AIM: To investigate the effects of pioglitazone on the quantity and function-related factors of regulatory and effector T cells( Treg and Teff) of uremic apolipoprotein E knockout mice in vitro with or without the stimulation of atherosclerotic plaque-specific antigen oxidized low-density lipoprotein( ox LDL). METHODS: Uremic apolipoprotein E knockout mouse model was established by 2-step surgical procedure. After intervention with different concentrations( 2μmol /L and 20 μmol /L) of pioglitazone and PPARγ...