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Published on: July 13, 2014
Early biomarkers associated with prenatal alcohol exposure and neurodevelopmental outcomes
Isabel Ochando1, Angela Sempere2, Daniela Navarro3,4
1Departamento de Histología y Anatomía, Facultad de Medicina, Universidad Miguel Hernández, Alicante, Spain.
Insights
Prenatal alcohol exposure (PAE) creates lasting brain changes. Biomarkers in the placenta and blood may help predict neurodevelopmental risks from PAE.
Area of Science:
- Neuroscience
- Developmental Biology
- Toxicology
Background:
- Prenatal alcohol exposure (PAE) is a significant stressor impacting neurodevelopment.
- PAE is linked to persistent molecular changes in the placenta and bodily fluids.
- Identifying reliable biomarkers for PAE's effects is crucial for early intervention.
Purpose of the Study:
- To review recent advancements in identifying biomarkers for PAE.
- To explore associations between biomarkers and neurodevelopmental outcomes.
- To discuss challenges and future directions in biomarker research for PAE.
Main Methods:
- Literature review of studies on epigenetic, immune, endocrine, and RNA biomarkers.
- Analysis of biomarkers from placental tissue, umbilical cord blood, and peripheral fluids.
- Examination of associations with neurodevelopmental alterations.
Main Results:
- Convergent findings across diverse study designs indicate biomarker potential.
- Epigenetic, immune, endocrine, and RNA markers show associations with neurodevelopmental outcomes.
- Placental and circulating biomarkers offer promise for risk stratification.
Conclusions:
- Placental and circulating biomarkers can aid in early risk assessment for PAE.
- Biomarkers advance the understanding of PAE-induced neurodevelopmental changes.
- Future research should focus on integrative and longitudinal biomarker strategies.
Abstract:
Prenatal alcohol exposure (PAE) is a major early-life stressor associated with long-lasting neurodevelopmental and neurocognitive alterations. Increasing evidence from human studies indicates that PAE leaves persistent molecular signatures that can be detected in the placenta and in clinically accessible biological fluids. This Mini Review summarizes recent advances in the identification of epigenetic, immune, endocrine, and RNA-based biomarkers measured in placental tissue, umbilical cord blood, and peripheral fluids, and their associations with neurodevelopmental outcomes. We highlight convergent findings across heterogeneous study designs, discuss current methodological challenges and research gaps, and consider future directions toward integrative and longitudinal biomarker approaches. Together, the reviewed evidence supports the potential of placental and circulating biomarkers to improve early risk stratification and to advance understanding of neurodevelopmental alterations following PAE.
