Figure 2From: Identification of valid reference genes for the normalization of RT qPCR gene expression data in human brain tissueGene expression stability and pairwise variation of the candidate reference genes using geNorm analysis. A – Expression stability plot showing the average expression stability (M) for the remaining genes following the sequential elimination of the least stable gene at each round. Least stable (left) and the two most stable (right). B – Pairwise variation analysis to determine the optimal number of reference genes for use in RT qPCR data normalization.Back to article page