Abstract
Intrauterine growth retardation (IUGR) is also called fetal growth restriction (FGR), which is the major complications in obstetrics and one of the most important causation from high morbidity and mortality in perinatal. In this study, MS-HRM (Methylation-Sensitive High Resolution Melting Curve Analysis) was used to detect the methylation status of serum DNA. Gene of insulin-like growth factor binding protein 3 (IGFBP-3) was detected in this study. Results showed that the serum DNA methylation level of FGR fetus were lower than that of the control group; different methylation levels were also found between male and female fetus; and the methylation level was increased with the birth weight of the newborn. Our results showed that the IGFBP-3 gene methylation level of serum DNA of newborn could be semi-quantitative detected which guide the early prevention and treatment of IUGR. It also indicated that the methylation status of serum DNA can be conveniently identified and quantified by inspection of the melting curves.
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