Tissue factor-dependent pathway in severe preeclampsia revisited: a Brazilian cohort study
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Universidade Federal de Minas Gerais
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Artigo de periódico
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Membros da banca
Resumo
Previously we investigated the tissue factor (TF)-dependent coagulation pathway and key haemostatic cofactors in white women with preeclampsia (P-EC) and suggested that plasma factor VII (FVII) levels can differentiate women with P-EC from healthy nonpregnant women or normal pregnant women, at the same trimester, with high sensitivity, specificity, positive and negative predictive values. Here we re-examine the TF-dependent pathway in a large cohort of Brazilian women. A total of 240 women were studied. These included healthy nonpregnant women (n = 79), normotensive pregnant women (n = 80) and women with severe P-EC (n = 81). Commercially available enzyme-linked immunosorbent assays were used to measure plasma FVII, activated factor VII (FVIIa), TF and tissue factor pathway inhibitor (TFPI). All study participants were matched for age. Pregnant women (with/without P-EC) were matched for gestational age and parity. Plasma levels of FVII, FVIIa and TFPI were significantly increased in women with severe P-EC compared with healthy nonpregnant women (P < 0.01) or normotensive pregnant women (P < 0.01). FVIIa was also higher in normotensive pregnant women compared with nonpregnant women (P < 0.01). However, no such significant trends were observed for plasma TF levels (P = 0.074). In conclusion, circulating FVII, FVIIa and TFPI were significantly elevated in women with severe P-EC in the absence of comparable changes in plasma TF levels. The present work is in agreement with our previous report on FVII levels in white women with P-EC. Thus, this lends further support to the notion that plasma FVII levels are potentially valuable diagnostic marker for P-EC, irrespective of ethnicity.
Abstract
Assunto
Sangue, Fator VII, Fator VIIa, Plasma, Pré-eclâmpsia, Complicações na gravidez, Tromboplastina
Palavras-chave
Blood, Factor VII, Factor VIIa, Plasma, Preeclampsia, Pregnancy complications, Tissue factor, Tissue factor pathway inhibitor
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Endereço externo
https://journals.lww.com/bloodcoagulation/Abstract/2016/06000/Tissue_factor_dependent_pathway_in_severe.14.aspx