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Akcılar R, Yalınbaş EE, Mutlu F. MTHFR 677 C > T Gene Polymorphism is Associated with Large for Gestational Age Infants. Fetal Pediatr Pathol 2024:1-12. [PMID: 38743580 DOI: 10.1080/15513815.2024.2352755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Accepted: 05/02/2024] [Indexed: 05/16/2024]
Abstract
BACKGROUND The aim of this study was to investigate the methylenetetrahydrofolate reductase (MTHFR) 677 C > T gene polymorphism in term infants born small (SGA), appropriate (AGA), and large for gestational age (LGA). METHODS The study comprised 165 newborns with SGA, LGA and AGA. Genomic DNA was isolated from the peripheral blood. Samples were genotyped for MTHFR 677 C > T gene polymorphisms using PCR-RFLP. RESULTS There was a statistically significant difference between the genotype and their allelic distribution of AGA, SGA, and LGA. The newborns carrying the TT genotype had higher birth weight than those carrying the CC and CT genotypes. The frequency of MTHFR 677 TT genotype and T allele was significantly higher and was found to be linked with a higher risk in LGA than in the AGA group. CONCLUSIONS The MTHFR 677 C > T gene polymorphism can be used as a genetic marker in Turkish LGA newborns, but not in SGA.
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Affiliation(s)
- Raziye Akcılar
- Faculty of Medicine, Department of Physiology, Kütahya Health Sciences University, Kütahya, Turkey
| | | | - Fezan Mutlu
- Faculty of Medicine, Department of Biostatistics, Eskisehir Osmangazi University, Eskisehir, Turkey
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2
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Wen Y, He H, Zhao K. Thrombophilic gene polymorphisms and recurrent pregnancy loss: a systematic review and meta-analysis. J Assist Reprod Genet 2023:10.1007/s10815-023-02823-x. [PMID: 37248348 DOI: 10.1007/s10815-023-02823-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 04/29/2023] [Indexed: 05/31/2023] Open
Abstract
PURPOSE Recurrent pregnancy loss (RPL) is affecting 1-4% of women who conceive approximately, and no cause could be found in more than 50% of women suffering from RPL. Inherited thrombophilias have got increasing attention in women with unexplained RPL, so we aim to explore the relationship among these most common thrombophilic polymorphisms and RPL through a literature review and meta-analysis. METHODS Observational studies from PubMed, Embase, Cochrane, and Web of Science from 1997 to 7 April 2022 were searched. For each genetic variant, a fixed or random-effect model was used according to the heterogeneity test to calculate pooled ORs and 95% CIs for both dominant and recessive genetic models. Egger's line regression test was used to assess publication bias. The quality of the included articles was assessed by the Newcastle Ottawa scale. RESULTS A total of 124 articles comprising 17,278 RPL patients and 16,021 controls were included. Results showed that hyperhomocysteinemia (MTHFR) C677T (dominant model: OR, 1.43; 95% CI, 1.25-1.64; recessive model: OR, 1.60; 95% CI, 1.36-1.87), MTHFR A1298C (dominant model: OR, 1.66; 95% CI, 1.26-2.18; recessive model: OR, 1.79; 95% CI, 1.42-2.26), PAI-1 4G/5G (dominant model: OR, 1.67; 95% CI, 1.36-2.06; recessive model: OR, 1.80; 95% CI, 1.39-2.32), angiotensin-converting enzyme I/D (OR, 1.23; 95% CI, 1.00-1.53), Factor XIII V34L (OR, 1.38; 95% CI, 1.02-1.87), and β-fibrinogen-455G/A (OR, 1.60; 95% CI, 1.02-2.51) were significantly associated with RPL. CONCLUSION This study provides potentially useful clinical markers to evaluate the risk of RPL or to help unexplained RPL patients identify possible causes, which may allow for targeted treatment.
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Affiliation(s)
- Yuanjia Wen
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Haodong He
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kai Zhao
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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Fu Y, Song Y, Zhang J, Wei LP, Sun XR. Decreased expression and DNA hypermethylation of syncytin-1 in human villus tissues with unexplained recurrent spontaneous abortion. J Reprod Immunol 2023; 155:103784. [PMID: 36508844 DOI: 10.1016/j.jri.2022.103784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 10/27/2022] [Accepted: 12/06/2022] [Indexed: 12/13/2022]
Abstract
Recurrent spontaneous abortion (RSA) affects approximately 5 % of women of reproductive age worldwide. The etiology and pathogenesis of approximately 50 % of RSA cases currently remain unclear, which known as unexplained RSA (URSA). Syncytin-1, an envelope protein encoded by HERV-W gene, is essential for human embryonic development. The purpose of this study was to explore the correlation between syncytin-1 expression and URSA occurrence. The villi tissues of URSA patients and patients with voluntary termination of pregnancy for non-medical reasons in early pregnancy (Control group) were collected. Compared with the Control group, syncytin-1 was abnormally low expressed in URSA villus tissues, and the HERV-W gene promoter was hypermethylated. Compared with the control group, the global DNA methylation level and the expression level of DNA methylases in the villus tissues of the URSA group had no significant difference. In addition, compared with the Control group, URSA villus tissue showed obviously abnormal apoptosis. Overexpression of syncytin-1 promoted the proliferation of HTR-8 cells and inhibited their apoptosis; while knockdown of syncytin-1 inhibited cell proliferation and promoted cell apoptosis. URSA villus tissue exhibited hypermethylation of the HERV-W gene and down-regulation of syncytin-1 expression. Syncytin-1 has the potential to be a predictive and diagnostic biomarker for URSA.
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Affiliation(s)
- Yang Fu
- Department of Reproductive Medicine Center, Jinan Maternity and Child Care Hospital, Jinan 250001, Shandong, China.
| | - Yan Song
- Department of Obstetrics and Gynecology, Jinan Maternity and Child Care Hospital, Jinan 250001, Shandong, China
| | - Juan Zhang
- Department of Obstetrics and Gynecology, Jinan Maternity and Child Care Hospital, Jinan 250001, Shandong, China
| | - Lin-Ping Wei
- Department of Obstetrics and Gynecology, Jinan Maternity and Child Care Hospital, Jinan 250001, Shandong, China
| | - Xiao-Rong Sun
- Department of Pathology, Jinan Maternity and Child Care Hospital, Jinan 250001, Shandong, China
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Kaldygulova L, Ukybassova T, Aimagambetova G, Gaiday A, Tussupkaliyev A. Biological Role of Folic Acid in Pregnancy and Possible Therapeutic Application for the Prevention of Preeclampsia. Biomedicines 2023; 11:biomedicines11020272. [PMID: 36830809 PMCID: PMC9953465 DOI: 10.3390/biomedicines11020272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 12/20/2022] [Accepted: 01/10/2023] [Indexed: 01/20/2023] Open
Abstract
The rationale and importance of folic acid supplementation during pregnancy for fetal congenital defect prevention are accepted worldwide. Moreover, a sufficient plasma concentration of folates can reduce the incidence of spontaneous abortions, and support the normal expansion of placental blood vessels, ensuring physiological placental blood flow, thus promoting appropriate fetal growth and development. Furthermore, there is emerging evidence that long-term supplementation with folic acid can effectively prevent preeclampsia. Preeclampsia is unique to the human species in complications during pregnancy, which contributes to maternal and perinatal mortality worldwide. In the pathogenesis of preeclampsia abnormal placental invasion, the excess of antiangiogenic factors and maternal-placental syndrome play a key role. Increased blood levels of homocysteine during pregnancy are associated with the risk of preeclampsia. Moreover, hyperhomocysteinemia has been proposed to be an independent risk factor for preeclampsia. Folate supplementation helps to decrease elevated levels of homocysteine; thus, the role of folic acid supplementation in pregnancy is even more important. Multiple reports suggest that folate administration decreases the level of serum homocysteine and, therefore, reduce the risk and severity of preeclampsia. However, the association between folic acid supplementation and the decreased risk of preeclampsia has been investigated with controversial conclusions. Currently, the optimal dose of folic acid that is effective for preeclampsia prevention remains uncertain. In this review, we aim to summarize the accumulated knowledge on the role of folic acid in the pathogenesis of preeclampsia, and the possible impact of folate supplementation on the decreased risk of preeclampsia.
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Affiliation(s)
- Lyazzat Kaldygulova
- Department of Obstetrics and Gynecology #2, West-Kazakhstan Marat Ospanov Medical University, Aktobe 030012, Kazakhstan
| | - Talshyn Ukybassova
- Clinical Academic Department of Women’s Health, CF “University Medical Center”, Astana 010000, Kazakhstan
| | - Gulzhanat Aimagambetova
- Department of Biomedical Sciences, School of Medicine, Nazarbayev University, Astana 010000, Kazakhstan
- Correspondence:
| | - Andrey Gaiday
- Department of Obstetrics and Gynecology #2, West-Kazakhstan Marat Ospanov Medical University, Aktobe 030012, Kazakhstan
| | - Akylbek Tussupkaliyev
- Department of Obstetrics and Gynecology #2, West-Kazakhstan Marat Ospanov Medical University, Aktobe 030012, Kazakhstan
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Zhu PF, Song ZJ, Bi XY, Su D, Li XL, Chen YH, Wu XQ. Correlation between methylenetetrahydrofolate reductase gene-specific methylation and recurrent spontaneous abortion. Biotechnol Genet Eng Rev 2023:1-11. [PMID: 36606759 DOI: 10.1080/02648725.2022.2164137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Accepted: 12/27/2022] [Indexed: 01/07/2023]
Abstract
OBJECTIVE To investigate the correlation between methylenetetrahydrofolate reductase (MTHFR) gene-specific methylation and recurrent spontaneous abortion (RSA). METHODS A total of 50 RSA patients who visited our hospital were recruited in the study group; 50 multiparous women who underwent physical examinations during the same period were enrolled in the control group. The levels of homocysteine, folic acid, and vitamin B12 and their MTHFR gene polymorphism and specific methylation were measured in both groups. The Logistic regression equation was used to analyze the correlation between MTHFR gene-specific methylation and RSA. RESULTS The methylated allele MM was not found in the control group, and the frequency in the study group was 1.19%. The frequency of the MU genotype in the study group 32.93% was higher than that in the control group 12.45%. The frequency of methylated alleles of CC and CT genotypes carrying MTHFR C677T polymorphism in the study group was higher than that in the control group (P < 0.05). There was no significant difference in the TT genotype between the two groups (P > 0.05). Multivariate Logistic regression analysis exhibited that patients with methylated alleles of CC genotype had a risk of RSA increased by 1.167 times, and the risk increased by 2.500 times in patients with methylated alleles of CT genotype (P < 0.05). 83.33% of RSA patients carrying methylated alleles affected hyperhomocysteinemia. In patients with elevated homocysteine levels, the risk of RSA caused by methylated allele was significantly increased by 7.321 times. CONCLUSION MTHFR gene-specific methylation can significantly increase the risk of RSA.
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Affiliation(s)
- Peng-Fei Zhu
- Center of Reproductive Medicine, Children's Hospital of Shanxi and Women Health Center, Shanxi, China
| | - Zhi-Jiao Song
- Health Care Department, Children's Hospital of Shanxi and Women Health Center, Shanxi, China
| | - Xing-Yu Bi
- Center of Reproductive Medicine, Children's Hospital of Shanxi and Women Health Center, Shanxi, China
| | - Dan Su
- Center of Reproductive Medicine, Children's Hospital of Shanxi and Women Health Center, Shanxi, China
| | - Xiao-Ling Li
- Center of Reproductive Medicine, Children's Hospital of Shanxi and Women Health Center, Shanxi, China
| | - Yan-Hua Chen
- Center of Reproductive Medicine, Children's Hospital of Shanxi and Women Health Center, Shanxi, China
| | - Xue-Qing Wu
- Center of Reproductive Medicine, Children's Hospital of Shanxi and Women Health Center, Shanxi, China
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Parthasarathy S, Soundararajan P, Sakthivelu M, Karuppiah KM, Velusamy P, Gopinath SC, Pachaiappan R. The role of prognostic biomarkers and their implications in early detection of preeclampsia: A systematic review. Process Biochem 2023. [DOI: 10.1016/j.procbio.2023.01.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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7
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Reshetnikov EA, Stepanov VA, Serebrova VN, Bocharova AV, Trifonova EA, Ponomarenko IV, Reshetnikova YN, Efremova OA, Orlova VS, Batlutskaya IV, Sorokina IN, Churnosov MI. Genes TMEM136 and PPP1R12C Differentially Expressed in the Placenta Are Associated with Preeclampsia. RUSS J GENET+ 2022. [DOI: 10.1134/s1022795422120110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Li J, Wang L, Ding J, Cheng Y, Diao L, Li L, Zhang Y, Yin T. Multiomics Studies Investigating Recurrent Pregnancy Loss: An Effective Tool for Mechanism Exploration. Front Immunol 2022; 13:826198. [PMID: 35572542 PMCID: PMC9094436 DOI: 10.3389/fimmu.2022.826198] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 03/31/2022] [Indexed: 12/18/2022] Open
Abstract
Patients with recurrent pregnancy loss (RPL) account for approximately 1%-5% of women aiming to achieve childbirth. Although studies have shown that RPL is associated with failure of endometrial decidualization, placental dysfunction, and immune microenvironment disorder at the maternal-fetal interface, the exact pathogenesis remains unknown. With the development of high-throughput technology, more studies have focused on the genomics, transcriptomics, proteomics and metabolomics of RPL, and new gene mutations and new biomarkers of RPL have been discovered, providing an opportunity to explore the pathogenesis of RPL from different biological processes. Bioinformatics analyses of these differentially expressed genes, proteins and metabolites also reflect the biological pathways involved in RPL, laying a foundation for further research. In this review, we summarize the findings of omics studies investigating decidual tissue, villous tissue and blood from patients with RPL and identify some possible limitations of current studies.
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Affiliation(s)
- Jianan Li
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Linlin Wang
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, China.,Shenzhen Key Laboratory of Reproductive Immunology for Peri-implantation, Shenzhen Zhongshan Institute for Reproduction and Genetics, Shenzhen Zhongshan Urology Hospital, Shenzhen, China
| | - Jinli Ding
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yanxiang Cheng
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Lianghui Diao
- Shenzhen Key Laboratory of Reproductive Immunology for Peri-implantation, Shenzhen Zhongshan Institute for Reproduction and Genetics, Shenzhen Zhongshan Urology Hospital, Shenzhen, China
| | - Longfei Li
- Shenzhen Key Laboratory of Reproductive Immunology for Peri-implantation, Shenzhen Zhongshan Institute for Reproduction and Genetics, Shenzhen Zhongshan Urology Hospital, Shenzhen, China
| | - Yan Zhang
- Department of Clinical Laboratory, Renmin Hospital of Wuhan University, Wuhan, China
| | - Tailang Yin
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, China
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Talwar S, Prasad S, Kaur L, Mishra J, Puri M, Sachdeva MP, Saraswathy KN. MTR, MTRR and CBS Gene Polymorphisms in Recurrent Miscarriages: A Case Control Study from North India. J Hum Reprod Sci 2022; 15:191-196. [PMID: 35928461 PMCID: PMC9345278 DOI: 10.4103/jhrs.jhrs_186_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 05/30/2022] [Accepted: 05/31/2022] [Indexed: 11/11/2022] Open
Abstract
Background: According to various epidemiological studies, the aetiology of recurrent miscarriages (RMs) is multifactorial. The goal of this study is to learn more about the link between genetic polymorphisms and RM. Aim: To evaluate the association of 5-Methytetrahydrofolate-Homocysteine Methyltransferase (MTR) A2756G, 5-Methytetrahydrofolate-Homocysteine Methyltransferase Reductase (MTRR) A66G and cystathionine beta-synthase (CBS) 844INS68 genetic polymorphisms with RM and also to understand the combined effect of the selected genotypes. Study Setting and Design: This was a hospital-based, case–control, observational study. Materials and Methods: A total of 516 participants were recruited in the present study, of which 200 RM cases and 258 controls were included in the present study. Fasting blood sample (~5ml) was drawn from all the participants and were screened for genetic polymorphisms of MTR A2756G, MTRR A66G and CBS 844INS68. Statistical Analysis: The frequency, odd's ratio and Hardy-Weinberg equilibrium were evaluated. SPSS (version 21.0) was used for the data analysis. Results: MTR A2756G genetic polymorphism was not associated with the risk of RM. The ancestral allele of MTRR A66G and the mutant allele of CBS 844INS68 was causing an increased risk of more than two folds for RM. CBS 844INS68 in combination with MTR A2756G was found to pose an increased risk of more than two folds for RM. Conclusion: Genetic polymorphisms particularly MTRR A66G and CBS 844INS68 seems to be elevating the risk and hence making women susceptible for RM.
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Affiliation(s)
- Seerat Talwar
- Department of Anthropology, Laboratory of Biochemical and Molecular Anthropology, University of Delhi, New Delhi, India
| | - Sweta Prasad
- Department of Anthropology, Laboratory of Biochemical and Molecular Anthropology, University of Delhi, New Delhi, India
| | - Lovejeet Kaur
- Maternal and Child Health Division, Translational Health Science and Technology Institute, Faridabad, Haryana, India
| | - Jyoti Mishra
- Department of Obstetrics and Gynaecology, Lady Hardinge Medical College and SMT, Sucheta Kriplani Hospital, New Delhi, India
| | - Manju Puri
- Department of Obstetrics and Gynaecology, Lady Hardinge Medical College and SMT, Sucheta Kriplani Hospital, New Delhi, India
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Pruszkowska-Przybylska P, Brennecke S, Moses EK, Melton PE. Evaluation of epigenetic age calculators between preeclampsia and normotensive pregnancies in an Australian cohort. Sci Rep 2022; 12:1664. [PMID: 35102228 PMCID: PMC8803933 DOI: 10.1038/s41598-022-05744-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Accepted: 01/11/2022] [Indexed: 12/19/2022] Open
Abstract
Advanced biological aging, as assessed through DNA methylation markers, is associated with several complex diseases. The associations between maternal DNA methylation age and preeclampsia (PE) have not been fully assessed. The aim of this study was to examine if increased maternal DNA methylation age (DNAmAge) was shown to be accelerated in women with PE when compared to women who had normotensive pregnancies. The case/control cohort available for study consisted of 166 women (89 with normotensive pregnancy, 77 with PE) recruited previously at the Royal Women’s Hospital in Melbourne, Australia. DNA methylation profiles were obtained using the Illumina EPIC Infinium array for analysis of genomic DNA isolated from whole blood. These profiles were used to calculate seven estimates of DNAmAge and included (1) Horvath, (2) Hannum, (3) Horvath Skin and Blood, (4) Wu, (5) PhenoAge, (6) telomere length and (7) GrimAge and its surrogate measures. Three measures of DNA methylation age acceleration were calculated for all seven measures using linear regression. Pearson's correlation was performed to investigate associations between chronological age and DNAmAge. Differences between chronological age and DNAmAge and epigenetic age acceleration were investigated using t-tests. No significant difference was observed for chronological age between women with PE (age = 30.53 ± 5.68) and women who had normotensive pregnancies (age = 31.76 ± 4.76). All seven DNAmAge measures were significantly correlated (p < 0.001) with chronological age. After accounting for multiple testing and investigating differences in DNAmAge between normotensive women and women with PE, only Wu DNAmAge was significant (p = 0.001). When examining differences for epigenetic age acceleration between PE and normotensive women Hannum, Wu, and PhenoAge DNAmAge estimates (p < 0.001) were significant for both epigenetic age acceleration and intrinsic acceleration models. We found that accelerated maternal DNAmAge is increased in women with PE in some models of epigenetic aging. This research underlines the importance for further investigation into the potential changes of differential DNA methylation in PE.
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Affiliation(s)
| | - Shaun Brennecke
- Pregnancy Research Centre, Department of Maternal-Fetal Medicine, Royal Women's Hospital, Melbourne, VIC, Australia.,Department of Obstetrics and Gynaecology, The Royal Women's Hospital, The University of Melbourne, Melbourne, VIC, Australia
| | - Eric K Moses
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia.,School of Global Population Health, University of Western Australia, Perth, Australia
| | - Phillip E Melton
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia.,School of Biomedical Science, University of Western Australia, Perth, Australia
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11
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Anastasiadi D, Venney CJ, Bernatchez L, Wellenreuther M. Epigenetic inheritance and reproductive mode in plants and animals. Trends Ecol Evol 2021; 36:1124-1140. [PMID: 34489118 DOI: 10.1016/j.tree.2021.08.006] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 08/05/2021] [Accepted: 08/09/2021] [Indexed: 12/17/2022]
Abstract
Epigenetic inheritance is another piece of the puzzle of nongenetic inheritance, although the prevalence, sources, persistence, and phenotypic consequences of heritable epigenetic marks across taxa remain unclear. We systematically reviewed over 500 studies from the past 5 years to identify trends in the frequency of epigenetic inheritance due to differences in reproductive mode and germline development. Genetic, intrinsic (e.g., disease), and extrinsic (e.g., environmental) factors were identified as sources of epigenetic inheritance, with impacts on phenotype and adaptation depending on environmental predictability. Our review shows that multigenerational persistence of epigenomic patterns is common in both plants and animals, but also highlights many knowledge gaps that remain to be filled. We provide a framework to guide future studies towards understanding the generational persistence and eco-evolutionary significance of epigenomic patterns.
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Affiliation(s)
- Dafni Anastasiadi
- The New Zealand Institute for Plant and Food Research Ltd, Nelson Research Centre, 293 Akersten St, Nelson 7010, New Zealand
| | - Clare J Venney
- Institut de Biologie Intégrative des Systèmes (IBIS), Département de Biologie, Université Laval, 1030 Avenue de la Médecine, G1V 0A6, Québec, QC, Canada
| | - Louis Bernatchez
- Institut de Biologie Intégrative des Systèmes (IBIS), Département de Biologie, Université Laval, 1030 Avenue de la Médecine, G1V 0A6, Québec, QC, Canada
| | - Maren Wellenreuther
- The New Zealand Institute for Plant and Food Research Ltd, Nelson Research Centre, 293 Akersten St, Nelson 7010, New Zealand; School of Biological Sciences, The University of Auckland, 3A Symonds St, Auckland 1010, New Zealand.
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12
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Abstract
Recurrent pregnancy loss (RPL) is a common and severe pathological pregnancy, whose pathogenesis is not fully understood. With the development of epigenetics, the study of DNA methylation, provides a new perspective on the pathogenesis and therapy of RPL. The abnormal DNA methylation of imprinted genes, placenta-specific genes, immune-related genes and sperm DNA may, directly or indirectly, affect embryo implantation, growth and development, leading to the occurrence of RPL. In addition, the unique immune tolerogenic microenvironment formed at the maternal-fetal interface has an irreplaceable effect on the maintenance of pregnancy. In view of these, changes in the cellular components of the maternal-fetal immune microenvironment and the regulation of DNA methylation have attracted a lot of research interest. This review summarizes the research progress of DNA methylation involved in the occurrence of RPL and the regulation of the maternal-fetal immune microenvironment. The review provides insights into the personalized diagnosis and treatment of RPL.
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Affiliation(s)
- Qi Zhou
- Reproductive Medical Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yunhe Xiong
- Urology Department, Renmin Hospital of Wuhan University, Wuhan, China
| | - Bing Qu
- Reproductive Medical Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Anyu Bao
- Department of Clinical Laboratory, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yan Zhang
- Department of Clinical Laboratory, Renmin Hospital of Wuhan University, Wuhan, China
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13
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Khan MFJ, Little J, Mossey PA, Butali A, Autelitano L, Meazzini MC, Rubini M. MTHFR promoter methylation might mitigate the effect of smoking at the level of LINE-1 in cleft lip tissues: A preliminary study. Birth Defects Res 2021; 113:1463-1469. [PMID: 34668347 DOI: 10.1002/bdr2.1959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 07/18/2021] [Accepted: 09/10/2021] [Indexed: 11/08/2022]
Abstract
BACKGROUND The medial and maxillary aspects of the upper lip originate at separate embryonic stages and therefore may experience different maternal exposure patterns which may affect methylation. Based on this hypothesis, we investigated the level of methylation of the methylene tetrahydrofolate reductase promoter gene (mMTHFR) in tissues from cleft lip, and mMTHFR levels by MTHFR c.677C > T genotype. We further investigated whether mMTHFR mitigates the effect of smoking on long interspersed nuclear element (LINE-1) methylation in these tissues. METHODS DNA extracted from medial and lateral tissues of 26 infants with nonsyndromic cleft lip with or without cleft palate (nsCL/P) was bisulfite converted and mMTHFR was measured on a pyrosequenser. LINE-1 methylation and MTHFR c.677C > T genotype data were obtained in our previous study. RESULTS There was no substantial difference in mMTHFR (p = .733) and LINE-1 (p = .148) between the two tissues. mMTHFR was not influenced by MTHFR c.677C > T genotype, but there was suggestive evidence that the difference was larger among infants exposed to maternal smoking compared to nonexposed. LINE-1 methylation differences were significant (p = .025) in infants born to nonsmoking mothers, but this was not apparent (p = .872) in infants born to mothers who smoked. Our Pearson's correlation analysis suggested a weak inverse association between mMTHFR and LINE-1 (r = -.179, p = .381). CONCLUSION Our preliminary observation of differences in patterns of mMTHFR levels in lip tissue suggests the interplay of gene and environment in the establishment of methylation in tissues at both sides of cleft lip. This requires investigation in a larger cohort, integrated with metabolic assessment.
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Affiliation(s)
- Mohammad Faisal J Khan
- Department of Neuroscience and Rehabilitation, Section of Medical Biochemistry, Molecular Biology and Genetics, University of Ferrara, Ferrara, Italy
| | - Julian Little
- School of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada
| | - Peter A Mossey
- Craniofacial Development at the World Health Organization-Collaborating Centre for Oral and Craniofacial Research, Dental Hospital and School, University of Dundee, Dundee, Scotland, United Kingdom
| | - Azeez Butali
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, Iowa, USA
| | - Luca Autelitano
- Smile House, Operation Smile, Regional Centre for Orofacial Clefts and Craniofacial Anomalies, Department of Cranio-Maxillo-Facial Surgery, San Paolo Hospital, University of Milan, Milan, Italy
| | - Maria C Meazzini
- Smile House, Operation Smile, Regional Centre for Orofacial Clefts and Craniofacial Anomalies, Department of Cranio-Maxillo-Facial Surgery, San Paolo Hospital, University of Milan, Milan, Italy
| | - Michele Rubini
- Department of Neuroscience and Rehabilitation, Section of Medical Biochemistry, Molecular Biology and Genetics, University of Ferrara, Ferrara, Italy
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Rotondo JC, Lanzillotti C, Mazziotta C, Tognon M, Martini F. Epigenetics of Male Infertility: The Role of DNA Methylation. Front Cell Dev Biol 2021; 9:689624. [PMID: 34368137 PMCID: PMC8339558 DOI: 10.3389/fcell.2021.689624] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 06/17/2021] [Indexed: 12/18/2022] Open
Abstract
In recent years, a number of studies focused on the role of epigenetics, including DNA methylation, in spermatogenesis and male infertility. We aimed to provide an overview of the knowledge concerning the gene and genome methylation and its regulation during spermatogenesis, specifically in the context of male infertility etiopathogenesis. Overall, the findings support the hypothesis that sperm DNA methylation is associated with sperm alterations and infertility. Several genes have been found to be differentially methylated in relation to impaired spermatogenesis and/or reproductive dysfunction. Particularly, DNA methylation defects of MEST and H19 within imprinted genes and MTHFR within non-imprinted genes have been repeatedly linked with male infertility. A deep knowledge of sperm DNA methylation status in association with reduced reproductive potential could improve the development of novel diagnostic tools for this disease. Further studies are needed to better elucidate the mechanisms affecting methylation in sperm and their impact on male infertility.
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Affiliation(s)
- John Charles Rotondo
- Laboratories of Cell Biology and Molecular Genetics, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Carmen Lanzillotti
- Laboratories of Cell Biology and Molecular Genetics, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Chiara Mazziotta
- Laboratories of Cell Biology and Molecular Genetics, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Mauro Tognon
- Laboratories of Cell Biology and Molecular Genetics, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Fernanda Martini
- Laboratories of Cell Biology and Molecular Genetics, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
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Shaker MM, Shalabi TA, Amr KS. Correlation of methylation status in MTHFR promoter region with recurrent pregnancy loss. J Genet Eng Biotechnol 2021; 19:44. [PMID: 33751263 PMCID: PMC7984131 DOI: 10.1186/s43141-021-00147-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 03/12/2021] [Indexed: 12/16/2022]
Abstract
Background DNA methylation is an epigenetic process for modifying transcription factors in various genes. Methylenetetrahydrofolate reductase (MTHFR) stimulates synthesis of methyl radical in the homocysteine cycle and delivers methyl groups needed in DNA methylation. Furthermore, numerous studies have linked gene polymorphisms of this enzyme with a larger risk of recurrent pregnancy loss (RPL), yet scarce information is available concerning the association between epigenetic deviations in this gene and RPL. Hypermethylation at precise DNA sequences can function as biomarkers for a diversity of diseases. We aimed by this study to evaluate the methylation status of the promoter region of MTHFR gene in women with RPL compared to healthy fertile women. It is a case–control study. Hundred RPL patients and hundred healthy fertile women with no history of RPL as controls were recruited. MTHFR C677T was assessed by polymerase chain reaction-restriction fragment length polymorphism (RFLP). Quantitative evaluation of DNA methylation was performed by high-resolution melt analysis by real-time PCR. Results The median of percentage of MTHFR promoter methylation in RPL cases was 6.45 [0.74–100] vs. controls was 4.50 [0.60–91.7], P value < 0.001. In the case group, 57 hypermethylated and 43 normo-methylated among RPL patients vs. 40 hypermethylated and 60 normo-methylated among controls, P< 0.005. Frequency of T allele in C677T MTHFR gene among RPL patients was 29% vs. 23% among the control group; C allele vs. T allele: odds ratio (OR) = 1.367 (95% confidence interval (CI) 0.725–2.581). Conclusion Findings suggested a significant association between hypermethylation of the MTHFR promoter region in RPL patients compared to healthy fertile women.
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Affiliation(s)
- Mai Mahmoud Shaker
- Prenatal and Fetal Medicine Department, Human Genetics and Genome Research Division, National Research Centre, 33 El Buhooth St, Dokki, Cairo, Egypt.
| | - Taghreed Abdelmoniem Shalabi
- Prenatal and Fetal Medicine Department, Human Genetics and Genome Research Division, National Research Centre, 33 El Buhooth St, Dokki, Cairo, Egypt
| | - Khalda Said Amr
- Medical Molecular Genetics Department, Human Genetics and Genome Research Division, National Research Centre, 33 El Buhooth St, Dokki, Cairo, Egypt
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Kaur L, Puri M, Pal Sachdeva M, Mishra J, Nava Saraswathy K. Maternal one carbon metabolism and interleukin-10 &-17 synergistically influence the mode of delivery in women with Early Onset Pre-Eclampsia. Pregnancy Hypertens 2021; 24:79-89. [PMID: 33765603 DOI: 10.1016/j.preghy.2021.02.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 02/24/2021] [Accepted: 02/25/2021] [Indexed: 11/19/2022]
Abstract
OBJECTIVE Studies on One Carbon Metabolism (OCM), Interleukins-10 &-17 (IL-10/-17) & βhCG in pre-eclampsia and its delivery outcome (preterm birth) reveal contradictory results, attributed to clinical heterogeneity (early/late onset pre-eclampsia) or preterm/term birth. Disturbed OCM also influences IL-10 &-17 during pregnancy. We sought to investigate the synergism between OCM and IL-10/-17 mediated immune-regulation through βhCG in Early onset pre-eclampsia (EO-PE) patients, delivering preterm, among North Indian women. STUDY DESIGN Case-control study with a total of 399 pregnant women (EO-PE delivering preterm = 199; Normotensives delivering at term = 200). Maternal genotypes & biochemical estimations along with fetal genotypes on subset (n = 72) pertaining to OCM and IL-10/-17 regulation were assessed. MAIN OUTCOME MEASURES Association of 1) maternal plasma levels with EO-PE 2) maternal and fetal genotypes with EO-PE. 3) Effect of Hyper-homocysteinemia (surrogate of disturbed OCM) on differential immune regulation (IL10,-17, βhCG) in EO-PE and mode of delivery. RESULTS Hyper-homocysteinemia posed an increased risk of three folds for EO-PE. Both, folate and B12 deficiencies were associated with elevated homocysteine in EO-PE. Further, MTHFR 677TT homozygotes was present only in EO-PE indicating its detrimental role. However, maternal IL17-197AA genotype showed decreased risk for EO-PE. Furthermore, elevated maternal plasma IL-17 along with elevated IL-10 & βhCG were observed in EO-PE. Taken together, altered homocysteine metabolism was associated with high IL10 in EO-PE; and was more pronounced in spontaneous vaginal deliveries as compared to induced/caesarean section deliveries. CONCLUSIONS We report homocysteine mediated IL-10 &17 dysregulation and its influence on mode of delivery in EO-PE, possibly through initiation of cervical ripening. Further, these could serve potential biomarkers of EO-PE & its delivery outcome among vulnerable populations with similar nutritional & genetic predispositions.
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Affiliation(s)
- Lovejeet Kaur
- Translational Health Science and Technology Institute, Faridabad, Haryana, India.
| | - Manju Puri
- Department of Obstetrics and Gynecology, Lady Hardinge Medical College, Delhi, India
| | | | - Jyoti Mishra
- Department of Anthropology, University of Delhi, Delhi, India
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Diniz TG, Silva AS, Dos Santos Nunes MK, Ribeiro MD, Filho JM, do Nascimento RAF, Gomes CNAP, Evangelista IWDQ, de Oliveira NFP, Persuhn DC. Physical Activity Level Influences MTHFR Gene Methylation Profile in Diabetic Patients. Front Physiol 2021; 11:618672. [PMID: 33510650 PMCID: PMC7835660 DOI: 10.3389/fphys.2020.618672] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Accepted: 11/24/2020] [Indexed: 12/13/2022] Open
Abstract
Introduction MTHFR methylation status is associated with microvascular complications in diabetes, but the factors influencing this profile remain unknown. Objective The aim of this study was to evaluate the influence of physical activity level and nutritional status on the methylation profile of the MTHFR gene in patients with type 2 diabetes mellitus (T2DM). Methods A total of 111 patients, 43 men and 68 women diagnosed with DM (7.0 ± 2.3 years), answered the International Physical Activity Questionnaire (IPAQ) and underwent blood collection for biochemical analysis, DNA extraction, and MTHFR gene methylation profile determination. Result The comparison of the methylation pattern showed that the partially methylated profile predominates in the insufficiently active group (85%), which does not occur in the sufficiently active group (54%) (p = 0.012). No differences were found in the nutritional status comparison. Logistic regression including overweight, waist circumference, gender, age, time of DM, hypertension, dyslipidemia, smoking, alcoholism, and family DM revealed that the association of the level of physical activity with methylation profile proved to be independent of these confounding variables. Considering the partially methylated profile as a result, being physically inactive favors the partially methylated MTHFR pattern in patients with DM. Conclusion We concluded that insufficient physical activity is associated with partially methylated pattern of MTHFR promoter.
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Affiliation(s)
- Tainá Gomes Diniz
- Post-Graduate Program in Nutrition Science, Federal University of Paraiba, Joao Pessoa, Brazil
| | - Alexandre Sérgio Silva
- Department of Physical Education, Federal University of Paraiba (UFPB), Joao Pessoa, Brazil
| | - Mayara Karla Dos Santos Nunes
- Post-Graduation Program in Development and Technological Innovation of Medicines (DITM), Federal University of Paraiba, Joao Pessoa, Brazil
| | - Mateus Duarte Ribeiro
- Post-Graduation Program in Physical Education, Federal University of Paraiba, Joao Pessoa, Brazil
| | - João Modesto Filho
- Department of Internal Medicine, Federal University of Paraiba, Joao Pessoa, Brazil
| | | | | | | | | | - Darlene Camati Persuhn
- Department of Molecular Biology and Post-Graduation Program in Nutrition Science, Federal University of Paraiba, Joao Pessoa, Brazil
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Chandiok K, Thakur MK, Garg PR, Devi NK, Saraswathy KN. Surveillance analysis of the effects of dietary and lifestyle determinants on plasma homocysteine levels by combining the MTHFR C677T polymorphism in a rural North Indian population. Meta Gene 2020. [DOI: 10.1016/j.mgene.2020.100742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Pi L, Zhang Z, Gu Y, Wang X, Wang J, Xu J, Liu J, Zhang X, Du J. DNA methylation profiling in recurrent miscarriage. PeerJ 2020; 8:e8196. [PMID: 31938574 PMCID: PMC6953351 DOI: 10.7717/peerj.8196] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 11/12/2019] [Indexed: 12/01/2022] Open
Abstract
Recurrent miscarriage (RM) is a complex clinical problem. However, specific diagnostic biomarkers and candidate regulatory targets have not yet been identified. To explore RM-related biological markers and processes, we performed a genome-wide DNA methylation analysis using the Illumina Infinium HumanMethylation450 array platform. Methylation variable positions and differentially methylated regions (DMRs) were selected using the Limma package in R language. Thereafter, gene ontology (GO) enrichment analysis and pathway enrichment analysis were performed on these DMRs. A total of 1,799 DMRs were filtered out between patients with RM and healthy pregnant women. The GO terms were mainly related to system development, plasma membrane part, and sequence-specific DNA binding, while the enriched pathways included cell adhesion molecules, type I diabetes mellitus, and ECM–receptor interactions. In addition, genes, including ABR, ALCAM, HLA-E, HLA-G, and ISG15, were obtained. These genes may be potential candidates for diagnostic biomarkers and possible regulatory targets in RM. We then detected the mRNA expression levels of the candidate genes. The mRNA expression levels of the candidate genes in the RM group were significantly higher than those in the control group. However, additional research is still required to confirm their potential roles in the occurrence of RM.
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Affiliation(s)
- Li Pi
- NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Medical School, Fudan University, Shanghai, China
| | - Zhaofeng Zhang
- NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Medical School, Fudan University, Shanghai, China
| | - Yan Gu
- The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Xinyue Wang
- NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Medical School, Fudan University, Shanghai, China
| | - Jianmei Wang
- The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Jianhua Xu
- NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Medical School, Fudan University, Shanghai, China
| | - Junwei Liu
- NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Medical School, Fudan University, Shanghai, China
| | - Xuan Zhang
- NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Medical School, Fudan University, Shanghai, China
| | - Jing Du
- NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Medical School, Fudan University, Shanghai, China
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Mishra J, Tomar A, Puri M, Jain A, Saraswathy KN. Trends of folate, vitamin B 12 , and homocysteine levels in different trimesters of pregnancy and pregnancy outcomes. Am J Hum Biol 2020; 32:e23388. [PMID: 31898383 DOI: 10.1002/ajhb.23388] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 11/09/2019] [Accepted: 12/16/2019] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVE To evaluate the effect of folate and vitamin B12 levels on pregnancy progression and outcomes. METHODS The present study is a prospective follow up study of 100 pregnant women. Biochemical investigations (plasma homocysteine, folate, and vitamin B12 levels) were performed on all pregnant women in first, second, and third trimesters. Nonparametric tests were used to compare the differences in median levels and odds ratio analysis for the assessment of the risk between the selected biomarkers and adverse pregnancy progression and outcomes. RESULTS The pregnant women at their first antenatal care visit were found to be predominantly folate replete (97%) and vitamin B12 deficient (60%). Hyperhomocysteinemia in first and second trimesters was found to pose more than 3-fold increased risk for adverse pregnancy outcomes (P = .006 and .0002, respectively). Low birth weight (LBW) was found to be the most common adverse pregnancy outcome (52%), and was significantly associated with vitamin B12 deficiency in the first and second trimesters (82%, P < .0001; 71.4%, P = .04, respectively). CONCLUSION The vitamin B12 deficiency is more common among Indian pregnant women as compared to folate deficiency. Hyperhomocysteinemia is an independent risk factor for pregnancy complications. Vitamin B12 deficiency in first and second trimesters is associated with LBW babies.
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Affiliation(s)
- Jyoti Mishra
- Department of Anthropology, University of Delhi, Delhi, India
| | - Abhilasha Tomar
- Department of Obstetrics and Gynaecology, Lady Hardinge Medical College, Delhi, India
| | - Manju Puri
- Department of Obstetrics and Gynaecology, Lady Hardinge Medical College, Delhi, India
| | - Anju Jain
- Department of Biochemistry, Lady Hardinge Medical College, Delhi, India
| | - K N Saraswathy
- Department of Anthropology, University of Delhi, Delhi, India
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Benny P, Yamasato K, Yunits B, Zhu X, Ching T, Garmire LX, Berry MJ, Towner D. Maternal cardiovascular-related single nucleotide polymorphisms, genes, and pathways associated with early-onset preeclampsia. PLoS One 2019; 14:e0222672. [PMID: 31557190 PMCID: PMC6762142 DOI: 10.1371/journal.pone.0222672] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 09/04/2019] [Indexed: 12/26/2022] Open
Abstract
INTRODUCTION Preeclampsia is a medical condition complicated with hypertension and proteinuria during pregnancy. While preeclampsia affects approximately 5% of pregnancies, it remains without a cure. In addition, women who had preeclampsia during pregnancy have been reported to have an increased risk for cardiovascular disease later in life. However, the disease etiology and molecular mechanisms remain poorly understood. The paucity in the literature on preeclampsia associated maternal cardiovascular risk in different ethnic populations also present a need for more research. Therefore, the objective of this study was to identify cardiovascular/metabolic single nucleotide polymorphisms (SNPs), genes, and regulatory pathways associated with early-onset preeclampsia. MATERIALS AND METHODS We compared maternal DNAs from 31 women with early-onset preeclampsia with those from a control group of 29 women without preeclampsia who delivered full-term normal birthweight infants. Women with multiple gestations and/or known medical disorders associated with preeclampsia (pregestational diabetes, chronic hypertension, renal disease, hyperthyroidism, and lupus) were excluded. The MetaboChip genotyping array with approximately 197,000 SNPs associated with metabolic and cardiovascular traits was used. Single nucleotide polymorphism analysis was performed using the SNPAssoc program in R. The Truncated Product Method was used to identify significantly associated genes. Ingenuity Pathway Analysis and Ingenuity Causal Network Analysis were used to identify significantly associated disease processes and regulatory gene networks respectively. RESULTS The early-onset preeclampsia group included 45% Filipino, 26% White, 16% other Asian, and 13% Native Hawaiian and other Pacific Islanders, which did not differ from the control group. There were no SNPs associated with early-onset preeclampsia after correction for multiple comparisons. However, through gene-based tests, 68 genes and 23 cardiovascular disease-related processes were found to be significantly associated. Associated gene regulatory networks involved cellular movement, cardiovascular disease, and inflammatory disease. CONCLUSIONS Multiple cardiovascular genes and diseases demonstrate associations with early-onset preeclampsia. This unfolds new areas of research regarding the genetic determinants of early-onset preeclampsia and their relation to future cardiovascular disease.
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Affiliation(s)
- Paula Benny
- University of Hawaii Cancer Center, Honolulu, Hawai’i, United States of America
| | - Kelly Yamasato
- Department of Obstetrics, Gynecology, and Women’s Health, John A Burns School of Medicine, University of Hawaii at Manoa, Honolulu, Hawai’i, United States of America
| | - Breck Yunits
- University of Hawaii Cancer Center, Honolulu, Hawai’i, United States of America
| | - Xun Zhu
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, Honolulu, Hawai’i, United States of America
| | - Travers Ching
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, Honolulu, Hawai’i, United States of America
| | - Lana X. Garmire
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Marla J. Berry
- Department of Cell and Molecular Biology, John A Burns School of Medicine, University of Hawaii at Manoa, Honolulu, Hawai’i, United States of America
| | - Dena Towner
- Department of Obstetrics, Gynecology, and Women’s Health, John A Burns School of Medicine, University of Hawaii at Manoa, Honolulu, Hawai’i, United States of America
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