Japan Society for the Promotion of Science:Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)
Date (from‐to) : 2017/04 -2020/03
Author : Hitomi Jiro
WWe have established the idea that common DNA methylation (DNAm) variations (CDMV) are more likely to be associated with environmental exposures or biomedical traits than rare DNAm variations(Hachiya et al., 2017). Based on this CDMV strategy, we have developed methyl- capture sequencing method with newly designed catalogues of inter-individually variable CpG sites as targets for DNAm profiling, whose efficacy were estimated significantly higher than that of the most frequently used EWAS methods. Utilizing this novel method, we obtained genome-wide CDMV profiles of peripheral blood mononuclear cells from 529 individuals recruited as part of the Tohoku Medical Megabank Project. Participants were divided into two groups, G1(384, including 113 males), G2 (145, including 75 males) aged 20 to 86 years. We attempted to establish the calculation method to identify the DNAm biomarkers of cellular biological age as a predicting model for the human biological age.