Background: Global methylation refers to the total methylation in the DNA and can also be inferred from the Line 1 and Alu regions, as these repeats are very abundant in the genome. The main function of DNA methylation is to control gene expression and is associated with both normal and pathological mechanisms. DNA methylation depends on enzymes that generate the methyl radical (e.g., methylenetetrahydrofolate reductase-MTHFR) and attach this radical to the DNA (DNA methyltransferases-DNMT). Genetic variants such as single nucleotide polymorphisms (SNP) in these genes can lead to changes in the activity or expression of MTHFR and DNMT proteins and consequently influence the DNA methylation profile. This review focuses on studies investigating inter-individual variations in the global DNA methylation profile associated with genetic polymorphisms in the and genes.
Methods: A narrative review was conducted, taking into account articles published in the last 15 years.
Results: It was found that the SNPs rs1801131, rs1801133 and rs1537514 in the gene, rs2241531, rs2228611, rs2228612, rs21124724 and the haplotype rs2288349, rs2228611, rs2228612, rs16999593 in the gene, rs2424909, rs998382, rs6058891, rs6058897, rs4911256, rs2889703 and rs1883729 in the were associated with the level of global DNA methylation, including LINE and Alu regions in different contexts. No association was found with polymorphisms in the gene.
Conclusions: It is concluded that polymorphisms in the and genes may influence the global DNA methylation profile in health, inflammation, tumours and mental illness.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.3390/genes15121504 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Relationship between CTF1 gene expression and prognosis and tumor immune microenvironment in glioma.
Eur J Med Res
January 2025
Department of Neurosurgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No 17 Panjiayuan Nanli, Chaoyang District, Beijing, 100021, People's Republic of China.
Objective: This study aimed to evaluate CTF1 expression in glioma, its relationship to patient prognosis and the tumor immune microenvironment, and effects on glioma phenotypes to identify a new therapeutic target for treating glioma precisely.
Methods: We initially assessed the expression of CTF1, a member of the IL-6 family, in glioma, using bioinformatics tools and publicly available databases. Furthermore, we examined the correlation between CTF1 expression and tumor prognosis, DNA methylation patterns, m6A-related genes, potential biological functions, the immune microenvironment, and genes associated with immune checkpoints.
Profiling the epigenome using long-read sequencing.
Nat Genet
January 2025
Institute for Integrative Systems Biology, Spanish National Research Council, Paterna, Spain.
The advent of single-molecule, long-read sequencing (LRS) technologies by Oxford Nanopore Technologies and Pacific Biosciences has revolutionized genomics, transcriptomics and, more recently, epigenomics research. These technologies offer distinct advantages, including the direct detection of methylated DNA and simultaneous assessment of DNA sequences spanning multiple kilobases along with their modifications at the single-molecule level. This has enabled the development of new assays for analyzing chromatin states and made it possible to integrate data for DNA methylation, chromatin accessibility, transcription factor binding and histone modifications, thereby facilitating comprehensive epigenomic profiling.
View Article and Find Full Text PDF[Paternal inheritance mediated by epigenetic changes in sperms].
Zhonghua Yi Xue Yi Chuan Xue Za Zhi
January 2025
Institute of Reproductive and Stem Cell Engineering, School of Basic Medical Sciences, Central South University, Changsha, Hunan 410078, China.
Epigenetics is the link between the genome and environment, which can respond to physiological (such as age) or environmental factors (such as diet, stress, and pollution) and induce changes in epigenetic modifications (such as DNA methylation, non-coding RNA, and histone modifications). It can also serve as cellular memory transmitted from generation to generation. Sperm is highly responsive to such environmental changes and has unique epigenetic profiles.
View Article and Find Full Text PDFGlucocorticoid Receptor Gene (NR3C1) Methylation Childhood Maltreatment Multilevel Reward Responsiveness and Depressive and Anxiety Symptoms: A Neuroimaging Epigenetic Study.
Neuroimage
January 2025
School of Nursing and Rehabilitation, Cheeloo College of Medicine, Shandong University, Jinan, China. Electronic address:
Background: Although epigenomic and environment interactions (Epigenome × Environment; Epi × E) might constitute a novel mechanism underlying reward processing direct evidence is still scarce. We conducted the first longitudinal study to investigate the extent to which DNA methylation of a stress-related gene-NR3C1-interacts with childhood maltreatment in association with young adult reward responsiveness (RR) and the downstream risk of depressive (anhedonia dimension in particular) and anxiety symptoms.
Method: A total of 192 Chinese university students aged 18∼25 (M = 21.
Fish models to explore epigenetic determinants of hypoxia-tolerance.
Comp Biochem Physiol A Mol Integr Physiol
January 2025
Department of Biology, University of Ottawa, K1N6N5, 20 Marie Curie, Ottawa, ON, Canada. Electronic address:
The occurrence of environmental hypoxia in freshwater and marine aquatic systems has increased over the last century and is predicted to further increase with climate change. As members of the largest extant vertebrate group, freshwater fishes, and to a much lesser extent marine fishes, are vulnerable to increased occurrence of hypoxia. This is important as fishes render important ecosystem services and have important cultural and economic roles.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!