Blood bisphenol A concentration in patient with infertility affects in vitro fertilization outcomes
Aim. To analyze the relationship between bisphenol A levels in the blood of patients with infertility and in vitro fertilization (IVF) outcomes. Materials and methods. Infertility treatment of 301 married couples was performed using IVF. The level of bisphenol A in the blood of patients was determined by gas chromatography-mass spectrometry. The influence of bisphenol A levels on parameters of early embryogenesis and outcomes of IVF programs was assessed. Results. Bisphenol A was detected in 92.9% (277/298) blood samples of women and in 92.7% (141/154) blood samples of men. Bisphenol A levels in women had a statistically significant positive correlation with the level of bisphenol A in their spouses (r=0.533, p0.0001). No differences were found in the main parameters of early embryogenesis and pregnancy rates in quartile bisphenol A subgroups in women and men. There was a trend towards an increase in the miscarriage rate with an increase in the level of bisphenol A. The threshold level of bisphenol A that increased the miscarriage rate was 0.9 ng/ml for women and 0.4 ng/ml for men. With an increase in the threshold level of bisphenol A in both spouses (men 0.4 ng/ml and women 0.9 ng/ml), the odds ratio for miscarriage after IVF 8.8 (95% confidence interval 0.88113.08). Conclusions. Bisphenol A was found in the majority of infertile patients. A significant positive correlation was noted between the level of bisphenol A in patients and their spouses. An increase in the level of bisphenol A in the blood is associated with an increased risk of early reproductive losses after IVF, which requires further research.
The ultrastructure of human cumulus-corona cells at the time of fertilization and early embryogenesis. A scanning and transmission electron microscopic study in an in vitro fertilization program.
