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Jalalian EJ, Taravati A, Seyedalipour B. GSTP1-A313G genetic polymorphism and the risk of preeclampsia in pregnant women: A study in the northern population of Iran. Pregnancy Hypertens 2024; 37:101144. [PMID: 39111192 DOI: 10.1016/j.preghy.2024.101144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 06/19/2024] [Accepted: 08/03/2024] [Indexed: 09/15/2024]
Abstract
Preeclampsia or high blood pressure in pregnancy is one of the special disorders during pregnancy. It seems that oxidative stress plays an important role in the occurrence of this disease. The purpose of this study is to investigate the relationship between the A313G polymorphism in exon five of the glutathione S-transferase gene (GSTP1) and the risk of preeclampsia in a case-control study. In this study, blood samples were collected from 70 healthy pregnant women and 70 women with preeclampsia. After genomic DNA extraction, the PCR-RFLP method was performed to check the genotype in GSTP1-A313G and the genotypic frequencies of AA, AG, and GG were determined in all samples. Also, using bioinformatics software, the effect of the above polymorphism on the protein structure was investigated. Statistical analysis for A313G polymorphism showed that AG (OR: 1.1684, 95 % CI: 0.5877-2.3228, p = 0.657) and GG (OR: 1.3793, 95 % CI: 0.3376-5.6359, p = 0.654) genotypes were not associated with risk of preeclampsia in the population of northern Iran. However, bioinformatic analyzes have shown that this polymorphism does have a destructive effect on the protein structure. However, more studies with larger sample sizes are needed to draw firm conclusions.
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Affiliation(s)
- Ehsan Joz Jalalian
- Department of Molecular and Cell Biology, Faculty of Basic Sciences, Islamic Azad University Damghan Branch, Iran
| | - Ali Taravati
- Department of Molecular and Cell Biology, Faculty of Basic Science, University of Mazandaran, Babolsar, Iran
| | - Bagher Seyedalipour
- Department of Molecular and Cell Biology, Faculty of Basic Science, University of Mazandaran, Babolsar, Iran.
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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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Tesfa E, Munshea A, Nibret E, Tebeje Gizaw S. Association of endothelial nitric oxide synthase gene variants in pre-eclampsia: an updated systematic review and meta-analysis. J Matern Fetal Neonatal Med 2023; 36:2290918. [PMID: 38086755 DOI: 10.1080/14767058.2023.2290918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 11/29/2023] [Indexed: 12/18/2023]
Abstract
INTRODUCTION Three common endothelial nitric oxide synthase (eNOS) gene variants are existed such as; G-894T, T-786C, and variable number tandem repeats in intron-4 (VNTR intron-4) which has been proposed to be linked with PE. However, there is still debate regarding the findings. To address this, a review was conducted to assess the potential association of eNOS gene variants at these positions with the risk of PE. METHODS PubMed, Scopus, Science Direct, Hinari, and African Journal Online databases and Google Scholar search engines were utilized to search studies published in English-language until 30 January 2023. The Joanna Briggs Institute Meta-Analysis instrument was used for data extraction process and the Newcastle-Ottawa Scale was used to appraise the quality of the included studies. Meta-regression analysis was conducted using Stata 14 statistical software. The pooled odds ratios (ORs) of fixed and random effect models were utilized to evaluate the association of eNOS gene polymorphism with the risk of PE at 95% CI. Publication bias was assessed using Egger's test and a funnel plot. RESULTS The study included 47 observational studies involving 13,795 pregnant women (6216 cases and 7579 controls). Pregnant women carrying TT and CC genotypes of eNOS gene at 894 and 786 positions were found to have a greater probability of developing PE as compared to GG and TT genotypes (OR = 1.54 vs. 1.43 and CI: 1.12 - 2.14 vs.1.02 - 2.00 at 95% CI), respectively. However, a significant association was not observed between aa genotype of eNOS gene in VNTR intron-4 region and risk of PE as compared to bb genotype (OR =1.26, 95% CI: 0.83 - 1.89). The allelic model of eNOS gene at all positions showed nonsignificant association with the risk of PE. CONCLUSIONS The women having eNOS gene variants at 894 and 786 positions showed a significant association with the risk of PE. Yet, the women having eNOS gene variant at intron-4 region showed nonsignificant association with the risk of PE. Thus, this study suggests that eNOS gene variants may play a role in the development of PE, but large-scale studies are required to inaugurate concrete evidence on the roles of eNOS gene variants in PE pathogenesis.
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Affiliation(s)
- Endalamaw Tesfa
- Department of Biochemistry, College of Medicine and Health Sciences, Bahir Dar University, Bahir Dar, Ethiopia
- Health Biotechnology Division, Institute of Biotechnology, Bahir Dar University, Bahir Dar, Ethiopia
| | - Abaineh Munshea
- Health Biotechnology Division, Institute of Biotechnology, Bahir Dar University, Bahir Dar, Ethiopia
- Department of Biology, College of Science, Bahir Dar University, Bahir Dar, Ethiopia
| | - Endalkachew Nibret
- Health Biotechnology Division, Institute of Biotechnology, Bahir Dar University, Bahir Dar, Ethiopia
- Department of Biology, College of Science, Bahir Dar University, Bahir Dar, Ethiopia
| | - Solomon Tebeje Gizaw
- Department of Biochemistry, College of Health Science, Addis Ababa University, Addis Ababa, Ethiopia
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Karimian M, Yaqubi S, Karimian Z. The eNOS-G894T genetic polymorphism and risk of preeclampsia: A case-control study, an updated meta-analysis, and a bioinformatic assay. Cytokine 2023; 169:156283. [PMID: 37356259 DOI: 10.1016/j.cyto.2023.156283] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 06/18/2023] [Indexed: 06/27/2023]
Abstract
OBJECTIVES Preeclampsia (PE) is a leading cause of maternal death worldwide and involves vascular endothelial dysfunction. The aim of this study was to investigate the association of the G894T polymorphism in the endothelial nitric oxide synthase (eNOS) gene and the risk of preeclampsia in a case-control design in an Iranian population, which was followed by a meta-analysis and an in silico approach. METHODS In the case-control study, 300 people including 135 pregnant women with preeclampsia and 165 healthy pregnant women were included. The genotype of G894T polymorphism was determined by the PCR-RFLP method. We searched authoritative scientific databases to find eligible studies for meta-analysis. The odds ratio with a 95% confidence interval was estimated to find the strength of the association of the mentioned polymorphism with the risk of preeclampsia. In addition, the effect of G894T transversion on eNOS gene function was evaluated by some bioinformatics tools. RESULTS Our case-control data showed that the G894T polymorphism is associated with an increased risk of preeclampsia. In the meta-analysis, 33 eligible studies were included, and the results showed that the G894T polymorphism is associated with an increased risk of preeclampsia in the overall analysis and some stratified analyses. In addition, the structural analysis showed that the G894T variant can affect the splicing process as well as the protein stability. CONCLUSIONS Based on the results, the aforementioned polymorphism may be a risk factor for preeclampsia and could be considered a potential molecular biomarker for screening susceptible individuals.
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Affiliation(s)
- Mohammad Karimian
- Department of Molecular and Cell Biology, Faculty of Basic Sciences, University of Mazandaran, Babolsar, Iran.
| | - Sahar Yaqubi
- Department of Molecular and Cell Biology, Faculty of Basic Sciences, University of Mazandaran, Babolsar, Iran
| | - Zahra Karimian
- Department of Midwifery, Faculty of Nursing and Midwifery, Kashan University of Medical Sciences, Kashan, Iran
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Macías-Salas A, Sosa-Macías M, Barragán-Zúñiga LJ, Blanco-Castañeda R, Damiano A, Garcia-Robles R, Ayala-Ramírez P, Bueno-Sánchez J, Giachini FR, Escudero C, Galaviz-Hernández C. Preeclampsia association of placental nucleotide variations in eNOS, VEGFA, and FLT-1 genes in Latin American pregnant women. Placenta 2023; 135:1-6. [PMID: 36878143 DOI: 10.1016/j.placenta.2023.02.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 02/06/2023] [Accepted: 02/24/2023] [Indexed: 03/05/2023]
Abstract
INTRODUCTION Preeclampsia is a leading cause of maternal and fetal morbidity in low- and middle-income countries, including those in Latin America. Placental vascular alterations are crucial in the pathophysiology of preeclampsia and few studies have evaluated nucleotide variations on genes associated with vascular regulation in the human placenta. This study aimed to evaluate whether placental nucleotide variations on eNOS, VEGFA, and FLT-1 genes are more frequently associated with preeclampsia in the Latin American population. METHODS This case-control study included placental tissue from 88 controls and 82 cases that were genotyped through Taqman probes for eNOS, VEGFA, and FLT-1 genes. The intergroup comparisons were analyzed with the Mann-Whitney U test. Genotype and allele frequencies were compared by the X2 test. The association between the nucleotide variants with preeclampsia was evaluated through logistic regression analysis. RESULTS A significant association was observed for VEGFA SNV rs2010963 (OR 1.95; CI 95% 1.13-3.37), after adjusting for population substructure. The allele combination T, G, G, C, C, C (rs2070744, rs1799983, rs2010963, rs3025039, rs699947 and rs4769613 respectively), showed a negative association with preeclampsia (OR 0.08; CI 95% 0.01-0.93). RESULTS DISCUSSION Placental SNV rs2010963 in the VEGFA gene was a risk factor for preeclampsia, while the allele combination T, G, G, C, C, C may represent potential protective factors for preeclampsia within Latin American women.
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Affiliation(s)
- Alejo Macías-Salas
- Pharmacogenomics Academia, Instituto Politécnico Nacional-CIIDIR Durango, Mexico
| | - Martha Sosa-Macías
- Pharmacogenomics Academia, Instituto Politécnico Nacional-CIIDIR Durango, Mexico; Red Iberoamericana de Alteraciones Vasculares en Transtornos del Embarazo (RIVATREM), Chillan, Chile
| | | | | | - Alicia Damiano
- Red Iberoamericana de Alteraciones Vasculares en Transtornos del Embarazo (RIVATREM), Chillan, Chile; Laboratorio de Biología de la Reproducción, IFIBIO Houssay-UBA- CONICET, Buenos Aires, Argentina; Cátedra de Biología Celular y Molecular, Departamento de Ciencias Biológicas, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Reggie Garcia-Robles
- Red Iberoamericana de Alteraciones Vasculares en Transtornos del Embarazo (RIVATREM), Chillan, Chile; Department of Physiological Sciences, School of Medicine, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Paola Ayala-Ramírez
- Red Iberoamericana de Alteraciones Vasculares en Transtornos del Embarazo (RIVATREM), Chillan, Chile; Human Genetics Institute, School of Medicine, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Julio Bueno-Sánchez
- Red Iberoamericana de Alteraciones Vasculares en Transtornos del Embarazo (RIVATREM), Chillan, Chile; Grupo Reproducción, Department of Obstetrics and Gynecology, Department of Physiology and biochemisty, Universidad de Antioquia, Medellín, Colombia
| | - Fernanda Regina Giachini
- Red Iberoamericana de Alteraciones Vasculares en Transtornos del Embarazo (RIVATREM), Chillan, Chile; Institute of Biological Sciences and Health, Federal University of Mato Grosso, Barra do Garças, Brazil
| | - Carlos Escudero
- Red Iberoamericana de Alteraciones Vasculares en Transtornos del Embarazo (RIVATREM), Chillan, Chile; Vascular Physiology Laboratory, Department of Basic Sciences, Universidad del Bío-Bío, Chillán, Chile; Group of Research and Innovation in Vascular Health (GRIVAS Health), Chillan, Chile.
| | - Carlos Galaviz-Hernández
- Pharmacogenomics Academia, Instituto Politécnico Nacional-CIIDIR Durango, Mexico; Red Iberoamericana de Alteraciones Vasculares en Transtornos del Embarazo (RIVATREM), Chillan, Chile.
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Associations between AGT, MTHFR, and VEGF gene polymorphisms and preeclampsia in the Chinese population. Placenta 2022; 118:38-45. [PMID: 35030476 DOI: 10.1016/j.placenta.2022.01.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 12/29/2021] [Accepted: 01/05/2022] [Indexed: 12/15/2022]
Abstract
INTRODUCTION Preeclampsia (PE) is a pregnancy-specific multisystemic syndrome. This study aimed to investigate the associations between angiotensinogen (AGT), methylenetetrahydrofolate reductase (MTHFR), vascular endothelial growth factor (VEGF) polymorphisms, and PE in the Han Chinese population. METHODS We genotyped 26 single-nucleotide polymorphisms (SNP) in three genes by using QuantStudio™ 12 K Flex Real-Time PCR technology in 168 patients with PE and 204 healthy pregnant control subjects. The associations of tested polymorphisms with PE were analyzed at allele, genotype, and haplotype levels. RESULTS A common coding variant in MTHFR, rs2274976, was significantly associated with increased risk of PE in both allelic and genotype models (P < 0.05). The heterozygous genotypes of rs699 (G/A vs G/G) in AGT gene and rs3025035 (C/T vs C/C) in VEGF gene showed weak associations with increased PE risk, whereas the mutant homozygous genotype of rs3024987 (TT vs C/C) and the heterozygous genotype of rs3025039 (C/T vs C/C) in VEGF gene displayed weak associations with decreased PE risk (P < 0.05). DISCUSSION However, these weak associations lost significance after multiple testing correction. The results indicated that rs2274976 in MTHFR gene may contribute to the increased risk of PE in pregnant women. AGT and VEGF gene polymorphisms may not play a significant role in PE development.
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Abbasi H, Dastgheib SA, Hadadan A, Karimi-Zarchi M, Javaheri A, Meibodi B, Zanbagh L, Tabatabaei RS, Neamatzadeh H. Association of Endothelial Nitric Oxide Synthase 894G > T Polymorphism with Preeclampsia Risk: A Systematic Review and Meta-Analysis based on 35 Studies. Fetal Pediatr Pathol 2021; 40:455-470. [PMID: 31920131 DOI: 10.1080/15513815.2019.1710880] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Several case-control studies have been performed to investigate the association between 894 G > T polymorphism in endothelial nitric oxide synthase (eNOS) gene and susceptibility to preeclampsia. However, the results were inconsistent and inconclusive. Therefore, we conducted this meta-analysis to investigate the association. Methods: All studies published up to September 30, 2019 were identified by searching electronic databases such as PubMed, EMBASE, CNKI, and WANFANG. Results: A total of 35 case- control studies with 4,254 cases and 5,801 controls were selected. There was a significant association between the eNOS 894 G > T and preeclampsia risk. When stratified by ethnicity, an increased risk of preeclampsia was found in Caucasian and Mixed populations, but not in Asians or Africans. Conclusion: Based on our meta-analysis, the eNOS 894 G > T polymorphism was associated with an increased risk of preeclampsia, especially among Caucasian and Mixed populations.
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Affiliation(s)
- Hajar Abbasi
- Department of Obstetrics and Gynecology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyed Alireza Dastgheib
- Department of Medical Genetics, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Amaneh Hadadan
- Department of Obstetrics and Gynecology, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Obstetrics and Gynecology, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mojgan Karimi-Zarchi
- Department of Obstetrics and Gynecology, Iran University of Medical Sciences, Tehran, Iran.,Clinical Research Development Center of Shahid Sadoughi Hospital, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Atiyeh Javaheri
- Department of Obstetrics and Gynecology, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Bahare Meibodi
- Department of Obstetrics and Gynecology, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Leila Zanbagh
- Department of Obstetrics and Gynecology, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.,Department of Obstetrics and Gynecology, Yazd Branch, Islamic Azad University, Yazd, Iran
| | - Razieh Sadat Tabatabaei
- Department of Obstetrics and Gynecology, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Hossein Neamatzadeh
- Mother and Newborn Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.,Department of Medical Genetics, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
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Mahmood S, Younas H, Younus A, Nathenial S. A narrative review on the role of folate-mediated one-carbon metabolism and its associated gene polymorphisms in posing risk to preeclampsia. Clin Exp Hypertens 2021; 43:487-504. [PMID: 34053381 DOI: 10.1080/10641963.2021.1916942] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Preeclampsia (PE) presents a major obstetrical problem for mother and fetus which is characterized by the onset of hypertension and proteinuria in formerly normotensive women. Altered folate-mediated one-carbon metabolism is one of the factors for PE development either due to nutritional insufficiencies such as folate deficiency or polymorphisms in genes that code for the key enzymes of the cycle. Commonly, there are four genes in the cycle whose polymorphisms have been described in relation to PE. These factors could cause elevation of homocysteine; the toxic metabolite, which subsequently leads to the development of PE. Sufficient levels of folate have been considered important during pregnancy and may reduce the risk of development of PE. This review aims at discussing genetic polymorphisms and nutritional deficiencies as probable predisposing factors and suggests considering fetal genotypes, varied ethnicities, and interaction of various other factors involved to render better conclusiveness to the present studies.
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Affiliation(s)
- Sadia Mahmood
- Department of Biochemistry, Kinnaird College for Women, Lahore, Pakistan
| | - Hooria Younas
- Department of Biochemistry, Kinnaird College for Women, Lahore, Pakistan
| | - Amna Younus
- Department of Biochemistry, Kinnaird College for Women, Lahore, Pakistan
| | - Sammar Nathenial
- Department of Biochemistry, Kinnaird College for Women, Lahore, Pakistan
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Sljivancanin Jakovljevic T, Kontic-Vucinic O, Nikolic N, Carkic J, Stamenkovic J, Soldatovic I, Milasin J. Association Between Endothelial Nitric Oxide Synthase (eNOS) -786 T/C and 27-bp VNTR 4b/a Polymorphisms and Preeclampsia Development. Reprod Sci 2021; 28:3529-3539. [PMID: 34046868 DOI: 10.1007/s43032-021-00632-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 05/19/2021] [Indexed: 02/05/2023]
Abstract
The aim of the present study was to analyze the distribution of genotypes and haplotypes of functional eNOS gene polymorphisms in the promoter (-786 T/C), intron 4 (VNTR4b/a) and exon 7 (894 G/T), in Serbian population of pregnant women, and establish a possible association between these polymorphisms and preeclampsia development. DNA was isolated from venous blood samples of 50 heathy pregnant women and 50 preeclampsia patients. Polymerase Chain Reaction/Restriction Fragment Length Polymorphism (PCR/RFLP) technique, with appropriate sets of primers and specific restriction enzymes, was used to determine polymorphisms in eNOS gene. Statistical analysis was done using the SPSS and HAPLOVIEW software packages. eNOS -786 T/C polymorphism was significantly associated with preeclampsia (P = 0.006). Homozygotes for the VNTR polymorphism had also an elevated risk of developing preeclampsia (OR=7.68, 95%CI (0.89-65.98)), especially the mild (OR=9.33, 95%CI (0.98-88.57)) and late form (OR=8.52, 95%CI (0.90-80.58)). The 894 G/T polymorphism was not associated with preeclampsia. "G-C-b" and "T-4a-T" haplotypes were more frequent in preeclampsia, though without reaching statistical significance. -786 T/C and VNTR 4b/a eNOS gene polymorphisms were associated with preeclampsia risk in Serbian patients.
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Affiliation(s)
| | - Olivera Kontic-Vucinic
- Department of Human Reproduction, The Clinic for Obstetrics and Gynecology, Clinical Center of Serbia, Belgrade, Serbia.,School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Nadja Nikolic
- Department of Human Genetics, School of Dental Medicine, University of Belgrade, Belgrade, Serbia
| | - Jelena Carkic
- Department of Human Genetics, School of Dental Medicine, University of Belgrade, Belgrade, Serbia
| | - Jelena Stamenkovic
- Department of Human Reproduction, The Clinic for Obstetrics and Gynecology, Clinical Center of Serbia, Belgrade, Serbia.,School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Ivan Soldatovic
- Institute of Medical Statistics and Informatics, School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Jelena Milasin
- Department of Human Genetics, School of Dental Medicine, University of Belgrade, Belgrade, Serbia
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Wang C, Zhou X, Liu H, Huang S. Three polymorphisms of renin-angiotensin system and preeclampsia risk. J Assist Reprod Genet 2020; 37:3121-3142. [PMID: 33230614 PMCID: PMC7714824 DOI: 10.1007/s10815-020-01971-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 10/06/2020] [Indexed: 12/26/2022] Open
Abstract
Purpose Some data suggest an association between the single nucleotide polymorphisms AGT T704C, ACE I/D, and AT1R A1166C and preeclampsia, but overall, the data are conflicting; the aim of our study was to discover a more stable and reliable association between these polymorphisms and PE risk. Methods A comprehensive literature search for this meta-analysis was conducted. Odds ratios (OR) and 95% confidence intervals (CIs) were calculated to evaluate the strength, and heterogeneity test was conducted. Trial sequential analysis was also performed. Results A total of forty studies were finally included in our meta-analysis. The AGT T704C polymorphism was associated with PE risk in three genetic models (dominant OR = 1.33, 95%CI = 1.12–1.59; heterozygote OR = 1.26, 95%CI = 1.05–1.52; homozygote OR = 1.44, 95%CI = 1.14–1.83). No heterogeneity was observed in the three genetic models for the ACE I/D polymorphism. For subgroup analysis by geography, no significant association was detected. Significant associations were observed in mixed race, early-onset, late-onset, and more than 200 subgroups for the AT1R A1166C polymorphism; however, only one study was analyzed in these subgroups. Conclusions Our results indicated the AGT T704C and ACE I/D polymorphisms were associated with an increased risk of PE. Increased risks were also observed for the two polymorphisms in subgroups including Asians, Europeans, Caucasoid, and Mongoloid. Moreover, an increased PE risk with the ACE I/D polymorphism in the severe PE population was also detected. Regarding the AT1R A1166C polymorphism, weak associations were observed, but further studies are required. Electronic supplementary material The online version of this article (10.1007/s10815-020-01971-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Chen Wang
- Department of Gynecology, Maternal and Child Health Affiliated Hospital of Nanchang University, Nanchang City, Jiangxi, People's Republic of China
| | - Xiao Zhou
- Department of Gynecology, Maternal and Child Health Affiliated Hospital of Nanchang University, Nanchang City, Jiangxi, People's Republic of China
| | - Huai Liu
- Department of Gynecology, Maternal and Child Health Affiliated Hospital of Nanchang University, Nanchang City, Jiangxi, People's Republic of China
| | - Shuhui Huang
- Department of Gynecology, Maternal and Child Health Affiliated Hospital of Nanchang University, Nanchang City, Jiangxi, People's Republic of China.
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Hou J, Lin L, Guo W, Luo D, Lan L. Association of methylenetetrahydrofolate reductase C677T polymorphism with the pre-eclampsia risk in Hakka pregnant women in Southern China. Gynecol Endocrinol 2020; 36:322-326. [PMID: 31452430 DOI: 10.1080/09513590.2019.1658188] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
The aim of this study is to clarify the possible association between methylenetetrahydrofolate reductase (MTHFR) C677T polymorphism and pre-eclampsia in Hakka pregnant women in southern China. Pre-eclampsia and normal pregnant women were consecutively collected and MTHFR C677T genotypes were determined by the DNA sequencing method. One hundred and thirteen pre-eclampsia patients were CC homozygote (113 of 191, 59.2%), 68 of 191 (35.6%) were CT heterozygote, and 10 of 191 (5.2%) were TT homozygote, with the frequency of the T allele equal to 0.77. This is in comparison with the normal control group where 106 of 202 (52.5%) were CC homozygote, 83 of 202 (41.1%) were CT heterozygote, and 13 of 202 (6.4%) were TT homozygote, with the frequency of the T allele equal to 0.27. No statistically significant differences were observed in genotype or allele frequencies between the pre-eclampsia and normal control for the C677T polymorphism of MTHFR gene (p > .05). The findings of this study suggest that polymorphisms of MTHFR C677T genes were not associated with pre-eclampsia in Hakka pregnant women from southern China, but additional studies are necessary to explore the mechanisms involving it.
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Affiliation(s)
- Jingyuan Hou
- Clinical Core Laboratory, Meizhou People's Hospital (Huangtang Hospital), Meizhou Hospital Affiliated to Sun Yat-Sen University, Meizhou, P. R. China
- Guangdong Provincial Key Laboratory of Precision Medicine and Clinical Translational Research of Hakka Population, Meizhou, P. R. China
| | - Lifang Lin
- Clinical Core Laboratory, Meizhou People's Hospital (Huangtang Hospital), Meizhou Hospital Affiliated to Sun Yat-Sen University, Meizhou, P. R. China
- Guangdong Provincial Key Laboratory of Precision Medicine and Clinical Translational Research of Hakka Population, Meizhou, P. R. China
- Prenatal Diagnosis Center, Meizhou People's Hospital (Huangtang Hospital), Meizhou Hospital Affiliated to Sun Yat-Sen University, Meizhou, P. R. China
| | - Wei Guo
- Clinical Core Laboratory, Meizhou People's Hospital (Huangtang Hospital), Meizhou Hospital Affiliated to Sun Yat-Sen University, Meizhou, P. R. China
- Guangdong Provincial Key Laboratory of Precision Medicine and Clinical Translational Research of Hakka Population, Meizhou, P. R. China
- Prenatal Diagnosis Center, Meizhou People's Hospital (Huangtang Hospital), Meizhou Hospital Affiliated to Sun Yat-Sen University, Meizhou, P. R. China
| | - Dandan Luo
- Prenatal Diagnosis Center, Meizhou People's Hospital (Huangtang Hospital), Meizhou Hospital Affiliated to Sun Yat-Sen University, Meizhou, P. R. China
| | - Liubing Lan
- Prenatal Diagnosis Center, Meizhou People's Hospital (Huangtang Hospital), Meizhou Hospital Affiliated to Sun Yat-Sen University, Meizhou, P. R. China
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Yi K, Xu J, Peng B. The association between GSTP1 polymorphism and pre-eclampsia risk: a system review and meta-analysis. Arch Gynecol Obstet 2019; 301:11-18. [PMID: 31875251 DOI: 10.1007/s00404-019-05411-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Accepted: 12/07/2019] [Indexed: 01/11/2023]
Abstract
PURPOSE Oxidative stress is thought to play an important role in the pathophysiology of pre-eclampsia. Polymorphism of Glutathione S-transferase P1 (GSTP1) protect cells against the cytotoxic effects of reactive compounds. Published data on the association between the GSTP1 polymorphism and pre-eclampsia risk are controversial. A meta-analysis was performed to assess whether the polymorphisms of GSTP1 are associated with pre-eclampsia risk. METHODS Medline, Embase, China National Knowledge Infrastructure, and Chinese Biomedicine Databases were searched to identify eligible studies. Pooled odds ratios (ORs) and 95% confidence intervals (CIs) for GSTP1 polymorphism and pre-eclampsia were appropriately derived from fixed-effects or random effects models. RESULTS A total of six studies were enrolled in this meta-analysis. The pooled analyses revealed that GSTP1 polymorphism was not associated with pre-eclampsia risk. Heterogeneity among studies was founded in allele contrast. Galbraith plot analyses were performed to assess the source of heterogeneity and one study was found to be contributor of heterogeneity. The heterogeneity decreased significantly after excluding that study. CONCLUSION Present meta-analysis demonstrates that GSTP1 polymorphism may be not correlated with pre-eclampsia risk.
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Affiliation(s)
- Ke Yi
- Department of Gynecology and Obstetrics, Key Laboratory of Obstetrics and Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second Hospital, Sichuan University, Chengdu, 610041, China
| | - JinFeng Xu
- Department of Gynecology and Obstetrics, Key Laboratory of Obstetrics and Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second Hospital, Sichuan University, Chengdu, 610041, China
| | - Bing Peng
- Department of Gynecology and Obstetrics, Key Laboratory of Obstetrics and Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second Hospital, Sichuan University, Chengdu, 610041, China.
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Abstract
Millions of Americans now entering midlife and old age were exposed to high levels of lead, a neurotoxin, as children. Evidence from animal-model and human observational studies suggest that childhood lead exposure may raise the risk of adult neurodegenerative disease, particularly dementia, through a variety of possible mechanisms including epigenetic modification, delayed cardiovascular and kidney disease, direct degenerative CNS injury from lead remobilized from bone, and lowered neural and cognitive reserve. Within the next ten years, the generation of children with the highest historical lead exposures, those born in the 1960s, 1970s, and 1980s, will begin to enter the age at which dementia symptoms tend to emerge. Many will also enter the age in which lead stored in the skeleton may be remobilized at greater rates, particularly for women entering menopause and men and women experiencing osteoporosis. Should childhood lead exposure prove pro-degenerative, the next twenty years will provide the last opportunities for possible early intervention to forestall greater degenerative disease burden across the aging lead-exposed population. More evidence is needed now to characterize the nature and magnitude of the degenerative risks facing adults exposed to lead as children and to identify interventions to limit long-term harm.
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Affiliation(s)
- Aaron Reuben
- Department of Psychology and Neuroscience, Duke University, Durham, NC, USA
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14
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Taysi S, Tascan AS, Ugur MG, Demir M. Radicals, Oxidative/Nitrosative Stress and Preeclampsia. Mini Rev Med Chem 2019; 19:178-193. [DOI: 10.2174/1389557518666181015151350] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 11/01/2016] [Accepted: 02/28/2017] [Indexed: 12/23/2022]
Abstract
Preeclampsia (PE) has a profound effect in increasing both maternal and fetal morbidity and
mortality especially in third World. Disturbances of extravillous trophoblast migration toward uterine
spiral arteries is characteristic feature of PE, which, in turn, leads to increased uteroplacental vascular
resistance and by vascular dysfunction resulting in reduced systemic vasodilatory properties. Underlying
pathogenesis appeared to be an altered bioavailability of nitric oxide (NO•) and tissue damage
caused by increased levels of reactive oxygen species (ROS) and reactive nitrogen species (RNS). The
increase in ROS and RNS production or the decrease in antioxidant mechanisms generates a condition
called oxidative and nitrosative stress, respectively, defined as the imbalance between pro- and antioxidants
in favor of the oxidants. Additionally, ROS might trigger platelet adhesion and aggregation
leading to intravascular coagulopathy. ROS-induced coagulopathy causes placental infarction and impairs
the uteroplacental blood flow in PE. As a consequence of these disorders could result in deficiencies
in oxygen and nutrients required for normal fetal development resulting in fetal growth restriction.
On the one hand, enzymatic and nonenzymatic antioxidants scavenge ROS and protect tissues against
oxidative damage. More specifically, placental antioxidant enzymes including catalase, superoxide
dismutase (SOD), and glutathione peroxidase (GSH-Px) protect the vasculature from ROS, maintaining
the vascular function. On the other hand, ischemia in placenta in PE reduces the antioxidant activity.
Collectively, the extent of oxidative stress would increase and therefore leads to the development
of the pathological findings of PE including hypertension and proteinuria. Our goal in this article is to
review current literature about researches demonstrating the interplay between oxidative, nitrosative
stresses and PE, about their roles in the pathophysiology of PE and also about the outcomes of current
clinical trials aiming to prevent PE with antioxidant supplementation.
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Affiliation(s)
- Seyithan Taysi
- Department of Medical Biochemistry, Gaziantep University, Medical School, Gaziantep, Turkey
| | - Ayse Saglam Tascan
- Department of Medical Biochemistry, Gaziantep University, Medical School, Gaziantep, Turkey
| | - Mete Gurol Ugur
- Obstetrics and Gynecology, Gaziantep University, Medical School, Gaziantep, Turkey
| | - Mustafa Demir
- Division of Obstetrics and Gynecology, Golbasi State Hospital, Adiyaman, Turkey
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Michita RT, Kaminski VDL, Chies JAB. Genetic Variants in Preeclampsia: Lessons From Studies in Latin-American Populations. Front Physiol 2018; 9:1771. [PMID: 30618791 PMCID: PMC6302048 DOI: 10.3389/fphys.2018.01771] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 11/23/2018] [Indexed: 12/13/2022] Open
Abstract
Placental vascularization is a tightly regulated physiological process in which the maternal immune system plays a fundamental role. Vascularization of the maternal-placental interface involves a wide range of mechanisms primarily orchestrated by the fetal extravillous trophoblast and maternal immune cells. In a healthy pregnancy, an immune cross-talk between the mother and fetal cells results in the secretion of immunomodulatory mediators, apoptosis of specific cells, cellular differentiation/proliferation, angiogenesis, and vasculogenesis, altogether favoring a suitable microenvironment for the developing embryo. In the context of vasculopathy underlying common pregnancy disorders, it is believed that inefficient invasion of extravillous trophoblast cells in the endometrium leads to a poor placental blood supply, which, in turn, leads to decreased secretion of angiogenic factors, hypoxia, and inflammation commonly associated with preterm delivery, intrauterine growth restriction, and preeclampsia. In this review, we will focus on studies published by Latin American research groups, providing an extensive review of the role of genetic variants from candidate genes involved in a broad spectrum of biological processes underlying the pathophysiology of preeclampsia. In addition, we will discuss how these studies contribute to fill gaps in the current understanding of preeclampsia. Finally, we discuss some trending topics from important fields associated with pregnancy vascular disorders (e.g., epigenetics, transplantation biology, and non-coding RNAs) and underscore their possible implications in the pathophysiology of preeclampsia. As a result, these efforts are expected to give an overview of the extent of scientific research produced in Latin America and encourage multicentric collaborations by highlighted regional research groups involved in preeclampsia investigation.
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Affiliation(s)
- Rafael Tomoya Michita
- Immunogenetics Laboratory, Department of Genetics, Biosciences Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Valéria de Lima Kaminski
- Immunogenetics Laboratory, Department of Genetics, Biosciences Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - José Artur Bogo Chies
- Immunogenetics Laboratory, Department of Genetics, Biosciences Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
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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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Shah SFA, Iqbal T, Qamar R, Rafiq MA, Hussain S. ARG1Gene Polymorphisms and Their Association in Individuals with Essential Hypertension: A Case–Control Study. DNA Cell Biol 2018; 37:609-616. [DOI: 10.1089/dna.2018.4222] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Affiliation(s)
- Syed Fawad Ali Shah
- Department of Biosciences, COMSATS Institute of Information Technology, Islamabad, Pakistan
| | - Tahir Iqbal
- Department of Internal Medicine, Shifa College of Medicine, Shifa International Hospital, Islamabad, Pakistan
| | - Raheel Qamar
- Department of Biosciences, COMSATS Institute of Information Technology, Islamabad, Pakistan
| | - Muhammad Arshad Rafiq
- Department of Biosciences, COMSATS Institute of Information Technology, Islamabad, Pakistan
| | - Sabir Hussain
- Department of Biosciences, COMSATS Institute of Information Technology, Islamabad, Pakistan
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Ding N, Wang X, Weisskopf MG, Sparrow D, Schwartz J, Hu H, Park SK. Lead-Related Genetic Loci, Cumulative Lead Exposure and Incident Coronary Heart Disease: The Normative Aging Study. PLoS One 2016; 11:e0161472. [PMID: 27584680 PMCID: PMC5008632 DOI: 10.1371/journal.pone.0161472] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 08/06/2016] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Cumulative exposure to lead is associated with cardiovascular outcomes. Polymorphisms in the δ-aminolevulinic acid dehydratase (ALAD), hemochromatosis (HFE), heme oxygenase-1 (HMOX1), vitamin D receptor (VDR), glutathione S-transferase (GST) supergene family (GSTP1, GSTT1, GSTM1), apolipoprotein E (APOE),angiotensin II receptor-1 (AGTR1) and angiotensinogen (AGT) genes, are believed to alter toxicokinetics and/or toxicodynamics of lead. OBJECTIVES We assessed possible effect modification by genetic polymorphisms in ALAD, HFE, HMOX1, VDR, GSTP1, GSTT1, GSTM1, APOE, AGTR1 and AGT individually and as the genetic risk score (GRS) on the association between cumulative lead exposure and incident coronary heart disease (CHD) events. METHODS We used K-shell-X-ray fluorescence to measure bone lead levels. GRS was calculated on the basis of 22 lead-related loci. We constructed Cox proportional hazard models to compute adjusted hazard ratios (HRs) and 95% confidence intervals (CIs) for incident CHD. We applied inverse probability weighting to account for potential selection bias due to recruitment into the bone lead sub-study. RESULTS Significant effect modification was found by VDR, HMOX1, GSTP1, APOE, and AGT genetic polymorphisms when evaluated individually. Further, the bone lead-CHD associations became larger as GRS increases. After adjusting for potential confounders, a HR of CHD was 2.27 (95%CI: 1.50-3.42) with 2-fold increase in patella lead levels, among participants in the top tertile of GRS. We also detected an increasing trend in HRs across tertiles of GRS (p-trend = 0.0063). CONCLUSIONS Our findings suggest that lead-related loci as a whole may play an important role in susceptibility to lead-related CHD risk. These findings need to be validated in a separate cohort containing bone lead, lead-related genetic loci and incident CHD data.
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Affiliation(s)
- Ning Ding
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Xin Wang
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Marc G. Weisskopf
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, United States of America
| | - David Sparrow
- Veterans Affairs Normative Aging Study, Veterans Affairs Boston Healthcare System, Boston, Massachusetts, United States of America
- Department of Medicine, Boston University School of Medicine, Boston, Massachusetts, United States of America
| | - Joel Schwartz
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, United States of America
| | - Howard Hu
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
- Department of Environmental Health Sciences, School of Public Health, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Sung Kyun Park
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, Michigan, United States of America
- Department of Environmental Health Sciences, School of Public Health, University of Michigan, Ann Arbor, Michigan, United States of America
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Zeng F, Zhu S, Wong MCS, Yang Z, Tang J, Li K, Su X. Associations between nitric oxide synthase 3 gene polymorphisms and preeclampsia risk: a meta-analysis. Sci Rep 2016; 6:23407. [PMID: 26997284 PMCID: PMC4800677 DOI: 10.1038/srep23407] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Accepted: 03/02/2016] [Indexed: 11/23/2022] Open
Abstract
Previous studies have examined the role of three NOS3 gene polymorphisms [G894T, T-786C, and the variable number of tandem repeats 4b/a (VNTR 4b/a)] in the susceptibility to preeclampsia with inconclusive findings. We therefore conducted an updated meta-analysis by including more studies. The most appropriate genetic model was chosen for each polymorphism by using a well-established method. Pooled results indicated that, compared with the GT + GG genotype, the TT genotype of G894T was associated with an increased risk of preeclampsia (odds ratio (OR) = 1.46; 95% confidence interval (CI) = 1.21–1.77, P < 0.001; I2 = 40.2%). The CC genotype of T-786C was also associated with a higher risk of preeclampsia (OR = 1.30; 95% CI = 1.07–1.58, P = 0.034; I2 = 46.9%) than the CT + TT genotype. No association was found for VNTR 4b/a. Stratified analysis indicated that the increased risk was evident for high-quality studies both for G894T and T-786C, and for studies conducted among Caucasians and Africans for T-786C. However, the increased risk for T-786C among Africans needs further confirmation due to the high probability of false-positive reports. Our results suggested that G894T and T-786C polymorphisms, but not VNTR 4b/a, were associated with an increased risk of preeclampsia.
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Affiliation(s)
- Fangfang Zeng
- School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,CUHK Shenzhen Research Institute, Shenzhen 518057, China
| | - Sui Zhu
- Department of Epidemiology and Biostatistics, West China School of Public Health, Sichuan University, Sichuan 610044, China
| | - Martin Chi-Sang Wong
- School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,CUHK Shenzhen Research Institute, Shenzhen 518057, China
| | - Zuyao Yang
- School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,CUHK Shenzhen Research Institute, Shenzhen 518057, China
| | - Jinling Tang
- School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,CUHK Shenzhen Research Institute, Shenzhen 518057, China
| | - Keshen Li
- Stroke Center, Neurology &Neurosurgery Division, The Clinical Medicine Research Institute &The First Affiliated Hospital, Jinan University, Guangzhou 510630, China
| | - Xuefen Su
- School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,CUHK Shenzhen Research Institute, Shenzhen 518057, China
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Wu X, Yang K, Tang X, Sa Y, Zhou R, Liu J, Luo Y, Tang W. Folate metabolism gene polymorphisms MTHFR C677T and A1298C and risk for preeclampsia: a meta-analysis. J Assist Reprod Genet 2015; 32:797-805. [PMID: 25758986 DOI: 10.1007/s10815-014-0408-8] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2014] [Accepted: 12/11/2014] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVES MTHFR C677T and A1298C have been associated with the risk of preeclampsia (PE), but with conflicting results. We performed this meta-analysis to derive a more precise estimation of the association between MTHFR polymorphisms and PE. STUDY DESIGN An electronic search of PubMed and Chinese Biomedicine database was conducted to select studies for meta-analysis. 54 case controlled studies containing MTHFR C677T and A1298C gene polymorphisms were chosen, and odds ratio (OR) with confidence interval (CI) was used to assess the strength of this association. RESULT These studies evaluated 7398 cases and 11230 controls for MTHFR C677T. The overall results suggested that MTHFR C677T was associated with the risk of PE. (T vs. C: OR = 1.157, 95% CI: 1.057-1.266, p = 0.002; TT + CT vs. CC: OR = 1.165, 95% CI : 1.049-1.293, P = 0.004; TT vs. CT + CC: OR = 1.371, 95% CI: 1.153-1.63, p < 0.001). We also evaluated 1103 cases and 988 controls for MTHFR A1298C but could not demonstrate an increased risk of PE for this polymorphism (p = 0.667). A symmetric funnel plot, the Egger's test (p = 0.819) suggested a lack of publication bias. CONCLUSION This meta-analysis supports the idea that MTHFR C677T genotype is associated with increased risk for PE, especially in the case of Asians and Caucasians.
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Affiliation(s)
- Xiaoming Wu
- Laboratory of Molecular Genetics of Aging & Tumor, Medical Faculty, Kunming University of Science and Technology, Chenggong Campus, 727 South Jingming Road, Kunming, Yunnan, 650500, China
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21
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The early-onset preeclampsia is associated with MTHFR and FVL polymorphisms. Arch Gynecol Obstet 2014; 291:1303-12. [DOI: 10.1007/s00404-014-3561-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Accepted: 11/27/2014] [Indexed: 10/24/2022]
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22
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Yang B, Fan S, Zhi X, Li Y, Liu Y, Wang D, He M, Hou Y, Zheng Q, Sun G. Associations of MTHFR gene polymorphisms with hypertension and hypertension in pregnancy: a meta-analysis from 114 studies with 15411 cases and 21970 controls. PLoS One 2014; 9:e87497. [PMID: 24505291 PMCID: PMC3914818 DOI: 10.1371/journal.pone.0087497] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2013] [Accepted: 12/24/2013] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Several epidemiological studies have investigated the associations of methylenetetrahydrofolate reductase (MTHFR) C677T and A1298C polymorphisms with hypertension (H) or hypertension in pregnancy (HIP). However, the results were controversial. We therefore performed a comprehensive meta-analysis to provide empirical evidences on the associations. METHODOLOGIES The English and Chinese databases were systematically searched to identify relevant studies. Odds ratios (ORs) and 95% confidence intervals (CIs) were calculated to evaluate the strength of the associations. Meta-regression, subgroup analysis, sensitivity analysis, cumulative meta-analysis and assessment of publication bias were performed in our study. PRINCIPAL FINDINGS A total of 114 studies with 15411 cases and 21970 controls were included, 111 studies with 15094 cases and 21633 controls for the C677T polymorphism and 21 with 2533 cases and 2976 controls for the A1298C polymorphism. Overall, the C677T polymorphism was significantly associated with H and HIP (H & HIP: OR = 1.26, 95% CI = 1.17-1.34; H: OR = 1.36, 95% CI = 1.20-1.53; HIP: OR = 1.21, 95% CI = 1.08-1.32). Stratified analysis by ethnicity revealed a significant association among East Asians and Caucasians, but not among Latinos, Black Africans, and Indians and Sri Lankans. In the stratified analyses according to source of controls, genotyping method, sample size and study quality, significant associations were observed in all the subgroups, with the exception of population based subgroup in H studies and large sample size and "others" genotyping method subgroups in HIP studies. For the A1298C polymorphism, no significant association was observed either in overall or subgroup analysis under all genetic models. CONCLUSIONS This meta-analysis suggests that the MTHFR C677T rather than A1298C polymorphism may be associated with H & HIP, especially among East Asians and Caucasians.
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Affiliation(s)
- Boyi Yang
- Environment and Non-Communicable Diseases Research Center, School of Public Health, China Medical University, Shenyang, China
| | - Shujun Fan
- Environment and Non-Communicable Diseases Research Center, School of Public Health, China Medical University, Shenyang, China
| | - Xueyuan Zhi
- Environment and Non-Communicable Diseases Research Center, School of Public Health, China Medical University, Shenyang, China
| | - Yongfang Li
- Environment and Non-Communicable Diseases Research Center, School of Public Health, China Medical University, Shenyang, China
| | - Yuyan Liu
- Environment and Non-Communicable Diseases Research Center, School of Public Health, China Medical University, Shenyang, China
| | - Da Wang
- Environment and Non-Communicable Diseases Research Center, School of Public Health, China Medical University, Shenyang, China
| | - Miao He
- Environment and Non-Communicable Diseases Research Center, School of Public Health, China Medical University, Shenyang, China
| | - Yongyong Hou
- Department of Medical and Molecular Genetics, School of Medicine, Indiana University, Indianapolis, Indiana, United States of America
| | - Quanmei Zheng
- Environment and Non-Communicable Diseases Research Center, School of Public Health, China Medical University, Shenyang, China
| | - Guifan Sun
- Environment and Non-Communicable Diseases Research Center, School of Public Health, China Medical University, Shenyang, China
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