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Detection of Smoking-Related Covalent DNA Adducts in Human Placenta

Everson, Richard B., Randerath, Erika, Santella, Regina M., Cefalo, Robert C., Avitts, Tommie A., Randerath, Kurt·1986·Science

Abstract

The presence of covalent DNA chemical addition products (adducts) in human term placentas was investigated by recently developed immunologic and 32P-postlabeling assays. DNA from placental specimens of smokers showed a small but not statistically significant increase in adduct levels when tested by antibodies to DNA modified with a benzo[ a ]pyrene dihydrodiol epoxide (BPDE-I), the ultimate carcinogenic derivative of benzo[ a ]pyrene. The postlabeling assay detected several modified nucleotides, one of which (adduct 1) strongly related to maternal smoking during pregnancy. This adduct was present in placental tissue from 16 of 17 smokers, but only 3 of 14 nonsmokers. Among smokers, levels of adduct 1 in general were only weakly related to questionnaire and biochemical measures of the intensity of smoking exposures, which suggests modulation by individual susceptibility factors. The adduct seemed to be derived from an aromatic carcinogen, but it may not result from several of the most intensely studied polycyclic aromatic hydrocarbons or aromatic amines in tobacco smoke. The data show the association of cigarette smoking with covalent damage to human DNA in vivo.

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Metadata

Authors
Everson, R. B., Randerath, E., Santella, R. M., Cefalo, R. C., Avitts, T. A., & Randerath, K.
Venue
Science
Published
1986-01-03
Volume
231
Issue
4733
Pages
54-57
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W1981008066
Cited by
257
References
0
FWCI
11.59
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Detection of Smoking-Related Covalent DNA Adducts in Human Placenta. https://app.cochat.ai/papers/10.1126/science.3941892
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Everson, R. B., Randerath, E., Santella, R. M., Cefalo, R. C., Avitts, T. A., & Randerath, K. (1986). Detection of Smoking-Related Covalent DNA Adducts in Human Placenta. Science. https://doi.org/10.1126/science.3941892

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