1School of Pharmacy, Sungkyunkwan University, Suwon 440-746, Republic of Korea, 
2College of Veterinary Medicine, Konkuk University, Seoul 143-701, Republic of Korea , 
3Department of Life Science, Gachon University, Sungnam 461-701, Republic of Korea , 
4Department of Oriental Pharmacy, Woosuk University, Jeonju 565-701, Republic of Korea
								
					- 
					Corresponding author: 
					Jong Hwan Kwak , Tel: +82-31-290-7745, 
 
 
			
				Received: 4 February 2014   • Revised: 18 February 2014   • Accepted: 26 February 2014