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Spano L, Marie-Claire C, Godin O, Lebras A, Courtin C, Laplanche JL, Leboyer M, Aouizerate B, Lefrere A, Belzeaux R, Courtet P, Olié E, Dubertret C, Schwan R, Aubin V, Roux P, Polosan M, Samalin L, Haffen E, Bellivier F, Etain B. Decreased telomere length in a subgroup of young individuals with bipolar disorders: replication in the FACE-BD cohort and association with the shelterin component POT1. Transl Psychiatry 2024; 14:131. [PMID: 38429270 PMCID: PMC10907586 DOI: 10.1038/s41398-024-02824-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 02/08/2024] [Accepted: 02/13/2024] [Indexed: 03/03/2024] Open
Abstract
Bipolar disorder (BD) has been associated with premature cellular aging with shortened telomere length (TL) as compared to the general population. We recently identified a subgroup of young individuals with prematurely shortened TL. The aims of the present study were to replicate this observation in a larger sample and analyze the expression levels of genes associated with age or TL in a subsample of these individuals. TL was measured on peripheral blood DNA using quantitative polymerase chain reaction in a sample of 542 individuals with BD and clustering analyses were performed. Gene expression level of 29 genes, associated with aging or with telomere maintenance, was analyzed in RNA samples from a subsample of 129 individuals. Clustering analyses identified a group of young individuals (mean age 29.64 years), with shorter TL. None of the tested clinical variables were significantly associated with this subgroup. Gene expression level analyses showed significant downregulation of MYC, POT1, and CD27 in the prematurely aged young individuals compared to the young individuals with longer TL. After adjustment only POT1 remained significantly differentially expressed between the two groups of young individuals. This study confirms the existence of a subgroup of young individuals with BD with shortened TL. The observed decrease of POT1 expression level suggests a newly described cellular mechanism in individuals with BD, that may contribute to telomere shortening.
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Affiliation(s)
- Luana Spano
- Université Paris Cité, INSERM UMR-S 1144, Optimisation Thérapeutique en Neuropsychopharmacologie OTeN, Paris, France
| | - Cynthia Marie-Claire
- Université Paris Cité, INSERM UMR-S 1144, Optimisation Thérapeutique en Neuropsychopharmacologie OTeN, Paris, France.
| | - Ophélia Godin
- Fondation FondaMental, Créteil, France
- Université Paris Est Créteil, INSERM U955, IMRB, Translational NeuroPsychiatry Laboratory, Créteil, France
| | - Apolline Lebras
- Université Paris Cité, INSERM UMR-S 1144, Optimisation Thérapeutique en Neuropsychopharmacologie OTeN, Paris, France
| | - Cindie Courtin
- Université Paris Cité, INSERM UMR-S 1144, Optimisation Thérapeutique en Neuropsychopharmacologie OTeN, Paris, France
| | - Jean-Louis Laplanche
- Université Paris Cité, INSERM UMR-S 1144, Optimisation Thérapeutique en Neuropsychopharmacologie OTeN, Paris, France
- Département de Biochimie et Biologie Moléculaire, DMU BioGeM, Hôpitaux Lariboisière-Fernand Widal, GHU APHP.Nord - Université de Paris, Paris, France
| | - Marion Leboyer
- Fondation FondaMental, Créteil, France
- Université Paris Est Créteil, INSERM U955, IMRB, Translational NeuroPsychiatry Laboratory, Créteil, France
- AP-HP, Hôpitaux Universitaires Henri Mondor, Département Médico-Universitaire de Psychiatrie et d'Addictologie (DMUIMPACT), Fédération Hospitalo-Universitaire de Médecine de Précision en Psychiatrie (FHU ADAPT), Créteil, France
| | - Bruno Aouizerate
- Fondation FondaMental, Créteil, France
- Centre Hospitalier Charles Perrens, Laboratoire NutriNeuro (UMR INRA 1286), Université de Bordeaux, Bordeaux, France
| | - Antoine Lefrere
- Fondation FondaMental, Créteil, France
- Pôle de Psychiatrie, Assistance Publique Hôpitaux de Marseille, Marseille, France
| | - Raoul Belzeaux
- Fondation FondaMental, Créteil, France
- INT-UMR7289, CNRS Aix-Marseille Université, Marseille, France
- Université Montpellier, Montpellier, France
| | - Philippe Courtet
- Fondation FondaMental, Créteil, France
- Department of Emergency Psychiatry and Acute Care, CHU Montpellier, IGF, Univ. Montpellier, CNRS, INSERM, Montpellier, France
| | - Emilie Olié
- Fondation FondaMental, Créteil, France
- Department of Emergency Psychiatry and Acute Care, CHU Montpellier, IGF, Univ. Montpellier, CNRS, INSERM, Montpellier, France
| | - Caroline Dubertret
- Fondation FondaMental, Créteil, France
- AP-HP, Groupe Hospitalo-Universitaire AP-HP Nord, DMU ESPRIT, Service de Psychiatrie et Addictologie, Hôpital Louis Mourier, Colombes, France
- Université de Paris, Inserm UMR1266, Sorbonne Paris Cité, Faculté de Médecine, Paris, France
| | - Raymund Schwan
- Fondation FondaMental, Créteil, France
- Université de Lorraine, Centre Psychothérapique de Nancy, Inserm U1254, Nancy, France
| | - Valérie Aubin
- Fondation FondaMental, Créteil, France
- Pôle de Psychiatrie, Centre Hospitalier Princesse Grace, Monaco, Monaco
| | - Paul Roux
- Fondation FondaMental, Créteil, France
- Centre Hospitalier de Versailles, Service Universitaire de Psychiatrie d'Adulte et d'Addictologie, Le Chesnay, France
- Equipe DisAP-PsyDev, CESP, Université Versailles Saint- Quentin-en-Yvelines - Paris-Saclay, Inserm, Villejuif, France
| | - Mircea Polosan
- Fondation FondaMental, Créteil, France
- Université Grenoble Alpes, Inserm, U1216, CHU Grenoble Alpes, Grenoble Institut Neurosciences, Grenoble, France
| | - Ludovic Samalin
- Fondation FondaMental, Créteil, France
- Centre Hospitalier et Universitaire, Département de Psychiatrie, Université Clermont Auvergne, CNRS, Clermont Auvergne INP, Institut Pascal (UMR 6602), Clermont-Ferrand, France
| | - Emmanuel Haffen
- Fondation FondaMental, Créteil, France
- Service de Psychiatrie de l'Adultre, CIC-1431 INSERM, CHU de Besançon, Laboratoire de Neurosciences, UFC, UBFC, Besançon, France
| | - Frank Bellivier
- Université Paris Cité, INSERM UMR-S 1144, Optimisation Thérapeutique en Neuropsychopharmacologie OTeN, Paris, France
- Fondation FondaMental, Créteil, France
- AP-HP, Groupe Hospitalo-Universitaire AP-HP Nord, DMU Neurosciences, Hôpital Fernand Widal, Département de Psychiatrie et de Médecine Addictologique, Paris, France
| | - Bruno Etain
- Université Paris Cité, INSERM UMR-S 1144, Optimisation Thérapeutique en Neuropsychopharmacologie OTeN, Paris, France
- Fondation FondaMental, Créteil, France
- AP-HP, Groupe Hospitalo-Universitaire AP-HP Nord, DMU Neurosciences, Hôpital Fernand Widal, Département de Psychiatrie et de Médecine Addictologique, Paris, France
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Urvois T, Perrier C, Roques A, Sauné L, Courtin C, Kajimura H, Hulcr J, Cognato AI, Auger-Rozenberg MA, Kerdelhué C. The worldwide invasion history of a pest ambrosia beetle inferred using population genomics. Mol Ecol 2023. [PMID: 37211644 DOI: 10.1111/mec.16993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 04/26/2023] [Accepted: 05/05/2023] [Indexed: 05/23/2023]
Abstract
Xylosandrus crassiusculus, a fungus-farming wood borer native to Southeastern Asia, is the most rapidly spreading invasive ambrosia species worldwide. Previous studies focusing on its genetic structure suggested the existence of cryptic genetic variation in this species. Yet, these studies used different genetic markers, focused on different geographical areas and did not include Europe. Our first goal was to determine the worldwide genetic structure of this species based on both mitochondrial and genomic markers. Our second goal was to study X. crassiusculus' invasion history on a global level and identify the origins of the invasion in Europe. We used a COI and RAD sequencing design to characterize 188 and 206 specimens worldwide, building the most comprehensive genetic data set for any ambrosia beetle to date. The results were largely consistent between markers. Two differentiated genetic clusters were invasive, albeit in different regions of the world. The markers were inconsistent only for a few specimens found exclusively in Japan. Mainland USA could have acted as a source for further expansion to Canada and Argentina through stepping stone expansion and bridgehead events. We showed that Europe was only colonized by Cluster II through a complex invasion history including several arrivals from multiple origins in the native area, and possibly including bridgehead from the United States. Our results also suggested that Spain was colonized directly from Italy through intracontinental dispersion. It is unclear whether the mutually exclusive allopatric distribution of the two clusters is due to neutral effects or due to different ecological requirements.
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Affiliation(s)
- T Urvois
- INRAE, URZF, Orleans, France
- UMR CBGP, INRAE, CIRAD, IRD, Institut Agro, Université Montpellier, Montpellier, France
| | - C Perrier
- UMR CBGP, INRAE, CIRAD, IRD, Institut Agro, Université Montpellier, Montpellier, France
| | | | - L Sauné
- UMR CBGP, INRAE, CIRAD, IRD, Institut Agro, Université Montpellier, Montpellier, France
| | | | - H Kajimura
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - J Hulcr
- School of Forest, Fisheries, and Geomatics Sciences, University of Florida, Gainesville, Florida, USA
- Department of Entomology and Nematology, University of Florida, Gainesville, Florida, USA
| | - A I Cognato
- Department of Entomology, Michigan State University, East Lansing, Michigan, USA
| | | | - C Kerdelhué
- UMR CBGP, INRAE, CIRAD, IRD, Institut Agro, Université Montpellier, Montpellier, France
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Marie-Claire C, Courtin C, Bellivier F, Gard S, Leboyer M, Scott J, Etain B. Methylomic biomarkers of lithium response in bipolar disorder: a clinical utility study. Int J Bipolar Disord 2023; 11:16. [PMID: 37119343 PMCID: PMC10148930 DOI: 10.1186/s40345-023-00296-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 04/14/2023] [Indexed: 05/01/2023] Open
Abstract
BACKGROUND Response to lithium (Li) is highly variable in bipolar disorders (BD). Despite decades of research, no clinical predictor(s) of response to Li prophylaxis have been consistently identified. Recently, we developed epigenetic Methylation Specific High-Resolution Melting (MS-HRM) assays able to discriminate good responders (GR) from non-responders (NR) to Li in individuals with BD type 1 (BD-I). This study examined whether a combination of clinical and epigenetic markers can distinguish NR from other types of Li responders. METHODS We recorded clinical variables that are potentially associated with Li response in 64 individuals with BD-I. MS-HRM assays were performed on DNA isolated from peripheral blood. We used backward stepwise logistic regression analyses, followed by receiver operating characteristic (ROC) curve analysis to estimate the performance of the clinical variables, alone then in combination with the epigenetic biomarkers, to identify GR and partial responders (PaR) vs NR. RESULTS Polarity at onset, psychotic symptoms at onset and family history of BD classified correctly 70% of individuals according to their Li response (PaR + GR = 86%; NR = 35%). When combined with the epigenetic biomarkers, these three clinical variables plus alcohol misuse (and one DMR: Differentially Methylated Region) correctly classified 86% of individuals, improving the prediction of PaR + GR (93%) and of NR (70%). The ROC analysis demonstrated an improvement in the area under the curve from 0.75 (clinical variables alone) to 0.87 (combination of clinical and epigenetic markers). CONCLUSIONS Combining clinical predictors and DNA methylation markers of Li response may have greater utility in clinical practice than relying on clinical characteristics alone.
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Affiliation(s)
- C Marie-Claire
- Inserm UMR-S 1144, Optimisation Thérapeutique en Neuropsychopharmacologie, Université Paris Cité, 4 Avenue de l'observatoire, 75006, Paris, France.
| | - C Courtin
- Inserm UMR-S 1144, Optimisation Thérapeutique en Neuropsychopharmacologie, Université Paris Cité, 4 Avenue de l'observatoire, 75006, Paris, France
| | - F Bellivier
- Inserm UMR-S 1144, Optimisation Thérapeutique en Neuropsychopharmacologie, Université Paris Cité, 4 Avenue de l'observatoire, 75006, Paris, France
- Département de Psychiatrie et de Médecine AddictologiqueHôpitaux Lariboisière-Fernand Widal, GHU APHP.Nord Université de Paris, 75010, Paris, France
- Fondation Fondamental, 94010, Créteil, France
| | - S Gard
- Fondation Fondamental, 94010, Créteil, France
- Centre Hospitalier Charles Perrens, Pôle de Psychiatrie Générale et Universitaire, Bordeaux, France
| | - M Leboyer
- Fondation Fondamental, 94010, Créteil, France
- Translational Neuro-Psychiatry, Université Paris Est Créteil, INSERM U955, IMRB, Créteil, France
- Département Médico-Universitaire de Psychiatrie et d'Addictologie (DMU IMPACT), Fédération Hospitalo-Universitaire de Médecine de Précision en Psychiatrie (FHU ADAPT), AP-HP, Hôpitaux Universitaires Henri Mondor, Créteil, France
| | - J Scott
- Institute of Neuroscience, Newcastle University, Newcastle Upon Tyne, NE4 5PL, UK
| | - B Etain
- Inserm UMR-S 1144, Optimisation Thérapeutique en Neuropsychopharmacologie, Université Paris Cité, 4 Avenue de l'observatoire, 75006, Paris, France
- Département de Psychiatrie et de Médecine AddictologiqueHôpitaux Lariboisière-Fernand Widal, GHU APHP.Nord Université de Paris, 75010, Paris, France
- Fondation Fondamental, 94010, Créteil, France
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Courtin C, Marie-Claire C, Gross G, Hennion V, Mundwiller E, Guégan J, Meyrel M, Bellivier F, Etain B. Gene expression of circadian genes and CIART in bipolar disorder: A preliminary case-control study. Prog Neuropsychopharmacol Biol Psychiatry 2023; 122:110691. [PMID: 36481223 DOI: 10.1016/j.pnpbp.2022.110691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 11/18/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022]
Abstract
Based on the observed circadian rhythms disruptions and sleep abnormalities in bipolar disorders (BD), a chronobiological model has been proposed suggesting that core clock genes play a central role in the vulnerability to the disorder. In this context, the analysis of circadian genes expression levels is particularly relevant, however studies focused on the whole set of core clock genes are scarce. We compared the levels of expression of 19 circadian genes (including the recently described circadian repressor (CIART)) in 37 euthymic individuals with BD and 20 healthy controls (HC), using data obtained by RNA sequencing of lymphoblastoid cell lines and validated the results using RT-qPCR. RNA sequencing data showed that CIART gene expression was correlated with those of ARNTL, ARNTL2, DBP, PER2 and TIMELESS. Data from RNA sequencing showed that the level of expression of four circadian genes (ARNTL, ARNTL2, BHLHE41 and CIART) discriminated individuals with BD from HC. We replicated this result using RT-qPCR for ARNTL and CIART. This study suggests that an imbalance between activation/repression of the transcription within the circadian system in individuals with BD as compared to HC and as such opens avenues for further research in larger independent samples combining both expression and epigenetic analyses.
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Affiliation(s)
- Cindie Courtin
- Université de Paris Cité, INSERM UMR-S 1144, Optimisation Thérapeutique en Neuropsychopharmacologie, OTeN, Paris, France
| | - Cynthia Marie-Claire
- Université de Paris Cité, INSERM UMR-S 1144, Optimisation Thérapeutique en Neuropsychopharmacologie, OTeN, Paris, France.
| | - Gregory Gross
- Pôle Hospitalo-Universitaire de Psychiatrie d'Adultes et d'Addictologie du Grand Nancy, Centre Psychothérapique de Nancy, Laxou, France; Université de Lorraine, Vandoeuvre-lès-Nancy, France
| | - Vincent Hennion
- Université de Paris Cité, INSERM UMR-S 1144, Optimisation Thérapeutique en Neuropsychopharmacologie, OTeN, Paris, France; Département de Psychiatrie et de Médecine Addictologique, Hôpitaux Lariboisière-Fernand Widal, GHU APHP.Nord - Université de Paris, Paris, France
| | | | - Justine Guégan
- Data Analysis Core platform, Institut du Cerveau - Paris Brain Institute - ICM, Sorbonne Université, Inserm, CNRS, APHP, Hôpital de la Pitié Salpêtrière, Paris, France
| | - Manon Meyrel
- Département de Psychiatrie et de Médecine Addictologique, Hôpitaux Lariboisière-Fernand Widal, GHU APHP.Nord - Université de Paris, Paris, France
| | - Frank Bellivier
- Université de Paris Cité, INSERM UMR-S 1144, Optimisation Thérapeutique en Neuropsychopharmacologie, OTeN, Paris, France; Département de Psychiatrie et de Médecine Addictologique, Hôpitaux Lariboisière-Fernand Widal, GHU APHP.Nord - Université de Paris, Paris, France
| | - Bruno Etain
- Université de Paris Cité, INSERM UMR-S 1144, Optimisation Thérapeutique en Neuropsychopharmacologie, OTeN, Paris, France; Département de Psychiatrie et de Médecine Addictologique, Hôpitaux Lariboisière-Fernand Widal, GHU APHP.Nord - Université de Paris, Paris, France
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Cattane N, Courtin C, Mombelli E, Maj C, Mora C, Etain B, Bellivier F, Marie-Claire C, Cattaneo A. Transcriptomics and miRNomics data integration in lymphoblastoid cells highlights the key role of immune-related functions in lithium treatment response in Bipolar disorder. BMC Psychiatry 2022; 22:665. [PMID: 36303132 PMCID: PMC9615157 DOI: 10.1186/s12888-022-04286-3] [Citation(s) in RCA: 3] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 09/09/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Bipolar Disorder (BD) is a complex mental disease characterized by recurrent episodes of mania and depression. Lithium (Li) represents the mainstay of BD pharmacotherapy, despite the narrow therapeutic index and the high variability in treatment response. However, although several studies have been conducted, the molecular mechanisms underlying Li therapeutic effects remain unclear. METHODS In order to identify molecular signatures and biological pathways associated with Li treatment response, we conducted transcriptome and miRNome microarray analyses on lymphoblastoid cell lines (LCLs) from 20 patients diagnosed with BD classified as Li responders (n = 11) or non-responders (n = 9). RESULTS We found 335 mRNAs and 77 microRNAs (miRNAs) significantly modulated in BD responders versus non-responders. Interestingly, pathway and network analyses on these differentially expressed molecules suggested a modulatory effect of Li on several immune-related functions. Indeed, among the functional molecular nodes, we found NF-κB and TNF. Moreover, networks related to these molecules resulted overall inhibited in BD responder patients, suggesting anti-inflammatory properties of Li. From the integrative analysis between transcriptomics and miRNomics data carried out using miRComb R package on the same samples from patients diagnosed with BD, we found 97 significantly and negatively correlated mRNA-miRNA pairs, mainly involved in inflammatory/immune response. CONCLUSIONS Our results highlight that Li exerts modulatory effects on immune-related functions and that epigenetic mechanisms, especially miRNAs, can influence the modulation of different genes and pathways involved in Li response. Moreover, our data suggest the potentiality to integrate data coming from different high-throughput approaches as a tool to prioritize genes and pathways.
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Affiliation(s)
- Nadia Cattane
- grid.419422.8Biological Psychiatry Unit, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
| | - Cindie Courtin
- grid.7429.80000000121866389Université Paris Cité, INSERM UMR-S 1144, Optimisation Thérapeutique en Neurospsychopharmacologie, OTeN, F-75006 Paris, France
| | - Elisa Mombelli
- grid.419422.8Biological Psychiatry Unit, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
| | - Carlo Maj
- grid.411097.a0000 0000 8852 305XInstitute for Genomic Statistics and Bioinformatics, University Hospital, Bonn, Germany
| | - Cristina Mora
- grid.419422.8Biological Psychiatry Unit, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
| | - Bruno Etain
- grid.7429.80000000121866389Université Paris Cité, INSERM UMR-S 1144, Optimisation Thérapeutique en Neurospsychopharmacologie, OTeN, F-75006 Paris, France ,Département de Psychiatrie et de Médecine Addictologique, Hôpitaux Lariboisière-Fernand Widal, GHU APHP Nord_Université Paris Cité, F-75010 Paris, France ,grid.484137.d0000 0005 0389 9389Fondation FondaMental, Créteil, France
| | - Frank Bellivier
- grid.7429.80000000121866389Université Paris Cité, INSERM UMR-S 1144, Optimisation Thérapeutique en Neurospsychopharmacologie, OTeN, F-75006 Paris, France ,Département de Psychiatrie et de Médecine Addictologique, Hôpitaux Lariboisière-Fernand Widal, GHU APHP Nord_Université Paris Cité, F-75010 Paris, France ,grid.484137.d0000 0005 0389 9389Fondation FondaMental, Créteil, France
| | - Cynthia Marie-Claire
- grid.7429.80000000121866389Université Paris Cité, INSERM UMR-S 1144, Optimisation Thérapeutique en Neurospsychopharmacologie, OTeN, F-75006 Paris, France
| | - Annamaria Cattaneo
- Biological Psychiatry Unit, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy. .,Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy.
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Atehortua Martinez LA, Curis E, Mekdad N, Larrieu C, Courtin C, Jourdren L, Blugeon C, Laplanche JL, Megarbane B, Marie-Claire C, Benturquia N. Individual differences in cocaine-induced conditioned place preference in male rats: Behavioral and transcriptomic evidence. J Psychopharmacol 2022; 36:1161-1175. [PMID: 36121009 PMCID: PMC9548661 DOI: 10.1177/02698811221123047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Substance use disorder emerges in a small proportion of drug users and has the characteristics of a chronic relapsing pathology. AIMS Our study aimed to demonstrate and characterize the variability in the expression of the rewarding effects of cocaine in the conditioned place preference (CPP) paradigm. METHODS A cocaine-CPP paradigm in male Sprague-Dawley rats with an extinction period of 12 days and reinstatement was conducted. A statistical model was developed to distinguish rats expressing or not a cocaine-induced place preference. RESULTS Two groups of rats were identified: rats that did express rewarding effects (CPP expression (CPPE), score >102 s) and rats that did not (no CPP expression (nCPPE), score between -85 and 59 s). These two groups did not show significant differences in a battery of behavioral tests. To identify differentially expressed genes in the CPPE and nCPPE groups, a whole-transcriptome ribonucleic acid-sequencing analysis was performed in the nucleus accumbens (NAc) 24 h after the CPP test. Four immediate early genes (Fos, Egr2, Nr4a1, and Zbtb37) were differentially expressed in the NAc of CPPE rats after expression of CPP. Variability in cocaine-induced place preference persisted in the CPPE and nCPPE groups after the extinction and reinstatement phases. Transcriptomic differences observed after reinstatement were distinct from those observed immediately after expression of CPP. CONCLUSION These new findings provide insights into the identification of mechanisms underlying interindividual variability in the response to cocaine's rewarding effects.
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Affiliation(s)
- Luisa Alessandra Atehortua Martinez
- Institut National de la Santé et de la Recherche Médicale UMR-S 1144, Optimisation Thérapeutique en Neuropsychopharmacologie, Université Paris Cité, Paris, France
| | - Emmanuel Curis
- UR 7537 BioSTM, Université Paris Cité, Paris, France,Laboratoire d’Hématologie, Hôpital Lariboisière, APHP, Paris, France
| | - Nawel Mekdad
- Institut National de la Santé et de la Recherche Médicale UMR-S 1144, Optimisation Thérapeutique en Neuropsychopharmacologie, Université Paris Cité, Paris, France
| | - Claire Larrieu
- Institut National de la Santé et de la Recherche Médicale UMR-S 1144, Optimisation Thérapeutique en Neuropsychopharmacologie, Université Paris Cité, Paris, France
| | - Cindie Courtin
- Institut National de la Santé et de la Recherche Médicale UMR-S 1144, Optimisation Thérapeutique en Neuropsychopharmacologie, Université Paris Cité, Paris, France
| | - Laurent Jourdren
- Genomic Facility, Institut de Biologie de l’École Normale Supérieure, École Normale Supérieure, Centre National pour la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale, PSL Research University, Paris, France
| | - Corinne Blugeon
- Genomic Facility, Institut de Biologie de l’École Normale Supérieure, École Normale Supérieure, Centre National pour la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale, PSL Research University, Paris, France
| | - Jean-Louis Laplanche
- Institut National de la Santé et de la Recherche Médicale UMR-S 1144, Optimisation Thérapeutique en Neuropsychopharmacologie, Université Paris Cité, Paris, France
| | - Bruno Megarbane
- Institut National de la Santé et de la Recherche Médicale UMR-S 1144, Optimisation Thérapeutique en Neuropsychopharmacologie, Université Paris Cité, Paris, France
| | - Cynthia Marie-Claire
- Institut National de la Santé et de la Recherche Médicale UMR-S 1144, Optimisation Thérapeutique en Neuropsychopharmacologie, Université Paris Cité, Paris, France
| | - Nadia Benturquia
- Institut National de la Santé et de la Recherche Médicale UMR-S 1144, Optimisation Thérapeutique en Neuropsychopharmacologie, Université Paris Cité, Paris, France,Nadia Benturquia, Institut National de la Santé et de la Recherche Médicale UMR-S 1144, Optimisation Thérapeutique en Neurospsychopharmacologie, Université de Paris Cité, Paris 75006, France.
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Marie-Claire C, Courtin C, Bellivier F, Scott J, Etain B. Methylomic Biomarkers of Lithium Response in Bipolar Disorder: A Proof of Transferability Study. Pharmaceuticals (Basel) 2022; 15:ph15020133. [PMID: 35215246 PMCID: PMC8877131 DOI: 10.3390/ph15020133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 01/19/2022] [Accepted: 01/20/2022] [Indexed: 12/10/2022] Open
Abstract
Response to lithium (Li) is highly variable in bipolar disorders (BD) and no clinical or biological predictors of long-term response have been validated to date. Using a genome-wide methylomic approach (SeqCapEpi), we previously identified seven differentially methylated regions (DMRs) that discriminated good from non-responders (prophylactic response phenotype defined using the “Alda” scale). This study is a proof of transferability from bench to bedside of this epigenetic signature. For this purpose, we used Methylation Specific High-Resolution Melting (MS-HRM), a PCR based method that can be implemented in any medical laboratory at low cost and with minimal equipment. In 23 individuals with BD, MS-HRM measures of three out of seven DMRs were technically feasible and consistencies between SeqCapEpi and MS-HRM-measures were moderate to high. In an extended sample of individuals with BD (n = 70), the three MS-HRM-measured DMRs mainly predicted nonresponse, with AUC between 0.70–0.80 according to different definitions of the phenotype (Alda- or machine-learning-based definitions). Classification tree analyses further suggested that the MS-HRM-measured DMRs correctly classified up to 84% of individuals as good or non-responders. This study suggested that epigenetic biomarkers, identified in a retrospective sample, accurately discriminate non-responders from responders to Li and may be transferrable to routine practice.
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Affiliation(s)
- Cynthia Marie-Claire
- INSERM UMR-S 1144, Optimisation Thérapeutique en Neurospsychopharmacologie (OTeN), Université de Paris, F-75006 Paris, France; (C.C.); (F.B.); (B.E.)
- Correspondence:
| | - Cindie Courtin
- INSERM UMR-S 1144, Optimisation Thérapeutique en Neurospsychopharmacologie (OTeN), Université de Paris, F-75006 Paris, France; (C.C.); (F.B.); (B.E.)
| | - Frank Bellivier
- INSERM UMR-S 1144, Optimisation Thérapeutique en Neurospsychopharmacologie (OTeN), Université de Paris, F-75006 Paris, France; (C.C.); (F.B.); (B.E.)
- AP-HP, GH Saint-Louis—Lariboisière—F. Widal, Pole de Psychiatrie et de Médecine Addictologique, F-75475 Paris, France
- Fondation Fonda Mental, F-94000 Créteil, France
| | - Jan Scott
- Institute of Neuroscience, Newcastle University, Newcastle upon Tyne NE4 5PL, UK;
| | - Bruno Etain
- INSERM UMR-S 1144, Optimisation Thérapeutique en Neurospsychopharmacologie (OTeN), Université de Paris, F-75006 Paris, France; (C.C.); (F.B.); (B.E.)
- AP-HP, GH Saint-Louis—Lariboisière—F. Widal, Pole de Psychiatrie et de Médecine Addictologique, F-75475 Paris, France
- Fondation Fonda Mental, F-94000 Créteil, France
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Abstract
Introduction: Diabetic foot ulcer is the main aetiology for non-traumatic amputation, which is a major public health care concern. A multidisciplinary approach in the management of this pathology has been shown to improve the surgical outcome. However, there are little data available on the tools we can use to pursue this multidisciplinary approach. The main goal of this cross-sectional study was to find out whether the implementation of a specific management pathway could improve the treatment outcome in the treatment of diabetic foot. Materials and Methods: From 2012 to 2014, we consecutively recruited patients with diabetic foot referred to Orthopaedic surgery department of our university for surgical opinion. A specific diabetic foot pathway was introduced in 2013. One group of patients who were treated with previous method were evaluated retrospectively. Another group of patients who were treated after implementation of the pathway were evaluated prospectively. We compared treatment outcome between the two groups. Results: We included 51 patients. Amputation rate was similar both the groups: 74% in the retrospective group not using the new pathway versus 73% in a prospective group that used the new pathway. Revision surgery was 39% in the retrospective group and 14% in the prospective group (p=0.05). Conclusion: We recommend the use of this simple and cost-effective pathway to guide the interdisciplinary management of diabetic foot. A prospective study with more subjects would provide a better overview of this management pathway.
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Affiliation(s)
- V Belgaid
- Department of Orthopaedic and Traumatology, Centre Hospitalier Lyon-Sud, Pierre-Benite, France
| | - C Courtin
- Department of Orthopaedic and Traumatology, Centre Hospitalier Lyon-Sud, Pierre-Benite, France
| | - R Desmarchelier
- Department of Orthopaedic and Traumatology, Centre Hospitalier Lyon-Sud, Pierre-Benite, France
| | - M Fessy
- Department of Orthopaedic and Traumatology, Centre Hospitalier Lyon-Sud, Pierre-Benite, France
| | - J L Besse
- Department of Orthopaedic and Traumatology, Centre Hospitalier Lyon-Sud, Pierre-Benite, France
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Grillault Laroche D, Curis E, Bellivier F, Nepost C, Courtin C, Etain B, Marie-Claire C. Childhood maltreatment and HPA axis gene expression in bipolar disorders: A gene network analysis. Psychoneuroendocrinology 2020; 120:104753. [PMID: 32634746 DOI: 10.1016/j.psyneuen.2020.104753] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 11/20/2019] [Revised: 05/13/2020] [Accepted: 05/29/2020] [Indexed: 02/06/2023]
Abstract
INTRODUCTION Bipolar disorder (BD) is highly associated with childhood maltreatment (CM), the exposure to such early adversity being suggested to disrupt the expression of several biological pathways. This study aims at exploring associations between the mRNA levels of 9 HPA axis genes in lymphoblastoid cell lines from patients with BD according to their self-reported exposure to CM. METHODS The sample consisted of 33 Caucasian patients with a diagnosis of BD type 1, assessed for the exposure to CM with the Childhood Trauma Questionnaire (CTQ). Quantitative RT-PCR was performed on 9 transcripts of the HPA axis genes: DGKH, FKBP5, NR3C1, SGK1, SGK2, SGK3, SKA2, STAT5A and UCN. RT-qPCR data were analyzed using the method of disjoint gene networks with SARP.compo package for R. RESULTS We found no associations between CTQ total score and the amount of HPA axis transcripts neither in univariate analyses, nor with network analyses. Emotional abuse (EA) was associated with a significant decreased expression of two transcripts, DGKH (p = 0.009) and NR3C1 (p = 0.04). This was confirmed by the disjoint network analysis, which showed that NR3C1 and DGKH were expressed differently from the rest of the HPA axis network in presence of emotional abuse. DISCUSSION This study described the expression levels of a comprehensive set of HPA axis genes according to childhood maltreatment in a sample of patients with BD type 1 and suggested that emotional abuse decreased the expression of NR3C1 and DGKH. Our results require further replication in independent larger samples.
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Affiliation(s)
- D Grillault Laroche
- Unité INSERM UMR-S 1144 Optimisation thérapeutique en Neuropsychopharmacologie, Paris, France; AP-HP, GHU Saint-Louis - Lariboisière-F. Widal, Pôle de Psychiatrie et de Médecine Addictologique, Paris, France; Université de Paris, Paris, France.
| | - E Curis
- Laboratoire de Biomathématiques, EA 7537 BioSTM, Faculté de Pharmacie de Paris, Université Paris Descartes, Sorbonne Paris Cité, Paris, France; Service de Bioinformatique et Information Médicale, Hôpital Saint-Louis, AP-HP, Paris, France
| | - F Bellivier
- Unité INSERM UMR-S 1144 Optimisation thérapeutique en Neuropsychopharmacologie, Paris, France; AP-HP, GHU Saint-Louis - Lariboisière-F. Widal, Pôle de Psychiatrie et de Médecine Addictologique, Paris, France; Université de Paris, Paris, France
| | - C Nepost
- Unité INSERM UMR-S 1144 Optimisation thérapeutique en Neuropsychopharmacologie, Paris, France
| | - C Courtin
- Unité INSERM UMR-S 1144 Optimisation thérapeutique en Neuropsychopharmacologie, Paris, France
| | - B Etain
- Unité INSERM UMR-S 1144 Optimisation thérapeutique en Neuropsychopharmacologie, Paris, France; AP-HP, GHU Saint-Louis - Lariboisière-F. Widal, Pôle de Psychiatrie et de Médecine Addictologique, Paris, France; Université de Paris, Paris, France
| | - C Marie-Claire
- Unité INSERM UMR-S 1144 Optimisation thérapeutique en Neuropsychopharmacologie, Paris, France
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Moreira J, Noé G, Rangarajan S, Courtin C, Etain B, Geoffroy PA, Laplanche JL, Vidal M, Bellivier F, Marie-Claire C. Lithium effects on serine-threonine kinases activity: High throughput kinomic profiling of lymphoblastoid cell lines from excellent-responders and non-responders bipolar patients. World J Biol Psychiatry 2020; 21:317-324. [PMID: 29893160 DOI: 10.1080/15622975.2018.1487078] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
Objectives: Lithium is the leading mood stabiliser for maintenance treatment in bipolar disorder (BD). However, response to lithium is heterogeneous with more than 60% of patients experiencing partial or no response. In vitro and in vivo molecular studies have reported the implication of kinases in the pathophysiology of BD.Methods: Since kinases are putative targets for lithium therapeutic action, we conducted the first pilot study using kinase array technology to evaluate the global serine/threonine kinases (STK) profiles in cell lines from BD I subtype patients classified as lithium excellent-responders (ER) and non-responder (NR) to lithium treatment.Results: We found significant differences in the basal STK profiles between ER and NR to lithium. We also tested lithium influence on the global STK profile and found no significant difference between ER vs NR cell lines.Conclusions: The results obtained in this exploratory study suggest that multiplex kinase activity profiling could provide a complementary approach in the study of biomarkers of therapeutic response in BD.
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Affiliation(s)
- Jeverson Moreira
- Variabilité de réponse aux psychotropes, INSERM U1144/Faculté de Pharmacie de Paris, Université Paris Descartes, Université Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - Gaëlle Noé
- AP-HP, Hôpital Cochin, Biologie du medicament-Toxicologie, Université Paris Descartes, Paris, France.,UMR8638 CNRS, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | | | - Cindie Courtin
- Variabilité de réponse aux psychotropes, INSERM U1144/Faculté de Pharmacie de Paris, Université Paris Descartes, Université Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - Bruno Etain
- Variabilité de réponse aux psychotropes, INSERM U1144/Faculté de Pharmacie de Paris, Université Paris Descartes, Université Paris Diderot, Sorbonne Paris Cité, Paris, France.,AP-HP, GH Saint-Louis - Lariboisière - F. Widal, Pôle de Psychiatrie et de Médecine Addictologique, Paris, France.,Fondation FondaMental, Créteil, France
| | - Pierre A Geoffroy
- Variabilité de réponse aux psychotropes, INSERM U1144/Faculté de Pharmacie de Paris, Université Paris Descartes, Université Paris Diderot, Sorbonne Paris Cité, Paris, France.,AP-HP, GH Saint-Louis - Lariboisière - F. Widal, Pôle de Psychiatrie et de Médecine Addictologique, Paris, France.,Fondation FondaMental, Créteil, France
| | - Jean-Louis Laplanche
- Variabilité de réponse aux psychotropes, INSERM U1144/Faculté de Pharmacie de Paris, Université Paris Descartes, Université Paris Diderot, Sorbonne Paris Cité, Paris, France.,Département de Biochimie and Biologie moléculaire, AP-HP, GH Saint-Louis - Lariboisière - F. Widal, Paris, France
| | - Michel Vidal
- AP-HP, Hôpital Cochin, Biologie du medicament-Toxicologie, Université Paris Descartes, Paris, France.,UMR8638 CNRS, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Frank Bellivier
- Variabilité de réponse aux psychotropes, INSERM U1144/Faculté de Pharmacie de Paris, Université Paris Descartes, Université Paris Diderot, Sorbonne Paris Cité, Paris, France.,AP-HP, GH Saint-Louis - Lariboisière - F. Widal, Pôle de Psychiatrie et de Médecine Addictologique, Paris, France.,Fondation FondaMental, Créteil, France
| | - Cynthia Marie-Claire
- Variabilité de réponse aux psychotropes, INSERM U1144/Faculté de Pharmacie de Paris, Université Paris Descartes, Université Paris Diderot, Sorbonne Paris Cité, Paris, France
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Geoffroy PA, Curis E, Courtin C, Moreira J, Morvillers T, Etain B, Laplanche JL, Bellivier F, Marie-Claire C. Lithium response in bipolar disorders and core clock genes expression. World J Biol Psychiatry 2018; 19:619-632. [PMID: 28095742 DOI: 10.1080/15622975.2017.1282174] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
OBJECTIVES We examine whether the lithium response is associated with changes in the expression of core clock genes. METHODS The effect of a therapeutic concentration of lithium (1 mM) on the expression levels of 17 circadian genes was examined in lymphoblastoid cell lines (LCLs) derived from two well-characterized groups of bipolar disorder patients, defined as lithium non-responders (NR, n = 20) or excellent responders (ER, n = 16). Quantitative real-time PCR (qRT-PCR) was conducted at 2, 4 and 8 days (d2, d4 and d8) with and without lithium exposure. RESULTS At d2, in ER only, BHLHE41, RORA, PER1, ARNTL, CRY2, BHLHE40 and CSNK1D were upregulated, whereas NR1D1 was downregulated. At d4, in ER only, CRY1 was downregulated. At d8, in NR only, GSK3β was upregulated and DBP, TIMELESS and CRY1 were downregulated. Significant Group × Lithium interactions existed for NR1D1 at d2 (P = 0.02), and CRY1 at d4 (P = 0.02). Longitudinal analyses showed differential temporal evolutions between NR and ER (significant Time × Group interaction) for PER3, NR1D1, DBP, RORA, CSNK1D and TIMELESS; and a significant Time × Lithium interaction for NR1D1. Coexpression data analyses suggested distinct groups of circadian genes concurrently modulated by lithium. CONCLUSIONS In LCLs, lithium influences expression of circadian genes with differences in amplitude and kinetics according to the patient's lithium response status.
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Affiliation(s)
- Pierre A Geoffroy
- a Inserm U1144 , Paris , France.,b Université Paris Diderot , Sorbonne Paris Cité, UMR-S 1144 , Paris , France.,c AP-HP, GH Saint-Louis-Lariboisière-F. Widal , Pôle de Psychiatrie et de Médecine Addictologique , Paris , France.,d Fondation FondaMental , Créteil , France
| | - Emmanuel Curis
- a Inserm U1144 , Paris , France.,e Université Paris Descartes , UMR-S 1144 , Paris , France.,f Laboratoire de biomathématiques, Faculté de pharmacie de Paris Université Paris Descartes , Paris , France.,g Département de biostatistiques et d'informatique médicales , Hôpital Saint-Louis, APHP , Paris , France
| | - Cindie Courtin
- a Inserm U1144 , Paris , France.,e Université Paris Descartes , UMR-S 1144 , Paris , France
| | - Jeverson Moreira
- a Inserm U1144 , Paris , France.,e Université Paris Descartes , UMR-S 1144 , Paris , France
| | | | - Bruno Etain
- a Inserm U1144 , Paris , France.,b Université Paris Diderot , Sorbonne Paris Cité, UMR-S 1144 , Paris , France.,c AP-HP, GH Saint-Louis-Lariboisière-F. Widal , Pôle de Psychiatrie et de Médecine Addictologique , Paris , France.,d Fondation FondaMental , Créteil , France
| | - Jean-Louis Laplanche
- a Inserm U1144 , Paris , France.,b Université Paris Diderot , Sorbonne Paris Cité, UMR-S 1144 , Paris , France.,e Université Paris Descartes , UMR-S 1144 , Paris , France
| | - Frank Bellivier
- a Inserm U1144 , Paris , France.,b Université Paris Diderot , Sorbonne Paris Cité, UMR-S 1144 , Paris , France.,c AP-HP, GH Saint-Louis-Lariboisière-F. Widal , Pôle de Psychiatrie et de Médecine Addictologique , Paris , France.,d Fondation FondaMental , Créteil , France
| | - Cynthia Marie-Claire
- a Inserm U1144 , Paris , France.,b Université Paris Diderot , Sorbonne Paris Cité, UMR-S 1144 , Paris , France.,e Université Paris Descartes , UMR-S 1144 , Paris , France
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Suriano F, Neyrinck A, Verspreet J, Courtin C, Cani P, Bindels L, Delzenne N. OR54: Effects of Fibers Derived from Cereals in the Modulation of Inflammation Induced by an Overconsumption of Fructose: Implication of the Gut Microbiota. Clin Nutr 2017. [DOI: 10.1016/s0261-5614(17)30733-1] [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: 10/18/2022]
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Moreira J, Courtin C, Geoffroy PA, Curis E, Bellivier F, Marie-Claire C. Lithium response in bipolar disorder: No difference in GADL1 gene expression between cell lines from excellent-responders and non-responders. Psychiatry Res 2017; 251:217-220. [PMID: 28214779 DOI: 10.1016/j.psychres.2017.02.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [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: 08/19/2016] [Revised: 01/02/2017] [Accepted: 02/09/2017] [Indexed: 11/15/2022]
Abstract
Previous association studies have shown mixed results between glutamic acid decarboxylase like-1 (GADL1) gene polymorphism and prophylactic lithium response in bipolar disorder (BD) patients. In the present study, GADL1 gene expression was investigated in regard to lithium response, using Alda scale, in lymphoblastoid cells (LCLs) of 36 Caucasian BD patients. No difference in GADL1 expression was observed among LCLs from excellent-responders, non-responders or controls. Furthermore, lithium did not induce significant changes in GADL1 expression levels after 4 or 8 days. These results did not support an association of GADL1 expression in the determination of a lithium response in BD patients.
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Affiliation(s)
- Jeverson Moreira
- Inserm, U1144, Paris F-75006, France; Université Sorbonne Paris Cité, UMR-S 1144, Paris F-75006, France.
| | - Cindie Courtin
- Inserm, U1144, Paris F-75006, France; Université Sorbonne Paris Cité, UMR-S 1144, Paris F-75006, France
| | - Pierre A Geoffroy
- Inserm, U1144, Paris F-75006, France; Université Sorbonne Paris Cité, UMR-S 1144, Paris F-75006, France; AP-HP, GH Saint-Louis - Lariboisière - F. Widal, Pôle de Psychiatrie et de Médecine Addictologique, 75475 Paris cedex 10, France; Fondation FondaMental, Créteil, 94000, France
| | - Emmanuel Curis
- Inserm, U1144, Paris F-75006, France; Université Sorbonne Paris Cité, UMR-S 1144, Paris F-75006, France; Département de Biostatistique et Informatique Médicale, Hôpital Saint-Louis, APHP, Paris, France; Laboratoire de biomathématiques, plateau iB(2), Faculté de pharmacie de Paris, France
| | - Frank Bellivier
- Inserm, U1144, Paris F-75006, France; Université Sorbonne Paris Cité, UMR-S 1144, Paris F-75006, France; AP-HP, GH Saint-Louis - Lariboisière - F. Widal, Pôle de Psychiatrie et de Médecine Addictologique, 75475 Paris cedex 10, France; Fondation FondaMental, Créteil, 94000, France
| | - Cynthia Marie-Claire
- Inserm, U1144, Paris F-75006, France; Université Sorbonne Paris Cité, UMR-S 1144, Paris F-75006, France.
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Janssens P, Courtin C, Saint-Remy A, Voogeleer MN, Ngendahayo P, Bouffioux B. [Vesiculobullous Sweet's syndrome]. Ann Dermatol Venereol 2016; 144:233-235. [PMID: 27726871 DOI: 10.1016/j.annder.2016.08.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 08/26/2016] [Accepted: 08/31/2016] [Indexed: 11/29/2022]
Affiliation(s)
- P Janssens
- Service de dermatologie UCL, cliniques universitaires Saint-Luc, 10, avenue Hippocrate, 1200 Woluwe-Saint-Lambert, Belgique.
| | - C Courtin
- Service de dermatologie, clinique Saint-Pierre (CSPO), 9, avenue Reine-Fabiola, 1340 Ottignies, Belgique
| | - A Saint-Remy
- Service de dermatologie, clinique Saint-Pierre (CSPO), 9, avenue Reine-Fabiola, 1340 Ottignies, Belgique
| | - M-N Voogeleer
- Service de dermatologie, clinique Saint-Pierre (CSPO), 9, avenue Reine-Fabiola, 1340 Ottignies, Belgique
| | - P Ngendahayo
- Institut de pathologie et de génétique (IPG), 25, avenue Georges-Lemaître, 6041 Gosselies, Belgique
| | - B Bouffioux
- Service de dermatologie, clinique Saint-Pierre (CSPO), 9, avenue Reine-Fabiola, 1340 Ottignies, Belgique
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Bilad MR, Baten M, Pollet A, Courtin C, Wouters J, Verbiest T, J. Vankelecom IF. A novel In-situ Enzymatic Cleaning Method for Reducing Membrane Fouling in Membrane Bioreactors (MBRs). IJOST 2016. [DOI: 10.17509/ijost.v1i1.2211] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
A novel in-situ enzymatic cleaning method was developed for fouling control in membrane bioreactors (MBRs). It is achieved by bringing the required enzymes near the membrane surface by pulling the enzymes to a magnetic membrane (MM) surface by means of magnetic forces, exactly where the cleaning is required. To achieve this, the enzyme was coupled to a magnetic nanoparticle (MNP) and the membrane it self was loaded with MNP. The magnetic activity was turned by means of an external permanent magnet. The effectiveness of concept was tested in a submerged membrane filtration using the model enzyme-substrate of Bacillus subitilis xylanase-arabinoxylan. The MM had almost similar properties compared to the unloaded ones, except for its well distributed MNPs. The enzyme was stable during coupling conditions and the presence of coupling could be detected using a high-performance anion-exchange chromatography (HPAEC) analysis and Fourier transform infrared spectroscopy (FTIR). The system facilitated an in-situ enzymatic cleaning and could be effectively applied for control fouling in membrane bioreactors (MBRs).
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Courtin C, Mathieu L, Rongiéras F, Bertani A, Chauvin F. [Comorbid puffy hand syndrome and factitious disorders: an unusual association with poor prognosis]. ACTA ACUST UNITED AC 2013; 32:251-4. [PMID: 23856549 DOI: 10.1016/j.main.2013.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2013] [Accepted: 05/04/2013] [Indexed: 11/24/2022]
Abstract
The authors report an original clinical presentation of factitious disorders of the upper extremity in an ex-drug-addict patient with puffy hand syndrome. Chronic self-inflicted ulcerations appeared with sequential manner. The patient confessed deliberate self-harm and transfer of anxiety on his hands, the aspect of which had become intolerable. Association of puffy hand syndrome with comorbid psychosis and major depression explained immediate recurrence of ulcerations despite fitted medication and long-term psychotherapy.
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Affiliation(s)
- C Courtin
- Service de Chirurgie Orthopédique et Traumatologique, Hôpital D'instruction des Armées Desgenettes, 108 Boulevard Pinel, 69275 Lyon Cedex 03, France
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Belkaï E, Crété D, Courtin C, Noble F, Marie-Claire C. Comparison of the transcriptional responses induced by acute morphine, methadone and buprenorphine. Eur J Pharmacol 2013; 711:10-8. [DOI: 10.1016/j.ejphar.2013.04.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Revised: 04/05/2013] [Accepted: 04/13/2013] [Indexed: 12/01/2022]
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Barbier E, Launay-Vacher G, Chaumais MC, Rieutord A, Haddad R, Courtin C. CPC-040 Design and Assessment of an E-Learning Course to Train Clinical Pharmacists in Vitamin K Antagonist (VKA) Consultations. Eur J Hosp Pharm 2013. [DOI: 10.1136/ejhpharm-2013-000276.497] [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: 11/04/2022] Open
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Caffin AG, Algalarrondo V, Dinanian S, Rieutord A, Haddad R, Courtin C. GRP-189 Upgrading a Vitamin K Antagonist Consultation Programme: Identification of New Oral Anticoagulant (NOAC) Prescription Particularities. Eur J Hosp Pharm 2013. [DOI: 10.1136/ejhpharm-2013-000276.189] [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: 11/04/2022] Open
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Auger-Rozenberg MA, Boivin T, Magnoux E, Courtin C, Roques A, Kerdelhué C. Inferences on population history of a seed chalcid wasp: invasion success despite a severe founder effect from an unexpected source population. Mol Ecol 2012; 21:6086-103. [PMID: 23110419 DOI: 10.1111/mec.12077] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2012] [Revised: 08/29/2012] [Accepted: 09/04/2012] [Indexed: 11/30/2022]
Affiliation(s)
- M.-A. Auger-Rozenberg
- INRA, UR633 Unité de Recherche de Zoologie Forestière; 2163 Avenue de la Pomme de Pin CS 40001 Ardon; F-45075; Orléans; Cedex 2; France
| | - T. Boivin
- INRA, UR629 Ecologie des Forêts Méditerranéennes; Site Agroparc; F-84914; Avignon; Cedex 09; France
| | - E. Magnoux
- INRA, UR633 Unité de Recherche de Zoologie Forestière; 2163 Avenue de la Pomme de Pin CS 40001 Ardon; F-45075; Orléans; Cedex 2; France
| | - C. Courtin
- INRA, UR633 Unité de Recherche de Zoologie Forestière; 2163 Avenue de la Pomme de Pin CS 40001 Ardon; F-45075; Orléans; Cedex 2; France
| | - A. Roques
- INRA, UR633 Unité de Recherche de Zoologie Forestière; 2163 Avenue de la Pomme de Pin CS 40001 Ardon; F-45075; Orléans; Cedex 2; France
| | - C. Kerdelhué
- INRA, UMR CBGP (INRA; IRD; CIRAD; Montpellier Supagro), Campus International de Baillarguet; CS 30016, F-34988; Montferrier-sur-Lez; France
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Curatolo N, Assoukpa J, Desnoyer A, Haddad R, Courtin C, Dagher I, Rieutord A. A process-oriented approach to medication reconciliation at admission in a surgery department. Eur J Hosp Pharm 2012. [DOI: 10.1136/ejhpharm-2012-000074.35] [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: 11/04/2022] Open
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van Munster M, le Gleuher M, Pauchet Y, Augustin S, Courtin C, Amichot M, Ffrench-Constant RH, Pauron D. Molecular characterization of three genes encoding aminopeptidases N in the poplar leaf beetle Chrysomela tremulae. Insect Mol Biol 2011; 20:267-278. [PMID: 21205278 DOI: 10.1111/j.1365-2583.2010.01067.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Three genes encoding proteins showing sequence similarity and features typical of insect APNs were characterized in C. tremulae and designed as CtAPN1, CtAPN2 and CtAPN3. Expression analysis of the three C. tremulae APN genes showed that CtAPN2 transcript is more abundant in the fat body, whereas both CtAPN1 and CtAPN3 are specifically expressed in the midgut. Despite a similar genomic organization, lepidopteran and coleopteran APNs are phylogenetically distant, suggesting that APN gene duplication events occurred after these two insect orders split. Sequence and expression comparisons of CtAPN1, CtAPN2 and CtAPN3 cDNAs in a C. tremulae Bacillus thuringiensis (Bt)-susceptible and in a Bt-resistant strain did not show any polymorphism at the amino acid level or difference at the transcription level.
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Affiliation(s)
- M van Munster
- INRA, UMR 1301 Interactions Biotiques et Santé Végétale, Sophia Antipolis, France.
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23
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Courtin C, Hervé PY, Petit L, Zago L, Vigneau M, Beaucousin V, Jobard G, Mazoyer B, Mellet E, Tzourio-Mazoyer N. The neural correlates of highly iconic structures and topographic discourse in French Sign Language as observed in six hearing native signers. Brain Lang 2010; 114:180-192. [PMID: 20542548 DOI: 10.1016/j.bandl.2010.05.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2009] [Revised: 04/02/2010] [Accepted: 05/07/2010] [Indexed: 05/29/2023]
Abstract
"Highly iconic" structures in Sign Language enable a narrator to act, switch characters, describe objects, or report actions in four-dimensions. This group of linguistic structures has no real spoken-language equivalent. Topographical descriptions are also achieved in a sign-language specific manner via the use of signing-space and spatial-classifier signs. We used functional magnetic resonance imaging (fMRI) to compare the neural correlates of topographic discourse and highly iconic structures in French Sign Language (LSF) in six hearing native signers, children of deaf adults (CODAs), and six LSF-naïve monolinguals. LSF materials consisted of videos of a lecture excerpt signed without spatially organized discourse or highly iconic structures (Lect LSF), a tale signed using highly iconic structures (Tale LSF), and a topographical description using a diagrammatic format and spatial-classifier signs (Topo LSF). We also presented texts in spoken French (Lect French, Tale French, Topo French) to all participants. With both languages, the Topo texts activated several different regions that are involved in mental navigation and spatial working memory. No specific correlate of LSF spatial discourse was evidenced. The same regions were more activated during Tale LSF than Lect LSF in CODAs, but not in monolinguals, in line with the presence of signing-space structure in both conditions. Motion processing areas and parts of the fusiform gyrus and precuneus were more active during Tale LSF in CODAs; no such effect was observed with French or in LSF-naïve monolinguals. These effects may be associated with perspective-taking and acting during personal transfers.
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Affiliation(s)
- C Courtin
- CI-NAPS, UMR, CNRS, CEA, Université de Caen et Université Paris Descartes, France.
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24
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Maurizi L, Marié JL, Courtin C, Gorsane S, Chal D, Davoust B. Seroprevalence survey of equine anaplasmosis in France and in sub-Saharan Africa. Clin Microbiol Infect 2009; 15 Suppl 2:68-9. [PMID: 19793122 DOI: 10.1111/j.1469-0691.2008.02191.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- L Maurizi
- Secteur Vétérinaire de Rennes, France
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25
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Marie-Claire C, Salzmann J, David A, Courtin C, Canestrelli C, Noble F. Rnd family genes are differentially regulated by 3,4-methylenedioxymethamphetamine and cocaine acute treatment in mice brain. Brain Res 2006; 1134:12-7. [PMID: 17196187 DOI: 10.1016/j.brainres.2006.11.065] [Citation(s) in RCA: 27] [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] [Subscribe] [Scholar Register] [Received: 04/24/2006] [Revised: 11/17/2006] [Accepted: 11/26/2006] [Indexed: 01/28/2023]
Abstract
Drugs of abuse induce alterations in cytoskeletal and cytoskeleton associated genes in several brain areas. We have previously shown that acute MDMA regulates the mRNA level of Rnd3, a Rho GTPase involved in actin cytoskeleton regulation, in mice striatum. In this study we investigated the effects of single administration of cocaine, another psychostimulant with a slightly different mechanism of action, on the mRNA levels of the three members of the Rnd genes family (Rnd1, Rnd2 and Rnd3). Mice were treated with either MDMA (9 mg/kg) or cocaine (20 mg/jg) and brain samples (i.e. hippocampus, striatum and prefrontal cortex) were processed for quantitative real-time PCR assay 1, 2, 4 and 6 h after the injections. The expression level of Rnd2 was differentially affected depending on the drug, brain area and time point after injection. Interestingly the two drugs up-regulate Rnd3 gene expression in the three structures tested with some differences in the timing. The effects of MDMA on Rnd3 appear earlier in the hippocampus as compared to cocaine, while it is the opposite in the prefrontal cortex. However, in the dorsal striatum, the two drugs induce an early and significant up-regulation of Rnd3 expression that is longer-lasting in the case of MDMA. In the case of cocaine contrarily to what was observed with MDMA, this modulation could not be blocked with the ERK activation inhibitor SL327 suggesting that the two drugs lead to the same effect on Rnd3 by two distinct pathways.
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Affiliation(s)
- Cynthia Marie-Claire
- CNRS, UMR7157, INSERM, U705, Universite Paris Descartes, Neuropsychopharmacologie des addictions, Paris, F-75006 France
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Marie-Claire C, Courtin C, Robert A, Gidrol X, Roques BP, Noble F. Sensitization to the conditioned rewarding effects of morphine modulates gene expression in rat hippocampus. Neuropharmacology 2006; 52:430-5. [PMID: 17014870 PMCID: PMC1976342 DOI: 10.1016/j.neuropharm.2006.08.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2006] [Revised: 07/21/2006] [Accepted: 08/16/2006] [Indexed: 01/17/2023]
Abstract
Opiates addiction is characterized by its long-term persistence. In order to study the enduring changes in long-term memory in hippocampus, a pivotal region for this process, we used suppression subtractive hybridization to compare hippocampal gene expression in morphine and saline-treated rats. Animals were subjected to an extended place preference paradigm consisting of four conditioning phases. Sensitization to the reinforcing effects of the drug occurred after three conditioning phases. After 25 days of treatment rats were euthanized and the complementary DNA (cDNA) from the hippocampus of morphine-dependent and saline-treated animals were then screened for differentially expressed cDNAs. The selected 177 clones were then subjected to a microarray procedure and 20 clones were found differentially regulated. The pattern of regulated genes suggests impairments in neurotransmitter release and the activation of neuroprotective pathways.
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Affiliation(s)
- Cynthia Marie-Claire
- Neuropsychopharmacologie des addictions. Vulnérabilité et variabilité expérimentale et clinique
CNRS : UMR7157 INSERM : U705 IFR71Université René Descartes - Paris V Université Denis Diderot - Paris VIIFaculté de Pharmacie
4 avenue de l'Observatoire
75006 PARIS,FR
| | - Cindie Courtin
- Neuropsychopharmacologie des addictions. Vulnérabilité et variabilité expérimentale et clinique
CNRS : UMR7157 INSERM : U705 IFR71Université René Descartes - Paris V Université Denis Diderot - Paris VIIFaculté de Pharmacie
4 avenue de l'Observatoire
75006 PARIS,FR
| | - Amelie Robert
- Service de génomique fonctionnelle
CEAGenopole d'Evry
91057 Evry Cedex,FR
| | - Xavier Gidrol
- Service de génomique fonctionnelle
CEAGenopole d'Evry
91057 Evry Cedex,FR
| | - Bernard P. Roques
- Pharmacochimie moléculaire et structurale
CNRS : FRE2463Université René Descartes - Paris V4 Av de l'Observatoire
75270 PARIS CEDEX 06,FR
| | - Florence Noble
- Neuropsychopharmacologie des addictions. Vulnérabilité et variabilité expérimentale et clinique
CNRS : UMR7157 INSERM : U705 IFR71Université René Descartes - Paris V Université Denis Diderot - Paris VIIFaculté de Pharmacie
4 avenue de l'Observatoire
75006 PARIS,FR
- * Correspondence should be adressed to: Florence Noble
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Wenes AL, Bourguet D, Andow DA, Courtin C, Carré G, Lorme P, Sanchez L, Augustin S. Frequency and fitness cost of resistance to Bacillus thuringiensis in Chrysomela tremulae (Coleoptera: Chrysomelidae). Heredity (Edinb) 2006; 97:127-34. [PMID: 16705321 DOI: 10.1038/sj.hdy.6800845] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.8] [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: 11/08/2022] Open
Abstract
The "high dose-refuge" (HDR) strategy is commonly recommended and currently used for delaying or preventing pest adaptation to transgenic plants producing Bacillus thuringiensis (Bt) toxins. The efficiency of this strategy depends, among other factors, on the initial frequency of Bt resistance alleles and on the fitness costs associated with these alleles. Two years ago, an allele conferring resistance to Bt poplar was detected in a French population of the poplar pest Chrysomela tremulae F. Although this pest had never been subjected to Bt selection pressure due to human activities, the frequency of this allele was estimated at 0.0037, with a 95% credible (CI) interval of 0.00045-0.0080. We investigated the frequency of this allele in a second sample of C. tremulae collected more than 500 km from the site of the initial population. The estimated frequency in this sample was 0.0113 (95% CI 0.0031-0.0247), reinforcing the conclusion that resistance to Bt plants may be present at detectable frequencies in pest populations before selection resulting from pest management by humans. The frequency of the Bt resistance allele over the two samples was 0.0049 (95% CI 0.0020-0.0091). We also followed five laboratory lines in which the frequency of this allele was initially fixed at 0.500. After five generations maintained on non-Bt poplar leaves, the frequency of this allele decreased in all lines, whereas allelic frequencies at a neutral locus were unaffected. Thus, the Bt resistance allele detected in French populations of C. tremulae is probably associated with a fitness cost.
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Affiliation(s)
- A-L Wenes
- Institut National de la Recherche Agronomique, Centre de Recherches d'Orléans, Unité de Zoologie Forestière, Ardon, Olivet 45166, France
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Courtin C, Crete D, Canestrelli C, Noble F, Marie-Claire C. Regulation of genes involved in dopamine transporter modulation by acute cocaine in rat striatum. Neurosci Lett 2006; 398:235-40. [PMID: 16459018 PMCID: PMC1975760 DOI: 10.1016/j.neulet.2006.01.001] [Citation(s) in RCA: 11] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2005] [Revised: 01/03/2006] [Accepted: 01/03/2006] [Indexed: 11/19/2022]
Abstract
It is well established that acute administration of psychostimulants alters dopamine transport. However, the exact mechanism of this modulation is still unknown. In this study we examined the mRNA levels of several proteins involved in the various proposed processes following cocaine administration. The expression levels of several immediate early genes were also studied. This was performed in rat striatum using real-time quantitative PCR. As expected, a marked increase of the immediate early genes Fos, Egr1 and Egr3 was observed. Egr2 was also found up-regulated. Among the different genes studied only Synaptotagmin4 in the SNARE family and Synphilin1 in the synaptic vesicles binding family were modulated by acute cocaine treatment. Interestingly, acute amphetamine treatment did not increase either Synaptotagmin4 and Synphilin1 mRNA levels, although increases in early genes expression were noted.
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Affiliation(s)
- Cindie Courtin
- Neuropsychopharmacologie des addictions. Vulnérabilité et variabilité expérimentale et clinique
CNRS : UMR7157 INSERM : U705 IFR71Université René Descartes - Paris V Université Denis Diderot - Paris VIIFaculté de Pharmacie
4 avenue de l'Observatoire
75006 PARIS,FR
| | - Dominique Crete
- Neuropsychopharmacologie des addictions. Vulnérabilité et variabilité expérimentale et clinique
CNRS : UMR7157 INSERM : U705 IFR71Université René Descartes - Paris V Université Denis Diderot - Paris VIIFaculté de Pharmacie
4 avenue de l'Observatoire
75006 PARIS,FR
| | - Corinne Canestrelli
- Neuropsychopharmacologie des addictions. Vulnérabilité et variabilité expérimentale et clinique
CNRS : UMR7157 INSERM : U705 IFR71Université René Descartes - Paris V Université Denis Diderot - Paris VIIFaculté de Pharmacie
4 avenue de l'Observatoire
75006 PARIS,FR
| | - Florence Noble
- Neuropsychopharmacologie des addictions. Vulnérabilité et variabilité expérimentale et clinique
CNRS : UMR7157 INSERM : U705 IFR71Université René Descartes - Paris V Université Denis Diderot - Paris VIIFaculté de Pharmacie
4 avenue de l'Observatoire
75006 PARIS,FR
| | - Cynthia Marie-Claire
- Neuropsychopharmacologie des addictions. Vulnérabilité et variabilité expérimentale et clinique
CNRS : UMR7157 INSERM : U705 IFR71Université René Descartes - Paris V Université Denis Diderot - Paris VIIFaculté de Pharmacie
4 avenue de l'Observatoire
75006 PARIS,FR
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de Saint Aubain Somerhausen N, Gomez Galdon M, Bouffioux B, Courtin C, Theunis A, Vogeleer MN, Myant N. Clear cell 'sugar' tumor (PEComa) of the skin: a case report. J Cutan Pathol 2005; 32:441-4. [PMID: 15953380 DOI: 10.1111/j.0303-6987.2005.00347.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [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: 01/15/2023]
Abstract
The so-called perivascular epithelioid cell neoplasm (PEComa) family includes angiomyolipoma, clear cell 'sugar' tumor (CCST), lymphangioleiomyomatosis, and clear cell myomelanocytic tumor (CCMMT). These rare tumors are characterized by the co-expression of melanocytic and muscle markers. They have been recognized in an increasing number of sites but currently only one case of PEComa, of the CCMMT subtype, has been reported in the skin in abstract form. We provide the clinicopathologic description of a case of extrapulmonary CCST located in the dermis and superficial subcutis of the thigh of a 60-year-old female. The lesion was composed of nests of epithelioid and spindle cells with abundant clear to granular cytoplasm and distinct cell borders. The tumor showed strong and diffuse immunoreactivity with HMB-45. Scattered cells expressed desmin and h-caldesmon. Antibodies to S-100 protein, melan-A, cytokeratins, and smooth muscle actin were negative. This first case of cutaneous PEComa of the CCST type expands the differential diagnosis of clear cell/granular cell tumors of the skin.
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Abstract
It has been previously suggested that morphine can regulate the expression and function of some proteins of the cytoskeleton. In the present study, we used real-time quantitative polymerase chain reaction to examine the effects of chronic morphine administration, in rat striatum, on 14 proteins involved in microtubule polymerization and stabilization, intracellular trafficking, and serving as markers of neuronal growth and degeneration. Chronic morphine treatment led to modulation of the mRNA level of seven of the 14 genes tested. Glial fibrillary acidic protein (Gfap) and activity-regulated cytoskeleton-associated protein (Arc) mRNA were upregulated, while growth associated protein (Gap43), clathrin heavy chain (Cltc), alpha-tubulin, Tau, and stathmin were downregulated. In order to determine if the regulation of an mRNA correlates with a modulation of the expression of the corresponding protein, immunoblot analyses were performed. With the exception of Gap43, the levels of Cltc, Gfap, Tau, stathmin, and alpha-tubulin proteins were found to be in good agreement with those from mRNA quantification. These results demonstrate that neuroadaptation to chronic morphine administration in rat striatum implies modifications of the expression pattern of several genes and proteins of the cytoskeleton and cytoskeleton-associated components.
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Affiliation(s)
- Cynthia Marie-Claire
- Departement de Pharmacochimie Moleculaire et Structurale, Universite Rene Descartes-Paris V, Paris, France.
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Marie-Claire C, Laurendeau I, Canestrelli C, Courtin C, Vidaud M, Roques B, Noble F. Fos but not Cart (cocaine and amphetamine regulated transcript) is overexpressed by several drugs of abuse: a comparative study using real-time quantitative polymerase chain reaction in rat brain. Neurosci Lett 2003; 345:77-80. [PMID: 12821175 DOI: 10.1016/s0304-3940(03)00307-0] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.6] [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: 11/22/2022]
Abstract
It has been reported that cocaine and amphetamine-regulated transcript (Cart) peptides can increase locomotor activity and produce a conditioned place preference. To establish whether or not Cart can be consider as a valuable marker of addiction we performed a comparative study of the expression of Cart and Fos genes by several drugs of abuse. This was achieved using real-time quantitative polymerase chain reaction in four rat brain structures: prefrontal cortex, caudate putamen, nucleus accumbens and hippocampus. As expected, a significant induction of the immediate early gene Fos was observed after acute administration of morphine, cocaine, 3, 4-methylenedioxymethamphetamine and Delta(9)-Tetrahydrocannabinol. On the contrary none of these drugs was able to produce a significant change in Cart mRNA levels demonstrating that the expression of this gene is not modulated by drugs of abuse in these brain structures.
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Affiliation(s)
- Cynthia Marie-Claire
- Departement de Pharmacochimie Moleculaire et Structurale, INSERM U266, CNRS FRE 2463, Universite René Descartes-Paris V, 4 Avenue de l'Observatoire, 75270 Paris Cedex 06, France
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Courtin C. The impact of sign language on the cognitive development of deaf children: the case of theories of mind. J Deaf Stud Deaf Educ 2000; 5:266-276. [PMID: 15454505 DOI: 10.1093/deafed/5.3.266] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The ability to attribute false beliefs (i.e., demonstrate theory of mind) by 155 deaf children between 5 and 8 years of age was compared to that of 39 hearing children ages 4 to 6. The hypotheses under investigation were (1) that linguistic features of sign language could promote the development of theories of mind and (2) that early exposure to language would allow an easier access to these theories. Deaf children were grouped according to their communication mode and the hearing status of their parents. The results obtained in three false belief tasks supported the hypotheses: effective representational abilities were demonstrated by deaf children of deaf parents, whereas those born to hearing parents appeared delayed in that regard, with differences according to their communication mode.
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Affiliation(s)
- C Courtin
- Laboratoire Cognition et Communication, Université Paris V, 46, rue Saint-Jacques, 75005 Paris, France
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Abstract
BACKGROUND AND PURPOSE C-reactive protein (CRP) is a useful prognostic factor in coronary heart disease. It has not been previously studied in acute cerebro-vascular events, which was the topic of the present study. METHODS Patients admitted to the hospital for an acute cerebro-vascular event were prospectively investigated. C-reactive protein was determined nephelometrically. Infection or inflammation were excluded clinically and with an erythrocyte sedimentation rate <30 mm/h. Computed tomography or nuclear magnetic resonance imaging of the brain was performed. RESULTS According to initial brain imaging and the clinical course the 138 patients were divided into five groups: 20 with transient ischemic attack, 20 with reversible neurological deficit lasting less than 2 weeks, 61 with completed stroke and restitution, 16 with stroke without restitution and 21 with cerebral hemorrhage. Median CRP values (range) were 3.2 (2.4-13.5), 3.3 (2.4-39.4), 4.2 (2.4-73. 4), 3.4 (3.2-44.0) and 3.5 (2.4-104.0 mg/l), respectively with no significant differences between groups in a non-parametric test (Kruskal-Wallis). Risk factors for vascular disease in general and stroke in particular had no visible influence on CRP levels. No relationship was found between time interval since onset of symptoms and CRP measurement, suggesting that an acute cerebro-vascular event has little influence on CRP values. CONCLUSION CRP is not a useful marker to predict the outcome of an acute cerebro-vascular event on hospital admission. This is in contrast to acute coronary events.
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Affiliation(s)
- C R Canova
- Internal Medicine, Kantonsspital, CH-7000, Chur, Switzerland
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34
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Fresnel A, Jarno P, Burgun A, Delamarre D, Denier P, Cleret M, Courtin C, Seka LP, Pouliquen B, Cléran L, Riou C, Leduff F, Lesaux H, Duvauferrier R, Le Beux P. A first evaluation of a pedagogical network for medical students at the University Hospital of Rennes. Med Inform (Lond) 1998; 23:253-64. [PMID: 9785328 DOI: 10.3109/14639239809001406] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
A pedagogical network has been developed at University Hospital of Rennes from 1996. The challenge is to give medical information and informatics tools to all medical students in the clinical wards of the University Hospital. At first, nine wards were connected to the medical school server which is linked to the Internet. Client software electronic mail and WWW Netscape on Macintosh computers. Sever software is set up on Unix SUN providing a local homepage with selected pedagogical resources. These documents are stored in a DBMS database ORACLE and queries can be provided by specialty, authors or disease. The students can access a set of interactive teaching programs or electronic textbooks and can explore the Internet through the library information system and search engines. The teachers can send URL and indexation of pedagogical documents and can produce clinical cases: the database updating will be done by the users. This experience of using Web tools generated enthusiasm when we first introduced it to students. The evaluation shows that if the students can use this training early on, they will adapt the resources of the Internet to their own needs.
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Affiliation(s)
- A Fresnel
- Laboratoire d'Informatique Médicale, Faculté de Médecine, Rennes, France
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35
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Abstract
A 45-year-old man developed a painful and rapidly progressive sensory-motor polyneuropathy associated with confusion and convulsions. This resulted in hypoventilation and led to respiratory failure and coma. A rapid and diffuse alopecia occurred after 3 weeks in the intensive care unit. Examination of hair roots under polarized light detected dystrophic anagen hairs with dark bands caused by empty spaces in the disorganized cortex. These dark zones were originally reported in patients with thallium poisoning and a toxicological investigation confirmed thallium exposure. The classical systemic symptoms and the various dermatological signs are reviewed, and the origins of contamination and physiopathology discussed.
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Affiliation(s)
- I Tromme
- Department of Dermatology, Clinique Saint Pierre, Ottignies, Belgium
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36
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Denier P, Le Beux P, Delamarre D, Fresnel A, Cleret M, Courtin C, Seka LP, Pouliquen B, Cleran L, Riou C, Burgun A, Jarno P, Leduff F, Lesaux H, Duvauferrier R. A network of web multimedia medical information servers for a medical school and university hospital. Int J Med Inform 1997; 46:41-51. [PMID: 9476154 DOI: 10.1016/s1386-5056(97)00047-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [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: 02/06/2023]
Abstract
Modern medicine requires a rapid access to information including clinical data from medical records, bibliographic databases, knowledge bases and nomenclature databases. This is especially true for University Hospitals and Medical Schools for training as well as for fundamental and clinical research for diagnosis and therapeutic purposes. This implies the development of local, national and international cooperation which can be enhanced via the use and access to computer networks such as Internet. The development of professional cooperative networks goes with the development of the telecommunication and computer networks and our project is to make these new tools and technologies accessible to the medical students both during the teaching time in Medical School and during the training periods at the University Hospital. We have developed a local area network which communicates between the School of Medicine and the Hospital which takes advantage of the new Web client-server technology both internally (Intranet) and externally by access to the National Research Network (RENATER in France) connected to the Internet network. The address of our public web server is http:(/)/www.med.univ-rennesl.fr.
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Affiliation(s)
- P Denier
- Centre Hospitalier, Rennes, France
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37
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Abstract
The effects of sign language use on cognitive processes of second-generation deaf children were investigated through an intensional categorization task. A forced-choice paradigm was used to examine children's selections of schematic and categorical alternatives as associations to targets that differed in their related sign language characteristics. The results obtained from 48 deaf and hearing 6-year-olds suggest some differences in the categorization abilities and cognitive flexibility between the two groups of children. These differences appear to be explainable in terms of linguistic variables underlying French Sign Language.
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Courtin C, Séka LP, Cléran L, Le Beux P. W.W.W. cooperative multimedia interface in medicine. Stud Health Technol Inform 1996; 43 Pt A:38-42. [PMID: 10179577] [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: 02/11/2023]
Abstract
The World Wide Web is now the most used multimedia information system on Internet allowing, by means of Web browsers such as Netscape Navigator or Mosaic, distribution or consultation of hypermedia documents. Although the Web has appeared only recently, the growth of its use has generated the emergence of numerous information and knowledge bases in the medical field. We suggest to investigate extended functionalities in order to introduce cooperative activities in our medical information system. These new activities allow asynchronous exchange of records and synchronous cooperation for a better coordination of the work within and between hospitals.
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Affiliation(s)
- C Courtin
- Laboratoire d'Informatique Médicale, Faculté de Médecine, Université de Rennes 1, France
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Seka LP, Courtin C, Le Beux P. ADM-INDEX: an automated system for indexing and retrieval of medical texts. Stud Health Technol Inform 1996; 43 Pt A:406-10. [PMID: 10179583] [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: 02/11/2023]
Abstract
ADM-INDEX is a system for indexing and retrieval of Patients Discharge Summaries (PDSs) by using linguistic methods (morphologic, syntaxic and semantic processing). The ADM-INDEX knowledge base is a restructuring of a diagnostic aid knowledge base (ADM) in order to allow the linguistic analysis of medical texts. The ADM system is a comprehensive medical knowledge base which has been developed since 1972 at the University Hospital of Rennes and which has been the first professional videotex medical diagnostic aid in France. After linguistic analysis, ADM-INDEX build the index table with thesaurus wording, medical words, concepts and phrases, unknown words contained in each PDS. The benefit of using those different elements is to improve information retrieval. Although our system is constructed with the ADM dictionary, it can be easily applied to other medical nomenclature or thesaurus. In this paper, we present on the one hand the ADM-INDEX knowledge base which is constituted by rules, a dictionary and a thesaurus, and on the other hand, the process of indexing and retrieval information.
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Affiliation(s)
- L P Seka
- Laboratoire d'Informatique Médicale, Faculté de Médecine, Université de Rennes I, France
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