Xenoestrogenic Activity in Blood of European and Inuit Populations
Author Information
Author(s): Eva C Bonefeld-Jorgensen, Philip S Hjelmborg, Thayaline S Reinert, Birgitte S Andersen, Vladimir Lesovoy, Christian H Lindh, Lars Hagmar, Alexander Giwercman, Mogens Erlandsen, Gian-Carlo Manicardi, Marcello Spanò, Gunnar Toft, Jens Peter Bonde
Primary Institution: Unit of Cellular and Molecular Toxicology, Department of Environmental and Occupational Medicine, Institute of Public Health, University of Aarhus, Denmark
Hypothesis
A potential determinant of POP bioaccumulation might also be a potential determinant for serum xenoestrogenic activity.
Conclusion
The study found no strong consistent association between xenoestrogenic activity and the two POP markers, suggesting that these markers alone cannot predict integrated xenoestrogenic serum activity.
Supporting Evidence
- 71% of Inuit serum samples antagonized xenoestrogenic activity compared to 7-30% in European samples.
- Xenoestrogenic activity was negatively associated with levels of CB-153 and p,p'-DDE in Inuit samples.
- Significant differences in xenoestrogenic activity were found between Inuit and European study groups.
Takeaway
This study looked at how certain chemicals in the blood might affect hormones in men from different regions, finding that the effects vary a lot depending on where you live.
Methodology
The study compared xenoestrogenic activity in serum from men in different populations and evaluated correlations with POP biomarkers using MVLN human breast cancer cell line assays.
Potential Biases
There may be risks of bias due to the selection of participants and the variability in exposure to POPs across different regions.
Limitations
The study had limitations in sample size for some analyses and potential confounding factors that were not fully accounted for.
Participant Demographics
Participants included 358 men from Greenland, Sweden, Warsaw (Poland), and Kharkiv (Ukraine), with varying ages and lifestyle factors.
Statistical Information
P-Value
0.02
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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