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Figure 2 Multidimensional scaling (MDS) of pre- and post-left ventricular assist device (LVAD) gene expression. (A) Raw data classified according to segregating patient clinical characteristics were subjected to MDS. Pre-1 (yellow) and post-1 (red) represent nonischemic patients, whereas pre-2 (blue) and post-2 (green) represent ischemic patients. (B) Raw gene expression data from the 530 genes determined to be significant by paired t test analysis, classified according to segregating patient clinical characteristics and subjected to MDS. The images represent convergence of the MDS algorithm, stress for both (measure of image validity) <0.05. Note the limitation of program-assigned color schemes.
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