Extremely low-frequency electromagnetic field exposure alters DNA methylation levels in the endometrium of pigs during the peri-implantation period.
This in vitro study exposed porcine endometrial slices from the peri-implantation period (days 15–16 of pregnancy) to 50 Hz ELF-EMF for 2 hours and assessed promoter DNA methylation in selected genes. The authors report increased methylation for EGR2, ID2, and PTGER4, decreased methylation for IL1RAP and NOS3, and no change for five other genes tested. They conclude ELF-EMF may alter endometrial DNA methylation and suggest this could affect implantation-related processes.
Key points
- Porcine endometrial slices were exposed in vitro to 50 Hz ELF-EMF for 2 hours during the peri-implantation period.
- DNA methylation was measured in promoter regions using qMS-PCR.
- Promoter methylation increased for EGR2, ID2, and PTGER4 after ELF-EMF exposure.
- Promoter methylation decreased for IL1RAP and NOS3 after ELF-EMF exposure.
- No methylation changes were reported for HSD17B2, MRAP2, SERPINE1, VDR, and ZFP57.
- The authors interpret these methylation changes as potentially relevant to endometrial transcriptomic regulation during implantation.
Referenced studies & papers
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AI-generated summaries may be incomplete or incorrect. This content is for informational purposes only and is not medical advice.
AI-generated summaries may be incomplete or incorrect. This content is for informational purposes only and is not medical advice.
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