Skip to main content
. Author manuscript; available in PMC: 2009 Sep 17.
Published in final edited form as: J Cereb Blood Flow Metab. 2008 Jul 16;28(11):1860–1875. doi: 10.1038/jcbfm.2008.77

Figure 1.

Figure 1

Microarray analysis of human perihematomal brain samples. (A) Standard deviation of array signals across control and experimental cases after RMA normalization. Lines in each column indicate mean and boxes indicated 2 standard deviations. Red boxes are U133a arrays; green are U133plus arrays. See Table 1 for×axis abbreviations. (B) Scatter plot of the significance of expression of all genes in perihematomal tissue versus control. Y axis is the B score, a statistic derived from Bayesian analysis that reflects the probability of being differentially expressed. Red dots are genes that are significantly expressed in perihematomal versus control, having a B score ≥1.5 (C). Array clustering according to the 1,000 most highly differentially expressed genes. The colors represent a ‘heat map’ and show the MAD (median absolute deviation) score for each array relative to each other array in the entire group. The color key for the MAD score is in the top left. A lower MAD score indicates less difference between arrays in the matrix, and a red score indicates a greater statistical difference in gene expression between arrays.