C1QTNF9 and myocardial infarction: Studies have shown that CTRP9 has anti‐inflammatory effect via AMPK activation (Kambara et al., 2015; Zhang et al., 2016) and can attenuate adverse cardiac remodeling in long‐term MI, largely via a protein kinase A (PKA)‐dependent pathway (Sun et al., 2013).