1. Laboratory of Prophylactic Pharmacology, Osaka Metropolitan University Graduate School of Veterinary Science, Osaka 598-8531, Japan
2. Molecular Toxicology Laboratory, Department of Pharmaceutical Sciences, Ritsumeikan University, Shiga 525-8577, Japan
3. Laboratory of Veterinary Pathology, Osaka Metropolitan University Graduate School of Veterinary Science, Osaka 598-8531, Japan
4. Department of Hepatology, Graduate School of Medicine, Osaka Metropolitan University, Osaka 545-8585, Japan