Autoantibodies against phosphatidylserine, prothrombin and phosphatidylserine-prothrombin complex: Identical or distinct diagnostic tools for antiphospholipid syndrome?

被引:29
作者
Jaskowski, Troy D. [1 ]
Wilson, Andrew R. [1 ]
Hill, Harry R. [1 ,2 ,3 ,4 ]
Branch, Ware D. [5 ]
Tebo, Anne E. [1 ,2 ]
机构
[1] Univ Utah, Sch Med, Associated Reg & Univ Pathologists Inst Clin & Ex, Salt Lake City, UT USA
[2] Univ Utah, Sch Med, Dept Pathol, Salt Lake City, UT USA
[3] Univ Utah, Sch Med, Dept Pediat, Salt Lake City, UT USA
[4] Univ Utah, Sch Med, Dept Med, Salt Lake City, UT USA
[5] Univ Utah, Sch Med, Dept Obstet & Gynecol, Salt Lake City, UT 84132 USA
关键词
Antiphospholipid antibodies; Antiphospholipid syndrome; Diagnosis; INTERNATIONAL CONSENSUS STATEMENT; ANTIPROTHROMBIN ANTIBODIES; CLASSIFICATION CRITERIA; WET WORKSHOP; ANTICOAGULANT; PREVALENCE; WOMEN;
D O I
10.1016/j.cca.2009.09.006
中图分类号
R446 [实验室诊断]; R-33 [实验医学、医学实验];
学科分类号
1001 ;
摘要
Background: To clarify the association and diagnostic utility of measuring antiphosphatidyl serine (aPS), antiprothrombin (aPT) and the antiphosphatidyl serine/prothrombin complex (aPS/PT) anti bodies in patients with antiphospholipid syndrome (APS) and recurrent pregnancy loss (RPL). Method: We measured IgG and IgM anti-aPS/PT (2 different kits) as well as the aPS and aPT autoantibodies by ELISA. All subjects were also tested for the presence of Lupus anticoagulant (LA), IgG and IgM anticardiolipin (aCL) and anti-beta-2 glycoprotein 1 (a beta(2)GPI), and these served as the gold standard unless otherwise indicated. Two groups of patients were studied: (i) APS with RPL and/or thrombosis (n = 62): (ii) RPL only (n = 66) and a group of healthy women with successful pregnancies (WSP; n = 30). Results: The area under curve (AUC) analyses demonstrated significant differences between the aPS/PT (0.980) and aPT (0.850) assays (p = 0.002) with no significant differences between the 2 aPS/PT kits or the aPS/PT and aPS assays. The overall agreement between the tested aft antibodies and lupus anticoagulant (LA) for the APS cohort was very poor but associations between aPL assays were substantial (kappa>0.5) as determined by Cohen kappa analysis. Conclusions: Our data show a lack of association between aPS/PT antibodies and LA in APS patients with recurrent pregnancy loss. In the evaluation of these patients, there may be redundancy in testing all three markers as the aPT and aPS assays formed part of the aPS/PT antibody repertoire. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:19 / 24
页数:6
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