Acquired Activated Protein C Resistance, Thrombophilia and Adverse Pregnancy Outcomes: A Study Performed in an Irish Cohort of Pregnant Women

The combination of thrombophilia and pregnancy increases the risk of thrombosis and the potential for adverse outcomes during pregnancy. The most significant common inherited risk factor for thrombophilia is activated protein C resistance (APCR), a poor anticoagulant response of APC in haemostasis,...

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Main Authors: Sara Sedano-Balbás, Mark Lyons, Brendan Cleary, Margaret Murray, Geraldine Gaffney, Majella Maher
Format: Article
Language:English
Published: Wiley 2011-01-01
Series:Journal of Pregnancy
Online Access:http://dx.doi.org/10.1155/2011/232840
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author Sara Sedano-Balbás
Mark Lyons
Brendan Cleary
Margaret Murray
Geraldine Gaffney
Majella Maher
author_facet Sara Sedano-Balbás
Mark Lyons
Brendan Cleary
Margaret Murray
Geraldine Gaffney
Majella Maher
author_sort Sara Sedano-Balbás
collection DOAJ
description The combination of thrombophilia and pregnancy increases the risk of thrombosis and the potential for adverse outcomes during pregnancy. The most significant common inherited risk factor for thrombophilia is activated protein C resistance (APCR), a poor anticoagulant response of APC in haemostasis, which is mainly caused by an inherited single-nucleotide polymorphism (SNP), factor V G1691A (FV Leiden) (FVL), referred as inherited APCR. Changes in the levels of coagulation factors: FV, FVIII, and FIX, and anticoagulant factors: protein S (PS) and protein C (PC) can alter APC function causing acquired APCR. Prothrombin G20210A and methylenetetrahydrofolate reductase (MTHFR) C677T are prothrombotic SNPs which in association with APCR can also increase the risk of thrombosis amongst Caucasians. In this study, a correlation between an acquired APCR phenotype and increased levels of factors V, VIII, and IX was demonstrated. Thrombophilic mutations amongst our acquired APCR pregnant women cohort are relatively common but do not appear to exert a severe undue adverse effect on pregnancy.
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spelling doaj-art-50112fe2f04942eebde5b0d3083bf65e2025-08-20T02:05:17ZengWileyJournal of Pregnancy2090-27272090-27352011-01-01201110.1155/2011/232840232840Acquired Activated Protein C Resistance, Thrombophilia and Adverse Pregnancy Outcomes: A Study Performed in an Irish Cohort of Pregnant WomenSara Sedano-Balbás0Mark Lyons1Brendan Cleary2Margaret Murray3Geraldine Gaffney4Majella Maher5Molecular Diagnostics Research Group, National Centre for Biomedical Engineering Science, National University of Ireland, Galway, IrelandDepartment of Haematology, University College Hospital, Galway, IrelandDepartment of Haematology, University College Hospital, Galway, IrelandDepartment of Haematology, University College Hospital, Galway, IrelandDepartment of Obstetrics & Gynaecology, University College Hospital, Galway, IrelandMolecular Diagnostics Research Group, National Centre for Biomedical Engineering Science, National University of Ireland, Galway, IrelandThe combination of thrombophilia and pregnancy increases the risk of thrombosis and the potential for adverse outcomes during pregnancy. The most significant common inherited risk factor for thrombophilia is activated protein C resistance (APCR), a poor anticoagulant response of APC in haemostasis, which is mainly caused by an inherited single-nucleotide polymorphism (SNP), factor V G1691A (FV Leiden) (FVL), referred as inherited APCR. Changes in the levels of coagulation factors: FV, FVIII, and FIX, and anticoagulant factors: protein S (PS) and protein C (PC) can alter APC function causing acquired APCR. Prothrombin G20210A and methylenetetrahydrofolate reductase (MTHFR) C677T are prothrombotic SNPs which in association with APCR can also increase the risk of thrombosis amongst Caucasians. In this study, a correlation between an acquired APCR phenotype and increased levels of factors V, VIII, and IX was demonstrated. Thrombophilic mutations amongst our acquired APCR pregnant women cohort are relatively common but do not appear to exert a severe undue adverse effect on pregnancy.http://dx.doi.org/10.1155/2011/232840
spellingShingle Sara Sedano-Balbás
Mark Lyons
Brendan Cleary
Margaret Murray
Geraldine Gaffney
Majella Maher
Acquired Activated Protein C Resistance, Thrombophilia and Adverse Pregnancy Outcomes: A Study Performed in an Irish Cohort of Pregnant Women
Journal of Pregnancy
title Acquired Activated Protein C Resistance, Thrombophilia and Adverse Pregnancy Outcomes: A Study Performed in an Irish Cohort of Pregnant Women
title_full Acquired Activated Protein C Resistance, Thrombophilia and Adverse Pregnancy Outcomes: A Study Performed in an Irish Cohort of Pregnant Women
title_fullStr Acquired Activated Protein C Resistance, Thrombophilia and Adverse Pregnancy Outcomes: A Study Performed in an Irish Cohort of Pregnant Women
title_full_unstemmed Acquired Activated Protein C Resistance, Thrombophilia and Adverse Pregnancy Outcomes: A Study Performed in an Irish Cohort of Pregnant Women
title_short Acquired Activated Protein C Resistance, Thrombophilia and Adverse Pregnancy Outcomes: A Study Performed in an Irish Cohort of Pregnant Women
title_sort acquired activated protein c resistance thrombophilia and adverse pregnancy outcomes a study performed in an irish cohort of pregnant women
url http://dx.doi.org/10.1155/2011/232840
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