College of Osteopathic Medicine Faculty Articles

Title

Tobacco Smoke Exposure and Somatic Mutation in Newborns

ISBN or ISSN

1874-3099

Publication Title

The Open Pediatric Medicine Journal

Volume

4

Publication Date / Copyright Date

6-1-2010

DOI Number

10.2174/1874309901004010010

Abstract

Maternal exposure to tobacco smoke is known to have deleterious effects on the developing fetus, but it has only recently been shown that there may be life-long consequences due to genotoxic damage. Analysis of newborn cord bloods with the GPA somatic mutation assay demonstrates a significant effect of maternal active smoking and suggests that similar mutational induction occurs in mothers who experience only secondary exposure to environmental tobacco smoke (ETS). Moreover, in both cases, mutational induction occurs by the same molecular mechanism, likely chromosome missegregation, resulting in an effective loss of one parental chromosome 4 and duplication of the other. These data also suggest that quitting smoking during pregnancy without actively avoiding secondary ETS exposure is not effective at protecting the unborn child from the genotoxic effects of tobacco smoke.

Disciplines

Medical Specialties | Medicine and Health Sciences | Osteopathic Medicine and Osteopathy

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