AI Insight
Researchers have identified that egg cells lacking a specific key protein are at higher risk of developing chromosomal abnormalities, particularly having incorrect chromosome numbers. An experimental treatment involving injection of messenger RNA (mRNA) that enables cells to produce this missing protein has been shown to reduce this risk by approximately 50%. This chromosomal error is particularly common in eggs from older women and is a major contributor to infertility and miscarriage.
Why it matters
This finding could lead to potential treatments to reduce age-related fertility problems and pregnancy loss in older women. If developed into a clinical application, the mRNA injection approach might improve success rates for women undergoing fertility treatments or trying to conceive naturally at advanced maternal ages.
Understand the Science
Egg cells missing a key protein may be more likely to end up with the wrong number of chromosomes, but an mRNA injection that helps the cells make the protein reduces the problem
Source: Injection halves risk of chromosome error common in older human eggs