Cited by 37Pregnancy and preeclampsia studiesPrenatal Substance Exposure EffectsBirth, Development, and Health

Nicotine- or epinephrine-induced uteroplacental vasoconstriction and fetal growth in the rat

Birnbaum, Samuel C., Nguyen Kien, Martucci, Richard W., Gelzleichter, Thomas R., Witschi, Hanspeter, Hendrickx, Andrew G., Last, Jerold A.·1994·Toxicology

Abstract

We examined the relationship between nicotine-induced vasoconstriction in pregnant rat dams and fetal growth during the third trimester of pregnancy. Pregnant rats were continuously treated between days 13 and 19 of gestation with either nicotine (9.6, 4.8 or 2.4 mg/kg/day), epinephrine (0.72 microgram/kg/day), or saline via continuous infusion from a subcutaneously implanted osmotic minipump. Placental weights in rats treated with high dose nicotine and dams' body weights were severely reduced. However, fetal weights were not affected. Blood flows in uterus and placenta were quantified by measurement of tissue content of 85Sr-labelled microspheres injected via a carotid artery catheter. Both nicotine and epinephrine caused a significant reduction (> 40%) in uterine and placental blood flow. We conclude that vasoconstriction alone as a result of nicotine or epinephrine administration during the last trimester of gestation does not necessarily reduce nutrient supply to the fetus and does not affect fetal growth in rats.

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Authors
Birnbaum, S. C., Kien, N., Martucci, R. W., Gelzleichter, T. R., Witschi, H., Hendrickx, A. G., & Last, J. A.
Affiliations
University of California, Davis (US)
Corresponding author
Last, Jerold A.
Venue
Toxicology
Publisher
Elsevier BV
Published
1994-11
Volume
94
Issue
1-3
Pages
69-80
ISSN
0300-483X (ISSN-L)
OpenAlex
W2011415011
Cited by
37
References
0
Citations by year
2025: 2 · 2024: 2 · 2022: 1 · 2021: 2 · 2020: 1 · 2018: 2 · 2017: 1 · 2016: 5 · 2015: 2 · 2014: 2 · 2012: 2
FWCI
0.00
Type
journal article
Language
en
Open access
closed
Locations
  • Toxicology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Institute of Environmental Health Sciences (ES05707)
  • National Center for Research Resources (P51RR000169, RR-00169)
Topics
  • Health Sciences › Medicine › Obstetrics and Gynecology › Pregnancy and preeclampsia studies
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Prenatal Substance Exposure Effects
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Birth, Development, and Health
Keywords
nicotine, epinephrine, fetal growth, placental blood flow, uterine blood flow, third trimester, placental weight, fetal nutrient supply, prenatal drug exposure, rat pregnancy
MeSH terms
Animals, Cotinine, Epinephrine, Female, Embryonic and Fetal Development, Fetus, Maternal-Fetal Exchange, Nicotine, Placenta, Pregnancy, Vasoconstriction, Infusion Pumps, Implantable, Rats, Sprague-Dawley, Placental Circulation, Rats

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