MALAT1 and myocardial infarction: Certain investigation by Guo et al. (2019) have indicated the advantageous role of MALAT1 following myocardial infarction; nevertheless, another study by Gong et al. (2019) reported that elevated MALAT1 levels induced myocardial cell death in mice with myocardial infarction, and the rationale for this discrepancy remains inadequately elucidated.