Associations between community-level patterns of prenatal alcohol and tobacco exposure on brain structure in a non-clinical sample of 6-year-old children: a South African pilot study

Kristina A. Uban*, Deborah Jonker, Kirsten A. Donald, Stefanie C. Bodison, Samantha J. Brooks, Eric Kan, Babette Steigelmann, Annerine Roos, Andrew Marshall, Shana Adise, Letitia Butler-Kruger, Brigitte Melly, Katherine L. Narr, Shantanu H. Joshi, Hein J. Odendaal, Elizabeth R. Sowell, Dan J. Stein

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

The current small study utilised prospective data collection of patterns of prenatal alcohol and tobacco exposure (PAE and PTE) to examine associations with structural brain outcomes in 6-year-olds and served as a pilot to determine the value of prospective data describing community-level patterns of PAE and PTE in a non-clinical sample of children. Participants from the Safe Passage Study in pregnancy were approached when their child was ~6 years old and completed structural brain magnetic resonance imaging to examine with archived PAE and PTE data (n = 51 children-mother dyads). Linear regression was used to conduct whole-brain structural analyses, with false-discovery rate (FDR) correction, to examine: (a) main effects of PAE, PTE and their interaction; and (b) predictive potential of data that reflect patterns of PAE and PTE (e.g. quantity, frequency and timing (QFT)). Associations between PAE, PTE and their interaction with brain structural measures demonstrated unique profiles of cortical and subcortical alterations that were distinct between PAE only, PTE only and their interactive effects. Analyses examining associations between patterns of PAE and PTE (e.g. QFT) were able to significantly detect brain alterations (that survived FDR correction) in this small non-clinical sample of children. These findings support the hypothesis that considering QFT and co-exposures is important for identifying brain alterations following PAE and/or PTE in a small group of young children. Current results demonstrate that teratogenic outcomes on brain structure differ as a function PAE, PTE or their co-exposures, as well as the pattern (QFT) or exposure.

Original languageEnglish
Pages (from-to)87-96
Number of pages10
JournalActa Neuropsychiatrica
Volume36
Issue number2
DOIs
StatePublished - 26 Apr 2024
Externally publishedYes

Funding

FundersFunder number
ABMRFK01AA026889
Cooperative Agreement MechanismU01 HD045991, U01 AA016501, U01 HD045935, U01 HD055154, U01 HD055155
FASD
Fetal Alcohol Syndrome
National Institute on Alcohol Abuse and Alcoholism5R01AA025653-04
National Institute on Deafness and Other Communication Disorders
National Institute of Child Health and Human Development
Carnegie Corporation of New York
Eunice Kennedy Shriver National Institute of Child Health and Human Development

    Keywords

    • brain structure
    • children
    • low-middle income country (LMIC)
    • prenatal alcohol exposure (PAE)
    • prenatal tobacco exposure (PTE)
    • teratogen

    Fingerprint

    Dive into the research topics of 'Associations between community-level patterns of prenatal alcohol and tobacco exposure on brain structure in a non-clinical sample of 6-year-old children: a South African pilot study'. Together they form a unique fingerprint.

    Cite this