A method for preventing or treating an ischemic disease, a neurological disease, a kidney disease or a liver disease in a subject in need thereof via increasing expression of one or more genes selected from a human hepatocyte growth factor (HGF) gene, an isoform gene of the human hepatocyte growth factor and a variant gene of the human hepatocyte growth factor, comprising administering to the subject a composition comprising the one or more genes and core-shell structured microparticles as active ingredients, and
- wherein the core is perfluorobutane, sulfur hexafluoride, or a mixture thereof as a biocompatible gas, and the shell is a lipid or a derivative thereof.