Heart failure is a global problem that occurs in 38 million patients worldwide, and the number is dramatically increasing in elderly society. Meanwhile, heart dysfunction is also the most common disease among hospitalized patients more than 65 years, especially in high-income countries. Approximately, one million patients are hospitalized because of heart failure in the world every year. Drug therapy is currently the most popular treatment for heart failure in clinic, however, the effects are limited. Therefore, exploring novel treatment strategies gradually becomes a focus not only in basic but also in clinical research.
