Objective:This study aims to explore the role and potential molecular mechanism of microRNA(miR)-190 in aging-related energy metabolism disorders. Methods:Real-time fluorescent quantitative PCR(RT-PCR)was used to detect the expression level of miR-190 in the adipose tissue of aging mice;a cellular senescence model was constructed and RT-PCR was used to detect the changes of miR-190 in adipocytes;RT-PCR was used to detect the changes in thermogenesis genes in the adipocytes transfected with miR-190;the target genes of miR-190 were verified by the dual luciferase reporter gene experiment;the metabolic homeostasis was determined in aged mice injected with miR-190 antagomir. Results:During the aging process,the expression of miR-190 in adipose tissue was elevated;in the senescent cell model,the expression of miR-190 was also up-regulated;overexpression of miR-190 in adipocytes would lead to a decrease in the expression of thermogenesis genes;the key genes for thermogenesis PRDM16 is the direct target gene of miR-190;inhibiting the level of miR-190 in aging mice can help improve the energy metabolism homeostasis of aged mice. Conclusion:miR-190 may affect adipose tissue heat production by targeting PRDM16,which in turn affects energy metabolism homeostasis and accelerates aging.