Complex sentence: AFB1 was found in nucleus of liver cells, interacting with DNA, inhibiting RNA production (Clifford et al., 1976) and producing liver tumors which are hepatocellular carcinoma (Bulter et al., 1969).
Split into simpler sentences: AFB1 was found in the nucleus of liver cells by interacting with DNA, RNA that inhibit the production (Clifford et al., 1976). The production of liver cancer is hepatocellular carcinoma (Bulter et al., 1969).