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Dietary benzo(a)pyrene intake during pregnancy and birth weight: associations modified by vitamin C intakes in the Norwegian Mother and Child Cohort Study (MoBa).

https://arctichealth.org/en/permalink/ahliterature107027
Source
Environ Int. 2013 Oct;60:217-23
Publication Type
Article
Date
Oct-2013
Author
Talita Duarte-Salles
Michelle A Mendez
Helle Margrete Meltzer
Jan Alexander
Margaretha Haugen
Author Affiliation
Division of Environmental Medicine, Norwegian Institute of Public Health, Oslo, Norway. Electronic address: duartesallest@fellows.iarc.fr.
Source
Environ Int. 2013 Oct;60:217-23
Date
Oct-2013
Language
English
Publication Type
Article
Keywords
Adult
Ascorbic Acid - pharmacology
Benzo(a)pyrene - administration & dosage - analysis - toxicity
Birth Weight - drug effects
Child
Cohort Studies
Diet - statistics & numerical data
Female
Fetal Development - drug effects
Food - classification
Food Contamination - analysis - statistics & numerical data
Heredodegenerative Disorders, Nervous System - chemically induced
Humans
Infant
Maternal Exposure - statistics & numerical data
Microphthalmos - chemically induced
Multivariate Analysis
Mutagenicity Tests
Norway - epidemiology
Parity
Polycyclic Hydrocarbons, Aromatic - toxicity
Pregnancy
Pregnancy Outcome - epidemiology
Prenatal Exposure Delayed Effects - epidemiology
Abstract
Maternal exposure to polycyclic aromatic hydrocarbons (PAH) during pregnancy has been associated with reduced fetal growth. However, the role of diet, the main source of PAH exposure among non-smokers, remains uncertain.
To assess associations between maternal exposure to dietary intake of the genotoxic PAH benzo(a)pyrene [B(a)P] during pregnancy and birth weight, exploring potential effect modification by dietary intakes of vitamins C, E and A, hypothesized to influence PAH metabolism.
This study included 50,651 women in the Norwegian Mother and Child Cohort Study (MoBa). Dietary B(a)P and nutrient intakes were estimated based on total consumption obtained from a food frequency questionnaire (FFQ) and estimated based on food composition data. Data on infant birth weight were obtained from the Medical Birth Registry of Norway (MBRN). Multivariate regression was used to assess associations between dietary B(a)P and birth weight, evaluating potential interactions with candidate nutrients.
The multivariate-adjusted coefficient (95%CI) for birth weight associated with maternal energy-adjusted B(a)P intake was -20.5g (-31.1, -10.0) in women in the third compared with the first tertile of B(a)P intake. Results were similar after excluding smokers. Significant interactions were found between elevated intakes of vitamin C (>85mg/day) and dietary B(a)P during pregnancy for birth weight (P
PubMed ID
24071023 View in PubMed
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