@article{HohmannZohselBuchmannetal.2016,
  author    = {Hohmann, Sarah and Zohsel, Katrin and Buchmann, Arlette F. and Blomeyer, Dorothea and Holz, Nathalie and Boecker-Schlier, Regina and Jennen-Steinmetz, Christine and Rietschel, Marcella and Witt, Stephanie H. and Schmidt, Martin H. and Esser, G{\"u}nter and Meyer-Lindenberg, Andreas and Banaschewski, Tobias and Brandeis, Daniel and Hohm, Erika and Laucht, Manfred},
  title     = {Interacting effect of MAOA genotype and maternal prenatal smoking on aggressive behavior in young adulthood},
  series = {Journal of neural transmission},
  volume    = {123},
  journal   = {Journal of neural transmission},
  publisher = {Springer},
  address   = {Wien},
  issn      = {0300-9564},
  doi       = {10.1007/s00702-016-1582-x},
  pages     = {885 -- 894},
  year      = {2016},
  abstract  = {Findings on the etiology of aggressive behavior have provided evidence for an effect both of genetic factors, such as variation in the monoamine oxidase A (MAOA) gene, and adverse environmental factors. Recent studies have supported the existence of gene × environment interactions, with early experiences playing a key role. In the present study, the effects of prenatal nicotine exposure, MAOA genotype and their interaction on aggressive behavior during young adulthood were examined. In a sample of 272 young adults (129 males, 143 females) from an epidemiological cohort study, smoking during pregnancy was measured with a standardized parent interview at the offspring's age of 3 months. Aggressive behavior was assessed between the ages of 19 and 25 years using the Young Adult Self-Report. DNA was genotyped for the MAOA 5\&\#8242; untranslated region variable number of tandem repeats polymorphism (VNTR). Results revealed a significant interaction between MAOA and smoking during pregnancy, indicating higher levels of aggressive behavior in young adults carrying the MAOA low-expressing genotype who had experienced prenatal nicotine exposure (n = 8, p = .025). In contrast, in carriers of the MAOA high-expressing genotype, maternal smoking during pregnancy had no effect on aggressive behavior during young adulthood (n = 20, p = .145). This study extends earlier findings demonstrating an interaction between MAOA genotype and prenatal nicotine exposure on aggressive behavior into young adulthood. The results point to the long-term adverse effects of smoking during pregnancy on the offspring's mental health, possibly underlining the importance of smoking cessation during pregnancy. According to the nature of the study (particularly sample size and power), analyses are exploratory and results need to be interpreted cautiously.},
  language  = {en}
}
@article{SchmidBlomeyerBuchmannetal.2011,
  author    = {Schmid, Brigitte and Blomeyer, Dorothea and Buchmann, Arlette F. and Trautmann-Villalba, Patricia and Zimmermann, Ulrich S. and Schmidt, Martin H. and Esser, G{\"u}nter and Banaschewski, Tobias and Laucht, Manfred},
  title     = {Quality of early mother-child interaction associated with depressive psychopathology in the offspring - a prospective study from infancy to adulthood},
  series = {Journal of psychiatric research},
  volume    = {45},
  journal   = {Journal of psychiatric research},
  number    = {10},
  publisher = {Elsevier},
  address   = {Oxford},
  issn      = {0022-3956},
  doi       = {10.1016/j.jpsychires.2011.05.010},
  pages     = {1387 -- 1394},
  year      = {2011},
  abstract  = {Evidence from animal research has revealed that less maternal care results in disturbed emotionality in the offspring. In the present study, the long-term impact of maternal responsiveness and stimulation during early mother child interaction on depressive psychopathology was examined until adulthood. Data are from an epidemiological cohort study of the long-term outcome of early risk factors assessed at birth. At age 3 months, mothers and infants were videotaped during a nursing and playing situation. Maternal responsiveness and stimulation as well as infant responsiveness were evaluated by trained raters. At age 19 years, 314 participants (145 males, 169 females) were characterized on measures of depression through interview and questionnaire. In addition, measures of depression and anxiety were available from assessments in childhood. Results indicated that less maternal stimulation during early interaction was associated with a higher risk of depression in the offspring until the age of 19 years. In addition, children of less stimulating mothers showed more depressive symptoms at age 19 years and displayed more anxiety and depressive symptoms between the ages of 4.5 and 15 years. In contrast, maternal responsiveness was unrelated to children's outcome. In accordance with findings from animal research, the present study provides first longitudinal evidence in humans of a continuous and long-term influence of early maternal interaction behavior on the offspring's psychological adjustment until adulthood. The results suggest that the amount of maternally initiated contact behavior in a very early developmental stage may be crucial for children's mental health, regardless of child and maternal responsiveness.},
  language  = {en}
}