Urine bisphenol A and pubertal development in boys.
Ziliang Wang1, Dekun Li2, Maohua Miao3
1School of Public Health, Fudan University, Shanghai, China; Key Lab. of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, Shanghai, China.
International Journal of Hygiene and Environmental Health
|October 23, 2016
Summary
Exposure to Bisphenol A (BPA) in boys is linked to earlier pubertal onset but delayed pubertal progression. Further longitudinal studies are recommended to confirm these findings on male pubertal development.
Area of Science:
- Endocrinology
- Environmental Health
- Pediatric Development
Background:
- Bisphenol A (BPA) is a widespread environmental endocrine disruptor found in consumer products.
- Animal studies suggest BPA may disrupt male pubertal development, but human data is limited.
Purpose of the Study:
- To investigate the association between Bisphenol A (BPA) exposure and pubertal onset and progression in school-aged boys.
- To analyze the relationship between urinary BPA levels and various pubertal milestones.
Main Methods:
- Cross-sectional study of 671 boys aged 9-18 years in Shanghai.
- Assessment of Tanner stages for genital and pubic hair development, and testicular volume by a trained physician.
- Urine samples analyzed for peripubertal BPA levels; Poisson multivariate regression used to assess associations.
Main Results:
- Moderate BPA exposure was associated with earlier onset of genital and pubic hair development (PRs 1.31 and 1.28, respectively).
- A trend towards earlier testicular development onset was observed, though not statistically significant.
- Moderate BPA exposure was linked to delayed late-stage genital development (PR 0.78) and suggested delayed testicular progression.
Conclusions:
- Peripubertal BPA exposure is associated with both earlier pubertal onset and delayed pubertal progression in boys.
- Longitudinal studies are necessary to validate these findings and understand the long-term effects on male pubertal development.
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