Todorova et al. [60] have examined the effects of GLN on GSH levels in 7,12-dimethylbenz[α]anthracene- (DMBA-) induced mammary tumors and correlated the results with protein and mRNA expression of apoptosis-related proteins Bcl-2, Bax, and caspase-3 in tumor cells. The gene discussed is BCL2; the disease is neoplasm.