Letters Section Editor: Stephen J. Lurie,
MD, PhD, Senior Editor.
To the Editor: The use of objective biomarkers
can help to quantify exposure to environmental tobacco smoke (ETS).1 For instance, we have reported that cotinine concentrations
in cord serum can be used to assess exposure to prenatal ETS in newborns during
a period of several days,2 and that nicotine
concentrations in hair were related to infant exposure to ETS over a period
of months.3 The presence of nicotine and
cotinine in meconium has been associated with chronic exposure to ETS during
fetal life.4 In this study we investigate
whether nicotine and cotinine concentrations in deciduous teeth are related
to cumulative tobacco exposure from fetal life to the time the tooth is lost.
Garcia-Algar O, Vall O, Segura J, Pascual JA, Diaz D, Mutnoz L, Zuccaro P, Pacifici R, Pichini S. Nicotine Concentrations in Deciduous Teeth and Cumulative Exposure to Tobacco Smoke During Childhood. JAMA. 2003;290(2):196-197. doi:10.1001/jama.290.2.196