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Serial Free Bisphenol A and Bisphenol A Glucuronide Concentrations in Neonates.
Nachman, Rebecca M; Fox, Stephen D; Golden, W Christopher; Sibinga, Erica; Groopman, John D; Lees, Peter S J.
Afiliação
  • Nachman RM; Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD.
  • Fox SD; Cancer Research Technology Program, Leidos Biomedical Research, Inc, Frederick National Laboratory for Cancer Research, Frederick, MD.
  • Golden WC; Eudowood Neonatal Pulmonary Division, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD.
  • Sibinga E; Division of General Pediatrics and Adolescent Medicine, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD.
  • Groopman JD; Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD.
  • Lees PS; Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD.
J Pediatr ; 167(1): 64-9, 2015 Jul.
Article em En | MEDLINE | ID: mdl-25921439
OBJECTIVE: To determine the balance of metabolism of free bisphenol A (BPA) to the inactive conjugate, BPA glucuronide (BPAG), in neonates. STUDY DESIGN: Free BPA and BPAG concentrations were measured in 78 urine samples collected between December 2012 and August 2013 from a cohort of 44 healthy full term (≥ 37 weeks' gestation) neonates at 2 intervals (3-6 days and 7-27 days of age). A questionnaire was administered at the time of sample collection. Neonates recruited into the study were born in an urban, tertiary care hospital. RESULTS: Only BPAG was detected in the urine samples; concentrations ranged from <0.1 µg/L to 11.21 µg/L (median: 0.27 µg/L). Free BPA concentrations were below the limit of quantification of 0.1 µg/L. Age, but not sex or type of diet, was significantly associated with urinary BPAG concentration (P = .002). CONCLUSIONS: Our results illustrate widespread BPA exposure in healthy full-term neonates and efficient conjugation of BPA to its readily excretable and biologically inactive form (BPAG) as early as 3 days of age. Factors other than type of diet may be important contributors to BPA exposure in neonates.
Assuntos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Fenóis / Compostos Benzidrílicos / Glucuronídeos Limite: Female / Humans / Male / Newborn Idioma: En Revista: J Pediatr Ano de publicação: 2015 Tipo de documento: Article País de publicação: Estados Unidos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Fenóis / Compostos Benzidrílicos / Glucuronídeos Limite: Female / Humans / Male / Newborn Idioma: En Revista: J Pediatr Ano de publicação: 2015 Tipo de documento: Article País de publicação: Estados Unidos