28/2023]
Abstract
AIMS High-density lipoprotein (HDL) contains multiple components that endow it with biological activities. Apolipoprotein A-I (apoA-I) and surface phospholipids contribute to these activities; however, structure-function relationships in HDL particles remain incompletely characterised. METHODS Reconstituted HDLs (rHDLs) were prepared from apoA-I and soy phosphatidylcholine (PC) at molar ratios of 1:50, 1:100 and 1:150. Oxidative status of apoA-I was varied using controlled oxidation of Met112 residue. HDL-mediated inactivation of PC hydroperoxides (PCOOH) derived from mildly pre-oxidized low-density lipoprotein (LDL) was evaluated by HPLC with chemiluminescent detection in HDL+LDL mixtures and re-isolated LDL. Cellular cholesterol efflux was characterised in RAW264.7 macrophages. RESULTS rHDL inactivated LDL-derived PCOOH in a dose- and time-dependent manner. The capacity of rHDL to both inactivate PCOOH and efflux cholesterol via ATP-binding cassette transporter A1 (ABCA1) increased with increasing apoA-I/PC ratio proportionally to the apoA-I content in rHDL. Controlled oxidation of apoA-I Met112 gradually decreased PCOOH-inactivating capacity of rHDL but increased ABCA1-mediated cellular cholesterol efflux. CONCLUSIONS Increasing apoA-I content in rHDL enhanced its antioxidative activity towards oxidized LDL and cholesterol efflux capacity via ABCA1, whereas oxidation of apoA-I Met112 decreased the antioxidative activity but increased the cholesterol efflux. These findings provide important considerations in the design of future HDL therapeutics. Non-standard abbreviations and acronyms: AAPH, 2,2'-azobis(-amidinopropane) dihydrochloride; ABCA1, ATP-binding cassette transporter A1; apoA-I, apolipoprotein A-I; BHT, butylated hydroxytoluene; CV, cardiovascular; EDTA, ethylenediaminetetraacetic acid; HDL-C, high-density lipoprotein cholesterol; LOOH, lipid hydroperoxides; Met(O), methionine sulfoxide; Met112, methionine 112 residue; Met86, methionine 86 residue; oxLDL, oxidized low-density lipoprotein; PBS, phosphate-buffered saline; PC, phosphatidylcholine; PL, phospholipid; PCOOH, phosphatidylcholine hydroperoxide; PLOOH, phospholipid hydroperoxide.
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Affiliation(s)
- Alexandre M O Cukier
- National Institute for Health and Medical Research (INSERM), INSERM UMR 1166 ICAN, Paris, France; University of Pierre and Marie Curie-Paris 6, Paris, France; AP-HP, Groupe Hospitalier Pitié Salpétrière, Paris, France
| | - Patrice Therond
- AP-HP, HUPS Hôpital de Bicêtre, Le Kremlin-Bicêtre, France; Lip(Sys)(2) Athérosclérose: homéostasie et trafic du cholestérol des macrophages, University Paris-Sud, University Paris-Saclay, 92296 Châtenay-Malabry. France
| | | | - Isabelle Guillas
- National Institute for Health and Medical Research (INSERM), INSERM UMR 1166 ICAN, Paris, France; University of Pierre and Marie Curie-Paris 6, Paris, France; AP-HP, Groupe Hospitalier Pitié Salpétrière, Paris, France
| | - M John Chapman
- National Institute for Health and Medical Research (INSERM), INSERM UMR 1166 ICAN, Paris, France; University of Pierre and Marie Curie-Paris 6, Paris, France; AP-HP, Groupe Hospitalier Pitié Salpétrière, Paris, France
| | | | - Anatol Kontush
- National Institute for Health and Medical Research (INSERM), INSERM UMR 1166 ICAN, Paris, France; University of Pierre and Marie Curie-Paris 6, Paris, France; AP-HP, Groupe Hospitalier Pitié Salpétrière, Paris, France.
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Lapenna D, Ciofani G, Obletter G. Iron as a catalyst of human low-density lipoprotein oxidation: Critical factors involved in its oxidant properties. J Trace Elem Med Biol 2017; 41:111-118. [PMID: 28347457 DOI: 10.1016/j.jtemb.2017.02.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 01/29/2017] [Accepted: 02/14/2017] [Indexed: 10/20/2022]
Abstract
Iron-induced human LDL oxidation, which is relevant to atherosclerosis, has not yet been properly investigated. We addressed such issue using iron(II) and (III) basically in the presence of phosphates, which are present in vivo and influence iron oxidative properties, at pH 4.5 and 7.4, representative, respectively, of the lysosomal and plasma environment. In 10mM phosphate buffered saline (PBS), iron(II) induces substantial LDL oxidation at pH 4.5 at low micromolar concentrations, while at pH 7.4 has low oxidative effects; iron(III) promotes small LDL oxidation only at pH 4.5. In 10mM sodium acetate/NaCl buffer, pH 4.5, iron-induced LDL oxidation is far higher than in PBS, highlighting the relevance of phosphates in the inhibitory modulation of iron-induced LDL oxidation. LDL oxidation is related to iron binding to the protein and lipid moiety of LDL, and requires the presence of iron(II) bound to LDL together with iron(III). Chemical modification of LDL carboxyl groups, which could bind iron especially at pH 4.5, decreases significantly iron binding to LDL and iron-induced LDL oxidation. Hydroxyl radical scavengers are ineffective on iron-induced LDL oxidation, which is inhibited by metal chelation, scavengers of alkoxyl/peroxyl radicals, or removal of LDL lipid hydroperoxides (LOOH). Overall, substantial human LDL oxidation is induced LOOH-dependently by iron(II) at pH 4.5 even in the presence of phosphates, suggesting the occurrence of iron(II)-induced LDL oxidation in vivo within lysosomes, where pH is about 4.5, iron(II) and phosphates coexist, plasma with its antioxidants is absent, and glutathione peroxidase is poorly expressed resulting in LOOH accumulation.
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Affiliation(s)
- Domenico Lapenna
- Dipartimento di Medicina e Scienze dell'Invecchiamento, and Laboratorio di Fisiopatologia dello Stress Ossidativo, Centro Scienze dell'Invecchiamento e Medicina Traslazionale (CeSI-MeT), Center of Excellence on Aging, Università degli Studi "G. d'Annunzio" Chieti-Pescara, 66100, Chieti, Italy.
| | - Giuliano Ciofani
- Dipartimento di Medicina e Scienze dell'Invecchiamento, and Laboratorio di Fisiopatologia dello Stress Ossidativo, Centro Scienze dell'Invecchiamento e Medicina Traslazionale (CeSI-MeT), Center of Excellence on Aging, Università degli Studi "G. d'Annunzio" Chieti-Pescara, 66100, Chieti, Italy
| | - Gabriele Obletter
- Dipartimento di Medicina e Scienze dell'Invecchiamento, and Laboratorio di Fisiopatologia dello Stress Ossidativo, Centro Scienze dell'Invecchiamento e Medicina Traslazionale (CeSI-MeT), Center of Excellence on Aging, Università degli Studi "G. d'Annunzio" Chieti-Pescara, 66100, Chieti, Italy
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Yamamoto Y. Coenzyme Q10 redox balance and a free radical scavenger drug. Arch Biochem Biophys. 2016;595:132-135. [PMID: 27095229 DOI: 10.1016/j.abb.2015.11.026] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Revised: 07/15/2015] [Accepted: 11/04/2015] [Indexed: 12/16/2022]
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Miyamoto S, Martinez GR, Medeiros MHG, Di Mascio P. Singlet molecular oxygen generated by biological hydroperoxides. J Photochem Photobiol B 2014; 139:24-33. [PMID: 24954800 DOI: 10.1016/j.jphotobiol.2014.03.028] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Revised: 03/19/2014] [Accepted: 03/27/2014] [Indexed: 11/19/2022]
Abstract
The chemistry behind the phenomenon of ultra-weak photon emission has been subject of considerable interest for decades. Great progress has been made on the understanding of the chemical generation of electronically excited states that are involved in these processes. Proposed mechanisms implicated the production of excited carbonyl species and singlet molecular oxygen in the mechanism of generation of chemiluminescence in biological system. In particular, attention has been focused on the potential generation of singlet molecular oxygen in the recombination reaction of peroxyl radicals by the Russell mechanism. In the last ten years, our group has demonstrated the generation of singlet molecular oxygen from reactions involving the decomposition of biologically relevant hydroperoxides, especially from lipid hydroperoxides in the presence of metal ions, peroxynitrite, HOCl and cytochrome c. In this review we will discuss details on the chemical aspects related to the mechanism of singlet molecular oxygen generation from different biological hydroperoxides.
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Affiliation(s)
- Sayuri Miyamoto
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, CP26077, CEP 05513-970 São Paulo, SP, Brazil.
| | - Glaucia R Martinez
- Departamento de Bioquímica e Biologia Molecular, Setor de Ciências Biológicas, Universidade Federal do Paraná, Curitiba-PR, Brazil
| | - Marisa H G Medeiros
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, CP26077, CEP 05513-970 São Paulo, SP, Brazil
| | - Paolo Di Mascio
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, CP26077, CEP 05513-970 São Paulo, SP, Brazil.
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Hörl G, Ledinski G, Kager G, Hallström S, Tafeit E, Koestenberger M, Jürgens G, Cvirn G. In vitro oxidation of LDL by ozone. Chem Phys Lipids 2014; 183:18-21. [PMID: 24835738 DOI: 10.1016/j.chemphyslip.2014.05.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Revised: 05/05/2014] [Accepted: 05/06/2014] [Indexed: 10/25/2022]
Abstract
Recent studies suggest that ozone is present in atherosclerotic lesions. Since these lesions are characterized by a dramatic accumulation of low-density lipoprotein (LDL), we aimed to investigate whether ozone is capable of oxidizing LDL, thereby rendering this lipoprotein atherogenic. Lipid hydroperoxide (LPO) concentrations and thiobarbituric acid reactive substances (TBARS) were measured to assess the oxidative status of the lipid part of LDL. Relative electrophoretic mobility (REM) and oxidation-specific immune epitopes were measured to assess the oxidative status of the protein part (apoB) of the LDL particle. Ozone turned out to be a potent oxidant of LDL. LPO concentrations, TBARS, REM, and oxidation-specific immune epitopes significantly increased upon ozonization. Our results suggest that ozonization of LDL may be a novel pathway which supports atherogenesis. Ozone is capable of oxidizing the lipid part of LDL, followed by immediate oxidation of the protein part of LDL, rendering the lipoprotein atherogenic.
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Affiliation(s)
- Gerd Hörl
- Institute of Physiological Chemistry, Medical University of Graz, Austria
| | - Gerhard Ledinski
- Institute of Physiological Chemistry, Medical University of Graz, Austria
| | - Gerd Kager
- Institute of Physiological Chemistry, Medical University of Graz, Austria
| | - Seth Hallström
- Institute of Physiological Chemistry, Medical University of Graz, Austria
| | - Erwin Tafeit
- Institute of Physiological Chemistry, Medical University of Graz, Austria
| | | | - Günther Jürgens
- Institute of Physiological Chemistry, Medical University of Graz, Austria
| | - Gerhard Cvirn
- Institute of Physiological Chemistry, Medical University of Graz, Austria.
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Laxmi Madhikarmi N, Rudraiah Siddalinga Murthy K. Antioxidant enzymes and oxidative stress in the erythrocytes of iron deficiency anemic patients supplemented with vitamins. Iran Biomed J 2014; 18:82-87. [PMID: 24518548 PMCID: PMC3933916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 04/06/2013] [Revised: 08/03/2013] [Accepted: 08/07/2013] [Indexed: 06/03/2023]
Abstract
BACKGROUND Iron deficiency anemia is one of the major causes of morbidity and mortality worldwide. Evidences from epidemiological and clinical studies suggest a possible correlation between antioxidant levels and the anemic disease risk. The present work is to investigate antioxidant levels and lipid peroxidation in anemic patients. METHODS A number of 30 patients (15 males and 15 females) were selected for the study. Likewise, 30 age- and gender-matched healthy volunteers (15 males and 15 females) were selected with their informed consent. Patients and healthy subjects were supplemented with vitamins C and E for 15 days. The lipid peroxidation both in plasma and erythrocyte lysates was determined by thiobarbituric acid reactive substances and lipid peroxides. The antioxidant vitamins A, C, and E and total antioxidant activity were also analyzed. The antioxidant enzyme superoxide dismutase, catalase, and glutathione peroxidase were also determined. RESULTS Based on analysis, we found that the increase in lipid peroxidation was higher in the anemic subjects before vitamin supplementation, which was statistically significant at P<0.05. The antioxidant enzymes were higher in the patients before antioxidant supplementation when compared with patients after vitamin supplementation. CONCLUSION Our data revealed higher oxidative stress before vitamin supplementation in iron deficiency anemic patients and after supplementation, lower lipid peroxidation and increased antioxidant vitamins were achieved.
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Affiliation(s)
- Nirjala Laxmi Madhikarmi
- M.B.Kedia Dental College and Teaching Hospital, Near Custom Office, Birgunj, Parsa, Narayani Zone, Nepal;
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