Transcriptional analysis of left-sided colitis, pancolitis and ulcerative colitis-associated dysplasia

Colonic biopsies were obtained from forty-five patients with UC (20 left-sided colitis, 19 pancolitis, and 6 UC-associated dysplasia) and 15 controls. The Affymetrix GeneChip Human Genome U133 Plus 2.0 was used