Methylation of OPRL1 mediates the effect of psychosocial stress on binge drinking in adolescents / Barbara RUGGERI in Journal of Child Psychology and Psychiatry, 59-6 (June 2018)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 59-6 (June 2018) . - p.650-658 Titre : Methylation of OPRL1 mediates the effect of psychosocial stress on binge drinking in adolescents Type de document : texte imprimé Auteurs : Barbara RUGGERI, Auteur ; Christine MACARE, Auteur ; Serena STOPPONI, Auteur ; Tianye JIA, Auteur ; Fabiana M. CARVALHO, Auteur ; Gabriel ROBERT, Auteur ; Tobias BANASCHEWSKI, Auteur ; Arun L.W. BOKDE, Auteur ; Uli BROMBERG, Auteur ; C. BUCHEL, Auteur ; Anna CATTRELL, Auteur ; Patricia J. CONROD, Auteur ; S. DESRIVIERES, Auteur ; Herta FLOR, Auteur ; Vincent FROUIN, Auteur ; Juergen GALLINAT, Auteur ; Hugh GARAVAN, Auteur ; Penny GOWLAND, Auteur ; Andreas HEINZ, Auteur ; Bernd ITTERMANN, Auteur ; Jean-Luc MARTINOT, Auteur ; Marie-Laure PAILLERE-MARTINOT, Auteur ; Frauke NEES, Auteur ; Dimitri PAPADOPOULOS ORFANOS, Auteur ; Tomáš PAUS, Auteur ; Luise POUSTKA, Auteur ; Michael N. SMOLKA, Auteur ; Nora C. VETTER, Auteur ; Henrik WALTER, Auteur ; Robert WHELAN, Auteur ; W.H. SOMMER, Auteur ; Georgy BAKALKIN, Auteur ; Roberto CICCOCIOPPO, Auteur ; Gunter SCHUMANN, Auteur Article en page(s) : p.650-658 Langues : Anglais (eng) Mots-clés : OPRL1 methylation  adolescence  binge drinking  nucleus accumbens  stressful life events Index. décimale : PER Périodiques Résumé : BACKGROUND: Nociceptin is a key regulator linking environmental stress and alcohol drinking. In a genome-wide methylation analysis, we recently identified an association of a methylated region in the OPRL1 gene with alcohol-use disorders. METHODS: Here, we investigate the biological basis of this observation by analysing psychosocial stressors, methylation of the OPRL1 gene, brain response during reward anticipation and alcohol drinking in 660 fourteen-year-old adolescents of the IMAGEN study. We validate our findings in marchigian sardinian (msP) alcohol-preferring rats that are genetically selected for increased alcohol drinking and stress sensitivity. RESULTS: We found that low methylation levels in intron 1 of OPRL1 are associated with higher psychosocial stress and higher frequency of binge drinking, an effect mediated by OPRL1 methylation. In individuals with low methylation of OPRL1, frequency of binge drinking is associated with stronger BOLD response in the ventral striatum during reward anticipation. In msP rats, we found that stress results in increased alcohol intake and decreased methylation of OPRL1 in the nucleus accumbens. CONCLUSIONS: Our findings describe an epigenetic mechanism that helps to explain how psychosocial stress influences risky alcohol consumption and reward processing, thus contributing to the elucidation of biological mechanisms underlying risk for substance abuse. En ligne : http://dx.doi.org/10.1111/jcpp.12843 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=363 [article] Methylation of OPRL1 mediates the effect of psychosocial stress on binge drinking in adolescents [texte imprimé] / Barbara RUGGERI, Auteur ; Christine MACARE, Auteur ; Serena STOPPONI, Auteur ; Tianye JIA, Auteur ; Fabiana M. CARVALHO, Auteur ; Gabriel ROBERT, Auteur ; Tobias BANASCHEWSKI, Auteur ; Arun L.W. BOKDE, Auteur ; Uli BROMBERG, Auteur ; C. BUCHEL, Auteur ; Anna CATTRELL, Auteur ; Patricia J. CONROD, Auteur ; S. DESRIVIERES, Auteur ; Herta FLOR, Auteur ; Vincent FROUIN, Auteur ; Juergen GALLINAT, Auteur ; Hugh GARAVAN, Auteur ; Penny GOWLAND, Auteur ; Andreas HEINZ, Auteur ; Bernd ITTERMANN, Auteur ; Jean-Luc MARTINOT, Auteur ; Marie-Laure PAILLERE-MARTINOT, Auteur ; Frauke NEES, Auteur ; Dimitri PAPADOPOULOS ORFANOS, Auteur ; Tomáš PAUS, Auteur ; Luise POUSTKA, Auteur ; Michael N. SMOLKA, Auteur ; Nora C. VETTER, Auteur ; Henrik WALTER, Auteur ; Robert WHELAN, Auteur ; W.H. SOMMER, Auteur ; Georgy BAKALKIN, Auteur ; Roberto CICCOCIOPPO, Auteur ; Gunter SCHUMANN, Auteur . - p.650-658. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 59-6 (June 2018) . - p.650-658 Mots-clés : OPRL1 methylation  adolescence  binge drinking  nucleus accumbens  stressful life events Index. décimale : PER Périodiques Résumé : BACKGROUND: Nociceptin is a key regulator linking environmental stress and alcohol drinking. In a genome-wide methylation analysis, we recently identified an association of a methylated region in the OPRL1 gene with alcohol-use disorders. METHODS: Here, we investigate the biological basis of this observation by analysing psychosocial stressors, methylation of the OPRL1 gene, brain response during reward anticipation and alcohol drinking in 660 fourteen-year-old adolescents of the IMAGEN study. We validate our findings in marchigian sardinian (msP) alcohol-preferring rats that are genetically selected for increased alcohol drinking and stress sensitivity. RESULTS: We found that low methylation levels in intron 1 of OPRL1 are associated with higher psychosocial stress and higher frequency of binge drinking, an effect mediated by OPRL1 methylation. In individuals with low methylation of OPRL1, frequency of binge drinking is associated with stronger BOLD response in the ventral striatum during reward anticipation. In msP rats, we found that stress results in increased alcohol intake and decreased methylation of OPRL1 in the nucleus accumbens. CONCLUSIONS: Our findings describe an epigenetic mechanism that helps to explain how psychosocial stress influences risky alcohol consumption and reward processing, thus contributing to the elucidation of biological mechanisms underlying risk for substance abuse. En ligne : http://dx.doi.org/10.1111/jcpp.12843 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=363

Structural brain correlates of adolescent resilience / Keith B. BURT in Journal of Child Psychology and Psychiatry, 57-11 (November 2016)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 57-11 (November 2016) . - p.1287-1296 Titre : Structural brain correlates of adolescent resilience Type de document : texte imprimé Auteurs : Keith B. BURT, Auteur ; Robert WHELAN, Auteur ; Patricia J. CONROD, Auteur ; Tobias BANASCHEWSKI, Auteur ; Gareth J. BARKER, Auteur ; Arun L.W. BOKDE, Auteur ; Uli BROMBERG, Auteur ; Christian BÃœCHEL, Auteur ; Mira FAUTH-BÃœHLER, Auteur ; Herta FLOR, Auteur ; André GALINOWSKI, Auteur ; Juergen GALLINAT, Auteur ; Penny GOWLAND, Auteur ; Andreas HEINZ, Auteur ; Bernd ITTERMANN, Auteur ; Karl MANN, Auteur ; Frauke NEES, Auteur ; Dimitrios PAPADOPOULOS, Auteur ; Tomáš PAUS, Auteur ; Zdenka PAUSOVA, Auteur ; Luise POUSTKA, Auteur ; Marcella RIETSCHEL, Auteur ; Trevor W. ROBBINS, Auteur ; Michael N. SMOLKA, Auteur ; Andreas STRÖHLE, Auteur ; Gunter SCHUMANN, Auteur ; Hugh GARAVAN, Auteur ; THE IMAGEN CONSORTIUM, Auteur Article en page(s) : p.1287-1296 Langues : Anglais (eng) Mots-clés : Imaging  resilience  adolescence  competence  adversity  IMAGEN study Index. décimale : PER Périodiques Résumé : Background Despite calls for integration of neurobiological methods into research on youth resilience (high competence despite high adversity), we know little about structural brain correlates of resilient functioning. The aim of the current study was to test for brain regions uniquely associated with positive functioning in the context of adversity, using detailed phenotypic classification. Methods 1,870 European adolescents (Mage = 14.56 years, SDage = 0.44 years, 51.5% female) underwent MRI scanning and completed behavioral and psychological measures of stressful life events, academic competence, social competence, rule-abiding conduct, personality, and alcohol use. Results The interaction of competence and adversity identified two regions centered on the right middle and superior frontal gyri; grey matter volumes in these regions were larger in adolescents experiencing adversity who showed positive adaptation. Differences in these regions among competence/adversity subgroups were maintained after controlling for several covariates and were robust to alternative operationalization decisions for key constructs. Conclusions We demonstrate structural brain correlates of adolescent resilience, and suggest that right prefrontal structures are implicated in adaptive functioning for youth who have experienced adversity. En ligne : http://dx.doi.org/10.1111/jcpp.12552 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=295 [article] Structural brain correlates of adolescent resilience [texte imprimé] / Keith B. BURT, Auteur ; Robert WHELAN, Auteur ; Patricia J. CONROD, Auteur ; Tobias BANASCHEWSKI, Auteur ; Gareth J. BARKER, Auteur ; Arun L.W. BOKDE, Auteur ; Uli BROMBERG, Auteur ; Christian BÃœCHEL, Auteur ; Mira FAUTH-BÃœHLER, Auteur ; Herta FLOR, Auteur ; André GALINOWSKI, Auteur ; Juergen GALLINAT, Auteur ; Penny GOWLAND, Auteur ; Andreas HEINZ, Auteur ; Bernd ITTERMANN, Auteur ; Karl MANN, Auteur ; Frauke NEES, Auteur ; Dimitrios PAPADOPOULOS, Auteur ; Tomáš PAUS, Auteur ; Zdenka PAUSOVA, Auteur ; Luise POUSTKA, Auteur ; Marcella RIETSCHEL, Auteur ; Trevor W. ROBBINS, Auteur ; Michael N. SMOLKA, Auteur ; Andreas STRÖHLE, Auteur ; Gunter SCHUMANN, Auteur ; Hugh GARAVAN, Auteur ; THE IMAGEN CONSORTIUM, Auteur . - p.1287-1296. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 57-11 (November 2016) . - p.1287-1296 Mots-clés : Imaging  resilience  adolescence  competence  adversity  IMAGEN study Index. décimale : PER Périodiques Résumé : Background Despite calls for integration of neurobiological methods into research on youth resilience (high competence despite high adversity), we know little about structural brain correlates of resilient functioning. The aim of the current study was to test for brain regions uniquely associated with positive functioning in the context of adversity, using detailed phenotypic classification. Methods 1,870 European adolescents (Mage = 14.56 years, SDage = 0.44 years, 51.5% female) underwent MRI scanning and completed behavioral and psychological measures of stressful life events, academic competence, social competence, rule-abiding conduct, personality, and alcohol use. Results The interaction of competence and adversity identified two regions centered on the right middle and superior frontal gyri; grey matter volumes in these regions were larger in adolescents experiencing adversity who showed positive adaptation. Differences in these regions among competence/adversity subgroups were maintained after controlling for several covariates and were robust to alternative operationalization decisions for key constructs. Conclusions We demonstrate structural brain correlates of adolescent resilience, and suggest that right prefrontal structures are implicated in adaptive functioning for youth who have experienced adversity. En ligne : http://dx.doi.org/10.1111/jcpp.12552 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=295

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