Conversion of epithelial cells (ATOH1, DMBT1, FOS), depolarization of cells (CACNA1C, FOS, NTS), development of Goblet/Paneth/enteroendocrine cells (ATOH1), hematological disease (HBA1, HBA2, HBB, GIF), partington syndrome (ARX), muchopolysaccharidosis (HYAL1), Pfeiffer's syndrome (FGFR2), retinoic acid synthesis (ALDH1A1, ALDH1A2), adenoma inflammation (TFF1), density of connective tissue (MIA, TNFRSF11B). The gene discussed is HBA2; the disease is adenoma.