Diagnostic significance of autoantibody combination in fetal growth restriction with early and late manifestation

BACKGROUND: Fetal growth restriction (FGR) is one of the current problems in modern obstetrics and perinatology, which is associated with a large number of adverse perinatal outcomes. 
AIM: This study aimed to assess the diagnostic significance of the combination of autoantibodies (AAB) in the early and late FGR manifestation. 
MATERIALS AND METHODS: The study involved 117 pregnant women, classified into Group 1 (90 women with FGR) and Group 2 (27 women with a physiological course of pregnancy). Pregnant women with FGR were divided into two subgroups depending on the time of manifestation, i.e. FGR subgroups with early and late manifestation (45 patients each), respectively. Upon hospital admission, all patients of the study groups had blood sampling to determine autoimmune AABs using the ELI-P-test. 
RESULTS: An isolated increase in AABs to human chorionic gonadotropin (hCG) antigen, TrM (AAB markers of changes in vascular and hemostasis system), S100 protein, antineutrophil cytoplasm antibodies (ANCA), and KiMS (AABs to the cytoplasmic antigen of glomerular kidney cells) were observed in the early FGR manifestation when comparing the abnormal AAB spectrum in the early and late FGR manifestation, while a statistically significant isolated increase in the level of AABs to DNA and insulin was found in the late FGR manifestation. 
CONCLUSIONS: The study revealed the diagnostic significance of AAB combinations, as well as the combinations of increased AAB levels to hCG, S100, ANCA, and KiMS and an increase in AABs to DNA, collagen, and S100 protein in the early and late FGR manifestation, respectively.