Effects of maternal bisphenol A diglycidyl ether exposure during gestation and lactation on behavior and brain development of the offspring

Food and Chemical Toxicology : an International Journal Published for the British Industrial Biological Research Association
Ikuko MiyazakiMasato Asanuma

Abstract

Bisphenol A diglycidyl ether (BADGE) is an epoxy resin used for the inner coating of canned food and beverages. BADGE can easily migrate from the containers and become a contaminant. In this study, we examined the effects of BADGE exposure to the dams on the behavioral, structural, and developmental abnormalities in the offspring. Female pregnant mice were fed with a diet containing BADGE (0.15 or 1.5 mg/kg/day) during gestation and lactation periods. In an open field test, the time spent in the corner area significantly increases in male mice of high-dose BADGE group at 5 weeks old. The histological analysis using offspring brain at postnatal day 1 delivered from BADGE (1.5 mg/kg/day)-treated dams demonstrates that positive signals of Forkhead box P2- and COUP-TF interacting protein 2 are restricted in each cortical layer, but not in the control brain. In addition, the maternal BADGE exposure reduces nestin-positive fibers of the radial glia and T-box transcription factor 2-positive intermediate progenitors in the inner subventricular zone. Furthermore, a direct BADGE exposure promotes neurite outgrowth and neuronal connection in the primary cultured cortical neurons. These data suggest that maternal BADGE exposure can acceler...Continue Reading

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