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Updated: Jan 21, 2026
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Moderate Prenatal Alcohol Exposure and Quantification of Social Behavior in Adult Rats
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Developmental programming: Sex-specific programming of growth upon prenatal bisphenol A exposure
Arpita Kalla Vyas1, Almudena Veiga-Lopez2, Wen Ye3
1College of Medicine, California Northstate University, Elk Grove, California.
Journal of Applied Toxicology : JAT
|July 25, 2019
Summary
Prenatal exposure to bisphenol A (BPA) alters fetal organ development and postnatal growth in a sex-specific manner. These early-life changes in sheep suggest BPA impacts long-term reproductive and metabolic health.
Area of Science:
- Endocrinology
- Developmental Biology
- Toxicology
Background:
- Bisphenol A (BPA) is an endocrine-disrupting chemical found in plastics.
- In utero BPA exposure affects adult reproductive and metabolic health in humans and animals.
Purpose of the Study:
- To investigate the effects of prenatal BPA exposure on fetal organogenesis and growth trajectory.
- To determine if these effects are sex-specific.
Main Methods:
- Pregnant ewes received BPA subcutaneously from 30 to 90 days of gestation.
- Fetal organ weights, anthropometry, hormones, and postnatal growth were measured.
- Comparisons were made between BPA-exposed and control groups, analyzed by sex.
Main Results:
- BPA exposure led to sex-specific fetal weight differences and altered organ weights (e.g., reduced liver in females, increased heart/thyroid in males).
- Postnatal growth trajectories differed significantly between sexes in BPA-exposed offspring.
- Hormonal changes were minimal, suggesting direct developmental effects.
Conclusions:
- Prenatal BPA exposure significantly impacts fetal organ differentiation and growth in a sex-dependent manner.
- These early-life effects provide a potential mechanism for later-life reproductive and metabolic issues.
- The study highlights the translational relevance of in utero BPA exposure for offspring health.
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