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Differentiating Prenatal Exposure to Methamphetamine and Alcohol versus Alcohol and Not Methamphetamine using Tensor-Based Brain Morphometry and Discriminant Analysis
- Source :
- The Journal of Neuroscience. 30:3876-3885
- Publication Year :
- 2010
- Publisher :
- Society for Neuroscience, 2010.
-
Abstract
- Here we investigate the effects of prenatal exposure to methamphetamine (MA) on local brain volume using magnetic resonance imaging. Because many who use MA during pregnancy also use alcohol, a known teratogen, we examined whether local brain volumes differed among 61 children (ages 5–15 years), 21 with prenatal MA exposure, 18 with concomitant prenatal alcohol exposure (the MAA group), 13 with heavy prenatal alcohol but not MA exposure (ALC group), and 27 unexposed controls. Volume reductions were observed in both exposure groups relative to controls in striatal and thalamic regions bilaterally and in right prefrontal and left occipitoparietal cortices. Striatal volume reductions were more severe in the MAA group than in the ALC group, and, within the MAA group, a negative correlation between full-scale intelligence quotient (FSIQ) scores and caudate volume was observed. Limbic structures, including the anterior and posterior cingulate, the inferior frontal gyrus (IFG), and ventral and lateral temporal lobes bilaterally, were increased in volume in both exposure groups. Furthermore, cingulate and right IFG volume increases were more pronounced in the MAA than ALC group. Discriminant function analyses using local volume measurements and FSIQ were used to predict group membership, yielding factor scores that correctly classified 72% of participants in jackknife analyses. These findings suggest that striatal and limbic structures, known to be sites of neurotoxicity in adult MA abusers, may be more vulnerable to prenatal MA exposure than alcohol exposure and that more severe striatal damage is associated with more severe cognitive deficit.
- Subjects :
- Male
Adolescent
Alcohol Drinking
Physiology
Brain mapping
Article
Methamphetamine
Pregnancy
medicine
Humans
Child
Prenatal methamphetamine exposure
Cognitive deficit
Retrospective Studies
Brain Mapping
Ethanol
General Neuroscience
Brain morphometry
Neurotoxicity
Brain
Discriminant Analysis
medicine.disease
Diffusion Tensor Imaging
Child, Preschool
Prenatal Exposure Delayed Effects
Anesthesia
Posterior cingulate
Brain size
Female
medicine.symptom
Psychology
Follow-Up Studies
medicine.drug
Subjects
Details
- ISSN :
- 15292401 and 02706474
- Volume :
- 30
- Database :
- OpenAIRE
- Journal :
- The Journal of Neuroscience
- Accession number :
- edsair.doi.dedup.....e4cc180b9678ac36e2a4ef3de73b6059