RT Journal Article SR Electronic T1 The role of lipoprotein subfractions in coronary artery disease: A Mendelian randomization study JF bioRxiv FD Cold Spring Harbor Laboratory SP 691089 DO 10.1101/691089 A1 Qingyuan Zhao A1 Jingshu Wang A1 Zhen Miao A1 Nancy Zhang A1 Sean Hennessy A1 Dylan S Small A1 Daniel J Rader YR 2019 UL http://biorxiv.org/content/early/2019/07/03/691089.abstract AB Lipoprotein subfractions and particle sizes are increasingly used in observational studies to predict the risk of cardiovascular diseases. However, the causal role of the different subfractions remain largely uncertain because the conventional study designs are subject to unmeasured confounding. We used Mendelian randomization and public GWAS summary data to estimate the effect of 82 lipoprotein subfraction and particle size traits on the occurrence of coronary artery disease and myocardial infarction. We found that, unlike LDL and VLDL subfractions, HDL subfraction traits appear to have heterogeneous effects on coronary artery disease according to particle size. The concentration of medium HDL particles may have a protective effect on coronary artery disease that is independent of traditional lipid factors.