Format

Send to:

Choose Destination
See comment in PubMed Commons below
Biol Psychiatry. 2013 Oct 1;74(7):482-9. doi: 10.1016/j.biopsych.2013.04.030. Epub 2013 Jun 14.

Prenatal cocaine exposure and gray matter volume in adolescent boys and girls: relationship to substance use initiation.

Author information

  • 1Department of Psychiatry, Yale University School of Medicine, New Haven, Connecticut.

Abstract

BACKGROUND:

Studies of prenatal cocaine exposure have primarily examined childhood populations. Studying adolescents is especially important because adolescence is a time of changing motivations and initiation of substance use.

METHODS:

Using magnetic resonance imaging and whole-brain voxel-based morphometry, we assessed gray matter volume (GMV) differences in 42 prenatally cocaine exposed (PCE) and 21 noncocaine-exposed (NCE) adolescents, aged 14 to 17 years. Associations between GMV differences in significant clusters and the probability of substance use initiation were examined.

RESULTS:

PCE relative to NCE adolescents demonstrated three clusters of lower GMV involving a limbic and paralimbic (p < .001, family-wise error [FWE] corrected), superior frontal gyrus (p = .001, FWE corrected), and precuneus (p = .019, FWE corrected) cluster. GMVs in the superior frontal and precuneus clusters were associated with initiation of substance use. Each 1-mL decrease in GMV increased the probability of initiating substance use by 69.6% (p = .01) in the superior frontal cluster and 83.6% (p = .02) in the precuneus cluster.

CONCLUSIONS:

PCE is associated with structural differences in cortical and limbic regions. Lower GMVs in frontal cortical and posterior regions are associated with substance use initiation and may represent biological risk markers for substance use.

© 2013 Society of Biological Psychiatry.

KEYWORDS:

Adolescence; gray matter volume; prenatal cocaine exposure; substance use initiation; voxel-based morphometry; whole brain

PMID:
23751204
[PubMed - indexed for MEDLINE]
PMCID:
PMC3775853
Free PMC Article
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Elsevier Science Icon for PubMed Central
    Loading ...
    Write to the Help Desk