CYP2E1 and malignant colon neoplasm: However, AMS has also been demonstrated to have several biological activities, including reduction of induced lipid peroxidation in mice [88], antibacterial activity [89], inhibition of cytochrome P450 2E1 [90], reduction of induced colon cancer in rats through modulation of cytochrome P450 enzymes [91,92], and increased human breath acetone levels [17].