HMOX1 and neoplasm: Table 2 lists the mRNA levels of molecules. The Bach1 mRNA level, when detectable, was higher in the tumor than in normal tissue. The Hmox1 mRNA level was higher in the tumor than in normal tissue whether or not Bach1 mRNA expression was detectable. The Nrf2 mRNA level of normal tissue was higher in the subjects with detectable Bach1 mRNA expression than in those without.  Table 3 presents the ratios of mRNA levels to Nrf2 levels in percentage.