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Prenatal Adversity Alters the Epigenetic Profile of the Prefrontal Cortex: Sexually Dimorphic Effects of Prenatal Alcohol Exposure and Food-Related Stress
| Content Provider | MDPI |
|---|---|
| Author | Lussier, Alexandre A. Bodnar, Tamara S. Moksa, Michelle Hirst, Martin Kobor, Michael S. Weinberg, Joanne |
| Copyright Year | 2021 |
| Description | Prenatal adversity or stress can have long-term consequences on developmental trajectories and health outcomes. Although the biological mechanisms underlying these effects are poorly understood, epigenetic modifications, such as DNA methylation, have the potential to link early-life environments to alterations in physiological systems, with long-term functional implications. We investigated the consequences of two prenatal insults, prenatal alcohol exposure (PAE) and food-related stress, on DNA methylation profiles of the rat brain during early development. As these insults can have sex-specific effects on biological outcomes, we analyzed epigenome-wide DNA methylation patterns in prefrontal cortex, a key brain region involved in cognition, executive function, and behavior, of both males and females. We found sex-dependent and sex-concordant influences of these insults on epigenetic patterns. These alterations occurred in genes and pathways related to brain development and immune function, suggesting that PAE and food-related stress may reprogram neurobiological/physiological systems partly through central epigenetic changes, and may do so in a sex-dependent manner. Such epigenetic changes may reflect the sex-specific effects of prenatal insults on long-term functional and health outcomes and have important implications for understanding possible mechanisms underlying fetal alcohol spectrum disorder and other neurodevelopmental disorders. |
| Starting Page | 1773 |
| e-ISSN | 20734425 |
| DOI | 10.3390/genes12111773 |
| Journal | Genes |
| Issue Number | 11 |
| Volume Number | 12 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-11-09 |
| Access Restriction | Open |
| Subject Keyword | Genes Substance Abuse Fetal Alcohol Spectrum Disorder Dna Methylation Sex Differences Autism Development Brain Prefrontal Cortex Epigenetics |
| Content Type | Text |
| Resource Type | Article |