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Guo J, Zheng X, Du X, Li W, Lu L. BMA-based Mendelian randomization identifies blood metabolites as causal candidates in pregnancy-induced hypertension. Hypertens Res 2024:10.1038/s41440-024-01787-4. [PMID: 38951678 DOI: 10.1038/s41440-024-01787-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 05/25/2024] [Accepted: 06/15/2024] [Indexed: 07/03/2024]
Abstract
Pregnancy-induced hypertension (PIH), a prominent determinant of maternal mortality and morbidity worldwide, is hindered by the absence of efficacious biomarkers for early diagnosis, contributing to suboptimal outcomes. Here, we explored potential causal relationships between blood metabolites and the risk of PIH using Mendelian randomization (MR). We employed a two-sample univariable MR approach to empirically estimate the causal relationships between 249 circulating metabolites and PIH. Inverse variance weighted, MR-egger, weight median, simple mode, and weighted mode methods were used for causal estimates. The exposure-to-outcome directionality was confirmed with the MR Steiger test. The Bayesian model averaging MR (MR-BMA) method was applied to detect the predominant causal metabolic traits with alignment for pleiotropy effects. In the primary analysis, analyzing 249 metabolites, we identified 25 causally linked to PIH, including 11 lipid-related traits and 6 associated with fatty acid (un)saturation. Importantly, MR-BMA analyses corroborated the total concentration of branched-chain amino acids(total-BCAA) to be the highest rank causal metabolite, followed by leucine (Leu), phospholipids to total lipids ratio in medium LDL (M-LDL-PL-pct), and Val (all P < 0.05). The directionality of causality predicted by univariable MR and MR-BMA for these metabolites remained consistent. This study highlights the causal connection between metabolites and PIH risk. It highlighted BCAAs as the strongest causal candidates warranting further investigation. Since PIH typically occurs in the second and third trimesters, extending these findings could inform earlier strategies to reduce its risk. Directed acyclic graph of the MR framework investigating the causal relationship between metabolites and PIH. MR: Mendelian randomization; GIVs: genetic instrument variables; SNPs: single-nucleotide polymorphism; IVW: inverse variance weighted; WM: weighted median; PIH: pregnancy-induced hypertension; SM: significant metabolite; MR-BMA: Bayesian model averaging MR.
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Affiliation(s)
- Jun Guo
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230001, Anhui, China
- Department of Radiology, The First Affiliate Hospital of Hunan Normal University (Hunan Provincial People's Hospital), Changsha, China
| | - Xiaofei Zheng
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Xue Du
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230001, Anhui, China
| | - Weisheng Li
- Department of gynaecology, Qingdao Hospital, University of Health and Rehabilitation Sciences (Qingdao Municipal Hospital), Qingdao, China.
| | - Likui Lu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230001, Anhui, China.
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Cao J, Jiang W, Yin Z, Li N, Tong C, Qi H. Mechanistic study of pre-eclampsia and macrophage-associated molecular networks: bioinformatics insights from multiple datasets. Front Genet 2024; 15:1376971. [PMID: 38846957 PMCID: PMC11153808 DOI: 10.3389/fgene.2024.1376971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 04/26/2024] [Indexed: 06/09/2024] Open
Abstract
Background Pre-eclampsia is a pregnancy-related disorder characterized by hypertension and proteinuria, severely affecting the health and quality of life of patients. However, the molecular mechanism of macrophages in pre-eclampsia is not well understood. Methods In this study, the key biomarkers during the development of pre-eclampsia were identified using bioinformatics analysis. The GSE75010 and GSE74341 datasets from the GEO database were obtained and merged for differential analysis. A weighted gene co-expression network analysis (WGCNA) was constructed based on macrophage content, and machine learning methods were employed to identify key genes. Immunoinfiltration analysis completed by the CIBERSORT method, R package "ClusterProfiler" to explore functional enrichment of these intersection genes, and potential drug predictions were conducted using the CMap database. Lastly, independent analysis of protein levels, localization, and quantitative analysis was performed on placental tissues collected from both preeclampsia patients and healthy control groups. Results We identified 70 differentially expressed NETs genes and found 367 macrophage-related genes through WGCNA analysis. Machine learning identified three key genes: FNBP1L, NMUR1, and PP14571. These three key genes were significantly associated with immune cell content and enriched in multiple signaling pathways. Specifically, these genes were upregulated in PE patients. These findings establish the expression patterns of three key genes associated with M2 macrophage infiltration, providing potential targets for understanding the pathogenesis and treatment of PE. Additionally, CMap results suggested four potential drugs, including Ttnpb, Doxorubicin, Tyrphostin AG 825, and Tanespimycin, which may have the potential to reverse pre-eclampsia. Conclusion Studying the expression levels of three key genes in pre-eclampsia provides valuable insights into the prevention and treatment of this condition. We propose that these genes play a crucial role in regulating the maternal-fetal immune microenvironment in PE patients, and the pathways associated with these genes offer potential avenues for exploring the molecular mechanisms underlying preeclampsia and identifying therapeutic targets. Additionally, by utilizing the Connectivity Map database, we identified drug targets like Ttnpb, Doxorubicin, Tyrphostin AG 825, and Tanespimycin as potential clinical treatments for preeclampsia.
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Affiliation(s)
- Jinfeng Cao
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China
- Joint International Research Laboratory of Reproduction and Development of Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Wenxin Jiang
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China
- Joint International Research Laboratory of Reproduction and Development of Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Zhe Yin
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China
- Joint International Research Laboratory of Reproduction and Development of Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Na Li
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China
- Joint International Research Laboratory of Reproduction and Development of Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Chao Tong
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Hongbo Qi
- Chongqing Key Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China
- Joint International Research Laboratory of Reproduction and Development of Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
- Department of Obstetrics and Gynecology, Women and Children’s Hospital of Chongqing Medical University, Chongqing, China
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Kontovazainitis CG, Gialamprinou D, Theodoridis T, Mitsiakos G. Hemostasis in Pre-Eclamptic Women and Their Offspring: Current Knowledge and Hemostasis Assessment with Viscoelastic Tests. Diagnostics (Basel) 2024; 14:347. [PMID: 38337863 PMCID: PMC10855316 DOI: 10.3390/diagnostics14030347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 01/22/2024] [Accepted: 01/30/2024] [Indexed: 02/12/2024] Open
Abstract
Pre-eclampsia (PE) is a placenta-mediated disease and remains a major cause of maternal and neonatal mortality and morbidity. As PE develops, normal pregnancy's hypercoagulable balance is disrupted, leading to platelet hyperactivation, excessive pathological hypercoagulability, and perturbed fibrinolysis. This narrative review aims to summarize the current knowledge regarding hemostasis in PE compared with healthy gestation and the potential effects of maternal PE on neonatal hemostasis. Finally, it aims to discuss hemostasis assessments for normal pregnancies and PE, emphasizing the role of viscoelastic tests, namely, thromboelastography (TEG) and thromboelastometry (ROTEM), for monitoring PE-associated hemostatic alterations. The use of TEG/ROTEM for assessing the hemostatic profile of PE women has been little considered, even though conventional coagulation tests (CCTs) have not helped to monitor hemostasis in this population. Compared with normal pregnancy, TEG/ROTEM in PE reveals an excessive hypercoagulability analogous with the severity of the disease, characterized by higher-stability fibrin clots. The TEG/ROTEM parameters can reflect PE severity and may be used for monitoring and as predictive markers for the disease.
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Affiliation(s)
- Christos-Georgios Kontovazainitis
- 2nd Neonatal Department and Neonatal Intensive Care Unit (NICU), “Papageorgiou” University Hospital, Aristotle University of Thessaloniki, 56403 Thessaloniki, Greece; (C.-G.K.); (D.G.)
| | - Dimitra Gialamprinou
- 2nd Neonatal Department and Neonatal Intensive Care Unit (NICU), “Papageorgiou” University Hospital, Aristotle University of Thessaloniki, 56403 Thessaloniki, Greece; (C.-G.K.); (D.G.)
| | - Theodoros Theodoridis
- 1st Department of Obstetrics and Gynecology, “Papageorgiou” University Hospital, Aristotle University of Thessaloniki, 56403 Thessaloniki, Greece;
| | - Georgios Mitsiakos
- 2nd Neonatal Department and Neonatal Intensive Care Unit (NICU), “Papageorgiou” University Hospital, Aristotle University of Thessaloniki, 56403 Thessaloniki, Greece; (C.-G.K.); (D.G.)
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Wang X, Kong Y, Chen X, Weng Z, Li B. Pertinence between risk of preeclampsia and the renin-angiotensin-aldosterone system (RAAS) gene polymorphisms: an updated meta-analysis based on 73 studies. J OBSTET GYNAECOL 2023; 43:2171782. [PMID: 36718570 DOI: 10.1080/01443615.2023.2171782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The aetiological mechanism of preeclampsia (PE) is unclear exactly, so we attempted to investigate the association between susceptibility to preeclampsia and renin-angiotensin-aldosterone system (RAAS) gene polymorphisms to explore the aetiology in terms of genetics. A systematic search was performed in electronic databases to identify relevant studies. Eventually 73 studies were enrolled, odds ratios were generated by 5 genetic models. In overall analysis, significant associations were detected for AGT M235T, AT1R A1166C and CYP11B2 C344T whereas negative correlation was shown for AGT T174M. As stratified by race and geography, AGT 235T allele and AT1R 1166C allele increased preeclampsia risk and AGT T174M was justified uncorrelated with preeclampsia. Our meta-analysis illustrated that AGT 235T allele and AT1R 1166C allele increased and CYP11B2 344T allele decreased preeclampsia risk while AGT T174M polymorphism did not change preeclampsia risk. Hence, pregnant women carrying high-risk genotypes need strengthened management to prevent and early identification of preeclampsia.
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Affiliation(s)
- Xin Wang
- Department of Obstetrics, Qingdao Municipal Hospital, Affiliated to Qingdao University, Medical College, Qingdao, China
| | - Yujie Kong
- Department of Obstetrics, Qingdao Municipal Hospital, Affiliated to Qingdao University, Medical College, Qingdao, China
| | - Xi Chen
- School of Health, Brooks College (Sunnyvale), Sunnyvale, CA, USA.,Department of Epidemiology and Statistics, School of Public Health, Medical College, Zhejiang University, Hangzhou, China
| | - Zhanping Weng
- Department of Obstetrics, Qingdao Municipal Hospital, Affiliated to Qingdao University, Medical College, Qingdao, China
| | - Baolai Li
- Department of Obstetrics, Qingdao Municipal Hospital, Affiliated to Qingdao University, Medical College, Qingdao, China
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Pavlidou E, Papadopoulou SK, Alexatou O, Tsourouflis G, Antasouras G, Louka A, Chatziprodromidou IP, Mentzelou M, Sampani A, Chrysafi M, Apostolou T, Dakanalis A, Papadopoulou VG, Giaginis C. Association of Gestational Hypertension with Sociodemographic and Anthropometric Factors, Perinatal Outcomes, Breastfeeding Practices, and Mediterranean Diet Adherence: A Cross-Sectional Study. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:2103. [PMID: 38138206 PMCID: PMC10744616 DOI: 10.3390/medicina59122103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 11/23/2023] [Accepted: 11/29/2023] [Indexed: 12/24/2023]
Abstract
Background and Objectives: Gestational hypertension has been associated with several pregnancy short-term and long-term complications, affecting both the mother and her infant's health. The present study aims to assess the potential association of gestational hypertension with sociodemographic and anthropometry factors, perinatal outcomes, breastfeeding habits, and Mediterranean diet (MD) compliance. Materials and Methods: This is a cross-sectional study conducted on 5271 mothers that was carried out after delivery. The anthropometry characteristics and perinatal outcomes were retrieved from the mothers' medical records. Sociodemographic characteristics, MD adherence, and breastfeeding habits were assessed via one-to-one interviews of the assigned women with qualified staff. Results: Maternal older age, being employed, family history of gestational hypertension, overweight/obesity before gestation, and abnormal gestational weight gain (GWG) independently increased the risk of developing gestational hypertension. Moreover, gestational hypertension was independently related with a greater incidence of abnormal childbirth body weight and preterm birth, not exclusively breastfeeding, and lower levels of MD adherence. Conclusions: This study highlights the importance of informing future mothers about the risk factors of gestational hypertension, underlining also that a healthy lifestyle, which simultaneously includes a healthy nutritional pattern such as MD, may decrease the risk of developing gestational hypertension and the subsequent pregnancy complications.
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Affiliation(s)
- Eleni Pavlidou
- Department of Food Science and Nutrition, School of the Environment, University of the Aegean, 81400 Myrina, Lemnos, Greece; (E.P.); (O.A.); (G.A.); (A.L.); (M.M.); (M.C.)
| | - Sousana K. Papadopoulou
- Department of Nutritional Sciences and Dietetics, School of Health Sciences, International Hellenic University, 57400 Thessaloniki, Greece; (S.K.P.); (V.G.P.)
| | - Olga Alexatou
- Department of Food Science and Nutrition, School of the Environment, University of the Aegean, 81400 Myrina, Lemnos, Greece; (E.P.); (O.A.); (G.A.); (A.L.); (M.M.); (M.C.)
| | - Gerasimos Tsourouflis
- Second Department of Propedeutic Surgery, Medical School, University of Athens, 11527 Athens, Greece;
| | - Georgios Antasouras
- Department of Food Science and Nutrition, School of the Environment, University of the Aegean, 81400 Myrina, Lemnos, Greece; (E.P.); (O.A.); (G.A.); (A.L.); (M.M.); (M.C.)
| | - Aikaterini Louka
- Department of Food Science and Nutrition, School of the Environment, University of the Aegean, 81400 Myrina, Lemnos, Greece; (E.P.); (O.A.); (G.A.); (A.L.); (M.M.); (M.C.)
| | | | - Maria Mentzelou
- Department of Food Science and Nutrition, School of the Environment, University of the Aegean, 81400 Myrina, Lemnos, Greece; (E.P.); (O.A.); (G.A.); (A.L.); (M.M.); (M.C.)
| | - Anastasia Sampani
- First Department of Pathology, Medical School, University of Athens, 11527 Athens, Greece;
| | - Maria Chrysafi
- Department of Food Science and Nutrition, School of the Environment, University of the Aegean, 81400 Myrina, Lemnos, Greece; (E.P.); (O.A.); (G.A.); (A.L.); (M.M.); (M.C.)
| | - Thomas Apostolou
- Department of Physiotherapy, Faculty of Health Sciences, International Hellenic University, 57400 Thessaloniki, Greece;
| | - Antonios Dakanalis
- School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy;
- Fondazione IRCCS San Gerardo dei Tintori, 20900 Monza, Italy
| | - Vasiliki G. Papadopoulou
- Department of Nutritional Sciences and Dietetics, School of Health Sciences, International Hellenic University, 57400 Thessaloniki, Greece; (S.K.P.); (V.G.P.)
| | - Constantinos Giaginis
- Department of Food Science and Nutrition, School of the Environment, University of the Aegean, 81400 Myrina, Lemnos, Greece; (E.P.); (O.A.); (G.A.); (A.L.); (M.M.); (M.C.)
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Zitouni H, Chayeb V, Ben Ali Gannoun M, Raguema N, Bendhaher S, Zouari I, Ben Abdennebi H, Guibourdenche J, Mahjoub T, Gaddour K, Almawi WY. Preeclampsia is associated with reduced renin, aldosterone, and PlGF levels, and increased sFlt-1/PlGF ratio, and specific angiotensin-converting enzyme Ins-Del gene variants. J Reprod Immunol 2023; 157:103924. [PMID: 36870296 DOI: 10.1016/j.jri.2023.103924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 02/25/2023] [Accepted: 02/27/2023] [Indexed: 03/02/2023]
Abstract
We investigated the association of angiotensin-converting enzyme (ACE) insertion/deletion (I/D) polymorphism with preeclampsia (PE) in Tunisian women. ACE I/D genotyping was done by PCR in 342 pregnant women with PE and 289 healthy pregnant women. The association between ACE I/D and PE and associated features were also evaluated. Decreased active renin concentration, plasma aldosterone concentration, and placental growth factor (PlGF) were observed in PE cases, while soluble fms-like tyrosine kinase-1 (sFlt-1)/PlGF ratio was significantly higher in the PE group. Distribution of ACE I/D alleles and genotypes were comparable between women with PE and control women. A significant difference in the frequency of the I/I genotype was seen between PE cases and control women according to the recessive model, with a trend towards association in the codominant model. Carriers of the I/I genotype had significantly higher infant birth weights compared to the I/D and the D/D genotype carriers. A dose-dependent relationship was also seen in VEGF and PlGF plasma levels and specific ACE I/D genotypes, with the lowest VEGF levels seen in the I/I genotype carriers compared to the D/D genotype carriers. Similarly, the I/I genotype carriers had the lowest PlGF levels compared to I/D and D/D genotype carriers. Furthermore, when studying the linkage between PE features, we found a positive correlation between PAC and PIGF. Our study suggests a role for ACE I/D polymorphism in the pathogenesis of PE, possibly through modulating VEGF and PlGF levels and infant birth weight, and highlights the relationship between PAC and PlGF.
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Affiliation(s)
- Hedia Zitouni
- Laboratory of Human Genome and Multifactorial Diseases, Faculty of Pharmacy of Monastir, University of Monastir, Monastir 5000, Tunisia; Private Laboratory of Clinical Biology, Place Pasteur Gafsa, 2100, Tunisia; Faculty of Science of Bizerte, University of Carthage, Tunisia
| | - Vera Chayeb
- Laboratory of Human Genome and Multifactorial Diseases, Faculty of Pharmacy of Monastir, University of Monastir, Monastir 5000, Tunisia; Faculty of Science of Bizerte, University of Carthage, Tunisia
| | - Marwa Ben Ali Gannoun
- Laboratory of Human Genome and Multifactorial Diseases, Faculty of Pharmacy of Monastir, University of Monastir, Monastir 5000, Tunisia; Faculty of Science of Bizerte, University of Carthage, Tunisia
| | - Nozha Raguema
- Laboratory of Human Genome and Multifactorial Diseases, Faculty of Pharmacy of Monastir, University of Monastir, Monastir 5000, Tunisia; Faculty of Science of Bizerte, University of Carthage, Tunisia
| | - Sameh Bendhaher
- Private Laboratory of Clinical Biology, Place Pasteur Gafsa, 2100, Tunisia
| | - Ines Zouari
- Centre of Maternity and Neonatology, Monastir, Tunisia
| | - Hassen Ben Abdennebi
- Laboratory of Human Genome and Multifactorial Diseases, Faculty of Pharmacy of Monastir, University of Monastir, Monastir 5000, Tunisia
| | - Jean Guibourdenche
- Department of Biological Endocrinology, CHU Cochin, AP-HP, Paris, France
| | - Touhami Mahjoub
- Laboratory of Human Genome and Multifactorial Diseases, Faculty of Pharmacy of Monastir, University of Monastir, Monastir 5000, Tunisia
| | - Kamel Gaddour
- Laboratory of Bioresources: Integrative Biology and Valorisation BIOLIVAL, Higher Institute of Biotechnology of Monastir, University of Monastir, Tunisia
| | - Wassim Y Almawi
- Faculté des Sciences de Tunis; Université de Tunis El Manar, Tunis, Tunisia.
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Amruta N, Kandikattu HK, Intapad S. Cardiovascular Dysfunction in Intrauterine Growth Restriction. Curr Hypertens Rep 2022; 24:693-708. [PMID: 36322299 DOI: 10.1007/s11906-022-01228-y] [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] [Accepted: 11/09/2021] [Indexed: 11/30/2022]
Abstract
PURPOSE OF REVIEW We highlight important new findings on cardiovascular dysfunction in intrauterine growth restriction. RECENT FINDINGS Intrauterine growth restriction (IUGR) is a multifactorial condition which negatively impacts neonatal growth during pregnancy and is associated with health problems during the lifespan. It affects 5-15% of all pregnancies in the USA and Europe with varying percentages in developing countries. Epidemiological studies have reported that IUGR is associated with the pathogenesis of hypertension, activation of the renin-angiotensin system (RAS), disruption in placental-mTORC and TGFβ signaling cascades, and endothelial dysfunction in IUGR fetuses, children, adolescents, and adults resulting in the development of cardiovascular diseases (CVD). Experimental studies are needed to investigate therapeutic measures to treat increased blood pressure (BP) and long-term CVD problems in people affected by IUGR. We outline the mechanisms mediating fetal programming of hypertension in developing CVD. We have reviewed findings from different experimental models focusing on recent studies that demonstrate CVD in IUGR.
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Affiliation(s)
- Narayanappa Amruta
- Department of Pharmacology, Tulane University School of Medicine, 1430 Tulane Avenue, #8683, New Orleans, LA, 70112-2699, USA
| | - Hemanth Kumar Kandikattu
- Department of Medicine, Section of Pulmonary Diseases, Tulane University School of Medicine, New Orleans, LA, 70112, USA
| | - Suttira Intapad
- Department of Pharmacology, Tulane University School of Medicine, 1430 Tulane Avenue, #8683, New Orleans, LA, 70112-2699, USA.
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Wei W, Wang X, Zhou Y, Shang X, Yu H. The genetic risk factors for pregnancy-induced hypertension: Evidence from genetic polymorphisms. FASEB J 2022; 36:e22413. [PMID: 35696055 DOI: 10.1096/fj.202101853rr] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 05/29/2022] [Accepted: 06/02/2022] [Indexed: 11/11/2022]
Abstract
Pregnancy-induced hypertension (PIH) is a multifactorial and severe pregnancy complication including preeclampsia/eclampsia, gestational hypertension, chronic (pre-existing) hypertension, and preeclampsia/eclampsia variants superimposed on chronic hypertension. PIH-induced maternal mortality accounts for approximately 9% of all maternal deaths over the world. A large number of case-control studies have established the importance of various genetic factors in the occurrence and development of PIH. In this narrative review, we summarized the genetic risk factors involved in the renin-angiotensin system, endothelin system, inflammatory factors, oxidative stress, and other functional networks, with the aim of sorting out the genetic factors that may play a potential role in PIH and providing new ideas to elucidate the pathogenesis of PIH.
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Affiliation(s)
- Wenwen Wei
- School of Basic Medical Sciences, Special Key Laboratory of Ocular Diseases of Guizhou Province, Zunyi Medical University, Zunyi, China
| | - Xin Wang
- School of Basic Medical Sciences, Special Key Laboratory of Ocular Diseases of Guizhou Province, Zunyi Medical University, Zunyi, China
| | - Yuanzhong Zhou
- School of Public Health, Zunyi Medical University, Zunyi, China
| | - Xuejun Shang
- Department of Andrology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Hongsong Yu
- School of Basic Medical Sciences, Special Key Laboratory of Ocular Diseases of Guizhou Province, Zunyi Medical University, Zunyi, China
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Mistry HD, Klossner R, Kallol S, Lüthi MP, Moser R, Schneider H, Ontsouka EC, Kurlak LO, Mohaupt MG, Albrecht C. Effects of aldosterone on the human placenta: Insights from placental perfusion studies. Placenta 2022; 123:32-40. [DOI: 10.1016/j.placenta.2022.03.129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 03/21/2022] [Accepted: 03/23/2022] [Indexed: 11/24/2022]
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Ashour E, Gouda W, Mageed L, Okasha A, Afify M, Fawzi OM. Association of gene polymorphisms of ACE, AGT, and ARNT-like protein 1 with susceptibility to gestational diabetes. EGYPTIAN JOURNAL OF MEDICAL HUMAN GENETICS 2022. [DOI: 10.1186/s43042-022-00273-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background and aims
Gestational diabetes mellitus is well-defined as glucose intolerance first documented during pregnancy. In this study, we examined the possible associations between I/D polymorphism of the angiotensin-converting enzyme gene, the M235T variant of angiotensinogen gene, and the rs7950226 polymorphism of the ARNT-like protein-1 (BMAL1) gene and the risk for diabetes in Egyptian pregnant women.
Subjects and methods
This study recruited 160 gestational diabetes cases and 165 controls. Genomic DNA was derived from peripheral blood leukocytes and ACE gene (I/D) genotyping was performed using the method of polymerase chain reaction and the polymerase chain reaction-based restriction fragment length polymorphism was used for identifying the M235T variant of AGT gene and the rs7950226 polymorphism of the BMAL1.
Results
The II, ID, and DD genotypes of the ACE gene have significant differences in cases compared to controls (P = 0.000 and X2 = 81.77). The M235T polymorphism of the AGT gene was increased with gestational diabetes risk. Furthermore, the AA genotype of the BMAL1 rs7950226 gene was significantly related to the gestational diabetes risk (P = 0.000 and X2 = 52.82). Furthermore, the allele frequencies of the three variants have significant variances between cases and control.
Conclusion
This study suggested significant associations between ACE (DD), AGT (TT), and BMAL1 rs7950226 (AA) gene polymorphisms with gestational diabetes susceptibility and there was a possibility to identify that II + MM + GG as protective haplotypes and DD + TT + AA as risk haplotypes for gestational diabetes.
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Modelling Female Physiology from Head to Toe: Impact of Sex Hormones, Menstrual Cycle, and Pregnancy. J Theor Biol 2022; 540:111074. [DOI: 10.1016/j.jtbi.2022.111074] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 02/18/2022] [Accepted: 02/21/2022] [Indexed: 12/14/2022]
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Garner KL, Bowdridge EC, Griffith JA, DeVallance E, Seman MG, Engels KJ, Groth CP, Goldsmith WT, Wix K, Batchelor TP, Nurkiewicz TR. Maternal Nanomaterial Inhalation Exposure: Critical Gestational Period in the Uterine Microcirculation is Angiotensin II Dependent. Cardiovasc Toxicol 2022; 22:167-180. [PMID: 35066857 PMCID: PMC9013006 DOI: 10.1007/s12012-021-09712-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 12/07/2021] [Indexed: 11/03/2022]
Abstract
Maternal inhalation exposure to engineered nanomaterials (ENM) has been associated with microvascular dysfunction and adverse cardiovascular responses. Pregnancy requires coordinated vascular adaptation and growth that are imperative for survival. Key events in pregnancy hallmark distinct periods of gestation such as implantation, spiral artery remodeling, placentation, and trophoblast invasion. Angiotensin II (Ang II) is a critical vasoactive mediator responsible for adaptations and is implicated in the pathology of preeclampsia. If perturbations occur during gestation, such as those caused by ENM inhalation exposure, then maternal-fetal health consequences may occur. Our study aimed to identify the period of gestation in which maternal microvascular functional and fetal health are most vulnerable. Additionally, we wanted to determine if Ang II sensitivity and receptor density is altered due to exposure. Dams were exposed to ENM aerosols (nano-titanium dioxide) during three gestational windows: early (EE, gestational day (GD) 2-6), mid (ME, GD 8-12) or late (LE, GD 15-19). Within the EE group dry pup mass decreased by 16.3% and uterine radial artery wall to lumen ratio (WLR) increased by 25.9%. Uterine radial artery response to Ang II sensitivity increased by 40.5% in the EE group. Ang II receptor density was altered in the EE and LE group with decreased levels of AT2R. We conclude that early gestational maternal inhalation exposures resulted in altered vascular anatomy and physiology. Exposure during this time-period results in altered vascular reactivity and changes to uterine radial artery WLR, leading to decreased perfusion to the fetus and resulting in lower pup mass.
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Affiliation(s)
- Krista L Garner
- Department of Physiology and Pharmacology, West Virginia University School of Medicine, Morgantown, WV, USA
- Center for Inhalation Toxicology (iTOX), West Virginia University School of Medicine, Morgantown, WV, USA
| | - Elizabeth C Bowdridge
- Department of Physiology and Pharmacology, West Virginia University School of Medicine, Morgantown, WV, USA
- Center for Inhalation Toxicology (iTOX), West Virginia University School of Medicine, Morgantown, WV, USA
| | - Julie A Griffith
- Department of Physiology and Pharmacology, West Virginia University School of Medicine, Morgantown, WV, USA
- Center for Inhalation Toxicology (iTOX), West Virginia University School of Medicine, Morgantown, WV, USA
| | - Evan DeVallance
- Department of Physiology and Pharmacology, West Virginia University School of Medicine, Morgantown, WV, USA
- Center for Inhalation Toxicology (iTOX), West Virginia University School of Medicine, Morgantown, WV, USA
| | - Madison G Seman
- Division of Exercise Physiology, West Virginia University School of Medicine, Morgantown, WV, USA
| | - Kevin J Engels
- Department of Physiology and Pharmacology, West Virginia University School of Medicine, Morgantown, WV, USA
| | - Caroline P Groth
- Department of Epidemiology and Biostatistics, West Virginia University School of Public Health, Morgantown, WV, USA
| | - William T Goldsmith
- Department of Physiology and Pharmacology, West Virginia University School of Medicine, Morgantown, WV, USA
- Center for Inhalation Toxicology (iTOX), West Virginia University School of Medicine, Morgantown, WV, USA
| | - Kim Wix
- Department of Physiology and Pharmacology, West Virginia University School of Medicine, Morgantown, WV, USA
| | - Thomas P Batchelor
- Department of Physiology and Pharmacology, West Virginia University School of Medicine, Morgantown, WV, USA
- Center for Inhalation Toxicology (iTOX), West Virginia University School of Medicine, Morgantown, WV, USA
| | - Timothy R Nurkiewicz
- Department of Physiology and Pharmacology, West Virginia University School of Medicine, Morgantown, WV, USA.
- Center for Inhalation Toxicology (iTOX), West Virginia University School of Medicine, Morgantown, WV, USA.
- Department of Physiology and Pharmacology, Robert C. Byrd Health Sciences Center, West Virginia University, 64 Medical Center Drive, Morgantown, WV, 26506-9229, USA.
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Artemieva KA, Nizyaeva NV, Baev OR, Romanov AY, Khlestova GV, Boltovskaya MN, Shchegolev AI, Kakturskiy LV. Regulation of the Placental Renin-Angiotensin-Aldosterone System in Early- and Late-Onset Preeclampsia. DOKL BIOCHEM BIOPHYS 2022; 507:256-263. [PMID: 36580212 PMCID: PMC9928934 DOI: 10.1134/s1607672922060011] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 07/14/2022] [Accepted: 07/18/2022] [Indexed: 12/30/2022]
Abstract
Preeclampsia (PE) is one of the most dangerous complications of pregnancy, characterized by hypertension, proteinuria, and symptoms of multiple organ failure, which are detected de novo after 20 weeks of pregnancy. The renin-angiotensin-aldosterone system (RAAS) is one of the first to recognize pregnancy and is an important regulator of blood pressure. The placenta has its own RAAS, the role of which in the development of PE is not fully understood. In this work, for the first time, we characterized the expression of RAAS components and miRNAs controlling it in the placenta at various times of PE manifestation. The data obtained will allow the development of a new strategy in the future for the search for therapeutic agents for patients suffering from PE and cardiovascular diseases.
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Affiliation(s)
- K. A. Artemieva
- Avtsyn Research Institute of Human Morphology, Petrovsky National Research Center of Surgery, Moscow, Russia
| | - N. V. Nizyaeva
- Avtsyn Research Institute of Human Morphology, Petrovsky National Research Center of Surgery, Moscow, Russia
| | - O. R. Baev
- Kulakov National Medical Research Center for Obstetrics, Gynecology, and Perinatology, Ministry of Healthcare of Russian Federation, Moscow, Russia
| | - A. Yu. Romanov
- Kulakov National Medical Research Center for Obstetrics, Gynecology, and Perinatology, Ministry of Healthcare of Russian Federation, Moscow, Russia
| | - G. V. Khlestova
- Kulakov National Medical Research Center for Obstetrics, Gynecology, and Perinatology, Ministry of Healthcare of Russian Federation, Moscow, Russia
| | - M. N. Boltovskaya
- Avtsyn Research Institute of Human Morphology, Petrovsky National Research Center of Surgery, Moscow, Russia
| | - A. I. Shchegolev
- Kulakov National Medical Research Center for Obstetrics, Gynecology, and Perinatology, Ministry of Healthcare of Russian Federation, Moscow, Russia
| | - L. V. Kakturskiy
- Avtsyn Research Institute of Human Morphology, Petrovsky National Research Center of Surgery, Moscow, Russia
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14
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Ali F, Shen A, Islam W, Saleem MZ, Muthu R, Xie Q, Wu M, Cheng Y, Chu J, Lin W, Peng J. Role of MicroRNAs and their corresponding ACE2/Apelin signaling pathways in hypertension. Microb Pathog 2021; 162:105361. [PMID: 34919993 DOI: 10.1016/j.micpath.2021.105361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 12/12/2021] [Accepted: 12/12/2021] [Indexed: 11/28/2022]
Abstract
Hypertension is controlled via the alteration of microRNAs (miRNAs), their therapeutic targets angiotensin II type I receptor (AT1R) and cross talk of signaling pathways. The stimulation of the Ang II/AT1R pathway by deregulation of miRNAs, has also been linked to cardiac remodeling as well as the pathophysiology of high blood pressure. As miRNAs have been associated to ACE2/Apelin and Mitogen-activated protein kinases (MAPK) signaling, it has revealed an utmost protective impact over hypertension and cardiovascular system. The ACE2-coupled intermodulation between RAAS, Apelin system, MAPK signaling pathways, and miRNAs reveal the practicalities of high blood pressure. The research of miRNAs may ultimately lead to the expansion of an innovative treatment strategy for hypertension, which indicates the need to explore them further at the molecular level. Therefore, here we have focused on the mechanistic importance of miRNAs in hypertension, ACE2/Apelin signaling as well as their biological functions, with a focus on interplay and crosstalk between ACE2/Apelin signaling, miRNAs, and hypertension, and the progress in miRNA-based diagnostic techniques with the goal of facilitating the development of new hypertension-controlling therapeutics.
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Affiliation(s)
- Farman Ali
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China
| | - Aling Shen
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China
| | - Waqar Islam
- Xinjiang Key Laboratory of Desert Plant Roots Ecology and Vegetation Restoration, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | | | - Ragunath Muthu
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China
| | - Qiurong Xie
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China
| | - Meizhu Wu
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China
| | - Ying Cheng
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China
| | - Jiangfeng Chu
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China
| | - Wei Lin
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China
| | - Jun Peng
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China.
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15
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The Prevalence and Risk Factors of Hypokalemia in Pregnancy-Related Hospitalizations: A Nationwide Population Study. Int J Nephrol 2021; 2021:9922245. [PMID: 34258064 PMCID: PMC8261188 DOI: 10.1155/2021/9922245] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 06/18/2021] [Indexed: 11/17/2022] Open
Abstract
Background There are no nationwide population studies conducted to analyze the prevalence and risk factors associated with hypokalemia during pregnancy in the U.S. Method We retrieved data from the Nationwide Inpatient Sample (NIS) and the National Inpatient Sample of Healthcare Cost and Utilization Project (HCUP) for pregnant patients with hypokalemia from 2012 to 2014. We used a chi-squared test to analyze categorical variables and an adjusted Wald test to compare quantitative variables. We applied logistic regression models to calculate adjusted odds ratios (ORs) with 95% confidence intervals (95% CIs) to identify the risk factors for hypokalemia. We used a p value <0.05 as the cutoff for statistical significance. Result Among 12,431,909 pregnancy-related discharges, females of younger age (mean age 27.0 ± 6.2 vs. 28.1 ± 6.0, p < 0.001), of African American race, using government-paid insurance, with an income level in the first quartile, and of a higher Charlson Comorbidity Index score (≥1) were found to have a higher likelihood of hypokalemia during pregnancy (p < 0.001). Gestational hypertension (GH) (including pre-eclampsia and eclampsia, aOR 2.03, 95% CI 1.94-2.12, p < 0.001), hyperemesis gravidarum (aOR 33.18, 95% CI 31.61-34.83, p < 0.001), and post-partum hemorrhage (aOR 1.42, 95% CI 1.31-1.53, p < 0.001) were found to be independently associated with a higher rate of hypokalemia during pregnancy. Conclusion The prevalence of hypokalemia during pregnancy was less than 1% in this large, nationwide population-based study. There were significant differences between those patients who developed hypokalemia during pregnancy. Notably, those who had hypokalemia were younger, of African American race, and of a low-income level. Congestive heart failure, coronary artery disease, Cushing's syndrome, GH, and hyperemesis gravidarum were found to be associated with hypokalemia during pregnancy.
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Association of maternal angiotensin II type 1 and type 2 receptor combination genotypes with susceptibility to early-onset preeclampsia. J Hum Hypertens 2021; 36:271-279. [PMID: 33758348 DOI: 10.1038/s41371-021-00524-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 02/25/2021] [Accepted: 03/03/2021] [Indexed: 11/08/2022]
Abstract
Allelic variations affecting the activity of the maternal renin-angiotensin system may play a role in the development of hypertensive disorders of pregnancy like preeclampsia, its more severe early-onset form, and intrauterine growth restriction. We examined the association of common allelic variants of angiotensin II type 1 and type 2 receptor genes (AT1R and AT2R) sorted in five AT1R/AT2R receptor combination genotype groups with susceptibility to early-onset preeclampsia (EOP). The occurrence of AT1R (A1166C) and A2TR (C3123A) alleles in wild type (AA, CC), heterozygous (A/C, C/A), and homozygous (C/C, A/A) states was recorded in 84 women with a history of EOP and 84 age-matched controls sorted in five AT1R/AT2R receptor combination genotype (wild type: AA/CC, one mutant: AA/CA, AC/CC, two mutant: AC/CA, AA/AA, CC/CC, three mutants: AC/AA, CC/CA and four mutant: CC/AA) groups, by polymerase chain reaction-RFLP analysis. Three mutant receptor combination genotype carriers were more common in women with a history of EOP than in controls (26.18% vs. 4.76%, p = 0.003, OR = 8.25). Receptor combination genotyping may be of clinical value in: (a) maternal prediction of susceptibility to EOP, (b) disease subtyping for directed studies with receptor signaling antagonists, (c) the broader study of hypertension.
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Gathiram P, Moodley J. The Role of the Renin-Angiotensin-Aldosterone System in Preeclampsia: a Review. Curr Hypertens Rep 2020; 22:89. [PMID: 32893333 DOI: 10.1007/s11906-020-01098-2] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
PURPOSE OF REVIEW Preeclampsia (PE) is a complex human pregnancy-specific condition and is clinically characterized by new onset hypertension and proteinuria in the second half of pregnancy. The precise etiology of PE is unknown, but much of the pathophysiology has been elucidated, and it is accepted that the disorder is multifactorial in nature. Historically, because of the presence of proteinuria, the role of the renin-angiotensin-aldosterone system (RAAS) has been considered in the etiology of PE. However, the results of studies (including maternal circulatory angiotensin II, urinary angiotensinogen, plasma renin and prorenin, AT1 receptor antibodies, and gene polymorphisms) on the role of the RAAS in the etiology of PE have proved controversial. The purpose of this narrative review was to evaluate the contemporary literature on the RAAS and its role in the pathophysiology of pregnancy. RECENT FINDINGS The current review shows that although the RAAS has a role in the development of normal pregnancy, it does not have a significant role in the pathophysiology of PE except for the AT1-AA components. Despite many researchers having measured increases in s[P}RR and [P]RR, this may be independent of the RAAS. Our view is in keeping with contemporary thinking that the placenta rather than the RAAS plays a central role in elaborating pro-inflammatory factors (antiangiogenic and angiogenic) into the maternal circulation resulting in widespread endothelial dysfunction in all organ systems including the renal system.
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Affiliation(s)
- Premjith Gathiram
- Department of Family Medicine, School of Nursing and Public Health, University of KwaZulu-Natal, Durban, South Africa
| | - Jagidesa Moodley
- Department of Obstetrics and Gynaecology, Women's Health and HIV Research Group, University of KwaZulu-Natal, Durban, South Africa. .,College of Health Sciences, University of KwaZulu-Natal, Durban, KwaZulu-Natal, South Africa.
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18
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The role of LNPEP and ANPEP gene polymorphisms in the pathogenesis of pre-eclampsia. Eur J Obstet Gynecol Reprod Biol 2020; 252:160-165. [PMID: 32619880 DOI: 10.1016/j.ejogrb.2020.06.037] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 06/15/2020] [Accepted: 06/19/2020] [Indexed: 12/15/2022]
Abstract
OBJECTIVE The exact role of renin angiotensin system (RAS) in the pathogenesis of pre-eclampsia has not been established. Gene polymorphisms, however, have been implicated in the pathophysiology. Therefore, the aim of this study was to investigate the association of the Angiotensin IV receptor and aminopeptidase-N in the pathogenesis of pre-eclampsia. STUDY DESIGN Stored blood samples of 637 South African women of African ancestry were utilized. The study population was divided into controls (n = 280) and pre-eclampsia (n = 357). Pre-eclampsia was sub-divided into early (n = 187) and late (n = 170) onset subtypes. DNA was extracted from whole blood and genotyped. Odds ratio and 95 % confidence intervals were used to assess the association. RESULTS The allele and genotype frequencies of the angiotensin receptor IV and aminopeptidase-N showed no significant difference between the control versus the pre-eclampsia groups. Similarly, allele and genotype distributions of the control group versus the subtypes of pre-eclampsia (early onset and late onset pre-eclampsia) showed no significant differences. CONCLUSION The single nucleotide polymorphisms of angiotensin IV receptor (rs18059) and aminopeptidase-N (rs6496603) are not associated with the pathogenesis of pre-eclampsia in women of African ancestry.
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Khaliq OP, Konoshita T, Moodley J, Naicker T. Soluble angiotensin IV receptor levels in preeclampsia: is there a variation? J Matern Fetal Neonatal Med 2020; 35:1156-1161. [PMID: 32208780 DOI: 10.1080/14767058.2020.1743665] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Objective: To measure the concentration of plasma soluble angiotensin IV receptor (sAT-4), a component of the renin-angiotensin system in healthy normotensive pregnancies and preeclampsia.Study design: Stored maternal plasma samples obtained at the time of diagnosis from pregnant women of African ancestry were stratified into normotensive and preeclampsia groups. Preeclampsia was subdivided into early-onset, late-onset, and into and severe preeclampsia. Plasma concentrations of sAT-4 were measured at 450 nm using the ELISA technique (LNPEP KIT).Results: The systolic and diastolic blood pressure (BP) levels of the normotensive group were statistically lower compared to preeclampsia groups (p < .05) and the mean gestational age in early-onset preeclampsia was lower compared to late-onset preeclampsia and the normotensive group (p < .05). Plasma sAT-4 levels were significantly elevated (p < .0001) in the normotensive group (median 1.95, range 1.89-2.02 ng/ml) compared to the preeclampsia group (median 1.55, range 1.42-1.74 ng/ml), regardless of gestational age. Soluble AT-4 was decreased in relation to the severity of preeclampsia (p < .001), the level in preeclampsia without severe features (median 1.57, range 1.42-1.74 ng/ml) was significantly higher than in preeclampsia with severe features (median 1.51, range 1.42-1.55 ng/ml). There was no significant difference in the sAT-4 level between early-onset preeclampsia (1.60 ± 0.13 ng/ml) and late-onset preeclampsia (1.65 ± 0.29 ng/ml) groups (p = .59).Conclusion: Plasma circulating levels of sAT-4 in women with severe features of preeclampsia had lower levels than normotensives and those with preeclampsia without severe features.
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Affiliation(s)
- Olive P Khaliq
- Optics and Imaging Centre, Doris Duke Medical Research Institute, University of KwaZulu-Natal, Durban, South Africa
| | - Tadashi Konoshita
- Third Department of Internal Medicine, University of Fukui Faculty of Medicine Sciences, Fukui, Japan
| | - Jagidesa Moodley
- Department of Obstetrics and Gynecology and Women's Health and HIV Research Group, Nelson R Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
| | - Thajasvarie Naicker
- Optics and Imaging Centre, Doris Duke Medical Research Institute, University of KwaZulu-Natal, Durban, South Africa
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20
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Yu S, Peng W, Zhang H, Li C, Chen X, Wei M, Yan W. The association between maternal and foetal REN gene polymorphisms and preeclampsia/eclampsia: A hybrid design study. Pregnancy Hypertens 2019; 18:150-155. [PMID: 31622820 DOI: 10.1016/j.preghy.2019.09.011] [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] [Received: 05/20/2019] [Revised: 08/17/2019] [Accepted: 09/22/2019] [Indexed: 10/25/2022]
Abstract
OBJECTIVES Preeclampsia (PE)/eclampsia (E) is an important cause of foetal and maternal morbidity and mortality, and its aetiology is poorly understood. Good evidence suggests that renin (REN) might be associated with PE/E. The risk of PE/E is determined by both maternal and foetal genes, but most previous studies have focused on maternal contributions. This study aimed to explore the association of maternal and foetal REN polymorphisms with PE/E in pregnant Han Chinese women. METHODS A case-parents/mother-control study including 347 PE/E patients with their partners and offspring and 700 control mothers with their offspring was conducted. A log-linear model was used to investigate the association between maternal and foetal REN SNPs and PE/E simultaneously, as well as the interaction of REN SNPs and environmental factors on PE/E. RESULTS The foetal REN rs5707 AC genotype in combination with a pre-pregnancy BMI ≥ 24 kg/m2 was significantly associated with an increased risk of PE/E, with an OR of 2.75 (95%CI = 1.50-5.06). Maternal and foetal rs5707 were significantly associated with an increased risk of PE/E under the recessive model (AA + AC/CC). In haplotype analyses, foetal CCT (in the order of rs2368564, rs5707, rs5705) and TAT genotypes were positively associated with the risk of PE/E. There was no significant association between maternal and foetal REN SNP genotypes and PE/E in the transmission disequilibrium test (TDT) and log-linear model analysis. CONCLUSIONS Findings from this study indicate that foetal rs5707 polymorphisms may play a significant role in PE/E development, especially among overweight or obese pregnant women in China.
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Affiliation(s)
- ShaoJing Yu
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College of Huazhong University of Science & Technology, Wuhan 430030, China; Department of Blood Transfusion, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - WeiJun Peng
- Department of Infection Management, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Heng Zhang
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - ChenYang Li
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College of Huazhong University of Science & Technology, Wuhan 430030, China
| | - XianZhen Chen
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College of Huazhong University of Science & Technology, Wuhan 430030, China
| | - MuHong Wei
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College of Huazhong University of Science & Technology, Wuhan 430030, China
| | - WeiRong Yan
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College of Huazhong University of Science & Technology, Wuhan 430030, China.
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Procopciuc LM, Nemeti G, Buzdugan E, Iancu M, Stamatian F, Caracostea G. Renin-angiotensin system gene variants and risk of early- and late-onset preeclampsia: A single center case-control study. Pregnancy Hypertens 2019; 18:1-8. [PMID: 31442828 DOI: 10.1016/j.preghy.2019.08.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 08/09/2019] [Accepted: 08/15/2019] [Indexed: 01/02/2023]
Abstract
BACKGROUND Changes in the renin-angiotensin-aldosterone system's (RAAS) activity due to different genetic variations could represent risk factors for the onset of preeclampsia. OBJECTIVE To test and quantify the relationships of 8 RAAS gene polymorphisms (angiotensinogen (AGT)-M235T, AGT-T174M, angiotensin converting enzyme (ACE)-I/D, ACE8-A2350G, angiotensin II type 1 receptor (AGTR1)-A1166C, angiotensin II type 2 receptor (AGTR2)-C3123A, renin (REN)-G83A, aldosterone synthase (CYP11B2)-T344C) with susceptibility to early- (EOPE) and late-onset preeclampsia (LOPE). STUDY DESIGN We performed polymerase chain reaction- restriction fragment length polymorphism (PCR-RFLP) analysis in 217 pregnant women, of whom 87 pregnant women with EOPE/LOPE and 130 normal pregnant women. The relationship between the studied RASS gene polymorphisms and EOPE/LOPE was tested by multiple logistic regressions. RESULTS The multivariate logistic regression analysis showed that AGT-M235T (adjusted OR = 4.63), AGT-T174M (adjusted OR = 4.13), REN-G83A (adjusted OR = 3) and CYP11B2-C344T (adjusted OR = 3.13) gene polymorphisms remained independent risk factors for EOPE. Moreover, ACE-I/D (adjusted OR = 4.04), ACE-A2350G (adjusted OR = 3.5), AGTR1-A1166C (adjusted OR = 2.73), and REN-G83A (adjusted OR = 2.67) polymorphisms remained independent risk factors for LOPE. The frequency of overweight was significantly different (p = 0.001) in pregnant women with EOPE, LOPE and the control group (LOPE:16, 29.6% vs. EOPE:12, 36.4% vs. control group:16, 12.3%). Pregnant women with EOPE had babies with a significantly lower mean birth weight (2067.9 ± 887.9) in comparison to women with LOPE (mean ± SD: 2860.1 ± 771.1, p < 0.001) and women with normal pregnancies, respectively (mean ± SD: 3324.9 ± 484.9, p < 0.001). CONCLUSION We confirmed the influence of the renin-angiotensin-aldosterone system through these 8 genetic variations on the onset of preeclampsia.
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Affiliation(s)
- Lucia Maria Procopciuc
- Department of Medical Biochemistry, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Georgiana Nemeti
- Gynecological Clinic 1, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Elena Buzdugan
- Medical Clinic V, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Mihaela Iancu
- Department of Medical Informatics and Biostatistics, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania.
| | - Florin Stamatian
- Gynecological Clinic 1, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Gabriela Caracostea
- Gynecological Clinic 1, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
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Wang Q, Ren D, Li Y, Xu G. Klotho attenuates diabetic nephropathy in db/db mice and ameliorates high glucose-induced injury of human renal glomerular endothelial cells. Cell Cycle 2019; 18:696-707. [PMID: 30784349 DOI: 10.1080/15384101.2019.1580495] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Glomerular endothelial cell injury plays an important role in the development and progression of diabetic nephropathy (DN). The expression and function of klotho in glomerular endothelial cells remain unclear. Thus, this study aimed to investigate the expression and the functional role of klotho in DN progression in mice and in high glucose (HG)-induced cell injury of human renal glomerular endothelial cells (HRGECs) and the underlying mechanism. In this study, HRGECs were cultured with media containing HG to induce endothelial cell injury and db/db mice were used as DN model mice. Klotho was overexpressed or knocked down in HRECs to evaluate its role in HG-induced HRGECs injury. klotho-overexpressing adenovirus (rAAV-klotho) was injected into db/db mice via the tail vein to further validate the protective effect of klotho in DN. Decreased klotho expression was observed in DN patients, DN mice, and HG-exposed HRGECs. Furthermore, klotho overexpression significantly abolished the HG-induced HRGECs injury and activation of Wnt/β-catenin pathway and RAAS. In contrast, klotho knockdown exerted the opposite effects. Moreover, klotho attenuated diabetic nephropathy in db/db mice, which was also associated with inhibition of the Wnt/β-catenin pathway and RAAS. In conclusion, klotho attenuates DN in db/db mice and ameliorates HG-induced injury of HRGECs.
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Affiliation(s)
- Qi Wang
- a Department of Nephrology , the Second Affiliated Hospital of Nanchang University , Nanchang , China
| | - Daijin Ren
- a Department of Nephrology , the Second Affiliated Hospital of Nanchang University , Nanchang , China
| | - Yebei Li
- a Department of Nephrology , the Second Affiliated Hospital of Nanchang University , Nanchang , China
| | - Gaosi Xu
- a Department of Nephrology , the Second Affiliated Hospital of Nanchang University , Nanchang , China
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Zitouni H, Ben Ali Gannoum M, Raguema N, Maleh W, Zouari I, Faleh RE, Guibourdenche J, Almawi WY, Mahjoub T. Contribution of angiotensinogen M235T and T174M gene variants and haplotypes to preeclampsia and its severity in (North African) Tunisians. J Renin Angiotensin Aldosterone Syst 2018; 19:1470320317753924. [PMID: 29366364 PMCID: PMC5843851 DOI: 10.1177/1470320317753924] [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] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Preeclampsia (PE) is a pregnancy-associated hypertensive disorder and a leading cause of maternal and neonatal morbidity and mortality. While its pathogenesis remains ill defined, several candidate genes for PE have been identified, but results remain inconclusive. We investigated the association of the angiotensinogen ( AGT) gene variants M235T and T174M with PE, and we analyzed the contribution of both variants to the severity of PE. METHODS This case-control study enrolled 550 Tunisian pregnant women: 272 with PE, of whom 147 presented with mild, and 125 with severe PE, along with 278 unrelated age- and ethnically matched control women. AGT genotyping was performed by polymerase chain reaction-restriction fragment length polymorphism. RESULTS Significantly higher M235T minor allele frequency (MAF) was associated with increased risk of PE ( p < 0.001). Decreased frequency of heterozygous T174M genotype carriers were found in control women ( p = 0.015), suggesting a protective effect of this genotype (odds ratio (95% confidence interval) = 0.51 (0.29-0.89)). Two-locus haplotype analysis demonstrated MM and TT haplotypes to be negatively and positively associated with PE, respectively. MAF of M253T, but not T174M, was higher in the severe PE group, and carrying M235T or T174M minor allele was associated with increased body mass index ( p < 0.001) among unselected PE women. CONCLUSIONS AGT M235T and T174M variants contribute to an increased risk of developing PE, and for M235T to PE severity.
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Affiliation(s)
- Hedia Zitouni
- 1 Laboratory of Human Genome and Multifactorial Diseases (LR12ES07), College of Pharmacy, University of Monastir, Tunisia.,2 Faculty of Science of Bizerte, University of Carthage, Tunisia.,3 INSERM UMR-S1139 College of Pharmacy, Paris Descartes University, France
| | - Marwa Ben Ali Gannoum
- 1 Laboratory of Human Genome and Multifactorial Diseases (LR12ES07), College of Pharmacy, University of Monastir, Tunisia.,2 Faculty of Science of Bizerte, University of Carthage, Tunisia
| | - Nozha Raguema
- 1 Laboratory of Human Genome and Multifactorial Diseases (LR12ES07), College of Pharmacy, University of Monastir, Tunisia.,2 Faculty of Science of Bizerte, University of Carthage, Tunisia
| | - Wided Maleh
- 4 Centre of Maternity and Neonatology, Tunisia
| | - Ines Zouari
- 4 Centre of Maternity and Neonatology, Tunisia
| | | | - Jean Guibourdenche
- 3 INSERM UMR-S1139 College of Pharmacy, Paris Descartes University, France
| | - Wassim Y Almawi
- 5 Faculty of Science of Tunis, University of Tunis El Manar, Tunisia
| | - Touhami Mahjoub
- 1 Laboratory of Human Genome and Multifactorial Diseases (LR12ES07), College of Pharmacy, University of Monastir, Tunisia
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Li C, Peng W, Zhang H, Yan W. Association of angiotensin receptor 2 gene polymorphisms with pregnancy induced hypertension risk. Hypertens Pregnancy 2018; 37:87-92. [PMID: 29714512 DOI: 10.1080/10641955.2018.1460666] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Chenyang Li
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College of Huazhong University of Science & Technology, Wuhan, China
| | - Weijun Peng
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College of Huazhong University of Science & Technology, Wuhan, China
- Department of Hospital Infection Management, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Heng Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College of Huazhong University of Science & Technology, Wuhan, China
- Department of Neurology, Tongji Hospital, Tongji Medical college, Huazhong University of Science and Technology, Wuhan, China
| | - Weirong Yan
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College of Huazhong University of Science & Technology, Wuhan, China
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Association of gene polymorphisms of aldosterone synthase and angiotensin converting enzyme in pre-eclamptic South African Black women. Pregnancy Hypertens 2017. [PMID: 29523271 DOI: 10.1016/j.preghy.2017.12.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
INTRODUCTION The exact cause of preeclampsia (PE) remains elusive. Recently, many researchers have focused on the role of genetic variations in pathogenesis of PE. The renin-angiotensin-aldosterone system is affected in the pathogenesis of PE. OBJECTIVES To determine association of gene polymorphisms of aldosterone synthase (CYP11B2) and angiotensin converting enzyme (ACE) in PE and normotensive South African Black women. METHODS A group of 603 South African Black pregnant women, 246 normotensive and 357 with PE, was recruited. Purified DNA was extracted from venous blood. The distribution and frequencies of gene polymorphisms of CYP11B2 (C-344T) and ACE deletion/insertion (D/I) were determined by real time polymerase chain reaction. RESULTS As the main outcome measure, the risk of C allele for PE was 1.28 (95%CI: 0.94-1.74; p = .1) for all allele comparisons. Thus no significant association with development of PE was observed for the CYP11B2 variants. However, post analysis of the distribution of TT genotypes of CYP11B2 were higher in the HIV uninfected normotensive than in the HIV uninfected PE group (OR: 0.47, 95%CI: 0.27-0.79, p = .0027). The C alleles of late-onset PE and HIV uninfected PE were higher than all normotensive and HIV uninfected normotensive (OR: 1.47, 95%CI: 1.02-2.10, p = .03 and OR: 1.77, 95%CI: 1.13-2.81, p = .0094 respectively). The CT genotype of CYP11B2 was statistically significant between normotensive and PE in HIV uninfected groups (OR: 2.24, 95%CI: 1.28-3.98, p = .0026). There was no significant difference in frequencies of D/I for ACE gene in PE.
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Madar-Shapiro L, Karady I, Trahtenherts A, Syngelaki A, Akolekar R, Poon L, Cohen R, Sharabi-Nov A, Huppertz B, Sammar M, Juhasz K, Than NG, Papp Z, Romero R, Nicolaides KH, Meiri H. Predicting the Risk to Develop Preeclampsia in the First Trimester Combining Promoter Variant -98A/C of LGALS13 (Placental Protein 13), Black Ethnicity, Previous Preeclampsia, Obesity, and Maternal Age. Fetal Diagn Ther 2017; 43:250-265. [PMID: 28728156 PMCID: PMC5882584 DOI: 10.1159/000477933] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Accepted: 05/30/2017] [Indexed: 01/10/2023]
Abstract
BACKGROUND LGALS13 (placental protein 13 [PP13]) promoter DNA polymorphisms was evaluated in predicting preeclampsia (PE), given PP13's effects on hypotension, angiogenesis, and immune tolerance. METHODS First-trimester plasma samples (49 term and 18 intermediate) of PE cases matched with 196 controls were collected from King's College Hospital, London, repository. Cell-free DNA was extracted and the LGALS13 exons were sequenced after PCR amplification. Expression of LGALS13 promoter reporter constructs was determined in BeWo trophoblast-like cells with luciferase assays. Adjusted odds ratio (OR) was calculated for the A/A genotype combined with maternal risk factors. RESULTS The A/A, A/C, and C/C genotypes in the -98 promoter position were in Hardy-Weinberg equilibrium in the control but not in the PE group (p < 0.036). The dominant A/A genotype had higher frequency in the PE group (p < 0.001). The A/C and C/C genotypes protected from PE (p < 0.032). The ORs to develop term and all PE, calculated for the A/A genotype, previous PE, body mass index (BMI) >35, black ethnicity, and maternal age >40 were 15.6 and 11.0, respectively (p < 0.001). In luciferase assays, the "-98A" promoter variant had lower expression than the "-98C" variant in non-differentiated (-13%, p = 0.04) and differentiated (-26%, p < 0.001) BeWo cells. Forskolin-induced differentiation led to a larger expression increase in the "-98C" variant than in the "-98A" variant (4.55-fold vs. 3.85-fold, p < 0.001). CONCLUSION Lower LGALS13 (PP13) expression with the "A" nucleotide in the -98 promoter region position (compared to "C") and high OR calculated for the A/A genotype in the -98A/C promoter region position, history of previous PE, BMI >35, advanced maternal age >40, and black ethnicity could serve to aid in PE prediction in the first trimester.
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Amaral TAS, Ognibene DT, Carvalho LCRM, Rocha APM, Costa CA, Moura RS, Resende AC. Differential responses of mesenteric arterial bed to vasoactive substances in L-NAME-induced preeclampsia: Role of oxidative stress and endothelial dysfunction. Clin Exp Hypertens 2017; 40:126-135. [PMID: 28726518 DOI: 10.1080/10641963.2017.1339073] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
To investigate the systemic and placental oxidant status as well as vascular function in experimental preeclampsia (PE) induced by nitro-L-arginine methyl ester (L-NAME). Fetal parameters and maternal blood pressure, proteinuria, mesenteric arterial bed (MAB) reactivity, and systemic and placental oxidative stress were compared between four groups: pregnant rats receiving L-NAME (60 mg/kg/day, orally) (P + L-NAME) or vehicle (P) from days 13 to 20 of pregnancy and nonpregnant rats receiving L-NAME (NP + L-NAME) or vehicle (NP) during 7 days. L-NAME administration during pregnancy induced some hallmarks of PE, such as hypertension and proteinuria. The P + L-NAME group presented lower weight gain and placental mass as well as reduced number and weight of live fetuses than P group. The vasodilator effect induced by acetylcholine (ACh) and angiotensin II (Ang II) was lower in the perfused MAB from NP + L-NAME and P + L-NAME than in control groups. Otherwise, the nitroglycerine-induced vasodilation and the phenylephrine- and Ang II-induced vasoconstriction were higher in MAB from NP + L-NAME and P + L-NAME groups than in the respective controls. Systemic and placental oxidative damage, assessed by malondialdehyde and carbonyl levels, was increased and activities of the antioxidant enzymes superoxide dismutase and glutathione peroxidase were reduced in P + L-NAME and NP + L-NAME groups compared to controls. The present data suggest that the oxidative stress and reduced bioavailability of nitric oxide may contribute to attenuation of vasodilator responses to ACh and Ang II, and hyperreactivity to Ang II in the mesentery of preeclamptic rat, which may contribute to the increased peripheral vascular resistance and BP, as well as intrauterine growth restriction in L-NAME-induced PE.
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Affiliation(s)
- Taline A S Amaral
- a Department of Pharmacology , Institute of Biology, State University of Rio de Janeiro , Rio de Janeiro , Brazil
| | - Dayane T Ognibene
- a Department of Pharmacology , Institute of Biology, State University of Rio de Janeiro , Rio de Janeiro , Brazil
| | - Lenize C R M Carvalho
- a Department of Pharmacology , Institute of Biology, State University of Rio de Janeiro , Rio de Janeiro , Brazil
| | - Ana Paula M Rocha
- b Department of Physiological Sciences , Biomedical Institute, Federal University of the State of Rio de Janeiro , Rio de Janeiro , Brazil
| | - Cristiane A Costa
- a Department of Pharmacology , Institute of Biology, State University of Rio de Janeiro , Rio de Janeiro , Brazil
| | - Roberto S Moura
- a Department of Pharmacology , Institute of Biology, State University of Rio de Janeiro , Rio de Janeiro , Brazil
| | - Angela C Resende
- a Department of Pharmacology , Institute of Biology, State University of Rio de Janeiro , Rio de Janeiro , Brazil
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Li X, Tan H, Zhou S, Hu S, Zhang T, Li Y, Dou Q, Lai Z, Chen F. Renin-angiotensin-aldosterone system gene polymorphisms in gestational hypertension and preeclampsia: A case-control gene-association study. Sci Rep 2016; 6:38030. [PMID: 27910864 PMCID: PMC5133626 DOI: 10.1038/srep38030] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Accepted: 11/03/2016] [Indexed: 12/12/2022] Open
Abstract
Pregnancy-induced hypertension (PIH, including preeclampsia [PE] and gestational hypertension [GH]) and cardiovascular diseases (CVDs) have some metabolic changes and risk factors in common. Many studies have reported associations between single nucleotide polymorphisms (SNPs) of renin-angiotensin-aldosterone system (RAAS) genes and CVDs (particularly hypertension), and their findings have provided candidate SNPs for research on genetic correlates of PIH. We explored the association between hypertension-related RAAS SNPs and PIH in a Chinese population. A total of 130 cases with PE, 67 cases with GH, and 316 controls were recruited. Six candidate SNPs of the RAAS system were selected. Multiple logistic regression analysis adjusting for maternal age, fetal sex, and gestational diabetes mellitus showed significant associations between angiotensinogen (AGT) rs3789678 T/C and GH (p = 0.0088) and between angiotensin II receptor type 1 (AGTR1) rs275645 G/A and PE (p = 0.0082). The study population was further stratified by maternal age (<30 and ≥30 years), and stratified and crossover analyses were conducted to determine genetic associations in different age groups. Our findings suggest that the impacts of different SNPs might be affected by maternal age; however, the effect of this potential gene-age interaction on PIH needs further exploration.
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Affiliation(s)
- Xun Li
- Xiangya School of Public Health, Central South University, 90 Xiangya Road, Changsha, Hunan, China
| | - Hongzhuan Tan
- Xiangya School of Public Health, Central South University, 90 Xiangya Road, Changsha, Hunan, China
| | - Shujin Zhou
- Liuyang Municipal Hospital of Maternal and Child Health, 53 Beizheng North Road, Liuyang, Hunan, China
| | - Shimin Hu
- Xiangya School of Public Health, Central South University, 90 Xiangya Road, Changsha, Hunan, China
| | - Tianyi Zhang
- Xiangya School of Public Health, Central South University, 90 Xiangya Road, Changsha, Hunan, China
| | - Yangfen Li
- Xiangya School of Public Health, Central South University, 90 Xiangya Road, Changsha, Hunan, China
| | - Qianru Dou
- Xiangya School of Public Health, Central South University, 90 Xiangya Road, Changsha, Hunan, China
| | - Zhiwei Lai
- Xiangya School of Public Health, Central South University, 90 Xiangya Road, Changsha, Hunan, China
| | - Fenglei Chen
- Xiangya School of Public Health, Central South University, 90 Xiangya Road, Changsha, Hunan, China
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Liu D, Chen Y, Zhang P, Zhong J, Jin L, Zhang C, Lin S, Wu S, Yu H. Association between circulating levels of ACE2-Ang-(1-7)-MAS axis and ACE2 gene polymorphisms in hypertensive patients. Medicine (Baltimore) 2016; 95:e3876. [PMID: 27310975 PMCID: PMC4998461 DOI: 10.1097/md.0000000000003876] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
The angiotensin-converting enzyme 2-angiotensin-(1-7)-MAS axis (ACE2-Ang-[1-7]-MAS axis) plays an important role in the control of blood pressure. Some previous studies indicated that the genetic variants of ACE2 may have a potential to influence this axis. Therefore, the present study aimed at examining the association of ACE2 polymorphisms with circulating ACE2 and Ang-(1-7) levels in patients with essential hypertension.Hypertensive patients who met the inclusion criteria were enrolled in the present study. Three Tag single-nucleotide polymorphisms (rs2106809, rs4646155, and rs879922) in ACE2 gene were genotyped for all participants. Circulating ACE2 and Ang-(1-7) levels were detected by enzyme-linked immunosorbent assay.There were 96 (53.0%) females and 85 (47.0%) males participating in the present study. The circulating Ang-(1-7) levels were significantly greater in female patients carrying the rs2106809 CC or CT genotype compared with those carrying the TT genotype (1321.9 ± 837.4 or 1077.5 ± 804.4 pg/mL vs 751.9 ± 612.4 pg/mL, respectively; P = 0.029, analysis of variance), whereas the circulating Ang-(1-7) levels were comparable among genotypes in male patients. In addition, there was no significant difference in the circulating ACE2 levels among rs2106809 CC, CT, and TT genotype groups in both female and male patients. The circulating ACE2 and Ang-(1-7) levels were related to neither rs4646155 nor rs879922 in female or male patients.In conclusion, the rs2106809 polymorphism of the ACE2 gene may be a determinant of the circulating Ang-(1-7) level in female patients with hypertension, suggesting a genetic association between circulating Ang-(1-7) levels and ACE2 gene polymorphisms in patients with hypertension.
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Affiliation(s)
- Dan Liu
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Zhongshan Road No. 2, Yuexiu District, Guangzhou, Guangdong, P.R. China
| | - Yongyue Chen
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Zhongshan Road No. 2, Yuexiu District, Guangzhou, Guangdong, P.R. China
| | - Ping Zhang
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Zhongshan Road No. 2, Yuexiu District, Guangzhou, Guangdong, P.R. China
| | - Jiuchang Zhong
- State Key Laboratory of Medical Genomics & Shanghai Institute of Hypertension, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Lijun Jin
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Zhongshan Road No. 2, Yuexiu District, Guangzhou, Guangdong, P.R. China
| | - Caojin Zhang
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Zhongshan Road No. 2, Yuexiu District, Guangzhou, Guangdong, P.R. China
| | - Shuguang Lin
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Zhongshan Road No. 2, Yuexiu District, Guangzhou, Guangdong, P.R. China
| | - Shulin Wu
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Zhongshan Road No. 2, Yuexiu District, Guangzhou, Guangdong, P.R. China
| | - Huimin Yu
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Zhongshan Road No. 2, Yuexiu District, Guangzhou, Guangdong, P.R. China
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Angiotensin II type 1 receptor autoantibody as a novel regulator of aldosterone independent of preeclampsia. J Hypertens 2015; 33:1046-56. [DOI: 10.1097/hjh.0000000000000521] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Okada Y, Best SA, Jarvis SS, Shibata S, Parker RS, Casey BM, Levine BD, Fu Q. Asian women have attenuated sympathetic activation but enhanced renal-adrenal responses during pregnancy compared to Caucasian women. J Physiol 2015; 593:1159-68. [PMID: 25545472 DOI: 10.1113/jphysiol.2014.282277] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Accepted: 12/24/2014] [Indexed: 12/15/2022] Open
Abstract
Asians have a lower prevalence of hypertensive disorders of pregnancy than Caucasians. Since sympathetic overactivity and dysregulation of the renal-adrenal system (e.g. low aldosterone levels) have been found in preeclamptic women, we hypothesized that Asians have lower muscle sympathetic nerve activity (MSNA) and greater aldosterone concentrations during normal pregnancy than Caucasians. In a prospective study, blood pressure (BP), heart rate (HR), and MSNA were measured during supine and upright tilt (30 deg and 60 deg for 5 min each) in 9 Asians (32 ± 1 years (mean ± SEM)) and 12 Caucasians (29 ± 1 years) during pre-, early (≤8 weeks of gestation) and late (32-36 weeks) pregnancy, and post-partum (6-10 weeks after delivery). Supine MSNA increased with pregnancy in both groups (P < 0.001); it was significantly lower in Asians than Caucasians (14 ± 3 vs. 23 ± 3 bursts min(-1) and 16 ± 5 vs. 30 ± 3 bursts min(-1) in early and late pregnancy, respectively; P = 0.023). BP decreased during early pregnancy (P < 0.001), but was restored during late pregnancy. HR increased during pregnancy (P < 0.001) with no racial difference (P = 0.758). MSNA increased during tilting and it was markedly lower in Asians than Caucasians in late pregnancy (31 ± 6 vs. 49 ± 3 bursts min(-1) at 60 deg tilt; P = 0.003). Upright BP was lower in Asians, even in pre-pregnancy (P = 0.006), and this racial difference persisted during pregnancy. Direct renin and aldosterone increased during pregnancy (both P < 0.001); these hormones were greater in Asians (P = 0.086 and P = 0.014). Thus, Asians have less sympathetic activation but more upregulated renal-adrenal responses than Caucasians during pregnancy. These results may explain, at least in part, why Asian women are at low risk of hypertensive disorders in pregnancy.
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Affiliation(s)
- Yoshiyuki Okada
- Institute for Exercise and Environmental Medicine, Texas Health Presbyterian Hospital Dallas, Dallas, TX, USA; University of Texas Southwestern Medical Center, Dallas, TX, USA
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Krauspenhar B, Sontag F, Ronchi FA, Casarini DE, Poli-de-Figueiredo CE, Pinheiro da Costa BE. Angiotensin Converting Enzyme 90 kDa isoform: Biomarker for diagnosis of preeclampsia? Med Hypotheses 2014; 83:526-9. [PMID: 25257705 DOI: 10.1016/j.mehy.2014.09.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Accepted: 09/10/2014] [Indexed: 10/24/2022]
Abstract
Preeclampsia (PE), one of the leading gestational hypertensive diseases, is characterized by increased blood pressure (⩾140/90mmHg) and pathological proteinuria after 20weeks gestation. It is a complex, multifactorial syndrome with an unestablished etiology and cure. The search continues for a biomarker that could assist in the early prediction or diagnosis of PE, reducing the rate of maternal and fetal mortality. Based on the findings of Casarini et al. that suggest the 90kDa isoform of the Angiotensin Converting Enzyme (ACE) as a possible marker of hypertension, we hypothesized that this isoform may be present in pregnant women with PE, since they present a transient and spontaneous model of systemic arterial hypertension in pregnancy. We believe, therefore, that pregnant women with pure PE (PPE) express the ACE 90kDa isoform in urine, as well as having elevated isoform enzymatic activity, during pregnancy only. Postpartum, with the normalization of blood pressure, the protein isoform would no longer be expressed. Pregnant women with superimposed preeclampsia (SPE) would present the ACE 90kDa isoform both during and after the gestation period, and its enzymatic activity would remain high as they are chronically hypertensive. It is expected that normotensive pregnant women do not present this isoform in their urine as elevated blood pressure levels do not occur. Both normotensive and PPE affected pregnant women with a family history of hypertension, will possibly express the ACE 90kDa isoform before pregnancy and may become hypertensive, only after some years, through the influence of environmental factors and/or other diseases. If our hypothesis is confirmed, it will allow differentiation of PPE and SPE sooner than 12weeks postpartum, which is currently the estimated period for confirmation of the specific diagnosis. Furthermore, it could be an early biomarker for predicting the disease, enabling the physician to choose the best clinical management. In addition, it would minimize the use of other methods as the biological sample for obtaining the marker is urine, a practical and effective test with good reproducibility. Finally, test results would enable a greater understanding of the mechanisms involved in gestational hypertension.
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Affiliation(s)
- Bruna Krauspenhar
- Graduate Program in Medicine and Health Sciences (Nephrology), School of Medicine, Institute of Biomedical Research, São Lucas Hospital, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil.
| | - Fernando Sontag
- Graduate Program in Medicine and Health Sciences (Nephrology), School of Medicine, Institute of Biomedical Research, São Lucas Hospital, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Fernanda A Ronchi
- Nephrology Division, Department of Medicine, Escola Paulista de Medicina, Federal University of São Paulo, São Paulo, SP, Brazil
| | - Dulce E Casarini
- Nephrology Division, Department of Medicine, Escola Paulista de Medicina, Federal University of São Paulo, São Paulo, SP, Brazil
| | - Carlos Eduardo Poli-de-Figueiredo
- Graduate Program in Medicine and Health Sciences (Nephrology), School of Medicine, Institute of Biomedical Research, São Lucas Hospital, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Bartira E Pinheiro da Costa
- Graduate Program in Medicine and Health Sciences (Nephrology), School of Medicine, Institute of Biomedical Research, São Lucas Hospital, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil
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Chedraui P, Salazar-Pousada D, Villao A, Escobar GS, Ramirez C, Hidalgo L, Pérez-López FR, Genazzani A, Simoncini T. Polymorphisms of the methylenetetrahydrofolate reductase gene (C677T and A1298C) in nulliparous women complicated with preeclampsia. Gynecol Endocrinol 2014; 30:392-6. [PMID: 24611473 DOI: 10.3109/09513590.2014.895807] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
OBJECTIVE To determine the prevalence of C677T and A1298C Single-nucleotide polymorphisms (SNPs) of the MTHFR gene in nulliparous women complicated with preeclampsia (PE). METHODS One hundred fifty gestations complicated with PE and their corresponding controls without the disease were recruited for the genotyping of C677T and A1298C polymorphisms of the MTHFR gene using restriction fragment length polymorphism polymerase chain reaction. Secondarily, homocysteine (HCy) plasma levels were measured in preeclamptic women displaying the CC genotype of the A1298C polymorphism (homozygous) and compared to HCy levels determined among controls with the normal AA genotype for the A1298C variant. RESULTS Only the mutant CC genotype of the A1298C polymorphism was associated to higher risk of presenting PE, as frequency of this genotype was significantly higher among cases than controls (15.3% versus 0.7%, p < 0.05). All PE women with a neck circumference ≥32 cm presented the mutant CC A1298C polymorphism as compared to none among preeclamptics with a lower neck circumference (p = 0.0001). Women with the mutant CC A1298C SNP displayed higher plasma HCy levels as compared to controls with normal AA A1298C genotype (8.4 ± 2.6 versus 7.5 ± 2.7 mmoL/L p = 0.04). CONCLUSION Prevalence of the CC mutant genotype of the A1298C polymorphism was higher among PE women. This mutation among PE women was related to increased neck circumference and higher HCy levels. Future research should aim at linking these gestational findings with obesity and cardiovascular risk.
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Affiliation(s)
- Peter Chedraui
- Enrique C. Sotomayor Obstetrics and Gynecology Hospital , Guayaquil , Ecuador
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