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1. ATiPreTA: AN Analytical Model for Time–Dependent Prediction of Terrorist Attacks

Author

Kebir Oussama, Nouaouri Issam, Rejeb Lilia, and Ben Said Lamjed

Subjects
terrorist attacks, attack classification, mathematical modeling, dynamic behavior simulation, damage prediction, Mathematics, QA1-939, Electronic computers. Computer science, QA75.5-76.95
Abstract

In counter-terrorism actions, commanders are confronted with difficult and important challenges. Their decision-making processes follow military instructions and must consider the humanitarian aspect of the mission. In this paper, we aim to respond to the question: What would the casualties be if governmental forces reacted in a given way with given resources? Within a similar context, decision-support systems are required due to the variety and complexity of modern attacks as well as the enormous quantity of information that must be treated in real time. The majority of mathematical models are not suitable for real-time events. Therefore, we propose an analytical model for a time-dependent prediction of terrorist attacks (ATiPreTA). The output of our model is consistent with casualty data from two important terrorist events known in Tunisia: Bardo and Sousse attacks. The sensitivity and experimental analyses show that the results are significant. Some operational insights are also discussed.

Published
2022
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3. Mapping genomic loci implicates genes and synaptic biology in schizophrenia

Author

Trubetskoy, Vassily, Pardiñas, Antonio F., Qi, Ting, Panagiotaropoulou, Georgia, Awasthi, Swapnil, Bigdeli, Tim B., Bryois, Julien, Chen, Chia-Yen, Dennison, Charlotte A., Hall, Lynsey S., Lam, Max, Watanabe, Kyoko, Frei, Oleksandr, Ge, Tian, Harwood, Janet C., Koopmans, Frank, Magnusson, Sigurdur, Richards, Alexander L., Sidorenko, Julia, Wu, Yang, Zeng, Jian, Grove, Jakob, Kim, Minsoo, Li, Zhiqiang, Voloudakis, Georgios, Zhang, Wen, Adams, Mark, Agartz, Ingrid, Atkinson, Elizabeth G., Agerbo, Esben, Al Eissa, Mariam, Albus, Margot, Alexander, Madeline, Alizadeh, Behrooz Z., Alptekin, Köksal, Als, Thomas D., Amin, Farooq, Arolt, Volker, Arrojo, Manuel, Athanasiu, Lavinia, Azevedo, Maria Helena, Bacanu, Silviu A., Bass, Nicholas J., Begemann, Martin, Belliveau, Richard A., Bene, Judit, Benyamin, Beben, Bergen, Sarah E., Blasi, Giuseppe, Bobes, Julio, Bonassi, Stefano, Braun, Alice, Bressan, Rodrigo Affonseca, Bromet, Evelyn J., Bruggeman, Richard, Buckley, Peter F., Buckner, Randy L., Bybjerg-Grauholm, Jonas, Cahn, Wiepke, Cairns, Murray J., Calkins, Monica E., Carr, Vaughan J., Castle, David, Catts, Stanley V., Chambert, Kimberley D., Chan, Raymond C. K., Chaumette, Boris, Cheng, Wei, Cheung, Eric F. C., Chong, Siow Ann, Cohen, David, Consoli, Angèle, Cordeiro, Quirino, Costas, Javier, Curtis, Charles, Davidson, Michael, Davis, Kenneth L., de Haan, Lieuwe, Degenhardt, Franziska, DeLisi, Lynn E., Demontis, Ditte, Dickerson, Faith, Dikeos, Dimitris, Dinan, Timothy, Djurovic, Srdjan, Duan, Jubao, Ducci, Giuseppe, Dudbridge, Frank, Eriksson, Johan G., Fañanás, Lourdes, Faraone, Stephen V., Fiorentino, Alessia, Forstner, Andreas, Frank, Josef, Freimer, Nelson B., Fromer, Menachem, Frustaci, Alessandra, Gadelha, Ary, Genovese, Giulio, Gershon, Elliot S., Giannitelli, Marianna, Giegling, Ina, Giusti-Rodríguez, Paola, Godard, Stephanie, Goldstein, Jacqueline I., González Peñas, Javier, González-Pinto, Ana, Gopal, Srihari, Gratten, Jacob, Green, Michael F., Greenwood, Tiffany A., Guillin, Olivier, Gülöksüz, Sinan, Gur, Raquel E., Gur, Ruben C., Gutiérrez, Blanca, Hahn, Eric, Hakonarson, Hakon, Haroutunian, Vahram, Hartmann, Annette M., Harvey, Carol, Hayward, Caroline, Henskens, Frans A., Herms, Stefan, Hoffmann, Per, Howrigan, Daniel P., Ikeda, Masashi, Iyegbe, Conrad, Joa, Inge, Julià, Antonio, Kähler, Anna K., Kam-Thong, Tony, Kamatani, Yoichiro, Karachanak-Yankova, Sena, Kebir, Oussama, Keller, Matthew C., Kelly, Brian J., Khrunin, Andrey, Kim, Sung-Wan, Klovins, Janis, Kondratiev, Nikolay, Konte, Bettina, Kraft, Julia, Kubo, Michiaki, Kučinskas, Vaidutis, Kučinskiene, Zita Ausrele, Kusumawardhani, Agung, Kuzelova-Ptackova, Hana, Landi, Stefano, Lazzeroni, Laura C., Lee, Phil H., Legge, Sophie E., Lehrer, Douglas S., Lencer, Rebecca, Lerer, Bernard, Li, Miaoxin, Lieberman, Jeffrey, Light, Gregory A., Limborska, Svetlana, Liu, Chih-Min, Lönnqvist, Jouko, Loughland, Carmel M., Lubinski, Jan, Luykx, Jurjen J., Lynham, Amy, Macek, Jr, Milan, Mackinnon, Andrew, Magnusson, Patrik K. E., Maher, Brion S., Maier, Wolfgang, Malaspina, Dolores, Mallet, Jacques, Marder, Stephen R., Marsal, Sara, Martin, Alicia R., Martorell, Lourdes, Mattheisen, Manuel, McCarley, Robert W., McDonald, Colm, McGrath, John J., Medeiros, Helena, Meier, Sandra, Melegh, Bela, Melle, Ingrid, Mesholam-Gately, Raquelle I., Metspalu, Andres, Michie, Patricia T., Milani, Lili, Milanova, Vihra, Mitjans, Marina, Molden, Espen, Molina, Esther, Molto, María Dolores, Mondelli, Valeria, Moreno, Carmen, Morley, Christopher P., Muntané, Gerard, Murphy, Kieran C., Myin-Germeys, Inez, Nenadić, Igor, Nestadt, Gerald, Nikitina-Zake, Liene, Noto, Cristiano, Nuechterlein, Keith H., O’Brien, Niamh Louise, O’Neill, F. Anthony, Oh, Sang-Yun, Olincy, Ann, Ota, Vanessa Kiyomi, Pantelis, Christos, Papadimitriou, George N., Parellada, Mara, Paunio, Tiina, Pellegrino, Renata, Periyasamy, Sathish, Perkins, Diana O., Pfuhlmann, Bruno, Pietiläinen, Olli, Pimm, Jonathan, Porteous, David, Powell, John, Quattrone, Diego, Quested, Digby, Radant, Allen D., Rampino, Antonio, Rapaport, Mark H., Rautanen, Anna, Reichenberg, Abraham, Roe, Cheryl, Roffman, Joshua L., Roth, Julian, Rothermundt, Matthias, Rutten, Bart P. F., Saker-Delye, Safaa, Salomaa, Veikko, Sanjuan, Julio, Santoro, Marcos Leite, Savitz, Adam, Schall, Ulrich, Scott, Rodney J., Seidman, Larry J., Sharp, Sally Isabel, Shi, Jianxin, Siever, Larry J., Sigurdsson, Engilbert, Sim, Kang, Skarabis, Nora, Slominsky, Petr, So, Hon-Cheong, Sobell, Janet L., Söderman, Erik, Stain, Helen J., Steen, Nils Eiel, Steixner-Kumar, Agnes A., Stögmann, Elisabeth, Stone, William S., Straub, Richard E., Streit, Fabian, Strengman, Eric, Stroup, T. Scott, Subramaniam, Mythily, Sugar, Catherine A., Suvisaari, Jaana, Svrakic, Dragan M., Swerdlow, Neal R., Szatkiewicz, Jin P., Ta, Thi Minh Tam, Takahashi, Atsushi, Terao, Chikashi, Thibaut, Florence, Toncheva, Draga, Tooney, Paul A., Torretta, Silvia, Tosato, Sarah, Tura, Gian Battista, Turetsky, Bruce I., Üçok, Alp, Vaaler, Arne, van Amelsvoort, Therese, van Winkel, Ruud, Veijola, Juha, Waddington, John, Walter, Henrik, Waterreus, Anna, Webb, Bradley T., Weiser, Mark, Williams, Nigel M., Witt, Stephanie H., Wormley, Brandon K., Wu, Jing Qin, Xu, Zhida, Yolken, Robert, Zai, Clement C., Zhou, Wei, Zhu, Feng, Zimprich, Fritz, Atbaşoğlu, Eşref Cem, Ayub, Muhammad, Benner, Christian, Bertolino, Alessandro, Black, Donald W., Bray, Nicholas J., Breen, Gerome, Buccola, Nancy G., Byerley, William F., Chen, Wei J., Cloninger, C. Robert, Crespo-Facorro, Benedicto, Donohoe, Gary, Freedman, Robert, Galletly, Cherrie, Gandal, Michael J., Gennarelli, Massimo, Hougaard, David M., Hwu, Hai-Gwo, Jablensky, Assen V., McCarroll, Steven A., Moran, Jennifer L., Mors, Ole, Mortensen, Preben B., Müller-Myhsok, Bertram, Neil, Amanda L., Nordentoft, Merete, Pato, Michele T., Petryshen, Tracey L., Pirinen, Matti, Pulver, Ann E., Schulze, Thomas G., Silverman, Jeremy M., Smoller, Jordan W., Stahl, Eli A., Tsuang, Debby W., Vilella, Elisabet, Wang, Shi-Heng, Xu, Shuhua, Adolfsson, Rolf, Arango, Celso, Baune, Bernhard T., Belangero, Sintia Iole, Børglum, Anders D., Braff, David, Bramon, Elvira, Buxbaum, Joseph D., Campion, Dominique, Cervilla, Jorge A., Cichon, Sven, Collier, David A., Corvin, Aiden, Curtis, David, Forti, Marta Di, Domenici, Enrico, Ehrenreich, Hannelore, Escott-Price, Valentina, Esko, Tõnu, Fanous, Ayman H., Gareeva, Anna, Gawlik, Micha, Gejman, Pablo V., Gill, Michael, Glatt, Stephen J., Golimbet, Vera, Hong, Kyung Sue, Hultman, Christina M., Hyman, Steven E., Iwata, Nakao, Jönsson, Erik G., Kahn, René S., Kennedy, James L., Khusnutdinova, Elza, Kirov, George, Knowles, James A., Krebs, Marie-Odile, Laurent-Levinson, Claudine, Lee, Jimmy, Lencz, Todd, Levinson, Douglas F., Li, Qingqin S., Liu, Jianjun, Malhotra, Anil K., Malhotra, Dheeraj, McIntosh, Andrew, McQuillin, Andrew, Menezes, Paulo R., Morgan, Vera A., Morris, Derek W., Mowry, Bryan J., Murray, Robin M., Nimgaonkar, Vishwajit, Nöthen, Markus M., Ophoff, Roel A., Paciga, Sara A., Palotie, Aarno, Pato, Carlos N., Qin, Shengying, Rietschel, Marcella, Riley, Brien P., Rivera, Margarita, Rujescu, Dan, Saka, Meram C., Sanders, Alan R., Schwab, Sibylle G., Serretti, Alessandro, Sham, Pak C., Shi, Yongyong, St Clair, David, Stefánsson, Hreinn, Stefansson, Kari, Tsuang, Ming T., van Os, Jim, Vawter, Marquis P., Weinberger, Daniel R., Werge, Thomas, Wildenauer, Dieter B., Yu, Xin, Yue, Weihua, Holmans, Peter A., Pocklington, Andrew J., Roussos, Panos, Vassos, Evangelos, Verhage, Matthijs, Visscher, Peter M., Yang, Jian, Posthuma, Danielle, Andreassen, Ole A., Kendler, Kenneth S., Owen, Michael J., Wray, Naomi R., Daly, Mark J., Huang, Hailiang, Neale, Benjamin M., Sullivan, Patrick F., Ripke, Stephan, Walters, James T. R., and O’Donovan, Michael C.

Published
2022
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5. Genetic and neurodevelopmental markers in schizophrenia-spectrum disorders: analysis of the combined role of the Cannabinoid Receptor 1 gene (CNR1) and dermatoglyphics

Author

Guardiola-Ripoll, Maria, primary, Sotero-Moreno, Alejandro, additional, Chaumette, Boris, additional, Kebir, Oussama, additional, Hostalet, Noemi, additional, Almodovar-Paya, Carmen, additional, Moreira, Monica, additional, Giralt-Lopez, Maria, additional, Odile-Krebs, Marie, additional, and Fatjo-Vilas, Mar, additional

Published
2024
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6. Longitudinal MicroRNA Signature of Conversion to Psychosis.

Author

Iftimovici, Anton, He, Qin, Jiao, Chuan, Duchesnay, Edouard, Krebs, Marie-Odile, Kebir, Oussama, and Chaumette, Boris

Subjects
RISK assessment, GENOME-wide association studies, RESEARCH funding, MICRORNA, DESCRIPTIVE statistics, SCHIZOPHRENIA, HELP-seeking behavior, GENE expression, LONGITUDINAL method, GENETIC variation, RNA, STATISTICS, PSYCHOSES, MACHINE learning, BIOMARKERS, PATIENT aftercare, SEQUENCE analysis, COGNITION
Abstract

Background and Hypothesis The emergence of psychosis in ultra-high-risk subjects (UHR) is influenced by gene-environment interactions that rely on epigenetic mechanisms such as microRNAs. However, whether they can be relevant pathophysiological biomarkers of psychosis' onset remains unknown. Study Design We present a longitudinal study of microRNA expression, measured in plasma by high-throughput sequencing at baseline and follow-up, in a prospective cohort of 81 UHR, 35 of whom developed psychosis at follow-up (converters). We combined supervised machine learning and differential graph analysis to assess the relative weighted contribution of each microRNA variation to the difference in outcome and identify outcome-specific networks. We then applied univariate models to the resulting microRNA variations common to both strategies, to interpret them as a function of demographic and clinical covariates. Study Results We identified 207 microRNA variations that significantly contributed to the classification. The differential network analysis found 276 network-specific correlations of microRNA variations. The combination of both strategies identified 25 microRNAs, whose gene targets were overrepresented in cognition and schizophrenia genome-wide association studies findings. Interpretable univariate models further supported the relevance of miR-150-5p and miR-3191-5p variations in psychosis onset, independent of age, sex, cannabis use, and medication. Conclusions In this first longitudinal study of microRNA variation during conversion to psychosis, we combined 2 methodologically independent data-driven strategies to identify a dynamic epigenetic signature of the emergence of psychosis that is pathophysiologically relevant. [ABSTRACT FROM AUTHOR]

Published
2024
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9. Alpha-lipoic acid in the treatment of psychiatric and neurological disorders: a systematic review

Author

de Sousa, Caren Nádia Soares, da Silva Leite, Cláudio Manuel Gonçalves, da Silva Medeiros, Ingridy, Vasconcelos, Luna Costa, Cabral, Lucas Moraes, Patrocínio, Cláudio Felipe Vasconcelos, Patrocínio, Marianna Letícia Vasconcelos, Mouaffak, Fayçal, Kebir, Oussama, Macedo, Danielle, Patrocínio, Manoel Cláudio Azevedo, and Vasconcelos, Silvânia Maria Mendes

Published
2019
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19. Mapping genomic loci prioritises genes and implicates synaptic biology in schizophrenia

Author

Trubetskoy, Vassily, Pardinas, Antonio, Qi, Ting, Panagiotaropoulou, Georgia, Awasthi, Swapnil, Bigdeli, Tim B., Bryois, Julien, Chen, Chia-Yen, Dennison, Charlotte A., Hall, Lynsey, Lam, Max, Watanabe, Kyoto, Frei, Oleksandr, Ge, Tian, Harwood, Janet C., Koopmans, Frank, Magnusson, Sigurdur, Richards, Alexander L., Sidorenko, Julia, Wu, Yang, Zeng, Jian, Grove, Jakob, Kim, Minsoo, Li, Zhiqiang, Voloudakis, Georgios, Zhang, Wen, Adams, Mark, Agartz, Ingrid, Atkinson, Elizabeth G., Agerbo, Esben, Al Eissa, Mariam, Albus, Margot, Alexander, Madeline, Alizadeh, Behrooz Z., Alptekin, Köksal, Als, Thomas D., Amin, Farooq, Arolt, Volker, Arrojo, Manuel, Athanasiu, Lavinia, Azevedo, Maria Helena, Bacanu, Silviu A., Bass, Nicholas J., Begemann, Martin, Belliveau, Richard A., Bene, Judit, Benyamin, Beben, Bergen, Sarah E., Blasi, Giuseppe, Bobes, Julio, Bonassi, Stefano, Braun, Alice, Affonseca Bressan, Rodrigo, Bromet, Evelyn J., Bruggeman, Richard, Buckley, Peter F., Buckner, Randy L., Bybjerg-Grauholm, Jonas, Cahn, Wiepke, Cairns, Murray J., Calkins, Monica E., Carr, Vaughan J., Castle, David, Catts, Stanley V., Chambert, Kimberley D., Chan, Raymond C. K., Chaumette, Boris, Cheng, Wei, Cheung, Eric F. C., Chong, Siow Ann, Cohen, David, Consoli, Angele, Cordeiro, Quirino, Costas, Javier, Curtis, Charles, Davidson, Michael, Davis, Kenneth L., De Haan, Lieuwe, Degenhardt, Franziska, DeLisi, Lynn E., Demontis, Ditte, Dickerson, Faith, Dikeos, Dimitris, Dinan, Timothy, Djurovic, Srdjan, Duan, Jubao, Ducci, Giuseppe, Dudbridge, Frank, Eriksson, Johan G., Fananas, Lourdes, Faraone, Stephen V., Fiorentino, Alessia, Forstner, Andreas, Frank, Josef, Freimer, Nelson B., Fromer, Menachem, Frustaci, Alessandra, Gadelha, Ary, Genovese, Giulio, Gershon, Elliot S., Giannitelli, Marianna, Giegling, Ina, Giusti-Rodríguez, Paola, Godard, Stephanie, Goldstein, Jacqueline I., González Peñas, Javier, González-Pinto, Ana, Gopa, Srihari, Gratten, Jacob, Green, Michael F., Greenwood, Tiffany A., Guillin, Olivier, Gülöksüz, Sinan, Gur, Raquel E., Gur, Ruben C., Gutiérrez, Blanca, Hahn, Eric, Hakonarson, Hakon, Haroutunian, Vahram, Hartmann, Annette M., Harvey, Carol, Hayward, Caroline, Henskens, Frans A., Herms, Stefan, Hoffmann, Per, Howrigan, Daniel P., Ikeda, Masashi, Iyegbe, Conrad, Joa, Inge, Julià, Antonio, Kähler, Anna K., Kam-Thong, Tony, Kamatani, Yoichiro, Karachanak-Yankova, Sena, Kebir, Oussama, Keller, Matthew C., Kelly, Brian J., Khrunin, Andrey, Kim, Sung-Wan, Klovins, Janis, Kondratiev, Nikolay, Konte, Bettina, Kraft, Julia, Kubo, Michiaki, Kučinskas, Vaidutis, Ausrele Kučinskiene, Zita, Kusumawardhani, Agung, Kuzelov a-Ptackova, Hana, Land, Stefano, Lazzeroni, Laura C., Lee, Phil H., Legge, Sophie E., Lehrer, Douglas S., Lencer, Rebecca, Lerer, Bernard, Li, Miaoxin, Lieberman, Jeffrey, Light, Gregory A., Limborska, Svetlana, Liu, Chih-Min, Lönnqvist, Jouko, Loughland, Carmel M., Lubiski, Jan, Luykx, Jurjen J., Lynham, Amy, Macel Jr., Milan, Mackinnon, Andrew, Magnusson, Patrik K. E., Maher, Brion S., Maier, Wolfgang, Malaspina, Dolores, Mallet, Jacques, Marder, Stephen R., Marsal, Sara, Martin, Alicia R., Martorell, Lourdes, Mattheisen, Manuel, McCarley, Robert W., McDonald, Colm, McGrath, John J., Medeiros, Helena, Meier, Sandra, Melegh, Bela, Melle, Ingrid, Mesholam-Gately, Raquelle I., Metspalu, Andres, Michie, Patricia T., Milani, Lili, Milanova, Vihara, Mitjans, Marina, Molden, Espen, Molina, Esther, Molto, María Dolores, Mondelli, Valeria, Moreno, Carmen, Morley, Christopher P., Muntané, Gerard, Murphy, Kieran C., Myin-Germeys, Inez, Nenadić, Igor, Nestadt, Gerald, Nikitina-Zake, Liene, Noto, Cristiano, Neuchterlein, Keith H., O'Brien, Niamh Louise, O'Neill, F. Anthony., Oh, Sang-Yun, Olincy, Ann, Ota, Vanessa Kiyomi, Pantelis, Christos, Papadimitrou, George N., Paredella, Mara, Paurio, Tiina, Pellegrino, Renata, Periyasamy, Sathish, Perkins, Diana O., Pfuhlmann, Bruno, Pietilainen, Olli, Pimm, Jonathan, Porteous, David, Powell, John, Quattrone, Diego, Quested, Digby, Radant, Allen D., Rampino, Antonio, Rapaport, Mark H., Rautanen, Anna, Reichenberg, Abraham, Roe, Cheryl, Roffman, Joshua L., Roth, Julian, Rothermundt, Matthias, Rutten, Bart P. F., Saker-Delye, Safaa, Salomaa, Veiko, Sanjuan, Julio, Santoro, Marcos Leite, Savitz, Adam, Schall, Ulrich, Scott, Rodney J., Seidman, Larry J., Sharp, Sally Isabel, Shi, Jianxin, Sigurdsson, Engilbert, Sim, Kang, Skarabis, Nora, Slominsky, Petr, So, Hon-Cheong, Sobell, Janet L., Soderman, Erik, Stain, Helen J., Steen, Nils Eiel, Steixner-Kumar, Agnes, Stogmann, Elisabeth, Stone, William S., Straub, Richard E., Streit, Fabian, Stregman, Eric, Stroup, T. Scott, Subramaniam, Mythily, Sugar, Catherine A., Suvisaari, Jaana, Svrakic, Dragan M., Swerdlow, Neal R., Szatkiewicz, Jin P., Ta, Thi Minh Tam, and Takahashi, Atsushi

Abstract

Schizophrenia has a heritability of 60–80%1, much of which is attributable to common risk alleles. Here, in a two-stage genome-wide association study of up to 76,755 individuals with schizophrenia and 243,649 control individuals, we report common variant associations at 287 distinct genomic loci. Associations were concentrated in genes that are expressed in excitatory and inhibitory neurons of the central nervous system, but not in other tissues or cell types. Using fine-mapping and functional genomic data, we identify 120 genes (106 protein-coding) that are likely to underpin associations at some of these loci, including 16 genes with credible causal non-synonymous or untranslated region variation. We also implicate fundamental processes related to neuronal function, including synaptic organization, differentiation and transmission. Fine-mapped candidates were enriched for genes associated with rare disruptive coding variants in people with schizophrenia, including the glutamate receptor subunit GRIN2A and transcription factor SP4, and were also enriched for genes implicated by such variants in neurodevelopmental disorders. We identify biological processes relevant to schizophrenia pathophysiology; show convergence of common and rare variant associations in schizophrenia and neurodevelopmental disorders; and provide a resource of prioritized genes and variants to advance mechanistic studies.

Published
2022

20. Mapping genomic loci implicates genes and synaptic biology in schizophrenia

Author

Medical Research Council (UK), National Natural Science Foundation of China, Royal Society (UK), Chinese Academy of Sciences, Shanghai Science and Technology Committee, Research Council of Norway, European Commission, Fundação de Amparo à Pesquisa do Estado de São Paulo, Ministerio de Ciencia e Innovación (España), Instituto de Salud Carlos III, Comunidad de Madrid, Fundación Alicia Koplowitz, Fundación Alonso Lozano, Mental Health Research UK, Wellcome Trust, Brain and Behavior Research Foundation, NIHR Biomedical Research Centre (UK), University College London, Generalitat Valenciana, Trubetskoy, Vassily, Pardiñas, Antonio F., Qi, Ting, Panagiotaropoulou, Georgia, Awasthi, Swapnil, Bigdeli, Tim B., Bryois, Julien, Chen, Chia-Yen, Dennison, Charlotte A., Hall, Lynsey S., Lam, Max, Curtis, Charles, Nikitina-Zake, Liene, Davidson, Michael, Joa, Inge, Davis, Kenneth L., Yolken, Robert, Murray, Robin M., de Haan, Lieuwe, Legge, Sophie E., Serretti, Alessandro, van Os, Jim, Smoller, Jordan W., Agartz, Ingrid, Alizadeh, Behrooz Z., Degenhardt, Franziska, DeLisi, Lynn E., Demontis, Ditte, Dickerson, Faith, Zai, Clement C., Dikeos, Dimitris, Dinan, Timothy, Henskens, Frans A., Vaaler, Arne, Noto, Cristiano, Nimgaonkar, Vishwajit, Rautanen, Anna, Lehrer, Douglas S., Djurovic, Srdjan, Duan, Jubao, Julià, Antonio, Stahl, Eli A., Zhou, Wei, Vawter, Marquis P., Toncheva, Draga, Webb, Bradley T., Ducci, Giuseppe, Dudbridge, Frank, Eriksson, Johan G., Fañanas Saura, Lourdes, Goldstein, Jacqueline I., Faraone, Stephen V., Lencer, Rebecca, Moreno, Carmen, Bacanu, Silviu A., Fiorentino, Alessia, Calkins, Monica E., Mitjans, Marina, Forstner, Andreas, Nuechterlein, Keith H., Frank, Josef, Tsuang, Debby W., Freimer, Nelson B., Tooney, Paul A., Belangero, Sintia Iole, Weinberger, Daniel R., Fromer, Menachem, Ge,Tian, Adolfsson, Rolf, Hakonarson, Hakon, Zhu, Feng, Frustaci, Alessandra, Nöthen, Markus M., Gadelha, Ary, Genovese, Giulio, Gershon, Elliot S., Quattrone, Diego, Kähler, Anna K., Kam-Thong, Tony, van Amelsvoort, Therese, Vilella, Elisabet, Molden, Espen, O'Brien, Niamh Louise, Zimprich, Fritz, Kamatani, Yoichiro, Braun, Alice, Melegh, Bela, Pirinen, Matti, Karachanak-Yankova, Sena, Ophoff, Roel A., Kebir, Oussama, Lerer, Bernard, Nordentoft, Merete, Fanous, Ayman H., Reichenberg, Abraham, Li, Miaoxin, Periyasamy, Sathish, Lieberman, Jeffrey, Werge, Thomas, Light, Gregory A., Limborska, Svetlana, Tosato, Sarah, Liu, Chih-Min, Olincy, Ann, Magnusson, Sigurdur, Gareeva, Anna, Bressan, Rodrigo Affonseca, Lönnqvist, Jouko, Roe, Cheryl, Cheng, Wei, Athanasiu, Lavinia, Gutiérrez, Blanca, Harvey, Carol, Loughland, Carmel M., Lubinski, Jan, Luykx, Jurjen J., Lynham, Amy, Gawlik, Micha, Macek, Milan, Mackinnon, Andrew, Buxbaum, Joseph D., Tura, Gian Battista, Bromet, Evelyn J., Atbaşoğlu, Eşref Cem, Roffman, Joshua L., Magnusson, Patrik K. E., Maher, Brion S., Ota, Vanessa Kiyomi, Paciga, Sara A., Gejman, Pablo V., Arango, Celso, Forti, Marta Di, Maier, Wolfgang, Richards, Alexander L., Malaspina, Dolores, Mallet, Jacques, Metspalu, Andres, Marder, Stephen R., Li, Zhiqiang, Takahashi, Atsushi, Marsal, Sara, Kučinskiene, Zita Ausrele, Suvisaari, Jaana, Martin, Alicia R., Turetsky, Bruce I., Martorell, Lourdes, Palotie, Aarno, Mattheisen, Manuel, Baune, Bernhard T., Saka, Meram C., McCarley, Robert W., Giusti-Rodríguez, Paola, Riley, Brien P., Murphy, Kieran C., Gill, Michael, McDonald, Colm, Bruggeman, Richard, McGrath, John J., Sidorenko, Julia, Medeiros, Helena, Pantelis, Christos, Grove, Jakob, Campion, Dominique, Pato, Carlos N., Svrakic, Dragan M., Üçok, Alp, Glatt, Stephen J., Papadimitriou, George N., Khrunin, Andrey, Straub, Richard E., Parellada, Mara, Buckley, Peter F., Paunio, Tiina, Roth, Julian, Morgan, Vera A., Wildenauer, Dieter B., Ayub, Muhammad, Rothermundt, Matthias, Weiser, Mark, Rutten, Bart P. F., Saker-Delye, Safaa, Salomaa, Veikko, Børglum, Anders D., Sanjuán, Julio, van Winkel, Ruud, González Peñas, Javier, Yu, Xin, Kim, Sung-Wan, Santoro, Marcos Leite, Benner, Christian, Ikeda, Masashi, Morley, Christopher P., Zeng, Jian, Savitz, Adam, Schall, Ulrich, Scott, Rodney J., Voloudakis, Georgios, Yue, Weihua, Seidman, Larry J., Sharp, Sally Isabel, Alptekin, Köksal, Klovins, Janis, Amin, Farooq, Bertolino, Alessandro, Shi, Jianxin, Siever, Larry J., Atkinson, Elizabeth G., Buckner, Randy L., Holmans, Peter A., Rivera, Margarita, Sigurdsson, Engilbert, González-Pinto, Ana, Sim, Kang, Skarabis, Nora, Stroup, T Scott, Slominsky, Petr, Guillin, Olivier, Wang, Shi-Heng, So, Hon-Cheong, Quested, Digby, Sobell, Janet L., Braff, David, Zhang, Wen, Bybjerg-Grauholm, Jonas, Söderman, Erik, Rujescu, Dan, Chambert, Kimberley D., Stain, Helen J., Melle, Ingrid, Carr, Vaughan J, Pocklington, Andrew J., Steen, Nils Eiel, Harwood, Janet, Steixner-Kumar, Agnes A., Gopal, Srihari, Stögmann, Elisabeth, Veijola, Juha, Watanabe, Kyoko, Sham, Pak C., Cahn, Wiepke, Bramon, Elvira, Roussos, Panos, Waddington, John, Perkins, Diana O., Pato, Michele T., Walter, Henrik, Kondratiev, Nikolay, Waterreus, Anna, Al Eissa, Mariam, Bobes, Julio, Golimbet, Vera, Black, Donald W., Als, Thomas D., Bray, Nicholas J., Breen, Gerome, Buccola, Nancy G., Sanders, Alan R., Byerley, William F., Cervilla, Jorge A., Michie, Patricia T., Pfuhlmann, Bruno, Chen, Wei J., Hong, Kyung Sue, O'Neill, F Anthony, Terao, Chikashi, Green, Michael F., Cloninger, C. Robert, Crespo-Facorro, Benedicto, Donohoe, Gary, Gülöksüz, Sinan, Freedman, Robert, Albus, Margot, Hayward, Caroline, Pietiläinen, Olli, Herms, Stefan, Hultman, Christina M., Galletly, Cherrie, Gandal, Michael J., Hahn, Eric, Konte, Bettina, Castle, David, Gennarelli, Massimo, Milani, Lili, Hougaard, David M., Hwu, Hai-Gwo, Pulver, Ann E., Jablensky, Assen V., Molina, Esther, Qin, Shengying, McCarroll, Steven A., Moran, Jennifer L., Azevedo, Maria Helena, Gur, Rachel E., Kraft, Julia, Mors, Ole, Catts, Stanley V., Lazzeroni, Laura C., Mortensen, Preben B., Streit, Fabian, Kusumawardhani, Agung, Alexander, Madeline, Godard, Stephanie, Müller-Myhsok, Bertram, Milanova, Vihra, Neil, Amanda L., Cichon, Sven, Giannitelli, Marianna, Cheung, Eric F. C., Kubo, Michiaki, Schwab, Sibylle G., Collier, David A., Williams, Nigel M., Morris, Derek W., Corvin, Aiden, Pimm, Jonathan, Curtis, David, Haroutunian, Vahram, Keller, Matthew C., Vassos, Evangelos, Hyman, Steven E., Iwata, Nakao, Jönsson, Erik G., Kahn, René S., Chan, Raymond C. K., Kennedy, James L., Shi, Yongyong, Adams, Mark, Witt, Stephanie H., Khusnutdinova, Elza, Verhage, Matthijs, Xu, Shuhua, Wu, Yang, Kirov, George, Arolt, Volker, Knowles, James A., Moltó, Maria Dolores, Krebs, Marie-Odile, Hartmann, Annette M., Nestadt, Gerald, Wormley, Brandon K., Bass, Nicholas J., Laurent-Levinson, Claudine, Lee, Jimmy, Muntané, Gerard, Porteous, David, Kuzelova-Ptackova, Hana, Lencz, Todd, Subramaniam, Mythily, Levinson, Douglas F., Li, Qingqin S., Liu, Jianjun, Swerdlow, Neal R., Cairns, Murray J., Malhotra, Anil K., Malhotra, Dheeraj, Iyegbe, Conrad, Mondelli, Valeria, Kim, Minsoo, Arrojo, Manuel, Landi, Stefano, McIntosh, Andrew M., Petryshen, Tracey L., Radant, Allen D., Frei, Oleksandr, Mesholam-Gately, Raquelle I., McQuillin, Andrew, Sugar, Catherine A., Menezes, Paulo Rossi, St Clair, David, Meier, Sandra, Powell, John, Chaumette, Boris, Stefansson, Hreinn, Domenici, Enrico, Bonassi, Stefano, Stefánsson, Kári, Wu, Jing Qin, Tsuang, Ming T., Myin-Germeys, Inez, Pellegrino, Renata, Visscher, Peter M., Yang, Jian, Posthuma, Danielle, Andreassen, Ole A., Koopmans, Frank, Kendler, Kenneth S., Chong, Siow Ann, Gur, Ruben C., Ehrenreich, Hannelore, Owen, Michael J., Rietschel, Marcella, Gratten, Jacob, Wray, Naomi R., Hoffmann, Per, Daly, Mark J., Szatkiewicz, Jin P., Huang, Hailiang, Nenadić, Igor, Torretta, Silvia, Escott-Price, Valentina, Neale, Benjamin M., Begemann, Martin, Thibaut, Florence, Agerbo, Esben, Rampino, Antonio, Sullivan, Patrick F., Schulze, Thomas G., Ripke, Stephan, Walters, James T. R., O'Donovan, Michael C., Kučinskas, Vaidutis, Belliveau, Richard A., Bene, Judit, Oh, Sang-Yun, Ta, Thi Minh Tam, Greenwood, Tiffany A., Howrigan, Daniel P., Rapaport, Mark H., Benyamin, Beben, Mowry, Bryan J., Giegling, Ina, Strengman, Eric, Bergen, Sarah E., Silverman, Jeremy M., Blasi, Giuseppe, Cohen, David, Stone, William S., Xu, Zhida, Lee, Phil H., Consoli, Angèle, Kelly, Brian J.., Cordeiro, Quirino, Esko, Tõnu, Costas, Javier, Medical Research Council (UK), National Natural Science Foundation of China, Royal Society (UK), Chinese Academy of Sciences, Shanghai Science and Technology Committee, Research Council of Norway, European Commission, Fundação de Amparo à Pesquisa do Estado de São Paulo, Ministerio de Ciencia e Innovación (España), Instituto de Salud Carlos III, Comunidad de Madrid, Fundación Alicia Koplowitz, Fundación Alonso Lozano, Mental Health Research UK, Wellcome Trust, Brain and Behavior Research Foundation, NIHR Biomedical Research Centre (UK), University College London, Generalitat Valenciana, Trubetskoy, Vassily, Pardiñas, Antonio F., Qi, Ting, Panagiotaropoulou, Georgia, Awasthi, Swapnil, Bigdeli, Tim B., Bryois, Julien, Chen, Chia-Yen, Dennison, Charlotte A., Hall, Lynsey S., Lam, Max, Curtis, Charles, Nikitina-Zake, Liene, Davidson, Michael, Joa, Inge, Davis, Kenneth L., Yolken, Robert, Murray, Robin M., de Haan, Lieuwe, Legge, Sophie E., Serretti, Alessandro, van Os, Jim, Smoller, Jordan W., Agartz, Ingrid, Alizadeh, Behrooz Z., Degenhardt, Franziska, DeLisi, Lynn E., Demontis, Ditte, Dickerson, Faith, Zai, Clement C., Dikeos, Dimitris, Dinan, Timothy, Henskens, Frans A., Vaaler, Arne, Noto, Cristiano, Nimgaonkar, Vishwajit, Rautanen, Anna, Lehrer, Douglas S., Djurovic, Srdjan, Duan, Jubao, Julià, Antonio, Stahl, Eli A., Zhou, Wei, Vawter, Marquis P., Toncheva, Draga, Webb, Bradley T., Ducci, Giuseppe, Dudbridge, Frank, Eriksson, Johan G., Fañanas Saura, Lourdes, Goldstein, Jacqueline I., Faraone, Stephen V., Lencer, Rebecca, Moreno, Carmen, Bacanu, Silviu A., Fiorentino, Alessia, Calkins, Monica E., Mitjans, Marina, Forstner, Andreas, Nuechterlein, Keith H., Frank, Josef, Tsuang, Debby W., Freimer, Nelson B., Tooney, Paul A., Belangero, Sintia Iole, Weinberger, Daniel R., Fromer, Menachem, Ge,Tian, Adolfsson, Rolf, Hakonarson, Hakon, Zhu, Feng, Frustaci, Alessandra, Nöthen, Markus M., Gadelha, Ary, Genovese, Giulio, Gershon, Elliot S., Quattrone, Diego, Kähler, Anna K., Kam-Thong, Tony, van Amelsvoort, Therese, Vilella, Elisabet, Molden, Espen, O'Brien, Niamh Louise, Zimprich, Fritz, Kamatani, Yoichiro, Braun, Alice, Melegh, Bela, Pirinen, Matti, Karachanak-Yankova, Sena, Ophoff, Roel A., Kebir, Oussama, Lerer, Bernard, Nordentoft, Merete, Fanous, Ayman H., Reichenberg, Abraham, Li, Miaoxin, Periyasamy, Sathish, Lieberman, Jeffrey, Werge, Thomas, Light, Gregory A., Limborska, Svetlana, Tosato, Sarah, Liu, Chih-Min, Olincy, Ann, Magnusson, Sigurdur, Gareeva, Anna, Bressan, Rodrigo Affonseca, Lönnqvist, Jouko, Roe, Cheryl, Cheng, Wei, Athanasiu, Lavinia, Gutiérrez, Blanca, Harvey, Carol, Loughland, Carmel M., Lubinski, Jan, Luykx, Jurjen J., Lynham, Amy, Gawlik, Micha, Macek, Milan, Mackinnon, Andrew, Buxbaum, Joseph D., Tura, Gian Battista, Bromet, Evelyn J., Atbaşoğlu, Eşref Cem, Roffman, Joshua L., Magnusson, Patrik K. E., Maher, Brion S., Ota, Vanessa Kiyomi, Paciga, Sara A., Gejman, Pablo V., Arango, Celso, Forti, Marta Di, Maier, Wolfgang, Richards, Alexander L., Malaspina, Dolores, Mallet, Jacques, Metspalu, Andres, Marder, Stephen R., Li, Zhiqiang, Takahashi, Atsushi, Marsal, Sara, Kučinskiene, Zita Ausrele, Suvisaari, Jaana, Martin, Alicia R., Turetsky, Bruce I., Martorell, Lourdes, Palotie, Aarno, Mattheisen, Manuel, Baune, Bernhard T., Saka, Meram C., McCarley, Robert W., Giusti-Rodríguez, Paola, Riley, Brien P., Murphy, Kieran C., Gill, Michael, McDonald, Colm, Bruggeman, Richard, McGrath, John J., Sidorenko, Julia, Medeiros, Helena, Pantelis, Christos, Grove, Jakob, Campion, Dominique, Pato, Carlos N., Svrakic, Dragan M., Üçok, Alp, Glatt, Stephen J., Papadimitriou, George N., Khrunin, Andrey, Straub, Richard E., Parellada, Mara, Buckley, Peter F., Paunio, Tiina, Roth, Julian, Morgan, Vera A., Wildenauer, Dieter B., Ayub, Muhammad, Rothermundt, Matthias, Weiser, Mark, Rutten, Bart P. F., Saker-Delye, Safaa, Salomaa, Veikko, Børglum, Anders D., Sanjuán, Julio, van Winkel, Ruud, González Peñas, Javier, Yu, Xin, Kim, Sung-Wan, Santoro, Marcos Leite, Benner, Christian, Ikeda, Masashi, Morley, Christopher P., Zeng, Jian, Savitz, Adam, Schall, Ulrich, Scott, Rodney J., Voloudakis, Georgios, Yue, Weihua, Seidman, Larry J., Sharp, Sally Isabel, Alptekin, Köksal, Klovins, Janis, Amin, Farooq, Bertolino, Alessandro, Shi, Jianxin, Siever, Larry J., Atkinson, Elizabeth G., Buckner, Randy L., Holmans, Peter A., Rivera, Margarita, Sigurdsson, Engilbert, González-Pinto, Ana, Sim, Kang, Skarabis, Nora, Stroup, T Scott, Slominsky, Petr, Guillin, Olivier, Wang, Shi-Heng, So, Hon-Cheong, Quested, Digby, Sobell, Janet L., Braff, David, Zhang, Wen, Bybjerg-Grauholm, Jonas, Söderman, Erik, Rujescu, Dan, Chambert, Kimberley D., Stain, Helen J., Melle, Ingrid, Carr, Vaughan J, Pocklington, Andrew J., Steen, Nils Eiel, Harwood, Janet, Steixner-Kumar, Agnes A., Gopal, Srihari, Stögmann, Elisabeth, Veijola, Juha, Watanabe, Kyoko, Sham, Pak C., Cahn, Wiepke, Bramon, Elvira, Roussos, Panos, Waddington, John, Perkins, Diana O., Pato, Michele T., Walter, Henrik, Kondratiev, Nikolay, Waterreus, Anna, Al Eissa, Mariam, Bobes, Julio, Golimbet, Vera, Black, Donald W., Als, Thomas D., Bray, Nicholas J., Breen, Gerome, Buccola, Nancy G., Sanders, Alan R., Byerley, William F., Cervilla, Jorge A., Michie, Patricia T., Pfuhlmann, Bruno, Chen, Wei J., Hong, Kyung Sue, O'Neill, F Anthony, Terao, Chikashi, Green, Michael F., Cloninger, C. Robert, Crespo-Facorro, Benedicto, Donohoe, Gary, Gülöksüz, Sinan, Freedman, Robert, Albus, Margot, Hayward, Caroline, Pietiläinen, Olli, Herms, Stefan, Hultman, Christina M., Galletly, Cherrie, Gandal, Michael J., Hahn, Eric, Konte, Bettina, Castle, David, Gennarelli, Massimo, Milani, Lili, Hougaard, David M., Hwu, Hai-Gwo, Pulver, Ann E., Jablensky, Assen V., Molina, Esther, Qin, Shengying, McCarroll, Steven A., Moran, Jennifer L., Azevedo, Maria Helena, Gur, Rachel E., Kraft, Julia, Mors, Ole, Catts, Stanley V., Lazzeroni, Laura C., Mortensen, Preben B., Streit, Fabian, Kusumawardhani, Agung, Alexander, Madeline, Godard, Stephanie, Müller-Myhsok, Bertram, Milanova, Vihra, Neil, Amanda L., Cichon, Sven, Giannitelli, Marianna, Cheung, Eric F. C., Kubo, Michiaki, Schwab, Sibylle G., Collier, David A., Williams, Nigel M., Morris, Derek W., Corvin, Aiden, Pimm, Jonathan, Curtis, David, Haroutunian, Vahram, Keller, Matthew C., Vassos, Evangelos, Hyman, Steven E., Iwata, Nakao, Jönsson, Erik G., Kahn, René S., Chan, Raymond C. K., Kennedy, James L., Shi, Yongyong, Adams, Mark, Witt, Stephanie H., Khusnutdinova, Elza, Verhage, Matthijs, Xu, Shuhua, Wu, Yang, Kirov, George, Arolt, Volker, Knowles, James A., Moltó, Maria Dolores, Krebs, Marie-Odile, Hartmann, Annette M., Nestadt, Gerald, Wormley, Brandon K., Bass, Nicholas J., Laurent-Levinson, Claudine, Lee, Jimmy, Muntané, Gerard, Porteous, David, Kuzelova-Ptackova, Hana, Lencz, Todd, Subramaniam, Mythily, Levinson, Douglas F., Li, Qingqin S., Liu, Jianjun, Swerdlow, Neal R., Cairns, Murray J., Malhotra, Anil K., Malhotra, Dheeraj, Iyegbe, Conrad, Mondelli, Valeria, Kim, Minsoo, Arrojo, Manuel, Landi, Stefano, McIntosh, Andrew M., Petryshen, Tracey L., Radant, Allen D., Frei, Oleksandr, Mesholam-Gately, Raquelle I., McQuillin, Andrew, Sugar, Catherine A., Menezes, Paulo Rossi, St Clair, David, Meier, Sandra, Powell, John, Chaumette, Boris, Stefansson, Hreinn, Domenici, Enrico, Bonassi, Stefano, Stefánsson, Kári, Wu, Jing Qin, Tsuang, Ming T., Myin-Germeys, Inez, Pellegrino, Renata, Visscher, Peter M., Yang, Jian, Posthuma, Danielle, Andreassen, Ole A., Koopmans, Frank, Kendler, Kenneth S., Chong, Siow Ann, Gur, Ruben C., Ehrenreich, Hannelore, Owen, Michael J., Rietschel, Marcella, Gratten, Jacob, Wray, Naomi R., Hoffmann, Per, Daly, Mark J., Szatkiewicz, Jin P., Huang, Hailiang, Nenadić, Igor, Torretta, Silvia, Escott-Price, Valentina, Neale, Benjamin M., Begemann, Martin, Thibaut, Florence, Agerbo, Esben, Rampino, Antonio, Sullivan, Patrick F., Schulze, Thomas G., Ripke, Stephan, Walters, James T. R., O'Donovan, Michael C., Kučinskas, Vaidutis, Belliveau, Richard A., Bene, Judit, Oh, Sang-Yun, Ta, Thi Minh Tam, Greenwood, Tiffany A., Howrigan, Daniel P., Rapaport, Mark H., Benyamin, Beben, Mowry, Bryan J., Giegling, Ina, Strengman, Eric, Bergen, Sarah E., Silverman, Jeremy M., Blasi, Giuseppe, Cohen, David, Stone, William S., Xu, Zhida, Lee, Phil H., Consoli, Angèle, Kelly, Brian J.., Cordeiro, Quirino, Esko, Tõnu, and Costas, Javier

Abstract

Schizophrenia has a heritability of 60-80%1, much of which is attributable to common risk alleles. Here, in a two-stage genome-wide association study of up to 76,755 individuals with schizophrenia and 243,649 control individuals, we report common variant associations at 287 distinct genomic loci. Associations were concentrated in genes that are expressed in excitatory and inhibitory neurons of the central nervous system, but not in other tissues or cell types. Using fine-mapping and functional genomic data, we identify 120 genes (106 protein-coding) that are likely to underpin associations at some of these loci, including 16 genes with credible causal non-synonymous or untranslated region variation. We also implicate fundamental processes related to neuronal function, including synaptic organization, differentiation and transmission. Fine-mapped candidates were enriched for genes associated with rare disruptive coding variants in people with schizophrenia, including the glutamate receptor subunit GRIN2A and transcription factor SP4, and were also enriched for genes implicated by such variants in neurodevelopmental disorders. We identify biological processes relevant to schizophrenia pathophysiology; show convergence of common and rare variant associations in schizophrenia and neurodevelopmental disorders; and provide a resource of prioritized genes and variants to advance mechanistic studies.

Published
2022

24. Mu-opioid antagonism in the treatment of cannabis use disorder

Author

Kebir, Oussama, Laqueille, Xavier, and Mouaffak, Faycal

Subjects
Opioid abuse -- Care and treatment, Marijuana, Coronary heart disease -- Care and treatment, Buprenorphine, Hydroxyzine, Insomnia, Diseases, Health, Psychology and mental health
Abstract

A 55-year-old man presented to our outpatient department for severe cannabis use disorder (CUD): he had been using 10 joints of cannabis resin per day for 25 years. He reported [...]

Published
2020
Full Text
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25. Kleptomania treated with naltrexone in a patient with intellectual disability

Author

Mouaffak, Faycal, Hamzaoui, Sonia, Kebir, Oussama, and Laqueille, Xavier

Subjects
Mental disorders -- Care and treatment, Naltrexone, Addiction, Handbooks, Disabilities, Conduct disorder, Health, Psychology and mental health
Abstract

Kleptomania occurs in 0.3%-0.6% of the population and is defined as 'the recurrent failure to resist impulses to steal items even though the items are not needed for personal use [...]

Published
2020
Full Text
View/download PDF

26. Influence of polygenic risk scores for schizophrenia and resilience on the cognition of individuals at-risk for psychosis

Author

He, Qin, Jantac Mam-Lam-Fook, Célia, Chaignaud, Julie, Danset-Alexandre, Charlotte, Iftimovici, Anton, Gradels Hauguel, Johanna, Houle, Gabrielle, Liao, Calwing, Amado, Isabelle, Bourgin, Julie, Daban-Huard, Claire, Magaud, Emilie, Plaze, Marion, Rivollier, Fabrice, Dion, Patrick, Rouleau, Guy, Kebir, Oussama, Krebs, Marie-Odile, Chaumette, Boris, Institut de psychiatrie et neurosciences de Paris (IPNP - U1266 Inserm), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Paris (UP), Service NEUROSPIN (NEUROSPIN), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPCité), Université Paris-Saclay-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), and ANR-17-CE37-0003,EPI_young,Dysrégulation de l'épigenome en lien avec l'usage de substances et santé mentale des jeunes(2017)

Subjects
Psychosis, Trail Making Test, Neurosciences. Biological psychiatry. Neuropsychiatry, Neuropsychological Tests, behavioral disciplines and activities, Article, 03 medical and health sciences, Cellular and Molecular Neuroscience, 0302 clinical medicine, Cognition, Wisconsin Card Sorting Test, Risk Factors, mental disorders, medicine, Verbal fluency test, Humans, Biological Psychiatry, 030304 developmental biology, 0303 health sciences, Intelligence quotient, Comparative genomics, Wechsler Adult Intelligence Scale, medicine.disease, Psychiatry and Mental health, Psychotic Disorders, Schizophrenia, [SDV.MHEP.PSM]Life Sciences [q-bio]/Human health and pathology/Psychiatrics and mental health, sense organs, Psychology, Neurocognitive, 030217 neurology & neurosurgery, RC321-571, Clinical psychology
Abstract

Cognitive impairment is a core feature of schizophrenia which precedes the onset of full psychotic symptoms, even in the ultra-high-risk stage (UHR). Polygenic risk scores (PRS) can be computed for many psychiatric disorders and phenotyping traits, including scores for resilience. We explored the correlations between several PRS and neurocognition in UHR individuals. We included 107 UHR individuals; 29.9% of them converted to psychosis (UHR-C) while 57.0% did not (UHR-NC) during the 1-year follow-up. Cognitive performances were assessed with the Wechsler Adult Intelligence Scale estimating the Intelligence Quotient (IQ), the Trail Making Test, the verbal fluency, the Stroop test, and the Wisconsin card sorting test. Linear regression models were used to test their association with the PRS for schizophrenia, bipolar disorder, major depression, ADHD, cross-disorders, cognitive performance, intelligence, education attainment, and resilience to schizophrenia. UHR-C had a lower IQ than UHR-NC. The PRS for schizophrenia negatively correlated with IQ, while the PRS for cognitive performance and for resilience positively correlated with IQ. PRS for schizophrenia showed a significant correlation with working memory and processing speed indices. PRS for schizophrenia showed a higher effect on IQ in UHR-NC, and UHR-NC with high PRS for schizophrenia had a similar IQ as UHR-C. Conversely, UHR-C with a high PRS for resilience performed as well as UHR-NC. Our findings suggest that cognitive deficits may predate the onset of psychosis. The genetic architecture of schizophrenia seems to impacts the cognition in UHR-NC. Cognition is also mediated by PRS for resilience.

Published
2021

32. Dysregulation of peripheral expression of the YWHA genes during conversion to psychosis

Author

Demars, Fanny, Kebir, Oussama, Marzo, Aude, Iftimovici, Anton, Schramm, Catherine, Krebs, Marie-Odile, Chaumette, Boris, Institut de psychiatrie et neurosciences de Paris (IPNP - U1266 Inserm), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPCité), GHU Paris Psychiatrie et Neurosciences, Groupement de recherche en Psychiatrie (GDR Psychiatrie (3557)), Centre National de la Recherche Scientifique (CNRS), Service NEUROSPIN (NEUROSPIN), Université Paris-Saclay-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), CHU Sainte Justine [Montréal], Department of Psychiatry [Montréal], McGill University = Université McGill [Montréal, Canada], ICAAR Study Group : Isabelle Amado, Julie Bourgin, Claire Daban Huard, Célia Jantac Mam-Lam-Fook, Marion Plaze, Fabrice Rivollier., ANR-18-RHUS-0014,PSYCARE,Preventing psychosis through personalized care(2018), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Paris (UP), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, and Martinez Rico, Clara

Subjects
Male, [SDV.GEN]Life Sciences [q-bio]/Genetics, [SCCO.NEUR]Cognitive science/Neuroscience, [SDV]Life Sciences [q-bio], [SCCO.NEUR] Cognitive science/Neuroscience, [SDV.MHEP.PSM] Life Sciences [q-bio]/Human health and pathology/Psychiatrics and mental health, [SDV.GEN] Life Sciences [q-bio]/Genetics, DNA Methylation, Psychosis, Article, [SDV] Life Sciences [q-bio], Young Adult, 14-3-3 Proteins, Gene Expression Regulation, Psychotic Disorders, [SDV.MHEP.PSM]Life Sciences [q-bio]/Human health and pathology/Psychiatrics and mental health, Disease Progression, Humans, Female, Gene expression, Longitudinal Studies
Abstract

International audience; The seven human 14-3-3 proteins are encoded by the YWHA-gene family. They are expressed in the brain where they play multiple roles including the modulation of synaptic plasticity and neuronal development. Previous studies have provided arguments for their involvement in schizophrenia, but their role during disease onset is unknown. We explored the peripheral-blood expression level of the seven YWHA genes in 92 young individuals at ultra-high risk for psychosis (UHR). During the study, 36 participants converted to psychosis (converters) while 56 did not (non-converters). YWHA genes expression was evaluated at baseline and after a mean follow-up of 10.3 months using multiplex quantitative PCR. Compared with non-converters, the converters had a significantly higher baseline expression levels for 5 YWHA family genes, and significantly different longitudinal changes in the expression of YWHAE, YWHAG, YWHAH, YWHAS and YWAHZ. A principal-component analysis also indicated that the YWHA expression was significantly different between converters and non-converters suggesting a dysregulation of the YWHA co-expression network. Although these results were obtained from peripheral blood which indirectly reflects brain chemistry, they indicate that this gene family may play a role in psychosis onset, opening the way to the identification of prognostic biomarkers or new drug targets.

Published
2020

34. Candidate genes and neuropsychological phenotypes in children with ADHD: review of association studies

Author

Kebir, Oussama, Tabbane, Karim, Sengupta, Sarojini, and Joober, Ridha

Subjects
Attention-deficit hyperactivity disorder -- Risk factors, Attention-deficit hyperactivity disorder -- Genetic aspects, Attention-deficit hyperactivity disorder -- Care and treatment, Attention-deficit hyperactivity disorder -- Research, Genetic susceptibility -- Research, Children -- Health aspects, Children -- Genetic aspects, Children -- Research
Abstract

Background: We reviewed systematically the results of genetic studies investigating associations between putative susceptibility genes for attention-deficit hyperactivity disorder (ADHD) and neuropsychological traits relevant for this disorder. Methods: We identified papers for review through the PubMed database. Results: Twenty-nine studies examined 10 genes (DRD4, DAT1, COMT, DBH, MAOA, DRD5, ADRA2A, GRIN2A, BDNF and TPH2) in relation to neuropsychological traits relevant for ADHD. For DRD4, the continuous performance test (CPT) and derived tasks were the most used tests. Association of high reaction time variability with the 7-repeat allele absence appears to be the most consistent result and seems to be specific to ADHD. Speed of processing, set-shifting and cognitive impulsiveness were less frequently investigated but seem to be altered in the 7-repeat allele carriers. No effect of genotype was found on response inhibition (the stop and go/no-go tasks). For DAT1, 4 studies provide conflicting results in relation to omission and commission errors from CPT and derived tasks. High reaction time variability seems to be the most replicated cognitive marker associated with the 10-repeat homozygosity. The other genes have attracted fewer studies, and the reported findings need to be replicated. Limitations: Although we aimed to perform a formal meta-analysis, this was not possible because the number of studies using the same neurocognitive endophenotypes was limited. We referred only minimally to the various theoretical frameworks in this field of research; more detail would have been beyond the scope of our systematic review. Finally, sample sizes in most of the studies we reviewed were small. Thus, some negative findings could be attributed to a lack of statistical power, and positive results should be considered preliminary until they are replicated in extended samples. Conclusion: Several methodological issues, including measurement errors, developmental changes in cognitive abilities, sex, psychostimulant effects and presence of comorbid conditions, represent confounding factors and may explain conflicting results. Contexte : Nous avons revu systematiquement des resultats des etudes genetiques ayant examine l&apos;association entre des genes de susceptibilite au trouble hype ractivity/deficit de l&apos;attention (THADA) et les marqueurs neuropsychologiques les plus incrimines dans ce trouble. Methodes : Nous avons recueilli des articles analyses dans cette revue par le moyen d&apos;interrogation de la base de donnees PubMed. Resultats : Vingt-neuf etudes ont examine 10 genes (DRD4, DAT1, COMT, DBH, MAOA, DRD5, ADRA2A, GRIN2A, BDNF et TPH2) en association aux traits neuropsychologiques impliques dans le THADA. Pour DRD4, le << continuous performance test >> (CPT) et les taches derivees representent les taches les plus utilizees. L&apos;association d&apos;une grande variabilite des temps de reaction avec l&apos;absence de l&apos;allele << 7-repeat >> apparait comme le resultat le plus solide et semble etre specifique au THADA. La vitesse de traitement, la flexibilite et l&apos;impulsivite cognitives ont ete moins frequemment etudiees mais semblent etre perturbees chez les porteurs de l&apos;allele << 7-repeat >>. II n&apos;existe pas d&apos;effet du genotype sur la capacite d&apos;inhibition (taches stop et go/no-go). Pour DAT1, 4 etudes rapportent des resultats discordants concernant les erreurs d&apos;omission et de commission au CPT et taches derivees. Une grande variabilite des temps de reaction semble etre le marqueur cognitif le plus replique en association a l&apos;homozygosite de l&apos;allele << 10-repeat >>. Les autres genes ont fait l&apos;objet de moins d&apos;etudes dont les resultats necessitent des replications. Limites : Une meta-analyse n&apos;a pas pu etre realisee vu le faible nobre d&apos;etudes utilisant le meme endophenotype cognitif. Nous nous sommes referes au minimum aux differentes approches theoriques dans ce champ de recherche car les aborder en detail aurait depasse l&apos;objectif de cette etude d&apos;examen critique. Enfin, les echantillons etudies sont de petite taille. De ce fait, quelques resultats negatifs pourraient etre attribues au manque de puissance statistique et les associations positives devraient etre considerees comme preliminaires jusqu&apos;a leur replication dans des echantillons plus grands. Conclusion : Plusieurs problemes methodologiques incluant les erreurs de mesure, l&apos;effet du developpement sur les performances cognitives, le sexe, les effets des traitements psychostimulants et la presence de comorbidites sont releves. Its representent des facteurs confondants et peuvent contribuer a la discordance des resultats., Introduction Attention-deficit hyperactivity disorder (ADHD) is a highly prevalent, childhood-onset disorder characterized by age-inappropriate levels of inattention, hyperactivity and impulsivity. (1) The disorder often persists into adulthood with deleterious effects [...]

Published
2009

35. Dysregulated Lipid Metabolism Precedes Onset of Psychosis

Author

Dickens, Alex M., primary, Sen, Partho, additional, Kempton, Matthew J., additional, Barrantes-Vidal, Neus, additional, Iyegbe, Conrad, additional, Nordentoft, Merete, additional, Pollak, Thomas, additional, Riecher-Rössler, Anita, additional, Ruhrmann, Stephan, additional, Sachs, Gabriele, additional, Bressan, Rodrigo, additional, Krebs, Marie-Odile, additional, Amminger, G. Paul, additional, de Haan, Lieuwe, additional, van der Gaag, Mark, additional, Valmaggia, Lucia, additional, Hyötyläinen, Tuulia, additional, Orešič, Matej, additional, McGuire, Philip, additional, Valmaggia, Lucia R., additional, Calem, Maria, additional, Tognin, Stefania, additional, Modinos, Gemma, additional, Velthorst, Eva, additional, Kraan, Tamar C., additional, van Dam, Daniella S., additional, Burger, Nadine, additional, Nelson, Barnaby, additional, McGorry, Patrick, additional, Pantelis, Christos, additional, Politis, Athena, additional, Goodall, Joanne, additional, Borgwardt, Stefan, additional, Rapp, Charlotte, additional, Ittig, Sarah, additional, Studerus, Erich, additional, Smieskova, Renata, additional, Gadelha, Ary, additional, Brietzke, Elisa, additional, Asevedo, Graccielle, additional, Asevedo, Elson, additional, Zugman, Andre, additional, Domínguez-Martínez, Tecelli, additional, Racciopi, Anna, additional, Kwapil, Thomas R., additional, Monsonet, Manel, additional, Rosa, Araceli, additional, Frajerman, Ariel, additional, Chaumette, Boris, additional, Bourgin, Julie, additional, Kebir, Oussama, additional, Jantac, Célia, additional, Nordholm, Dorte, additional, Randers, Lasse, additional, Krakauer, Kristine, additional, Glenthøj, Louise, additional, Glenthøj, Birte, additional, Gebhard, Dominika, additional, Arnhold, Julia, additional, Klosterkötter, Joachim, additional, Lasser, Iris, additional, Winklbaur, Bernadette, additional, Delespaul, Philippe A., additional, Rutten, Bart P., additional, and van Os, Jim, additional

Published
2021
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36. Stress, Cortisol and NR3C1 in At-Risk Individuals for Psychosis: A Mendelian Randomization Study

Author

Iftimovici, Anton, Kebir, Oussama, He, Qin, Jay, M, Rouleau, Guy, Krebs, Marie-Odile, Chaumette, Boris, Institut de psychiatrie et neurosciences de Paris (IPNP - U1266 Inserm), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Paris (UP), Service NEUROSPIN (NEUROSPIN), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Groupement de recherche en Psychiatrie (GDR Psychiatrie (3557)), Centre National de la Recherche Scientifique (CNRS), GHU Paris Psychiatrie et Neurosciences, Montreal Neurological Institute and Hospital, McGill University = Université McGill [Montréal, Canada], Martinez Rico, Clara, Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPCité), Université Paris-Saclay-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)

Subjects
[SDV] Life Sciences [q-bio], Psychiatry, stress, ultra-high risk of psychosis, expression quantitative trait locus, [SDV]Life Sciences [q-bio], Mendelian randomization, genome-wide analysis study, hypothalamic–pituitary–adrenal axis, cortisol, Original Research
Abstract

International audience; Introduction: The emergence of psychosis in at-risk individuals results from interactions between genetic vulnerability and environmental factors, possibly involving dysregulation of the hypothalamic-pituitary-adrenal axis. Hypercorticism was indeed described in schizophrenia and ultra-high-risk states, but its association with clinical outcome has yet to be demonstrated. The impact of stress through cortisol may vary depending on the expression level of genes related to the stress pathway.Methods: To test this hypothesis, we selected NR3C1, the gene encoding the glucocorticoid receptor, and modeled through logistic regression how its peripheral expression could explain some of the risk of psychosis, independently of peripheral cortisol levels, in a French longitudinal prospective cohort of 133 at-risk individuals, adjusted for sex, age, cannabis, and antipsychotic medication intake. We then performed a genome-wide association analysis, stratified by sex (55 females and 78 males), to identify NR3C1 expression quantitative trait loci to be used as instrumental variables in a Mendelian randomization framework.Results: NR3C1 expression was significantly associated with a higher risk of conversion to psychosis (OR = 2.03, p = 0.03), independently of any other factor. Cortisol was not associated with outcome nor correlated with NR3C1. In the female subgroup, rs6849528 was associated both with NR3C1 mRNA levels (p = 0.015, Effect-Size = 2.7) and conversion (OR = 8.24, p = 0.03).Conclusions: For the same level of cortisol, NR3C1 expression increases psychotic risk, independently of sex, age, cannabis, and antipsychotic intake. In females, Mendelian randomization confirmed NR3C1's effect on outcome to be unbiased by any environmental confounder.

Published
2020

37. Additional file 1 of Reliability and correlation of mixture cell correction in methylomic and transcriptomic blood data

Author

Chaumette, Boris, Kebir, Oussama, Dion, Patrick, Rouleau, Guy, and Marie-Odile Krebs

Abstract

Additional file 1: Table S1. Raw proportions of the six different cell types both in the methylation dataset and in the RNA sequencing dataset. Table S2. Pearson’s correlation between the proportion of each cell type estimated from the methylomic dataset and the transcriptomic dataset.

Published
2020
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43. [Membrane lipids in schizophrenia and early phases of psychosis: Potential biomarkers and therapeutic targets?]

Author

Frajerman, A., Kebir, Oussama, Chaumette, Boris, Tessier, Cedric, Lamaziere, Antonin, Nuss, Philippe, Krebs, Marie-Odile, Institut de psychiatrie et neurosciences de Paris (IPNP - U1266 Inserm), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPCité), GHU Paris Psychiatrie et Neurosciences, Microorganismes et physiopathologie intestinale (ERL INSERM U1157 - CNRS UMR 7203), Laboratoire des biomolécules (LBM UMR 7203), Université Pierre et Marie Curie - Paris 6 (UPMC)-Département de Chimie - ENS Paris, École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Département de Chimie - ENS Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Centre de Recherche Saint-Antoine (CRSA), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU), and Martinez Rico, Clara

Subjects
[SDV]Life Sciences [q-bio], Acide arachidonique, Prodromal Symptoms, Risk Assessment, Membrane Lipids, Phospholipase A2, Fatty Acids, Omega-3, [SDV.BBM] Life Sciences [q-bio]/Biochemistry, Molecular Biology, Animals, Humans, [SDV.BBM]Life Sciences [q-bio]/Biochemistry, Molecular Biology, Cognitive Dysfunction, Molecular Targeted Therapy, [SDV.MHEP] Life Sciences [q-bio]/Human health and pathology, Lipidomic, Brain, Lipidomique, [SDV] Life Sciences [q-bio], Endophenotype, Prodromes, Phenotype, Arachidonic acid, Psychotic Disorders, Dietary Supplements, Lipidomics, Disease Progression, Schizophrenia, Patient à haut risque de transition psychotique, lipids (amino acids, peptides, and proteins), Clinical High risk, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology, Biomarkers, Endophénotype
Abstract

The various roles of membrane lipids in human health has urged researchers to study their impact in neuropsychiatric diseases, especially in schizophrenia spectrum disorders and more recently in early stages of psychosis. The progress in mass spectrometry technologies now allows a more comprehensive analysis of phospholipids (PL) and their fatty acid (FA) molecular species. FA are defined by a carbon chain of variable length and are said to be unsaturated when their chain has one or more carbon-carbon double bonds. The PL are composed of a hydrophilic polar head with a phosphoric acid group and an hydrophobic part with FAs; they encompass glycerophospholipids and sphingolipids. The plasma membrane is a complex and dynamic structure consisting of a lipid bilayer composed of an outer layer and an inner layer of specific lipid composition. The permanent remodeling of membrane lipids involves phospholipases especially the phospholipase A2. Seventy percent of the brain consists of lipids from different classes and molecular species. Most of the brain lipids are composed of polyunsaturated fatty acid (PUFA)-enriched diacyl classes where omega-3 and omega-6 molecular species predominate. The balance between omega-3 and omega-6 is important for the neurodevelopment. PUFA are also involved in neurogenesis and neurotransmission. Sphingomyelin (SM) is a sphingolipid that influences inflammation, cell proliferation and lipid rafts formation. It is an important component of myelin sheaths of white matter and therefore is involved in cerebral connectivity. In rat models, deficiency in omega-3 causes abnormalities in dopaminergic neurotransmission, impacts on the functioning of some receptors (including cannabinoids CB1, glutamatergic N-methyl-D-aspartate receptor, NMDA), and increases sensitivity to hallucinogens. In contrast, omega-3 supplementation improves cognitive function and prevents psychotic-like behavior in some animal models for schizophrenia. It also reduces oxidative stress and prevents demyelination. The historical membrane hypothesis of schizophrenia has led to explore the lipids abnormality in this disorder. This hypothesis was initially based on the observation of an abnormal membrane prostaglandin production in schizophrenia caused by a membrane arachidonic acid deficiency. It has evolved emphasizing the various PUFA membrane's roles in particular regarding oxidative stress, inflammation and regulation of the NMDA receptors. In patients with mental disorders, low omega-3 index is more frequent than in the general population. This lipid abnormality could lead to myelination abnormalities and cognitive deficits observed in patients. It could also participate in oxidative stress abnormalities and inflammation reported in schizophrenia. On the other hand, low omega-3 index deficit was reported to be associated with an increased cardiovascular risk, and omega-3 supplementation may also have a positive cardiovascular impact in psychiatric patients, even more than in the general population. The presence of membrane lipid abnormalities is also found in patients during the first psychotic episode (FEP). The omega-3 supplementation improved the recovery rate and prevented the loss of gray matter in FEP. In patients at ultra-high risk to develop a psychotic disorder (UHR), omega-3 supplementation has been associated with a reduction of the rate of conversion to psychosis and with metabolic changes, such as decreased activity of phospholipase A2. However, this study has not as yet been replicated. Not all patients exhibit lipid abnormalities. Several studies, including studies from our team, have found a bimodal distribution of lipids in patients with schizophrenia. But some studies have found differences (in PUFA) in the acute phase whereas our studies (on phospholipids) are in chronic phases. It will be interesting to study in more depth the links between these two parameters. Furthermore, we identified a subgroup which was identified with a deficit in sphingomyelin and PUFA whereas others have found an increase of sphingomyelin. Individuals with this abnormal lipid cluster had more cognitive impairments and more severe clinical symptoms. Because the niacin test is an indirect reflection of arachidonic acid levels, it has been proposed to identify a subset of patients with membrane lipids anomalies. Niacin test response is influenced by several factors related to lipid metabolism, including cannabis use and phospholipase A2 activity. Despite progress, the function and impact of membrane lipids are still poorly understood in schizophrenia. They could serve as biomarkers for identifying biological subgroups among patients with schizophrenia. In UHR patients, their predictive value on the conversion to psychosis should be tested. Omega-3 supplementation could be a promising treatment thanks to its good tolerance and acceptability. It could be more appropriate for patients with PUFA anomalies in a more personalized medical approach., Les lipides membranaires jouent un rôle important dans le fonctionnement cérébral et peuvent désormais être étudiés de manière précise. Cette revue vise à familiariser le lecteur avec les lipides membranaires et les conséquences de leurs anomalies dans les troubles du spectre schizophrénique. Nous nous intéresserons aux données concernant les acides gras poly-insaturés (AGPI), les phospholipides et les sphingolipides membranaires, dans la schizophrénie, notamment dans ses phases débutantes et dans les modèles animaux correspondants. Chez l’animal, une carence en oméga-3 entraîne des anomalies neuro-développementales, tandis qu’une supplémentation en oméga-3 a un effet protecteur dans certains modèles. Chez l’homme, une altération dans la concentration membranaire en oméga-3 est observée chez certains patients. Le déficit en AGPI a été décrit comme associé à des anomalies de myélinisation et des troubles cognitifs. Des anomalies similaires peuvent également être retrouvées chez certains sujets lors du premier épisode psychotique (PEP) ou à ultra-haut risque (UHR) et certaines études suggèrent un effet bénéfique d’une supplémentation en oméga-3. Ainsi, l’identification d’une anomalie de la composition des lipides membranaires pourrait servir de biomarqueur chez certains patients, qui pourraient bénéficier d’une supplémentation en oméga-3. Dans ce contexte, l’étude de la composition des anomalies lipidiques membranaires pourrait permettre de prédire la transition psychotique ou le pronostic fonctionnel et cognitif et d’optimiser leur prise en charge. De nouvelles études sur les lipides membranaires sont nécessaires pour mieux comprendre leur implication en psychiatrie et se diriger vers une médecine personnalisée.

Published
2019

44. Longitudinal Analyses of Blood Transcriptome During Conversion to Psychosis

Author

Chaumette, Boris, Kebir, Oussama, Pouch, Juliette, Ducos, Bertrand, Selimi, Fekrije, Gaillard, Raphael, Krebs, Marie-Odile, Amado, I., Gaillard, C., Plaze, M., Magaud, E., Kazes, M., Mam-Lam-Fook, C., Daban, C., Gay, O., Bourgin, J., Martinez, G., Vacheron, M-N, Viala, A., Laqueille, X., Dervaux, Alain, Petitjean, F., Canceil, O., Garnier, B., Fishmann-Mathis, M., Gal, B., Benoit, J. P., Moro, M. R., Centre Hospitalier Sainte Anne [Paris], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Institut de psychiatrie et neurosciences de Paris (IPNP - U1266 Inserm), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPCité), GHU Paris Psychiatrie et Neurosciences, Groupement de recherche en Psychiatrie (GDR Psychiatrie (3557)), Centre National de la Recherche Scientifique (CNRS), Institut de biologie de l'ENS Paris (IBENS), Département de Biologie - ENS Paris, École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), ABCD : Biophysique des Biomolécules, Laboratoire de physique de l'ENS - ENS Paris (LPENS (UMR_8023)), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Centre interdisciplinaire de recherche en biologie (CIRB), Labex MemoLife, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Collège de France (CdF (institution))-Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Service de Neuropathologie [Sainte-Anne], Hôpital Sainte-Anne, Unité de Biostatistique et de Recherche Clinique (UBRC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-CHU Caen, Normandie Université (NU)-Tumorothèque de Caen Basse-Normandie (TCBN)-Tumorothèque de Caen Basse-Normandie (TCBN), Université Paris Cité (UPCité), Molecular virology and immunology – Physiopathology and therapeutic of chronic viral hepatitis (Team 18) (Inserm U955), Institut Mondor de Recherche Biomédicale (IMRB), Institut National de la Santé et de la Recherche Médicale (INSERM)-IFR10-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Institut National de la Santé et de la Recherche Médicale (INSERM)-IFR10-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), Hôpital Louis Mourier - AP-HP [Colombes], Institut de psychiatrie et neurosciences (U894 / UMS 1266), Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), CHU Amiens-Picardie, Groupe de Recherche sur l'alcool et les pharmacodépendances - UMR INSERM_S 1247 (GRAP), Université de Picardie Jules Verne (UPJV)-Institut National de la Santé et de la Recherche Médicale (INSERM), and Monash University [Clayton]

Subjects
Adult, Male, Risk, Psychosis, Longitudinal study, Adolescent, [SDV]Life Sciences [q-bio], Prodromal Symptoms, Biology, Transcriptome, 03 medical and health sciences, Young Adult, 0302 clinical medicine, Gene expression, medicine, Humans, Longitudinal Studies, RNA, Messenger, Gene, Genetics, Sequence Analysis, RNA, High-Throughput Nucleotide Sequencing, medicine.disease, 030227 psychiatry, Psychiatry and Mental health, Psychotic Disorders, Schizophrenia, DNA methylation, Cohort, Disease Progression, Female, 030217 neurology & neurosurgery, Regular Articles
Abstract

International audience; The biological processes associated with the onset of schizophrenia remain largely unknown. Current hypotheses favor gene x environment interactions as supported by our recent report about DNA methylation changes during the onset of psychosis. Here, we conducted the first longitudinal transcriptomic analysis of blood samples from 31 at-risk individuals who later converted to psychosis and 63 at-risk individuals who did not. Individuals were followed for a maximum of 1 year. Blood samples were collected at baseline and at the end of follow-up and individuals served as their own controls. Differentially expressed genes between the 2 groups were identified using the RNA sequencing of an initial discovery subgroup (n = 15 individuals). The most promising results were replicated using high-throughput real-time qPCR in the whole cohort (n = 94 individuals). We identified longitudinal changes in 4 brain-expressed genes based on RNAseq analysis. One of these genes (CPT1A) was replicated in the whole cohort. The previously observed hypermethylation in NRP1 and GSTM5 during the onset of psychosis correlated with a decrease in corresponding gene expression. RNA sequencing also identified 2 co-expression networks that were impaired after conversion compared with baseline-the Wnt pathway including AKT1, CPT1A and semaphorins, and the Toll-like receptor pathway, related to innate immunity. This longitudinal study of transcriptomic changes in individuals with at-risk mental state revealed alterations during conversion to psychosis in pathways and genes relevant to schizophrenia. These results may be a first step toward better understanding psychosis onset. They may also help to identify new biomarkers and targets for disease-modifying therapeutic strategies.

Published
2018

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