Long term transcriptional and behavioral effects in mice developmentally exposed to a mixture of endocrine disruptors associated with delayed human neurodevelopment.

Scientific Reports
Anastasia RepouskouAntonios Stamatakis

Abstract

Accumulating evidence suggests that gestational exposure to endocrine disrupting chemicals (EDCs) may interfere with normal brain development and predispose for later dysfunctions. The current study focuses on the exposure impact of mixtures of EDCs that better mimics the real-life situation. We herein describe a mixture of phthalates, pesticides and bisphenol A (mixture N1) detected in pregnant women of the SELMA cohort and associated with language delay in their children. To study the long-term impact of developmental exposure to N1 on brain physiology and behavior we administered this mixture to mice throughout gestation at doses 0×, 0.5×, 10×, 100× and 500× the geometric mean of SELMA mothers' concentrations, and examined their offspring in adulthood. Mixture N1 exposure increased active coping during swimming stress in both sexes, increased locomotion and reduced social interaction in male progeny. The expression of corticosterone receptors, their regulator Fkbp5, corticotropin releasing hormone and its receptor, oxytocin and its receptor, estrogen receptor beta, serotonin receptors (Htr1a, Htr2a) and glutamate receptor subunit Grin2b, were modified in the limbic system of adult animals, in a region-specific, sexually-dimo...Continue Reading

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Citations

Dec 23, 2020·Neurotoxicology·Vanessa NaffaaAnne-Laure Schang
Mar 22, 2021·Best Practice & Research. Clinical Endocrinology & Metabolism·Ioannis BakoyiannisAntonios Stamatakis
Dec 9, 2021·Toxicological Sciences : an Official Journal of the Society of Toxicology·Robert BaroukiDenis Sarigiannis

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Methods Mentioned

BETA
PCA
ELISA

Software Mentioned

Ethovision XT -
PrimerBank

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