WANG Hualing, et al. PPARγ activators inhibitory effects on angiotensinⅡ induced tumor necrosis factora expression in neonatal rat cardiac myocytes[J]. Journal of Chongqing Medical University, 2005,(3):373-375.
WANG Hualing, et al. PPARγ activators inhibitory effects on angiotensinⅡ induced tumor necrosis factora expression in neonatal rat cardiac myocytes[J]. Journal of Chongqing Medical University, 2005,(3):373-375. DOI: 10.13406/j.cnki.cyxb.2005.03.018.
Objective:To explore the effects of the nuclear receptor peroxisome proliferator-activated receptor (PPAR)γ activators on tumor necrosis factor α (TNF-α) expression in neonatal rat cardiac myocytes.Methods:Primary culture of cardiac myocytes was prepared from 1~3 days old Spraque-Dawley rats.Cardiac myocytes were pretreated with rosiglitazone at different concentrations and then stimulated with angiotensin Ⅱ(1 μmol/L).ELISA and reverse transcripition-polymerase chain reaction(RT-PCR) were used to examine TNF-α in cultured supernatants and TNF-α mRNA in cardiac myocytes
respectively.Results:Pretreatment of cardiac myocytes with rosiglitazone inhibited the increase of TNF-α and TNF-α mRNA induced by angiotensinⅡ in a concentration-dependent manner.Conclusion:Rosiglitazone inhibits the expression of TNF-α in cardiac myocytes
which provides a new way for treating chronic heart failure.