IVF-conceived children show more 'jumping gene' DNA, study finds
Infertility affects more than 15% of couples worldwide. Thanks to medical science, infertility treatments have come a long way over the past few years. For millions of people, in vitro fertilization (IVF) has opened a medical pathway to having biological children. This procedure gives fertilization a helping hand outside the body. It involves retrieving eggs from the ovaries and fertilizing them…
In a study published in the American Journal of Obstetrics and Gynecology, researchers have discovered that children conceived through in vitro fertilization (IVF) have higher levels of a transposable element called LINE-1 DNA compared to those conceived naturally. Although IVF has been a successful method for millions of couples to have biological children, it has also raised concerns about the potential long-term health effects of children born through this procedure.
The study aimed to investigate if the stress experienced by embryos during IVF laboratory procedures could alter the movement of these DNA elements within the genome, which could potentially increase the risk of certain health conditions later in life. The researchers found that IVF-conceived babies had a higher overall amount of LINE-1 DNA in their genomes, specifically at 11 insertion and 14 deletion sites, where the two groups of babies differed.
These regions of altered L-1 insertion and deletion are located near genes that have been linked to metabolic conditions and cancer. While the study did not establish a direct causal relationship between IVF and increased disease risk, it provides evidence of a possible genomic mechanism that connects embryonic stress from IVF to higher disease risks.
Further research is needed to explore ways to optimize IVF protocols and minimize potential genomic consequences for the developing embryo.
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