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Prenatal exposure to persistent organic pollutants and organophosphate pesticides, and markers of glucose metabolism at birth

Abstract : BackgroundExperimental evidence suggests that developmental exposure to persistent organic pollutants (POP) and to some non persistent pesticides may disrupt metabolic regulation of glucose metabolism and insulin secretion, and thereby contribute to the current epidemic of obesity and metabolic disorders. Quasi-experimental situations of undernutrition in utero have provided some information. However, the evidence in humans concerning the role of the prenatal environment in these disorders is contradictory, and little is known about long-term outcomes, such as type 2 diabetes, of prenatal exposure. Objectives Our aim was to evaluate the effects of prenatal exposure to POP and organophosphate pesticides on fetal markers of glucose metabolism in a sample of newborns from the Pelagie mother–child cohort in Brittany (France). Methods Dialkylphosphate (DAP) metabolites of organophosphate pesticides were measured in maternal urine collected at the beginning of pregnancy. Cord blood was assayed for polychlorinated biphenyl congener 153 (PCB153), p,p′-dichlorodiphenyl dichloroethene (DDE) and other POP. Insulin and adiponectin were determined in cord blood serum (n=268). Results A decrease in adiponectin and insulin levels was observed with increasing levels of DDE, but only in girls and not boys. Adiponectin levels were not related to the concentrations of other POP or DAP metabolites. Decreasing insulin levels were observed with increasing PCB153 concentrations. Insulin levels increased with DAP urinary levels. Additional adjustment for BMI z-score at birth modified some of these relations. Conclusions Our observations bring support for a potential role of organophosphate pesticides and POP in alterations to glucose metabolism observable at birth
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Contributor : Laurent Jonchère Connect in order to contact the contributor
Submitted on : Wednesday, January 27, 2016 - 9:51:55 AM
Last modification on : Sunday, June 26, 2022 - 4:27:58 AM
Long-term archiving on: : Thursday, April 28, 2016 - 11:21:28 AM



Anne Debost-Legrand, Charline Warembourg, Catherine Massart, Cécile Chevrier, Nathalie Bonvallot, et al.. Prenatal exposure to persistent organic pollutants and organophosphate pesticides, and markers of glucose metabolism at birth. Environmental Research, Elsevier, 2016, 146, pp.207--217. ⟨10.1016/j.envres.2016.01.005⟩. ⟨hal-01259218⟩



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