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Cederlöf ET, Lager S, Larsson A, Sundström Poromaa I, Lindahl B, Wikström A, Christersson C. Biomarkers associated with cardiovascular disease in women with spontaneous preterm birth: A case-control study. Acta Obstet Gynecol Scand 2024; 103:970-979. [PMID: 38379394 PMCID: PMC11019525 DOI: 10.1111/aogs.14813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 01/21/2024] [Accepted: 02/04/2024] [Indexed: 02/22/2024]
Abstract
INTRODUCTION Women with spontaneous preterm birth have an increased risk of cardiovascular disease later in life. Studies suggest potential pathophysiological mechanisms in common, but whether these could be identified by measurement of soluble circulating protein biomarkers in women with spontaneous preterm birth is unknown. The aim of this study was to determine if protein biomarkers associated with cardiovascular disease distinguish women with spontaneous preterm birth from healthy controls, both at pregnancy and at follow up. MATERIAL AND METHODS Study participants were identified in the population-based Uppsala biobank of pregnant women in Sweden, where plasma samples were collected in mid-pregnancy. In a first screening phase, we identified participants who subsequently experienced spontaneous preterm birth (<37 weeks) in the index pregnancy (N = 13) and controls (N = 6). In these samples, differences in protein expression were examined by comparative mass spectrometry. In a second validation phase, we invited 100 cases with previous spontaneous preterm birth in the index pregnancy and 100 controls (matched for age, body mass index, and year of delivery) from the same source population, to a follow-up visit 4-15 years after pregnancy. At follow up, we collected plasma samples and data on cardiovascular risk factors. We measured concentrations of selected biomarkers identified in the screening phase, as well as lipid profiles in samples both from pregnancy (biobank) and follow up. CLINICALTRIALS gov registration NCT05693285. RESULTS In the screening phase, fibrinogen, cadherin-5, complement C5, factor XII, plasma kallikrein, apolipoprotein M, and vitamin D-binding protein differed significantly at pregnancy. In the validation phase, 65 women agreed to participate (35 cases and 30 controls), with a median follow-up time of 11.8 years since pregnancy. The concentration of fibrinogen (p = 0.02) and triglycerides (p = 0.03) were slightly higher in cases compared with matched controls at follow up. CONCLUSIONS Compared with women without preterm birth, those with spontaneous preterm birth had slightly higher concentrations of fibrinogen, both at mid-pregnancy and a decade after pregnancy. Additionally, we found slightly higher concentration of triglycerides at follow up in women with previous spontaneous preterm birth. The relevance of this finding is uncertain but might indicate potential pathophysiological mechanisms in common between spontaneous preterm birth and cardiovascular disease.
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Affiliation(s)
| | - Susanne Lager
- Department of Women's and Children's HealthUppsala UniversityUppsalaSweden
| | - Anders Larsson
- Department of Medical Sciences, Clinical ChemistryUppsala UniversityUppsalaSweden
| | | | - Bertil Lindahl
- Department of Medical Sciences, CardiologyUppsala UniversityUppsalaSweden
- Uppsala Clinical Research CenterUppsala UniversityUppsalaSweden
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Godtfredsen AC, Gram JB, Pham STD, Dolleris BB, Jørgensen JS, Sidelmann JJ, Palarasah Y. Depressed Kallikrein Generation in Women With Preeclampsia: A Matched Cross-Sectional Study. Front Med (Lausanne) 2022; 9:896811. [PMID: 35733874 PMCID: PMC9207249 DOI: 10.3389/fmed.2022.896811] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 05/16/2022] [Indexed: 11/22/2022] Open
Abstract
Objective The pathophysiology of preeclampsia is not fully understood. Disturbances in the contact system are associated with preeclampsia. Few studies have investigated the association between preeclampsia and alterations in the contact system in plasma. This study aims to elucidate whether this basic biological system is affected in preeclampsia using new methods focusing on the dynamic interactions and total capacity of the contact system in blood. Design Cross-sectional study matching women with preeclampsia and controls without preeclampsia regarding age, pregestational body mass index, and gestational age at onset of the disease. Setting Two Danish University hospitals. Sample A cohort of 117 women with preeclampsia and 117 controls. Methods The turnover and capacity of the contact system were determined with new methods. Paired t-test, Wilcoxon signed-pairs signed rank test, Mann-Whitney or Chi2-test were applied, as appropriate. Main Outcome Measurements Kallikrein generation (peak kallikrein concentration and endogenous kallikrein potential), coagulation factor XII, prekallikrein, H-kininogen, cleaved H-kininogen, and complement C1 esterase inhibitor. Results The endogenous kallikrein potential, peak kallikrein concentration, prekallikrein and cleaved H-kininogen were significantly lower in women with preeclampsia compared to the controls, p ≤ 0.005, whereas the concentration of coagulation factor XII, H-kininogen and complement C1 esterase inhibitor was not significantly different, p > 0.05. Conclusion This study demonstrates significant reduction in kallikrein generating capacity, prekallikrein and cleaved H-kininogen indicating that the contact system is affected in preeclampsia suggesting a link to the pathophysiology of the disease.
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Affiliation(s)
- Anne Cathrine Godtfredsen
- Department of Gynecology and Obstetrics, University Hospital of Southern Denmark, Esbjerg, Denmark
- Unit for Thrombosis Research, Department of Regional Health Research, University of Southern Denmark, Esbjerg, Denmark
| | - Jørgen Brodersen Gram
- Unit for Thrombosis Research, Department of Regional Health Research, University of Southern Denmark, Esbjerg, Denmark
- Department of Clinical Biochemistry, University Hospital of Southern Denmark, Esbjerg, Denmark
| | | | - Britta Blume Dolleris
- Department of Gynecology and Obstetrics, University Hospital of Southern Denmark, Odense, Denmark
| | - Jan Stener Jørgensen
- Department of Gynecology and Obstetrics, University Hospital of Southern Denmark, Odense, Denmark
| | - Johannes Jakobsen Sidelmann
- Unit for Thrombosis Research, Department of Regional Health Research, University of Southern Denmark, Esbjerg, Denmark
- Department of Clinical Biochemistry, University Hospital of Southern Denmark, Esbjerg, Denmark
| | - Yaseelan Palarasah
- Unit for Thrombosis Research, Department of Regional Health Research, University of Southern Denmark, Esbjerg, Denmark
- Department of Cancer and Inflammation Research, University of Southern Denmark, Odense, Denmark
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3
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Reference intervals for coagulation parameters in non-pregnant and pregnant women. Sci Rep 2022; 12:1519. [PMID: 35087162 PMCID: PMC8795382 DOI: 10.1038/s41598-022-05429-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 01/11/2022] [Indexed: 12/19/2022] Open
Abstract
Established reference intervals (RIs) of coagulation parameters generally based on the general population are not applicable to specific women. In order to accurately evaluate the coagulation status of non-pregnant women and pregnant women, specific RIs should be established. Our study recruited 465 non-pregnant women and 1972 pregnant women aged 20–45 years. Eight tests including antithrombin (AT), protein C (PC), free protein S (fPS), lupus anticoagulant (LA), D-dimer, fibrin/fibrinogen degradation products (FDP), coagulation factor VII (FVII), and factor VIII (FVIII) were performed on ACL TOP automated coagulation instrument. The RIs for these tests were established in non-pregnant and pregnant women at different gestational weeks. Compared to the non-pregnant group, the medians of AT and fPS were lower, while the medians of PC, LA normalized ratio, D-dimer, FDP, FVII, and FVIII were higher. During pregnancy, AT and fPS activity showed a decreasing trend, with the increase of gestational age. PC activity, LA normalized ratio, D-dimer concentrations, FDP concentrations, FVII, and FVIII activity presented an increasing trend, with the increase of gestational age. The non-pregnant women-specific RIs and the gestational age-specific RIs of AT, PC, fPS, LA normalized ratio, D-dimer, FDP, FVII, and FVIII needed to be established for accurate clinical diagnoses.
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Sato Y, Sugi T, Sakai R, Kuma H. The role of epidermal growth factor-like domain-related abnormalities, protein S Tokushima, and anti-protein S autoantibodies in pregnancy loss. J Reprod Immunol 2022; 150:103476. [DOI: 10.1016/j.jri.2022.103476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 01/01/2022] [Accepted: 01/09/2022] [Indexed: 11/15/2022]
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Brekke TD, Moore EC, Campbell-Staton SC, Callahan CM, Cheviron ZA, Good JM. X chromosome-dependent disruption of placental regulatory networks in hybrid dwarf hamsters. Genetics 2021; 218:6168998. [PMID: 33710276 DOI: 10.1093/genetics/iyab043] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 02/16/2021] [Indexed: 11/14/2022] Open
Abstract
Embryonic development in mammals is highly sensitive to changes in gene expression within the placenta. The placenta is also highly enriched for genes showing parent-of-origin or imprinted expression, which is predicted to evolve rapidly in response to parental conflict. However, little is known about the evolution of placental gene expression, or if divergence of placental gene expression plays an important role in mammalian speciation. We used crosses between two species of dwarf hamsters (Phodopus sungorus and Phodopus campbelli) to examine the genetic and regulatory underpinnings of severe placental overgrowth in their hybrids. Using quantitative genetic mapping and mitochondrial substitution lines, we show that overgrowth of hybrid placentas was primarily caused by genetic differences on the maternally inherited P. sungorus X chromosome. Mitochondrial interactions did not contribute to abnormal hybrid placental development, and there was only weak correspondence between placental disruption and embryonic growth. Genome-wide analyses of placental transcriptomes from the parental species and first- and second-generation hybrids revealed a central group of co-expressed X-linked and autosomal genes that were highly enriched for maternally biased expression. Expression of this gene network was strongly correlated with placental size and showed widespread misexpression dependent on epistatic interactions with X-linked hybrid incompatibilities. Collectively, our results indicate that the X chromosome is likely to play a prominent role in the evolution of placental gene expression and the accumulation of hybrid developmental barriers between mammalian species.
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Affiliation(s)
- Thomas D Brekke
- Division of Biological Sciences, The University of Montana, Missoula, MT 59812, USA.,School of Natural Sciences, Bangor University, Bangor, LL57 2UW, UK
| | - Emily C Moore
- Division of Biological Sciences, The University of Montana, Missoula, MT 59812, USA
| | - Shane C Campbell-Staton
- Division of Biological Sciences, The University of Montana, Missoula, MT 59812, USA.,Department of Ecology and Evolutionary Biology; Institute for Society and Genetics, University of California, Los Angeles, Los Angeles, CA, USA
| | - Colin M Callahan
- Division of Biological Sciences, The University of Montana, Missoula, MT 59812, USA
| | - Zachary A Cheviron
- Division of Biological Sciences, The University of Montana, Missoula, MT 59812, USA
| | - Jeffrey M Good
- Division of Biological Sciences, The University of Montana, Missoula, MT 59812, USA
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Sun Y, Bao PJ, Zhang GB. Purification and characterization of Protein C activator from Agkistrodon acutus Venom. Prep Biochem Biotechnol 2020; 50:907-914. [DOI: 10.1080/10826068.2020.1768541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Yao Sun
- Department of Pathophysiology, Institute of Snake Venom, Wannan Medical College, Wuhu, China
| | - Peng-Ju Bao
- School of Anesthesiology, Wannan Medical College, Wuhu, China
| | - Gen-Bao Zhang
- Department of Pathophysiology, Institute of Snake Venom, Wannan Medical College, Wuhu, China
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7
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Kelliher S, Maguire PB, Szklanna PB, Weiss L, Ewins K, O'Doherty R, Angelov D, Ní Áinle F, Kevane B. Pathophysiology of the Venous Thromboembolism Risk in Preeclampsia. Hamostaseologie 2020; 40:594-604. [PMID: 32450576 DOI: 10.1055/a-1162-3905] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
Preeclampsia complicates up to 8% of pregnancies and is a leading cause of fetomaternal morbidity andmortality. Treatment options are limited, with supportive care and delivery of the placenta representing the cornerstone of current management strategies. Derangements in blood coagulation are wellrecognised in this disorder and appear to favour an increased risk of venous thromboembolism among affected women. This risk appears to be most significant in the postpartum period. The mechanisms underlying this increased thrombosis risk remain to be fully elucidated although increased expression of procoagulant factors, endothelial dysfunction, attenuation of endogenous anticoagulant activity and increased platelet activity have been implicated in the prothrombotic tendency. Preeclampsia is also occasionally complicated by life-threatening haemorrhagic events and current evidence suggests that in some severe manifestations of this disease a coagulopathy with a clinical bleeding tendency may be the predominant haemostatic abnormality. Identifying affected women at significant risk of thrombosis and managing the competing thrombotic and haemorrhagic risks continue to be a significant clinical challenge. Derangements in blood coagulation are also implicated in the pathogenesis of preeclampsia; however, the role of antiplatelet or anticoagulant drugs in the prevention and treatment of this disorder remains a source of considerable debate. In addition, the potential role of specific haemostatic markers as diagnostic or screening tools for preeclampsia has also yet to be determined. Further characterisation of the underlying molecular mechanisms would likely be of major translational relevance and could provide insights into the pathogenesis of this disease as well as the associated haemostatic dysfunction.
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Affiliation(s)
- Sarah Kelliher
- Department of Haematology, Mater Misericordiae University Hospital, Dublin, Ireland.,Irish Network for VTE Research (INViTE), Dublin, Ireland
| | - Patricia B Maguire
- Irish Network for VTE Research (INViTE), Dublin, Ireland.,UCD Conway SPHERE Research Group, Dublin, Ireland.,School of Biomolecular and Biomedical Science, University College Dublin, Dublin, Ireland
| | - Paulina B Szklanna
- UCD Conway SPHERE Research Group, Dublin, Ireland.,School of Biomolecular and Biomedical Science, University College Dublin, Dublin, Ireland
| | - Luisa Weiss
- UCD Conway SPHERE Research Group, Dublin, Ireland.,School of Biomolecular and Biomedical Science, University College Dublin, Dublin, Ireland
| | - Karl Ewins
- Department of Haematology, Mater Misericordiae University Hospital, Dublin, Ireland.,Irish Network for VTE Research (INViTE), Dublin, Ireland.,Department of Haematology, Rotunda Hospital, Dublin, Ireland
| | - Roseann O'Doherty
- Department of Haematology, Mater Misericordiae University Hospital, Dublin, Ireland
| | - Daniel Angelov
- Department of Haematology, Mater Misericordiae University Hospital, Dublin, Ireland
| | - Fionnuala Ní Áinle
- Department of Haematology, Mater Misericordiae University Hospital, Dublin, Ireland.,Irish Network for VTE Research (INViTE), Dublin, Ireland.,UCD Conway SPHERE Research Group, Dublin, Ireland.,Department of Haematology, Rotunda Hospital, Dublin, Ireland.,School of Medicine, University College Dublin (UCD), Dublin, Ireland
| | - Barry Kevane
- Department of Haematology, Mater Misericordiae University Hospital, Dublin, Ireland.,Irish Network for VTE Research (INViTE), Dublin, Ireland.,UCD Conway SPHERE Research Group, Dublin, Ireland.,School of Medicine, University College Dublin (UCD), Dublin, Ireland
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8
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Gris JC, Bouvier S, Cochery-Nouvellon É, Mercier É, Mousty È, Pérez-Martin A. The role of haemostasis in placenta-mediated complications. Thromb Res 2020; 181 Suppl 1:S10-S14. [PMID: 31477220 DOI: 10.1016/s0049-3848(19)30359-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 03/06/2019] [Accepted: 03/14/2019] [Indexed: 12/20/2022]
Abstract
Normal pregnancy is associated with an increasing state of activation of the haemostatic system. This activation state is excessive in women with placenta-mediated pregnancy complications (PMPCs), including preeclampsia (PE). Platelet activation plays a crucial pathophysiological role in PE. The very early activation of coagulation in the intervillous space is mandatory for placental growth and morphogenesis but its excesses and/or inadequate control may participate to the emergence of the trophoblastic phenotype of PE. Extracellular vesicles, of endothelial but also of trophoblastic origin, can favour key cellular reactions of preeclampsia, acting as proactive cofactors. The understanding of this intricate relationship between haemostasis activation and PMPCs may provide interesting keys for new pathophysiological therapeutic developments.
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Affiliation(s)
- Jean-Christophe Gris
- Department of Haematology, Nîmes University Hospital, France; University of Montpellier, France; The First I.M. Sechenov Moscow State Medical University, Russian Federation.
| | - Sylvie Bouvier
- Department of Haematology, Nîmes University Hospital, France; University of Montpellier, France
| | | | - Éric Mercier
- Department of Haematology, Nîmes University Hospital, France; University of Montpellier, France
| | - Ève Mousty
- Department of Gynaecology and Obstetrics, Nîmes University Hospital, France
| | - Antonia Pérez-Martin
- University of Montpellier, France; Department of Vascular Imaging and Vascular Medicine, Nîmes University Hospital, France
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9
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Morita K, Ono Y, Takeshita T, Sugi T, Fujii T, Yamada H, Nakatsuka M, Fukui A, Saito S. Risk Factors and Outcomes of Recurrent Pregnancy Loss in Japan. J Obstet Gynaecol Res 2019; 45:1997-2006. [PMID: 31397532 DOI: 10.1111/jog.14083] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Accepted: 07/13/2019] [Indexed: 12/13/2022]
Abstract
AIM To clarify the risk factors and pregnancy outcomes for each risk factor of recurrent pregnancy loss (RPL) in Japan. METHODS Using a prospective RPL database collected from 16 facilities in Japan, the prevalence of risk factors for RPL, their treatments and pregnancy outcomes were examined. RESULTS Of 6663 patients registered in our database, 5708 patients had RPL. All examinations for risk factors were performed for 1340 patients (23.5%). The prevalences of positive antiphospholipid antibodies (aPL), malformation of the uterus, thyroid dysfunction, parental karyotype abnormality, factor XII deficiency, protein S deficiency and unknown risk factors were 8.7%, 7.9%, 9.5%, 3.7%, 7.6%, 4.3% and 65.1%, respectively. Although factor XII deficiency and protein S deficiency are not recognized as risk factors for RPL in general, low-dose aspirin (LDA) or unfractionated heparin + LDA therapy improved live birth rates. In transiently aPL-positive patients, the live birth rate with LDA therapy was similar to that with heparin + LDA. For unknown risk factors of RPL, the live birth rate in normal fetal karyotype in the none treatment group was similar to that in all other treatments group (81.3% vs 86.0%). Of 5708 RPL patients, pregnancy outcomes were known for 2261 patients and 1697 patients (75.1%) had at least one live birth. CONCLUSION The risk factors and pregnancy outcomes for each risk factor of RPL are useful for clinicians and patients. Factor XII deficiency and protein S deficiency may be risk factors of RPL.
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Affiliation(s)
- Keiko Morita
- Department of Obstetrics and Gynecology, University of Toyama, Toyama, Japan
| | - Yosuke Ono
- Department of Obstetrics and Gynecology, Tonami General Hospital, Tonami, Toyama, Japan
| | - Toshiyuki Takeshita
- Department of Obstetrics and Gynecology, Nippon Medical School, Bunkyo City, Tokyo, Japan
| | - Toshitaka Sugi
- Laboratory for Recurrent Pregnancy Loss, Sugi Women's Clinic, Yokohama, Kanagawa, Japan
| | - Tomoyuki Fujii
- Department of Obstetrics and Gynecology, University of Tokyo, Bunkyo City, Tokyo, Japan
| | - Hideto Yamada
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Mikiya Nakatsuka
- Graduate School of Health Sciences, Okayama University, Okayama, Japan
| | - Atsushi Fukui
- Department of Obstetrics and Gynecology, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan
| | - Shigeru Saito
- Department of Obstetrics and Gynecology, University of Toyama, Toyama, Japan
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Albert V, Arulselvi S, Agrawal D, Pati HP, Pandey RM. Early posttraumatic changes in coagulation and fibrinolysis systems in isolated severe traumatic brain injury patients and its influence on immediate outcome. Hematol Oncol Stem Cell Ther 2019; 12:32-43. [DOI: 10.1016/j.hemonc.2018.09.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 08/23/2018] [Accepted: 09/06/2018] [Indexed: 12/27/2022] Open
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Riang'a RM, Nangulu AK, Broerse JEW. Perceived causes of adverse pregnancy outcomes and remedies adopted by Kalenjin women in rural Kenya. BMC Pregnancy Childbirth 2018; 18:408. [PMID: 30340547 PMCID: PMC6194609 DOI: 10.1186/s12884-018-2041-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 10/04/2018] [Indexed: 11/15/2022] Open
Abstract
Background There have been few studies about the basis on which women in developing regions evaluate and choose traditional rather than western maternal care. This qualitative study explores the socio-cultural perceptions of complications associated with pregnancy and childbirth and how these perceptions influence maternal health and care-seeking behaviours in Kenya. Methods Kalenjin women (n = 42) aged 18–45 years, who were pregnant or had given birth within the last 12 months, were interviewed. A semi-structured interview guide was used for data collection. A further nine key informant interviews with Traditional Birth Attendants (TBAs) who were also herbalists (n = 6), community health workers (CHWs) (n = 3) and a Maternal and Child Health (MCH) nursing officer (n = 1) were conducted. The data were analysed using MAXQDA12 software and categorised, thematised and analysed based on the symbolic dimensions of Helman’s (2000) ill-health causation aetiologies model. Results Pregnancy complications are perceived as the consequence of pregnant women not observing culturally restricted and recommended behaviour during pregnancy, including diet; physical activities; evil social relations and spirits of the dead. These complications are considered to be preventable by following a restricted and recommended diet, and avoiding heavy duties, funerals, killing of animals and eating meat of animal carcasses, as well as restricting geographical mobility, and use of herbal remedies to counter evil and prevent complications. Conclusion Delay in deciding to seek maternal care is a result of women’s failure to recognise symptoms and maternal health problems as potential hospital cases, and this failure stems from culturally informed perceptions of symptoms of maternal morbidity and pregnancy complications that differ significantly from biomedical interpretations. Some of the cultural maternal care and remedies adopted to prevent pregnancy complications, such as restriction of diet and social mobility, may pose risks to the pregnant woman’s health and access to health facilities whereas other remedies such as restricting consumption of meat from animal carcasses and heavy duties, as well as maintaining good social relations, are cultural adaptive mechanisms that indirectly control the transmission of disease and improve maternal health, and thus should not be considered to be exclusively folk or primitive. Electronic supplementary material The online version of this article (10.1186/s12884-018-2041-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Roselyter Monchari Riang'a
- School of Arts and Social Sciences, Moi University, P.O. Box 3900-30100, Eldoret, Kenya. .,Athena Institute, Faculty of Science, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081 HV, Amsterdam, The Netherlands.
| | - Anne Kisaka Nangulu
- School of Arts and Social Sciences, Moi University, P.O. Box 3900-30100, Eldoret, Kenya.,Commission for University Education, Red Hill Road, off Limuru Road, Gigiri, PO Box 54999 - 00200, Nairobi, Kenya
| | - Jacqueline E W Broerse
- Athena Institute, Faculty of Science, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081 HV, Amsterdam, The Netherlands
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Sato Y, Sugi T, Sakai R. Antigenic binding sites of anti-protein S autoantibodies in patients with recurrent pregnancy loss. Res Pract Thromb Haemost 2018; 2:357-365. [PMID: 30046739 PMCID: PMC6055483 DOI: 10.1002/rth2.12081] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Accepted: 01/02/2018] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND Protein S (PS) deficiency is a risk factor for adverse pregnancy outcomes including recurrent pregnancy loss. Several studies have shown that the presence of anti-PS autoantibodies (anti-PS) leads to an acquired PS deficiency. Hence, an epitope mapping study was conducted to know the pathogenesis of anti-PS in patients with recurrent pregnancy loss. METHODS PS was treated with thrombin to divide the protein into γ-carboxyglutamic acid (Gla) domain and Gla-domain free PS. For the preparation of fragments of epidermal growth factor (EGF)-like domains (EGF1-4), PS was subjected to proteolysis using lysyl endopeptidase. The epitopes were identified in immunoblot. Whether anti-PS recognized EGF family proteins in anti-PS-positive patients was also examined. RESULTS Anti-PS recognized Gla-domain free PS, especially the three fragments of EGF-like domains, EGF1-2, EGF3-4, and EGF1-4. Anti-PS recognized recombinant human EGF. Anti-PS and polyclonal antibodies to recombinant human EGF recognized PS in the absence of Ca2+ but not in the presence of Ca2+. In competitive inhibition studies, polyclonal antibodies to recombinant mouse EGF blocked anti-PS binding to PS in a concentration-dependent manner. CONCLUSIONS These results suggest that anti-PS in patients with recurrent pregnancy loss recognize EGF-like domains in PS. Interestingly, anti-PS also recognized EGF family proteins. Anti-PS in patients with recurrent pregnancy loss may be associated with not only thrombophilia but also the disruption of the EGF system.
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Affiliation(s)
- Yoshihiro Sato
- Laboratory for Recurrent Pregnancy LossSugi Women's ClinicYokohamaJapan
| | - Toshitaka Sugi
- Laboratory for Recurrent Pregnancy LossSugi Women's ClinicYokohamaJapan
| | - Rie Sakai
- Laboratory for Recurrent Pregnancy LossSugi Women's ClinicYokohamaJapan
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Imai K, Kotani T, Nakano T, Ushida T, Hirakawa A, Kikkawa F. Maternal protein S activity is associated with massive hemorrhage during caesarean section: retrospective case-control study. J Matern Fetal Neonatal Med 2018; 32:2633-2637. [PMID: 29455618 DOI: 10.1080/14767058.2018.1443067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
OBJECTIVE The objective of this study is to identify any correlation between the maternal protein S (PS) activity, which decreases spontaneously during normal pregnancy, and the pregnancy outcome, especially the amount of bleeding during caesarean section (CS). MATERIALS AND METHODS We analyzed 129 pregnant women who received elective CS at our hospital which is a tertiary perinatal center. The relationship between the amount of intraoperative hemorrhage and PS activity was estimated by simple linear regression. Univariate and multivariate analyses were also performed to determine whether or not the maternal PS activity was associated with massive hemorrhage (>1000 g). RESULTS The maternal PS activity correlated with the amount of intraoperative hemorrhage (p = .048, r = 0.175) and could be an independent predictor of massive hemorrhage (odds ratio 1.06; 95% confidence interval 1.01-1.12; p = .013). CONCLUSIONS Maternal PS activity was associated with the amount of hemorrhage during CS and the occurrence of massive hemorrhage. PS activity reduction naturally occurring during pregnancy could contribute to alleviation of massive hemorrhage.
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Affiliation(s)
- Kenji Imai
- a Department of Obstetrics and Gynecology , Nagoya University Graduate School of Medicine , Nagoya , Japan
| | - Tomomi Kotani
- a Department of Obstetrics and Gynecology , Nagoya University Graduate School of Medicine , Nagoya , Japan
| | - Tomoko Nakano
- a Department of Obstetrics and Gynecology , Nagoya University Graduate School of Medicine , Nagoya , Japan
| | - Takafumi Ushida
- a Department of Obstetrics and Gynecology , Nagoya University Graduate School of Medicine , Nagoya , Japan
| | - Akihiro Hirakawa
- b Department of Biostatistics and Bioinformatics , Graduate School of Medicine, The University of Tokyo , Hongo , Japan
| | - Fumitaka Kikkawa
- a Department of Obstetrics and Gynecology , Nagoya University Graduate School of Medicine , Nagoya , Japan
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Bagot C, Leishman E, Onyiaodike C, Jordan F, Freeman D. Normal pregnancy is associated with an increase in thrombin generation from the very early stages of the first trimester. Thromb Res 2017; 157:49-54. [DOI: 10.1016/j.thromres.2017.06.027] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 05/23/2017] [Accepted: 06/22/2017] [Indexed: 11/27/2022]
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15
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Trimester-specific coagulation and anticoagulation reference intervals for healthy pregnancy. Thromb Res 2017; 156:82-86. [DOI: 10.1016/j.thromres.2017.05.021] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Revised: 04/21/2017] [Accepted: 05/23/2017] [Indexed: 11/22/2022]
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16
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Multiple thrombophile Risikomarker bei Patienten ≺65 Jahre mit venösen retinalen Gefäßverschlüssen. Ophthalmologe 2017; 114:1149-1154. [DOI: 10.1007/s00347-017-0456-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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17
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Shinozaki N, Ebina Y, Deguchi M, Tanimura K, Morizane M, Yamada H. Protein S deficiency complicated pregnancy in women with recurrent pregnancy loss. Gynecol Endocrinol 2016; 32:672-674. [PMID: 26941215 DOI: 10.3109/09513590.2016.1152239] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
This prospective study aimed to evaluate pregnancy outcome and complications in women with recurrent pregnancy loss (RPL) and protein S (PS) deficiency, who received low dose aspirin (LDA) or LDA plus heparin (LDA/H) therapies. Clinical characteristics, pregnancy outcome and complications of 38 women with two or more RPL and <60% of plasma free PS antigen were compared among three groups: antiphospholipid antibody (aPL)-negative women who received LDA (group A), aPL-negative women who received LDA/H (group B) and aPL-positive women who received LDA/H (group C). Gestational weeks (GW) at delivery in group C (median 32 GW) were earlier than 40 GW in group A and 38.5 GW in group B (p < 0.05). The birth weight in group C (median 1794 g) was less than 2855 g in group B (p < 0.05). The incidences of fetal growth restriction (37.5%), pregnancy-induced hypertension (37.5%), and preterm delivery (62.5%) in group C were higher than those (4.5%, 0%, and 4.5%, respectively) in group B (p<0.05). Women with RPL, PS deficiency, and positive aPL had high risks for adverse pregnancy outcome and complications, even when they received LDA/H therapy. Among women with RPL, PS, and negative aPL, there was no difference in these risks between LDA alone and LDA/H therapies.
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Affiliation(s)
- Nanae Shinozaki
- a Department of Obstetrics and Gynecology , Kobe University Graduate School of Medicine , Kobe , Japan
| | - Yasuhiko Ebina
- a Department of Obstetrics and Gynecology , Kobe University Graduate School of Medicine , Kobe , Japan
| | - Masashi Deguchi
- a Department of Obstetrics and Gynecology , Kobe University Graduate School of Medicine , Kobe , Japan
| | - Kenji Tanimura
- a Department of Obstetrics and Gynecology , Kobe University Graduate School of Medicine , Kobe , Japan
| | - Mayumi Morizane
- a Department of Obstetrics and Gynecology , Kobe University Graduate School of Medicine , Kobe , Japan
| | - Hideto Yamada
- a Department of Obstetrics and Gynecology , Kobe University Graduate School of Medicine , Kobe , Japan
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Struble E, Harrouk W, DeFelice A, Tesfamariam B. Nonclinical aspects of venous thrombosis in pregnancy. ACTA ACUST UNITED AC 2015; 105:190-200. [PMID: 26404176 DOI: 10.1002/bdrc.21111] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Pregnancy is a hypercoagulable state which carries an excess risk of maternal venous thrombosis. Endothelial injury, alterations in blood flow and activation of the coagulation pathway are proposed to contribute to the hypercoagulability. The risk for thrombosis may be accentuated by certain drugs and device implants that directly or indirectly affect the coagulation pathway. To help ensure that these interventions do not result in adverse maternal or fetal outcomes during pregnancy, gravid experimental animals can be exposed to such treatments at various stages of gestation and over a dosage range that would identify hazards and inform risk assessment. Circulating soluble biomarkers can also be evaluated for enhancing the assessment of any increased risk of venous thrombosis during pregnancy. In addition to traditional in vivo animal testing, efforts are under way to incorporate reliable non-animal methods in the assessment of embryofetal toxicity and thrombogenic effects. This review summarizes hemostatic balance during pregnancy in animal species, embryofetal development, biomarkers of venous thrombosis, and alterations caused by drug-induced venous thrombosis.
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Affiliation(s)
- Evi Struble
- Division of Hematology Research and Review, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, Maryland
| | - Wafa Harrouk
- Division of Nonprescription Drug Products, Center for Drug Evaluation and Research, Food and Drug Administration, Silver Spring, Maryland
| | - Albert DeFelice
- Division of Cardiovascular and Renal Products, Center for Drug Evaluation and Research, Food and Drug Administration, Silver Spring, Maryland
| | - Belay Tesfamariam
- Division of Cardiovascular and Renal Products, Center for Drug Evaluation and Research, Food and Drug Administration, Silver Spring, Maryland
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