Effects of low density lipoprotein (LDL) and oxidized LDL on cell viability: impedance measurement. Effects of LDL or oxLDL treatment on the cell viability of wild type (Wt) and transgenic (Tg). a Primary mouse brain endothelial cells (EC), b pericytes (PC) and c astroglia cells (AC) over 24 h. Impedance is calculated from the normalized cell index which reflects cell viability. C control, OX oxLDL treatment; TX Triton-X100 detergent. Values presented are mean ± SD, n = 3–7.