The study was conducted at Cengiz Gokcek Women's and Children's Hospital, Gaziantep, Turkey at department of obstetrics and gynecology between date of January 2018 and December 2018. The study protocol was designed according to the Declaration of Helsinki, and the institutional ethical review board of Gaziantep University approved the study (Reference number: 2018/91). One hundred twenty-five women enrolled in the study in four groups. The investigators consecutively recruited 61 pregnancies complicated with preeclampsia, and 64 healthy pregnancies will select for the control group. All participiants gave their oral and written informed consent before their inclusion in the study.
