Effect of CUR and RES on expression of CD68 in monocyte/macrophage cells. PBMCs, pre-treated for 48 h with DMSO, CUR, and/or RES (5 µM), were analyzed by flow cytometry to assess the expression of CD68 on monocytes/macrophages (CD3−CD19−CD56−CD14+). Dots correspond to the MFI of CD68 expressed on the monocyte/macrophage subset in PBMCs isolated from seven healthy donors. Data are presented as the mean ± SD bars. Statistical significance of the effects obtained with CUR and RES, alone or in combination, was calculated vs. those obtained in DMSO-treated cells with two-tailed unpaired Student’s t test (* p < 0.05).