Background: Fragile X-associated primary ovarian insufficiency (FXPOI), characterized by amenorrhea before age 40 years, occurs in 20% of female FMR1 premutation carriers. Presently, there are no molecular or biomarkers that can help predicting which FMR1 premutation women will develop FXPOI. We previously demonstrated that high FMR4 levels can discriminate between FMR1 premutation carriers with and without FXPOI. In the present study the relationship between the expression levels of FMR4 and the ovarian reserve markers was assessed in female FMR1 premutation carriers under age of 35 years.
Methods: We examined the association between FMR4 transcript levels and the measures of total antral follicle count (AFC) and serum anti-müllerian hormone (AMH) levels as markers of ovarian follicle reserve.
Results: Results revealed a negative association between FMR4 levels and AMH (r = 0.45) and AFC (r = 0.64). Statistically significant higher FMR4 transcript levels were found among those FMR1 premutation women with both, low AFCs and AMH levels.
Conclusions: These findings reinforce previous studies supporting the association between high levels of FMR4 and the risk of developing FXPOI in FMR1 premutation carriers.
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| http://dx.doi.org/10.1186/s13048-024-01425-0 | DOI Listing |
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- * About 42% of mothers with infants with FXS reported breastfeeding difficulties, primarily due to the child's perceived challenges, while the main reason for stopping among unaffected infants was personal choice, suggesting that infants with FXS have unique early needs that may benefit from targeted interventions.
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