In Situ Nick-End Labeling, Cresols - toxicity, Apoptosis - drug effects, Epithelial Cells - drug effects, Caspase 3 - metabolism, bcl-2-Associated X Protein - metabolism, Rats, Male, fas Receptor - metabolism, Rats, Sprague-Dawley, Necrosis - chemically induced, Kidney Tubules - cytology, Proto-Oncogene Proteins c-bcl-2 - metabolism, Animals, Epithelial Cell...