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Dubois M, Azorin JM, Fakra E, Adida M, Belzeaux R. Endophénotypes émotionnels et troubles bipolaires. Encephale 2012; 38 Suppl 3:S85-92. [DOI: 10.1016/s0013-7006(12)70084-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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77
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Fakra E, Dubois M, Adida M, Corréard N, Kaladjian A, Mazzola P, Belzeaux R, Cermolacce M, Azorin JM. Les endophénotypes émotionnels dans les troubles bipolaires et la schizophrénie. Encephale 2012; 38 Suppl 3:S93-7. [DOI: 10.1016/s0013-7006(12)70085-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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78
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Puntous M, Pujol S, Roger I, Dubois M, Fratti C, Sauvage A, Signac É, Moisset V, Fialon P. Transfusion et perfusion simultanée de médicaments : état des lieux des pratiques et perspectives. Transfus Clin Biol 2012. [DOI: 10.1016/j.tracli.2012.08.099] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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79
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Sénéchal M, MacHaalany J, Dubois-Sénéchal I, Parenteau J, Bernier M, Costerousse O, Bertrand O, O'Connor K, Dubois M, Voisine P. 773 Preoperative Echocardiographic Predictors of Left Ventricular Remodeling After Surgical Correction of Mitral Regurgitation Caused by Leaflet Prolapse. Can J Cardiol 2012. [DOI: 10.1016/j.cjca.2012.07.696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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80
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Davies S, Christopikou D, Tsorva E, Karagianni A, Handyside AH, Mastrominas M, Alfarawati S, Poli M, Wells D, Fragouli E, Fragouli E, Alfarawati S, Konstantinidis M, Jaroudi S, Wells D, Van den Abbeel E, Balaban B, Ziebe S, Lundin K, Klein BM, Helmgaard L, Arce JC, Yokota Y, Yokota M, Yokota H, Sato S, Nakagawa M, Sato M, Anazawa I, Araki Y, Ledee N, Gridelet V, Ravet S, Jouan C, Gaspard O, Wenders F, Thonon F, Hincourt N, Dubois M, Foidart JM, Frankenne F, Munaut C, Perrier d'hauterive S, van Loendersloot LL, Van Wely M, van der Veen F, Bossuyt PMM, Repping S. SESSION 59: EMBRYOLOGY - DEVELOPMENT AND QUALITY. Hum Reprod 2012. [DOI: 10.1093/humrep/27.s2.58] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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81
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Brousse G, Arnaud B, Vorspan F, Richard D, Dissard A, Dubois M, Pic D, Geneste J, Xavier L, Authier N, Sapin V, Llorca PM, De Chazeron I, Minet-Quinard R, Schmidt J. Alteration of glutamate/GABA balance during acute alcohol withdrawal in emergency department: a prospective analysis. Alcohol Alcohol 2012; 47:501-8. [PMID: 22791370 DOI: 10.1093/alcalc/ags078] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
AIMS Animal studies suggest that in alcohol withdrawal the balance of neurotransmitters gamma aminobutyric acid (GABA) and glutamate is altered. To test this in humans, we aimed to measure plasma levels of glutamate, GABA and glutamate/GABA ratio in alcoholic patients presenting with complicated AWS with the same values in non-alcohol abuser/dependent controls and to determine prognostic factors for severe withdrawal. METHODS 88 patients admitted to the emergency room for acute alcohol intoxication (DSM-IV) were prospectively included. Measurements of GABA and glutamate were performed on admission (Time 1, T1) and after 12 ± 2 h (T2). The experimental group (EG) was composed of 23 patients who presented at T2 with a severe AWS. The control group (CG) consisted of healthy subjects paired with the EG (gender and age). Logistic regression was performed in order to compare associated clinical and biological variables that could predict severe withdrawal. RESULTS The concentration of GABA in the EG at T1 was significantly lower than that in the CG. The concentration of glutamate in the EG at T1 was significantly higher than that in the CG. The glutamate/GABA ratio in the EG at T1 was significantly higher than the ratio in the CG. With a multivariate logistic regression model, glutamate level at admission remained the only criterion identified as a predictor of AWS at 12 h. CONCLUSION Decreased synthesis of GABA and increased synthesis of glutamate might be related to withdrawal symptoms experienced on brutal cessation of chronic alcohol intake.
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Bélénotti P, Serratrice J, Benyamine A, Dubois M, Sevy A, Ene N, Swiader L, Attarian S, Pouget J, Weiller P. Syndrome de l’Homme Raide : y penser, et y croire ! À propos de trois observations. Rev Med Interne 2012. [DOI: 10.1016/j.revmed.2012.03.319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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83
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Melenotte C, Bélénotti P, Tessonier L, Michel J, Chetaille B, Jolibert M, Dubois M, Dessi P, Serratrice J, Weiller P. TEP Leopard, Rosai Dorfman dans sa forme floride. Rev Med Interne 2012. [DOI: 10.1016/j.revmed.2012.03.350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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84
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Merviel C, Mansuy JM, Dubois M, Izopet J. Mise au point d’une technique multiplex de dépistage génomique HEV–HAV. ACTA ACUST UNITED AC 2012; 60:95-105. [DOI: 10.1016/j.patbio.2010.04.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2010] [Accepted: 04/13/2010] [Indexed: 01/26/2023]
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85
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Lehérissier P, Bajeat O, Barué C, Canet C, Dubois M, Dupuis M, Flambard JL, Frigot R, Jardin P, Leboucher C, Lemagnen F, Maunoury L, Osmond B, Pacquet JY, Pichard A, Thuillier T, Peaucelle C. Status of the ion sources developments for the Spiral2 project at GANIL. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2012; 83:02A915. [PMID: 22380256 DOI: 10.1063/1.3678677] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The SPIRAL 2 facility is now under construction and will deliver either stable or radioactive ion beams. First tests of nickel beam production have been performed at GANIL with a new version of the large capacity oven, and a calcium beam has been produced on the heavy ion low energy beam transport line of SPIRAL 2, installed at LPSC Grenoble. For the production of radioactive beams, several target∕ion-source systems (TISSs) are under development at GANIL as the 2.45 GHz electron cyclotron resonance ion source, the surface ionization source, and the oven prototype for heating the uranium carbide target up to 2000 °C. The existing test bench has been upgraded for these developments and a new one, dedicated for the validation of the TISS before mounting in the production module, is under design. Results and current status of these activities are presented.
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86
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Bock A, Dubois M, Bonnet P, Hamwi A, Avignant D, Moch L, Morel B. Investigation of the purity of antimony pentafluoride using 19F NMR. J Fluor Chem 2012. [DOI: 10.1016/j.jfluchem.2011.05.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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87
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Maunoury L, Pacquet JY, Baret P, Donzel X, Dubois M, Gaubert G, Lehérissier P, Leroy R, Michel M, Villarit ACC. Multigan®: first experimental results. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2012; 83:02A338. [PMID: 22380185 DOI: 10.1063/1.3672468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A new design of a multicharged ion source based on the MONO1000 ECRIS has been presented at the last ECR ion source (ECRIS) Workshop 2010. [L. Maunoury et al., in Proceedings of the XIXth International Workshop on ECR Ion Sources, Grenoble, France, 23-26 August 2010] This source has not only two opening at both ends but also a large space in the middle of the source enabling a direct contact with the ECR plasma. The source has been assembled mechanically and put on a test bench at the Pantechnik company. The primary tests have shown that the plasma ignition occurred at low pressure (10(-6) mbar) and low RF power (10 W). The first experimental results (<Q> = 1.30 for Ar and 1.85 for Xe) demonstrated the potential of this ion source in production of multicharged ion beams.
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Jardin P, Bajeat O, Couratin C, Delahaye P, Dubois M, Feierstein C, Pellemoine F, Lecomte P, Lehérissier P, Maunoury L, Saint-Laurent MG, Traykov E. Status of the SPIRAL I upgrade at GANIL. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2012; 83:02A911. [PMID: 22380252 DOI: 10.1063/1.3672435] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The upgrade of the "Système de Production d'Ions Radioactifs en Ligne" phase I (SPIRAL I) installed at the "Grand Accélérateur National d'Ions Lourds" (GANIL) situated at Caen, France, is in progress and should be ready by 2014. In parallel, the first part of SPIRAL II facility is currently under construction. The global status of the upgrade is presented: goal, radioactive ion production systems, modification of the production cave and impact of the current safety re-evaluation of GANIL.
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89
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Dubois M, Guérin K, Zhang W, Ahmad Y, Hamwi A, Fawal Z, Kharbache H, Masin F. Tuning the discharge potential of fluorinated carbon used as electrode in primary lithium battery. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2011.11.015] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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90
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Chamssedine F, Guérin K, Dubois M, Disa E, Petit E, Fawal ZE, Hamwi A. Fluorination of single walled carbon nanotubes at low temperature: Towards the reversible fluorine storage into carbon nanotubes. J Fluor Chem 2011. [DOI: 10.1016/j.jfluchem.2011.06.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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91
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Dubois M, Poeppel D, Pelli DG. Text and speech summate perfectly, despite inefficient feature binding. J Vis 2011. [DOI: 10.1167/11.11.777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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92
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Tillman KA, Dubois M, Schnebelen W, Pelli DG. Binding of text and speech by children. J Vis 2011. [DOI: 10.1167/11.11.855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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93
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Tcherkassof A, Mandran N, Dubois M, Bègue L. Les effets de l’ingestion aiguë d’alcool sur le jugement d’expressions faciales émotionnelles spontanées et dynamiques. PSYCHOLOGIE FRANCAISE 2011. [DOI: 10.1016/j.psfr.2011.06.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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94
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Dubois M, Lejoncour V, Lapinte N, Roy V, Tonon M, Gandolfo P, Joly F, Hilber P, Castel H. 1167 POSTER Comparison of the Impact of the Targeted Therapy Everolimus (Afinitor®) and the Chemotherapy 5-FU on Cognitive Functions and Cerebral Plasticity in an Animal Model. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)70810-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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95
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Dubois M, Lapinte N, Le Joncour V, Roy V, Tonon M, Gandolfo P, Joly F, Hilber P, Castel H. Evaluation of the targeted therapy everolimus on cognitive functions and cerebral plasticity in an animal model. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e13589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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96
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Roger B, Papin J, Vacher P, Raoux M, Mulot A, Dubois M, Kerr-Conte J, Voy BH, Pattou F, Charpentier G, Jonas JC, Moustaïd-Moussa N, Lang J. Adenylyl cyclase 8 is central to glucagon-like peptide 1 signalling and effects of chronically elevated glucose in rat and human pancreatic beta cells. Diabetologia 2011; 54:390-402. [PMID: 21046358 DOI: 10.1007/s00125-010-1955-x] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2010] [Accepted: 09/08/2010] [Indexed: 01/19/2023]
Abstract
AIMS/HYPOTHESIS Glucose and incretins regulate beta cell function, gene expression and insulin exocytosis via calcium and cAMP. Prolonged exposure to elevated glucose (also termed glucotoxicity) disturbs calcium homeostasis, but little is known about cAMP signalling. We therefore investigated long-term effects of glucose on this pathway with special regard to the incretin glucagon-like peptide 1 (GLP-1). METHODS We exposed INS-1E cells and rat or human islets to different levels of glucose for 3 days and determined functional responses in terms of second messengers (cAMP, Ca(2+)), transcription profiles, activation of cAMP-responsive element (CRE) and secretion by measuring membrane capacitance. Moreover, we modulated directly the abundance of a calcium-sensitive adenylyl cyclase (ADCY8) and GLP-1 receptor (GLP1R). RESULTS GLP-1- or forskolin-mediated increases in cytosolic calcium, cAMP-levels or insulin secretion were largely reduced in INS-1E cells cultured at elevated glucose (>5.5 mmol/l). Statistical analysis of transcription profiles identified cAMP pathways as major targets regulated by glucose. Quantitative PCR confirmed these findings and unravelled marked downregulation of the calcium-sensitive adenylyl cyclase ADCY8 also in rat and in human islets. Re-expression of ADCY8, but not of the GLP1R, recovered GLP-1 signalling in glucotoxicity in INS-1E cells and in rat islets. Moreover, knockdown of this adenylyl cyclase showed that GLP-1-induced cAMP generation, calcium signalling, activation of the downstream target CRE and direct amplification of exocytosis by cAMP-raising agents (evaluated by capacitance measurement) proceeds via ADCY8. CONCLUSIONS/INTERPRETATION cAMP-mediated pathways are modelled by glucose, and downregulation of the calcium-sensitive ADCY8 plays a central role herein, including signalling via the GLP1R.
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Castillo C, Norcini M, Baquero-Buitrago J, Levacic D, Medina R, Montoya-Gacharna JV, Blanck TJJ, Dubois M, Recio-Pinto E. The N-methyl-D-aspartate-evoked cytoplasmic calcium increase in adult rat dorsal root ganglion neuronal somata was potentiated by substance P pretreatment in a protein kinase C-dependent manner. Neuroscience 2011; 177:308-20. [PMID: 21215796 DOI: 10.1016/j.neuroscience.2010.12.040] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2010] [Revised: 12/16/2010] [Accepted: 12/21/2010] [Indexed: 12/27/2022]
Abstract
The involvement of substance P (SP) in neuronal sensitization through the activation of the neurokinin-1-receptor (NK1r) in postsynaptic dorsal horn neurons has been well established. In contrast, the role of SP and NK1r in primary sensory dorsal root ganglion (DRG) neurons, in particular in the soma, is not well understood. In this study, we evaluated whether SP modulated the NMDA-evoked transient increase in cytoplasmic Ca2+ ([Ca2+]cyt) in the soma of dissociated adult DRG neurons. Cultures were treated with nerve growth factor (NGF), prostaglandin E2 (PGE2) or both NGF+PGE2. Treatment with NGF+PGE2 increased the percentage of N-methyl-D-aspartate (NMDA) responsive neurons. There was no correlation between the percentage of NMDA responsive neurons and the level of expression of the NR1 and NR2B subunits of the NMDA receptor or of the NK1r. Pretreatment with SP did not alter the percentage of NMDA responsive neurons; while it potentiated the NMDA-evoked [Ca2+]cyt transient by increasing its magnitude and by prolonging the period during which small- and some medium-sized neurons remained NMDA responsive. The SP-mediated potentiation was blocked by the SP-antagonist ([D-Pro4, D-Trp7,9]-SP (4-11)) and by the protein kinase C (PKC) blocker bisindolylmaleimide I (BIM); and correlated with the phosphorylation of PKCε. The Nk1r agonist [Sar9, Met(O2)11]-SP (SarMet-SP) also potentiated the NMDA-evoked [Ca2+]cyt transient. Exposure to SP or SarMet-SP produced a rapid increase in the labeling of phosphorylated-PKCε. In none of the conditions we detected phosphorylation of the NR2B subunit at Ser-1303. Phosphorylation of the NR2B subunit at Tyr1472 was enhanced to a similar extent in cells exposed to NMDA, SP or NMDA+SP, and that enhancement was blocked by BIM. Our findings suggest that NGF and PGE2 may contribute to the injury-evoked sensitization of DRG neurons in part by enhancing their NMDA-evoked [Ca2+]cyt transient in all sized DRG neurons; and that SP may further contribute to the DRG sensitization by enhancing and prolonging the NMDA-evoked increase in [Ca2+]cyt in small- and medium-sized DRG neurons.
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Gaudy-Marqueste C, Dubois M, Richard MA, Bonnelye G, Grob JJ. Cognitive training with photographs as a new concept in an education campaign for self-detection of melanoma: a pilot study in the community. J Eur Acad Dermatol Venereol 2010; 25:1099-103. [DOI: 10.1111/j.1468-3083.2010.03940.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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99
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Fialon P, Pujol S, Puntous M, Roger I, Moisset V, Fratti C, Signac E, Joly L, Dubois M, Petit H, Marachet AL, Jeanne M. Discordances de groupes sanguins et anomalies d’identification des patients : quelle stratégie adopter dans les établissements ? Transfus Clin Biol 2010. [DOI: 10.1016/j.tracli.2010.09.129] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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100
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Puntous M, Dubois M, Moisset V, Brugeat T, Fialon P. Mise en conformité des dépôts de sang dans un établissement « gros transfuseur » : problématique et solutions. Transfus Clin Biol 2010. [DOI: 10.1016/j.tracli.2010.09.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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