American journal of reproductive immunology (New York, N.Y. : 1989) · 2023
Evaluation of the angiogenic factors sFlt-1, PlGF, and the sFlt-1/PlGF ratio in preeclampsia and associated features.
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Gannoun Marwa Ben Ali, Mehdi Meriem, Zitouni Hedia, Boussabah Manel, Zouari Ines, Jlali Ali, Almawi Wassim Y
Аннотация
PROBLEM: Soluble Fms-like tyrosine kinase-1 (sFLT-1) and placental growth factor (PlGF) were previously reported to play a key role in the pathogenesis of preeclampsia (PE). We tested the link between altered PlGF and sFLT-1 levels, and their ratio (sFlt-1/PlGF) with PE and PE-associated featured in Tunisian PE cases and age- and BMI-matched normotensive women.
METHOD OF STUDY: Peripheral blood specimens from 88 women with PE, and 60 control women were tested for PlGF and sFLT by commercially available ELISA.
RESULTS: Significant increases in sFlt-1 levels and in the sFlt-1/PlGF ratio, more than changes in PlGF levels were noted in PE subjects when compared to control women. Elevation in sFlt-1 and sFlt-1/PlGF ratio was observed at different percentile values in PE cases. The receiver operating characteristic (ROC) area under the curve (AUC) for sFlt-1, PlGF, and sFlt-1/PlGF ratio were 0.869 ± 0.031, 0.463 ± 0.048, and 0.759 ± 0.039, respectively. A systematic shift in sFlt-1, but not in PlGF, distributions for higher values occurred in PE subjects. A progressive increase in the adjusted OR paralleled increased sFlt-1 and the sFlt-1/PlGF ratio percentile values; no similar trend was noted for the PlGF percentiles. Increased sFlt-1 levels and sFlt-1/PlGF ratio were significantly correlated with dysmenorrhea, hypertension, baby weight, and C-section. In contrast, no correlation was found between PlGF and the PE-associated features tested.
CONCLUSIONS: Increased sFlt-1 levels and corresponding sFlt-1/PlGF ratio, but not circulating PlGF levels, constitute an independent risk factor for PE.
METHOD OF STUDY: Peripheral blood specimens from 88 women with PE, and 60 control women were tested for PlGF and sFLT by commercially available ELISA.
RESULTS: Significant increases in sFlt-1 levels and in the sFlt-1/PlGF ratio, more than changes in PlGF levels were noted in PE subjects when compared to control women. Elevation in sFlt-1 and sFlt-1/PlGF ratio was observed at different percentile values in PE cases. The receiver operating characteristic (ROC) area under the curve (AUC) for sFlt-1, PlGF, and sFlt-1/PlGF ratio were 0.869 ± 0.031, 0.463 ± 0.048, and 0.759 ± 0.039, respectively. A systematic shift in sFlt-1, but not in PlGF, distributions for higher values occurred in PE subjects. A progressive increase in the adjusted OR paralleled increased sFlt-1 and the sFlt-1/PlGF ratio percentile values; no similar trend was noted for the PlGF percentiles. Increased sFlt-1 levels and sFlt-1/PlGF ratio were significantly correlated with dysmenorrhea, hypertension, baby weight, and C-section. In contrast, no correlation was found between PlGF and the PE-associated features tested.
CONCLUSIONS: Increased sFlt-1 levels and corresponding sFlt-1/PlGF ratio, but not circulating PlGF levels, constitute an independent risk factor for PE.