新しい検査で2型糖尿病リスクを特定できるかもしれない(New test could help identify type 2 diabetes risk)

2023-04-06 エディンバラ大学

<関連情報>

• https://www.ed.ac.uk/news/2023/new-test-could-help-identify-type-2-diabetes-risk
• https://www.nature.com/articles/s43587-023-00391-4

欧州の2つのコホートにおけるDNAメチル化スコアの開発と検証により、2型糖尿病の10年リスク予測が増強される Development and validation of DNA methylation scores in two European cohorts augment 10-year risk prediction of type 2 diabetes

Yipeng Cheng,Danni A. Gadd,Christian Gieger,Karla Monterrubio-Gómez,Yufei Zhang,Imrich Berta,Michael J. Stam,Natalia Szlachetka,Evgenii Lobzaev,Nicola Wrobel,Lee Murphy,Archie Campbell,Cliff Nangle,Rosie M. Walker,Chloe Fawns-Ritchie,Annette Peters,Wolfgang Rathmann,David J. Porteous,Kathryn L. Evans,Andrew M. McIntosh,Timothy I. Cannings,Melanie Waldenberger,Andrea Ganna,Daniel L. McCartney,Catalina A. Vallejos & Riccardo E. Marioni
Nature Aging  Published:06 April 2023
DOI:https://doi.org/10.1038/s43587-023-00391-4

Abstract

Type 2 diabetes mellitus (T2D) presents a major health and economic burden that could be alleviated with improved early prediction and intervention. While standard risk factors have shown good predictive performance, we show that the use of blood-based DNA methylation information leads to a significant improvement in the prediction of 10-year T2D incidence risk. Previous studies have been largely constrained by linear assumptions, the use of cytosine–guanine pairs one-at-a-time and binary outcomes. We present a flexible approach (via an R package, MethylPipeR) based on a range of linear and tree-ensemble models that incorporate time-to-event data for prediction. Using the Generation Scotland cohort (training set n_cases = 374, n_controls = 9,461; test set n_cases = 252, n_controls = 4,526) our best-performing model (area under the receiver operating characteristic curve (AUC) = 0.872, area under the precision-recall curve (PRAUC) = 0.302) showed notable improvement in 10-year onset prediction beyond standard risk factors (AUC = 0.839, precision–recall AUC = 0.227). Replication was observed in the German-based KORA study (n = 1,451, n_cases = 142, P = 1.6 × 10^-5).