Figure 3.

Quercetin increased the expression of PPARγ and activated PPARγ signaling. (A) Pparγ mRNA level was tested by Real-time PCR and (B) The protein level was tested by western-blotting in THP1 derived macrophages treated by ox-LDL in the presence of quercetin as indicated concentration or time, and 18S rRNA or Tubulin was used as internal control. (C) PPARγ reporter (PRE-reporter) assay was done in THP1 derived macrophage with quercetin treatment. Data are presented as the mean ± S.E. of at least four independent experiments. **P<0.01, ***P<0.001.