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Aissia E, Blier PU, Fadhlaoui M, Couture P. Thermal modulation of mitochondrial function is affected by environmental nickel in rainbow trout (Oncorhynchus mykiss). AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 257:106451. [PMID: 36868082 DOI: 10.1016/j.aquatox.2023.106451] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 02/17/2023] [Accepted: 02/19/2023] [Indexed: 06/18/2023]
Abstract
In this study, we investigated the combined effects of temperature and nickel (Ni) contamination on liver mitochondria electron transport system (ETS) enzymes, citrate synthase (CS), phospholipid fatty acid composition and lipid peroxidation in rainbow trout (Oncorhynchus mykiss). Juvenile trout were acclimated for two weeks to two different temperatures (5˚C and 15˚C) and exposed to nickel (Ni; 520 μg/L) for three weeks. Using ratios of ETS enzymes and CS activities, our data suggest that Ni and an elevated temperature acted synergistically to induce a higher capacity for reduction status of the ETS. The response of phospholipid fatty acid profiles to thermal variation was also altered under nickel exposure. In control conditions, the proportion of saturated fatty acids (SFA) was higher at 15˚C than at 5˚C, while the opposite was observed for monounsaturated (MUFA) and polyunsaturated fatty acids (PUFA). However, in nickel contaminated fish, the proportion of SFA was higher at 5˚C than at 15˚C, while PUFA and MUFA followed the opposite direction. A higher PUFA ratio is associated with higher vulnerability to lipid peroxidation. Thiobarbituric Acid Reactive Substances (TBARS) content was higher when the PUFA were in higher proportions, except for Ni-exposed, warm-acclimated fish, in which we reported the lowest level of TBARS but the highest proportion of PUFA. We suspect that the interaction of nickel and temperature on lipid peroxidation is due to their synergistic effects on aerobic energy metabolism, as supported by the decrease in the activity of complex IV of the ETS enzyme activity in those fish, or on antioxidant enzymes and pathways. Overall, our study demonstrates that Ni exposure in heat-challenged fish can lead to the remodelling of the mitochondrial phenotype and potentially stimulate alternative antioxidant mechanisms.
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Affiliation(s)
- Elyas Aissia
- Institut National de la Recherche Scientifique - Centre Eau Terre Environment, Québec, Québec, Canada
| | - Pierre U Blier
- Université du Québec à Rimouski, Rimouski, Québec, Canada
| | - Mariem Fadhlaoui
- Institut National de la Recherche Scientifique - Centre Eau Terre Environment, Québec, Québec, Canada
| | - Patrice Couture
- Institut National de la Recherche Scientifique - Centre Eau Terre Environment, Québec, Québec, Canada.
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Almaida-Pagan PF, Lucas-Sanchez A, Martinez-Nicolas A, Terzibasi E, de Lama MAR, Cellerino A, Mendiola P, de Costa J. Membrane lipids and maximum lifespan in clownfish. FISH PHYSIOLOGY AND BIOCHEMISTRY 2022; 48:53-65. [PMID: 34862943 PMCID: PMC8844168 DOI: 10.1007/s10695-021-01037-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 11/18/2021] [Indexed: 06/13/2023]
Abstract
The longevity-homeoviscous adaptation (LHA) theory of ageing states that lipid composition of cell membranes is linked to metabolic rate and lifespan, which has been widely shown in mammals and birds but not sufficiently in fish. In this study, two species of the genus Amphiprion (Amphiprion percula and Amphiprion clarkii, with estimated maximum lifespan potentials [MLSP] of 30 and 9-16 years, respectively) and the damselfish Chromis viridis (estimated MLSP of 1-2 years) were chosen to test the LHA theory of ageing in a potential model of exceptional longevity. Brain, livers and samples of skeletal muscle were collected for lipid analyses and integral part in the computation of membrane peroxidation indexes (PIn) from phospholipid (PL) fractions and PL fatty acid composition. When only the two Amphiprion species were compared, results pointed to the existence of a negative correlation between membrane PIn value and maximum lifespan, well in line with the predictions from the LHA theory of ageing. Nevertheless, contradictory data were obtained when the two Amphiprion species were compared to the shorter-lived C. viridis. These results along with those obtained in previous studies on fish denote that the magnitude (and sometimes the direction) of the differences observed in membrane lipid composition and peroxidation index with MLSP cannot explain alone the diversity in longevity found among fishes.
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Affiliation(s)
- Pedro F Almaida-Pagan
- Chronobiology Lab, Department of Physiology, Faculty of Biology, University of Murcia, Mare Nostrum Campus, IUIE, IMIB-Arrixaca, 30100, Murcia, Spain.
- Ciber Fragilidad y Envejecimiento Saludable (CIBERFES), Madrid, Spain.
| | - Alejandro Lucas-Sanchez
- Chronobiology Lab, Department of Physiology, Faculty of Biology, University of Murcia, Mare Nostrum Campus, IUIE, IMIB-Arrixaca, 30100, Murcia, Spain
- Ciber Fragilidad y Envejecimiento Saludable (CIBERFES), Madrid, Spain
| | - Antonio Martinez-Nicolas
- Chronobiology Lab, Department of Physiology, Faculty of Biology, University of Murcia, Mare Nostrum Campus, IUIE, IMIB-Arrixaca, 30100, Murcia, Spain
- Ciber Fragilidad y Envejecimiento Saludable (CIBERFES), Madrid, Spain
| | - Eva Terzibasi
- Stazione Zoologica Anton Dohrn, Naples, Campania, Italy
| | - Maria Angeles Rol de Lama
- Chronobiology Lab, Department of Physiology, Faculty of Biology, University of Murcia, Mare Nostrum Campus, IUIE, IMIB-Arrixaca, 30100, Murcia, Spain
- Ciber Fragilidad y Envejecimiento Saludable (CIBERFES), Madrid, Spain
| | | | - Pilar Mendiola
- Chronobiology Lab, Department of Physiology, Faculty of Biology, University of Murcia, Mare Nostrum Campus, IUIE, IMIB-Arrixaca, 30100, Murcia, Spain
- Ciber Fragilidad y Envejecimiento Saludable (CIBERFES), Madrid, Spain
| | - Jorge de Costa
- Chronobiology Lab, Department of Physiology, Faculty of Biology, University of Murcia, Mare Nostrum Campus, IUIE, IMIB-Arrixaca, 30100, Murcia, Spain
- Ciber Fragilidad y Envejecimiento Saludable (CIBERFES), Madrid, Spain
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Van Houcke J, Mariën V, Zandecki C, Seuntjens E, Ayana R, Arckens L. Modeling Neuroregeneration and Neurorepair in an Aging Context: The Power of a Teleost Model. Front Cell Dev Biol 2021; 9:619197. [PMID: 33816468 PMCID: PMC8012675 DOI: 10.3389/fcell.2021.619197] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 02/19/2021] [Indexed: 01/10/2023] Open
Abstract
Aging increases the risk for neurodegenerative disease and brain trauma, both leading to irreversible and multifaceted deficits that impose a clear societal and economic burden onto the growing world population. Despite tremendous research efforts, there are still no treatments available that can fully restore brain function, which would imply neuroregeneration. In the adult mammalian brain, neuroregeneration is naturally limited, even more so in an aging context. In view of the significant influence of aging on (late-onset) neurological disease, it is a critical factor in future research. This review discusses the use of a non-standard gerontology model, the teleost brain, for studying the impact of aging on neurorepair. Teleost fish share a vertebrate physiology with mammals, including mammalian-like aging, but in contrast to mammals have a high capacity for regeneration. Moreover, access to large mutagenesis screens empowers these teleost species to fill the gap between established invertebrate and rodent models. As such, we here highlight opportunities to decode the factor age in relation to neurorepair, and we propose the use of teleost fish, and in particular killifish, to fuel new research in the neuro-gerontology field.
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Affiliation(s)
- Jolien Van Houcke
- Laboratory of Neuroplasticity and Neuroproteomics, Department of Biology, KU Leuven, Leuven, Belgium
| | - Valerie Mariën
- Laboratory of Neuroplasticity and Neuroproteomics, Department of Biology, KU Leuven, Leuven, Belgium
| | - Caroline Zandecki
- Laboratory of Neuroplasticity and Neuroproteomics, Department of Biology, KU Leuven, Leuven, Belgium.,Laboratory of Developmental Neurobiology, Department of Biology, KU Leuven, Leuven, Belgium
| | - Eve Seuntjens
- Laboratory of Developmental Neurobiology, Department of Biology, KU Leuven, Leuven, Belgium.,Leuven Brain Institute, Leuven, Belgium
| | - Rajagopal Ayana
- Laboratory of Neuroplasticity and Neuroproteomics, Department of Biology, KU Leuven, Leuven, Belgium.,Laboratory of Developmental Neurobiology, Department of Biology, KU Leuven, Leuven, Belgium
| | - Lutgarde Arckens
- Laboratory of Neuroplasticity and Neuroproteomics, Department of Biology, KU Leuven, Leuven, Belgium.,Leuven Brain Institute, Leuven, Belgium
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Chetoui I, Bejaoui S, Trabelsi W, Rabeh I, Nechi S, Chelbi E, Ghalghaf M, El Cafsi M, Soudani N. Exposure ofMactra corallinato acute doses of lead: effects on redox status, fatty acid composition and histomorphological aspect. Drug Chem Toxicol 2019; 45:311-323. [DOI: 10.1080/01480545.2019.1693590] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Imene Chetoui
- Faculty of Sciences of Tunis, Biology Department, Research, Laboratory of Ecology, Biology and Physiology of Aquatic Organisms, University of Tunis El Manar, Tunis, Tunisia
| | - Safa Bejaoui
- Faculty of Sciences of Tunis, Biology Department, Research, Laboratory of Ecology, Biology and Physiology of Aquatic Organisms, University of Tunis El Manar, Tunis, Tunisia
| | - Wafa Trabelsi
- Faculty of Sciences of Tunis, Biology Department, Research, Laboratory of Ecology, Biology and Physiology of Aquatic Organisms, University of Tunis El Manar, Tunis, Tunisia
| | - Imen Rabeh
- Faculty of Sciences of Tunis, Biology Department, Research, Laboratory of Ecology, Biology and Physiology of Aquatic Organisms, University of Tunis El Manar, Tunis, Tunisia
| | - Salwa Nechi
- Anatomy and Cytology Service, Mohamed Taher Maamouri Hospital, Nabeul, Tunisia
| | - Emna Chelbi
- Anatomy and Cytology Service, Mohamed Taher Maamouri Hospital, Nabeul, Tunisia
| | - Mohamed Ghalghaf
- Aquatic Environment Exploitation Resources Unit, Higher Institute Fishing and Fish Farming of Bizerte, Menzel Jemil, Tunisia
| | - Mhamed El Cafsi
- Faculty of Sciences of Tunis, Biology Department, Research, Laboratory of Ecology, Biology and Physiology of Aquatic Organisms, University of Tunis El Manar, Tunis, Tunisia
| | - Nejla Soudani
- Faculty of Sciences of Tunis, Biology Department, Research, Laboratory of Ecology, Biology and Physiology of Aquatic Organisms, University of Tunis El Manar, Tunis, Tunisia
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Semba RD, Moaddel R, Zhang P, Ramsden CE, Ferrucci L. Tetra-linoleoyl cardiolipin depletion plays a major role in the pathogenesis of sarcopenia. Med Hypotheses 2019; 127:142-149. [PMID: 31088638 DOI: 10.1016/j.mehy.2019.04.015] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 04/16/2019] [Indexed: 12/25/2022]
Abstract
Sarcopenia, the progressive loss of muscle mass, strength, and physical performance that occurs during aging, is highly prevalent among the elderly. Sarcopenia increases the risk of falls, disability, and death. The biological basis for sarcopenia is not well understood. There are no specific preventive or therapeutic strategies for sarcopenia except exercise. The elucidation of biological pathways and identification of therapeutic targets for treating or preventing sarcopenia remain a high priority in aging research. Mitochondria play a critical role in skeletal muscle by providing energy in the form of ATP, regulation of signaling, calcium homeostasis, autophagy, and other functions. Cardiolipin, a unique dimeric phospholipid specific to mitochondria and an essential component of mitochondrial membranes, is involved in mitochondrial protein transport, maintaining structural organization of mitochondrial membranes, cellular signaling, regulating enzymes involved in β-oxidation of fatty acids, and facilitating normal electron transport chain (ETC) function and generation of ATP. The fatty acid species composition of cardiolipin is critical to mitochondrial bioenergetics, as cardiolipin affects membrane biophysical properties, binds and stabilizes ETC protein complexes, and shapes the curvature of the mitochondrial cristae. Tetra-linoleoyl cardiolipin (18:2)4 comprises ∼80% of cardiolipin in mitochondria in normal human skeletal and cardiac muscle and is optimal for effective ETC function and ATP generation. Aging is associated with a decrease in cardiolipin content, decrease in tetra-linoleoyl cardiolipin (18:2)4 and replacement of linoleic acid (18:2) with other fatty acids in cardiolipin composition, decline of ETC function, and increased generation of reactive oxygen species in muscle. Together, these findings from the literature prompt the hypothesis that depletion of the cardiolipin (18:2)4 species may be at the root of mitochondrial dysfunction with aging, in turn leading to sarcopenia. Corroboration of the tetra-linoleoyl cardiolipin depletion hypothesis suggests new leads for the prevention and treatment of sarcopenia by enhancing the biosynthesis, accretion, and integrity of tetra-linoleoyl cardiolipin.
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Affiliation(s)
- Richard D Semba
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, United States.
| | - Ruin Moaddel
- National Institute on Aging, National Institutes of Health, Baltimore, MD, United States
| | - Pingbo Zhang
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Christopher E Ramsden
- National Institute on Aging, National Institutes of Health, Baltimore, MD, United States; National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, United States
| | - Luigi Ferrucci
- National Institute on Aging, National Institutes of Health, Baltimore, MD, United States
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Netto MB, de Oliveira Junior AN, Goldim M, Mathias K, Fileti ME, da Rosa N, Laurentino AO, de Farias BX, Costa AB, Rezin GT, Fortunato JJ, Giustina AD, Barichello T, Dal-Pizzol F, Petronilho F. Oxidative stress and mitochondrial dysfunction contributes to postoperative cognitive dysfunction in elderly rats. Brain Behav Immun 2018; 73:661-669. [PMID: 30041011 DOI: 10.1016/j.bbi.2018.07.016] [Citation(s) in RCA: 136] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 07/13/2018] [Accepted: 07/20/2018] [Indexed: 11/25/2022] Open
Abstract
Postoperative cognitive dysfunction (POCD) is defined by cognitive impairment determined by neuropsychological tests from before to after surgery. Several mechanisms have been proposed in this bidirectional communication between the immune system and the brain after surgery. We aimed at understanding the mechanisms underlying POCD elderly rats in an experimental tibial fracture model. Elderly male Wistar rats were subjected to tibial fracture (TF) model. Control (sham) and fracture (TF) groups were followed to determine nitrite/nitrate concentration; oxidative damage to lipids and proteins; the activity of antioxidant enzymes (superoxide dismutase-SOD and catalase-CAT), mitochondrial respiratory chain enzymes, and creatine kinase (CK); and BDNF levels in the hippocampus and prefrontal cortex (at 24 h and at seven days) and cognitive function through habituation to the open field task and novel object recognition task (only at seven days). TF group presented increased concentration of nitrite/nitrate, hippocampal lipid peroxidation at seven days, protein oxidative damage in the prefrontal cortex and hippocampus at 24 h, decreased antioxidant activity in both structures on the first postoperative day and compromised function of the mitochondrial respiratory chain complexes as well as the CK enzyme. In addition, the levels of BDNF were reduced and memory function was impaired in the TF group. In conclusion, elderly rats submitted to an experimental model of tibial fracture displayed memory impairment accompanied by an increase in oxidative stress, mitochondrial dysfunction and reduced neurotrophin level.
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Affiliation(s)
- Martins Back Netto
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Graduate Program in Health Sciences, Health Sciences Unit, University of South Santa Catarina, Tubarão, SC, Brazil
| | - Aloir Neri de Oliveira Junior
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Graduate Program in Health Sciences, Health Sciences Unit, University of South Santa Catarina, Tubarão, SC, Brazil
| | - Mariana Goldim
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Graduate Program in Health Sciences, Health Sciences Unit, University of South Santa Catarina, Tubarão, SC, Brazil
| | - Khiany Mathias
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Graduate Program in Health Sciences, Health Sciences Unit, University of South Santa Catarina, Tubarão, SC, Brazil
| | - Maria Eduarda Fileti
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Graduate Program in Health Sciences, Health Sciences Unit, University of South Santa Catarina, Tubarão, SC, Brazil
| | - Naiana da Rosa
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Graduate Program in Health Sciences, Health Sciences Unit, University of South Santa Catarina, Tubarão, SC, Brazil
| | - Ana Olivia Laurentino
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Graduate Program in Health Sciences, Health Sciences Unit, University of South Santa Catarina, Tubarão, SC, Brazil
| | - Bianca Xavier de Farias
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Graduate Program in Health Sciences, Health Sciences Unit, University of South Santa Catarina, Tubarão, SC, Brazil
| | - Ana Beatriz Costa
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Graduate Program in Health Sciences, Health Sciences Unit, University of South Santa Catarina, Tubarão, SC, Brazil
| | - Gislaine Tezza Rezin
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Graduate Program in Health Sciences, Health Sciences Unit, University of South Santa Catarina, Tubarão, SC, Brazil
| | - Jucelia Jeremias Fortunato
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Graduate Program in Health Sciences, Health Sciences Unit, University of South Santa Catarina, Tubarão, SC, Brazil
| | - Amanda Della Giustina
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Graduate Program in Health Sciences, Health Sciences Unit, University of South Santa Catarina, Tubarão, SC, Brazil
| | - Tatiana Barichello
- Laboratory of Experimental Pathophysiology, Graduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil; Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA
| | - Felipe Dal-Pizzol
- Laboratory of Experimental Pathophysiology, Graduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
| | - Fabricia Petronilho
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Graduate Program in Health Sciences, Health Sciences Unit, University of South Santa Catarina, Tubarão, SC, Brazil.
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7
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Lopes SC, Ivanova G, de Castro B, Gameiro P. Revealing cardiolipins influence in the construction of a significant mitochondrial membrane model. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2018; 1860:2465-2477. [PMID: 30040925 DOI: 10.1016/j.bbamem.2018.07.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 07/13/2018] [Accepted: 07/17/2018] [Indexed: 12/24/2022]
Abstract
Cardiolipins are essential for the integrity and the dynamics of the mitochondria membrane, where they exclusively exist in eukaryotes. Changes in cardiolipins membrane levels have been related to several cardiac health disorders. To evaluate cardiolipins impact on membrane properties a physico-chemical study was conducted using steady-state fluorescence anisotropy, dynamic light scattering and Nuclear Magnetic Resonance (1H and 31P NMR). Different binary and ternary mixtures of 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphoethanolamine, 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine and a natural extract of bovine heart cardiolipin were used as models of mitochondrial membrane. The main transition temperatures, obtained by the first two techniques, revealed to be cardiolipins dependent. Cardiolipins also showed to act as a bidirectional regulator of membrane fluidity. 1H and 31P NMR results revealed that cardiolipins affects the conformation, mobility and structural order of the phospholipid molecules. According to 1H NMR results, cardiolipins disturbs the overall structure and packing order of membrane demonstrated with the decrease of the line broadening and shift of all resonances. The 31P NMR line shape analysis confirmed that, at distinct temperatures, different lipid phases coexist in the systems, and their type and quantitative distribution are cardiolipins dependent. In summary, cardiolipins presence/absence dramatically changes the membrane properties and has a major impact in the construction of a mitochondrial membrane model.
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Affiliation(s)
- S C Lopes
- Requimte, LAQV, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal.
| | - G Ivanova
- Requimte, LAQV, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal.
| | - B de Castro
- Requimte, LAQV, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal.
| | - P Gameiro
- Requimte, LAQV, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal.
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Fadhlaoui M, Couture P. Combined effects of temperature and metal exposure on the fatty acid composition of cell membranes, antioxidant enzyme activities and lipid peroxidation in yellow perch (Perca flavescens). AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2016; 180:45-55. [PMID: 27649097 DOI: 10.1016/j.aquatox.2016.09.005] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Revised: 09/02/2016] [Accepted: 09/06/2016] [Indexed: 05/26/2023]
Abstract
The aim of this study was to investigate the combined effects of temperature and metal contamination (cadmium and nickel) on phospholipid fatty acid composition, antioxidant enzyme activities and lipid peroxidation in fish. Yellow perch were acclimated to two different temperatures (9°C and 28°C) and exposed either to Cd or Ni (respectively 4μg/L and 600μg/L) for seven weeks. Superoxide dismutase, catalase, glutathione-S-transferase, glutathione peroxidase activities and glutathione concentration were measured as indicators of antioxidant capacities, while malondialdehyde concentration was used as an indicator of lipid peroxidation. Poikilotherms including fish counteract the effects of temperature on phospholipid fatty acid ordering by remodelling their composition to maintain optimal fluidity. Accordingly, in our study, the fatty acid composition of yellow perch muscle at 9°C was enhanced in monounsaturated (MUFA) and polyunsaturated fatty acids (PUFA) compared to fish maintained at 28°C, in agreement with the theory of homeoviscous adaptation. Using ratios of various fatty acids as surrogates for desaturase and elongase activities, our data suggests that modification of the activity of these enzymes is responsible for the thermal acclimation of phospholipid fatty acid profiles. However, this response was altered under Ni and Cd exposure: PUFA decreased (specifically n-6 PUFA) while the proportion of saturated fatty acids increased at 9°C, whereas at 28°C, PUFA increased to proportions exceeding those observed at 9°C. Lipid peroxidation could be observed under all experimental conditions. Both enzymatic and non-enzymatic antioxidant defense systems acted cooperatively to cope with oxidative stress leading to lipid peroxidation, which was not affected by temperature acclimation as indicated by malondialdehyde concentration, in spite of a higher polyinsaturation in cold-acclimated fish which would be predicted to increase their vulnerability to peroxidation. However, in warm-acclimated, Ni-exposed fish, in which the highest proportion of PUFA was observed, lower concentrations of malondialdehyde were measured, suggesting an overcompensation of antioxidant mechanisms in these fish which could represent a substantial metabolic cost and explain their lower condition.
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Affiliation(s)
- Mariem Fadhlaoui
- Institut National de la Recherche Scientifique, Centre Eau Terre Environment, 490 de la Couronne, QC G1K 9A9, Canada
| | - Patrice Couture
- Institut National de la Recherche Scientifique, Centre Eau Terre Environment, 490 de la Couronne, QC G1K 9A9, Canada.
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Van houcke J, De Groef L, Dekeyster E, Moons L. The zebrafish as a gerontology model in nervous system aging, disease, and repair. Ageing Res Rev 2015; 24:358-68. [PMID: 26538520 DOI: 10.1016/j.arr.2015.10.004] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 10/14/2015] [Accepted: 10/26/2015] [Indexed: 12/12/2022]
Abstract
Considering the increasing number of elderly in the world's population today, developing effective treatments for age-related pathologies is one of the biggest challenges in modern medical research. Age-related neurodegeneration, in particular, significantly impacts important sensory, motor, and cognitive functions, seriously constraining life quality of many patients. Although our understanding of the causal mechanisms of aging has greatly improved in recent years, animal model systems still have much to tell us about this complex process. Zebrafish (Danio rerio) have gained enormous popularity for this research topic over the past decade, since their life span is relatively short but, like humans, they are still subject to gradual aging. In addition, the extensive characterization of its well-conserved molecular and cellular physiology makes the zebrafish an excellent model to unravel the underlying mechanisms of aging, disease, and repair. This review provides a comprehensive overview of the progress made in zebrafish gerontology, with special emphasis on nervous system aging. We review the evidence that classic hallmarks of aging can also be recognized within this small vertebrate, both at the molecular and cellular level. Moreover, we illustrate the high level of similarity with age-associated human pathologies through a survey of the functional deficits that arise as zebrafish age.
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Betancor MB, Almaida-Pagán PF, Hernández A, Tocher DR. Effects of dietary fatty acids on mitochondrial phospholipid compositions, oxidative status and mitochondrial gene expression of zebrafish at different ages. FISH PHYSIOLOGY AND BIOCHEMISTRY 2015; 41:1187-204. [PMID: 26156499 DOI: 10.1007/s10695-015-0079-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Accepted: 05/16/2015] [Indexed: 05/25/2023]
Abstract
Mitochondrial decay is generally associated with impairment in the organelle bioenergetics function and increased oxidative stress, and it appears that deterioration of mitochondrial inner membrane phospholipids (PL) and accumulation of mitochondrial DNA (mtDNA) mutations are among the main mechanisms involved in this process. In the present study, mitochondrial membrane PL compositions, oxidative status (TBARS content and SOD activity) and mtDNA gene expression of muscle and liver were analyzed in zebrafish fed two diets with lipid supplied either by rapeseed oil (RO) or a blend 60:40 of RO and DHA500 TG oil (DHA). Two feeding trials were performed using zebrafish from the same population of two ages (8 and 21 months). Dietary FA composition affected fish growth in 8-month-old animals, which could be related to an increase in stress promoted by diet composition. Lipid peroxidation was considerably higher in mitochondria of 8-month-old zebrafish fed the DHA diet than in animals fed the RO diet. This could indicate higher oxidative damage to mitochondrial lipids, very likely due to increased incorporation of DHA in PL of mitochondrial membranes. Lipids would be among the first molecules affected by mitochondrial reactive oxygen species, and lipid peroxidation could propagate oxidative reactions that would damage other molecules, including mtDNA. Mitochondrial lipid peroxidation and gene expression of 21-month-old fish showed lower responsiveness to diet composition than those of younger fish. Differences found in the effect of diet composition on mitochondrial lipids between the two age groups could be indicating age-related changes in the ability to maintain structural homeostasis of mitochondrial membranes.
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Affiliation(s)
- M B Betancor
- School of Natural Sciences, Institute of Aquaculture, University of Stirling, Stirling, FK9 4LA, Scotland, UK.
| | - P F Almaida-Pagán
- School of Natural Sciences, Institute of Aquaculture, University of Stirling, Stirling, FK9 4LA, Scotland, UK
| | - A Hernández
- School of Natural Sciences, Institute of Aquaculture, University of Stirling, Stirling, FK9 4LA, Scotland, UK
| | - D R Tocher
- School of Natural Sciences, Institute of Aquaculture, University of Stirling, Stirling, FK9 4LA, Scotland, UK
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Almaida-Pagán PF, De Santis C, Rubio-Mejía OL, Tocher DR. Dietary fatty acids affect mitochondrial phospholipid compositions and mitochondrial gene expression of rainbow trout liver at different ages. J Comp Physiol B 2014; 185:73-86. [PMID: 25398637 DOI: 10.1007/s00360-014-0870-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Revised: 09/12/2014] [Accepted: 10/21/2014] [Indexed: 11/28/2022]
Abstract
Mitochondria are among the first responders to various stressors that challenge the homeostasis of cells and organisms. Mitochondrial decay is generally associated with impairment in the organelle bioenergetics function and increased oxidative stress, and it appears that deterioration of mitochondrial inner membrane phospholipids (PL), particularly cardiolipin (CL), and accumulation of mitochondrial DNA (mtDNA) mutations are among the main mechanisms involved in this process. In the present study, liver mitochondrial membrane PL compositions, lipid peroxidation, and mtDNA gene expression were analyzed in rainbow trout fed three diets with the same base formulation but with lipid supplied either by fish oil (FO), rapeseed oil (RO), or high DHA oil (DHA) during 6 weeks. Specifically, two feeding trials were performed using fish from the same population of two ages (1 and 3 years), and PL class compositions of liver mitochondria, fatty acid composition of individual PL classes, TBARS content, and mtDNA expression were determined. Dietary fatty acid composition strongly affected mitochondrial membrane composition from trout liver but observed changes did not fully reflect the diet, particularly when it contained high DHA. The changes were PL specific, CL being particularly resistant to changes in DHA. Some significant differences observed in expression of mtDNA with diet may suggest long-term dietary effects in mitochondrial gene expression which could affect electron transport chain function. All the changes were influenced by fish age, which could be related to the different growth rates observed between 1- and 3-year-old trout but that could also indicate age-related changes in the ability to maintain structural homeostasis of mitochondrial membranes.
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Affiliation(s)
- P F Almaida-Pagán
- School of Natural Sciences, Institute of Aquaculture, University of Stirling, Stirling, FK9 4LA, Scotland, UK,
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Almaida-Pagán PF, Lucas-Sánchez A, Tocher DR. Changes in mitochondrial membrane composition and oxidative status during rapid growth, maturation and aging in zebrafish, Danio rerio. Biochim Biophys Acta Mol Cell Biol Lipids 2014; 1841:1003-11. [PMID: 24769342 DOI: 10.1016/j.bbalip.2014.04.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2013] [Revised: 04/01/2014] [Accepted: 04/17/2014] [Indexed: 11/25/2022]
Abstract
Considering membranes and membrane components as possible pacemakers of the main processes taking place inside mitochondria, changes in phospholipids or fatty acids could play a central role linking different mechanisms involved in cumulative damage to cell molecules and dysfunction during periods of high stress, such as rapid growth and aging. Changes affecting either lipid class or fatty acid compositions could affect phospholipid and membrane properties and alter mitochondrial function and cell viability. In the present study, mitochondrial oxidative status and mitochondrial membrane phospholipid compositions were analyzed throughout the life-cycle of zebrafish. TBARS content significantly increased in 18-month-old fish while aconitase activity decreased in 24-month-old fish, which have been related with oxidative damage to molecules. Mitochondria-specific superoxide dismutase decreased in 24-month-old animals although this change was not statistically significant. Age affected both mitochondrial phospholipid content and the peroxidation index of most phospholipid classes suggesting that oxidative damage to mitochondrial lipids was occurring.
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Affiliation(s)
- Pedro F Almaida-Pagán
- Institute of Aquaculture, School of Natural Sciences, University of Stirling, Stirling FK9 4LA, Scotland, United Kingdom.
| | | | - Douglas R Tocher
- Institute of Aquaculture, School of Natural Sciences, University of Stirling, Stirling FK9 4LA, Scotland, United Kingdom
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Otsuru M, Yu Y, Mizoi J, Kawamoto-Fujioka M, Wang J, Fujiki Y, Nishida I. Mitochondrial Phosphatidylethanolamine Level Modulates Cyt c Oxidase Activity to Maintain Respiration Capacity in Arabidopsis thaliana Rosette Leaves. ACTA ACUST UNITED AC 2013; 54:1612-9. [DOI: 10.1093/pcp/pct104] [Citation(s) in RCA: 17] [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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Lucas-Sánchez A, Almaida-Pagán PF, Tocher DR, Mendiola P, de Costa J. Age-related changes in mitochondrial membrane composition of Nothobranchius rachovii. J Gerontol A Biol Sci Med Sci 2013; 69:142-51. [PMID: 23685767 DOI: 10.1093/gerona/glt066] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Mitochondrial membrane composition may be a critical factor in the mechanisms of the aging process by influencing the propagation of reactions involved in mitochondrial function during periods of high stress. Changes affecting either lipid class or fatty acid compositions could affect phospholipid properties and alter mitochondrial function and cell viability. In the present study, mitochondrial membrane phospholipid compositions were analyzed throughout the life cycle of Nothobranchius rachovii. Mitochondrial phospholipids showed several changes with age. Proportions of cardiolipin decreased and those of sphingomyelin increased between 11- and 14-month-old fish. Fatty acid compositions of individual phospholipids in mitochondria were also significantly affected with age. These data suggest increasing damage to mitochondrial lipids during the life cycle of N. rachovii that could be one of the main factors related with and contributing to degraded mitochondrial function associated with the aging process.
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Affiliation(s)
- Alejandro Lucas-Sánchez
- Department of Physiology, Faculty of Biology, University of Murcia, Campus de Espinardo, 30100 Murcia, Spain.
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