Figure 3From: RNA expression patterns in serum microvesicles from patients with glioblastoma multiforme and controls Volcano plot of the False Discovery Rate (FDR) corrected p-values from a t -test between the two sample groups after background subtraction and quartile normalization. Genes above the horizontal dashed line have p < 0.05 after FDR correction. It is evident that substantially more genes are significantly down-regulated (121 genes in upper left corner, > 2-fold) than up-regulated (24 genes in upper right corner, > 2-fold).Back to article page