Prenatal Exposure to Phenols and Growth in Boys

Details

• Alternative Title:
  Epidemiology
• Personal Author:
  Philippat, Claire ; Botton, Jérémie ; Calafat, Antonia M. ; Ye, Xiaoyun ; Charles, Marie-Aline ; Slama, Rémy
• Corporate Authors:
  EDEN Study Group
• Description:
  Background
  
  Phenols interact with nuclear receptors implicated in growth and adipogenesis regulation. Only a few studies have explored their effects on growth in humans.
  
  Objectives
  
  We studied the associations of maternal exposure to phenols during pregnancy with prenatal and postnatal growth of male newborns.
  
  Methods
  
  Within a cohort of women recruited during pregnancy, we selected 520 mother–son pairs and quantified 9 phenols in spot urine samples collected during pregnancy. We used ultrasonography during pregnancy, together with birth measurements, to assess fetal growth. We modeled individual postnatal growth trajectories from repeated measures of weight and height in the first 3 years of life.
  
  Results
  
  Triclosan concentration was negatively associated with growth parameters measured at the third ultrasound examination but not earlier in pregnancy. At birth, this phenol tended to be negatively associated with head circumference (−1.2 mm for an interquartile range [IQR] increase in ln-transformed triclosan concentration [95% confidence interval = −2.6 to 0.3]) but not with weight or height. Parabens were positively associated with weight at birth. This positive association remained for 3 years for methylparaben (β = 193 g [−4 to 389]) for an IQR increase in ln-transformed concentrations.
  
  Conclusion
  
  We relied on only 1 spot urine sample to assess exposure; because of the high variability in phenol urinary concentrations reported during pregnancy, using only 1 sample may result in exposure misclassification, in particular for bisphenol A. Our study suggested associations between prenatal exposure to parabens and triclosan and prenatal or early postnatal growth.
  
  
• Subjects:
  Adult Article Birth Weight Body Height Child, Preschool Child Development Cohort Studies Environmental Pollutants Female Fetal Development Humans Infant Infant, Newborn Linear Models Male Maternal Exposure Phenols Pregnancy Prenatal Exposure Delayed Effects Ultrasonography, Prenatal Weight Gain

  More +
• Source:
  Epidemiology. 25(5):625-635.
• Pubmed ID:
  25061923
• Pubmed Central ID:
  PMC4724208
• Document Type:
  Journal Article
• Funding:
  CC999999/Intramural CDC HHS/United States
• Volume:
  25
• Issue:
  5
• Collection(s):
  CDC Public Access
• Main Document Checksum:
  urn:sha256:4725356db4c6cb169eeebfdf4e232b20b5aada1ac5c9a46846645efa05d45f53
• Download URL:
  https://stacks.cdc.gov/view/cdc/37618/cdc_37618_DS1.pdf
• File Type:
  [PDF - 805.57 KB ]