The Role of Hormones and Toxoplasma gondii Infection to Change the Secondary Sex Ratio

The secondary sex ratio (SSR) is affected by many factors, including the concentration of hormones and infection with some pathogens such as Toxoplasma gondii. This study aimed to evaluate effect hormone variability concentrations toxoplasmosis on ratio. 150 pregnant women were selected, 60 infected late (LT), early (ET) 30 seronegative toxoplasmosis. After tracking birth outcomes these women, we calculated SSR in each group. During second third trimesters pregnancy, estrogen, testosterone, progesterone, TSH, T4 T3 measured. results three groups compared. showed that female births outpaced LT group, equal (0.9:1.45), while number male was higher ET group groups, (1.5:1; 1.3:1), respectively. difference significant at P ≥ 0.05. In progesterone estrogen increased significantly than women. Testosterone all groups. TSH level highest among superiority significant. Male superior conclusion, T. gondii has an indirect role SSR. Important pregnancy levels differ between o