Fertility and Markers of Male Reproductive Function in Inuit and European Populations Spanning Large Contrasts in Blood Levels of Persistent Organochlorines
2008

Impact of Persistent Organic Pollutants on Male Reproductive Function

Sample size: 2269 publication 10 minutes Evidence: moderate

Author Information

Author(s): Bonde Jens Peter, Toft Gunnar, Rylander Lars, Rignell-Hydbom Anna, Giwercman Aleksander, Spano Marcello, Manicardi Gian Carlo, Bizzaro Davide, Ludwicki Jan K., Zvyezday Valentina, Bonefeld-Jørgensen Eva C., Pedersen Henning Sloth, Jönsson Bo A.G., Thulstrup Ane Marie

Primary Institution: Åarhus University Hospital

Hypothesis

Do persistent organic pollutants (POPs) interfere with male reproductive function?

Conclusion

POPs may interfere with male reproductive function without major impact on fertility.

Supporting Evidence

  • High levels of CB-153 were associated with decreased sperm motility.
  • Men with short androgen receptor CAG repeat lengths showed lower sperm counts with high CB-153 levels.
  • Fertility was not significantly affected by POPs in most populations except for Inuits.

Takeaway

This study looked at how certain chemicals in the environment might affect men's ability to have babies. It found that while these chemicals can harm sperm, they don't seem to stop men from getting their partners pregnant.

Methodology

The study combined interviews and biological data from 2,269 women and their spouses across four regions, focusing on time to pregnancy and male reproductive hormones.

Potential Biases

Potential confounding factors may not have been fully controlled, and the strong correlation between different pollutants complicates attribution of effects.

Limitations

The study's exploratory nature and the lack of strong a priori hypotheses may lead to spurious associations.

Participant Demographics

Participants included pregnant women and their male partners from Greenland, Poland, Ukraine, and Sweden.

Statistical Information

P-Value

p<0.05

Confidence Interval

95% CI, 1.7–5.6

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1289/ehp.10700

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