Methods for regulating multiple organs, multiple genes and multiple targets by using a polypeptide. The polypeptide includes the amino acid sequence of SEQ ID No. 1 and/or homology thereof. The polypeptide reveals the potency to regulate transcription of multiple genes and expression of multiple targets. Therefore, a composition having the polypeptide can be applied to regulate the expression of multiple targets in multiple organs of patients. Furthermore, the composition having the polypeptide can be applied in therapies of inflammation and inflammatory disorders, suppression of fatty liver disease progression, suppression of the diseases caused by fatty accumulation, prevention and therapy of muscular atrophy, and avoiding the complications of diabetes.