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Deng F, Lei J, Qiu J, Zhao C, Wang X, Li M, Sun M, Zhang M, Gao Q. DNA methylation landscape in pregnancy-induced hypertension: progress and challenges. Reprod Biol Endocrinol 2024; 22:77. [PMID: 38978060 PMCID: PMC11229300 DOI: 10.1186/s12958-024-01248-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Accepted: 06/24/2024] [Indexed: 07/10/2024] Open
Abstract
Gestational hypertension (PIH), especially pre-eclampsia (PE), is a common complication of pregnancy. This condition poses significant risks to the health of both the mother and the fetus. Emerging evidence suggests that epigenetic modifications, particularly DNA methylation, may play a role in initiating the earliest pathophysiology of PIH. This article describes the relationship between DNA methylation and placental trophoblast function, genes associated with the placental microenvironment, the placental vascular system, and maternal blood and vascular function, abnormalities of umbilical cord blood and vascular function in the onset and progression of PIH, as well as changes in DNA methylation in the progeny of PIH, in terms of maternal, fetal, and offspring. We also explore the latest research on DNA methylation-based early detection, diagnosis and potential therapeutic strategies for PIH. This will enable the field of DNA methylation research to continue to enhance our understanding of the epigenetic regulation of PIH genes and identify potential therapeutic targets.
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Affiliation(s)
- Fengying Deng
- Key Laboratory of Maternal & Fetal Medicine of National Health Commission of China, Shandong Provincial Maternal and Child Health Care Hospital Affiliated to Qingdao University, Jinan, 250014, China
- Institute for Fetology, the First Affiliated Hospital of Soochow University, Suzhou, 215006, P. R. China
| | - Jiahui Lei
- Key Laboratory of Maternal & Fetal Medicine of National Health Commission of China, Shandong Provincial Maternal and Child Health Care Hospital Affiliated to Qingdao University, Jinan, 250014, China
- Institute for Fetology, the First Affiliated Hospital of Soochow University, Suzhou, 215006, P. R. China
| | - Junlan Qiu
- Department of Oncology and Hematology, Suzhou Hospital, Affiliated Hospital of Medical School, Nanjing University, Suzhou, Jiangsu, 215153, P.R. China
| | - Chenxuan Zhao
- Key Laboratory of Maternal & Fetal Medicine of National Health Commission of China, Shandong Provincial Maternal and Child Health Care Hospital Affiliated to Qingdao University, Jinan, 250014, China
- Institute for Fetology, the First Affiliated Hospital of Soochow University, Suzhou, 215006, P. R. China
| | - Xietong Wang
- Key Laboratory of Maternal & Fetal Medicine of National Health Commission of China, Shandong Provincial Maternal and Child Health Care Hospital Affiliated to Qingdao University, Jinan, 250014, China
| | - Min Li
- Institute for Fetology, the First Affiliated Hospital of Soochow University, Suzhou, 215006, P. R. China
- Department of Obstetrics and Gynecology, the First Affiliated Hospital of Soochow University, Suzhou, 215006, P. R. China
| | - Miao Sun
- Key Laboratory of Maternal & Fetal Medicine of National Health Commission of China, Shandong Provincial Maternal and Child Health Care Hospital Affiliated to Qingdao University, Jinan, 250014, China.
- Institute for Fetology, the First Affiliated Hospital of Soochow University, Suzhou, 215006, P. R. China.
| | - Meihua Zhang
- Key Laboratory of Maternal & Fetal Medicine of National Health Commission of China, Shandong Provincial Maternal and Child Health Care Hospital Affiliated to Qingdao University, Jinan, 250014, China.
| | - Qinqin Gao
- Key Laboratory of Maternal & Fetal Medicine of National Health Commission of China, Shandong Provincial Maternal and Child Health Care Hospital Affiliated to Qingdao University, Jinan, 250014, China.
- Institute for Fetology, the First Affiliated Hospital of Soochow University, Suzhou, 215006, P. R. China.
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2
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Sun B, Reynolds KS, Garland MA, McMahon M, Saha SK, Zhou CJ. Epigenetic implications in maternal diabetes and metabolic syndrome-associated risk of orofacial clefts. Birth Defects Res 2023; 115:1835-1850. [PMID: 37497595 DOI: 10.1002/bdr2.2226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 06/12/2023] [Accepted: 07/07/2023] [Indexed: 07/28/2023]
Abstract
Orofacial clefts (OFCs) are one of the most common types of structural birth defects. The etiologies are complicated, involving with genetic, epigenetic, and environmental factors. Studies have found that maternal diabetes and metabolic syndrome are associated with a higher risk of OFCs in offspring. Metabolic syndrome is a clustering of several disease risk factors, including hyperglycemia, dyslipidemia, obesity, and hypertension. Metabolic disease during pregnancy can increase risk of adverse outcomes and significantly influence fetal development, including orofacial formation and fusion. An altered metabolic state may contribute to developmental disorders or congenital defects including OFCs, potentially through epigenetic modulations, such as histone modification, DNA methylation, and noncoding RNA expression to alter activities of critical morphogenetic signaling or related developmental genes. This review summarizes the currently available evidence and underlying mechanisms of how the maternal metabolic syndrome is associated with OFCs in mostly human and some animal studies. It may provide a better understanding of the interactions between intrauterine metabolic status and fetal orofacial development which might be applied toward prevention and treatments of OFCs.
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Affiliation(s)
- Bo Sun
- Department of Biochemistry and Molecular Medicine, University of California at Davis, School of Medicine, Sacramento, California, USA
- Institute for Pediatric Regenerative Medicine of Shriners Hospitals for Children, University of California at Davis, School of Medicine, Sacramento, California, USA
| | - Kurt S Reynolds
- Department of Biochemistry and Molecular Medicine, University of California at Davis, School of Medicine, Sacramento, California, USA
- Institute for Pediatric Regenerative Medicine of Shriners Hospitals for Children, University of California at Davis, School of Medicine, Sacramento, California, USA
| | - Michael A Garland
- Department of Biochemistry and Molecular Medicine, University of California at Davis, School of Medicine, Sacramento, California, USA
- Institute for Pediatric Regenerative Medicine of Shriners Hospitals for Children, University of California at Davis, School of Medicine, Sacramento, California, USA
| | - Moira McMahon
- Department of Biochemistry and Molecular Medicine, University of California at Davis, School of Medicine, Sacramento, California, USA
- Institute for Pediatric Regenerative Medicine of Shriners Hospitals for Children, University of California at Davis, School of Medicine, Sacramento, California, USA
| | - Subbroto K Saha
- Department of Biochemistry and Molecular Medicine, University of California at Davis, School of Medicine, Sacramento, California, USA
- Institute for Pediatric Regenerative Medicine of Shriners Hospitals for Children, University of California at Davis, School of Medicine, Sacramento, California, USA
| | - Chengji J Zhou
- Department of Biochemistry and Molecular Medicine, University of California at Davis, School of Medicine, Sacramento, California, USA
- Institute for Pediatric Regenerative Medicine of Shriners Hospitals for Children, University of California at Davis, School of Medicine, Sacramento, California, USA
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Ning H, Tao H. Small RNA sequencing of exosomal microRNAs reveals differential expression of microRNAs in preeclampsia. Medicine (Baltimore) 2023; 102:e35597. [PMID: 37861520 PMCID: PMC10589583 DOI: 10.1097/md.0000000000035597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Accepted: 09/20/2023] [Indexed: 10/21/2023] Open
Abstract
Preeclampsia (PE) is one of the most common hypertensive disorders of pregnancy. It is a dangerous condition with a high mortality rate in mothers and fetuses and is associated with a lack of early diagnosis and effective treatment. While the etiology of the disease is complex and obscure, it is now clear that the placenta is central to disease progression. Exosomal microRNAs (miRNAs) are possible mediators that regulate placenta-related physiological and pathological processes. Placental mesenchymal stem cells have considerable potential to help us understand the pathogenesis and treatment of pregnancy-related diseases. Here, we investigate the exosomal miRNA profiles of human placenta-derived mesenchymal stem cells between healthy pregnant women and those with PE. We performed small RNA sequencing to obtain miRNA profiles, and conducted enrichment analysis of the miRNA target genes to identify differentially expressed miRNAs associated with PE. Overall, we detected 1795 miRNAs; among them, 206 were differentially expressed in women with PE, including 35 upregulated and 171 downregulated miRNAs, when compared with healthy pregnant women. Moreover, we identified possible functions and pathways associated with PE, including angiogenesis, cell proliferation, migration and invasion, and the coagulation-fibrinolysis balance. Eventually, we proposed hsa-miR-675-5p, hsa-miR-3614-5p, and hsa-miR-615-5p as potential regulators of the pathogenesis of PE, and constructed a miRNA-target gene network. Our study identifies possible candidate biomarkers for the diagnosis of PE, and introduces a new direction for further understanding the pathogenesis of PE.
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Affiliation(s)
- Hui Ning
- Department of Obstetrics, Qingdao Municipal Hospital, Qingdao, China
| | - Hong Tao
- Department of Obstetrics, Qingdao Municipal Hospital, Qingdao, China
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Liu W, Yang X, Mao Z, Du Y, Lassiter C, AlAkwaa FM, Benny PA, Garmire LX. Severe preeclampsia is not associated with significant DNA methylation changes but cell proportion changes in the cord blood - caution on the importance of confounding adjustment. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.08.31.23294898. [PMID: 37693517 PMCID: PMC10491383 DOI: 10.1101/2023.08.31.23294898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
Epigenome-wide DNA methylation analysis (EWAS) is an important approach to identify biomarkers for early disease detection and prognosis prediction, yet its results could be confounded by other factors such as cell-type heterogeneity and patient characteristics. In this study, we address the importance of confounding adjustment by examining DNA methylation patterns in cord blood exposed to severe preeclampsia (PE), a prevalent and potentially fatal pregnancy complication. Without such adjustment, a misleading global hypomethylation pattern is obtained. However, after adjusting cell type proportions and patient clinical characteristics, most of the so-called significant CpG methylation changes associated with severe PE disappear. Rather, the major effect of PE on cord blood is through the proportion changes in different cell types. These results are validated using a previously published cord blood DNA methylation dataset, where global hypomethylation pattern was also wrongfully obtained without confounding adjustment. Additionally, several cell types significantly change as gestation progress (eg. granulocyte, nRBC, CD4T, and B cells), further confirming the importance of cell type adjustment in EWAS study of cord blood tissues. Our study urges the community to perform confounding adjustments in EWAS studies, based on cell type heterogeneity and other patient characteristics.
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Affiliation(s)
- Wenting Liu
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI
| | - Xiaotong Yang
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI
| | - Zhixin Mao
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI
| | - Yuheng Du
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI
| | | | - Fadhl M AlAkwaa
- Department of Neurology, University of Michigan, Ann Arbor, MI
| | - Paula A Benny
- University of Hawaii Cancer Center, Epidemiology, Honolulu, HI
| | - Lana X Garmire
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI
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Wei X, Zhou S, Liao L, Liu M, Gao Y, Yin Y, Xu Q, Zhou R. Comprehensive analysis of transcriptomic profiling of 5-methylcytosin modification in placentas from preeclampsia and normotensive pregnancies. FASEB J 2023; 37:e22751. [PMID: 36692426 DOI: 10.1096/fj.202201248r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 11/09/2022] [Accepted: 12/21/2022] [Indexed: 01/25/2023]
Abstract
Increasing evidence suggests that RNA m5C modification and its regulators have been confirmed to be associated with the pathogenesis of many diseases. However, the distribution and biological functions of m5C in mRNAs of placental tissues remain unknown. we collected placentae from normotensive pregnancies (CTR) and preeclampsia patients (PE) to analyze the transcriptomic profiling of m5C RNA methylation through m5C RNA immunoprecipitation (UMI-MeRIP-Seq). we discovered that overall m5C methylation peaks were decreased in placental tissues from PE patients. And, 2844 aberrant m5C peaks were identified, of which respectively 1304 m5C peaks were upregulated and 1540 peaks were downregulated. The distribution of m5C peaks were mainly located in CDS (coding sequences) regions in placental tissues of both groups, but compared with the CTR group, the m5C peak in PE group before the stop code of CDS was significantly increased and even higher than the peak value after start code in CDS. Differentially methylated genes were mainly enriched in MAPK/cAMP signaling pathway. Moreover, the up-regulated genes with hypermethylated modification were enriched in the processes of hypoxia, inflammation/immune response. Finally, through analyzing the mRNA expression levels of m5C RNA methylation regulators, we found only DNMT3B and TET3 were significantly upregulated in PE samples than in control group. And they are not only negatively correlated with each other, but also closely related to those differentially expressed genes modified by differential methylation.Our findings provide new insights regarding alterations of m5C RNA modification into the pathogenic mechanisms of PE.
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Affiliation(s)
- Xiaohong Wei
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children, NHC Key Laboratory of Chronobiology, Sichuan University, Ministry of Education, Chengdu, China
| | - Shengping Zhou
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children, NHC Key Laboratory of Chronobiology, Sichuan University, Ministry of Education, Chengdu, China
| | - Lingyun Liao
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children, NHC Key Laboratory of Chronobiology, Sichuan University, Ministry of Education, Chengdu, China
| | - Min Liu
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children, NHC Key Laboratory of Chronobiology, Sichuan University, Ministry of Education, Chengdu, China
| | - Yijie Gao
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children, NHC Key Laboratory of Chronobiology, Sichuan University, Ministry of Education, Chengdu, China
| | - Yangxue Yin
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children, NHC Key Laboratory of Chronobiology, Sichuan University, Ministry of Education, Chengdu, China
| | - Qin Xu
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children, NHC Key Laboratory of Chronobiology, Sichuan University, Ministry of Education, Chengdu, China
| | - Rong Zhou
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children, NHC Key Laboratory of Chronobiology, Sichuan University, Ministry of Education, Chengdu, China
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6
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Hypertensive disorders of pregnancy share common cfDNA methylation profiles. Sci Rep 2022; 12:19837. [PMID: 36400896 PMCID: PMC9674847 DOI: 10.1038/s41598-022-24348-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 11/14/2022] [Indexed: 11/19/2022] Open
Abstract
Hypertensive disorders of pregnancy (HDP) contribute substantially to perinatal morbidity and mortality. Epigenetic changes point towards cardio-metabolic dysregulation for these vascular disorders. In early pregnancy, epigenetic changes using cell free DNA (cfDNA) are largely unexplored. We aimed to investigate these in HDP between 11 and 14 weeks of gestation by analysis of cfDNA methylation profiles in patients with hypertensive disorders. We identified patients without chronic hypertension but with subsequent development of preeclampsia (PE) (n = 11), with chronic hypertension (HT) but without PE development (n = 14), and lacking both PE and HT (n = 422). We matched patients according to PE risk factors into three groups (n = 5 each group): (1) PE: no HT but PE development, (2) HT: chronic hypertension but no PE and (3) Control: no PE or HT. We successfully optimized our cfDNA isolation process prior to whole genome bisulfite sequencing. Analysis of cfDNA methylation changes indicate a common predisposition in PE and HT groups, chiefly of maternal origin. Assessment of significant differentially methylated regions and annotated genes point towards a common cardiovascular predisposition in preeclampsia and hypertension groups in the first trimester. We postulate the pivotal role of the maternal cardiovascular system in HDP, which is already evident in the first trimester.
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7
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Aging, inflammation and DNA damage in the somatic testicular niche with idiopathic germ cell aplasia. Nat Commun 2021; 12:5205. [PMID: 34471128 PMCID: PMC8410861 DOI: 10.1038/s41467-021-25544-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 08/18/2021] [Indexed: 12/18/2022] Open
Abstract
Molecular mechanisms associated with human germ cell aplasia in infertile men remain undefined. Here we perform single-cell transcriptome profiling to highlight differentially expressed genes and pathways in each somatic cell type in testes of men with idiopathic germ cell aplasia. We identify immaturity of Leydig cells, chronic tissue inflammation, fibrosis, and senescence phenotype of the somatic cells, as well markers of chronic inflammation in the blood. We find that deregulated expression of parentally imprinted genes in myoid and immature Leydig cells, with relevant changes in the ratio of Lamin A/C transcripts and an active DNA damage response in Leydig and peritubular myoid cells are also indicative of senescence of the testicular niche. This study offers molecular insights into the pathogenesis of idiopathic germ cell aplasia. Molecular mechanisms associated with human germ cell aplasia in infertile men remain undefined. Here the authors perform single-cell transcriptome profiling to highlight differentially expressed genes and pathways in each somatic cell type in testes of men with idiopathic germ cell aplasia.
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Worsham W, Dalton S, Bilder DA. The Prenatal Hormone Milieu in Autism Spectrum Disorder. Front Psychiatry 2021; 12:655438. [PMID: 34276434 PMCID: PMC8280339 DOI: 10.3389/fpsyt.2021.655438] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 05/17/2021] [Indexed: 01/03/2023] Open
Abstract
Though the etiology of autism spectrum disorder (ASD) remains largely unknown, recent findings suggest that hormone dysregulation within the prenatal environment, in conjunction with genetic factors, may alter fetal neurodevelopment. Early emphasis has been placed on the potential role of in utero exposure to androgens, particularly testosterone, to theorize ASD as the manifestation of an "extreme male brain." The relationship between autism risk and obstetric conditions associated with inflammation and steroid dysregulation merits a much broader understanding of the in utero steroid environment and its potential influence on fetal neuroendocrine development. The exploration of hormone dysregulation in the prenatal environment and ASD development builds upon prior research publishing associations with obstetric conditions and ASD risk. The insight gained may be applied to the development of chronic adult metabolic diseases that share prenatal risk factors with ASD. Future research directions will also be discussed.
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Affiliation(s)
- Whitney Worsham
- University of Utah School of Medicine, Salt Lake City, UT, United States
| | - Susan Dalton
- Department of Obstetrics and Gynecology, University of Utah, Salt Lake City, UT, United States
| | - Deborah A Bilder
- Division of Child & Adolescent Psychiatry, Department of Psychiatry, University of Utah, Salt Lake City, UT, United States
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Guo F, Zhang B, Yang H, Fu Y, Wang Y, Huang J, Cheng M, Li X, Shen Z, Li L, He P, Xiang AP, Wang S, Zhang H. Systemic transcriptome comparison between early- And late-onset pre-eclampsia shows distinct pathology and novel biomarkers. Cell Prolif 2020; 54:e12968. [PMID: 33332660 PMCID: PMC7848957 DOI: 10.1111/cpr.12968] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 11/24/2020] [Accepted: 11/30/2020] [Indexed: 12/14/2022] Open
Abstract
Objectives Pre‐eclampsia is a leading cause of morbidity and mortality during pregnancy. Although the two forms of this disorder, early‐ (EOPE) and late‐onset of pre‐eclampsia (LOPE) are different, the underlying pathology remains elusive. We aim to unravel the difference and to identify novel biomarkers for EOPE and LOPE. Materials and Methods A complete comparison of both placental and peripheral blood transcriptomes was performed to investigate the pathology of pre‐eclampsia. Single‐cell transcriptomics of the maternal‐fetal interface were integrated to identify novel biomarkers for EOPE and LOPE which were further verified at protein or mRNA level in patients. Results We found that the transcriptomes of placentae from EOPE, but not LOPE, were significantly different from their respective controls. Conversely, the transcriptomes of peripheral blood from LOPE were more different from their controls than EOPE. Importantly, we identified that several classical biomarkers of pre‐eclampsia were expressed specifically in extravillous trophoblast and syncytiotrophoblast and only upregulated in EOPE, suggesting they should not be applied to all pre‐eclampsia patients in general. We further identified novel biomarkers for EOPE and LOPE from differentially expressed genes (DEGs) of placental and peripheral blood, respectively. The new biomarkers EBI3, IGF2, ORMDL3, GATA2 and KIR2DL4 were experimentally verified with patient blood samples. Conclusion Our data demonstrate distinct pathology of EOPE and LOPE, and uncover new biomarkers that can be applied in diagnosis for pre‐eclampsia.
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Affiliation(s)
- Fang Guo
- Department of Obstetrics, First Affiliated Hospital of Jinan University, Guangzhou, China.,Department of Obstetrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.,Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, China
| | - Bao Zhang
- Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, China.,The Department of Histology and Embryology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Hao Yang
- Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, China.,The Department of Histology and Embryology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Yixi Fu
- Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, China.,The Department of Histology and Embryology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Yaning Wang
- Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, China.,The Department of Histology and Embryology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Jianming Huang
- Department of Obstetrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Mi Cheng
- Department of Obstetrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Xiaobo Li
- Core Facilities for Medical Science, Sun Yat-sen University, Guangzhou, China
| | - Zhuojian Shen
- Department of Thoracic Surgery, Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, China
| | - Li Li
- Department of Obstetrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Ping He
- Department of Obstetrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Andy Peng Xiang
- Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, China
| | - Shuaiyu Wang
- Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, China.,The Department of Histology and Embryology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Hongbo Zhang
- Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, China.,The Department of Histology and Embryology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
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10
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The effect of blastomere loss during frozen embryo transfer on the transcriptome of offspring's umbilical cord blood. Mol Biol Rep 2020; 47:8407-8417. [PMID: 33068229 DOI: 10.1007/s11033-020-05878-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Accepted: 09/29/2020] [Indexed: 10/23/2022]
Abstract
Blastomere loss is a common issue during frozen-thawed embryo transfer (FET). Our previous study showed that blastomere loss was associated with an increased risk of small-for-gestational-age (SGA) neonates. The present study assessed the impact of blastomere loss during cryopreservation by comparing the mRNA profiles of umbilical cord blood of FET offspring from the prospective cohort study. Umbilical cord blood samples were collected from 48 neonates, including 12 from the loss group, 11 from the intact group, and 25 from the matched spontaneous pregnancy group. RNA-seq technology was used to compare the global gene expression profiles of the lymphocytes. Then, we used TopHat software to map the reads and quantitative real-time PCR to validate some important differentially expressed genes (DEGs). We identified 92 DEGs between the loss group and the spontaneous pregnancy group, including IGF2 and H19. Ingenuity Pathway Analysis (IPA) showed that the DEGs were most affected in the blastomere loss group. Downstream analysis also predicted the activation of organismal death pathways. In conclusions, our pilot study sheds light on the mechanism underlying how human blastomere loss may affect offspring at the gene expression level. These conclusions are, however, only suggestive, as the current study is based on a very limited sample size and type or nature of biological samples. Additional studies with larger sample sizes and independent experiments with placental samples should be conducted to verify these findings.
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11
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Barcelona V, Wang Z, Crusto C, Hui Q, Sun YV, Taylor JY. High blood pressure in pregnancy, DNA methylation, and later blood pressure in African American women enrolled in the InterGEN Study. Birth 2020; 47:290-298. [PMID: 33448462 PMCID: PMC7876779 DOI: 10.1111/birt.12501] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 07/24/2020] [Accepted: 07/27/2020] [Indexed: 12/17/2022]
Abstract
BACKGROUND Few studies have examined the effects of high blood pressure (BP) in pregnancy, preeclampsia, or eclampsia on later BP, and the epigenetics of this phenomenon is similarly poorly understood, especially among African Americans. The purpose of this study was to examine the association between high BP in pregnancy, epigenomics, and later BP in African American women in the InterGEN Study (n = 250). METHODS In cross-sectional analyses, regression and linear mixed-effects models were employed to examine the effects of high BP in pregnancy on: (a) epigenetic associations (DNA methylation) and (b) BP 3-5 years after birth. The 850K Illumina EPIC BeadChip was used for evaluating epigenome-wide DNA methylation. High BP in pregnancy, preeclampsia, or eclampsia was self-reported by women, and BP was measured 3-5 years after birth, per JNC-7 guidelines. DNA methylation and clinical BP were the main outcomes. RESULTS Mean age of enrolled women was 31.2 years, 21.8% were smokers, 58% had some college or higher education, 46.6% reported an annual income <$15 000, and 13.6% reported high BP in pregnancy. After adjustment for obesity, smoking, and age, women with a history of high BP in pregnancy had significantly higher BP than those who did not report this complication (5.39 ± 2.4 mm Hg, P = .030). Epigenome-wide analysis revealed no significant sites after multiple testing correction. CONCLUSIONS We observed a small, but clinically significant, increase in BP in women who reported high BP in pregnancy 3-5 years after that pregnancy. Future studies with larger sample sizes should examine epigenetic contributions to this finding.
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Affiliation(s)
| | - Zeyuan Wang
- Emory University Rollins School of Public Health, 201 Dowman Drive, Atlanta, Georgia 30322
| | - Cindy Crusto
- Yale University School of Medicine, 300 George St, New Haven, CT, 06511, University of Pretoria, South Africa
| | - Qin Hui
- Emory University Rollins School of Public Health, 201 Dowman Drive, Atlanta, Georgia 30322
| | - Yan V. Sun
- Emory University Rollins School of Public Health, 201 Dowman Drive, Atlanta, Georgia 30322
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Differences in DNA methylation of insulin-like growth factor 2 and cadherin 13 in patients with preeclampsia. Pregnancy Hypertens 2020; 19:150-158. [PMID: 32007784 DOI: 10.1016/j.preghy.2020.01.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 01/07/2020] [Accepted: 01/10/2020] [Indexed: 01/13/2023]
Abstract
OBJECTIVES In a previous mass spectrometry study of our research group, 25 proteins were found to be differentially expressed in cerebrospinal fluid of patients with preeclampsia compared to controls. The objective of the current study was to investigate DNA methylation of the genes encoding for the former mentioned proteins in an independent dataset. STUDY DESIGN In a nested case-control study of the Rotterdam Periconceptional Cohort, placental tissue, umbilical cord white blood cells and human umbilical vein endothelial cells (HUVEC) were obtained of 13 patients with early-onset preeclampsia, 16 patients with late-onset preeclampsia and 83 normotensive controls (27 patients with fetal growth restriction, 20 patients with spontaneous preterm birth and 36 uncomplicated pregnancies). DNA methylation of 783 CpGs in regions of 25 genes was measured. MAIN OUTCOME MEASURES DNA methylation of selected candidate genes in early- and late-onset preeclampsia compared to fetal growth restriction, spontaneous preterm birth and uncomplicated controls. RESULTS From the 783 CpGs of the 25 selected genes, 15 CpGs were differentially methylated between early-onset preeclampsia and spontaneous preterm birth (3.80 E-5 ≤ p ≤ 0.036). Four CpGs were differentially methylated between early-onset preeclampsia and fetal growth restriction (0.0002 ≤ p ≤ 0.037) and 13 CpGs were differentially methylated between early onset preeclampsia and uncomplicated controls (0.0001 ≤ p ≤ 0.04). CONCLUSION Differences in DNA methylation were found in placental tissue, umbilical cord white blood cells and HUVEC of patients with early onset preeclampsia compared to (un)complicated controls, but not in patients with late-onset preeclampsia. The genes showing the largest differential methylation encode insulin-like growth factor 2 binding protein and receptor and cadherin 13.
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Zhang W, Li M, Sun F, Xu X, Zhang Z, Liu J, Sun X, Zhang A, Shen Y, Xu J, Miao M, Wu B, Yuan Y, Huang X, Shi H, Du J. Association of Sperm Methylation at LINE-1, Four Candidate Genes, and Nicotine/Alcohol Exposure With the Risk of Infertility. Front Genet 2019; 10:1001. [PMID: 31681430 PMCID: PMC6813923 DOI: 10.3389/fgene.2019.01001] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 09/20/2019] [Indexed: 12/15/2022] Open
Abstract
In this study, we examined whether smoking and drinking affect sperm quality and the DNA methylation of the repetitive element LINE-1, MEST, P16, H19, and GNAS in sperm. Semen samples were obtained from 143 male residents in a minority-inhabited district of Guizhou province in southwest China. Quantitative DNA methylation analysis of the samples was performed using MassARRAY EpiTYPER assays. Sperm motility was significantly lower in both the nicotine-exposed (P = 0.0064) and the nicotine- and alcohol-exposed (P = 0.0008) groups. Follicle-stimulating hormone (FSH) levels were higher in the nicotine-exposed group (P = 0.0026). The repetitive element LINE-1 was hypermethylated in the three exposed groups, while P16 was hypomethylated in the alcohol and both the alcohol and nicotine exposure groups. Our results also show that alcohol and nicotine exposure altered sperm cell quality, which may be related to the methylation levels of MEST and GNAS. In addition, MEST, GNAS, and the repetitive element LINE1 methylation was significantly associated with the concentration of sperm as well as FSH and luteinizing hormone levels.
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Affiliation(s)
- Wenjing Zhang
- NHC Key Laboratory of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Fudan University, Shanghai, China.,Reproductive Medical Center, Changhai Hospital of Shanghai, Shanghai, China
| | - Min Li
- NHC Key Laboratory of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Fudan University, Shanghai, China
| | - Feng Sun
- Department of Obstetrics and Gynecology, International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Xuting Xu
- Huzhou Key Laboratory of Molecular Medicine, Huzhou Central Hospital, Zhejiang, China
| | - Zhaofeng Zhang
- NHC Key Laboratory of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Fudan University, Shanghai, China
| | - Junwei Liu
- NHC Key Laboratory of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Fudan University, Shanghai, China
| | - Xiaowei Sun
- NHC Key Laboratory of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Fudan University, Shanghai, China
| | - Aiping Zhang
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, Shanghai Jiao Tong University, Shanghai, China
| | - Yupei Shen
- NHC Key Laboratory of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Fudan University, Shanghai, China
| | - Jianhua Xu
- NHC Key Laboratory of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Fudan University, Shanghai, China
| | - Maohua Miao
- NHC Key Laboratory of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Fudan University, Shanghai, China
| | - Bin Wu
- NHC Key Laboratory of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Fudan University, Shanghai, China
| | - Yao Yuan
- NHC Key Laboratory of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Fudan University, Shanghai, China
| | - Xianliang Huang
- Shanghai Institute of Planned Parenthood Research Hospital, Shanghai, China
| | - Huijuan Shi
- NHC Key Laboratory of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Fudan University, Shanghai, China
| | - Jing Du
- NHC Key Laboratory of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Fudan University, Shanghai, China
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Kazmi N, Sharp GC, Reese SE, Vehmeijer FO, Lahti J, Page CM, Zhang W, Rifas-Shiman SL, Rezwan FI, Simpkin AJ, Burrows K, Richardson TG, Santos Ferreira DL, Fraser A, Harmon QE, Zhao S, Jaddoe VW, Czamara D, Binder EB, Magnus MC, Håberg SE, Nystad W, Nohr EA, Starling AP, Kechris KJ, Yang IV, DeMeo DL, Litonjua AA, Baccarelli A, Oken E, Holloway JW, Karmaus W, Arshad SH, Dabelea D, Sørensen TI, Laivuori H, Raikkonen K, Felix JF, London SJ, Hivert MF, Gaunt TR, Lawlor DA, Relton CL. Hypertensive Disorders of Pregnancy and DNA Methylation in Newborns. Hypertension 2019; 74:375-383. [PMID: 31230546 PMCID: PMC6635125 DOI: 10.1161/hypertensionaha.119.12634] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 02/23/2019] [Accepted: 05/13/2019] [Indexed: 12/15/2022]
Abstract
Hypertensive disorders of pregnancy (HDP) are associated with low birth weight, shorter gestational age, and increased risk of maternal and offspring cardiovascular diseases later in life. The mechanisms involved are poorly understood, but epigenetic regulation of gene expression may play a part. We performed meta-analyses in the Pregnancy and Childhood Epigenetics Consortium to test the association between either maternal HDP (10 cohorts; n=5242 [cases=476]) or preeclampsia (3 cohorts; n=2219 [cases=135]) and epigenome-wide DNA methylation in cord blood using the Illumina HumanMethylation450 BeadChip. In models adjusted for confounders, and with Bonferroni correction, HDP and preeclampsia were associated with DNA methylation at 43 and 26 CpG sites, respectively. HDP was associated with higher methylation at 27 (63%) of the 43 sites, and across all 43 sites, the mean absolute difference in methylation was between 0.6% and 2.6%. Epigenome-wide associations of HDP with offspring DNA methylation were modestly consistent with the equivalent epigenome-wide associations of preeclampsia with offspring DNA methylation (R2=0.26). In longitudinal analyses conducted in 1 study (n=108 HDP cases; 550 controls), there were similar changes in DNA methylation in offspring of those with and without HDP up to adolescence. Pathway analysis suggested that genes located at/near HDP-associated sites may be involved in developmental, embryogenesis, or neurological pathways. HDP is associated with offspring DNA methylation with potential relevance to development.
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Affiliation(s)
- Nabila Kazmi
- From the MRC Integrative Epidemiology Unit (N.K., G.C.S., A.J.S., K.B., T.G.R., D.L.S.F., A.F., M.C.M., T.I.A.S., T.R.G., D.A.L., C.L.R.), University of Bristol, United Kingdom
- Population Health Sciences, Bristol Medical School (N.K., G.C.S., K.B., T.G.R., D.L.S.F., A.F., M.C.M., T.R.G., D.A.L., C.L.R.), University of Bristol, United Kingdom
| | - Gemma C. Sharp
- From the MRC Integrative Epidemiology Unit (N.K., G.C.S., A.J.S., K.B., T.G.R., D.L.S.F., A.F., M.C.M., T.I.A.S., T.R.G., D.A.L., C.L.R.), University of Bristol, United Kingdom
- Population Health Sciences, Bristol Medical School (N.K., G.C.S., K.B., T.G.R., D.L.S.F., A.F., M.C.M., T.R.G., D.A.L., C.L.R.), University of Bristol, United Kingdom
- School of Oral and Dental Sciences (G.C.S.), University of Bristol, United Kingdom
| | - Sarah E. Reese
- Division of Intramural Research, Department of Health and Human Services, National Institute of Environmental Health Sciences, National Institutes of Health, Durham, NC (S.E.R., Q.E.H., S.Z., S.J.L.)
| | - Florianne O. Vehmeijer
- The Generation R Study Group (F.O.V., V.W.V.J., J.F.F.), Erasmus MC, University Medical Center Rotterdam, the Netherlands
- Department of Epidemiology (F.O.V., V.W.V.J., J.F.F.), Erasmus MC, University Medical Center Rotterdam, the Netherlands
- Department of Pediatrics (F.O.V., V.W.V.J., J.F.F.), Erasmus MC, University Medical Center Rotterdam, the Netherlands
| | - Jari Lahti
- Department of Psychology and Logopedics, Faculty of Medicine (J.L., K.R.), University of Helsinki, Finland
- Helsinki Collegium of Advanced Studies (J.L.), University of Helsinki, Finland
| | - Christian M. Page
- Division of Mental and Physical Health (C.M.P., W.N.), Norwegian Institute of Public Health, Oslo
- Oslo Centre for Biostatistics and Epidemiology, Oslo University Hospital, Norway (C.M.P.)
| | - Weiming Zhang
- Department of Biostatistics and Informatics (W.Z., K.J.K.), University of Colorado Anschutz Medical Campus, Aurora
| | - Sheryl L. Rifas-Shiman
- Department of Population Medicine, Harvard Medical School, Harvard Pilgrim Health Care Institute, Boston, MA (S.L.R.-S., E.O., M.-F.H.)
| | - Faisal I. Rezwan
- Human Development and Health (F.I.R., J.W.H.), Faculty of Medicine University of Southampton, United Kingdom
| | - Andrew J. Simpkin
- From the MRC Integrative Epidemiology Unit (N.K., G.C.S., A.J.S., K.B., T.G.R., D.L.S.F., A.F., M.C.M., T.I.A.S., T.R.G., D.A.L., C.L.R.), University of Bristol, United Kingdom
- Insight Centre for Data Analytics, National University of Ireland, Galway (A.J.S.)
| | - Kimberley Burrows
- From the MRC Integrative Epidemiology Unit (N.K., G.C.S., A.J.S., K.B., T.G.R., D.L.S.F., A.F., M.C.M., T.I.A.S., T.R.G., D.A.L., C.L.R.), University of Bristol, United Kingdom
- Population Health Sciences, Bristol Medical School (N.K., G.C.S., K.B., T.G.R., D.L.S.F., A.F., M.C.M., T.R.G., D.A.L., C.L.R.), University of Bristol, United Kingdom
| | - Tom G. Richardson
- From the MRC Integrative Epidemiology Unit (N.K., G.C.S., A.J.S., K.B., T.G.R., D.L.S.F., A.F., M.C.M., T.I.A.S., T.R.G., D.A.L., C.L.R.), University of Bristol, United Kingdom
- Population Health Sciences, Bristol Medical School (N.K., G.C.S., K.B., T.G.R., D.L.S.F., A.F., M.C.M., T.R.G., D.A.L., C.L.R.), University of Bristol, United Kingdom
| | - Diana L. Santos Ferreira
- From the MRC Integrative Epidemiology Unit (N.K., G.C.S., A.J.S., K.B., T.G.R., D.L.S.F., A.F., M.C.M., T.I.A.S., T.R.G., D.A.L., C.L.R.), University of Bristol, United Kingdom
- Population Health Sciences, Bristol Medical School (N.K., G.C.S., K.B., T.G.R., D.L.S.F., A.F., M.C.M., T.R.G., D.A.L., C.L.R.), University of Bristol, United Kingdom
| | - Abigail Fraser
- From the MRC Integrative Epidemiology Unit (N.K., G.C.S., A.J.S., K.B., T.G.R., D.L.S.F., A.F., M.C.M., T.I.A.S., T.R.G., D.A.L., C.L.R.), University of Bristol, United Kingdom
- Population Health Sciences, Bristol Medical School (N.K., G.C.S., K.B., T.G.R., D.L.S.F., A.F., M.C.M., T.R.G., D.A.L., C.L.R.), University of Bristol, United Kingdom
| | - Quaker E. Harmon
- Division of Intramural Research, Department of Health and Human Services, National Institute of Environmental Health Sciences, National Institutes of Health, Durham, NC (S.E.R., Q.E.H., S.Z., S.J.L.)
| | - Shanshan Zhao
- Division of Intramural Research, Department of Health and Human Services, National Institute of Environmental Health Sciences, National Institutes of Health, Durham, NC (S.E.R., Q.E.H., S.Z., S.J.L.)
| | - Vincent W.V. Jaddoe
- The Generation R Study Group (F.O.V., V.W.V.J., J.F.F.), Erasmus MC, University Medical Center Rotterdam, the Netherlands
- Department of Epidemiology (F.O.V., V.W.V.J., J.F.F.), Erasmus MC, University Medical Center Rotterdam, the Netherlands
- Department of Pediatrics (F.O.V., V.W.V.J., J.F.F.), Erasmus MC, University Medical Center Rotterdam, the Netherlands
| | - Darina Czamara
- Department of Translational Research in Psychiatry, Max-Planck Institute of Psychiatry, Munich, Germany (D.C., E.B.B.)
| | - Elisabeth B. Binder
- Department of Translational Research in Psychiatry, Max-Planck Institute of Psychiatry, Munich, Germany (D.C., E.B.B.)
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA (E.B.B.)
| | - Maria C. Magnus
- From the MRC Integrative Epidemiology Unit (N.K., G.C.S., A.J.S., K.B., T.G.R., D.L.S.F., A.F., M.C.M., T.I.A.S., T.R.G., D.A.L., C.L.R.), University of Bristol, United Kingdom
- Population Health Sciences, Bristol Medical School (N.K., G.C.S., K.B., T.G.R., D.L.S.F., A.F., M.C.M., T.R.G., D.A.L., C.L.R.), University of Bristol, United Kingdom
- Centre for Fertility and Health (M.C.M., S.E.H.), Norwegian Institute of Public Health, Oslo
| | - Siri E. Håberg
- Centre for Fertility and Health (M.C.M., S.E.H.), Norwegian Institute of Public Health, Oslo
| | - Wenche Nystad
- Division of Mental and Physical Health (C.M.P., W.N.), Norwegian Institute of Public Health, Oslo
| | - Ellen A. Nohr
- Research Unit of Gynaecology and Obstetrics, Department of Clinical Research, University of Southern Denmark, Odense (E.A.N.)
| | - Anne P. Starling
- Department of Epidemiology (A.P.S., I.V.Y., D.D.), University of Colorado Anschutz Medical Campus, Aurora
| | - Katerina J. Kechris
- Department of Biostatistics and Informatics (W.Z., K.J.K.), University of Colorado Anschutz Medical Campus, Aurora
| | - Ivana V. Yang
- Department of Epidemiology (A.P.S., I.V.Y., D.D.), University of Colorado Anschutz Medical Campus, Aurora
- Department of Medicine (I.V.Y.), University of Colorado Anschutz Medical Campus, Aurora
- Center for Genes, Environment and Health, National Jewish Health, Denver, CO (I.V.Y.)
| | - Dawn L. DeMeo
- Channing Division of Network Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA (D.L.D.)
| | - Augusto A. Litonjua
- Division of Pediatric Pulmonary Medicine, University of Rochester Medical Center, NY (A.A.L.)
| | - Andrea Baccarelli
- Laboratory of Precision Environmental Biosciences, Columbia University Mailman School of Public Health, New York, NY (A.B.)
| | - Emily Oken
- Department of Population Medicine, Harvard Medical School, Harvard Pilgrim Health Care Institute, Boston, MA (S.L.R.-S., E.O., M.-F.H.)
| | - John W. Holloway
- Human Development and Health (F.I.R., J.W.H.), Faculty of Medicine University of Southampton, United Kingdom
- Clinical and Experimental Sciences (J.W.H., S.H.A.), Faculty of Medicine University of Southampton, United Kingdom
| | - Wilfried Karmaus
- Division of Epidemiology, Biostatistics, and Environmental Health, School of Public Health, University of Memphis, TN (W.K.)
| | - Syed H. Arshad
- Clinical and Experimental Sciences (J.W.H., S.H.A.), Faculty of Medicine University of Southampton, United Kingdom
| | - Dana Dabelea
- Department of Epidemiology (A.P.S., I.V.Y., D.D.), University of Colorado Anschutz Medical Campus, Aurora
- Department of Pediatrics (D.D.), University of Colorado Anschutz Medical Campus, Aurora
| | - Thorkild I.A. Sørensen
- From the MRC Integrative Epidemiology Unit (N.K., G.C.S., A.J.S., K.B., T.G.R., D.L.S.F., A.F., M.C.M., T.I.A.S., T.R.G., D.A.L., C.L.R.), University of Bristol, United Kingdom
- Novo Nordisk Foundation Center for Basic Metabolic Research, Section on Metabolic Genetics (T.I.A.S.), Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
- Department of Public Health, Section on Epidemiology (T.I.A.S.), Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Hannele Laivuori
- Institute for Molecular Medicine Finland, Helsinki Institute of Life Science (H.L.), University of Helsinki, Finland
- Medical and Clinical Genetics, University of Helsinki and Helsinki University Hospital, Finland (H.L.)
- Faculty of Medicine and Life Sciences, University of Tampere, Finland (H.L.)
- Department of Obstetrics and Gynecology, Tampere University Hospital, Tampere, Finland (H.L.)
- Institute for Molecular Medicine Finland, Helsinki Institute of Life Science, University of Helsinki, Helsinki. Finland (H.L.)
| | - Katri Raikkonen
- Department of Psychology and Logopedics, Faculty of Medicine (J.L., K.R.), University of Helsinki, Finland
| | - Janine F. Felix
- The Generation R Study Group (F.O.V., V.W.V.J., J.F.F.), Erasmus MC, University Medical Center Rotterdam, the Netherlands
- Department of Epidemiology (F.O.V., V.W.V.J., J.F.F.), Erasmus MC, University Medical Center Rotterdam, the Netherlands
- Department of Pediatrics (F.O.V., V.W.V.J., J.F.F.), Erasmus MC, University Medical Center Rotterdam, the Netherlands
| | - Stephanie J. London
- Division of Intramural Research, Department of Health and Human Services, National Institute of Environmental Health Sciences, National Institutes of Health, Durham, NC (S.E.R., Q.E.H., S.Z., S.J.L.)
| | - Marie-France Hivert
- Department of Population Medicine, Harvard Medical School, Harvard Pilgrim Health Care Institute, Boston, MA (S.L.R.-S., E.O., M.-F.H.)
- Diabetes Unit, Massachusetts General Hospital, Boston, MA (M.-F.H.)
| | - Tom R. Gaunt
- From the MRC Integrative Epidemiology Unit (N.K., G.C.S., A.J.S., K.B., T.G.R., D.L.S.F., A.F., M.C.M., T.I.A.S., T.R.G., D.A.L., C.L.R.), University of Bristol, United Kingdom
- Population Health Sciences, Bristol Medical School (N.K., G.C.S., K.B., T.G.R., D.L.S.F., A.F., M.C.M., T.R.G., D.A.L., C.L.R.), University of Bristol, United Kingdom
- NIHR Bristol Biomedical Research Centre, Bristol, United Kingdom (T.R.G., D.A.L., C.L.R.)
| | - Debbie A. Lawlor
- From the MRC Integrative Epidemiology Unit (N.K., G.C.S., A.J.S., K.B., T.G.R., D.L.S.F., A.F., M.C.M., T.I.A.S., T.R.G., D.A.L., C.L.R.), University of Bristol, United Kingdom
- Population Health Sciences, Bristol Medical School (N.K., G.C.S., K.B., T.G.R., D.L.S.F., A.F., M.C.M., T.R.G., D.A.L., C.L.R.), University of Bristol, United Kingdom
- NIHR Bristol Biomedical Research Centre, Bristol, United Kingdom (T.R.G., D.A.L., C.L.R.)
| | - Caroline L. Relton
- From the MRC Integrative Epidemiology Unit (N.K., G.C.S., A.J.S., K.B., T.G.R., D.L.S.F., A.F., M.C.M., T.I.A.S., T.R.G., D.A.L., C.L.R.), University of Bristol, United Kingdom
- Population Health Sciences, Bristol Medical School (N.K., G.C.S., K.B., T.G.R., D.L.S.F., A.F., M.C.M., T.R.G., D.A.L., C.L.R.), University of Bristol, United Kingdom
- NIHR Bristol Biomedical Research Centre, Bristol, United Kingdom (T.R.G., D.A.L., C.L.R.)
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Apicella C, Ruano CSM, Méhats C, Miralles F, Vaiman D. The Role of Epigenetics in Placental Development and the Etiology of Preeclampsia. Int J Mol Sci 2019; 20:ijms20112837. [PMID: 31212604 PMCID: PMC6600551 DOI: 10.3390/ijms20112837] [Citation(s) in RCA: 96] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 06/03/2019] [Accepted: 06/03/2019] [Indexed: 12/12/2022] Open
Abstract
In this review, we comprehensively present the function of epigenetic regulations in normal placental development as well as in a prominent disease of placental origin, preeclampsia (PE). We describe current progress concerning the impact of DNA methylation, non-coding RNA (with a special emphasis on long non-coding RNA (lncRNA) and microRNA (miRNA)) and more marginally histone post-translational modifications, in the processes leading to normal and abnormal placental function. We also explore the potential use of epigenetic marks circulating in the maternal blood flow as putative biomarkers able to prognosticate the onset of PE, as well as classifying it according to its severity. The correlation between epigenetic marks and impacts on gene expression is systematically evaluated for the different epigenetic marks analyzed.
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Affiliation(s)
- Clara Apicella
- Institut Cochin, U1016 INSERM, UMR8104 CNRS, Université Paris Descartes, 24 rue du faubourg St Jacques, 75014 Paris, France.
| | - Camino S M Ruano
- Institut Cochin, U1016 INSERM, UMR8104 CNRS, Université Paris Descartes, 24 rue du faubourg St Jacques, 75014 Paris, France.
| | - Céline Méhats
- Institut Cochin, U1016 INSERM, UMR8104 CNRS, Université Paris Descartes, 24 rue du faubourg St Jacques, 75014 Paris, France.
| | - Francisco Miralles
- Institut Cochin, U1016 INSERM, UMR8104 CNRS, Université Paris Descartes, 24 rue du faubourg St Jacques, 75014 Paris, France.
| | - Daniel Vaiman
- Institut Cochin, U1016 INSERM, UMR8104 CNRS, Université Paris Descartes, 24 rue du faubourg St Jacques, 75014 Paris, France.
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16
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Affiliation(s)
- Mingyu Liang
- From the Center of Systems Molecular Medicine, Department of Physiology, Medical College of Wisconsin, Milwaukee
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17
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Zhu Z, Chen X, Xiao Y, Wen J, Chen J, Wang K, Chen G. Gestational diabetes mellitus alters DNA methylation profiles in pancreas of the offspring mice. J Diabetes Complications 2019; 33:15-22. [PMID: 30522793 DOI: 10.1016/j.jdiacomp.2018.11.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2018] [Revised: 11/02/2018] [Accepted: 11/02/2018] [Indexed: 12/20/2022]
Abstract
Gestational diabetes mellitus (GDM), which has an increasing global prevalence, contributes to the susceptibility to metabolic dysregulation and obesity in the offspring via epigenetic modifications. However, the underlying mechanism remains largely obscure. The current study established a GDM mice model to investigate the alternations in the metabolic phenotypes and genomic DNA methylation in the pancreas of the offspring. We found that in the GDM offspring, intrauterine hyperglycemia induced dyslipidemia, insulin resistance, and glucose intolerance. Meanwhile, altered DNA methylation patterns were exhibited in the pancreas and many differentially methylated regions (DMRs)-related genes were involved in glycolipids metabolism and related signaling pathways, including Agap2, Plcbr, Hnf1b, Gnas, Fbp2, Cdh13, Wnt2, Kcnq1, Lhcgr, Irx3, etc. Additionally, the overall hypermethylation of Agap2, verified by bisulfite sequencing PCR (BSP), was negatively correlated with its mRNA expression level. In conclusion, these findings suggest that the DNA methylation changes in the pancreatic genome of the GDM offspring may be associated with the glycolipid metabolism abnormalities, T2DM susceptibility, and obesity in the adult GDM offspring.
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Affiliation(s)
- Zhuangli Zhu
- Department of Endocrinology, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China
| | - Xiongfeng Chen
- Department of Scientific Research, Fujian Provincial Hospital, Fuzhou, Fujian, China.
| | - Yiqing Xiao
- Department of Endocrinology, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China
| | - Junping Wen
- Department of Endocrinology, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China
| | - Jinyan Chen
- Department of Scientific Research, Fujian Academy of Medical Sciences, Fuzhou, Fujian, China
| | - Kun Wang
- Department of Scientific Research, Fujian Academy of Medical Sciences, Fuzhou, Fujian, China
| | - Gang Chen
- Department of Endocrinology, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China; Department of Scientific Research, Fujian Academy of Medical Sciences, Fuzhou, Fujian, China.
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18
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Gunnarsdottir J, Cnattingius S, Lundgren M, Selling K, Högberg U, Wikström AK. Prenatal exposure to preeclampsia is associated with accelerated height gain in early childhood. PLoS One 2018; 13:e0192514. [PMID: 29438394 PMCID: PMC5811001 DOI: 10.1371/journal.pone.0192514] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 01/24/2018] [Indexed: 11/18/2022] Open
Abstract
Background Preeclampsia is associated with low birth weight, both because of increased risks of preterm and of small-for-gestational-age (SGA) births. Low birth weight is associated with accelerated childhood height gain and cardiovascular diseases later in life. The aim was to investigate if prenatal exposure to preeclampsia is associated with accelerated childhood height gain, also after adjustments for SGA-status and gestational age at birth. Methods In a cohort of children prenatally exposed to preeclampsia (n = 865) or unexposed (n = 22,898) we estimated height gain between birth and five years of age. The mean difference in height gain between exposed and unexposed children was calculated and adjustments were done with linear regression models. Results Children exposed to preeclampsia were on average born shorter than unexposed. Exposed children grew on average two cm more than unexposed from birth to five years of age. After adjustments for maternal characteristics including socioeconomic factors, height, body mass index (BMI) and diabetes, as well as for parents smoking habits, infant’s breastfeeding and childhood obesity, the difference was 1.6 cm (95% CI 1.3–1.9 cm). Further adjustment for SGA birth only slightly attenuated this estimate, but adjustment for gestational age at birth decreased the estimate to 0.5 cm (95% CI 0.1–0.7 cm). Conclusion Prenatal exposure to preeclampsia is associated with accelerated height gain in early childhood. The association seemed independent on SGA-status, but partly related to shorter gestational age at birth.
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Affiliation(s)
- Johanna Gunnarsdottir
- Department of Women’s and Children’s Health, Uppsala University, Uppsala, Sweden
- * E-mail:
| | - Sven Cnattingius
- Department of Medicine, Clinical Epidemiology Unit, Karolinska Institutet, Stockholm, Sweden
| | - Maria Lundgren
- Department of Women’s and Children’s Health, Uppsala University, Uppsala, Sweden
| | - Katarina Selling
- Department of Women’s and Children’s Health, Uppsala University, Uppsala, Sweden
| | - Ulf Högberg
- Department of Women’s and Children’s Health, Uppsala University, Uppsala, Sweden
| | - Anna-Karin Wikström
- Department of Women’s and Children’s Health, Uppsala University, Uppsala, Sweden
- Department of Medicine, Clinical Epidemiology Unit, Karolinska Institutet, Stockholm, Sweden
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Abstract
Pregnancy is known to induce rapid, progressive, and substantial changes to the cardiovascular system, ultimately facilitating successful pregnancy outcomes. Women who develop hypertensive disorders during pregnancy are considered to have "failed" the cardiovascular stress test of pregnancy and likely represent a subpopulation with inadequate cardiovascular accommodation. Preeclampsia is a serious complication with a myriad of manifestations in both mother and offspring. This pregnancy syndrome is a polygenic disease and has now been linked to a greater incidence of cardiovascular disease. Moreover, offsprings born to preeclamptic mothers exhibit an elevated risk of cardiovascular disease, stroke, and mental disorders during adulthood. This suggests that preeclampsia not only exposes the mother and the fetus to complications during pregnancy but also programs chronic diseases during adulthood in the offspring. The etiology of preeclampsia remains unknown, with various theories being suggested to explain its origin. It is primarily thought to be associated with poor placentation and entails excessive maternal inflammation and endothelial dysfunction. It is well established now that the maternal immune system and the placenta are involved in a highly choreographed cross talk that underlies adequate spiral artery remodeling required for uteroplacental perfusion and free flow of nutrients to the fetus. Although it is not clear whether immunological alterations occur early during pregnancy, studies have proposed that dysregulated systemic and placental immunity contribute to impaired angiogenesis and the onset of preeclampsia. Recently emerged strong evidence suggests a potential link among epigenetics, microRNAs (miRNAs), and pregnancy complications. This chapter will focus on important aspects of epigenetics, immunological aspects, and cardiovascular and vascular remodeling of preeclampsia.
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20
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Dunford AR, Sangster JM. Maternal and paternal periconceptional nutrition as an indicator of offspring metabolic syndrome risk in later life through epigenetic imprinting: A systematic review. Diabetes Metab Syndr 2017; 11 Suppl 2:S655-S662. [PMID: 28533070 DOI: 10.1016/j.dsx.2017.04.021] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Accepted: 04/27/2017] [Indexed: 12/11/2022]
Abstract
AIMS This review examined whether maternal and paternal periconceptional nutrition effects an offspring's likelihood of developing chronic metabolic related conditions due to epigenetic imprinting. METHODS A literature search was conducted in multiple science databases and limited to studies published after 2012, in English language and peer reviewed. The data from selected articles were extracted and a qualitative approach was employed due to heterogeneity of results. RESULTS Newborns from obese fathers showed altered methylation overall and significant hypomethylation at the Insulin-like Growth Factor 2 (IGF2) gene. High maternal pre-pregnancy body mass index (BMI) was associated with altered offspring DNA methylation levels and gestational diabetes mellitus induced significantly increased methylation levels in offspring. Gestational weight gain was not associated with differentially methylated cord blood. Birth weight was higher in offspring exposed to famine in early gestation. Offspring born post maternal bariatric surgery showed a lower percentage of body fat and improved fasting insulin levels compared to siblings born pre-maternal bariatric surgery. CONCLUSIONS The available evidence suggests that poor maternal and paternal periconceptional nutrition can increase the risk of metabolic syndrome in offspring, through epigenetic imprinting. Potential parents should be advised that maintaining a healthy diet and BMI is likely to reduce the risk of metabolic syndrome in offspring.
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Affiliation(s)
- Ashley R Dunford
- Nutrition Program, School of Dentistry and Health Sciences, Charles Sturt University, Wagga Wagga, Australia
| | - Janice M Sangster
- Nutrition Program, School of Dentistry and Health Sciences, Charles Sturt University, Wagga Wagga, Australia.
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21
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Wang X, Wan L, Weng X, Xie J, Zhang A, Liu Y, Dong M. Alteration in methylation level at differential methylated regions of MEST and DLK1 in fetus of preeclampsia. Hypertens Pregnancy 2017; 37:1-8. [PMID: 29157033 DOI: 10.1080/10641955.2017.1397689] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
OBJECTIVES Offspring born to preeclamptic women are at high risk for metabolic diseases in later life, but the mechanisms are not known. The purposes of the current investigation were to clarify the changes in DNA methylation at MEST and DLK1 DMRs in fetus of preeclampsia and to explore the possible mechanisms behind the high risk of adult diseases in the offspring of preeclampsia. METHODS Fetal lymphocytes were isolated from umbilical cord blood of 78 women with preeclampsia and 95 women with normal pregnancy. Genomic DNA was extracted and then DNA methylation levels of MEST and DLK1 DMRs were determined by MassARRAY quantitative methylation analysis. RESULTS The methylation levels were detected in 20 CpG sites of MEST DMR and 16 sites of DLK1 DMR. Methylation changes were significantly different at CPG1, 3, 4, 7.8, 15, 18.19, and 20 of MEST between preeclampsia and normal pregnancy (P = 0.014, 0.001, <0.001, <0.001, = 0.001, = 0.005, and = 0.003, respectively). Significant differences were also observed at CPG 3 and 9 of DLK1 (P = 0.002 and 0.027, respectively). However, overall methylation at these DMRs were not affected. CONCLUSION We conclude methylation changes at some CpG sites of MEST and DLK DMRs in preeclamptic group. This may be among the mechanisms behind the high risk of adult diseases in the later life of offspring born to preeclamptic pregnancies. ABBREVIATIONS DMR: Differentially Methylated Region; MEST: Mesoderm Specific Transcript.
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Affiliation(s)
- Xiaoqing Wang
- a Women's Hospital, School of Medicine , Zhejiang University.,b Ningbo Women and Children's Hospital , Ningbo , China
| | - Liuxia Wan
- a Women's Hospital, School of Medicine , Zhejiang University
| | - Xiaoling Weng
- a Women's Hospital, School of Medicine , Zhejiang University
| | - Jiamin Xie
- a Women's Hospital, School of Medicine , Zhejiang University
| | - Aiping Zhang
- c Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, Shanghai Jiao Tong University , Shanghai , China
| | - Yun Liu
- d Department of Biochemistry and Molecular Biology , Fudan University Shanghai Medical College , Shanghai , China.,e Department of Biochemistry and Molecular Biology , Key Laboratory of Molecular Medicine, The Ministry of Education, Fudan University Shanghai Medical College
| | - Minyue Dong
- a Women's Hospital, School of Medicine , Zhejiang University
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22
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Associations between maternal prenatal stress, methylation changes in IGF1 and IGF2, and birth weight. J Dev Orig Health Dis 2017; 9:215-222. [PMID: 29017633 DOI: 10.1017/s2040174417000800] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Maternal stress has been linked to low birth weight in newborns. One potential pathway involves epigenetic changes at candidate genes that may mediate the effects of prenatal maternal stress on birth weight. This relationship has been documented in stress-related genes, such as NR3C1. There is less literature exploring the effect of stress on growth-related genes. IGF1 and IGF2 have been implicated in fetal growth and development, though via different mechanisms as IGF2 is under imprinting control. In this study, we tested for associations between prenatal stress, methylation of IGF1 and IGF2, and birth weight. A total of 24 mother-newborn dyads in the Democratic Republic of Congo were enrolled. Ethnographic interviews were conducted with mothers at delivery to gather culturally relevant war-related and chronic stressors. DNA methylation data were generated from maternal venous, cord blood and placental tissue samples. Multivariate regressions were used to test for associations between stress measures, DNA methylation and birth weight in each of the three tissue types. We found an association between IGF2 methylation in maternal blood and birth weight. Previous literature on the relationship between IGF2 methylation and birth weight has focused on methylation at known differentially methylated regions in cord blood or placental samples. Our findings indicate there may be links between the maternal epigenome and low birth weight that rely on mechanisms outside known imprinting pathways. It thus may be important to consider the effect of maternal exposures and epigenetic profiles on birth weight even in the setting of maternally imprinted genes such as IGF2.
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23
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Sundheimer LW, Pisarska MD. Abnormal Placentation Associated with Infertility as a Marker of Overall Health. Semin Reprod Med 2017; 35:205-216. [PMID: 28658703 DOI: 10.1055/s-0037-1603570] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
AbstractInfertility and fertility treatments utilized are associated with abnormal placentation leading to adverse pregnancy outcomes related to placentation, including preterm birth, low birth weight, placenta accrete, and placenta previa. This may be due to the underlying genetics predisposing to infertility or the epigenetic changes associated with the fertility treatments utilized, as specific disease states leading to infertility are at increased risk of adverse outcomes, including placental abruption, fetal loss, gestational diabetes mellitus, and outcomes related to placentation, as well as the treatments utilized including in vitro fertilization (IVF) and non-IVF fertility treatment. Placentation defects, leading to adverse maternal and fetal outcomes, which are more pronounced in the infertile population, occur due to changes in trophoblast invasion, vascular defects, changes in the environmental milieu, chronic inflammation, and oxidative stress. These similar processes are recognized as major contributors to lifelong risk of cardiovascular and metabolic disease for both the mother and her offspring. Thus, abnormal placentation, found to be more prevalent in the infertile population, may be the key to better understand how infertility affects overall and long-term health.
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Affiliation(s)
- Lauren W Sundheimer
- Department of Obstetrics and Gynecology, Cedars-Sinai Medical Center, Los Angeles, California.,Division of Reproductive Endocrinology and Infertility, UCLA David Geffen School of Medicine, Los Angeles, California
| | - Margareta D Pisarska
- Department of Obstetrics and Gynecology, Cedars-Sinai Medical Center, Los Angeles, California.,Division of Reproductive Endocrinology and Infertility, UCLA David Geffen School of Medicine, Los Angeles, California
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24
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Jaskolka D, Retnakaran R, Zinman B, Kramer CK. Fetal sex and maternal risk of pre-eclampsia/eclampsia: a systematic review and meta-analysis. BJOG 2017; 124:553-560. [PMID: 27315789 DOI: 10.1111/1471-0528.14163] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/04/2016] [Indexed: 12/17/2022]
Abstract
BACKGROUND A preponderance of male fetuses in pregnancies complicated by pre-eclampsia was described over 40 years ago. Since then, however, there has been conflicting evidence in the literature, with some studies supporting a male preponderance, some demonstrating no relationship with fetal sex, and others reporting increased risk in pregnancies bearing females. OBJECTIVES In this context, we sought to conduct a systematic review and meta-analysis to objectively evaluate the relationship between fetal sex and maternal risk of pre-eclampsia/eclampsia. SEARCH STRATEGY Studies from January 1950 to April 2015 were identified from PUBMED and EMBASE. SELECTION CRITERIA This systematic review and meta-analysis evaluated 22 articles reporting data on fetal sex and prevalence of pre-eclampsia/eclampsia. DATA COLLECTION AND ANALYSIS Data were extracted by two independent reviewers. Pooled estimates of the relative risk (RR) were calculated by random-effects model. MAIN RESULTS Male fetus was considered the exposure and prevalence of maternal pre-eclampsia/eclampsia was the outcome of interest. We identified 534 studies through electronic searches and three studies through manual searches. Twenty-two studies fulfilled the inclusion criteria, yielding data on 3 163 735 women. Pooled analyses of these studies showed no association between male fetal sex and maternal risk of pre-eclampsia/eclampsia (RR 1.01; 95% confidence interval, 95% CI 0.97-1.05); however, a subgroup analysis including only studies that evaluated the non-Asian population (n = 2 931 771 women) demonstrated that male fetal sex was associated with increased maternal risk of pre-eclampsia/eclampsia (RR 1.05; 95% CI 1.03-1.06; I2 = 10%; P = 0.33). CONCLUSION Male fetal sex is associated with maternal risk of pre-eclampsia/eclampsia in the non-Asian population. TWEETABLE ABSTRACT Fetal sex is associated with maternal risk of pre-eclampsia/eclampsia in the non-Asian population.
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Affiliation(s)
- D Jaskolka
- Department of Medicine, University of Toronto, Toronto, ON, Canada
| | - R Retnakaran
- Department of Medicine, University of Toronto, Toronto, ON, Canada
- Division of Endocrinology, University of Toronto, Toronto, ON, Canada
- Leadership Sinai Centre for Diabetes, Mount Sinai Hospital, Toronto, ON, Canada
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada
| | - B Zinman
- Department of Medicine, University of Toronto, Toronto, ON, Canada
- Division of Endocrinology, University of Toronto, Toronto, ON, Canada
- Leadership Sinai Centre for Diabetes, Mount Sinai Hospital, Toronto, ON, Canada
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada
| | - C K Kramer
- Department of Medicine, University of Toronto, Toronto, ON, Canada
- Division of Endocrinology, University of Toronto, Toronto, ON, Canada
- Leadership Sinai Centre for Diabetes, Mount Sinai Hospital, Toronto, ON, Canada
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25
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Implications of maternal conditions and pregnancy course on offspring’s medical problems in adult life. Arch Gynecol Obstet 2016; 294:673-9. [DOI: 10.1007/s00404-016-4178-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Accepted: 08/08/2016] [Indexed: 01/26/2023]
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26
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Qian YY, Huang XL, Liang H, Zhang ZF, Xu JH, Chen JP, Yuan W, He L, Wang L, Miao MH, Du J, Li DK. Effects of maternal folic acid supplementation on gene methylation and being small for gestational age. J Hum Nutr Diet 2016; 29:643-51. [PMID: 27230729 DOI: 10.1111/jhn.12369] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
BACKGROUND Being small for gestational age (SGA), a foetal growth abnormality, has a long-lasting impact on childhood health. Its aetiology and underlying mechanisms are not well understood. Underlying epigenetic changes of imprinted genes have emerged as a potential pathological pathway because they may be associated with growth, including SGA. As a common methyl donor, folic acid (FA) is essential for DNA methylation, synthesis and repair, and FA supplementation is widely recommended for women planning pregnancy. The present study aimed to investigate the inter-relationships among methylation levels of two imprinted genes [H19 differentially methylated regions (DMRs) and MEST DMRs], maternal FA supplementation and SGA. METHODS We conducted a case-control study. Umbilical cord blood was taken from 39 SGA infants and 49 controls whose birth weights are appropriate for gestational age (AGA). DNA methylation levels of H19 and MEST DMRs were determined by an analysis of mass array quantitative methylation. RESULTS Statistically significantly higher methylation levels were observed at sites 7.8, 9 and 17.18 of H19 (P = 0.030, 0.016 and 0.050, respectively) in the SGA infants compared to the AGA group. In addition, the association was stronger in male births where the mothers took FA around conception at six H19 sites (P = 0.004, 0.005, 0.048, 0.002, 0.021 and 0.005, respectively). CONCLUSIONS Methylation levels at H19 DMRs were higher in SGA infants compared to AGA controls. It appears that the association may be influenced by maternal peri-conception FA supplementation and also be sex-specific.
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Affiliation(s)
- Y-Y Qian
- Shanghai Medical College of Fudan University, Shanghai, China.,Key Lab. of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, Shanghai, China
| | - X-L Huang
- Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - H Liang
- Key Lab. of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, Shanghai, China
| | - Z-F Zhang
- Key Lab. of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, Shanghai, China
| | - J-H Xu
- Key Lab. of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, Shanghai, China
| | - J-P Chen
- Key Lab. of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, Shanghai, China
| | - W Yuan
- Key Lab. of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, Shanghai, China
| | - L He
- Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Bio-X Institutes, Shanghai Jiao Tong University, Shanghai, China
| | - L Wang
- State Key Laboratory of Genetic Engineering and MOE Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China.,Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - M-H Miao
- Key Lab. of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, Shanghai, China.
| | - J Du
- Key Lab. of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, Shanghai, China.
| | - D-K Li
- Division of Research, Kaiser Permanente, Oakland, CA, USA
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27
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Maternal supplementation of omega-3 fatty acids and micronutrients reduces cardiometabolic variables in pregnancy induced hypertension rats. Life Sci 2016; 155:85-93. [PMID: 27181745 DOI: 10.1016/j.lfs.2016.05.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Revised: 04/30/2016] [Accepted: 05/10/2016] [Indexed: 12/24/2022]
Abstract
AIMS Reports indicate that during pregnancy hypertension is known to have long term adverse effects both in the mother and offspring. However, the effect of maternal micronutrient supplementation on this association of in utero exposure and risk of non-communicable diseases in the later life remains unclear. The present study examines the effect of maternal micronutrient and omega-3 fatty acid supplementation either individual or in combination on cardiometabolic risk factors both in the mother and offspring using an animal model of hypertension. MAIN METHODS Pregnant Wistar rats were randomly assigned to the following groups; control, PIH (Pregnancy induced hypertention) Induced, PIH+vitamin B12, PIH+ folic acid, PIH+omega-3 fatty acids and PIH+combined smicronutrient supplementation (vitamin B12+folic acid + omega-3 fatty acids). The dams and their offspring were shifted to a control diet after delivery and the offspring continued on these diets till 3mo of age. Hypertension during pregnancy was induced using l-Nitroarginine methylester (50mg/kgbody weight/day). KEY FINDINGS Omega-3 fatty acid supplementation during pregnancy demonstrated lower levels (p<0.05) of plasma cholesterol while a combined supplementation of folic acid, vitamin B12 and omega 3 fatty acids demonstrated lower (p<0.05) triglyceride levels as compared to PIH induced dams. PIH induction increased (p<0.01) the triglyceride levels in the offspring at 3mo of age and maternal supplementation of either individual or combined micronutrients demonstrated lower (p<0.01) triglyceride levels. SIGNIFICANCE Our findings have implications for planning intervention studies in women with pregnancy induced hypertension.
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28
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Sun M, Song MM, Wei B, Gao Q, Li L, Yao B, Chen L, Lin L, Dai Q, Zhou X, Tao J, Chen J, He C, Jin P, Xu Z. 5-Hydroxymethylcytosine-mediated alteration of transposon activity associated with the exposure to adverse in utero environments in human. Hum Mol Genet 2016; 25:2208-2219. [PMID: 27005421 DOI: 10.1093/hmg/ddw089] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2015] [Accepted: 03/11/2016] [Indexed: 12/18/2022] Open
Abstract
Preeclampsia and gestational diabetes mellitus (GDM) are the most common clinical conditions in pregnancy that could result in adverse in utero environments. Fetal exposure to poor environments may raise the long-term risk of postnatal disorders, while epigenetic modifications could be involved. Recent research has implicated involvement of 5-hydroxymethylcytosine (5hmC), a DNA base derived from 5-methylcytosine, via oxidation by ten-eleven translocation (TET) enzymes, in DNA methylation-related plasticity. Here, we show that the TET2 expression and 5hmC abundance are significantly altered in the umbilical veins of GDM and preeclampsia. Genome-wide profiling of 5hmC revealed its specific reduction on intragenic regions from both GDM and preeclampsia compared to healthy controls. Gene Ontology analysis using loci bearing unique GDM- and preeclampsia-specific loss-of-5hmC indicated its impact on several critical biological pathways. Interestingly, the substantial alteration of 5hmC on several transposons and repetitive elements led to their differential expression. The alteration of TET expression, 5hmC levels and 5hmC-mediated transposon activity was further confirmed using established hypoxia cell culture model, which could be rescued by vitamin C, a known activator of TET proteins. Together, these results suggest that adverse pregnancy environments could influence 5hmC-mediated epigenetic profile and contribute to abnormal development of fetal vascular systems that may lead to postnatal diseases.
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Affiliation(s)
- Miao Sun
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou City, Jiangsu 215006, China
| | - Mingxi M Song
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Bin Wei
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou City, Jiangsu 215006, China
| | - Qinqin Gao
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou City, Jiangsu 215006, China
| | - Lingjun Li
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou City, Jiangsu 215006, China
| | - Bing Yao
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Li Chen
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Li Lin
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Qing Dai
- Department of Chemistry, Department of Biochemistry and Molecular Biology, Institute for Biophysical Dynamics, Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA
| | - Xiuwen Zhou
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou City, Jiangsu 215006, China
| | - Jianying Tao
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou City, Jiangsu 215006, China
| | - Jie Chen
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou City, Jiangsu 215006, China
| | - Chuan He
- Department of Chemistry, Department of Biochemistry and Molecular Biology, Institute for Biophysical Dynamics, Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA
| | - Peng Jin
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Zhice Xu
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou City, Jiangsu 215006, China
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29
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Stojanovska V, Scherjon SA, Plösch T. Preeclampsia As Modulator of Offspring Health. Biol Reprod 2016; 94:53. [PMID: 26792940 DOI: 10.1095/biolreprod.115.135780] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2015] [Accepted: 01/15/2016] [Indexed: 02/01/2023] Open
Abstract
A balanced intrauterine homeostasis during pregnancy is crucial for optimal growth and development of the fetus. The intrauterine environment is extremely vulnerable to multisystem pregnancy disorders such as preeclampsia, which can be triggered by various pathophysiological factors, such as angiogenic imbalance, immune responses, and inflammation. The fetus adapts to these conditions by a mechanism known as developmental programming that can lead to increased risk of chronic noncommunicable diseases in later life. This is shown in a substantial number of epidemiological studies that associate preeclampsia with increased onset of cardiovascular and metabolic diseases in the later life of the offspring. Furthermore, animal models based predominantly on one of the pathophysiological mechanism of preeclampsia, for example, angiogenic imbalance, immune response, or inflammation, do address the susceptibility of the preeclamptic offspring to increased maternal blood pressure and disrupted metabolic homeostasis. Accordingly, we extensively reviewed the latest research on the role of preeclampsia on the offspring's metabolism and cardiovascular phenotype. We conclude that future research on the pathophysiological changes during preeclampsia and methods to intervene in the harsh intrauterine environment will be essential for effective therapies.
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Affiliation(s)
- Violeta Stojanovska
- Department of Obstetrics and Gynecology, University of Groningen, University Medical Center Groningen, The Netherlands
| | - Sicco A Scherjon
- Department of Obstetrics and Gynecology, University of Groningen, University Medical Center Groningen, The Netherlands
| | - Torsten Plösch
- Department of Obstetrics and Gynecology, University of Groningen, University Medical Center Groningen, The Netherlands
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30
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Wang S, Song J, Yang Y, Zhang Y, Wang H, Ma J. HIF3A DNA Methylation Is Associated with Childhood Obesity and ALT. PLoS One 2015; 10:e0145944. [PMID: 26717317 PMCID: PMC4696784 DOI: 10.1371/journal.pone.0145944] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Accepted: 12/10/2015] [Indexed: 12/18/2022] Open
Abstract
Gene polymorphisms associated so far with body mass index (BMI) can explain only 1.18–1.45% of observed variation in BMI. Recent studies suggest that epigenetic modifications, especially DNA methylation, could contribute to explain part of the missing heritability, and two epigenetic genome-wide analysis studies (EWAS) have reported that Hypoxia Inducible Factor 3 Alpha Subunit (HIF3A) methylation was associated with BMI or BMI change. We therefore assessed whether the HIF3A methylation is associated with obesity and other obesity-related phenotypes in Chinese children. The subjects included 110 severe obese cases aged 7–17y and 110 normal-weight controls matched by age and gender for measurement of blood DNA methylation levels at the HIF3A gene locus using the Sequenom’s MassARRAY system. We observed significantly higher methylation levels in obese children than in controls at positions 46801642 and 46801699 in HIF3A gene (P<0.05), and found positive associations between methylation and alanine aminotransferase (ALT) levels adjusted by gender, age and BMI at the position 46801699 (r = 0.226, P = 0.007). These results suggest that HIF3A DNA methylation is associated with childhood obesity, and has a BMI-independent association with ALT. The results provide evidence for identifying epigenetic factors of elivated ALT and may be useful for risk assessment and personalized medicine of liver diseases such as non-alcoholic fatty liver disease (NAFLD).
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Affiliation(s)
- Shuo Wang
- Institute of Child and Adolescent Health, School of Public Health, Peking University, Beijing, China
| | - Jieyun Song
- Institute of Child and Adolescent Health, School of Public Health, Peking University, Beijing, China
| | - Yide Yang
- Institute of Child and Adolescent Health, School of Public Health, Peking University, Beijing, China
| | - Yining Zhang
- Institute of Child and Adolescent Health, School of Public Health, Peking University, Beijing, China
| | - Haijun Wang
- Institute of Child and Adolescent Health, School of Public Health, Peking University, Beijing, China
| | - Jun Ma
- Institute of Child and Adolescent Health, School of Public Health, Peking University, Beijing, China
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Abstract
Donated oocytes are a treatment modality for female infertility which is also associated with increased risks of preeclampsia. Subsequently it is important to evaluate if there is concomitant increased risks for adverse neonatal events in donated oocyte neonates. A structured search of the literature using PubMed, EMBASE and Cochrane Reviews was performed to investigate the perinatal health outcomes of offspring conceived from donor oocytes compared with autologous oocytes. Meta-analysis was performed on comparable outcomes data. Twenty-eight studies were eligible and included in the review, and of these, 23 were included in a meta-analysis. Donor oocyte neonates are at increased risk of being born with low birth weight (<2500 g) [risk ratio (RR): 1.18, 95% confidence interval (CI): 1.14–1.22, P-value (P)<0.00001], very low birth weight (<1500 g) (RR: 1.24, CI: 1.15–1.35, P<0.00001), preterm (<37 weeks) (RR: 1.26, CI: 1.23–1.30, P<0.00001), of lower gestational age (mean difference −0.3 weeks, CI: −0.35 weeks to −0.25 weeks, P<0.00001), and preterm with low birth weight (RR: 1.24, CI: 1.19–1.29, P<0.00001), when compared with autologous oocyte neonates. Conversely, low birth weight outcomes were improved in term donor oocyte neonates (RR: 0.86, CI: 0.8–0.93, P=0.0003). These negative outcomes remained significant when controlling for multiple deliveries. The donor oocyte risk rates are higher than those found in general ART outcomes, are important considerations for the counselling of infertile patients and may also influence the long term health of the offspring.
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Smith CJ, Ryckman KK. Epigenetic and developmental influences on the risk of obesity, diabetes, and metabolic syndrome. Diabetes Metab Syndr Obes 2015; 8:295-302. [PMID: 26170704 PMCID: PMC4492644 DOI: 10.2147/dmso.s61296] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Metabolic syndrome is a growing cause of morbidity and mortality worldwide. Metabolic syndrome is characterized by the presence of a variety of metabolic disturbances including obesity, hyperlipidemia, hypertension, and elevated fasting blood sugar. Although the risk for metabolic syndrome has largely been attributed to adult lifestyle factors such as poor nutrition, lack of exercise, and smoking, there is now strong evidence suggesting that predisposition to the development of metabolic syndrome begins in utero. First posited by Hales and Barker in 1992, the "thrifty phenotype" hypothesis proposes that susceptibility to adult chronic diseases can occur in response to exposures in the prenatal and perinatal periods. This hypothesis has been continually supported by epidemiologic studies and studies involving animal models. In this review, we describe the structural, metabolic and epigenetic changes that occur in response to adverse intrauterine environments including prenatal and postnatal diet, maternal obesity, and pregnancy complications. Given the increasing prevalence of metabolic syndrome in both the developed and developing worlds, a greater understanding and appreciation for the role of the intrauterine environment in adult chronic disease etiology is imperative.
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Affiliation(s)
- Caitlin J Smith
- Department of Epidemiology, University of Iowa, College of Public Health, Iowa City, IA, USA
| | - Kelli K Ryckman
- Department of Epidemiology, University of Iowa, College of Public Health, Iowa City, IA, USA
- Correspondence: Kelli K Ryckman, Department of Epidemiology, University of Iowa, College of Public Health, 145 Riverside Drive, S414 CPHB, Iowa City, IA 52242, USA, Tel +1 319 384 1562, Fax +1 319 384 4155, Email
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33
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Chen D, Zhang A, Fang M, Fang R, Ge J, Jiang Y, Zhang H, Han C, Ye X, Huang H, Liu Y, Dong M. Increased methylation at differentially methylated region of GNAS in infants born to gestational diabetes. BMC MEDICAL GENETICS 2014; 15:108. [PMID: 25269528 PMCID: PMC4411875 DOI: 10.1186/s12881-014-0108-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Accepted: 09/24/2014] [Indexed: 12/20/2022]
Abstract
BACKGROUND Offspring of pregnancy complicated with gestational diabetes (GDM) are at high risk for metabolic diseases. The mechanisms behind the association of intrauterine exposure to GDM and high risk of health problems in later life remain largely unknown. The aim of this study was to clarify the alteration in methylation levels at differentially methylated regions (DMRs) of GNAS and IGF2 in fetuses of GDM women and to explore the possible mechanisms linking maternal GDM with high risk of metabolic diseases in later life of GDM offspring. METHODS Lymphocytes were isolated from umbilical cord blood of infants born to 87 women with GDM and 81 women with normal pregnancy. Genomic DNA was extracted and DNA methylation levels of GNAS and IGF2 DMRs were determined by Massarray quantitative methylation analysis. RESULTS The methylation levels were detected in 7 CpG sites of GNAS DMRs and 6 sites of IGF2 DMRs. Methylation levels were significantly higher at sites 4, 5 and 7 of GNAS DMR in GDM compared to normal pregnancy (P = 0.007, 0.008 and 0.008, respectively). The methylation level at site 4 of GNAS was significantly correlated with the presence of GDM (P = 0.003), the methylation levels at site 5 and 7 were significantly correlated with the presence of GDM (P = 0.002 for both) and gestational age (P = 0.027 for both). There was no significant difference in any sites of IGF2 DMR (P > 0.05 for all). CONCLUSIONS We concluded maternal GDM-induced hypermethylation at GNAS DMR and this condition may be among the mechanisms associating maternal GDM with increased risk of metabolic diseases in later life of offspring.
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Affiliation(s)
- Danqing Chen
- Women's Hospital, School of Medicine, Zhejiang University, 1 Xueshi Road, Hangzhou, 310006, Zhejiang Province, China.
| | - Aiping Zhang
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, Shanghai Jiao Tong University, Shanghai, China.
| | - Min Fang
- Shaoxing Women and Children's Hospital, Shaoxing, China.
| | - Rong Fang
- Huzhou Maternity and Child Care Hospital, Huzhou, China.
| | - Jiamei Ge
- Jiaxing Maternity and Child Care Hospital, Jiaxing, China.
| | - Yuan Jiang
- Ningbo Women and Children's Hospital, Ningbo, China.
| | - Hong Zhang
- Institutes of Biomedical Sciences, Fudan University, Shanghai, China.
| | - Cong Han
- Women's Hospital, School of Medicine, Zhejiang University, 1 Xueshi Road, Hangzhou, 310006, Zhejiang Province, China.
| | - Xiaoqun Ye
- Women's Hospital, School of Medicine, Zhejiang University, 1 Xueshi Road, Hangzhou, 310006, Zhejiang Province, China.
| | - Hefeng Huang
- Women's Hospital, School of Medicine, Zhejiang University, 1 Xueshi Road, Hangzhou, 310006, Zhejiang Province, China. .,Key Laboratory of Reproductive Genetics, Ministry of Education, Zhejiang University, Hangzhou, China.
| | - Yun Liu
- Institutes of Biomedical Sciences, Fudan University, Shanghai, China. .,Department of Biochemistry and Molecular Biology, Key Laboratory of Molecular Medicine, The Ministry of Education, Fudan University Shanghai Medical College, 303 Mingdao Building, 138 Yixueyuan Road, Shanghai, 200032, PR China.
| | - Minyue Dong
- Women's Hospital, School of Medicine, Zhejiang University, 1 Xueshi Road, Hangzhou, 310006, Zhejiang Province, China. .,Key Laboratory of Reproductive Genetics, Ministry of Education, Zhejiang University, Hangzhou, China. .,Key Laboratory of Women's Reproductive Health of Zhejiang Province, Hangzhou, China.
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34
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Hu W, Weng X, Dong M, Liu Y, Li W, Huang H. Alteration in methylation level at 11β-hydroxysteroid dehydrogenase type 2 gene promoter in infants born to preeclamptic women. BMC Genet 2014; 15:96. [PMID: 25200528 PMCID: PMC4363912 DOI: 10.1186/s12863-014-0096-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Accepted: 08/26/2014] [Indexed: 02/08/2023] Open
Abstract
Background Preeclampsia reduces placental expression and activity of 11β-hydroxysteroid dehydrogenase type 2 (HSD11B2), leading to an increase in fetal glucocordicoids. The latter has been proposed to be associated with low birth weight and high risk of metabolic diseases in later life of the offspring. This investigation aims to delineate the alteration in methylation levels at CpG sites of HSD11B2 promoter. Results Methylation levels of HSD9-2, HSD9-3, HSD23-2 and HSD23-3 and the mean methylation level were significantly lower in preeclampsia than in normal pregnancy (P = 0.002, 0.031, 0.047 and 0.001, respectively and P < 0.001 in mean). The mean methylation level was significantly correlated with preeclampsia after the adjustment of birth weight, maternal age, gestational age at delivery and fetal gender (r = 0.325, P < 0.001). Conclusions Preeclampsia reduced methylation level at fetal HSD11B2 promoter. A positive correlation existed between HSD11B2 promoter methylation and preeclampsia. Our findings suggest that the methyaltion status of HSD11B2 promoter is a potentially accessible biomarker for preeclampsia. However, further studies are required to address the mechanisms of thehypomethylation at HSD11B2 promoter and the significance of the hypomethylation in the development of metabolic diseases of the fetals born to preeclamptic women.
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Affiliation(s)
- Wensheng Hu
- Women's Hospital, School of Medicine, Zhejiang University, 1 Xueshi Road, Hangzhou, Zhejiang Province, 310006, China.
| | - Xiaoling Weng
- Institutes of Biomedical Sciences, Fudan University, 220 Handan Road, Shanghai, China.
| | - Minyue Dong
- Women's Hospital, School of Medicine, Zhejiang University, 1 Xueshi Road, Hangzhou, Zhejiang Province, 310006, China.
| | - Yun Liu
- Institutes of Biomedical Sciences, Fudan University, 220 Handan Road, Shanghai, China. .,Key Laboratory of Molecular Medicine, The Ministry of Education, Department of Biochemistry and Molecular Biology, Fudan University, 220 Handan Road, Shanghai, China.
| | - Wenjuan Li
- Women's Hospital, School of Medicine, Zhejiang University, 1 Xueshi Road, Hangzhou, Zhejiang Province, 310006, China.
| | - Hefeng Huang
- Women's Hospital, School of Medicine, Zhejiang University, 1 Xueshi Road, Hangzhou, Zhejiang Province, 310006, China.
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