DDAH1 and myocardial infarction: To investigate and verify the expression of Ddah1 in ischemic hearts, we first recalculated the expression of Ddah1 in two curated articles in which bulk RNA sequencing was performed: (1) Transcriptome analysis of remote, border, and infarcted zones in mice at 3, 7, and 14 days after MI or sham surgery (PMID: 31259610) (34); (2) Transcriptome analysis of cardiomyocytes, FBs, leukocytes, and ECs from sham- or MI-operated neonatal (P1) and adult (8W) mouse hearts at 3 days after surgery (PMID: 28733351) (35).