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The epigenetics of maternal cigarette smoking during pregnancy and effects on child development

Valerie S Knopik1, Matthew A Maccani, Sarah Francazio

  • 1Rhode Island Hospital, RI, USA. valerie_knopik@brown.edu

Development and Psychopathology
|October 16, 2012
PubMed

Insights

Maternal smoking during pregnancy can epigenetically alter fetal development, impacting long-term child health and behavior. Further research is needed to fully understand these critical developmental effects.

Area of Science:

  • Developmental Biology
  • Epigenetics
  • Maternal Health

Background:

  • In utero development is a critical window for fetal growth and future health.
  • Maternal cigarette smoking during pregnancy is a common exposure with known adverse effects.
  • Epigenetic mechanisms are increasingly recognized as mediators of prenatal smoke exposure's impact.

Purpose of the Study:

  • To explore epigenetic alterations linked to maternal smoking during pregnancy.
  • To assess the consequences of these epigenetic changes on fetal development and child well-being.
  • To outline future research directions in this field.

Main Methods:

  • Review of existing literature on epigenetic changes associated with prenatal smoke exposure.
  • Analysis of studies linking DNA methylation and microRNA dysregulation to maternal smoking.
  • Assessment of the impact of these epigenetic alterations on fetal growth and postnatal outcomes.

Main Results:

  • Maternal smoking is associated with altered DNA methylation patterns in the fetus.
  • Prenatal smoke exposure can lead to dysregulated microRNA expression.
  • These epigenetic changes are implicated in reduced birth weight and altered developmental trajectories.

Conclusions:

  • Epigenetic modifications are key mechanisms through which maternal smoking affects fetal development.
  • Understanding these epigenetic changes is crucial for predicting and mitigating long-term health and behavioral consequences in children.
  • Further research is essential to elucidate the full scope of these epigenetic impacts and inform preventative strategies.

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