| Nicotine and metabolites in meconium as evidence of maternal cigarette smoking during pregnancy and predictors of neonatal growth deficits. | |
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MedLine Citation:
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PMID: 20427459 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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INTRODUCTION: Many women continue tobacco use during pregnancy despite known adverse consequences on neonatal growth and development. Testing meconium, the first neonatal feces, for tobacco biomarkers offers objective evidence of prenatal tobacco exposure. However, relationships between the amount, frequency, and timing of cigarette smoking during gestation and tobacco biomarker meconium concentrations and neonatal outcomes are unclear. METHODS: Eighty-seven pregnant women provided detailed self-reports of daily tobacco consumption throughout pregnancy. Nicotine, cotinine, and trans-3'-hydroxycotinine were quantified in neonatal meconium by liquid chromatography-tandem mass spectrometry. RESULTS: Among nonsmokers, all meconium specimens were negative, whereas nearly all meconium specimens were positive if the mother self-reported tobacco use into the third trimester. Tobacco biomarker concentrations were significantly albeit weakly correlated with mean cigarettes per day in the third trimester. Reduced birth weight, gestational age, or head circumference were observed if meconium contained one or more tobacco biomarkers, but deficits did not correlate with biomarker concentrations. Conclusion: While previously thought to reflect second and third trimester drug exposure, meconium appears to reliably identify only third trimester drug use. While a 10 ng/g nicotine, cotinine, or trans-3'-hydroxycotinine cutoff in meconium was previously proposed to differentiate tobacco-exposed from nonexposed or passively exposed neonates, improved maternal self-reporting techniques in this cohort suggest that a lower cutoff, equivalent to the analytic limits of quantification, is more appropriate. |
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Authors:
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Teresa R Gray; Rina D Eiden; Kenneth E Leonard; Gerard Connors; Shannon Shisler; Marilyn A Huestis |
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Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Extramural; Research Support, N.I.H., Intramural Date: 2010-04-28 |
Journal Detail:
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Title: Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco Volume: 12 ISSN: 1469-994X ISO Abbreviation: Nicotine Tob. Res. Publication Date: 2010 Jun |
Date Detail:
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Created Date: 2010-06-01 Completed Date: 2010-09-02 Revised Date: 2011-07-28 |
Medline Journal Info:
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Nlm Unique ID: 9815751 Medline TA: Nicotine Tob Res Country: England |
Other Details:
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Languages: eng Pagination: 658-64 Citation Subset: IM |
Affiliation:
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Chemistry and Drug Metabolism, Intramural Research Program, National Institute on Drug Abuse, National Institutes of Health, Baltimore, MD 21224, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Chromatography, Liquid Cotinine / analogs & derivatives, analysis, metabolism Female Humans Infant, Newborn Maternal-Fetal Exchange Meconium / chemistry*, metabolism* Nicotine / analysis*, metabolism* Pregnancy Pregnancy Trimesters Smoking / adverse effects*, metabolism* Tandem Mass Spectrometry Young Adult |
| Grant Support | |
ID/Acronym/Agency:
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R01 DA 013190/DA/NIDA NIH HHS |
| Chemical | |
Reg. No./Substance:
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27323-64-4/hydroxycotinine; 486-56-6/Cotinine; 54-11-5/Nicotine |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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