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Abstract Title:

Adipogenic effects of prenatal exposure to bisphenol S (BPS) in adult F1 male mice.

Abstract Source:

Sci Total Environ. 2020 Apr 19 ;728:138759. Epub 2020 Apr 19. PMID: 32403013

Abstract Author(s):

Young-Ah Ahn, Hwayoung Baek, Miso Choi, Junbo Park, Soo Jin Son, Hyun Ju Seo, Jaeyun Jung, Je Kyung Seong, Jaehyouk Lee, Sungkyoon Kim

Article Affiliation:

Young-Ah Ahn

Abstract:

Bisphenol S (BPS) has been increasingly used as a substitute for bisphenol A (BPA), a known endocrine disruptor. Early-life exposure to BPA affects fetal development and the risk of obesity in adolescence and adulthood. However, the effects of fetal exposure BPS in later life are unknown. This study aimed to investigate the effects of prenatal BPS exposure on adiposity in adult F1 mice. Pregnant C57BL/6 N mice were exposed to BPS (0, 0.05, 0.5, 5, and 50 mg/kg/d) via drinking water from gestation day 9 until delivery. Thereafter, two groups of offspring (6 weeks old) were either administered a standard diet (STD) or a high-fat diet (HFD) for 4 weeks until euthanasia. The body weight and gonadal white adipose tissue (gWAT) mass were determined, and the energy expenditure for the adiposity phenotype was computed especially for male mice, followed by histological analysis of the gWAT. Thereafter, the expression levels of adipogenic marker genes (Pparg, Cebpa, Fabp4, Lpl, and Adipoq) were analyzed in the gWAT via reverse-transcription PCR analysis. BPS-exposed male mice displayed apparent gWAT hypertrophy, consistent with the significant increase in adipocyte size in the gWAT and upregulation of Pparg and its direct target genes among HFD mice in comparison with the control mice. Theseresults suggest that prenatal BPS exposure potentially increases the susceptibility to HFD-induced adipogenesis in male adult mice.

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