Frontiers in Genetics | |
Sex-specific variations in global DNA methylation levels with age: a population-based exploratory study from North India | |
Genetics | |
Kallur Nava Saraswathy1  Imnameren Longkumer2  Sonal Jain2  Vineet Chaudhary2  Anshika Kaushik2  | |
[1] Department of Anthropology, University of Delhi, Delhi, India;Laboratory of Molecular and Biochemical Anthropology, Department of Anthropology, University of Delhi, Delhi, India; | |
关键词: global DNA methylation; aging; epigenetics; epigenetic drift; epigenetic clock; | |
DOI : 10.3389/fgene.2023.1038529 | |
received in 2022-09-07, accepted in 2023-05-03, 发布年份 2023 | |
来源: Frontiers | |
【 摘 要 】
Purpose: Aging is one of the most important risk factors for a number of human diseases. Epigenetic alterations, including changes in DNA methylation patterns, have been reported to be one of the hallmarks of aging. Being a malleable process, the role of site-specific DNA methylation in aging is being extensively investigated; however, much less attention has been given to alterations in global DNA methylation with aging at the population level. The present study aims to explore overall and sex-specific variations in global DNA methylation patterns with age.Methods: A total of 1,127 adult individuals (792 females) aged 30–75 years belonging to Haryana, North India, were recruited. Socio-demographic data was collected using a pretested interview schedule. Global DNA methylation analysis, of peripheral blood leucocyte (PBL) DNA, was performed using the ELISA-based colorimetric technique.Results: Though the overall correlation analysis revealed a weak inverse trend between global DNA methylation and age, the adjusted regression model showed no significant association between global DNA methylation and age. In age-stratified analysis, global DNA methylation levels were found to be fairly stable until 60 years of age, followed by a decline in the above-60 age group. Further, no significant difference in DNA patterns methylation pattern was observed between males and females.Conclusion: Overall, the study suggests a lack of association between global DNA methylation and age, especially until 60 years of age, and a similar DNA methylation pattern between males and females with respect to age.
【 授权许可】
Unknown
Copyright © 2023 Kaushik, Chaudhary, Longkumer, Saraswathy and Jain.
【 预 览 】
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RO202310105355642ZK.pdf | 978KB | download |