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Breast Milk Enhances Growth of Enteroids: An Ex Vivo Model of Cell Proliferation
Published on: February 15, 2018
[Breast milk studies in the Bitterfeld district]
C Doering1, B Thriene, H Oppermann
1Hygieneinstitut Sachsen-Anhalt Magdeburg.
Summary
Human milk pesticide contamination decreased in Bitterfeld county, Germany, following environmental measures. While DDT and beta-hexachlorocyclohexane (beta-HCH) levels remained higher than in West Germany, overall human milk contamination significantly reduced.
Area of Science:
- Environmental Science
- Toxicology
- Public Health
Context:
- Follow-up environmental medical tests conducted in Bitterfeld county, Germany, in 1996.
- Previous studies in 1990 and 1993 indicated significant pesticide contamination in human milk.
- Focus on chlorinated hydrocarbons, including DDT, HCH, HCB, and PCBs.
Purpose:
- To assess trends in human milk contamination by pesticide residues after three years of environmental protection measures.
- To evaluate the effectiveness of sanitary and environmental protection measures in reducing contaminant levels.
- To compare current contamination levels with historical data and established tolerable concentrations.
Summary:
- Analysis of 106 human milk samples revealed a significant reduction in overall contamination by chlorinated hydrocarbons compared to 1990 and 1993.
- Major decreases observed in Polychlorinated Biphenyls (PCBs), beta-hexachlorocyclohexane (beta-HCH), and hexachlorobenzene (HCB) concentrations.
- While DDT and DDE levels showed mixed trends (DDT decreased, DDE increased), overall contaminant levels did not exceed tolerable limits with a safety factor of 10, but some exceeded limits with a safety factor of 100.
Impact:
- Demonstrates a positive impact of environmental protection measures on reducing human body burden of persistent organic pollutants.
- Highlights the ongoing challenge of legacy contaminants like DDE, possibly due to metabolic processes.
- Provides valuable data for public health policy and environmental monitoring in industrialized regions.

