TY - JOUR A1 - Becker, Katja A1 - El-Faddagh, Mahha A1 - Schmidt, Martin H. A1 - Esser, Günter A1 - Laucht, Manfred T1 - Interaction of dopamine transporter genotype with prenatal smoke exposure on ADHD symptoms N2 - Objective To demonstrate that children homozygous for the 10-repeat allele of the common dopamine transporter (DAT1) polymorphism who were exposed to maternal prenatal smoke exhibited significantly higher hyperactivity-impulsivity than children without these environmental or genetic risks. Study design We performed a prospective longitudinal study from birth into early adulthood monitoring the long-term outcome of early risk factors. Maternal prenatal smoking was determined during a standardized interview with the mother when the child was 3 months old. At age 15 years, 305 adolescents participated in genotyping for the DAT1 40 base pair variable number of tandem repeats polymorphism and assessment of inattention, hyperactivity-impulsivity, and oppositional defiant/conduct disorder symptoms with die Kiddie- Sads-Present and Lifetime Version. Results There was no bivariate association between DAT1 genotype, prenatal smoke exposure and symptoms of attention deficit hyperactivity disorder. However, a significant interaction between DAT1 genotype and prenatal smoke exposure emerged (P =.012), indicating that males with prenatal smoke exposure who were homozygous for the DAT1 10r allele had higher hyperactivity-impulsivity than males from all other groups. In females, no significant main effects of DAT1 genotype or prenatal smoke exposure or interaction effects on any symptoms were evident (all P >.25). Conclusions This study provides further evidence for the multifactorial nature of attention deficit hyperactivity disorder and the importance of studying both genetic and environmental factors and their interaction. Y1 - 2008 SN - 0022-3476 ER - TY - JOUR A1 - Esser, Günter A1 - Mattejat, Fritz T1 - Evidenzbasierte Prävention und Therapie psychischer Störungen des Kindes- und Jugendalters Y1 - 2008 SN - 978-3-940793-34-8 ER - TY - JOUR A1 - Hohmann, Sarah A1 - Becker, Katja A1 - Fellinger, Johannes A1 - Banaschewski, Tobias A1 - Schmidt, Martin H. A1 - Esser, Günter A1 - Laucht, Manfred T1 - Evidence for epistasis between the 5-HTTLPR and the dopamine D4 receptor polymorphisms in externalizing behavior among 15-year-olds N2 - The present study aimed to clarify the functional role of genes in the dopamine and serotonin systems by examining whether polymorphisms in these genes are related to adolescent externalizing behavior either alone or in interaction with each other. Participants were selected from an ongoing prospective study of the outcome of early risk factors. At age 15 years, 298 adolescents (144 males, 154 females) completed the Youth Self Report, 296 primary caregivers the Child Behavior Checklist and 253 teachers the Teacher Report Form. DNA was genotyped for the DRD4 exon III VNTR and the 5-HTTLPR polymorphisms. Results revealed that individuals with the DRD4 7r allele reported significantly more externalizing behavior than carriers of other variants. In addition, a significant interaction emerged, indicating that adolescents carrying two copies of the 5-HTTLPR short allele and the DRD4 7r variant scored highest on aggressive and/or delinquent behavior compared to other genotypes. This result suggests an effect of 5-HTTLPR on externalizing behavior in the presence of DRD4 7r but no effect in its absence. Y1 - 2009 UR - http://www.springerlink.com/content/101493 U6 - https://doi.org/10.1007/s00702-009-0290-1 SN - 0300-9564 ER - TY - JOUR A1 - Schmid, Brigitte A1 - Hohm, Erika A1 - Blomeyer, Dorothea A1 - Zimmermann, Ulrich S. A1 - Schmidt, Martin H. A1 - Esser, Günter A1 - Laucht, Manfred T1 - Concurrent alcohol and tobacco use during early adolescence characterizes a group at risk N2 - Aims: To investigate whether concurrent alcohol and tobacco use during early adolescence characterizes a subgroup that differs from users of one substance only regarding several risk factors for later substance use problems. Methods: Participants were from a prospective longitudinal cohort study of 384 children at risk for later psychopathology, with the majority being born with obstetric complications and psychosocial adversities. Assessments of adolescent drug consumption and related intrapersonal characteristics were obtained at age 15. Results: Compared to consumers of alcohol only, 15-year-olds drinking and smoking during the same time period (past 4 weeks) had significantly higher levels of consumption and more excessive use of alcohol, started drinking at an earlier age, had higher scores on the Fagerstrom Test for Nicotine Dependence, and more cannabis use. This group could be distinguished from users of alcohol only by higher novelty seeking and more positive alcohol effect expectancies. Compared to consumers of tobacco only, concurrent users reported higher nicotine dependence and more cannabis use. No significant differences were observed regarding frequency and age at initiation of tobacco use, tobacco-related sensitivity, self- efficacy and instrumentality as well as novelty seeking. Conclusions: Concurrent alcohol and tobacco use during early adolescence is associated with characteristics that are well known as risk factors for later alcohol use problems and dependence and that should be targeted by prevention programs. Y1 - 2007 UR - http://alcalc.oxfordjournals.org/ U6 - https://doi.org/10.1093/alcalc/agm024 SN - 0735-0414 ER - TY - JOUR A1 - Dinter-Jörg, Monika A1 - Polowczyk, M. A1 - Herrle, Johannes A1 - Esser, Günter A1 - Laucht, Manfred T1 - Mannheimer Beurteilungsskalen zur Analyse der Mutter-Kind-Interaktion im Kleinkindalter Y1 - 1997 ER - TY - JOUR A1 - Ihle, Wolfgang A1 - Esser, Günter A1 - Schmidt, Martin H. T1 - Genese und Verlauf von emotionalen Störungen von der KIndheit bis ins Erwachsenenalter Y1 - 1997 ER - TY - JOUR A1 - Laucht, Manfred A1 - Esser, Günter A1 - Schmidt, Martin H. T1 - Wovor schützen Schutzfaktoren? : Anmerkungen zu einem populären Konzept der modernen Gesundheitsforschung Y1 - 1997 ER - TY - JOUR A1 - Laucht, Manfred A1 - Esser, Günter A1 - Schmidt, Martin H. T1 - Developmental outcome of infants born with biological and psychosocial risks Y1 - 1997 ER - TY - JOUR A1 - Schmidt, Martin H. A1 - Esser, Günter A1 - Laucht, Manfred T1 - Die Entwicklung nach biologischen und psychsozialen Risiken in der frühen Kindheit Y1 - 1997 ER - TY - JOUR A1 - Ihle, Wolfgang A1 - Esser, Günter A1 - Schmidt, Martin H. T1 - Lebensereignisse : Ursache oder Folge von psychischen Störungen. Y1 - 1997 ER - TY - JOUR A1 - Esser, Günter A1 - Schmidt, Martin H. T1 - Psychische Probleme des Jugendalters : Ergebnisse einer prospektiven epidemiologischer Längsschnittsstudie von 8-18 Jahren Y1 - 1997 ER - TY - JOUR A1 - Esser, Günter T1 - Teilleistungsstörungen Y1 - 1997 ER - TY - JOUR A1 - Esser, Günter A1 - Wyschkon, Anne T1 - Diagnostik bei Kindern und Jugendlichen Y1 - 2004 SN - 978-3-932096-43-3 ER - TY - JOUR A1 - Esser, Günter A1 - Wyschkon, Anne A1 - Schmidt, Martin H. A1 - Blanz, Bernhard A1 - Ihle, Wolfgang T1 - Ein Entwicklungsmodell des Substanzmissbrauchs im frühen Erwachsenenalter Y1 - 2008 UR - http://psycontent.metapress.com/content/0942-5403 U6 - https://doi.org/10.1026/0942-5403.17.1.31 SN - 0942-5403 ER - TY - JOUR A1 - Kohn, Juliane A1 - Esser, Günter T1 - ADHS im Jugend- und Erwachsenenalter Y1 - 2008 UR - http://www.springerlink.com/content/100478/ U6 - https://doi.org/10.1007/s00112-008-1731-x SN - 0026-9298 ER - TY - JOUR A1 - Göggerle, Stephanie A1 - Esser, Günter T1 - Entspannungsverfahren Y1 - 2008 SN - 978-3-13-126083-3 ER - TY - JOUR A1 - Hom, Erika A1 - Blomeyer, Dorothea A1 - Schmidt, Martin H. A1 - Esser, Günter A1 - Laucht, Manfred T1 - Jugendliche die frühzeitig rauchen und trinken : eine Risikogruppe? N2 - Epidemiological studies have reported elevated rates of legal drug consumption among adolescents in Germany. The aim of this study was to ascertain patterns and parameters of smoking and drinking in early-users as well as to examine possible determinants of risky patterns of use. Participants were from a longitudinal study of a birth cohort of 384 children at risk. Assessments of adolescent drug consumption as well as of individual and social determinants were obtained at age 15. Adolescents drinking and smoking during the same period (past four weeks) were characterized by more excessive and impulsive consumption and by higher rates of cannabis use. No specific determinants of concurrent use could be found. These findings suggest that adolescents displaying early concurrent tobacco and alcohol use may be at higher risk for substance use problems and should be targeted by prevention programs. Y1 - 2007 UR - http://psycontent.metapress.com/content/1661-4747 U6 - https://doi.org/10.1024/1661-4747.55.3.155 SN - 1661-4747 ER - TY - JOUR A1 - Schmidt, Martin H. A1 - Esser, Günter A1 - Ihle, Wolfgang A1 - Lay, Barbara T1 - Die Bedeutung psychischer und familiärer Faktoren für die Delinquenzentwicklung bis ins Erwachsenenalter N2 - Es werden Befunde aus einer prospektiven Laengsschnittstudie praesentiert, in der 321 Probanden im Alter von 8, 13, 18 und 25 Jahren untersucht werden konnten; ihre Dunkelfelddelinquenz wurde mit 18 und 25 Jahren erfasst. Wir suchten nach Assoziationen zur Delinquenzentwicklung und erwarteten Unterschiede zwischen auf das Jugendalter beschraenkter gegenueber ins fruehe Erwachsenenalter fortgesetzter sowie spaet, d.h. nach dem Alter von 18 Jahren, beginnender Delinquenz. Wir fanden gemeinsame Risikofaktoren und fuer die drei Verlaufstypen spezifische Risikokonstellationen, die eher im Jugendalter als in der Kindheit identifiziert wurden. Widrige familiaere Bedingungen, Entwicklungsverzoegerungen und psychische Stoerungen scheinen mit Delinquenz als eher persistentem Verhalten assoziiert. Y1 - 2009 SN - 0026-9301 ER - TY - JOUR A1 - Pitzer, Martina A1 - Esser, Günter A1 - Schmidt, Martin H. A1 - Laucht, Manfred T1 - Temperamental predictors of externalizing problems among boys and girls : a longitudinal study in a high-risk sample from ages 3 months to 15 years N2 - In a high-risk community sample, we examined the role of regulative temperament and emotionality as well as the extent of gender specificity in the development of externalizing problems. 151 boys and 157 girls born at differing degrees of obstetric and psychosocial risk were followed from birth into adolescence. In infancy and childhood, NYLS- derived temperamental characteristics were assessed by a highly structured parent interview and standardized behavioral observations. At age 15 years, externalizing problems were measured by the Child Behavior Checklist. As revealed by multiple linear regression and logistic regression, low regulative abilities predicted adolescent behavioral and attentional problems over and above obstetric and psychosocial risks. Gender specificity was found in the strength of the association rather than in the kind with a stronger long-term prediction from infant and toddler temperament in girls. Compared to regulative abilities, temperament factors describing aspects of mood and fear/withdrawal versus approach tendencies played a minor role in the development of externalizing problems. Findings are discussed in terms of gender-specific risk factors and possible differential developmental trajectories to subtypes of disruptive behavior. Y1 - 2009 UR - http://www.springerlink.com/content/101492 U6 - https://doi.org/10.1007/s00406-009-0009-1 SN - 0940-1334 ER - TY - JOUR A1 - Schmid, Brigitte A1 - Blomeyer, Dorothea A1 - Becker, Katja A1 - Treutlein, Jens A1 - Zimmermann, Ulrich S. A1 - Buchmann, Arlette F. A1 - Schmidt, Martin H. A1 - Esser, Günter A1 - Banaschewski, Tobias A1 - Rietschel, Marcella A1 - Laucht, Manfred T1 - The interaction between the dopamine transporter gene and age at onset in relation to tobacco and alcohol use among 19-year-olds N2 - Recent evidence suggests that heterogeneity in the age at onset could explain the inconsistent findings of association studies relating the dopamine transporter (DAT1) gene with alcohol and nicotine consumption. The aim of this study was to examine interactions between two DAT1 polymorphisms and different initiation ages with regard to alcohol and tobacco consumption levels and dependence. Two hundred and ninety-one young adults (135 males, 156 females) participating in the Mannheim Study of Children at Risk were genotyped for the 40-bp variable number of tandem repeats (VNTR) and rs27072 polymorphisms of DAT1. Age at initiation was assessed at age 15 and 19 years. Information about current alcohol and tobacco consumption was obtained at age 19 years using self-report measures and structured interviews. Results suggest that age at onset of intensive consumption moderated the association of the DAT1 gene with early adult substance use and dependence, revealing a DAT1 effect only among individuals homozygous for the 10r allele of the 40-bp VNTR who had started daily smoking or being intoxicated early in life. Equally, carriers of the T allele of the rs27072 polymorphism reporting an early age at first intoxication showed higher current alcohol consumption at age 19 years. In contrast, no interaction between rs27072 and the age at first cigarette with regard to later smoking was observed. These findings provide evidence that the DAT1 gene interacts with an early heavy or regular drug exposure of the maturing adolescent brain to predict substance (ab)use in young adulthood. Further studies are required to confirm these findings. Y1 - 2009 UR - http://www3.interscience.wiley.com/cgi-bin/issn?DESCRIPTOR=PRINTISSN&VALUE=1355-6215 U6 - https://doi.org/10.1111/j.1369-1600.2009.00171.x SN - 1355-6215 ER -