Effects of low density lipoprotein (LDL) and oxidized LDL on cell viability: impedance and lactate dehydrogenase (LDH) release. Effects of LDL or oxLDL treatment on the viability of cultured cells from wild type (Wt) and ApoB-100 transgenic (Tg) mice. A Normalized cell index reflect to the viability of the cells 24 h after treatment. Viability of brain endothelial cells (EC), pericytes (PC) and astroglia cells (AC) is presented after LDL or oxLDL treatment. B Lactate dehydrogenase release of the cells 24 h posttreatment. C control, OX oxLDL treatment, TX Triton-X100 detergent. Values presented are mean ± SD, n = 3–7. Statistical analysis: ANOVA followed by Dunnett and Bonferroni tests. Statistically significant differences: (a) compared to wild type control; (b) compared to transgenic control; *p < 0.05; **p < 0.01; ***p < 0.001 wild type compared to transgenic group.