Cited by 46Prenatal Substance Exposure EffectsFunctional Brain Connectivity StudiesFetal and Pediatric Neurological Disorders

Thalamocortical functional connectivity and behavioral disruptions in neonates with prenatal cocaine exposure

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Salzwedel, Andrew P., Grewen, Karen M., Goldman, Barbara D., Gao, Wei·2016·Neurotoxicology and Teratology

Abstract

Prenatal cocaine exposure (PCE) affects neurobehavioral development, however, disentangling direct drug-related mechanisms from contextual effects (e.g., socioeconomic status) has proven challenging in humans. The effects of environmental confounds are minimal immediately after birth thus we aimed to delineate neurobehavioral correlates of PCE in a large cohort of neonates (2-6weeks of age, N=152) with and without drug exposure using resting state functional magnetic resonance imaging (rsfMRI) and developmental assessments at 3months with the Bayley Scales of Infant & Toddler Development, 3rd edition. The cohort included healthy controls and neonates with similar poly-drug exposure±cocaine. We focused on the thalamus given its critical importance in early brain development and its unique positioning in the dopamine system. Our results revealed PCE-related hyper-connectivity between the thalamus and frontal regions and a drug-common hypo-connective signature between the thalamus and motor-related regions. PCE-specific neonatal thalamo-frontal connectivity was inversely related to cognitive and fine motor scores and thalamo-motor connectivity showed a positive relationship with composite (gross plus fine) motor scores. Finally, cocaine by selective-serotonin-reuptake-inhibitor (SSRI) interactions were detected, suggesting the combined use of these drugs during pregnancy could have additional consequences on fetal development. Overall, our findings provide the first delineation of PCE-related disruptions of thalamocortical functional connectivity, neurobehavioral correlations, and drug-drug interactions during infancy.

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Crossref · 10.1016/j.ntt.2016.05.009

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  • Prenatal cocaine exposure is associated with aberrant functional connectivity between the amygdala and medial prefrontal cortex and between the thalamus and frontal cortex.

    “prenatal cocaine exposure is associated with aberrant functional connectivity between the amygdala and the medial prefrontal cortex183 and between the thalamus and frontal cortex182”
  • Recent studies have revealed substantial alterations of resting-state networks due to prenatal drug exposure.

    “Recent studies have revealed substantial alterations of resting-state networks due to prenatal drug exposure182, 183”

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Research works printed but not linked: 2

  1. Alcauter S Lin W Smith JK Short SJ Goldman BD Reznick JS Gilmore JH Gao W Development of Thalamocortical Connectivity during Infancy and Its Cognitive Correlations J Neurosci 2014b 34 9067 9075 24990927 PMC4078084
  2. Jones EG The Thalamus 2007 2nd edn Cambridge University Press

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Authors
Salzwedel, A. P., Grewen, K. M., Goldman, B. D., & Gao, W.
Affiliations
University of North Carolina at Chapel Hill (US)
Corresponding author
  • Grewen, Karen M.
  • Gao, Wei
Venue
Neurotoxicology and Teratology
Publisher
Elsevier BV
Published
2016-07
Volume
56
Pages
16-25
ISSN
0892-0362 (ISSN-L)
OpenAlex
W2405134753
Cited by
46
References
79
Citations by year
2026: 7 · 2025: 3 · 2024: 1 · 2023: 1 · 2022: 7 · 2021: 6 · 2020: 5 · 2019: 5 · 2018: 5 · 2017: 6
FWCI
6.21
Type
journal article
Language
en
Open access
Locations
  • Neurotoxicology and Teratology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • Carolina Digital Repository (University of North Carolina at Chapel Hill) (submittedVersion)
  • UNC Libraries
Funders
  • NIH (R03 DA036645-01A1, 1R21NS088975-01A1, P01DA022446)
  • Cedars-Sinai Institutional Support
Topics
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Prenatal Substance Exposure Effects
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Fetal and Pediatric Neurological Disorders
Keywords
prenatal cocaine exposure, neonates, thalamus, neurobehavioral development, cognitive development, fine motor development, gross motor development, selective serotonin reuptake inhibitors, drug-drug interactions, dopaminergic system
MeSH terms
Brain Mapping, Cerebral Cortex, Cocaine, Female, Gestational Age, Humans, Infant, Magnetic Resonance Imaging, Motor Activity, Neural Pathways, Neuropsychological Tests, Pregnancy, Prenatal Exposure Delayed Effects, Thalamus

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