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Revista Brasileira de Ginecologia e Obstetrícia. 2019;41(10):621-627
Antiphospholipid antibody syndrome (APS) is a systemic, autoimmune, prothrombotic disease characterized by persistent antiphospholipid antibodies (aPLs), thrombosis, recurrent abortion, complications during pregnancy, and occasionally thrombocytopenia. The objective of the present study was to review the pathophysiology of APS and its association with female infertility. A bibliographic review of articles of the past 20 yearswas performed at the PubMed, Scielo, and Bireme databases. Antiphospholipid antibody syndrome may be associated with primary infertility, interfering with endometrial decidualization and with decreased ovarian reserve. Antiphospholipid antibodies also have direct negative effects on placentation, when they bind to the trophoblast, reducing their capacity for invasion, and proinflammatory effects, such as complement activation and neutrophil recruitment, contributing to placental insufficiency, restricted intrauterine growth, and fetal loss. In relation to thrombosis, APS results in a diffuse thrombotic diathesis, with global and diffuse dysregulation of the homeostatic balance. Knowing the pathophysiology of APS, which is closely linked to female infertility, is essential for new therapeutic approaches, specialized in immunomodulation andinflammatory signaling pathways, to provide important advances in its treatment.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2019;41(10):621-627
Antiphospholipid antibody syndrome (APS) is a systemic, autoimmune, prothrombotic disease characterized by persistent antiphospholipid antibodies (aPLs), thrombosis, recurrent abortion, complications during pregnancy, and occasionally thrombocytopenia. The objective of the present study was to review the pathophysiology of APS and its association with female infertility. A bibliographic review of articles of the past 20 yearswas performed at the PubMed, Scielo, and Bireme databases. Antiphospholipid antibody syndrome may be associated with primary infertility, interfering with endometrial decidualization and with decreased ovarian reserve. Antiphospholipid antibodies also have direct negative effects on placentation, when they bind to the trophoblast, reducing their capacity for invasion, and proinflammatory effects, such as complement activation and neutrophil recruitment, contributing to placental insufficiency, restricted intrauterine growth, and fetal loss. In relation to thrombosis, APS results in a diffuse thrombotic diathesis, with global and diffuse dysregulation of the homeostatic balance. Knowing the pathophysiology of APS, which is closely linked to female infertility, is essential for new therapeutic approaches, specialized in immunomodulation andinflammatory signaling pathways, to provide important advances in its treatment.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2007;29(5):235-240
DOI 10.1590/S0100-72032007000500003
PURPOSE: to establish the prevalence of thrombophilic factors in infertile women. METHODS: a cross-sectional study was performed, in which infertile women, seen in a private clinic with investigation for thrombophilia were included, according to the protocol of the clinic, between March 2003 and March 2005, after the approval of the Research Ethics Committee of the Universidade Estadual de Campinas (UNICAMP). One hundred and forty-four infertile women without any liver disease were evaluated. Infertility is defined as one year of unprotected sexual intercourse without conception. The acquired and/or inherited thrombophilic factors investigated were: anticardiolipin antibody (aCL), lupus anticoagulant (LA), protein C deficiency (PCD), protein S deficiency (PSD), antithrombin III deficiency (ATD), presence of the factor V Leiden, mutation G20 210A in the prothrombin gene, and C677T mutation of methylene tetrahydrofolate reductase (MTHFR). RESULTS: the prevalence values obtained for aCL and LA were 2%. The prevalence of the hereditary thrombophilic factors were: PCD=4%, PSD=6%, ATD=5%, factor V Leiden=3%, prothrombin mutation=3%, MTHFR mutation=57%. Conclusions: of the 144 patients selected, 105 women (72.9%) presented at least one thrombophilic factor. This reinforces the importance and justifies the need of investigation in this group.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2007;29(5):235-240
DOI 10.1590/S0100-72032007000500003
PURPOSE: to establish the prevalence of thrombophilic factors in infertile women. METHODS: a cross-sectional study was performed, in which infertile women, seen in a private clinic with investigation for thrombophilia were included, according to the protocol of the clinic, between March 2003 and March 2005, after the approval of the Research Ethics Committee of the Universidade Estadual de Campinas (UNICAMP). One hundred and forty-four infertile women without any liver disease were evaluated. Infertility is defined as one year of unprotected sexual intercourse without conception. The acquired and/or inherited thrombophilic factors investigated were: anticardiolipin antibody (aCL), lupus anticoagulant (LA), protein C deficiency (PCD), protein S deficiency (PSD), antithrombin III deficiency (ATD), presence of the factor V Leiden, mutation G20 210A in the prothrombin gene, and C677T mutation of methylene tetrahydrofolate reductase (MTHFR). RESULTS: the prevalence values obtained for aCL and LA were 2%. The prevalence of the hereditary thrombophilic factors were: PCD=4%, PSD=6%, ATD=5%, factor V Leiden=3%, prothrombin mutation=3%, MTHFR mutation=57%. Conclusions: of the 144 patients selected, 105 women (72.9%) presented at least one thrombophilic factor. This reinforces the importance and justifies the need of investigation in this group.
