Comparison of alternative procedures for normalization of CD36 expression data obtained during THP-1 monocyte differentiation. A: Normalization using GeNorm normalization factor (ACTB and RPL37A). B: Normalization using G6PD expression data. Different fold changes and statistical interpretations are due to normalization procedures only. Error bars indicate standard deviations. *, p < 0.05; **, p < 0.01; ***, p < 0.001.