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Elloumi A, Mas-Normand L, Bride J, Reversat G, Bultel-Poncé V, Guy A, Oger C, Demion M, Le Guennec JY, Durand T, Vigor C, Sánchez-Illana Á, Galano JM. From MS/MS library implementation to molecular networks: Exploring oxylipin diversity with NEO-MSMS. Sci Data 2024; 11:193. [PMID: 38351090 PMCID: PMC10864323 DOI: 10.1038/s41597-024-03034-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 01/31/2024] [Indexed: 02/16/2024] Open
Abstract
Oxylipins, small polar molecules derived from the peroxidation of polyunsaturated fatty acids (PUFAs), serve as biomarkers for many diseases and play crucial roles in human physiology and inflammation. Despite their significance, many non-enzymatic oxygenated metabolites of PUFAs (NEO-PUFAs) remain poorly reported, resulting in a lack of public datasets of experimental data and limiting their dereplication in further studies. To overcome this limitation, we constructed a high-resolution tandem mass spectrometry (MS/MS) dataset comprising pure NEO-PUFAs (both commercial and self-synthesized) and in vitro free radical-induced oxidation of diverse PUFAs. By employing molecular networking techniques with this dataset and the existent ones in public repositories, we successfully mapped a wide range of NEO-PUFAs, expanding the strategies for annotating oxylipins, and NEO-PUFAs and offering a novel workflow for profiling these molecules in biological samples.
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Affiliation(s)
- Anis Elloumi
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247-CNRS, 34293, Montpellier, France
| | - Lindsay Mas-Normand
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247-CNRS, 34293, Montpellier, France
| | - Jamie Bride
- PhyMedExp, Université de Montpellier, Inserm U1046, UMR CNRS 9412, Montpellier, France
| | - Guillaume Reversat
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247-CNRS, 34293, Montpellier, France
| | - Valérie Bultel-Poncé
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247-CNRS, 34293, Montpellier, France
| | - Alexandre Guy
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247-CNRS, 34293, Montpellier, France
| | - Camille Oger
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247-CNRS, 34293, Montpellier, France
| | - Marie Demion
- PhyMedExp, Université de Montpellier, Inserm U1046, UMR CNRS 9412, Montpellier, France
| | - Jean-Yves Le Guennec
- PhyMedExp, Université de Montpellier, Inserm U1046, UMR CNRS 9412, Montpellier, France
| | - Thierry Durand
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247-CNRS, 34293, Montpellier, France
| | - Claire Vigor
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247-CNRS, 34293, Montpellier, France
| | - Ángel Sánchez-Illana
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247-CNRS, 34293, Montpellier, France.
- Department of Analytical Chemistry, University of Valencia, Dr. Moliner 50, 46100, Burjassot, Spain.
| | - Jean-Marie Galano
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247-CNRS, 34293, Montpellier, France.
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2
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Chaves-Filho AM, Braniff O, Angelova A, Deng Y, Tremblay MÈ. Chronic inflammation, neuroglial dysfunction, and plasmalogen deficiency as a new pathobiological hypothesis addressing the overlap between post-COVID-19 symptoms and myalgic encephalomyelitis/chronic fatigue syndrome. Brain Res Bull 2023; 201:110702. [PMID: 37423295 DOI: 10.1016/j.brainresbull.2023.110702] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 05/13/2023] [Accepted: 07/06/2023] [Indexed: 07/11/2023]
Abstract
After five waves of coronavirus disease 2019 (COVID-19) outbreaks, it has been recognized that a significant portion of the affected individuals developed long-term debilitating symptoms marked by chronic fatigue, cognitive difficulties ("brain fog"), post-exertional malaise, and autonomic dysfunction. The onset, progression, and clinical presentation of this condition, generically named post-COVID-19 syndrome, overlap significantly with another enigmatic condition, referred to as myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS). Several pathobiological mechanisms have been proposed for ME/CFS, including redox imbalance, systemic and central nervous system inflammation, and mitochondrial dysfunction. Chronic inflammation and glial pathological reactivity are common hallmarks of several neurodegenerative and neuropsychiatric disorders and have been consistently associated with reduced central and peripheral levels of plasmalogens, one of the major phospholipid components of cell membranes with several homeostatic functions. Of great interest, recent evidence revealed a significant reduction of plasmalogen contents, biosynthesis, and metabolism in ME/CFS and acute COVID-19, with a strong association to symptom severity and other relevant clinical outcomes. These bioactive lipids have increasingly attracted attention due to their reduced levels representing a common pathophysiological manifestation between several disorders associated with aging and chronic inflammation. However, alterations in plasmalogen levels or their lipidic metabolism have not yet been examined in individuals suffering from post-COVID-19 symptoms. Here, we proposed a pathobiological model for post-COVID-19 and ME/CFS based on their common inflammation and dysfunctional glial reactivity, and highlighted the emerging implications of plasmalogen deficiency in the underlying mechanisms. Along with the promising outcomes of plasmalogen replacement therapy (PRT) for various neurodegenerative/neuropsychiatric disorders, we sought to propose PRT as a simple, effective, and safe strategy for the potential relief of the debilitating symptoms associated with ME/CFS and post-COVID-19 syndrome.
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Affiliation(s)
| | - Olivia Braniff
- Division of Medical Sciences, University of Victoria, Victoria, British Columbia, Canada
| | - Angelina Angelova
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, F-91400 Orsay, France
| | - Yuru Deng
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, China.
| | - Marie-Ève Tremblay
- Division of Medical Sciences, University of Victoria, Victoria, British Columbia, Canada; Department of Molecular Medicine, Université Laval, Québec City, Québec, Canada; Neurology and Neurosurgery Department, McGill University, Montréal, Québec, Canada; Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, British Columbia, Canada; Centre for Advanced Materials and Related Technology (CAMTEC) and Institute on Aging and Lifelong Health (IALH), University of Victoria, Victoria, British Columbia, Canada.
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3
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Klievik BJ, Tyrrell AD, Chen CT, Bazinet RP. Measuring brain docosahexaenoic acid turnover as a marker of metabolic consumption. Pharmacol Ther 2023:108437. [PMID: 37201738 DOI: 10.1016/j.pharmthera.2023.108437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 05/02/2023] [Accepted: 05/15/2023] [Indexed: 05/20/2023]
Abstract
Docosahexaenoic acid (DHA, 22:6n-3) accretion in brain phospholipids is critical for maintaining the structural fluidity that permits proper assembly of protein complexes for signaling. Furthermore, membrane DHA can by released by phospholipase A2 and act as substrate for synthesis of bioactive metabolites that regulate synaptogenesis, neurogenesis, inflammation, and oxidative stress. Thus, brain DHA is consumed through multiple pathways including mitochondrial β-oxidation, autoxidation to neuroprostanes, as well as enzymatic synthesis of bioactive metabolites including oxylipins, synaptamide, fatty-acid amides, and epoxides. By using models developed by Rapoport and colleagues, brain DHA loss has been estimated to be 0.07-0.26 μmol DHA/g brain/d. Since β-oxidation of DHA in the brain is relatively low, a large portion of brain DHA loss may be attributed to synthesis of autoxidative and bioactive metabolites. In recent years, we have developed a novel application of compound specific isotope analysis to trace DHA metabolism. By the use of natural abundance in 13C-DHA in food supply, we are able to trace brain phospholipid DHA loss in free-living mice with estimates ranging from 0.11 to 0.38 μmol DHA/g brain/d, in reasonable agreement with previous methods. This novel fatty acid metabolic tracing methodology should improve our understanding of the factors that regulate brain DHA metabolism.
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Affiliation(s)
- Brinley J Klievik
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, 1 King's College Circle, Toronto, Ontario, Canada M5S 1A8
| | - Aidan D Tyrrell
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, 1 King's College Circle, Toronto, Ontario, Canada M5S 1A8
| | - Chuck T Chen
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, 1 King's College Circle, Toronto, Ontario, Canada M5S 1A8
| | - Richard P Bazinet
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, 1 King's College Circle, Toronto, Ontario, Canada M5S 1A8.
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Signorini C, Moretti E, Noto D, Mattioli S, Castellini C, Pascarelli NA, Durand T, Oger C, Galano JM, De Felice C, Lee JCY, Collodel G. F 4-Neuroprostanes: A Role in Sperm Capacitation. Life (Basel) 2021; 11:life11070655. [PMID: 34357027 PMCID: PMC8306804 DOI: 10.3390/life11070655] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 06/24/2021] [Accepted: 07/02/2021] [Indexed: 12/14/2022] Open
Abstract
F4-neuroprostanes (F4-NeuroPs), derived from the oxidative metabolization of docosahexaenoic acid (DHA), are considered biomarkers of oxidative stress in neurodegenerative diseases. Neurons and spermatozoa display a high DHA content. NeuroPs might possess biological activities. The aim of this in vitro study was to investigate the biological effects of chemically synthetized 4-F4t-NeuroP and 10-F4t-NeuroP in human sperm. Total progressive sperm motility (p < 0.05) and linearity (p = 0.016), evaluated by a computer-assisted sperm analyzer, were significantly increased in samples incubated with 7 ng F4-NeuroPs compared to non-supplemented controls. Sperm capacitation was tested in rabbit and swim-up-selected human sperm by chlortetracycline fluorescence assay. A higher percentage of capacitated sperm (p < 0.01) was observed in samples incubated in F4-NeuroPs than in the controls. However, the percentage of capacitated sperm was not different in F4-NeuroPs and calcium ionophore treatments at 2 h incubation. The phosphorylated form of AMPKα was detected by immunofluorescence analysis; after 2 h F4-NeuroP incubation, a dotted signal appeared in the entire sperm tail, and in controls, sperm were labeled in the mid-piece. A defined level of seminal F4-NeuroPs (7 ng) showed a biological activity in sperm function; its addition in sperm suspensions stimulated capacitation, increasing the number of sperm able to fertilize.
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Affiliation(s)
- Cinzia Signorini
- Department of Molecular and Developmental Medicine, University of Siena, Policlinico Santa Maria Alle Scotte, Viale Bracci 14, 53100 Siena, Italy; (C.S.); (D.N.); (N.A.P.); (G.C.)
| | - Elena Moretti
- Department of Molecular and Developmental Medicine, University of Siena, Policlinico Santa Maria Alle Scotte, Viale Bracci 14, 53100 Siena, Italy; (C.S.); (D.N.); (N.A.P.); (G.C.)
- Correspondence: ; Tel.: +39-577-233511
| | - Daria Noto
- Department of Molecular and Developmental Medicine, University of Siena, Policlinico Santa Maria Alle Scotte, Viale Bracci 14, 53100 Siena, Italy; (C.S.); (D.N.); (N.A.P.); (G.C.)
| | - Simona Mattioli
- Department of Agricultural, Environmental, and Food Science, University of Perugia, Borgo XX Giugno 74, 06123 Perugia, Italy; (S.M.); (C.C.)
| | - Cesare Castellini
- Department of Agricultural, Environmental, and Food Science, University of Perugia, Borgo XX Giugno 74, 06123 Perugia, Italy; (S.M.); (C.C.)
| | - Nicola Antonio Pascarelli
- Department of Molecular and Developmental Medicine, University of Siena, Policlinico Santa Maria Alle Scotte, Viale Bracci 14, 53100 Siena, Italy; (C.S.); (D.N.); (N.A.P.); (G.C.)
| | - Thierry Durand
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université de Montpellier, ENSCM, 34090 Montpellier, France; (T.D.); (C.O.); (J.-M.G.)
| | - Camille Oger
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université de Montpellier, ENSCM, 34090 Montpellier, France; (T.D.); (C.O.); (J.-M.G.)
| | - Jean-Marie Galano
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université de Montpellier, ENSCM, 34090 Montpellier, France; (T.D.); (C.O.); (J.-M.G.)
| | - Claudio De Felice
- Child Neuropsychiatry Unit, Azienda Ospedaliera Universitaria Senese, 53100 Siena, Italy;
- Neonatal Intensive Care Unit, Azienda Ospedaliera Universitaria Senese, 53100 Siena, Italy
| | | | - Giulia Collodel
- Department of Molecular and Developmental Medicine, University of Siena, Policlinico Santa Maria Alle Scotte, Viale Bracci 14, 53100 Siena, Italy; (C.S.); (D.N.); (N.A.P.); (G.C.)
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Kim DH, Lee HJ, Choi G, Kim OH, Lee KG, Yeo JH, Lee JY, Lee SH, Youn YC, Lee JH, Paik HD, Lee WB, Kim SS, Jung HY. Erratum to: Milk Containing BF-7 Enhances the Learning and Memory, Attention, and Mathematical Ability of Normal Persons. Food Sci Anim Resour 2020. [PMID: 32969413 DOI: 10.5851/kosfa.2009.29.2.278] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
[This corrects the article DOI: 10.5851/kosfa.2009.29.2.278.].
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Affiliation(s)
- Do-Hee Kim
- Department of Anatomy and Cell Biology, College of Medicine, Chung-Ang University, Seoul 06974, Korea
| | - Hyun-Jung Lee
- Department of Anatomy and Cell Biology, College of Medicine, Chung-Ang University, Seoul 06974, Korea
| | - Gooihun Choi
- Division of Animal Life Science, Konkuk University, Seoul 05029, Korea
| | - Ok-Hyeon Kim
- Department of Anatomy and Cell Biology, College of Medicine, Chung-Ang University, Seoul 06974, Korea
| | - Kwang-Gill Lee
- Applied Entomology Division, Department of Sericulture and Entomology, National Academy of Agriculture Science, Wanju 55365, Korea
| | - Joo-Hong Yeo
- Applied Entomology Division, Department of Sericulture and Entomology, National Academy of Agriculture Science, Wanju 55365, Korea
| | - Jun-Young Lee
- Department of Psychiatry, College of Medicine, Seoul National University, SMG-SNU Boramae Medical Center, Seoul 07061, Korea
| | - Sang Hyung Lee
- Department of Neurosurgery, College of Medicine, Seoul National University, SMG-SNU Boramae Medical Center, Seoul 07061, Korea
| | - Young Chul Youn
- Department of Neurology, College of Medicine, Chung-Ang University, Seoul 06974, Korea
| | - Jang Han Lee
- Department of Psychology, College of Liberal Arts, Chung-Ang University, Seoul 06974, Korea
| | - Hyun-Dong Paik
- Division of Animal Life Science, Konkuk University, Seoul 05029, Korea
| | - Won Bok Lee
- Department of Anatomy and Cell Biology, College of Medicine, Chung-Ang University, Seoul 06974, Korea
| | - Sung-Su Kim
- Department of Anatomy and Cell Biology, College of Medicine, Chung-Ang University, Seoul 06974, Korea
| | - Hee-Yeon Jung
- Department of Psychiatry, College of Medicine, Seoul National University, SMG-SNU Boramae Medical Center, Seoul 07061, Korea
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6
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Roy J, Vigor C, Vercauteren J, Reversat G, Zhou B, Surget A, Larroquet L, Lanuque A, Sandres F, Terrier F, Oger C, Galano JM, Corraze G, Durand T. Characterization and modulation of brain lipids content of rainbow trout fed with 100% plant based diet rich in omega-3 long chain polyunsaturated fatty acids DHA and EPA. Biochimie 2020; 178:137-147. [PMID: 32623048 DOI: 10.1016/j.biochi.2020.06.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 06/19/2020] [Accepted: 06/25/2020] [Indexed: 12/11/2022]
Abstract
Brain functions are known to be mainly modulated by adequate dietary intake. Inadequate intake as can be an excess or significant deficiency affect cognitive processes, behavior, neuroendocrine functions and synaptic plasticity with protective or harmful effects on neuronal physiology. Lipids, in particular, ω-6 and ω-3 long chain polyunsaturated fatty acids (LC-PUFAs) play structural roles and govern the different functions of the brain. Hence, the goal of this study was to characterize the whole brain fatty acid composition (precursors, enzymatic and non-enzymatic oxidation metabolites) of fish model of rainbow trout fed with three experimental plant-based diet containing distinct levels of eicosapentaenoic acid (EPA, 20:5 ω-3) and docosahexaenoic acid (DHA, 22:6 ω-3) (0% for low, 15.7% for medium and 33.4% for high, total fatty acid content) during nine weeks. Trout fed with the diet devoid of DHA and EPA showed reduced brain content of total ω-3 LC-PUFAs, with diminution of EPA and DHA. Selected enzymatic (cyclooxygenases and lipoxygenases) oxidation metabolites of arachidonic acid (AA, 20:4 ω-6) decrease in medium and high ω-3 LC-PUFAs diets. On the contrary, total selected enzymatic oxidation metabolites of DHA and EPA increased in high ω-3 LC-PUFAs diet. Total selected non-enzymatic oxidation metabolites of DHA (not detected for EPA) increased in medium and high ω-3 LC-PUFAs diets. In conclusion, this work revealed for the first time in fish model the presence of some selected enzymatic and non-enzymatic oxidation metabolites in brain and the modulation of brain lipid content by dietary DHA and EPA levels.
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Affiliation(s)
- Jérôme Roy
- INRAE, Univ Pau & Pays de l'Adour, E2S UPPA, UMR1419 Nutrition Metabolism and Aquaculture, Aquapôle, F-64310, Saint-Pée-sur-Nivelle, France.
| | - Claire Vigor
- Institut des Biomolécules Max Mousseron (IBMM), CNRS, Université de Montpellier, ENSCM, Montpellier, France
| | - Joseph Vercauteren
- Institut des Biomolécules Max Mousseron (IBMM), CNRS, Université de Montpellier, ENSCM, Montpellier, France
| | - Guillaume Reversat
- Institut des Biomolécules Max Mousseron (IBMM), CNRS, Université de Montpellier, ENSCM, Montpellier, France
| | - Bingqing Zhou
- Institut des Biomolécules Max Mousseron (IBMM), CNRS, Université de Montpellier, ENSCM, Montpellier, France
| | - Anne Surget
- INRAE, Univ Pau & Pays de l'Adour, E2S UPPA, UMR1419 Nutrition Metabolism and Aquaculture, Aquapôle, F-64310, Saint-Pée-sur-Nivelle, France
| | - Laurence Larroquet
- INRAE, Univ Pau & Pays de l'Adour, E2S UPPA, UMR1419 Nutrition Metabolism and Aquaculture, Aquapôle, F-64310, Saint-Pée-sur-Nivelle, France
| | - Anthony Lanuque
- INRAE, Univ Pau & Pays de l'Adour, E2S UPPA, UMR1419 Nutrition Metabolism and Aquaculture, Aquapôle, F-64310, Saint-Pée-sur-Nivelle, France
| | - Franck Sandres
- INRAE, Univ Pau & Pays de l'Adour, E2S UPPA, UMR1419 Nutrition Metabolism and Aquaculture, Aquapôle, F-64310, Saint-Pée-sur-Nivelle, France
| | - Frederic Terrier
- INRAE, Univ Pau & Pays de l'Adour, E2S UPPA, UMR1419 Nutrition Metabolism and Aquaculture, Aquapôle, F-64310, Saint-Pée-sur-Nivelle, France
| | - Camille Oger
- Institut des Biomolécules Max Mousseron (IBMM), CNRS, Université de Montpellier, ENSCM, Montpellier, France
| | - Jean-Marie Galano
- Institut des Biomolécules Max Mousseron (IBMM), CNRS, Université de Montpellier, ENSCM, Montpellier, France
| | - Geneviève Corraze
- INRAE, Univ Pau & Pays de l'Adour, E2S UPPA, UMR1419 Nutrition Metabolism and Aquaculture, Aquapôle, F-64310, Saint-Pée-sur-Nivelle, France
| | - Thierry Durand
- Institut des Biomolécules Max Mousseron (IBMM), CNRS, Université de Montpellier, ENSCM, Montpellier, France
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Bis-allylic Deuterated DHA Alleviates Oxidative Stress in Retinal Epithelial Cells. Antioxidants (Basel) 2019; 8:antiox8100447. [PMID: 31581525 PMCID: PMC6826779 DOI: 10.3390/antiox8100447] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 09/02/2019] [Accepted: 09/16/2019] [Indexed: 12/12/2022] Open
Abstract
Oxidative stress plays a crucial role in developing and accelerating retinal diseases including age-related macular degeneration (AMD). Docosahexaenoic acid (DHA, C22:6, n-3), the main lipid constituent of retinal epithelial cell membranes, is highly prone to radical and enzymatic oxidation leading to deleterious or beneficial metabolites for retinal tissue. To inhibit radical oxidation while preserving enzymatic metabolism, deuterium was incorporated at specific positions of DHA, resulting in D2-DHA when incorporated at position 6 and D4-DHA when incorporated at the 6,9 bis-allylic positions. Both derivatives were able to decrease DHAs’ toxicity and free radical processes involved in lipid peroxidation, in ARPE-19 cells (Adult Retinal Pigment Epithelial cell line), under pro-oxidant conditions. Our positive results encouraged us to prepare lipophenolic-deuterated-DHA conjugates as possible drug candidates for AMD treatment. These novel derivatives proved efficient in limiting lipid peroxidation in ARPE-19 cells. Finally, we evaluated the underlying mechanisms and the enzymatic conversion of both deuterated DHA. While radical abstraction was affected at the deuterium incorporation sites, enzymatic conversion by the lipoxygenase 15s-LOX was not impacted. Our results suggest that site-specifically deuterated DHA could be used in the development of DHA conjugates for treatment of oxidative stress driven diseases, or as biological tools to study the roles, activities and mechanisms of DHA metabolites.
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Isoprostanoids in Clinical and Experimental Neurological Disease Models. Antioxidants (Basel) 2018; 7:antiox7070088. [PMID: 29997375 PMCID: PMC6071265 DOI: 10.3390/antiox7070088] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 06/28/2018] [Accepted: 07/09/2018] [Indexed: 12/13/2022] Open
Abstract
Isoprostanoids are a large family of compounds derived from non-enzymatic oxidation of polyunsaturated fatty acids (PUFAs). Unlike other oxidative stress biomarkers, they provide unique information on the precursor of the targeted PUFA. Although they were discovered about a quarter of century ago, the knowledge on the role of key isoprostanoids in the pathogenesis of experimental and human disease models remains limited. This is mainly due to the limited availability of highly purified molecules to be used as a reference standard in the identification of biological samples. The accurate knowledge on their biological relevance is the critical step that could be translated from some mere technical/industrial advances into a reliable biological disease marker which is helpful in deciphering the oxidative stress puzzle related to neurological disorders. Recent research indicates the value of isoprostanoids in predicting the clinical presentation and evolution of the neurological diseases. This review focuses on the relevance of isoprostanoids as mediators and potential biomarkers in neurological diseases, a heterogeneous family ranging from rare brain diseases to major health conditions that could have worldwide socioeconomic impact in the health sector. The current challenge is to identify the preferential biochemical pathways that actually follow the oxidative reactions in the neurological diseases and the consequence of the specific isoprostanes in the underlying pathogenic mechanisms.
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9
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Catani MV, Gasperi V, Bisogno T, Maccarrone M. Essential Dietary Bioactive Lipids in Neuroinflammatory Diseases. Antioxid Redox Signal 2018; 29:37-60. [PMID: 28637354 PMCID: PMC5984567 DOI: 10.1089/ars.2016.6958] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Revised: 06/19/2017] [Accepted: 06/20/2017] [Indexed: 12/13/2022]
Abstract
SIGNIFICANCE Under physiological conditions, neurons and glia are in a healthy, redox-balanced environment; when injury perturbs this equilibrium, a neuroinflammatory state is established by activated microglia that triggers pro-inflammatory responses and alters the oxidant/antioxidant balance, thus leading to neuronal loss and neurodegeneration. In neurodegenerative diseases (such as Alzheimer's disease, Parkinson's disease, amyothrophic lateral sclerosis, and multiple sclerosis), the brain is in a constitutively self-sustaining cycle of inflammation and oxidative stress that prompts and amplifies brain damage. Recent Advances: Recently, an increasing amount of scientific data highlight the ability of specific nutrients to cross the blood-brain barrier, and to modulate inflammatory and oxidative pathways. Therefore, nutritional approaches may contribute to restore the lost equilibrium among factors accounting for neurodegeneration. CRITICAL ISSUES Herein, we critically examine how essential lipids (including fatty acids, liposoluble vitamins and phytosterols) might contribute to accelerate or prevent the onset and progression of such pathologies. In particular, we highlight that experimental and clinical findings, although promising, are still inadequate to draw definitive conclusions. FUTURE DIRECTIONS More research is warranted in order to establish the real impact of lipid intake on brain health, especially when redox balance and inflammatory responses have been already compromised. In the future, it would be hoped to gain a detailed knowledge of chemical modifications and dynamic properties of such nutrients, before planning to exploit them as potential therapeutics. Antioxid. Redox Signal. 29, 37-60.
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Affiliation(s)
- Maria Valeria Catani
- Department of Experimental Medicine and Surgery, Tor Vergata University of Rome, Rome, Italy
| | - Valeria Gasperi
- Department of Experimental Medicine and Surgery, Tor Vergata University of Rome, Rome, Italy
| | - Tiziana Bisogno
- Endocannabinoid Research Group, Institute of Biomolecular Chemistry, National Research Council, Pozzuoli, Italy
- Department of Medicine, Campus Bio-Medico University of Rome, Rome, Italy
| | - Mauro Maccarrone
- Department of Medicine, Campus Bio-Medico University of Rome, Rome, Italy
- European Center for Brain Research/Santa Lucia Foundation IRCCS, Rome, Italy
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10
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Development of an LC-ESI(-)-MS/MS method for the simultaneous quantification of 35 isoprostanes and isofurans derived from the major n3- and n6-PUFAs. Anal Chim Acta 2017; 1037:63-74. [PMID: 30292316 DOI: 10.1016/j.aca.2017.11.002] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 10/18/2017] [Accepted: 11/01/2017] [Indexed: 12/15/2022]
Abstract
Misregulation of oxidative and antioxidative processes in the organism - oxidative stress - contributes to the pathogenesis of different diseases, e.g. inflammatory or neurodegenerative diseases. Oxidative stress leads to autoxidation of polyunsaturated fatty acids giving rise to prostaglandin-like isoprostanes (IsoP) and isofurans (IsoF). On the one hand they could serve as biomarker of oxidative stress and on the other hand may act as lipid mediators, similarly as the enzymatically formed oxylipins. In the present paper we describe the development of an LC-ESI(-)-MS/MS method allowing the parallel quantification of 27 IsoP and 8 IsoF derived from 6 different PUFA (ALA, ARA, EPA, AdA, n6-DPA, DHA) within 12 min. The chromatographic separation was carried out on an RP-C18 column (2.1 × 150 mm, 1.8 μm) yielding narrow peaks with an average width at half maximum of 3.3-4.2 s. Detection was carried out on a triple quadrupole mass spectrometer operating in selected reaction monitoring mode allowing the selective detection of regioisomers. The limit of detection ranged between 0.1 and 1 nM allowing in combination with solid phase extraction the detection of IsoP and IsoF at subnanomolar concentrations in biological samples. The method was validated for human plasma showing high accuracy and precision. Application of the approach on the investigation of oxidative stress in cultured cells indicated a distinct pattern of IsoP and IsoF in response to reactive oxygen species which warrants further investigation. The described method is not only the most comprehensive approach for the simultaneous quantification of IsoP and IsoF, but it was also integrated in a targeted metabolomics method (Ostermann et al. (2015) Anal Bioanal Chem) allowing the quantification of in total 164 oxylipins formed enzymatically and non-enzymatically within 30.5 min.
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Mohn ES, Erdman JW, Kuchan MJ, Neuringer M, Johnson EJ. Lutein accumulates in subcellular membranes of brain regions in adult rhesus macaques: Relationship to DHA oxidation products. PLoS One 2017; 12:e0186767. [PMID: 29049383 PMCID: PMC5648219 DOI: 10.1371/journal.pone.0186767] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Accepted: 10/07/2017] [Indexed: 01/19/2023] Open
Abstract
OBJECTIVES Lutein, a carotenoid with anti-oxidant functions, preferentially accumulates in primate brain and is positively related to cognition in humans. Docosahexaenoic acid (DHA), an omega-3 polyunsaturated fatty acid (PUFA), is also beneficial for cognition, but is susceptible to oxidation. The present study characterized the membrane distribution of lutein in brain regions important for different domains of cognitive function and determined whether membrane lutein was associated with brain PUFA oxidation. METHODS Adult rhesus monkeys were fed a stock diet (~2 mg/day lutein or ~0.5 μmol/kg body weight/day) (n = 9) or the stock diet plus a daily supplement of lutein (~4.5 mg/day or~1 μmol/kg body weight/day) and zeaxanthin (~0.5 mg/day or 0.1 μmol/kg body weight/day) for 6-12 months (n = 4). Nuclear, myelin, mitochondrial, and neuronal plasma membranes were isolated using a Ficoll density gradient from prefrontal cortex (PFC), cerebellum (CER), striatum (ST), and hippocampus (HC). Carotenoids, PUFAs, and PUFA oxidation products were measured using HPLC, GC, and LC-GC/MS, respectively. RESULTS All-trans-lutein (ng/mg protein) was detected in all regions and membranes and was highly variable among monkeys. Lutein/zeaxanthin supplementation significantly increased total concentrations of lutein in serum, PFC and CER, as well as lutein in mitochondrial membranes and total DHA concentrations in PFC only (P<0.05). In PFC and ST, mitochondrial lutein was inversely related to DHA oxidation products, but not those from arachidonic acid (P <0.05). DISCUSSION This study provides novel data on subcellular lutein accumulation and its relationship to DHA oxidation in primate brain. These findings support the hypothesis that lutein may be associated with antioxidant functions in the brain.
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Affiliation(s)
- Emily S. Mohn
- Jean Mayer US Department of Agriculture Human Nutrition Research Center on Aging, Tufts University, Boston, Massachusetts, United States of America
| | - John W. Erdman
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Urbana, Illinois, United States of America
| | - Matthew J. Kuchan
- Discovery Research, Abbott Nutrition, Columbus, Ohio, United States of America
| | - Martha Neuringer
- Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, Oregon, United States of America
| | - Elizabeth J. Johnson
- Jean Mayer US Department of Agriculture Human Nutrition Research Center on Aging, Tufts University, Boston, Massachusetts, United States of America
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Bazan HA, Lu Y, Jun B, Fang Z, Woods TC, Hong S. Circulating inflammation-resolving lipid mediators RvD1 and DHA are decreased in patients with acutely symptomatic carotid disease. Prostaglandins Leukot Essent Fatty Acids 2017; 125:43-47. [PMID: 28987721 PMCID: PMC5909403 DOI: 10.1016/j.plefa.2017.08.007] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2017] [Revised: 07/18/2017] [Accepted: 08/21/2017] [Indexed: 12/26/2022]
Abstract
BACKGROUND Efficient biomarkers for early prediction and diagnosis of an acutely symptomatic carotid plaque rupture event are currently lacking, impairing the ability to diagnose and treat patients with an acute plaque rupture events in a timely fashion. Resolvins are endogenous inflammation-resolving lipid mediators that are induced by inflammatory insults. We hypothesized that resolvin and other lipid profiles in sera likely mark the process towards plaque rupture. METHODS Circulating lipids associated with plaque rupture events were quantitatively profiled via targeted mediator-lipidomics using ultraperformance liquid chromatography tandem mass spectrometry in patients with acutely symptomatic and asymptomatic carotid disease. RESULTS Resolvin D1 (RvD1, 82 ± 11pM vs. 152 ± 17pM, p = 0.001) and docosahexaenoic acid (DHA) (0.052 ± 0.007µM versus 0.076 ± 0.008µM, p = 0.025) levels are decreased in the sera of patients presenting with an acutely symptomatic carotid plaque rupture event (n = 21) compared to patients with asymptomatic (n = 24) high-grade carotid stenosis. Circulating arachidonic acid (AA) levels, however, were higher (0.429 ± 0.046µM versus 0.257 ± 0.035µM, p < 0.01) in acutely symptomatic compared to asymptomatic carotid patients. ROC curve analysis demonstrates that the serum ratio AA:RvD1 (AUC 0.84, sensitivity 0.71, specificity 0.92) and AA:DHA (AUC 0.86, sensitivity 0.90, specificity 0.71) are biomarkers for the risk of atherosclerotic plaque rupture. CONCLUSIONS A circulating pro-inflammatory lipid profile, characterized by high AA:RvD1 and AA:DHA, is associated with acutely symptomatic carotid disease and stroke.
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Affiliation(s)
- Hernan A. Bazan
- Department of Surgery, Section of Vascular/Endovascular Surgery, Ochsner Clinic and The University of Queensland School of Medicine, Ochsner Clinical School, 1514 Jefferson Highway, New Orleans, LA 70121
- Correspondence: Dr. Hernan Bazan, Ochsner Clinic, 1514 Jefferson Highway, New Orleans, LA 70121 | | 504 842 4053 (office); 504 842 5017 (fax)
| | - Yan Lu
- Neuroscience Center of Excellence, Louisiana State University Health Sciences Center, New Orleans, LA 70112
| | - Bokkyoo Jun
- Neuroscience Center of Excellence, Louisiana State University Health Sciences Center, New Orleans, LA 70112
| | - Zhide Fang
- Biostatistics Program, School of Public Health, Louisiana State University Health Sciences Center, New Orleans, LA 70112
| | - T. Cooper Woods
- Department of Physiology and the Heart & Vascular Institute, Tulane School of Medicine, New Orleans, LA 70112
| | - Song Hong
- Neuroscience Center of Excellence, Louisiana State University Health Sciences Center, New Orleans, LA 70112
- Department of Ophthalmology, Louisiana State University Health Sciences Center, New Orleans, LA 70112
- Correspondence: Dr. Hernan Bazan, Ochsner Clinic, 1514 Jefferson Highway, New Orleans, LA 70121 | | 504 842 4053 (office); 504 842 5017 (fax)
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Demion M, Oger C, Vigor C, Thireau J, Guennec JYL, Durand T, Galano JM, Lee JCY. Two sides of the same coin: NEO-PUFAs in Rett syndrome and post-infarction cardiac arrhythmias. EUR J LIPID SCI TECH 2017. [DOI: 10.1002/ejlt.201600320] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Marie Demion
- Inserm U1046-UMR CNRS 9214 Physiologie et Médecine Expérimentale du cœur et des muscles−PHYMEDEX; Université de Montpellier; Montpellier France
| | - Camille Oger
- Institut des Biomolécules Max Mousseron, (IBMM) UMR 5247; CNRS Université de Montpellier, ENSCM; Montpellier France
| | - Claire Vigor
- Institut des Biomolécules Max Mousseron, (IBMM) UMR 5247; CNRS Université de Montpellier, ENSCM; Montpellier France
| | - Jérôme Thireau
- Inserm U1046-UMR CNRS 9214 Physiologie et Médecine Expérimentale du cœur et des muscles−PHYMEDEX; Université de Montpellier; Montpellier France
| | - Jean-Yves Le Guennec
- Inserm U1046-UMR CNRS 9214 Physiologie et Médecine Expérimentale du cœur et des muscles−PHYMEDEX; Université de Montpellier; Montpellier France
| | - Thierry Durand
- Institut des Biomolécules Max Mousseron, (IBMM) UMR 5247; CNRS Université de Montpellier, ENSCM; Montpellier France
| | - Jean-Marie Galano
- Institut des Biomolécules Max Mousseron, (IBMM) UMR 5247; CNRS Université de Montpellier, ENSCM; Montpellier France
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García-Flores LA, Medina S, Cejuela R, Martínez-Sanz JM, Oger C, Galano JM, Durand T, Casas-Pina T, Martínez-Hernández P, Ferreres F, Gil-Izquierdo Á. Assessment of oxidative stress biomarkers – neuroprostanes and dihomo-isoprostanes – in the urine of elite triathletes after two weeks of moderate-altitude training. Free Radic Res 2016; 50:485-94. [DOI: 10.3109/10715762.2015.1111514] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Signorini C, De Felice C, Leoncini S, Møller RS, Zollo G, Buoni S, Cortelazzo A, Guerranti R, Durand T, Ciccoli L, D’Esposito M, Ravn K, Hayek J. MECP2 Duplication Syndrome: Evidence of Enhanced Oxidative Stress. A Comparison with Rett Syndrome. PLoS One 2016; 11:e0150101. [PMID: 26930212 PMCID: PMC4773238 DOI: 10.1371/journal.pone.0150101] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Accepted: 02/09/2016] [Indexed: 11/30/2022] Open
Abstract
Rett syndrome (RTT) and MECP2 duplication syndrome (MDS) are neurodevelopmental disorders caused by alterations in the methyl-CpG binding protein 2 (MECP2) gene expression. A relationship between MECP2 loss-of-function mutations and oxidative stress has been previously documented in RTT patients and murine models. To date, no data on oxidative stress have been reported for the MECP2 gain-of-function mutations in patients with MDS. In the present work, the pro-oxidant status and oxidative fatty acid damage in MDS was investigated (subjects n = 6) and compared to RTT (subjects n = 24) and healthy condition (subjects n = 12). Patients with MECP2 gain-of-function mutations showed increased oxidative stress marker levels (plasma non-protein bound iron, intraerythrocyte non-protein bound iron, F2-isoprostanes, and F4-neuroprostanes), as compared to healthy controls (P ≤ 0.05). Such increases were similar to those observed in RTT patients except for higher plasma F2-isoprostanes levels (P < 0.0196). Moreover, plasma levels of F2-isoprostanes were significantly correlated (P = 0.0098) with the size of the amplified region. The present work shows unique data in patients affected by MDS. For the first time MECP2 gain-of-function mutations are indicated to be linked to an oxidative damage and related clinical symptoms overlapping with those of MECP2 loss-of-function mutations. A finely tuned balance of MECP2 expression appears to be critical to oxidative stress homeostasis, thus shedding light on the relevance of the redox balance in the central nervous system integrity.
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Affiliation(s)
- Cinzia Signorini
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
- * E-mail: (CS); (CDF)
| | - Claudio De Felice
- Neonatal Intensive Care Unit, Azienda Ospedaliera Universitaria Senese, Siena, Italy
- * E-mail: (CS); (CDF)
| | - Silvia Leoncini
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
- Child Neuropsychiatry Unit, Azienda Ospedaliera Universitaria Senese, Siena, Italy
| | - Rikke S. Møller
- Danish Epilepsy Centre, Dianalund, Denmark
- Institute for Regional Health Services, University of Southern Denmark, Odense, Denmark
| | - Gloria Zollo
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
- Child Neuropsychiatry Unit, Azienda Ospedaliera Universitaria Senese, Siena, Italy
| | - Sabrina Buoni
- Child Neuropsychiatry Unit, Azienda Ospedaliera Universitaria Senese, Siena, Italy
| | - Alessio Cortelazzo
- Child Neuropsychiatry Unit, Azienda Ospedaliera Universitaria Senese, Siena, Italy
| | - Roberto Guerranti
- Department of Medical Biotechnologies,University of Siena, Siena, Italy
| | - Thierry Durand
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247-CNRS-UM-ENSCM, Montpellier, France
| | - Lucia Ciccoli
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - Maurizio D’Esposito
- Institute of Genetics and Biophysics “A. Buzzati-Traverso”, Naples, Italy
- IRCSS Neuromed, Pozzilli, Italy
| | - Kirstine Ravn
- Department of Clinical Genetics, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Joussef Hayek
- Child Neuropsychiatry Unit, Azienda Ospedaliera Universitaria Senese, Siena, Italy
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Grimm MO, Haupenthal VJ, Mett J, Stahlmann CP, Blümel T, Mylonas NT, Endres K, Grimm HS, Hartmann T. Oxidized Docosahexaenoic Acid Species and Lipid Peroxidation Products Increase Amyloidogenic Amyloid Precursor Protein Processing. NEURODEGENER DIS 2015; 16:44-54. [DOI: 10.1159/000440839] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Accepted: 09/03/2015] [Indexed: 11/19/2022] Open
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Biomarkers of lipid peroxidation in Alzheimer disease (AD): an update. Arch Toxicol 2015; 89:1035-44. [PMID: 25895140 DOI: 10.1007/s00204-015-1517-6] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Accepted: 04/01/2015] [Indexed: 10/23/2022]
Abstract
Increasing evidence suggests that free radical-mediated oxidation of biological substrates is a key feature of Alzheimer's disease (AD) pathogenesis. While it has long been established that biomarkers of lipid peroxidation (LPO) are elevated in AD brain as well as ventricular CSF postmortem, more recent studies have demonstrated increased LPO biomarkers in postmortem brain from subjects with mild cognitive impairment, the earliest clinically detectable phase of dementia and preclinical AD, the earliest detectable pathological phase. Furthermore, multiple LPO biomarkers are elevated in readily accessible biological fluids throughout disease progression. Collectively, these studies demonstrate that LPO is an early feature during disease progression and may be considered a key pathway for targeted therapeutics as well as an enhancer of diagnostic accuracy for early detection of subjects during the prodromal phase.
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Yen HC, Wei HJ, Lin CL. Unresolved issues in the analysis of F2-isoprostanes, F4-neuroprostanes, isofurans, neurofurans, and F2-dihomo-isoprostanes in body fluids and tissue using gas chromatography/negative-ion chemical-ionization mass spectrometry. Free Radic Res 2015; 49:861-80. [DOI: 10.3109/10715762.2015.1014812] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Galano JM, Lee YY, Durand T, Lee JCY. Special Issue on "Analytical Methods for Oxidized Biomolecules and Antioxidants" The use of isoprostanoids as biomarkers of oxidative damage, and their role in human dietary intervention studies. Free Radic Res 2015; 49:583-98. [PMID: 25734631 DOI: 10.3109/10715762.2015.1007969] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Isoprostanoids are a group of non-enzymatic oxidized lipids from polyunsaturated fatty acids. They are commonly used as biomarkers for oxidative damage, to assess in vivo lipid peroxidation in diseases related to the vascular system and neurodegeneration. Currently, there is a mismatch with the outcome in the use of these biomarkers in intervention studies, particularly when testing the effect of antioxidants such as vitamins C and E, or zinc, or a cocktail of these, with other food components. Much of this is because the biomarkers, the method of measurement, and the duration of supplementation are unsuitable. In this review, we will highlight the formation of isoprostanoids from their respective fatty acids, and their application as biomarkers for oxidative damage in vivo, considering human dietary intervention studies evaluating plasma and urine, using mass spectrometry techniques.
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Affiliation(s)
- J-M Galano
- Institut des Biomolécules Max Mousseron, UMR 5247 CNRS, ENSCM, Universités of Montpellier , France
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Leung KS, Galano JM, Durand T, Lee JCY. Current development in non-enzymatic lipid peroxidation products, isoprostanoids and isofuranoids, in novel biological samples. Free Radic Res 2014; 49:816-26. [PMID: 25184341 DOI: 10.3109/10715762.2014.960867] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Isoprostanoids and isofuranoids are lipid mediators that can be formed from omega-3 and omega-6 polyunsaturated fatty acids (PUFAs). F2-isoprostanes formed from arachidonic acid, especially 15-F2t-isoprostane, are commonly measured in biological tissues for decades as the biomarker for oxidative stress and diseases. Recently, other forms of isoprostanoids derived from adrenic, eicosapentaenoic, and docosahexaenoic acids namely F2-dihomo-isoprostanes, F3-isoprostanes, and F4-neuroprostanes respectively, and isofuranoids including isofurans, dihomo-isofurans, and neurofurans are reported as oxidative damage markers for different metabolisms. The most widely used samples in measuring lipid peroxidation products include but not limited to the blood and urine; other biological fluids, specialized tissues, and cells can also be determined. In this review, measurement of isoprostanoids and isofuranoids in novel biological samples by gas chromatography (GC)-mass spectrometry (MS), GC-MS/MS, liquid chromatography (LC)-MS, and LC-MS/MS will be discussed.
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Affiliation(s)
- K S Leung
- School of Biological Sciences, The University of Hong Kong , Hong Kong
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Miller E, Morel A, Saso L, Saluk J. Isoprostanes and neuroprostanes as biomarkers of oxidative stress in neurodegenerative diseases. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2014; 2014:572491. [PMID: 24868314 PMCID: PMC4020162 DOI: 10.1155/2014/572491] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Revised: 03/28/2014] [Accepted: 03/31/2014] [Indexed: 01/05/2023]
Abstract
Accumulating data shows that oxidative stress plays a crucial role in neurodegenerative disorders. The literature data indicate that in vivo or postmortem cerebrospinal fluid and brain tissue levels of F2-isoprostanes (F2-IsoPs) especially F4-neuroprotanes (F4-NPs) are significantly increased in some neurodegenerative diseases: multiple sclerosis, Alzheimer's disease, Huntington's disease, and Creutzfeldt-Jakob disease. Central nervous system is the most metabolically active organ of the body characterized by high requirement for oxygen and relatively low antioxidative activity, what makes neurons and glia highly susceptible to destruction by reactive oxygen/nitrogen species and neurodegeneration. The discovery of F2-IsoPs and F4-NPs as markers of lipid peroxidation caused by the free radicals has opened up new areas of investigation regarding the role of oxidative stress in the pathogenesis of human neurodegenerative diseases. This review focuses on the relationship between F2-IsoPs and F4-NPs as biomarkers of oxidative stress and neurodegenerative diseases. We summarize the knowledge of these novel biomarkers of oxidative stress and the advantages of monitoring their formation to better define the involvement of oxidative stress in neurological diseases.
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Affiliation(s)
- Elżbieta Miller
- Department of Physical Medicine, Medical University of Lodz, Hallera 1, Lodz, Poland
- Neurorehabilitation Ward, III General Hospital in Lodz, Milionowa 14, Lodz, Poland
| | - Agnieszka Morel
- Department of General Biochemistry, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland
| | - Luciano Saso
- Department of Physiology and Pharmacology “Vittorio Erspamer”, Sapienza University of Rome, Rome, Italy
| | - Joanna Saluk
- Department of General Biochemistry, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland
- Department of Toxicology, Faculty of Pharmacy with Division of Medical Analytics, Wroclaw Medical University, Borowska 211, 50-556 Wroclaw, Poland
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Vigor C, Bertrand-Michel J, Pinot E, Oger C, Vercauteren J, Le Faouder P, Galano JM, Lee JCY, Durand T. Non-enzymatic lipid oxidation products in biological systems: assessment of the metabolites from polyunsaturated fatty acids. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 964:65-78. [PMID: 24856297 DOI: 10.1016/j.jchromb.2014.04.042] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Revised: 04/16/2014] [Accepted: 04/18/2014] [Indexed: 01/12/2023]
Abstract
Metabolites of non-enzymatic lipid peroxidation of polyunsaturated fatty acids notably omega-3 and omega-6 fatty acids have become important biomarkers of lipid products. Especially the arachidonic acid-derived F2-isoprostanes are the classic in vivo biomarker for oxidative stress in biological systems. In recent years other isoprostanes from eicosapentaenoic, docosahexaenoic, adrenic and α-linolenic acids have been evaluated, namely F3-isoprostanes, F4-neuroprostanes, F2-dihomo-isoprostanes and F1-phytoprostanes, respectively. These have been gaining interest as complementary specific biomarkers in human diseases. Refined extraction methods, robust analysis and elucidation of chemical structures have improved the sensitivity of detection in biological tissues and fluids. Previously the main reliable instrumentation for measurement was gas chromatography-mass spectrometry (GC-MS), but now the use of liquid chromatography-tandem mass spectrometry (LC-MS/MS) and immunological techniques is gaining much attention. In this review, the types of prostanoids generated from non-enzymatic lipid peroxidation of some important omega-3 and omega-6 fatty acids and biological samples that have been determined by GC-MS and LC-MS/MS are discussed.
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Affiliation(s)
- Claire Vigor
- Institut des Biomolécules Max Mousseron IBMM, UMR 5247 CNRS/Université Montpellier 1/Université Montpellier 2, France
| | - Justine Bertrand-Michel
- Plateau de lipidomique, Bio-Medical Federative Research Institute of Toulouse, INSERM, Plateforme MetaToul, Toulouse, France
| | - Edith Pinot
- Institut des Biomolécules Max Mousseron IBMM, UMR 5247 CNRS/Université Montpellier 1/Université Montpellier 2, France
| | - Camille Oger
- Institut des Biomolécules Max Mousseron IBMM, UMR 5247 CNRS/Université Montpellier 1/Université Montpellier 2, France
| | - Joseph Vercauteren
- Institut des Biomolécules Max Mousseron IBMM, UMR 5247 CNRS/Université Montpellier 1/Université Montpellier 2, France
| | - Pauline Le Faouder
- Plateau de lipidomique, Bio-Medical Federative Research Institute of Toulouse, INSERM, Plateforme MetaToul, Toulouse, France
| | - Jean-Marie Galano
- Institut des Biomolécules Max Mousseron IBMM, UMR 5247 CNRS/Université Montpellier 1/Université Montpellier 2, France
| | - Jetty Chung-Yung Lee
- The University of Hong Kong, School of Biological Sciences, Hong Kong SAR, China.
| | - Thierry Durand
- Institut des Biomolécules Max Mousseron IBMM, UMR 5247 CNRS/Université Montpellier 1/Université Montpellier 2, France.
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Gladine C, Newman JW, Durand T, Pedersen TL, Galano JM, Demougeot C, Berdeaux O, Pujos-Guillot E, Mazur A, Comte B. Lipid profiling following intake of the omega 3 fatty acid DHA identifies the peroxidized metabolites F4-neuroprostanes as the best predictors of atherosclerosis prevention. PLoS One 2014; 9:e89393. [PMID: 24558496 PMCID: PMC3928438 DOI: 10.1371/journal.pone.0089393] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Accepted: 01/20/2014] [Indexed: 12/13/2022] Open
Abstract
The anti-atherogenic effects of omega 3 fatty acids, namely eicosapentaenoic (EPA) and docosahexaenoic acids (DHA) are well recognized but the impact of dietary intake on bioactive lipid mediator profiles remains unclear. Such a profiling effort may offer novel targets for future studies into the mechanism of action of omega 3 fatty acids. The present study aimed to determine the impact of DHA supplementation on the profiles of polyunsaturated fatty acids (PUFA) oxygenated metabolites and to investigate their contribution to atherosclerosis prevention. A special emphasis was given to the non-enzymatic metabolites knowing the high susceptibility of DHA to free radical-mediated peroxidation and the increased oxidative stress associated with plaque formation. Atherosclerosis prone mice (LDLR−/−) received increasing doses of DHA (0, 0.1, 1 or 2% of energy) during 20 weeks leading to a dose-dependent reduction of atherosclerosis (R2 = 0.97, p = 0.02), triglyceridemia (R2 = 0.97, p = 0.01) and cholesterolemia (R2 = 0.96, p<0.01). Targeted lipidomic analyses revealed that both the profiles of EPA and DHA and their corresponding oxygenated metabolites were substantially modulated in plasma and liver. Notably, the hepatic level of F4-neuroprostanes, a specific class of DHA peroxidized metabolites, was strongly correlated with the hepatic DHA level. Moreover, unbiased statistical analysis including correlation analyses, hierarchical cluster and projection to latent structure discriminate analysis revealed that the hepatic level of F4-neuroprostanes was the variable most negatively correlated with the plaque extent (p<0.001) and along with plasma EPA-derived diols was an important mathematical positive predictor of atherosclerosis prevention. Thus, oxygenated n-3 PUFAs, and F4-neuroprostanes in particular, are potential biomarkers of DHA-associated atherosclerosis prevention. While these may contribute to the anti-atherogenic effects of DHA, further in vitro investigations are needed to confirm such a contention and to decipher the molecular mechanisms of action.
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Affiliation(s)
- Cécile Gladine
- UMR1019 Unité de Nutrition Humaine (UNH), INRA, CRNH Auvergne, Clermont Université, Université d’Auvergne, Clermont-Ferrand, France
| | - John W. Newman
- Obesity and Metabolism Research Unit, USDA, ARS, Western Human Nutrition Research Center, Davis, California, United States of America
- Department of Nutrition, University of California, Davis, California, United States of America
| | - Thierry Durand
- Institut des Biomolécules Max Mousseron (IBMM), UMR CNRS 5247, Universités de Montpellier I et II, France, Montpellier, France
| | - Theresa L. Pedersen
- Obesity and Metabolism Research Unit, USDA, ARS, Western Human Nutrition Research Center, Davis, California, United States of America
| | - Jean-Marie Galano
- Institut des Biomolécules Max Mousseron (IBMM), UMR CNRS 5247, Universités de Montpellier I et II, France, Montpellier, France
| | - Céline Demougeot
- EA 4267 Fonctions et Dysfonctions epithéliales, University of Franche-Comté, Besançon, France
| | - Olivier Berdeaux
- UMR6265 Centre des Sciences du Goût et de l’Alimentation, CNRS, Dijon, France
- UMR1324 Centre des Sciences du Goût et de l’Alimentation, INRA, Dijon, France
- UMR Centre des Sciences du Goût et de l’Alimentation, Université de Bourgogne, Dijon, France
| | - Estelle Pujos-Guillot
- UMR1019 Unité de Nutrition Humaine (UNH), INRA, CRNH Auvergne, Clermont Université, Université d’Auvergne, Clermont-Ferrand, France
- UMR 1019, Plateforme d’Exploration du Métabolisme, INRA, Clermont-Ferrand, France
| | - Andrzej Mazur
- UMR1019 Unité de Nutrition Humaine (UNH), INRA, CRNH Auvergne, Clermont Université, Université d’Auvergne, Clermont-Ferrand, France
| | - Blandine Comte
- UMR1019 Unité de Nutrition Humaine (UNH), INRA, CRNH Auvergne, Clermont Université, Université d’Auvergne, Clermont-Ferrand, France
- * E-mail:
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Abstract
Traumatic brain injury (TBI) is a common cause of neurological morbidity globally, and neurologic sequelae may occur even in the setting of mild injury. At present, the tools that guide diagnostic and prognostic evaluation of patients who suffer from TBI remain limited, especially for prehospital evaluation. Biomarkers of brain injury hold promise in facilitating early management and triage decisions in the civilian and military settings. The identification of biomarkers of brain injury may also be helpful in guiding end-of-life decision making and may facilitate the design of neuroprotective trials.
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Affiliation(s)
- Richa Sharma
- School of Medicine, Duke University Medical Center, Box 2900, Durham, NC 27710, USA
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Seet RC, Quek AM, Lim EC, Halliwell B. Biomarkers of oxidative damage are elevated among individuals with high cardiovascular risk: Refining subject selection strategies for antioxidant trials. Free Radic Res 2013; 47:283-90. [DOI: 10.3109/10715762.2013.769215] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Korade Z, Xu L, Mirnics K, Porter NA. Lipid biomarkers of oxidative stress in a genetic mouse model of Smith-Lemli-Opitz syndrome. J Inherit Metab Dis 2013; 36:113-22. [PMID: 22718275 PMCID: PMC3674764 DOI: 10.1007/s10545-012-9504-z] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2012] [Revised: 05/09/2012] [Accepted: 05/20/2012] [Indexed: 02/01/2023]
Abstract
7-Dehydrocholesterol (7-DHC) accumulates in tissues and fluids of patients with Smith-Lemli-Opitz syndrome (SLOS), which is caused by mutations in the gene encoding 3β-hydroxysterol-Δ(7)-reductase (DHCR7). We recently reported that 7-DHC is the most reactive lipid molecule toward free radical oxidation (lipid peroxidation) and 14 oxysterols have been identified as products of oxidation of 7-DHC in solution. As the high oxidizability of 7-DHC may lead to systemic oxidative stress in SLOS patients, we report here lipid biomarkers of oxidative stress in a Dhcr7-KO mouse model of SLOS, including oxysterols, isoprostanes (IsoPs), and neuroprostanes (NeuroPs) that are formed from the oxidation of 7-DHC, arachidonic acid and docosahexaenoic acid, respectively. In addition to a previously described oxysterol, 3β,5α-dihydroxycholest-7-en-6-one (DHCEO), we provide evidence for the chemical structures of three new oxysterols in the brain and/or liver tissue of Dhcr7-KO mice, two of which were quantified. We find that levels of IsoPs and NeuroPs are also elevated in brain and/or liver tissues of Dhcr7-KO mice relative to matching WT mice. While IsoPs and NeuroPs have been established as a reliable measurement of lipid peroxidation and oxidative stress in vivo, we show that in this genetic SLOS mouse model, 7-DHC-derived oxysterols are present at much higher levels than IsoPs and NeuroPs and thus are better markers of lipid oxidation and related oxidative stress.
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Affiliation(s)
- Zeljka Korade
- Department of Psychiatry and Vanderbilt Kennedy Center for Research on Human Development, Vanderbilt University, Nashville, TN 37235, USA
| | - Libin Xu
- Department of Chemistry and Vanderbilt Institute of Chemical Biology, Nashville, TN 37235, USA
| | - Karoly Mirnics
- Department of Psychiatry and Vanderbilt Kennedy Center for Research on Human Development, Vanderbilt University, Nashville, TN 37235, USA
| | - Ned A. Porter
- Department of Chemistry and Vanderbilt Institute of Chemical Biology, Nashville, TN 37235, USA. Department of Chemistry, 7962 Stevenson Center, Vanderbilt University, Nashville, TN 37235, USA
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28
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De Felice C, Signorini C, Leoncini S, Pecorelli A, Durand T, Valacchi G, Ciccoli L, Hayek J. The role of oxidative stress in Rett syndrome: an overview. Ann N Y Acad Sci 2012; 1259:121-35. [PMID: 22758644 DOI: 10.1111/j.1749-6632.2012.06611.x] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The main cause of Rett syndrome (RTT), a pervasive development disorder almost exclusively affecting females, is a mutation in the methyl-CpG binding protein 2 (MeCP2) gene. To date, no cure for RTT exists, although disease reversibility has been demonstrated in animal models. Emerging evidence from our and other laboratories indicates a potential role of oxidative stress (OS) in RTT. This review examines the current state of the knowledge on the role of OS in explaining the natural history, genotype-phenotype correlation, and clinical heterogeneity of the human disease. Biochemical evidence of OS appears to be related to neurological symptom severity, mutation type, and clinical presentation. These findings pave the way for potential new genetic downstream therapeutic strategies aimed at improving patient quality of life. Further efforts in the near future are needed for investigating the yet unexplored "black box" between the MeCP2 gene mutation and subsequent OS derangement.
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Affiliation(s)
- Claudio De Felice
- Neonatal Intensive Care Unit University Hospital, Azienda Ospedaliera Universitaria Senese of Siena, Siena, Italy.
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Oger C, Bultel-Poncé V, Guy A, Durand T, Galano JM. Total Synthesis of Isoprostanes Derived from Adrenic Acid and EPA. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200070] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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30
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Ligor M, Olszowy P, Buszewski B. Application of medical and analytical methods in Lyme borreliosis monitoring. Anal Bioanal Chem 2012; 402:2233-48. [PMID: 22015476 PMCID: PMC3281207 DOI: 10.1007/s00216-011-5451-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2011] [Revised: 09/17/2011] [Accepted: 09/26/2011] [Indexed: 11/08/2022]
Abstract
Lyme borreliosis (LB) is one of the most common tick-borne diseases in the northern hemisphere. It is a chronic inflammatory disease caused by the spirochaete Borrelia burgdorferi. In its early stages, pathological skin lesions, namely erythema chronicum migrans, appear. The lesions, usually localised at the site of the bite, may become visible from a few weeks up to 3 months after the infection. Predominant clinical symptoms of the disease also involve joint malfunctions and neurological or cardiac disorders. Lyme disease, in all its stages, may be successfully treated with antibiotics. The best results, however, are obtained in its early stages. In order to diagnose the disease, numerous medical or laboratory techniques have been developed. They are applied to confirm the presence of intact spirochaetes or spirochaete components such as DNA or proteins in tick vectors, reservoir hosts or patients. The methods used for the determination of LB biomarkers have also been reviewed. These biomarkers are formed during the lipid peroxidation process. The formation of peroxidation products generated by human organisms is directly associated with oxidative stress. Apart from aldehydes (malondialdehyde and 4-hydroxy-2-nonenal), many other unsaturated components such as isoprostenes and neuroprostane are obtained. The fast determination of these compounds in encephalic fluid, urine or plasma, especially in early stages of the disease, enables its treatment. Various analytical techniques which allow the determination of the aforementioned biomarkers have been reported. These include spectrophotometry as well as liquid and gas chromatography. The analytical procedure also requires the application of a derivatization step by the use of selected reagents.
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Affiliation(s)
- Magdalena Ligor
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University, Gagarina 7 St., 87-100 Toruń, Poland
| | - Paweł Olszowy
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University, Gagarina 7 St., 87-100 Toruń, Poland
| | - Bogusław Buszewski
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University, Gagarina 7 St., 87-100 Toruń, Poland
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31
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Affiliation(s)
- Ginger L Milne
- Division of Clinical Pharmacology, Vanderbilt University, Nashville, Tennessee 37232-6602, USA.
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32
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Seet RCS, Lee CYJ, Lim ECH, Quek AML, Huang H, Huang SH, Looi WF, Long LH, Halliwell B. Oral zinc supplementation does not improve oxidative stress or vascular function in patients with type 2 diabetes with normal zinc levels. Atherosclerosis 2011; 219:231-9. [PMID: 21840002 DOI: 10.1016/j.atherosclerosis.2011.07.097] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2011] [Revised: 07/11/2011] [Accepted: 07/12/2011] [Indexed: 02/07/2023]
Abstract
OBJECTIVE There is considerable controversy about what constitutes optimal zinc intakes in patients with type 2 diabetes mellitus. Several studies suggest that higher zinc intakes improve vascular function and decrease oxidative damage. We aimed to assess the effects of zinc supplementation using a range of reliable biomarkers of oxidative damage and vascular function in patients with type 2 diabetes. METHODS Forty male type 2 diabetic patients were supplemented either with 240 mg/day of zinc as zinc gluconate (n=20) or with placebo (n=20) for 3 months. Blood and spot urine samples were taken at baseline, days 3 and 7, months 1, 2 and 3 during supplementation and 1 month after cessation. Serum zinc, reliable biomarkers of oxidative damage (F(2)-isoprostanes, neuroprostanes, cholesterol oxidation products, allantoin) as well as hydroxyeicosatetraenoic acid products and vascular-related indices (augmentation index, pulse wave velocity and aortic pressure) were measured. RESULTS Despite significantly higher levels of serum zinc in the treatment group, markers of oxidative damage, levels of hydroxyeicosatetraenoic acid products and vascular indices were unchanged by zinc supplementation during the four-month study period. CONCLUSION Improving the zinc status in patients with type 2 diabetes with normal zinc levels did not have any impact on oxidative damage and vascular function, and such supplementation may not be generally beneficial in these individuals.
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Affiliation(s)
- Raymond C S Seet
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
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33
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Seet RCS, Lee CYJ, Loke WM, Huang SH, Huang H, Looi WF, Chew ES, Quek AML, Lim ECH, Halliwell B. Biomarkers of oxidative damage in cigarette smokers: which biomarkers might reflect acute versus chronic oxidative stress? Free Radic Biol Med 2011; 50:1787-93. [PMID: 21420490 DOI: 10.1016/j.freeradbiomed.2011.03.019] [Citation(s) in RCA: 107] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2011] [Revised: 02/28/2011] [Accepted: 03/11/2011] [Indexed: 11/17/2022]
Abstract
Cigarette smoking predisposes to the development of multiple diseases involving oxidative damage. We measured a range of oxidative damage biomarkers to understand which differ between smokers and nonsmokers and if the levels of these biomarkers change further during the act of smoking itself. Despite overnight abstinence from smoking, smokers had higher levels of plasma total and esterified F(2)-isoprostanes, hydroxyeicosatetraenoic acid products (HETEs), F(4)-neuroprostanes, 7-ketocholesterol, and 24- and 27-hydroxycholesterol. Levels of urinary F(2)-isoprostanes, HETEs, and 8-hydroxy-2'-deoxyguanosine were also increased compared with age-matched nonsmokers. Several biomarkers (plasma free F(2)-isoprostanes, allantoin, and 7β-hydroxycholesterol and urinary F(2)-isoprostane metabolites) were not elevated. The smokers were then asked to smoke a cigarette; this acute smoking elevated plasma and urinary F(2)-isoprostanes, plasma allantoin, and certain cholesterol oxidation products compared to presmoking levels, but not plasma HETEs or urinary 8-hydroxy-2'-deoxyguanosine. Smokers showed differences in plasma fatty acid composition. Our findings confirm that certain oxidative damage biomarkers are elevated in smokers even after a period of abstinence from smoking, whereas these plus some others are elevated after acute smoking. Thus, different biomarkers do not measure identical aspects of oxidative stress.
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Affiliation(s)
- Raymond C S Seet
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
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34
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Syslová K, Kačer P, Vilhanová B, Kuzma M, Lipovová P, Fenclová Z, Lebedová J, Pelclová D. Determination of cysteinyl leukotrienes in exhaled breath condensate: method combining immunoseparation with LC-ESI-MS/MS. J Chromatogr B Analyt Technol Biomed Life Sci 2011; 879:2220-8. [PMID: 21724475 DOI: 10.1016/j.jchromb.2011.06.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2010] [Revised: 05/29/2011] [Accepted: 06/06/2011] [Indexed: 11/13/2022]
Abstract
A rapid and precise method for the identification and quantification of cysteinyl leukotrienes (leukotriene C(4), leukotriene D(4) and leukotriene E(4)), essential markers of bronchial asthma, in exhaled breath condensate was developed. The protocol consists of immunoaffinity separation and a detection step, liquid chromatography combined with electrospray ionization tandem mass spectrometry (LC-ESI-MS/MS). In particular, the selected reaction monitoring mode was used for its extremely high degree of selectivity and the stable-isotope-dilution assay for its high precision of quantification. The developed method was characterized with a high precision (≤ 7.7%, determined as RSD), an acceptable accuracy (90.4-93.7%, determined as recovery), a low limit of detection (≤ 2 pg/ml EBC) and a low limit of quantification (≤ 10 pg/ml EBC). It was compared to other simple, clinically appropriate combinations of pre-treatment methods (solid phase extraction and lyophilization) with LC/MS. Finally, the method (a combination of immunoaffinity separation with LC-MS) was successfully tested in a clinical study where a significant difference was found in the concentration levels of cysteinyl leukotrienes between patients with occupational bronchial asthma and healthy subjects.
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Affiliation(s)
- Kamila Syslová
- Institute of Chemical Technology, Technická 5, 166 28 Prague 6, Czech Republic
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35
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Oger C, Bultel-Poncé V, Guy A, Balas L, Rossi JC, Durand T, Galano JM. The handy use of Brown's P2-Ni catalyst for a skipped diyne deuteration: application to the synthesis of a [D4]-labeled F4t-neuroprostane. Chemistry 2011; 16:13976-80. [PMID: 21077063 DOI: 10.1002/chem.201002304] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Camille Oger
- Institut des Biomolécules Max Mousseron, UMR CNRS 5247, UM1 & UM2, 15, avenue Charles Flahault, Faculté de Pharmacie, Bâtiment D, 34093 Montpellier cedex 05, France
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36
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Mas E, Woodman RJ, Burke V, Puddey IB, Beilin LJ, Durand T, Mori TA. The omega-3 fatty acids EPA and DHA decrease plasma F(2)-isoprostanes: Results from two placebo-controlled interventions. Free Radic Res 2011; 44:983-90. [PMID: 20540666 DOI: 10.3109/10715762.2010.492830] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Omega-3 (omega3) fatty acids, particularly eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), protect against cardiovascular disease. Despite these benefits, concern remains that omega3 fatty acids may increase lipid peroxidation. It has previously been shown that urinary F(2)-isoprostanes (F(2)-IsoPs) were reduced following omega3 fatty acid supplementation in humans. It is now determined whether EPA or DHA supplementation affects plasma F(2)-IsoPs. In two 6-week placebo-controlled interventions, Study A: overweight, dyslipidaemic men; and Study B: treated-hypertensive Type 2 diabetic, patients were randomized to 4 g daily EPA, DHA. Post-intervention plasma F(2)-IsoPs were significantly reduced by EPA (24% in Study A, 19% in Study B) and by DHA (14% in Study A, 23% in Study B) relative to the olive oil group. The fall in plasma F(2)-IsoPs was not altered in analyses that corrected for changes in plasma arachidonic acid, which was reduced with EPA and DHA supplementation. Neither F(3)- nor F(4)-IsoPs were observed in plasma in both studies. These results show that in humans, EPA and DHA reduce in vivo oxidant stress as measured in human plasma and urine.
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Affiliation(s)
- Emilie Mas
- University of Western Australia, Perth, WA, Australia.
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37
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Seet RCS, Lee CYJ, Lim ECH, Quek AML, Huang SH, Khoo CM, Halliwell B. Markers of oxidative damage are not elevated in otherwise healthy individuals with the metabolic syndrome. Diabetes Care 2010; 33:1140-2. [PMID: 20185735 PMCID: PMC2858191 DOI: 10.2337/dc09-2124] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE The role of oxidative damage in the pathogenesis of metabolic syndrome is poorly understood. RESEARCH DESIGN AND METHODS A detailed cross-sectional study was performed to assess the relationship between lipid oxidation products, gamma-glutamyltransferase, high-sensitivity C-reactive protein (hs-CRP), and phospholipase activities with respect to the metabolic status in a cohort of otherwise healthy individuals. RESULTS A total of 179 individuals (87 men and 92 women) aged 43 +/- 14 years (mean +/- SD) participated in this study. There were no differences in the levels of plasma F(2)-isoprostanes, hydroxyeicosatetraenoic acids, cholesterol oxidation products, and phospholipase activities in individuals with features of metabolic syndrome. In multivariate analyses, serum hs-CRP was a consistent independent predictor of metabolic syndrome. CONCLUSIONS Minimal changes were observed in multiple markers of oxidative damage in a well-characterized cohort of individuals with features of metabolic syndrome.
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Affiliation(s)
- Raymond C-S Seet
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
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38
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Mas E, Barden A, Durand T, Galano JM, Croft KD, Mori TA. Measurement of urinary F2-isoprostanes by gas chromatography-mass spectrometry is confounded by interfering substances. Free Radic Res 2009; 44:191-8. [DOI: 10.3109/10715760903390838] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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39
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Hsieh YP, Lin CL, Shiue AL, Yin H, Morrow JD, Hsu JC, Hsieh TC, Wei HJ, Yen HC. Correlation of F4-neuroprostanes levels in cerebrospinal fluid with outcome of aneurysmal subarachnoid hemorrhage in humans. Free Radic Biol Med 2009; 47:814-24. [PMID: 19555757 DOI: 10.1016/j.freeradbiomed.2009.06.026] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2009] [Revised: 05/27/2009] [Accepted: 06/18/2009] [Indexed: 11/29/2022]
Abstract
Aneurysmal subarachnoid hemorrhage (aSAH) is one type of hemorrhagic stroke in humans. F(2)-isoprostanes (F(2)-IsoPs) and F(4)-neuroprostanes (F(4)-NPs), derived from arachidonic acid and docosahexaenoic acid (DHA), respectively, are specific markers of lipid peroxidation. We previously demonstrated that F(2)-IsoPs levels in cerebrospinal fluid (CSF) of aSAH patients positively correlated with poor clinical conditions. In this work, we refined F(4)-NPs analysis and investigated the role of potential oxidative damage to neurons in aSAH patients by detecting F(4)-NPs in CSF. [(2)H(4)]-15-F(2t)-IsoP, rather than [(18)O(2)]-17-F(4c)-NP or [(2)H(4)]-PGF(2 alpha), was used as the internal standard for F(4)-NPs analysis. One problem of the use of [(18)O(2)]-17-F(4c)-NP was the potential interference resulting from F(2)-dihomo-IsoPs in CSF. CSF specimens of 15 aSAH patients for up to 10 days and those of 12 non-aSAH controls were analyzed. First day, mean, and peak levels of F(4)-NPs were all significantly higher in aSAH patients than in controls and correlated with the Fisher Scale and 3-month Glasgow Outcome Scale, but only mean levels of F(4)-NPs correlated with Hunt and Hess Grade. The results first demonstrate oxidative damage to DHA in brain tissue following aSAH and suggest that F(4)-NPs in CSF could be a better predictor for outcome of aSAH than F(2)-IsoPs at early time points.
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Affiliation(s)
- Yu-Ping Hsieh
- Graduate Institute of Medical Biotechnology/Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Tao-Yuan, Taiwan
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40
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Yin H, Liu W, Goleniewska K, Porter NA, Morrow JD, Peebles RS. Dietary supplementation of omega-3 fatty acid-containing fish oil suppresses F2-isoprostanes but enhances inflammatory cytokine response in a mouse model of ovalbumin-induced allergic lung inflammation. Free Radic Biol Med 2009; 47:622-8. [PMID: 19501157 PMCID: PMC2716436 DOI: 10.1016/j.freeradbiomed.2009.05.033] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2009] [Revised: 05/13/2009] [Accepted: 05/31/2009] [Indexed: 12/25/2022]
Abstract
Epidemiological and clinical evidence has suggested that increased dietary intake of fish oil containing omega-3 fatty acids including eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) may be associated with a reduced risk of asthma. However, interventional studies on these effects have been equivocal and controversial. Free radical oxidation products of lipids and cyclooxygenases-derived prostaglandins are believed to play an important role in asthma, and fish oil supplementation may modulate the levels of these critical lipid mediators. We employed a murine model of allergic inflammation produced by sensitization to ovalbumin (OVA) to study the effects of fish oil supplementation on airway inflammation. Our studies demonstrated that omega-3 fatty acids were dose dependently incorporated into mouse lung tissue after dietary supplementation. We examined the oxidative stress status by measuring the levels of isoprostanes (IsoPs), the gold standard for oxidative stress in vivo. OVA challenge caused significant increase of F(2)-IsoPs in mouse lung, suggesting an elevated level of oxidative stress. Compared to the control group, fish oil supplementation led to a significant reduction of F(2)-IsoP (from arachidonic acid) with a concomitant increase of F(3)-IsoPs (from EPA) and F(4)-IsoPs (from DHA). Surprisingly, however, fish oil supplementation enhanced production of proinflammatory cytokine IL-5 and IL-13. Furthermore, fish oil supplementation suppressed the production of pulmonary protective PGE(2) in the bronchoalveolar lavage (BAL) while the level of urinary metabolites of the PGE(2) was increased. Our data suggest that augmented lung inflammation after fish oil supplementation may be due to the reduction of PGE(2) production in the lung and these dichotomous results bring into question the role of fish oil supplementation in the treatment of asthma.
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Affiliation(s)
- Huiyong Yin
- Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN 37232, USA.
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41
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Lipidomic Analysis of Glycerolipid and Cholesteryl Ester Autooxidation Products. Mol Biotechnol 2009; 42:224-68. [DOI: 10.1007/s12033-009-9146-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2008] [Accepted: 01/08/2009] [Indexed: 11/25/2022]
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42
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Zhu M, Gu F, Shi J, Hu J, Hu Y, Zhao Z. Increased oxidative stress and astrogliosis responses in conditional double-knockout mice of Alzheimer-like presenilin-1 and presenilin-2. Free Radic Biol Med 2008; 45:1493-9. [PMID: 18822370 DOI: 10.1016/j.freeradbiomed.2008.08.027] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2008] [Revised: 08/28/2008] [Accepted: 08/29/2008] [Indexed: 10/21/2022]
Abstract
Conditional presenilin 1 and presenilin 2 double knockout causes memory dysfunction and reproduces neurodegenerative phenotypes of Alzheimer disease (AD) in mice. Oxidative stress has been long implicated predominantly in amyloidosis-mediated AD pathologies; however, its role in response to the loss-of-function pathogenic mechanism of AD remains unclear. In this study, we examined the oxidative stress status in PS1 and PS2 double-knockout (PS cDKO) mice using F(2)-isoprostanes (iPF(2alpha)-III) as the marker of lipid peroxidation. Lipid peroxidation was enhanced in a gender- and age-related manner in the PS cDKO mice independent of brain Abeta deposition. Such oxidative abnormalities predominantly in cerebral cortex at 2-4 months of age preceded the onset of many pronounced AD neuropathologies, suggesting that increased lipid peroxidation is not only an early pathophysiological response to PS inactivation, but also a potential culprit responsible for the AD-like neurodegenerative pathologies in the PS cDKO mice. Western blot analysis of cortical glial fibrillary acidic protein demonstrated an increased astrogliosis response to PS inactivation, in particular in the PS cDKO mice at as young as 2 months of age, suggesting that lipid peroxidation and neuronal injury may be closely associated with the loss-of-function neuropathogenic mechanism of AD.
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Affiliation(s)
- Manjie Zhu
- Key Laboratory of Brain Functional Genomics, Ministry of Education of China and the Science and Technology Commission of Shanghai Municipality, Shanghai Institute of Brain Functional Genomics, East China Normal University, Shanghai 200062, China
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43
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Choi GH, Jo MN, Moon SH, Lim SM, Jung AR, Yoon YC, Paik HD. Neuroprotective Effects and Physicochemical Characteristics of Milk Fortified with Fibroin BF-7. Korean J Food Sci Anim Resour 2008. [DOI: 10.5851/kosfa.2008.28.4.431] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
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44
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Jahn U, Galano JM, Durand T. Beyond prostaglandins--chemistry and biology of cyclic oxygenated metabolites formed by free-radical pathways from polyunsaturated fatty acids. Angew Chem Int Ed Engl 2008; 47:5894-955. [PMID: 18649300 DOI: 10.1002/anie.200705122] [Citation(s) in RCA: 150] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Polyunsaturated fatty acids (PUFAs) are important constituents in all organisms. They fulfil many functions, ranging from modulating the structure of membranes to acting as precursors of physiologically important molecules, such as the prostaglandins, which for a long time were the most prominent cyclic PUFA metabolites. However, since the beginning of the 1990s a large variety of cyclic metabolites have been discovered that form under autoxidative conditions in vivo to a much larger extent than do prostaglandins. These compounds--isoprostanes, neuroprostanes, phytoprostanes, and isofurans--proved subsequently to be ubiquitous in nature. They display a wide range of biological activities, and isoprostanes have become the currently most reliable indicators of oxidative stress in humans. In a relatively short time, the structural variety, properties, and applications of the autoxidatively formed cyclic PUFA derivatives have been uncovered.
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Affiliation(s)
- Ullrich Jahn
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo namesti 2, 16610 Prague 6, Czech Republic.
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45
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Zhu MJ, Sun LJ, Liu YQ, Feng YL, Tong HT, Hu YH, Zhao Z. Blood F 2-isoprostanes are significantly associated with abnormalities of lipid status in rats with steatosis. World J Gastroenterol 2008; 14:4677-83. [PMID: 18698683 PMCID: PMC2738793 DOI: 10.3748/wjg.14.4677] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate oxidative stress and lipid peroxidation in hepatic steatosis and the underlying implications in pathological mechanisms of non-alcoholic fatty liver disease (NAFLD).
METHODS: F2-isoprostanes (iPF2α-III) in blood and liver samples from steatotic (n = 9) and control (n = 7) rats were measured as in vivo marker of lipid peroxidation by a mass spectrometric approach. The lipid profile and endogenous antioxidant status (SOD and CAT) in the rats were also analyzed.
RESULTS: Significantly higher levels of iPF2α-III (mean 3.47 vs 2.40 pmol/mg tissue, P = 0.004) and lower activities of SOD (mean 1.26 U vs 1.40 U, P < 0.001) and CAT (mean 1026.36 U/mg vs 1149.68 U/mg protein, without significance) were observed in the livers of steatotic rats. Plasma total iPF2α-III was significantly correlated with the abnormalities of blood lipids as well as alanine aminotransferase (ALT) levels in the rats with simple steatosis, whereas no similar tendencies were observed in the control rats.
CONCLUSION: Enhancement of hepatic oxidative imbalance occurring at the steatotic stage of NAFLD suggests a possibility that manifestation of the local oxidative damage precedes that of systemic oxidative imbalance. Predominant metabolic features of the increased lipid peroxidation further suggest a close association of the oxidative imbalance and the dyslipidemia with functional deterioration of the steatotic liver. The findings need to be further evaluated, especially in human studies.
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46
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Mas E, Michel F, Guy A, Bultel V, Falquet Y, Chardon P, Rossi JC, Cristol JP, Durand T. Quantification of urinary F2-isoprostanes with 4(RS)-F4t-neuroprostane as an internal standard using gas chromatography-mass spectrometry Application to polytraumatized patients. J Chromatogr B Analyt Technol Biomed Life Sci 2008; 872:133-40. [PMID: 18706873 DOI: 10.1016/j.jchromb.2008.07.037] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2008] [Revised: 06/27/2008] [Accepted: 07/22/2008] [Indexed: 11/26/2022]
Abstract
Isoprostanes are a family of prostaglandin isomers produced from oxidation of polyunsaturated fatty acids through a non-enzymatic free radical-catalyzed mechanism. Quantification of F(2)-isoprostanes (F(2)-IsoPs) provides a good index of oxidative stress and allows non-invasive assessment of lipid peroxidation in vivo. Since "interferences peaks" at m/z 573 co-elute with d(4)-15-F(2t)-IsoP preferentially used, we propose a new GC-NICI-MS approach to quantify urinary F(2)-IsoPs by using 4(RS)-F(4t)-neuroprostane as the internal standard. This method was applied to quantify urinary F(2)-IsoPs excretion in healthy volunteers and polytraumatized patients. Our results showed a significant increase (p<0.0001) in urinary F(2)-IsoPs in polytraumatized patients compared with healthy volunteers (4.73+/-2.75 ng/mg vs. 0.811+/-0.359 ng/mg creatinine).
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Affiliation(s)
- Emilie Mas
- Department of Biochemistry, Lapeyronie Hospital, Montpellier, France
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47
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Jahn U, Galano JM, Durand T. Jenseits von Prostaglandinen - Chemie und Biologie radikalisch gebildeter cyclischer oxygenierter Metabolite von mehrfach ungesättigten Fettsäuren. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200705122] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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48
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Musiek ES, Brooks JD, Joo M, Brunoldi E, Porta A, Zanoni G, Vidari G, Blackwell TS, Montine TJ, Milne GL, McLaughlin B, Morrow JD. Electrophilic cyclopentenone neuroprostanes are anti-inflammatory mediators formed from the peroxidation of the omega-3 polyunsaturated fatty acid docosahexaenoic acid. J Biol Chem 2008; 283:19927-35. [PMID: 18490445 PMCID: PMC2459280 DOI: 10.1074/jbc.m803625200] [Citation(s) in RCA: 109] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2008] [Indexed: 11/06/2022] Open
Abstract
The omega-3 polyunsaturated fatty acid docosahexaenoic acid (DHA) possesses potent anti-inflammatory properties and has shown therapeutic benefit in numerous inflammatory diseases. However, the molecular mechanisms of these anti-inflammatory properties are poorly understood. DHA is highly susceptible to peroxidation, which yields an array of potentially bioactive lipid species. One class of compounds are cyclopentenone neuroprostanes (A(4)/J(4)-NPs), which are highly reactive and similar in structure to anti-inflammatory cyclopentenone prostaglandins. Here we show that a synthetic A(4)/J(4)-NP, 14-A(4)-NP (A(4)-NP), potently suppresses lipopolysaccharideinduced expression of inducible nitric-oxide synthase and cyclooxygenase-2 in macrophages. Furthermore, A(4)-NP blocks lipopolysaccharide-induced NF-kappaB activation via inhibition of Ikappa kinase-mediated phosphorylation of IkappaBalpha. Mutation on Ikappa kinase beta cysteine 179 markedly diminishes the effect of A(4)-NP, suggesting that A(4)-NP acts via thiol modification at this residue. Accordingly, the effects of A(4)-NP are independent of peroxisome proliferator-activated receptor-gamma and are dependent on an intact reactive cyclopentenone ring. Interestingly, free radical-mediated oxidation of DHA greatly enhances its anti-inflammatory potency, an effect that closely parallels the formation of A(4)/J(4)-NPs. Furthermore, chemical reduction or conjugation to glutathione, both of which eliminate the bioactivity of A(4)-NP, also abrogate the anti-inflammatory effects of oxidized DHA. Thus, we have demonstrated that A(4)/J(4)-NPs, formed via the oxidation of DHA, are potent inhibitors of NF-kappaB signaling and may contribute to the anti-inflammatory actions of DHA. These findings have implications for understanding the anti-inflammatory properties of omega-3 fatty acids, and elucidate novel interactions between lipid peroxidation products and inflammation.
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Affiliation(s)
- Erik S Musiek
- Division of Clinical Pharmacology, and Department of Neurology, Vanderbilt University Medical Center, Nashville, TN 37232, USA
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49
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SYSLOVA K, KACER P, KUZMA M, KLUSACKOVA P, FENCLOVA Z, LEBEDOVA J, PELCLOVA D. Determination of 8-iso-prostaglandin F2α in exhaled breath condensate using combination of immunoseparation and LC–ESI-MS/MS. J Chromatogr B Analyt Technol Biomed Life Sci 2008; 867:8-14. [DOI: 10.1016/j.jchromb.2008.02.019] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2007] [Revised: 02/21/2008] [Accepted: 02/25/2008] [Indexed: 12/01/2022]
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50
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Long EK, Murphy TC, Leiphon LJ, Watt J, Morrow JD, Milne GL, Howard JRH, Picklo MJ. Trans-4-hydroxy-2-hexenal is a neurotoxic product of docosahexaenoic (22:6; n-3) acid oxidation. J Neurochem 2008; 105:714-24. [DOI: 10.1111/j.1471-4159.2007.05175.x] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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