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Background sFRP-1/FrzA, a secreted, frizzled-related protein and antagonist for the wnt/firzzled pathway, has certain treatment function in cardiovascular disease.Recombinant adeno-associated virus serotype 9(rAAV9) has been proved to be the best carrier in gene therapy.We assessed the hypothesis that using rAAV9 to carry FrzA Gene transfection to ischemic heart failure mice to intervene Wnt signal pathway.