1. Department of Biochemistry, Medical School and Diabetes Research Center, Chonbuk National University, Jeonju 561-756, Korea.
2. Zoonosis Research Center, Wonkwang University, Iksan 570-749, Korea.
3. Department of Physiology, School of Oriental Medicine, Wonkwang University, Iksan 570-749, Korea.
4. College of Pharmacy, Wonkwang University, Iksan 570-749, Korea.