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Erez O, Espinoza J, Chaiworapongsa T, Gotsch F, Kusanovic JP, Than NG, Mazaki-Tovi S, Vaisbuch E, Papp Z, Yoon BH, Han YM, Hoppensteadt D, Fareed J, Hassan SS, Romero R. A link between a hemostatic disorder and preterm PROM: a role for tissue factor and tissue factor pathway inhibitor. J Matern Fetal Neonatal Med 2009; 21:732-44. [PMID: 19012190 DOI: 10.1080/14767050802361807] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
OBJECTIVE Vaginal bleeding is a risk factor for preterm PROM (PPROM). A disorder of decidual hemostasis has been implicated in the genesis of PROM. Indeed, excessive thrombin generation has been demonstrated in PPROM both before and at the time of diagnosis. Decidua is a potent source of tissue factor (TF), the most powerful natural pro-coagulant. A decidual hemostatic disorder may link vaginal bleeding, PPROM and placental abruption. This study was conducted to determine the behaviour of maternal TF and its natural inhibitor, the tissue factor pathway inhibitor (TFPI) in PPROM. METHODS This cross-sectional study included women with PPROM (n = 123) and women with normal pregnancies (n = 86). Plasma concentrations of TF and TFPI were measured by a sensitive immunoassay. Non-parametric statistics were used for analysis. RESULTS (1) The median maternal plasma TF concentration was significantly higher in patients with PPROM than in women with normal pregnancies (median: 369.5 pg/mL; range: 3.27-2551 pg/mL vs. median: 291.5 pg/mL; range: 6.3-2662.2 pg/mL respectively, p = 0.001); (2) the median maternal TFPI plasma concentration was significantly lower in patients with PPROM than in women with normal pregnancies (median: 58.7 ng/mL; range: 26.3-116 ng/mL vs. median: 66.1 ng/mL; range: 14.3-86.5 ng/mL respectively, p = 0.019); (3) there was no correlation between the plasma concentration of TF and TFPI and the gestational age at sample collection; and (4) among patients with PPROM there was no association between the presence of intra-amniotic infection or inflammation and median plasma concentrations of TF and TFPI. CONCLUSIONS (1) Patients with PPROM have a higher median plasma concentration of TF and a lower median plasma concentration of TFPI than women with normal pregnancies. (2) These findings suggest that PPROM is associated with specific changes in the hemostatic/coagulation system.
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Affiliation(s)
- Offer Erez
- Perinatology Research Branch, NICHD, NIH, DHHS, Detroit, Michigan, USA.
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Erez O, Romero R, Hoppensteadt D, Than NG, Fareed J, Mazaki-Tovi S, Espinoza J, Chaiworapongsa T, Kim SS, Yoon BH, Hassan SS, Gotsch F, Friel L, Vaisbuch E, Kusanovic JP. Tissue factor and its natural inhibitor in pre-eclampsia and SGA. J Matern Fetal Neonatal Med 2008; 21:855-69. [PMID: 19065458 PMCID: PMC3171292 DOI: 10.1080/14767050802361872] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
OBJECTIVE Tissue factor (TF), the major activator of the extrinsic pathway of coagulation, is abundant in the placenta and decidua. The aim of this study was to determine the maternal plasma concentrations of TF and its primary inhibitor, tissue factor pathway inhibitor (TFPI), in women who delivered small for gestational age (SGA) neonates, and in pre-eclampsia. STUDY DESIGN A cross-sectional study included the following groups: 1) women with normal pregnancies (n = 86); 2) patients who delivered SGA neonates (n = 61) and 3) women with pre-eclampsia (n = 133). Maternal plasma concentrations of TF and TFPI were measured by a sensitive immunoassay. Non-parametric statistics were used for analysis. RESULTS 1) Women with pre-eclampsia had a significantly higher median plasma concentration of TF than patients with a normal pregnancy (median: 1187 pg/mL; range: 69-11675 vs. median: 291.5 pg/mL; range: 6.3-2662.2; p < 0.0001, respectively); 2) Similarly, TFPI concentrations were higher in pre-eclampsia than in normal pregnancy (median: 87.5 ng/mL; range 25.4-165.1 vs. median: 66.1 ng/mL; range: 14.3-86.5; p < 0.0001, respectively); 3) Surprisingly, mothers with SGA neonates had a lower median maternal plasma concentration of TF (median: 112.2 pg/mL; range: 25.6-1225.3) than women with a normal pregnancy (p < 0.0001). CONCLUSION 1) Maternal plasma concentrations of TF in patients with pre-eclampsia, but not in those who delivered an SGA neonate, were higher than in women with normal pregnancies; 2) Although the role of immunoreactive plasma TF in coagulation remains controversial, our observations suggest that changes are present in the context of complications of pregnancy.
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Affiliation(s)
- Offer Erez
- Perinatology Research Branch, NICHD, NIH, DHHS, Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, Wayne State University, Detroit, Michigan, USA
| | - Roberto Romero
- Perinatology Research Branch, NICHD, NIH, DHHS, Detroit, Michigan, USA
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, Michigan, USA
| | - Debra Hoppensteadt
- Loyola University Medical Center, Department of Pathology, Maywood, Illinois, USA
| | - Nandor Gabor Than
- Perinatology Research Branch, NICHD, NIH, DHHS, Detroit, Michigan, USA
| | - Jawed Fareed
- Loyola University Medical Center, Department of Pathology, Maywood, Illinois, USA
| | - Shali Mazaki-Tovi
- Perinatology Research Branch, NICHD, NIH, DHHS, Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, Wayne State University, Detroit, Michigan, USA
| | - Jimmy Espinoza
- Perinatology Research Branch, NICHD, NIH, DHHS, Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, Wayne State University, Detroit, Michigan, USA
| | - Tinnakorn Chaiworapongsa
- Perinatology Research Branch, NICHD, NIH, DHHS, Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, Wayne State University, Detroit, Michigan, USA
| | - Sung-Su Kim
- Perinatology Research Branch, NICHD, NIH, DHHS, Detroit, Michigan, USA
| | - Bo Hyun Yoon
- Seoul National University College of Medicine, Department of Obstetrics and Gynecology, Seoul, South Korea
| | - Sonia S. Hassan
- Perinatology Research Branch, NICHD, NIH, DHHS, Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, Wayne State University, Detroit, Michigan, USA
| | - Francesca Gotsch
- Perinatology Research Branch, NICHD, NIH, DHHS, Detroit, Michigan, USA
| | - Lara Friel
- Perinatology Research Branch, NICHD, NIH, DHHS, Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, Wayne State University, Detroit, Michigan, USA
| | - Edi Vaisbuch
- Perinatology Research Branch, NICHD, NIH, DHHS, Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, Wayne State University, Detroit, Michigan, USA
| | - Juan Pedro Kusanovic
- Perinatology Research Branch, NICHD, NIH, DHHS, Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, Wayne State University, Detroit, Michigan, USA
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