In order to compare Clca2 expression in quiescent cardiac fibroblasts and activated cardiac fibroblasts, C57B/6 mice were subjected to the LAD procedure to induce myocardial infarction; previous investigations have shown that FMyT peaks at 7 day after the surgery (Kanisicak et al., 2016). This evidence concerns the gene CLCA2 and myocardial infarction.