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Time-to-Event Genome-Wide Association Study for Incident Cardiovascular Disease in People with Type 2 Diabetes Mellitus

  • Soo Heon Kwak
  • , Ryan B Hernandez-Cancela
  • , Daniel A DiCorpo
  • , David E Condon
  • , Jordi Merino
  • , Peitao Wu
  • , Jennifer A Brody
  • , Jie Yao
  • , Xiuqing Guo
  • , Fariba Ahmadizar
  • , Mariah Meyer
  • , Murat Sincan
  • , Josep M Mercader
  • , Sujin Lee
  • , Jeffrey Haessler
  • , Ha My T Vy
  • , Zhaotong Lin
  • , Nicole D Armstrong
  • , Shaopeng Gu
  • , Noah L Tsao
  • Leslie A Lange, Ningyuan Wang, Kerri L Wiggins, Stella Trompet, Simin Liu, Ruth J F Loos, Renae Judy, Philip H Schroeder, Natalie R Hasbani, Maxime M Bos, Alanna C Morrison, Rebecca D Jackson, Alexander P Reiner, JoAnn E Manson, Ninad S Chaudhary, Lynn K Carmichael, Yii-Der Ida Chen, Kent D Taylor, Mohsen Ghanbari, Joyce van Meurs, Achilleas N Pitsillides, Bruce M Psaty, Raymond Noordam, Ron Do, Kyong Soo Park, J Wouter Jukema, Maryam Kavousi, Adolfo Correa, Stephen S Rich, Scott M Damrauer, Catherine Hajek, Nam H Cho, Marguerite R Irvin, James S Pankow, Girish N Nadkarni, Robert Sladek, Mark O Goodarzi, Jose C Florez, Daniel I Chasman, Susan R Heckbert, Charles Kooperberg, Josée Dupuis, Rajeev Malhotra, Paul S de Vries, Ching-Ti Liu, Jerome I Rotter, James B Meigs

Research output: Working paperPreprintAcademic

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Abstract

BACKGROUND: Type 2 diabetes mellitus (T2D) confers a two- to three-fold increased risk of cardiovascular disease (CVD). However, the mechanisms underlying increased CVD risk among people with T2D are only partially understood. We hypothesized that a genetic association study among people with T2D at risk for developing incident cardiovascular complications could provide insights into molecular genetic aspects underlying CVD.

METHODS: From 16 studies of the Cohorts for Heart & Aging Research in Genomic Epidemiology (CHARGE) Consortium, we conducted a multi-ancestry time-to-event genome-wide association study (GWAS) for incident CVD among people with T2D using Cox proportional hazards models. Incident CVD was defined based on a composite of coronary artery disease (CAD), stroke, and cardiovascular death that occurred at least one year after the diagnosis of T2D. Cohort-level estimated effect sizes were combined using inverse variance weighted fixed effects meta-analysis. We also tested 204 known CAD variants for association with incident CVD among patients with T2D.

RESULTS: A total of 49,230 participants with T2D were included in the analyses (31,118 European ancestries and 18,112 non-European ancestries) which consisted of 8,956 incident CVD cases over a range of mean follow-up duration between 3.2 and 33.7 years (event rate 18.2%). We identified three novel, distinct genetic loci for incident CVD among individuals with T2D that reached the threshold for genome-wide significance ( P<5.0×10 -8): rs147138607 (intergenic variant between CACNA1E and ZNF648) with a hazard ratio (HR) 1.23, 95% confidence interval (CI) 1.15 - 1.32, P=3.6×10 -9, rs11444867 (intergenic variant near HS3ST1) with HR 1.89, 95% CI 1.52 - 2.35, P=9.9×10 -9, and rs335407 (intergenic variant between TFB1M and NOX3) HR 1.25, 95% CI 1.16 - 1.35, P=1.5×10 -8. Among 204 known CAD loci, 32 were associated with incident CVD in people with T2D with P<0.05, and 5 were significant after Bonferroni correction ( P<0.00024, 0.05/204). A polygenic score of these 204 variants was significantly associated with incident CVD with HR 1.14 (95% CI 1.12 - 1.16) per 1 standard deviation increase ( P=1.0×10 -16).

CONCLUSIONS: The data point to novel and known genomic regions associated with incident CVD among individuals with T2D.

Original languageEnglish
PublishermedRxiv
Pages1-37
Number of pages37
DOIs
Publication statusPublished - 28 Jul 2023

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