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Batandier C, Poyot T, Marissal-Arvy N, Couturier K, Canini F, Roussel AM, Hininger-Favier I. Acute emotional stress and high fat/high fructose diet modulate brain oxidative damage through NrF2 and uric acid in rats. Nutr Res 2020; 79:23-34. [PMID: 32610255 DOI: 10.1016/j.nutres.2020.05.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 03/30/2020] [Accepted: 05/15/2020] [Indexed: 01/08/2023]
Abstract
Studies focusing on the interaction of dietary and acute emotional stress on oxidative stress in cortex frontal and in brain mitochondria are scarce. Dietary-induced insulin resistance, as observed in Western diets, has been associated with increased oxidative stress causing mitochondrial dysfunction. We hypothesized that acute emotional stress could be an aggravating factor by impacting redox status in cortex and brain mitochondria. Thus, the aim of the present study was to evaluate the combination of an insulin resistance inducing high-fat/high-fructose (HF/HFr) diet and acute emotional stress on brain oxidative stress in rats. We measured several oxidative stress parameters (carbonyls, FRAP, TBARS assays, GSH, GSSG, oxidized DNA, mRNA expression of redox proteins (Nrf2), and uric acid). The HF/HFr diet resulted in increased oxidative stress both in the brain mitochondria and in the frontal cortex and decreased expression of the Nrf2 gene. The emotional stress induced an oxidative response in plasma and in brain mitochondria of the control group. In the HF/HFr group it triggered an increase expression of the redox transcription factor Nrf2 and its downstream antioxidant genes. This suggests an improvement of the redox stress tolerance in response to an enhanced production of reactive oxygen species. Accordingly, a blunted oxidative effect on several markers was observed in plasma and brain of HF/HFr-stressed group. This was confirmed in a parallel study using lipopolysaccharide as a stress model. Beside the Nrf2 increase, the stress induced a stronger UA release in HF/HFr which could take a part in the redox stress.
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Affiliation(s)
- C Batandier
- Univ. Grenoble Alpes, Inserm, LBFA, 38000 Grenoble, France
| | - T Poyot
- Institut de Recherche Biomédicale des Armées (IRBA), BP73, 91223 Brétigny-sur-Orge, Cedex, France
| | - N Marissal-Arvy
- Bordeaux University, Laboratory of Nutrition, Memory and glucocorticoid, UMR 1286, 33076 Bordeaux Cedex, France; INRA, Laboratory of Nutrition and Integrative Neurobiology, UMR 1286, 33076 Bordeaux Cedex, France
| | - K Couturier
- Univ. Grenoble Alpes, Inserm, LBFA, 38000 Grenoble, France
| | - F Canini
- Institut de Recherche Biomédicale des Armées (IRBA), BP73, 91223 Brétigny-sur-Orge, Cedex, France; Ecole du Val de Grâce, 1 place A. Laveran, 75230 Paris, France
| | - A M Roussel
- Univ. Grenoble Alpes, Inserm, LBFA, 38000 Grenoble, France
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Usal M, Regnault C, Veyrenc S, Couturier K, Batandier C, Bulteau AL, Lejon D, Combourieu B, Lafond T, Raveton M, Reynaud S. Concomitant exposure to benzo[a]pyrene and triclosan at environmentally relevant concentrations induces metabolic syndrome with multigenerational consequences in Silurana (Xenopus) tropicalis. Sci Total Environ 2019; 689:149-159. [PMID: 31271984 DOI: 10.1016/j.scitotenv.2019.06.386] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 06/18/2019] [Accepted: 06/23/2019] [Indexed: 06/09/2023]
Abstract
Numerous studies suggest that amphibians are highly sensitive to endocrine disruptors (ED) but their precise role in population decline remains unknown. This study shows that frogs exposed to a mixture of ED throughout their life cycle, at environmentally relevant concentrations, developed an unexpected metabolic syndrome. Female Silurana (Xenopus) tropicalis exposed to a mixture of benzo[a]pyrene and triclosan (50 ng·L-1 each) from the tadpole stage developed liver steatosis and transcriptomic signature associated with glucose intolerance syndrome, and pancreatic insulin hyper secretion typical of pre-diabetes. These metabolic disorders were associated with delayed metamorphosis and developmental mortality in their progeny, both of which have been linked to reduced adult recruitment and reproductive success. Indeed, F1 females were smaller and lighter and presented reduced reproductive capacities, demonstrating a reduced fitness of ED-exposed Xenopus. Our results confirm that amphibians are highly sensitive to ED even at concentrations considered to be safe for other animals. This study demonstrates that ED might be considered as direct contributing factors to amphibian population decline, due to their disruption of energetic metabolism.
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Affiliation(s)
- Marie Usal
- Univ. Grenoble-Alpes, Univ. Savoie Mont Blanc, CNRS, LECA, 38000 Grenoble, France
| | - Christophe Regnault
- Univ. Grenoble-Alpes, Univ. Savoie Mont Blanc, CNRS, LECA, 38000 Grenoble, France
| | - Sylvie Veyrenc
- Univ. Grenoble-Alpes, Univ. Savoie Mont Blanc, CNRS, LECA, 38000 Grenoble, France.
| | | | | | - Anne-Laure Bulteau
- Institut de Génomique Fonctionnelle de Lyon, Univ. Lyon 1, CNRS UMR5242, Ecole Normale Supérieure de Lyon, 69000 Lyon, France.
| | - David Lejon
- Rovaltain Research Company, F26300 Alixan, France.
| | | | - Thomas Lafond
- Centre de Ressources Biologiques Xénopes, Univ. Rennes 1, CNRS, UMS 3387 Rennes, France.
| | - Muriel Raveton
- Univ. Grenoble-Alpes, Univ. Savoie Mont Blanc, CNRS, LECA, 38000 Grenoble, France.
| | - Stéphane Reynaud
- Univ. Grenoble-Alpes, Univ. Savoie Mont Blanc, CNRS, LECA, 38000 Grenoble, France.
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Siti F, Dubouchaud H, Hininger I, Quiclet C, Vial G, Galinier A, Casteilla L, Fontaine E, Batandier C, Couturier K. Maternal exercise before and during gestation modifies liver and muscle mitochondria in rat offspring. ACTA ACUST UNITED AC 2019; 222:jeb.194969. [PMID: 31019067 DOI: 10.1242/jeb.194969] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Accepted: 04/05/2019] [Indexed: 01/09/2023]
Abstract
It is now well established that the intrauterine environment is of major importance for offspring health during later life. Endurance training during pregnancy is associated with positive metabolic adjustments and beneficial effects on the balance between pro-oxidants and antioxidants (redox state) in the offspring. Our hypothesis was that these changes could rely on mitochondrial adaptations in the offspring due to modifications of the fetal environment induced by maternal endurance training. Therefore, we compared the liver and skeletal muscle mitochondrial function and the redox status of young rats whose mothers underwent moderate endurance training (treadmill running) before and during gestation (T) with those of young rats from untrained mothers (C). Our results show a significant reduction in the spontaneous H2O2 release by liver and muscle mitochondria in the T versus C offspring (P<0.05). These changes were accompanied by alterations in oxygen consumption. Moreover, the percentage of short-chain fatty acids increased significantly in liver mitochondria from T offspring. This may lead to improvements in the fluidity and the flexibility of the membrane. In plasma, glutathione peroxidase activity and protein oxidation were significantly higher in T offspring than in C offspring (P<0.05). Such changes in plasma could represent an adaptive signal transmitted from mothers to their offspring. We thus demonstrated for the first time, to our knowledge, that it is possible to act on bioenergetic function including alterations of mitochondrial function in offspring by modifying maternal physical activity before and during pregnancy. These changes could be crucial for the future health of the offspring.
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Affiliation(s)
- Farida Siti
- Université Grenoble Alpes, INSERM, LBFA, 38058 Grenoble, France.,Université Grenoble Alpes, UFR STAPS, SFR Sport Exercice Motricité, 38058 Grenoble, France.,Department of Medical Pharmacy, Universitas Indonesia, 10430 Jakarta, Indonesia
| | - Hervé Dubouchaud
- Université Grenoble Alpes, INSERM, LBFA, 38058 Grenoble, France.,Université Grenoble Alpes, UFR STAPS, SFR Sport Exercice Motricité, 38058 Grenoble, France
| | | | - Charline Quiclet
- Université Grenoble Alpes, INSERM, LBFA, 38058 Grenoble, France.,Université Grenoble Alpes, UFR STAPS, SFR Sport Exercice Motricité, 38058 Grenoble, France
| | - Guillaume Vial
- Université Grenoble Alpes, INSERM, HP2, 38000 Grenoble, France
| | - Anne Galinier
- Université de Toulouse, STROMALab, CNRS: ERL5311, EFS: INP-ENVT, INSERM: U-1031, UPS, 31100 Toulouse, France
| | - Louis Casteilla
- Université de Toulouse, STROMALab, CNRS: ERL5311, EFS: INP-ENVT, INSERM: U-1031, UPS, 31100 Toulouse, France
| | - Eric Fontaine
- Université Grenoble Alpes, INSERM, LBFA, 38058 Grenoble, France.,Centre Hospitalier Universitaire Grenoble Alpes, 38000 Grenoble, France
| | | | - Karine Couturier
- Université Grenoble Alpes, INSERM, LBFA, 38058 Grenoble, France .,Université Grenoble Alpes, UFR STAPS, SFR Sport Exercice Motricité, 38058 Grenoble, France
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Regnault C, Usal M, Veyrenc S, Couturier K, Batandier C, Bulteau AL, Lejon D, Sapin A, Combourieu B, Chetiveaux M, Le May C, Lafond T, Raveton M, Reynaud S. Unexpected metabolic disorders induced by endocrine disruptors in Xenopus tropicalis provide new lead for understanding amphibian decline. Proc Natl Acad Sci U S A 2018; 115:E4416-E4425. [PMID: 29686083 PMCID: PMC5948982 DOI: 10.1073/pnas.1721267115] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Despite numerous studies suggesting that amphibians are highly sensitive to endocrine disruptors (EDs), both their role in the decline of populations and the underlying mechanisms remain unclear. This study showed that frogs exposed throughout their life cycle to ED concentrations low enough to be considered safe for drinking water, developed a prediabetes phenotype and, more commonly, a metabolic syndrome. Female Xenopus tropicalis exposed from tadpole stage to benzo(a)pyrene or triclosan at concentrations of 50 ng⋅L-1 displayed glucose intolerance syndrome, liver steatosis, liver mitochondrial dysfunction, liver transcriptomic signature, and pancreatic insulin hypersecretion, all typical of a prediabetes state. This metabolic syndrome led to progeny whose metamorphosis was delayed and occurred while the individuals were both smaller and lighter, all factors that have been linked to reduced adult recruitment and likelihood of reproduction. We found that F1 animals did indeed have reduced reproductive success, demonstrating a lower fitness in ED-exposed Xenopus Moreover, after 1 year of depuration, Xenopus that had been exposed to benzo(a)pyrene still displayed hepatic disorders and a marked insulin secretory defect resulting in glucose intolerance. Our results demonstrate that amphibians are highly sensitive to EDs at concentrations well below the thresholds reported to induce stress in other vertebrates. This study introduces EDs as a possible key contributing factor to amphibian population decline through metabolism disruption. Overall, our results show that EDs cause metabolic disorders, which is in agreement with epidemiological studies suggesting that environmental EDs might be one of the principal causes of metabolic disease in humans.
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Affiliation(s)
- Christophe Regnault
- Univ. Grenoble-Alpes, Univ. Savoie Mont Blanc, CNRS, LECA, 38000 Grenoble, France
| | - Marie Usal
- Univ. Grenoble-Alpes, Univ. Savoie Mont Blanc, CNRS, LECA, 38000 Grenoble, France
| | - Sylvie Veyrenc
- Univ. Grenoble-Alpes, Univ. Savoie Mont Blanc, CNRS, LECA, 38000 Grenoble, France
| | | | | | - Anne-Laure Bulteau
- Institut de Génomique Fonctionnelle de Lyon, Université Lyon 1, CNRS UMR 5242, Ecole Normale Supérieure de Lyon, 69000 Lyon, France
| | - David Lejon
- Rovaltain Research Company, F-26300 Alixan, France
| | | | | | - Maud Chetiveaux
- Plate-forme Therassay, l'Institut du Thorax, INSERM, CNRS, Université de Nantes, 44007 Nantes, France
| | - Cédric Le May
- Plate-forme Therassay, l'Institut du Thorax, INSERM, CNRS, Université de Nantes, 44007 Nantes, France
| | - Thomas Lafond
- Centre de Ressources Biologiques Xénopes, Université Rennes 1, CNRS, Unité Mixte de Service 3387, 35042 Rennes, France
| | - Muriel Raveton
- Univ. Grenoble-Alpes, Univ. Savoie Mont Blanc, CNRS, LECA, 38000 Grenoble, France
| | - Stéphane Reynaud
- Univ. Grenoble-Alpes, Univ. Savoie Mont Blanc, CNRS, LECA, 38000 Grenoble, France;
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Millet A, Cuisinier A, Bouzat P, Batandier C, Lemasson B, Stupar V, Pernet-Gallay K, Crespy T, Barbier EL, Payen JF. Hypertonic sodium lactate reverses brain oxygenation and metabolism dysfunction after traumatic brain injury. Br J Anaesth 2018; 120:1295-1303. [PMID: 29793596 DOI: 10.1016/j.bja.2018.01.025] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 12/20/2017] [Accepted: 01/30/2018] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND The mechanisms by which hypertonic sodium lactate (HSL) solution act in injured brain are unclear. We investigated the effects of HSL on brain metabolism, oxygenation, and perfusion in a rodent model of diffuse traumatic brain injury (TBI). METHODS Thirty minutes after trauma, anaesthetised adult rats were randomly assigned to receive a 3 h infusion of either a saline solution (TBI-saline group) or HSL (TBI-HSL group). The sham-saline and sham-HSL groups received no insult. Three series of experiments were conducted up to 4 h after TBI (or equivalent) to investigate: 1) brain oedema using diffusion-weighted magnetic resonance imaging and brain metabolism using localized 1H-magnetic resonance spectroscopy (n = 10 rats per group). The respiratory control ratio was then determined using oxygraphic analysis of extracted mitochondria, 2) brain oxygenation and perfusion using quantitative blood-oxygenation-level-dependent magnetic resonance approach (n = 10 rats per group), and 3) mitochondrial ultrastructural changes (n = 1 rat per group). RESULTS Compared with the TBI-saline group, the TBI-HSL and the sham-operated groups had reduced brain oedema. Concomitantly, the TBI-HSL group had lower intracellular lactate/creatine ratio [0.049 (0.047-0.098) vs 0.097 (0.079-0.157); P < 0.05], higher mitochondrial respiratory control ratio, higher tissue oxygen saturation [77% (71-79) vs 66% (55-73); P < 0.05], and reduced mitochondrial cristae thickness in astrocytes [27.5 (22.5-38.4) nm vs 38.4 (31.0-47.5) nm; P < 0.01] compared with the TBI-saline group. Serum sodium and lactate concentrations and serum osmolality were higher in the TBI-HSL than in the TBI-saline group. CONCLUSIONS These findings indicate that the hypertonic sodium lactate solution can reverse brain oxygenation and metabolism dysfunction after traumatic brain injury through vasodilatory, mitochondrial, and anti-oedema effects.
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Affiliation(s)
- A Millet
- Institut National de la Santé et de la Recherche Médicale, Grenoble, France; Université Grenoble Alpes, Grenoble Institut des Neurosciences, Grenoble, France; Pôle Couple Enfant, Hôpital Michallon, CHU Grenoble Alpes, Grenoble, France
| | - A Cuisinier
- Institut National de la Santé et de la Recherche Médicale, Grenoble, France; Université Grenoble Alpes, Grenoble Institut des Neurosciences, Grenoble, France; Pôle Anesthésie Réanimation, Hôpital Michallon, CHU Grenoble Alpes, Grenoble, France
| | - P Bouzat
- Institut National de la Santé et de la Recherche Médicale, Grenoble, France; Université Grenoble Alpes, Grenoble Institut des Neurosciences, Grenoble, France; Pôle Anesthésie Réanimation, Hôpital Michallon, CHU Grenoble Alpes, Grenoble, France
| | - C Batandier
- Institut National de la Santé et de la Recherche Médicale, U1055, Laboratoire de Bioénergétique Fondamentale et Appliquée, Université Grenoble Alpes, Grenoble, France
| | - B Lemasson
- Institut National de la Santé et de la Recherche Médicale, Grenoble, France; Université Grenoble Alpes, Grenoble Institut des Neurosciences, Grenoble, France
| | - V Stupar
- Institut National de la Santé et de la Recherche Médicale, Grenoble, France; Université Grenoble Alpes, Grenoble Institut des Neurosciences, Grenoble, France
| | - K Pernet-Gallay
- Institut National de la Santé et de la Recherche Médicale, Grenoble, France; Université Grenoble Alpes, Grenoble Institut des Neurosciences, Grenoble, France
| | - T Crespy
- Institut National de la Santé et de la Recherche Médicale, Grenoble, France; Université Grenoble Alpes, Grenoble Institut des Neurosciences, Grenoble, France; Pôle Anesthésie Réanimation, Hôpital Michallon, CHU Grenoble Alpes, Grenoble, France
| | - E L Barbier
- Institut National de la Santé et de la Recherche Médicale, Grenoble, France; Université Grenoble Alpes, Grenoble Institut des Neurosciences, Grenoble, France
| | - J F Payen
- Institut National de la Santé et de la Recherche Médicale, Grenoble, France; Université Grenoble Alpes, Grenoble Institut des Neurosciences, Grenoble, France; Pôle Anesthésie Réanimation, Hôpital Michallon, CHU Grenoble Alpes, Grenoble, France.
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Quiclet C, Dubouchaud H, Berthon P, Sanchez H, Vial G, Siti F, Fontaine E, Batandier C, Couturier K. Maternal exercise modifies body composition and energy substrates handling in male offspring fed a high-fat/high-sucrose diet. J Physiol 2017; 595:7049-7062. [PMID: 28971475 DOI: 10.1113/jp274739] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 09/21/2017] [Indexed: 01/23/2023] Open
Abstract
KEY POINTS Maternal training during gestation enhances offspring body composition and energy substrates handling in early adulthood. Offspring nutrition also plays a role as some beneficial effects of maternal training during gestation disappear after consumption of a high-fat diet. ABSTRACT Maternal exercise during gestation has been reported to modify offspring metabolism and health. Whether these effects are exacerbated when offspring are receiving a high-fat diet remains unclear. Our purpose was to evaluate the effect of maternal exercise before and during gestation on the offspring fed a high-fat/high-sucrose diet (HF) by assessing its body composition, pancreatic function and energy substrates handling by two major glucose-utilizing tissues: liver and muscle. Fifteen-week-old nulliparous female Wistar rats exercised 4 weeks before as well as during gestation at a constant submaximal intensity (TR) or remained sedentary (CT). At weaning, pups from each group were fed either a standard diet (TRCD or CTCD) or a high-fat/high-sucrose diet (TRHF or CTHF) for 10 weeks. Offspring from TR dams gained less weight compared to those from CT dams. Selected fat depots were larger with the HF diet compared to control diet (CD) but significantly smaller in TRHF compared to CTHF. Surprisingly, the insulin secretion index was higher in islets from HF offspring compared to CD. TR offspring showed a higher muscle insulin sensitivity estimated by the ratio of phosphorylated protein kinase B to total protein kinase B compared with CT offspring (+48%, P < 0.05). With CD, permeabilized isolated muscle fibres from TR rats displayed a lower apparent affinity constant (Km ) for pyruvate and palmitoyl coenzyme A as substrates compared to the CT group (-46% and -58%, respectively, P < 0.05). These results suggest that maternal exercise has positive effects on young adult offspring body composition and on muscle carbohydrate and lipid metabolism depending on the nutritional status.
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Affiliation(s)
- Charline Quiclet
- Université Grenoble Alpes, Laboratory of Fundamental and Applied Bioenergetics (LBFA), Grenoble, France.,Inserm, U1055, Grenoble, France.,Université Grenoble Alpes, UFR Sciences et Techniques des Activités Physiques et Sportives (UFR STAPS), Structure Fédérative de Recherche Sport Exercice Motricité (SFR SEM), Grenoble, France
| | - Hervé Dubouchaud
- Université Grenoble Alpes, Laboratory of Fundamental and Applied Bioenergetics (LBFA), Grenoble, France.,Inserm, U1055, Grenoble, France.,Université Grenoble Alpes, UFR Sciences et Techniques des Activités Physiques et Sportives (UFR STAPS), Structure Fédérative de Recherche Sport Exercice Motricité (SFR SEM), Grenoble, France
| | - Phanélie Berthon
- Laboratoire Interdisciplinaire de Biologie de la Motricité, Université Savoie Mont Blanc, Le Bourget du Lac, France
| | - Hervé Sanchez
- French Armed Biomedical Research Institute, Brétigny-sur-Orge, France
| | - Guillaume Vial
- Université Grenoble Alpes, UFR Sciences et Techniques des Activités Physiques et Sportives (UFR STAPS), Structure Fédérative de Recherche Sport Exercice Motricité (SFR SEM), Grenoble, France.,Inserm, U1042, Grenoble, France
| | - Farida Siti
- Université Grenoble Alpes, Laboratory of Fundamental and Applied Bioenergetics (LBFA), Grenoble, France.,Inserm, U1055, Grenoble, France.,Faculty of Universitas Indonesia, Jakarta, Indonesia
| | - Eric Fontaine
- Université Grenoble Alpes, Laboratory of Fundamental and Applied Bioenergetics (LBFA), Grenoble, France.,Inserm, U1055, Grenoble, France.,Grenoble University Hospital, Grenoble, France
| | - Cécile Batandier
- Université Grenoble Alpes, Laboratory of Fundamental and Applied Bioenergetics (LBFA), Grenoble, France.,Inserm, U1055, Grenoble, France
| | - Karine Couturier
- Université Grenoble Alpes, Laboratory of Fundamental and Applied Bioenergetics (LBFA), Grenoble, France.,Inserm, U1055, Grenoble, France.,Université Grenoble Alpes, UFR Sciences et Techniques des Activités Physiques et Sportives (UFR STAPS), Structure Fédérative de Recherche Sport Exercice Motricité (SFR SEM), Grenoble, France
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7
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Quiclet C, Siti F, Batandier C, Vial G, Berthon P, Rieusset J, Dubouchaud H, Fontaine E, Couturier K. Effets de l’exercice maternel sur l’homéostasie du glucose et la fonction pancréatique de la descendance à l’âge de 3semaines et 7mois. NUTR CLIN METAB 2017. [DOI: 10.1016/j.nupar.2016.10.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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8
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Zein S, Sitti F, Osman M, Arnaud J, Batandier C, Gauchez AS, Rachidi S, Couturier K, Hininger-Favier I. Middle Iron-Enriched Fructose Diet on Gestational Diabetes Risk and on Oxidative Stress in Offspring Rats. Biol Trace Elem Res 2017; 175:405-413. [PMID: 27357939 DOI: 10.1007/s12011-016-0791-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Accepted: 06/21/2016] [Indexed: 12/21/2022]
Abstract
Gestational diabetes mellitus (GDM) is associated with increased insulin resistance and a heightened level of oxidative stress (OS). Additionally, high iron consumption could also increase insulin resistance and OS, which could aggravate GDM risk. The aim of this study is to evaluate a high fructose diet (F) as an alternative experimental model of GDM on rats. We also have evaluated the worst effect of a fructose iron-enriched diet (FI) on glucose tolerance and OS status during pregnancy. Anthropometric parameters, plasma glucose levels, insulin, and lipid profile were assessed after delivery in rats fed an F diet. The effects observed in mothers (hyperglycemia, and hyperlipidemia) and on pups (macrosomia and hypoglycemia) are similar to those observed in women with GDM. Therefore, the fructose diet could be proposed as an experimental model of GDM. In this way, we can compare the effect of an iron-enriched diet on the metabolic and redox status of mother rats and their pups. The mothers' glycemic was similar in the F and FI groups, whereas the glycemic was significantly different in the newborn. In rat pups born to mothers fed on an FI diet, the activities of the antioxidant enzyme glutathione peroxidase (GPx) and glutathione-S-transferase in livers and GPx in brains were altered and the gender analysis showed significant differences. Thus, alterations in the glycemic and redox status in newborns suggest that fetuses are more sensitive than their mothers to the effect of an iron-enriched diet in the case of GDM pregnancy. This study proposed a novel experimental model for GDM and provided insights on the effect of a moderate iron intake in adding to the risk of glucose disorder and oxidative damage on newborns.
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Affiliation(s)
- Salam Zein
- Clinical Pharmacy Department, Faculty of Pharmacy, Lebanese University, Hadath, Beirut, Lebanon
- Laboratoire de Bioénergétique Fondamentale et Appliquée_U1050, Université Grenoble Alpes, 38041, Grenoble, France
| | - Farida Sitti
- Laboratoire de Bioénergétique Fondamentale et Appliquée_U1050, Université Grenoble Alpes, 38041, Grenoble, France
- Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Mireille Osman
- Laboratoire de Bioénergétique Fondamentale et Appliquée_U1050, Université Grenoble Alpes, 38041, Grenoble, France
- INSERM U1055, 38041, Grenoble, France
| | - Josiane Arnaud
- Laboratoire de Bioénergétique Fondamentale et Appliquée_U1050, Université Grenoble Alpes, 38041, Grenoble, France
- Grenoble University Hospital, 38043, Grenoble, France
| | - Cécile Batandier
- Laboratoire de Bioénergétique Fondamentale et Appliquée_U1050, Université Grenoble Alpes, 38041, Grenoble, France
- INSERM U1055, 38041, Grenoble, France
| | | | - Samar Rachidi
- Clinical Pharmacy Department, Faculty of Pharmacy, Lebanese University, Hadath, Beirut, Lebanon
| | - Karine Couturier
- Laboratoire de Bioénergétique Fondamentale et Appliquée_U1050, Université Grenoble Alpes, 38041, Grenoble, France
- INSERM U1055, 38041, Grenoble, France
| | - Isabelle Hininger-Favier
- Laboratoire de Bioénergétique Fondamentale et Appliquée_U1050, Université Grenoble Alpes, 38041, Grenoble, France.
- INSERM U1055, 38041, Grenoble, France.
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9
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Ounnas F, Privé F, Lamarche F, Salen P, Favier-Hininger I, Marchand P, Le Bizec B, Venisseau A, Batandier C, Fontaine E, de Lorgeril M, Demeilliers C. A relevant exposure to a food matrix contaminated environmentally by polychlorinated biphenyls induces liver and brain disruption in rats. Chemosphere 2016; 161:80-88. [PMID: 27421104 DOI: 10.1016/j.chemosphere.2016.06.040] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Revised: 06/02/2016] [Accepted: 06/09/2016] [Indexed: 06/06/2023]
Abstract
Polychlorinated biphenyls (PCBs) are ubiquitous environmental contaminants present in dietary fats. Most studies evaluating PCB effects have been conducted with a single compound or a mixture of PCBs given as a single acute dose. The purpose of this study was to evaluate in vivo PCB toxicity in a realistic model of exposure: a low daily dose of PCBs (twice the tolerable daily intake (TDI)), chronically administered (8 weeks) to rats in contaminated goat milk. Liver and brain PCB toxicities were investigated by evaluating oxidative stress status and mitochondrial function. PCB toxicity in the liver was also estimated by transaminase enzymatic activity. This study shows that even at low doses, chronic PCB exposure resulted in a statistically significant reduction of mitochondrial function in liver and brain. In the liver, oxygen consumption in the condition of adenosine triphosphate (ATP) production (state 3) decreased by 22-29% (p < 0.01), according to the respiratory substrates. In the brain, respiratory chain complexes II and III were reduced by 24% and 39%, respectively (p < 0.005). The exposed rats presented higher lipid peroxidation status (+20%, p < 0.05) and transaminase activity (+30%, p < 0.05) in the blood. Thus, our study showed that exposure of rats to a daily realistic dose of PCBs (twice the TDI in a food complex mixture of environmental origin) resulted in multiple disruptions in the liver and brain.
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Affiliation(s)
- Fayçal Ounnas
- Univ. Grenoble Alpes, Laboratory of Fundamental and Applied Bioenergetics, Environmental and Systems Biology, Inserm, U1055, BP 53, 38041 Grenoble Cedex 9, France; TIMC-IMAG CNRS UMR 5525, Laboratoire PRETA, Cœur et Nutrition, Université Joseph Fourier, Domaine de la Merci, 38706 La Tronche Cedex, France.
| | - Florence Privé
- Univ. Grenoble Alpes, Laboratory of Fundamental and Applied Bioenergetics, Environmental and Systems Biology, Inserm, U1055, BP 53, 38041 Grenoble Cedex 9, France; TIMC-IMAG CNRS UMR 5525, Laboratoire PRETA, Cœur et Nutrition, Université Joseph Fourier, Domaine de la Merci, 38706 La Tronche Cedex, France.
| | - Fréderic Lamarche
- Univ. Grenoble Alpes, Laboratory of Fundamental and Applied Bioenergetics, Environmental and Systems Biology, Inserm, U1055, BP 53, 38041 Grenoble Cedex 9, France.
| | - Patricia Salen
- TIMC-IMAG CNRS UMR 5525, Laboratoire PRETA, Cœur et Nutrition, Université Joseph Fourier, Domaine de la Merci, 38706 La Tronche Cedex, France.
| | - Isabelle Favier-Hininger
- Univ. Grenoble Alpes, Laboratory of Fundamental and Applied Bioenergetics, Environmental and Systems Biology, Inserm, U1055, BP 53, 38041 Grenoble Cedex 9, France.
| | - Philippe Marchand
- Laboratoire d'Etude des Résidus et Contaminants dans les Aliments, LUNAM Université, Oniris, USC 1329, Route de Gachet, CS 50707, 44307 Nantes Cedex 3, France.
| | - Bruno Le Bizec
- Laboratoire d'Etude des Résidus et Contaminants dans les Aliments, LUNAM Université, Oniris, USC 1329, Route de Gachet, CS 50707, 44307 Nantes Cedex 3, France.
| | - Anais Venisseau
- Laboratoire d'Etude des Résidus et Contaminants dans les Aliments, LUNAM Université, Oniris, USC 1329, Route de Gachet, CS 50707, 44307 Nantes Cedex 3, France.
| | - Cécile Batandier
- Univ. Grenoble Alpes, Laboratory of Fundamental and Applied Bioenergetics, Environmental and Systems Biology, Inserm, U1055, BP 53, 38041 Grenoble Cedex 9, France.
| | - Eric Fontaine
- Univ. Grenoble Alpes, Laboratory of Fundamental and Applied Bioenergetics, Environmental and Systems Biology, Inserm, U1055, BP 53, 38041 Grenoble Cedex 9, France; Grenoble University Hospital, CS 10217, 38043 Grenoble Cedex 9, France.
| | - Michel de Lorgeril
- TIMC-IMAG CNRS UMR 5525, Laboratoire PRETA, Cœur et Nutrition, Université Joseph Fourier, Domaine de la Merci, 38706 La Tronche Cedex, France.
| | - Christine Demeilliers
- Univ. Grenoble Alpes, Laboratory of Fundamental and Applied Bioenergetics, Environmental and Systems Biology, Inserm, U1055, BP 53, 38041 Grenoble Cedex 9, France.
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Quiclet C, Siti F, Dubouchaud H, Sanchez H, Vial G, Berthon P, Fontaine E, Batandier C, Couturier K. SUN-P221: Effects of Maternal Exercise Before and During Gestation or During Lactation on Offspring Metabolic Health: Body Composition Pancreatic Function and Energy Substrates Management. Clin Nutr 2016. [DOI: 10.1016/s0261-5614(16)30564-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Quiclet C, Siti F, Dubouchaud H, Vial G, Berthon P, Fontaine E, Batandier C, Couturier K. Short-term and long-term effects of submaximal maternal exercise on offspring glucose homeostasis and pancreatic function. Am J Physiol Endocrinol Metab 2016; 311:E508-18. [PMID: 27382034 DOI: 10.1152/ajpendo.00126.2016] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Accepted: 07/01/2016] [Indexed: 12/22/2022]
Abstract
Only a few studies have explored the effects of maternal exercise during gestation on adult offspring metabolism. We set out to test whether maternal controlled submaximal exercise maintained troughout all gestational periods induces persistant metabolic changes in the offspring. We used a model of 15-wk-old nulliparous female Wistar rats that exercised (trained group) before and during gestation at a submaximal intensity or remained sedentary (control group). At weaning, male offspring from trained dams showed reduced basal glycemia (119.7 ± 2.4 vs. 130.5 ± 4.1 mg/dl, P < 0.05), pancreas relative weight (3.96 ± 0.18 vs. 4.54 ± 0.14 g/kg body wt, P < 0.05), and islet mean area (22,822 ± 4,036 vs. 44,669 ± 6,761 μm(2), P < 0.05) compared with pups from control dams. Additionally, they had better insulin secretory capacity when stimulated by 2.8 mM glucose + 20 mM arginine compared with offspring from control dams (+96%, P < 0.05). At 7 mo of age, offspring from trained mothers displayed altered glucose tolerance (AUC = 15,285 ± 527 vs. 11,898 ± 988 mg·dl(-1)·120 min, P < 0.05) and decreased muscle insulin sensitivity estimated by the phosphorylated PKB/total PKB ratio (-32%, P < 0.05) and tended to have a reduced islet insulin secretory capacity compared with rats from control dams. These results suggest that submaximal maternal exercise modifies short-term male offspring pancreatic function and appears to have rather negative long-term consequences on sedentary adult offspring glucose handling.
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Affiliation(s)
- Charline Quiclet
- Laboratory of Fundamental and Applied Bioenergetics, University Grenoble Alpes, Grenoble, France; Institut National de la Santé et de la Recherche Médicale (INSERM), U1055, Grenoble, France; Unité de Formation et de Recherche en Activités Physiques et Sportives, Structure Fédérative de Recherche Sport Exercice Motricité, University Grenoble Alpes, Grenoble, France;
| | - Farida Siti
- Laboratory of Fundamental and Applied Bioenergetics, University Grenoble Alpes, Grenoble, France; Institut National de la Santé et de la Recherche Médicale (INSERM), U1055, Grenoble, France; Faculty of Universitas Indonesia, Jakarta, Indonesia
| | - Hervé Dubouchaud
- Laboratory of Fundamental and Applied Bioenergetics, University Grenoble Alpes, Grenoble, France; Institut National de la Santé et de la Recherche Médicale (INSERM), U1055, Grenoble, France; Unité de Formation et de Recherche en Activités Physiques et Sportives, Structure Fédérative de Recherche Sport Exercice Motricité, University Grenoble Alpes, Grenoble, France
| | - Guillaume Vial
- INSERM, U1060,Faculté de Médecine Lyon-Sud, Oullins, France; Center for European Nutrition and Health, Centre Hospitalier Lyon-Sud, Pierre-Bénite, France
| | - Phanélie Berthon
- Laboratoire Interuniversitaire de Biologie de la Motricité, University Savoie Mont Blanc, Le Bourget du Lac, France
| | - Eric Fontaine
- Laboratory of Fundamental and Applied Bioenergetics, University Grenoble Alpes, Grenoble, France; Institut National de la Santé et de la Recherche Médicale (INSERM), U1055, Grenoble, France; Grenoble University Hospital, Grenoble, France; and
| | - Cécile Batandier
- Laboratory of Fundamental and Applied Bioenergetics, University Grenoble Alpes, Grenoble, France; Institut National de la Santé et de la Recherche Médicale (INSERM), U1055, Grenoble, France
| | - Karine Couturier
- Laboratory of Fundamental and Applied Bioenergetics, University Grenoble Alpes, Grenoble, France; Institut National de la Santé et de la Recherche Médicale (INSERM), U1055, Grenoble, France; Unité de Formation et de Recherche en Activités Physiques et Sportives, Structure Fédérative de Recherche Sport Exercice Motricité, University Grenoble Alpes, Grenoble, France
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Millet A, Bouzat P, Trouve-Buisson T, Batandier C, Pernet-Gallay K, Gaide-Chevronnay L, Barbier EL, Debillon T, Fontaine E, Payen JF. Erythropoietin and Its Derivates Modulate Mitochondrial Dysfunction after Diffuse Traumatic Brain Injury. J Neurotrauma 2016; 33:1625-33. [PMID: 26530102 DOI: 10.1089/neu.2015.4160] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
Inhibiting the opening of mitochondrial permeability transition pore (mPTP), thereby maintaining the mitochondrial membrane potential and calcium homeostasis, could reduce the induction of cell death. Although recombinant human erythropoietin (rhEpo) and carbamylated erythropoietin (Cepo) were shown to prevent apoptosis after traumatic brain injury (TBI), their impact on mPTP is yet unknown. Thirty minutes after diffuse TBI (impact-acceleration model), rats were intravenously administered a saline solution (TBI-saline), 5000 UI/kg rhEpo (TBI-rhEpo) or 50 μg/kg Cepo (TBI-Cepo). A fourth group received no TBI insult (sham-operated) (n = 11 rats per group). Post-traumatic brain edema was measured using magnetic resonance imaging. A first series of experiments was conducted 2 h after TBI (or equivalent) to investigate the mitochondrial function with the determination of thresholds for mPTP opening and ultrastructural mitochondrial changes. In addition, the intramitochondrial calcium content [Caim] was measured. In a second series of experiments, brain cell apoptosis was assessed at 24 h post-injury. TBI-rhEpo and TBI-Cepo groups had a reduced brain edema compared with TBI-saline. They had higher threshold for mPTP opening with succinate as substrate: 120 (120-150) (median, interquartiles) and 100 (100-120) versus 80 (60-90) nmol calcium/mg protein in TBI-saline, respectively (p < 0.05). Similar findings were shown with glutamate-malate as substrate. TBI-rhEpo and Cepo groups had less morphological mitochondrial disruption in astrocytes. The elevation in [Caim] after TBI was not changed by rhEpo and Cepo treatment. Finally, rhEpo and Cepo reduced caspase-3 expression at 24 h post-injury. These results indicate that rhEpo and Cepo could modulate mitochondrial dysfunction after TBI. The mechanisms involved are discussed.
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Affiliation(s)
- Anne Millet
- 1 INSERM , U1216, Grenoble, France .,2 Grenoble Institut des Neurosciences, Université Grenoble Alpes , Grenoble, France .,3 Département de Réanimation Pédiatrique et Néonatale, Hôpital Couple Enfant , Grenoble, France
| | - Pierre Bouzat
- 1 INSERM , U1216, Grenoble, France .,2 Grenoble Institut des Neurosciences, Université Grenoble Alpes , Grenoble, France .,4 Pôle d'Anesthésie Réanimation, CHU Grenoble Alpes , Grenoble, France
| | - Thibaut Trouve-Buisson
- 1 INSERM , U1216, Grenoble, France .,2 Grenoble Institut des Neurosciences, Université Grenoble Alpes , Grenoble, France .,4 Pôle d'Anesthésie Réanimation, CHU Grenoble Alpes , Grenoble, France
| | - Cécile Batandier
- 5 INSERM, U1055, Laboratoire de Biologie Fondamentale et Appliquée, Université Joseph Fourier , Grenoble, France
| | - Karin Pernet-Gallay
- 1 INSERM , U1216, Grenoble, France .,2 Grenoble Institut des Neurosciences, Université Grenoble Alpes , Grenoble, France
| | - Lucie Gaide-Chevronnay
- 1 INSERM , U1216, Grenoble, France .,2 Grenoble Institut des Neurosciences, Université Grenoble Alpes , Grenoble, France .,4 Pôle d'Anesthésie Réanimation, CHU Grenoble Alpes , Grenoble, France
| | | | - Thierry Debillon
- 3 Département de Réanimation Pédiatrique et Néonatale, Hôpital Couple Enfant , Grenoble, France
| | - Eric Fontaine
- 5 INSERM, U1055, Laboratoire de Biologie Fondamentale et Appliquée, Université Joseph Fourier , Grenoble, France .,6 Unité de Nutrition Parentérale, Pôle de médecin Aigue Spécialisée, CHU Grenoble Alpes , Grenoble, France
| | - Jean-François Payen
- 1 INSERM , U1216, Grenoble, France .,2 Grenoble Institut des Neurosciences, Université Grenoble Alpes , Grenoble, France .,4 Pôle d'Anesthésie Réanimation, CHU Grenoble Alpes , Grenoble, France
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Couturier K, Hininger I, Poulet L, Anderson RA, Roussel AM, Canini F, Batandier C. Cinnamon intake alleviates the combined effects of dietary-induced insulin resistance and acute stress on brain mitochondria. J Nutr Biochem 2016; 28:183-90. [DOI: 10.1016/j.jnutbio.2015.10.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 10/14/2015] [Accepted: 10/19/2015] [Indexed: 12/26/2022]
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Quiclet C, Sanchez H, Batandier C, Dubouchaud H, Berthon P, Fondraz E, Siti F, Vial G, Rieusset J, Fontaine E, Couturier K. SUN-PP031: Effect of Maternal Exercise During Gestation on High-Fat High-Sucrose Diet-Fed Offspring: Body Composition, Glucose Tolerance and Energy Substrates Management. Clin Nutr 2015. [DOI: 10.1016/s0261-5614(15)30182-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Quiclet C, Siti F, Batandier C, Vial G, Rieusset J, Dubouchaud H, Berthon P, Fontaine E, Couturier K. P114: Effets de l’exercice maternel sur l’homéostasie du glucose et la fonction pancréatique de la descendance à l’âge de 3 semaines et 7 mois. NUTR CLIN METAB 2014. [DOI: 10.1016/s0985-0562(14)70756-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Quiclet C, Farida S, Batandier C, Vial G, Rieusset J, Dubouchaud H, Fontaine E, Couturier K. PP004-SUN: Effect of Maternal Exercise on Offspring Glucose Homeostasis and Pancreatic Function. Clin Nutr 2014. [DOI: 10.1016/s0261-5614(14)50046-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Batandier C, Poulet L, Hininger I, Couturier K, Fontaine E, Roussel AM, Canini F. Acute stress delays brain mitochondrial permeability transition pore opening. J Neurochem 2014; 131:314-22. [PMID: 24989320 DOI: 10.1111/jnc.12811] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Revised: 05/28/2014] [Accepted: 06/28/2014] [Indexed: 12/15/2022]
Abstract
Since emotional stress elicits brain activation, mitochondria should be a key component of stressed brain response. However, few studies have focused on mitochondria functioning in these conditions. In this work, we aimed to determine the effects of an acute restraint stress on rat brain mitochondrial functions, with a focus on permeability transition pore (PTP) functioning. Rats were divided into two groups, submitted or not to an acute 30-min restraint stress (Stress, S-group, vs. Control, C-group). Brain was removed immediately after stress. Mitochondrial respiration and enzymatic activities (complex I, complex II, hexokinase) were measured. Changes in PTP opening were assessed by the Ca(2+) retention capacity. Cell signaling pathways relevant to the coupling between mitochondria and cell function (adenosine monophosphate-activated protein kinase, phosphatidylinositol 3-kinase, glycogen synthase kinase 3 beta, MAPK, and cGMP/NO) were measured. The effect of glucocorticoids was also assessed in vitro. Stress delayed (43%) the opening of PTP and resulted in a mild inhibition of complex I respiratory chain. This inhibition was associated with significant stress-induced changes in adenosine monophosphate-activated protein kinase signaling pathway without changes in brain cGMP level. In contrast, glucocorticoids did not modify PTP opening. These data suggest a rapid adaptive mechanism of brain mitochondria in stressed conditions, with a special focus on PTP regulation. In a rat model of acute restraint stress, we observed substantial changes in brain mitochondria functioning. Stress significantly (i) delays (43%) the opening of permeability transition pore (PTP) by the calcium (Ca(2+) ), its main inductor and (ii) results in an inhibition of complex I in electron transport chain associated with change in AMPK signaling pathway. These data suggest an adaptive mechanism of brain mitochondria in stressed condition, with a special focus on PTP regulation.
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Affiliation(s)
- Cécile Batandier
- Laboratoire de Bioénergétique Fondamentale et Appliquée, Université Joseph Fourier, Grenoble, France; U1055 - INSERM, Grenoble, France
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Daoust A, Saoudi Y, Brocard J, Collomb N, Batandier C, Bisbal M, Salomé M, Andrieux A, Bohic S, Barbier EL. Impact of manganese on primary hippocampal neurons from rodents. Hippocampus 2014; 24:598-610. [DOI: 10.1002/hipo.22252] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2013] [Revised: 01/17/2014] [Accepted: 01/24/2014] [Indexed: 12/19/2022]
Affiliation(s)
- Alexia Daoust
- Inserm; U836 Grenoble France
- Université Grenoble Alpes, Grenoble Institut des Neurosciences; Grenoble France
| | - Yasmina Saoudi
- Inserm; U836 Grenoble France
- Université Grenoble Alpes, Grenoble Institut des Neurosciences; Grenoble France
| | - Jacques Brocard
- Inserm; U836 Grenoble France
- Université Grenoble Alpes, Grenoble Institut des Neurosciences; Grenoble France
| | - Nora Collomb
- Inserm; U836 Grenoble France
- Université Grenoble Alpes, Grenoble Institut des Neurosciences; Grenoble France
| | - Cécile Batandier
- Laboratoire de Bioénergétique Fondamentale et Appliquée; Grenoble France
| | - Mariano Bisbal
- Inserm; U836 Grenoble France
- Université Grenoble Alpes, Grenoble Institut des Neurosciences; Grenoble France
| | - Murielle Salomé
- European Synchrotron Radiation Facility (ESRF); Grenoble France
| | - Annie Andrieux
- Inserm; U836 Grenoble France
- Université Grenoble Alpes, Grenoble Institut des Neurosciences; Grenoble France
| | - Sylvain Bohic
- Inserm; U836 Grenoble France
- Université Grenoble Alpes, Grenoble Institut des Neurosciences; Grenoble France
- European Synchrotron Radiation Facility (ESRF); Grenoble France
| | - Emmanuel L. Barbier
- Inserm; U836 Grenoble France
- Université Grenoble Alpes, Grenoble Institut des Neurosciences; Grenoble France
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Belliere J, Devun F, Cottet-Rousselle C, Batandier C, Leverve X, Fontaine E. Prerequisites for ubiquinone analogs to prevent mitochondrial permeability transition-induced cell death. J Bioenerg Biomembr 2012; 44:207-12. [PMID: 22246424 DOI: 10.1007/s10863-012-9406-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The permeability transition pore (PTP) is a mitochondrial inner membrane channel involved in cell death. The inhibition of PTP opening has been proved to be an effective strategy to prevent cell death induced by oxidative stress. Several ubiquinone analogs are known to powerfully inhibit PTP opening with an effect depending on the studied cell line. Here, we have studied the effects of ubiquinone 0 (Ub(0)), ubiquinone 5 (Ub(5)) and ubiquinone 10 (Ub(10)) on PTP regulation, H(2)O(2) production and cell viability in U937 cells. We found that Ub(0) induced both PTP opening and H(2)O(2) production. Ub(5) did not regulate PTP opening yet induced H(2)O(2) production. Ub(10) potently inhibited PTP opening yet induced H(2)O(2) production. Both Ub(0) and Ub(5) induced cell death, whereas Ub(10) was not toxic. Moreover, Ub(10) prevented tert-butyl hydroperoxide-induced PTP opening and subsequent cell death. We conclude that PTP-inhibitor ubiquinone analogs are able to prevent PTP opening-induced cell death only if they are not toxic per se, which is the case when they have no or low pro-oxidant activity.
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Belliere J, Devun F, Cottet-Rousselle C, Batandier C, Leverve X, Fontaine E. Erratum to: Prerequisites for ubiquinone analogs to prevent mitochondrial permeability transition-induced cell death. J Bioenerg Biomembr 2012. [DOI: 10.1007/s10863-012-9434-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Pierron D, Rocher C, Amati-Bonneau P, Reynier P, Martin-Négrier ML, Allouche S, Batandier C, Mousson de Camaret B, Godinot C, Rotig A, Feldmann D, Bellanne-Chantelot C, Arveiler B, Pennarun E, Rossignol R, Crouzet M, Murail P, Thoraval D, Letellier T. New evidence of a mitochondrial genetic background paradox: impact of the J haplogroup on the A3243G mutation. BMC Med Genet 2008; 9:41. [PMID: 18462486 PMCID: PMC2409300 DOI: 10.1186/1471-2350-9-41] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2007] [Accepted: 05/07/2008] [Indexed: 11/10/2022]
Abstract
BACKGROUND The A3243G mutation in the tRNALeu gene (UUR), is one of the most common pathogenic mitochondrial DNA (mtDNA) mutations in France, and is associated with highly variable and heterogeneous disease phenotypes. To define the relationships between the A3243G mutation and mtDNA backgrounds, we determined the haplogroup affiliation of 142 unrelated French patients - diagnosed as carriers of the A3243G mutation - by control-region sequencing and RFLP survey of their mtDNAs. RESULTS The analysis revealed 111 different haplotypes encompassing all European haplogroups, indicating that the 3243 site might be a mutational hot spot. However, contrary to previous findings, we observed a statistically significant underepresentation of the A3243G mutation on haplogroup J in patients (p = 0.01, OR = 0.26, C.I. 95%: 0.08-0.83), suggesting that might be due to a strong negative selection at the embryo or germ line stages. CONCLUSION Thus, our study supports the existence of mutational hotspot on mtDNA and a "haplogroup J paradox," a haplogroup that may increase the expression of mtDNA pathogenic mutations, but also be beneficial in certain environmental contexts.
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Affiliation(s)
- Denis Pierron
- 1Université Bordeaux 1, Laboratoire d'Anthropologie des Populations du Passé, UMR 5199 PACEA, 33400 Talence, France.
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Leverve X, Batandier C, Fontaine E. Choosing the right substrate. Novartis Found Symp 2007; 280:108-21; discussion 121-7, 160-4. [PMID: 17380791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Carbohydrate and fatty acids are major energetic substrates, although amino acid oxidation also permits ATP synthesis. Among several major metabolic differences between lipids and carbohydrate (activation, transport, effect of insulin, etc.), two are of particular importance when considering energy metabolism of critically ill patients: the yield of ATP synthesis and the response to uncoupling. (I) Oxidative phosphorylation yield is higher when NADH is the electron donor (three coupling sites: complex 1, 3 and 4) as compared to FADH2 (two coupling sites: complex 3 and 4). Since the ratio NADH/FADH2 is higher for glycolysis as compared to beta-oxidation, the stoichiometry of ATP synthesis to oxygen consumption is also higher. Lipid oxidation provides more ATP than carbohydrate, but it requires more oxygen per mole of ATP synthesized. (II) The ratio of NADH oxidation versus FADH, oxidation depends on the proton motive force, and lowering proton motive force by uncoupling favours FADH2 oxidation, i.e. lipids versus carbohydrate. In conclusion, lipid oxidation provides a high rate of ATP synthesis even during a mild uncoupling state, but at a high rate of oxygen consumption. If oxygen availability is limited, the major metabolic adaptation to increase the efficiency is represented by a switch from lipid oxidation to glucose oxidation.
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Affiliation(s)
- Xavier Leverve
- INSERM E-0221 Bioénergétique Fondamentale et Appliquée, Université Joseph Fourier, BP 53X, 38041 Grenoble, France
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Batandier C, Guigas B, Detaille D, El-Mir MY, Fontaine E, Rigoulet M, Leverve XM. The ROS production induced by a reverse-electron flux at respiratory-chain complex 1 is hampered by metformin. J Bioenerg Biomembr 2006; 38:33-42. [PMID: 16732470 DOI: 10.1007/s10863-006-9003-8] [Citation(s) in RCA: 218] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Mitochondrial reactive oxygen species (ROS) production was investigated in mitochondria extracted from liver of rats treated with or without metformin, a mild inhibitor of respiratory chain complex 1 used in type 2 diabetes. A high rate of ROS production, fully suppressed by rotenone, was evidenced in non-phosphorylating mitochondria in the presence of succinate as a single complex 2 substrate. This ROS production was substantially lowered by metformin pretreatment and by any decrease in membrane potential (Delta Phi(m)), redox potential (NADH/NAD), or phosphate potential, as induced by malonate, 2,4-dinitrophenol, or ATP synthesis, respectively. ROS production in the presence of glutamate-malate plus succinate was lower than in the presence of succinate alone, but higher than in the presence of glutamate-malate. Moreover, while rotenone both increased and decreased ROS production at complex 1 depending on forward (glutamate-malate) or reverse (succinate) electron flux, no ROS overproduction was evidenced in the forward direction with metformin. Therefore, we propose that reverse electron flux through complex 1 is an alternative pathway, which leads to a specific metformin-sensitive ROS production.
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Affiliation(s)
- Cécile Batandier
- INSERM E-0221 Bioénergétique Fondamentale et Appliquée, Universit Joseph Fourier, Grenoble, F-38000, France
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Garait B, Couturier K, Servais S, Letexier D, Perrin D, Batandier C, Rouanet JL, Sibille B, Rey B, Leverve X, Favier R. Fat intake reverses the beneficial effects of low caloric intake on skeletal muscle mitochondrial H(2)O(2) production. Free Radic Biol Med 2005; 39:1249-61. [PMID: 16214040 DOI: 10.1016/j.freeradbiomed.2005.06.026] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2005] [Revised: 06/16/2005] [Accepted: 06/21/2005] [Indexed: 12/01/2022]
Abstract
Food restriction is the most effective modulator of oxidative stress and it is believed that a reduction in caloric intake per se is responsible for the reduced generation of reactive oxygen species (ROS) by mitochondria. Hydrogen peroxide (H(2)O(2)) generation and oxygen consumption (O(2)) by skeletal muscle mitochondria were determined in a peculiar strain of rats (Lou/C) characterized by a self-low-caloric intake and a dietary preference for fat. These rats were fed either with a standard high-carbohydrate (HC) or a high-fat (HF) diet and the results were compared to those measured in Wistar rats fed a HC diet. H(2)O(2) production was significantly reduced in Lou/C rats fed a HC diet; this effect was not due to a lower O(2) consumption but rather to a decrease in rotenone-sensitive NADH-ubiquinone oxidoreductase activity and increased expression of uncoupling proteins 2 and 3. The reduced H(2)O(2) generation displayed by Lou/C rats was accompanied by a significant inhibition of permeability transition pore (PTP) opening. H(2)O(2) production was restored and PTP inhibition was relieved when Lou/C rats were allowed to eat a HF diet, suggesting that the reduced oxidative stress provided by low caloric intake is lost when fat proportion in the diet is increased.
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Affiliation(s)
- Blandine Garait
- Laboratoire de Bioénergétique Fondamentale et Appliquée, Equipe Mixte INSERM 221, Université Joseph Fourier, BP 53X - 2280 Rue de la Piscine, 38041 Grenoble Cedex 09, France
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Detaille D, Guigas B, Chauvin C, Batandier C, Fontaine E, Wiernsperger N, Leverve X. Metformin prevents high-glucose-induced endothelial cell death through a mitochondrial permeability transition-dependent process. Diabetes 2005; 54:2179-87. [PMID: 15983220 DOI: 10.2337/diabetes.54.7.2179] [Citation(s) in RCA: 192] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Hyperglycemia-induced oxidative stress is detrimental for endothelial cells, contributing to the vascular complications of diabetes. The mitochondrial permeability transition pore (PTP) is an oxidative stress-sensitive channel involved in cell death; therefore, we have examined its potential role in endothelial cells exposed to oxidative stress or high glucose level. Metformin, an antihyperglycemic agent used in type 2 diabetes, was also investigated because it inhibits PTP opening in transformed cell lines. Cyclosporin A (CsA), the reference PTP inhibitor, and a therapeutic dose of metformin (100 micromol/l) led to PTP inhibition in permeabilized human microvascular endothelial cells (HMEC-1). Furthermore, exposure of intact HMEC-1 or primary endothelial cells from either human umbilical vein or bovine aorta to the oxidizing agent tert-butylhydroperoxide or to 30 mmol/l glucose triggered PTP opening, cytochrome c decompartmentalization, and cell death. CsA or metformin prevented all of these effects. The antioxidant N-acetyl-l-cysteine also prevented hyperglycemia-induced apoptosis. We conclude that 1) elevated glucose concentration leads to an oxidative stress that favors PTP opening and subsequent cell death in several endothelial cell types and 2) metformin prevents this PTP opening-related cell death. We propose that metformin improves diabetes-associated vascular disease both by lowering blood glucose and by its effect on PTP regulation.
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Affiliation(s)
- Dominique Detaille
- Laboratoire de Bioénergétique Fondamentale et Appliquée, Institut National de la Santé et de la Recherche Médicale EMI-0221, Université Joseph Fourier, BP 53X, 38041 Grenoble Cedex, France.
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Guigas B, Detaille D, Chauvin C, Batandier C, De OLIVEIRA F, Fontaine E, Leverve X. Metformin inhibits mitochondrial permeability transition and cell death: a pharmacological in vitro study. Biochem J 2005; 382:877-84. [PMID: 15175014 PMCID: PMC1133963 DOI: 10.1042/bj20040885] [Citation(s) in RCA: 115] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2004] [Accepted: 06/03/2004] [Indexed: 01/04/2023]
Abstract
Metformin, a drug widely used in the treatment of Type II diabetes, has recently received attention owing to new findings regarding its mitochondrial and cellular effects. In the present study, the effects of metformin on respiration, complex 1 activity, mitochondrial permeability transition, cytochrome c release and cell death were investigated in cultured cells from a human carcinoma-derived cell line (KB cells). Metformin significantly decreased respiration both in intact cells and after permeabilization. This was due to a mild and specific inhibition of the respiratory chain complex 1. In addition, metformin prevented to a significant extent mitochondrial permeability transition both in permeabilized cells, as induced by calcium, and in intact cells, as induced by the glutathione-oxidizing agent t-butyl hydroperoxide. This effect was equivalent to that of cyclosporin A, the reference inhibitor. Finally, metformin impaired the t-butyl hydroperoxide-induced cell death, as judged by Trypan Blue exclusion, propidium iodide staining and cytochrome c release. We propose that metformin prevents the permeability transition-related commitment to cell death in relation to its mild inhibitory effect on complex 1, which is responsible for a decreased probability of mitochondrial permeability transition.
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Affiliation(s)
- Bruno Guigas
- INSERM E-0221 Bioénergétique Fondamentale et Appliquée, Université Joseph Fourier, BP 53X, 38041 Grenoble Cedex, Grenoble, France
| | - Dominique Detaille
- INSERM E-0221 Bioénergétique Fondamentale et Appliquée, Université Joseph Fourier, BP 53X, 38041 Grenoble Cedex, Grenoble, France
| | - Christiane Chauvin
- INSERM E-0221 Bioénergétique Fondamentale et Appliquée, Université Joseph Fourier, BP 53X, 38041 Grenoble Cedex, Grenoble, France
| | - Cécile Batandier
- INSERM E-0221 Bioénergétique Fondamentale et Appliquée, Université Joseph Fourier, BP 53X, 38041 Grenoble Cedex, Grenoble, France
| | - Frédéric De OLIVEIRA
- INSERM E-0221 Bioénergétique Fondamentale et Appliquée, Université Joseph Fourier, BP 53X, 38041 Grenoble Cedex, Grenoble, France
| | - Eric Fontaine
- INSERM E-0221 Bioénergétique Fondamentale et Appliquée, Université Joseph Fourier, BP 53X, 38041 Grenoble Cedex, Grenoble, France
| | - Xavier Leverve
- INSERM E-0221 Bioénergétique Fondamentale et Appliquée, Université Joseph Fourier, BP 53X, 38041 Grenoble Cedex, Grenoble, France
- To whom correspondence should be addressed (email )
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Batandier C, Leverve X, Fontaine E. Opening of the mitochondrial permeability transition pore induces reactive oxygen species production at the level of the respiratory chain complex I. J Biol Chem 2004; 279:17197-204. [PMID: 14963044 DOI: 10.1074/jbc.m310329200] [Citation(s) in RCA: 193] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
We have investigated the consequences of permeability transition pore (PTP) opening on the rate of production of reactive oxygen species in isolated rat liver mitochondria. We found that PTP opening fully inhibited H(2)O(2) production when mitochondria were energized both with complex I or II substrates. Because PTP opening led to mitochondrial pyridine nucleotide depletion, H(2)O(2) production was measured again in the presence of various amounts of NADH. PTP opening-induced H(2)O(2) production began when NADH concentration was higher than 50 microm and reached a maximum at over 300 microm. At such concentrations of NADH, the maximal H(2)O(2) production was 4-fold higher than that observed when mitochondria were permeabilized with the channel-forming antibiotic alamethicin, indicating that the PTP opening-induced H(2)O(2) production was not due to antioxidant depletion. Moreover, PTP opening decreased rotenone-sensitive NADH ubiquinone reductase activity, whereas it did not affect the NADH FeCN reductase activity. We conclude that PTP opening induces a specific conformational change of complex I that (i) dramatically increases H(2)O(2) production so long as electrons are provided to complex I, and (ii) inhibits the physiological pathway of electrons inside complex I. These data allowed the identification of a novel consequence of permeability transition that may partly account for the mechanism by which PTP opening induces cell death.
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Affiliation(s)
- Cécile Batandier
- INSERM E-0221, Bioénergétique Fondamentale et Appliquée, Université Joseph Fourier, F-38041 Grenoble Cedex 09, France
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Leverve XM, Guigas B, Detaille D, Batandier C, Koceir EA, Chauvin C, Fontaine E, Wiernsperger NF. Mitochondrial metabolism and type-2 diabetes: a specific target of metformin. Diabetes Metab 2003; 29:6S88-94. [PMID: 14502105 DOI: 10.1016/s1262-3636(03)72792-x] [Citation(s) in RCA: 92] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Several links relate mitochondrial metabolism and type 2 diabetes or chronic hyperglycaemia. Among them, ATP synthesis by oxidative phosphorylation and cellular energy metabolism (ATP/ADP ratio), redox status and reactive oxygen species (ROS) production, membrane potential and substrate transport across the mitochondrial membrane are involved at various steps of the very complex network of glucose metabolism. Recently, the following findings (1) mitochondrial ROS production is central in the signalling pathway of harmful effects of hyperglycaemia, (2) AMPK activation is a major regulator of both glucose and lipid metabolism connected with cellular energy status, (3) hyperglycaemia by inhibiting glucose-6-phosphate dehydrogenase (G6PDH) by a cAMP mechanism plays a crucial role in NADPH/NADP ratio and thus in the pro-oxidant/anti-oxidant cellular status, have deeply changed our view of diabetes and related complications. It has been reported that metformin has many different cellular effects according to the experimental models and/or conditions. However, recent important findings may explain its unique efficacy in the treatment of hyperglycaemia- or insulin-resistance related complications. Metformin is a mild inhibitor of respiratory chain complex 1; it activates AMPK in several models, apparently independently of changes in the AMP-to-ATP ratio; it activates G6PDH in a model of high-fat related insulin resistance; and it has antioxidant properties by a mechanism (s), which is (are) not completely elucidated as yet. Although it is clear that metformin has non-mitochondrial effects, since it affects erythrocyte metabolism, the mitochondrial effects of metformin are probably crucial in explaining the various properties of this drug.
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Affiliation(s)
- X M Leverve
- INSERM E-0221 Bioénergétique Fondamentale et Appliquée, Université Joseph-Fourier, Grenoble, France.
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Leverve XM, Batandier C, Fontaine E. How valid is the concept of antioxidants and cell injury? Nestle Nutr Workshop Ser Clin Perform Programme 2003; 7:67-81; discussion 81-5. [PMID: 12481695 DOI: 10.1159/000067511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Affiliation(s)
- Xavier M Leverve
- Département de Médecine Aiguë Spécialisée, Unité de Nutrition Parentérale, Hôpital Albert Michallon, et Laboratoire de Bioénergétique Fondamentale et Appliquée, Université J. Fourier, Grenoble, France
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Abstract
The generation of Reactive Oxygen Species (ROS) as by-products in mitochondria Electron Transport Chain (ETC) has long been admitted as the cost of aerobic energy metabolism with oxidative damages as consequence. The purpose of this methodological review is to present some of the most widespread methods of ROS generation and to underline the limitations as well as some problems, identified with some experiments as examples, in the interpretation of such results. There is now no doubt that besides their pejorative role, ROS are involved in a variety of cellular processes for the continuous adaptation of the cell to its environment. Because ROS metabolism is a complex area (low production, instability of species, efficient antioxidant defense system, several places of production...) bias, variances and limitations in ROS measurements must be recognized in order to avoid artefactual conclusions, and especially to improve our understanding of physiological and pathophysiological mechanisms of such phenomenon.
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Affiliation(s)
- Cécile Batandier
- Laboratoire de Bioénergétique Fondamentale et Appliquée INSERM E0221 et Université J. Fourier, BP 53X, 38041 Grenoble Cedex, France
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Batandier C, Picard A, Tessier N, Lunardi J. Identification of a novel T398A mutation in the ND5 subunit of the mitochondrial complex I and of three novel mtDNA polymorphisms in two patients presenting ocular symptoms. Hum Mutat 2000; 16:532. [PMID: 11102991 DOI: 10.1002/1098-1004(200012)16:6<532::aid-humu19>3.0.co;2-p] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- C Batandier
- Laboratoire de Biochimie de l'ADN, EA 2943-MENRT-CEA, CHU Grenoble, France
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Brambilla E, Jacrot M, Batandier C, Brichon PY, Morel F, Nagy-Mignotte H, Paramelle B, Brambilla C. Heterotransplantation of small cell lung carcinoma into nude mice. Stability of the phenotypic characters. Cancer 1989; 64:1238-47. [PMID: 2475240 DOI: 10.1002/1097-0142(19890915)64:6<1238::aid-cncr2820640613>3.0.co;2-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
In order to validate xenografted small cell lung carcinomas (SCLC) for biological studies, the authors established 12 lung neuroendocrine (NE) tumors (eight typical SCLC and four atypical NE tumors [ANE]) by heterotransplantation onto nude mice. Their characterization was performed using serial ultrastructural, enzymatic, and immunohistochemical methods on primary tumors and after xenografts. These were subclassified into epithelial (one), neuroendocrine (three), and multidifferenciated (eight) types. The phenotypic characters (cytokeratins, neurofilaments, neurone-specific enolase) and the proliferative rate (Ki 67 labelling) of original tumor were maintained until the last passage studied. Although further acquisition of subsets of cytokeratin or neurofilaments was observed in some cases, the authors could not detect any morphologic and/or biological spontaneous change comparable to those described in in vitro cell lines. In addition, ANE are not quite identical to variant subclasses described in vitro. The authors conclude that the stability of heterotransplanted SCLC is an advantage in further biological studies.
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Affiliation(s)
- E Brambilla
- Department of Pathology and Electron Microscopy, Grenoble, France
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Batandier C, Brambilla E, Nagy-Mignotte H, Laporte F, Jacrot M, Beriel H, Paramelle B, Brambilla C. Clinical value of an amplified electrophoretic determination of enolase isoenzymes in small cell lung carcinoma patients. Scand J Clin Lab Invest 1989; 49:33-42. [PMID: 2543057 DOI: 10.3109/00365518909089075] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Neurone specific enolase (NSE); alpha gamma and gamma gamma isoenzymes of the glycolytic enzyme enolase, is found in considerable quantity in serum of patients with small cell lung cancer (SCLC). The spectrophotometric measurement of serum enolase activity, plus the electrophoretic separation of isoenzymes (alpha alpha, alpha gamma and gamma gamma) using an amplification reaction constitute a simple method, the application of which has not yet been demonstrated. In patients, serum values of higher than 25 U/l of total enolase activity, with more than 10% NSE, were considered to be positive. Seventy patients diagnosed as SCLC were classified before treatment as having either limited (LD) or extensive (ED) disease, and after chemotherapy as being in complete (CR) or partial remission (PR), stable state (SS) or in relapse (R). The levels of enolase activity and NSE (M +/- SE) in these patients (enolase: 67 +/- 7 U/l, NSE 27 +/- 2%) were different from those in a control group of 19 patients with non-small cell lung cancer (enolase: 29 +/- 2 U/l, NSE: 7 +/- 1%) (p less than 0.001) at the time of diagnosis. Mean enolase and NSE levels in patients with SCLC were seen to differ significantly according to the clinical stage. The results of those patients with ED differed from those of patients with LD (p less than 0.001). The results of the group of patients that achieved remission differed from that of patients during relapse (p less than 0.0001). Serial measurements demonstrated a good correlation between enolase and NSE serum levels and the progression of the disease. The usefulness of this method in the early assessment of treatment was also demonstrated. The clinical usefulness of the dosage of NSE with that of two other tumour markers CKBB and mitochondrial CK was compared.
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Affiliation(s)
- C Batandier
- Department of Respiratory Disease, Centre Hospitalier Régional et Universitaire de Grenoble, Faculté de Médecine-Pharmacie de Grenoble, France
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Batandier C, Jacrot M, Brambilla E, Beriel H, Brambilla C, Paramelle B. Isoenzyme pattern of enolase in human lung tumor xenografts in nude mice. Anticancer Res 1987; 7:1193-6. [PMID: 2831792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A simple method is described which allows easy determination of neuroendocrine (NE) differentiation in human broncho-pulmonary tumor models grown in heterotransplanted nude mice. Enolase (EC 4.2.1.11) isoenzyme composition is studied using the electrophoretic method in xenograft tumor homogenates. The relatively large amount of alpha gamma and gamma gamma isoenzymes (neuron-specific enolase (NSE] is indicative of the neuroendocrine differentiation level of these tumors. The gamma gamma isoenzyme is present at a high level (M +/- SE: 10 +/- 2%) in all NE tumor models and absent in non NE tumor models. The alpha gamma isoenzyme is found in a significantly higher proportion in NE tumor models (30 +/- 2%) than in non NE tumor models (9 +/- 2%) (p less than 0.001). Moreover it is possible to discriminate between human and mice isoenzymes to estimate the proportion of mouse tissue hat is present in the xenograft.
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Affiliation(s)
- C Batandier
- Department of Lung Disease, C.H.R de Grenoble, France
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Abstract
Electrophoretic separation of enolase isoenzymes and the measurement of enolase activity were performed in 25 lung tumor extracts. In 13 neuroendocrine (NE) tumors (nine small cell lung carcinoma [SCLC], three atypical NE tumors, and one carcinoid tumor), the NE differentiation was assessed by ultrastructural determination of neurosecretory granule (NSG) density. Twelve non-NE lung tumors also were studied (three adenocarcinomas, four epidermoid, two composite, two large cell undifferentiated carcinomas, and one lymphoma). Four normal lung tissues and 1 human brain were used as controls. The gamma gamma isoenzyme was present at a high level (mean +/- SE, 12 +/- 3%) in all NE carcinomas and consistently absent in all non-NE tumors as well as in normal lung. The alpha gamma isoenzyme was found in significantly higher proportion in NE carcinomas (mean +/- SE, 29 +/- 2%) than in non-NE tumors (mean +/- SE, 8 +/- 1%) (P less than 0.0001), despite an equally high level of total enolase activity in both groups of tumor. The separation of alpha gamma and gamma gamma isoenzymes of enolase allows for the accurate diagnosis of NE tumors and NE components of atypical NE carcinomas, and the gamma gamma isoenzyme, in contrast to gamma chain detection by immunoassay, can be considered to be a specific marker in itself of NE differentiation in lung neoplasms.
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Batandier C, Brambilla E, Nagy H, Brambilla C. Isoenzyme pattern of enolase and creatine kinase in small cell lung cancer patients. Chest 1987; 92:189-90. [PMID: 3036426 DOI: 10.1378/chest.92.1.189a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
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Batandier C, Taillandier G, Boucherle A, Walrant P. Derivatives of 3-hydroxy acids: 4-oxo-1,3-dioxanes and 2-oxetanones. Pharmazie 1986; 41:632-4. [PMID: 3797452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Original 4-oxo-1,3-dioxanes and 2-oxetanones have been prepared from 3-hydroxy acids. Some pharmacological data and results from agricultural screenings are given.
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