1. Department of Microbiology and Immunology, School of Medicine; Soonchunhyang University; Cheonan Chungnam 31151 South Korea
2. Department of Life Science and Biotechnology; Soonchunhyang University; Asan Chungnam 31538 South Korea
3. Department of Chemistry; Soonchunhyang University; Asan Chungnam 31538 South Korea
4. National Development Institute of Korean Medicine; Gyeongsan Gyeongnam 38540 South Korea
5. Department of Physiology; College of Korean Medicine Dongguk University; Gyeongju 780-714 Republic of Korea