HDAC9 and myocardial infarction: The stronger association between HDAC9 and NSTEMI, compared with ST segment elevation myocardial infarction (STEMI), could suggest HDAC9 acting on myocardial infarction risk primarily through non-atherosclerotic mechanisms, as a higher proportion of NSTEMI can be attributed to non-atherosclerotic causes (Zipes et al., 2019).