title: Recent developments in meconium and hair testing methods for the confirmation of gestational exposures to alcohol and tobacco smoke.
abstract: The use of alcohol and tobacco is prevalent among pregnant women despite the well-known adverse effects of these substances imposed on the developing fetus and immense public health education efforts. Confirmation of gestational exposures to these compounds have relied mostly on maternal self-reporting, which is often underestimated because of guilt, embarrassment, and fear of punitive action. The presence of fatty acid ethyl esters in various biological matrices as a result of alcohol consumption initiated the development of neonatal screening tests for these emerging biological markers in meconium and hair. The levels of nicotine and cotinine in hair have long been used as objective indices for the quantification of exposure to active and passive smoking. Maternal segmental hair analysis in the study of pharmacokinetic changes in nicotine metabolism in the obstetric population is a novel application of this traditional analytical method. The latest developments and novel applications of meconium and hair testing for the confirmation of prenatal alcohol and tobacco exposure are discussed in this review.
authors.affiliation: The Hospital for Sick Children, Toronto, Ontario, Canada.
authors.forename: Daphne
authors.initials: D
authors.lastname: Chan
authors.forename: Daniela
authors.initials: D
authors.lastname: Caprara
authors.forename: Phillip
authors.initials: P
authors.lastname: Blanchette
authors.forename: Julia
authors.initials: J
authors.lastname: Klein
authors.forename: Gideon
authors.initials: G
authors.lastname: Koren
mesh_terms: D000428:Alcohol Drinking / Q000009:adverse effects*; D015415:Biomarkers / Q000032:analysis; D003367:Cotinine / Q000032:analysis / Q000493:pharmacokinetics; D004781:Environmental Exposure; D004952:Esters / Q000032:analysis; D000431:Ethanol / Q000032:analysis / Q000493:pharmacokinetics; D005227:Fatty Acids / Q000032:analysis; D005260:Female; D006197:Hair / Q000737:chemistry*; D006801:Humans; D007231:Infant, Newborn; D008431:Maternal-Fetal Exchange; D008470:Meconium / Q000737:chemistry*; D015997:Neonatal Screening / Q000379:methods; D009538:Nicotine / Q000032:analysis / Q000493:pharmacokinetics; D011247:Pregnancy; D011297:Prenatal Exposure Delayed Effects; D015203:Reproducibility of Results; D012907:Smoking / Q000009:adverse effects*; D014028:Tobacco Smoke Pollution / Q000032:analysis
chemical_list: D015415:Biomarkers; D004952:Esters; D005227:Fatty Acids; D014028:Tobacco Smoke Pollution; D000431:Ethanol; D009538:Nicotine; D003367:Cotinine