Myocardial infarctions (MI) is a major threat to human health especially in people exposed to cold environment.The polarization theplayfulcollectivees.shop of macrophages towards different functional phenotypes (M1 macrophages and M2 macrophages) is closely related to MI repairment.The growth differentiation factor 11 (GDF11) has been reported to play a momentous role in inflammatory associated diseases.In this study, we examined the regulatory role of GDF11 in macrophage polarization and elucidated the underlying Dab Rigs mechanisms in MI.