Fetal nicotine exposure ablates the ability of postnatal nicotine challenge to release norepinephrine from rat brain regions.

Published

Journal Article

Exposure of the fetus to nicotine is known to affect the function of noradrenergic pathways in the central nervous system. In the current study, synaptic mechanisms underlying the functional defects were evaluated in the offspring of pregnant rats given nicotine infusions of 2 mg/kg/day throughout gestation, administered by osmotic minipumps. At 30 days postpartum, norepinephrine levels in brain regions of the offspring were significantly reduced. More importantly, acute challenge with either 0.1 mg/kg or 0.3 mg/kg of nicotine evoked significant norepinephrine release from brain regions of control animals, but failed to do so in the fetal nicotine cohort. These results suggest that prenatal exposure to nicotine produces a deficit in subsequent noradrenergic responsiveness, deficits which may participate in behavioral and neuroendocrine abnormalities.

Full Text

Duke Authors

Cited Authors

  • Seidler, FJ; Levin, ED; Lappi, SE; Slotkin, TA

Published Date

  • October 23, 1992

Published In

Volume / Issue

  • 69 / 2

Start / End Page

  • 288 - 291

PubMed ID

  • 1424104

Pubmed Central ID

  • 1424104

International Standard Serial Number (ISSN)

  • 0165-3806

Digital Object Identifier (DOI)

  • 10.1016/0165-3806(92)90170-2

Language

  • eng

Conference Location

  • Netherlands