Figure 6From: Cadmium suppresses the proliferation of piglet Sertoli cells and causes their DNA damage, cell apoptosis and aberrant ultrastructureTUNEL assay showed apoptotic cells in the seminiferous tubules of piglets with different doses of cadmium chloride treatment. A-D: TUNEL-positive cells in the seminiferous tubules of piglets without cadmium chloride treatment (A), or treated with cadmium chloride at 300 mg/kg body weight (B), 600 mg/kg body weight (C), or with 1200 mg/kg body weight (D). E: Quantitation assay showed that TUNEL-positive cells in the seminiferous tubules of piglets treated with various concentration of cadmium chloride. Compared to control group A, "*" indicated significant difference (p < 0.05), "**" indicated extremely significant difference (p < 0.01).Back to article page