Women with maternal age ≥ 18 years, singleton pregnancy, primipara, no smoking, confirmed gestation≤20 weeks and spontaneous conception were invited to participate in the study,and excluded if they had multiple pregnancy, pre-gestational diabetes mellitus, hypertensive disorders, preterm delivery, cardiovascular disease, immunological disease, glucocorticoid therapy, or other severe illness,and fetal abnormalities occurred during pregnancy were also excluded from the study.GDM was verified on the 75gOGTT at 24-28 gestational weeks.The diagnosis of GDM is made when any of the following plasma glucose values are met or exceeded: FPG≥5.1 mmol/L and/or 1h-PG ≥10.0 mmol/L and/or 2h-PG ≥8.5 mmol/ L.

Women with maternal age ≥ 18 years, singleton pregnancy, primipara, no smoking, confirmed gestation≤20 weeks and spontaneous conception were invited to participate in the study. Women were excluded if they had multiple pregnancy, pre-gestational diabetes mellitus (PGDM), hypertensive disorders, preterm delivery, cardiovascular disease, immunological disease, glucocorticoid therapy, or other severe illness. if there were fetal abnormalities including chromosomally abnormal fetuses and/or structural defects and fetal growth restriction occurred during pregnancy were also excluded from the study.GDM was verified on the 75gOGTT at 24-28 gestational weeks.those who not met the criteria were the NCT group.

oral glucose tolerance test (OGTT) was conducted on all participants between the 24th and 28th gestation weeks.The diagnosis of GDM is made when any of the following plasma glucose values are met or exceeded: FPG≥5.1 mmol/L and/or 1h-PG ≥10.0 mmol/L and/or 2h-PG ≥8.5 mmol/ L.

Serum PTX3 levels in early pregnancy