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Auteur Sheppard G. KELLAM |
Documents disponibles écrits par cet auteur (1)
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Polygenic Score × Intervention Moderation: An application of discrete-time survival analysis to modeling the timing of first tobacco use among urban youth / Rashelle J. MUSCI in Development and Psychopathology, 27-1 (February 2015)
[article]
Titre : Polygenic Score × Intervention Moderation: An application of discrete-time survival analysis to modeling the timing of first tobacco use among urban youth Type de document : Texte imprimé et/ou numérique Auteurs : Rashelle J. MUSCI, Auteur ; Katherine E. MASYN, Auteur ; George UHL, Auteur ; Brion MAHER, Auteur ; Sheppard G. KELLAM, Auteur ; Nicholas S. IALONGO, Auteur Article en page(s) : p.111-122 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : The present study examines the interaction between a polygenic score and an elementary school-based universal preventive intervention trial. The polygenic score reflects the contribution of multiple genes and has been shown in prior research to be predictive of smoking cessation and tobacco use (Uhl et al., 2014). Using data from a longitudinal preventive intervention study, we examined age of first tobacco use from sixth grade to age 18. Genetic data were collected during emerging adulthood and were genotyped using the Affymetrix 6.0 microarray. The polygenic score was computed using these data. Discrete-time survival analysis was employed to test for intervention main and interaction effects with the polygenic score. We found a main effect of the intervention, with the intervention participants reporting their first cigarette smoked at an age significantly later than controls. We also found an Intervention × Polygenic Score interaction, with participants at the higher end of the polygenic score benefitting the most from the intervention in terms of delayed age of first use. These results are consistent with Belsky and colleagues' (e.g., Belsky, Bakermans-Kranenburg, & van IJzendoorn, 2007; Belsky & Pleuss, 2009, 2013; Ellis, Boyce, Belsky, Bakermans-Kranenburg, & van IJzendoorn, 2011) differential susceptibility hypothesis and the concept of “for better or worse,” wherein the expression of genetic variants are optimally realized in the context of an enriched environment, such as provided by a preventive intervention. En ligne : http://dx.doi.org/10.1017/S0954579414001333 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=257
in Development and Psychopathology > 27-1 (February 2015) . - p.111-122[article] Polygenic Score × Intervention Moderation: An application of discrete-time survival analysis to modeling the timing of first tobacco use among urban youth [Texte imprimé et/ou numérique] / Rashelle J. MUSCI, Auteur ; Katherine E. MASYN, Auteur ; George UHL, Auteur ; Brion MAHER, Auteur ; Sheppard G. KELLAM, Auteur ; Nicholas S. IALONGO, Auteur . - p.111-122.
Langues : Anglais (eng)
in Development and Psychopathology > 27-1 (February 2015) . - p.111-122
Index. décimale : PER Périodiques Résumé : The present study examines the interaction between a polygenic score and an elementary school-based universal preventive intervention trial. The polygenic score reflects the contribution of multiple genes and has been shown in prior research to be predictive of smoking cessation and tobacco use (Uhl et al., 2014). Using data from a longitudinal preventive intervention study, we examined age of first tobacco use from sixth grade to age 18. Genetic data were collected during emerging adulthood and were genotyped using the Affymetrix 6.0 microarray. The polygenic score was computed using these data. Discrete-time survival analysis was employed to test for intervention main and interaction effects with the polygenic score. We found a main effect of the intervention, with the intervention participants reporting their first cigarette smoked at an age significantly later than controls. We also found an Intervention × Polygenic Score interaction, with participants at the higher end of the polygenic score benefitting the most from the intervention in terms of delayed age of first use. These results are consistent with Belsky and colleagues' (e.g., Belsky, Bakermans-Kranenburg, & van IJzendoorn, 2007; Belsky & Pleuss, 2009, 2013; Ellis, Boyce, Belsky, Bakermans-Kranenburg, & van IJzendoorn, 2011) differential susceptibility hypothesis and the concept of “for better or worse,” wherein the expression of genetic variants are optimally realized in the context of an enriched environment, such as provided by a preventive intervention. En ligne : http://dx.doi.org/10.1017/S0954579414001333 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=257