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Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Nat+Commun 2017 ; 8 (ä): ä Nephropedia Template TP
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DNA methylation signatures in peripheral blood strongly predict all-cause mortality #MMPMID28303888
Zhang Y; Wilson R; Heiss J; Breitling LP; Saum KU; Schöttker B; Holleczek B; Waldenberger M; Peters A; Brenner H
Nat Commun 2017[]; 8 (ä): ä PMID28303888show ga
DNA methylation (DNAm) has been revealed to play a role in various diseases. Here we performed epigenome-wide screening and validation to identify mortality-related DNAm signatures in a general population-based cohort with up to 14 years follow-up. In the discovery panel in a case-cohort approach, 11,063 CpGs reach genome-wide significance (FDR<0.05). 58 CpGs, mapping to 38 well-known disease-related genes and 14 intergenic regions, are confirmed in a validation panel. A mortality risk score based on ten selected CpGs exhibits strong association with all-cause mortality, showing hazard ratios (95% CI) of 2.16 (1.10?4.24), 3.42 (1.81?6.46) and 7.36 (3.69?14.68), respectively, for participants with scores of 1, 2?5 and 5+ compared with a score of 0. These associations are confirmed in an independent cohort and are independent from the ?epigenetic clock'. In conclusion, DNAm of multiple disease-related genes are strongly linked to mortality outcomes. The DNAm-based risk score might be informative for risk assessment and stratification.