Browsing by Subject "ILLICIT DRUG-USE"

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  • Stringer, S.; Minica, C. C.; Verweij, K. J. H.; Mbarek, H.; Bernard, M.; Derringer, J.; van Eijk, K. R.; Isen, J. D.; Loukola, A.; Maciejewski, D. F.; Mihailov, E.; van der Most, P. J.; Sanchez-Mora, C.; Roos, L.; Sherva, R.; Walters, R.; Ware, J. J.; Abdellaoui, A.; Bigdeli, T. B.; Branje, S. J. T.; Brown, S. A.; Bruinenberg, M.; Casas, M.; Esko, T.; Garcia-Martinez, I.; Gordon, S. D.; Harris, J. M.; Hartman, C. A.; Henders, A. K.; Heath, A. C.; Hickie, I. B.; Hickman, M.; Hopfer, C. J.; Hottenga, J. J.; Huizink, A. C.; Irons, D. E.; Kahn, R. S.; Korhonen, T.; Kranzler, H. R.; Krauter, K.; van Lier, P. A. C.; Lubke, G. H.; Madden, P. A. F.; Magi, R.; McGue, M. K.; Medland, S. E.; Meeus, W. H. J.; Miller, M. B.; Montgomery, G. W.; Nivard, M. G.; Nolte, I. M.; Oldehinkel, A. J.; Pausova, Z.; Qaiser, B.; Quaye, L.; Ramos-Quiroga, J. A.; Richarte, V.; Rose, R. J.; Shin, J.; Stallings, M. C.; Stiby, A. I.; Wall, T. L.; Wright, M. J.; Koot, H. M.; Paus, T.; Hewitt, J. K.; Ribases, M.; Kaprio, J.; Boks, M. P.; Snieder, H.; Spector, T.; Munafo, M. R.; Metspalu, A.; Gelernter, J.; Boomsma, D. I.; Iacono, W. G.; Martin, N. G.; Gillespie, N. A.; Derks, E. M.; Vink, J. M. (2016)
    Cannabis is the most widely produced and consumed illicit psychoactive substance worldwide. Occasional cannabis use can progress to frequent use, abuse and dependence with all known adverse physical, psychological and social consequences. Individual differences in cannabis initiation are heritable (40-48%). The International Cannabis Consortium was established with the aim to identify genetic risk variants of cannabis use. We conducted a meta-analysis of genome-wide association data of 13 cohorts (N = 32 330) and four replication samples (N = 5627). In addition, we performed a gene-based test of association, estimated single-nucleotide polymorphism (SNP)-based heritability and explored the genetic correlation between lifetime cannabis use and cigarette use using LD score regression. No individual SNPs reached genome-wide significance. Nonetheless, gene-based tests identified four genes significantly associated with lifetime cannabis use: NCAM1, CADM2, SCOC and KCNT2. Previous studies reported associations of NCAM1 with cigarette smoking and other substance use, and those of CADM2 with body mass index, processing speed and autism disorders, which are phenotypes previously reported to be associated with cannabis use.
  • Salama, Essi S.; Castaneda, Anu E.; Lilja, Eero; Suvisaari, Jaana; Rask, Shadia; Laatikainen, Tiina; Niemela, Solja (2020)
    Background and aims The associations between traumatic events, substance use and perceived discrimination have been rarely studied among migrants in host countries. We examined whether pre-migration potentially traumatic experiences (PTEs) or perceived discrimination (PD) are associated with substance use among migrants with voluntary (Russians) and forced (Kurds) migration backgrounds. Design Cross-sectional interview and health examination data from the Finnish Migrant Health and Wellbeing Study were used. The target sample (n = 1000 for each group) was drawn from the national population register using stratified random sampling by participants' country of birth and native language. Setting Population-based data were collected from six cities in Finland during 2010-12. Participants The participation rates were 68% (Russians) and 59% (Kurds). The analytical sample size varied (Russians n = 442-687, Kurds n = 459-613), as some participants completed only interview, health examination or short interview. The majority of Kurds had a refugee background (75%) while Russians had mainly migrated for other reasons (99%). Measurements The three main outcomes were self-reported binge drinking, daily smoking and life-time cannabis use. PTEs and PD were self-reported in the interview. Socio-demographic background, migration-related factors and current affective symptoms were adjusted for. Findings Among Kurds, PTEs were associated with binge drinking [adjusted odds ratio (aOR) = 2.65, 95% confidence interval (CI) = 1.30-5.42] and PD was associated with life-time cannabis use (aOR = 3.89, 95% CI = 1.38-10.97) after adjusting for contextual factors. Among Russians, PTEs were associated with life-time cannabis use adjusting for contextual factors (aOR = 2.17, 95% CI = 1.12-4.18). Conclusions In Finland, pre-migration traumatic experiences appear to be associated with life-time cannabis use among the Russian migrant population (voluntary migration) and binge drinking among the Kurdish migrant population (forced migration). Perceived discrimination in Finland appears to be associated with life-time cannabis use among Kurdish migrants.