No abstract

0.67 *chi-square testIf deliveries by planned Cesarean section and deliveries following induced labor are excluded, 872 twin pairs remain, where 28.6% were MMP, 44.6% were MFP and 26.8% were FFP. Mean GA at delivery was 246.8 days (SD 20.4) for MMP, 245.5 days (SD 21.8) for MFP and 246.2 days (SD 21.2) for FFP (p>0.05). The distribution of preterm and very preterm births was similar in the three groups. Conclusions: Mean GA at birth does not seem to be correlated to fetal gender in twin pregnancies.

No abstract

The aim of this study was to assess oxidative stress in pregnant women infected with cytomegalovirus on the basis of 3-nitrotyrosine levels in amniotic fluid (AF). The 3-nitrotyrosine (3-NT) level in AF was measured using the competitive ELISA method. The study groups were as follows: group I consisted of women with IgM and/or IgA; group II were women with only IgG anti-CMV antibodies and group III were seronegative women, used as the control group. Age, gestational age and socioeconomic status were also assessed. The average level of 3-nitrotyrosine in group II and the control group was similar: 53.14 nM 3-NT and 49.78 nM 3-NT, respectively. However, in group I, the lowest level 3-NT in AF was observed - 39.17 nM 3-NT and statistical analysis showed significant differences in levels of 3-NT between group I and the control group (p < 0.01). We conclude that significantly lower levels of 3-nitrotyrosine in pregnant women with CMV infection may indicate an increase in the antioxidant defence mechanisms in these patients.