Effect of Hijikia fusiforme extracts on degenerative osteoarthritis in vitro and in vivo models.
	    		
		   		
		   			
		   		
	    	
    	 
    	10.4162/nrp.2016.10.3.265
   		
        
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Han Ol KWON
			        		
			        		
			        		
			        			1
			        			
			        		
			        		
			        		
			        		
			        		;
		        		
		        		
		        		
			        		Minhee LEE
			        		
			        		;
		        		
		        		
		        		
			        		Ok Kyung KIM
			        		
			        		;
		        		
		        		
		        		
			        		Yejin HA
			        		
			        		;
		        		
		        		
		        		
			        		Woojin JUN
			        		
			        		;
		        		
		        		
		        		
			        		Jeongmin LEE
			        		
			        		
		        		
		        		
		        		
		        		
		        			
			        		
			        		Author Information
			        		
		        		
		        		
			        		
			        		
			        			1. Department of Medical Nutrition, Kyung Hee University, 1732, Deogyeong-daero, Giheung-gu, Yongin 17104, Korea. Jlee2007@khu.ac.kr
			        		
		        		
	        		
        		 
        	
        	
        	
        		- Publication Type:Original Article
 
        	
        	
        		- Keywords:
        			
	        			
	        				
	        				
			        		
				        		Chondrocyte;
			        		
			        		
			        		
				        		Collagen;
			        		
			        		
			        		
				        		MMP;
			        		
			        		
			        		
				        		TIMP
			        		
			        		
	        			
        			
        		
 
        	
            
            	- MeSH:
            	
	        			
	        				
	        				
				        		
					        		Administration, Oral;
				        		
			        		
				        		
					        		Aggrecans;
				        		
			        		
				        		
					        		Animals;
				        		
			        		
				        		
					        		Cartilage;
				        		
			        		
				        		
					        		Cartilage, Articular;
				        		
			        		
				        		
					        		Cell Survival;
				        		
			        		
				        		
					        		Chondrocytes;
				        		
			        		
				        		
					        		Collagen;
				        		
			        		
				        		
					        		Collagen Type I;
				        		
			        		
				        		
					        		Collagen Type II;
				        		
			        		
				        		
					        		Dinoprostone;
				        		
			        		
				        		
					        		Extracellular Matrix;
				        		
			        		
				        		
					        		In Vitro Techniques*;
				        		
			        		
				        		
					        		Injections, Intra-Articular;
				        		
			        		
				        		
					        		Knee Joint;
				        		
			        		
				        		
					        		Matrix Metalloproteinases;
				        		
			        		
				        		
					        		Models, Animal;
				        		
			        		
				        		
					        		Nitric Oxide;
				        		
			        		
				        		
					        		Osteoarthritis*;
				        		
			        		
				        		
					        		Rats;
				        		
			        		
				        		
					        		Real-Time Polymerase Chain Reaction;
				        		
			        		
				        		
					        		Tissue Inhibitor of Metalloproteinases
				        		
			        		
	        			
	        			
            	
            	
 
            
            
            	- From:Nutrition Research and Practice
	            		
	            		 2016;10(3):265-273
	            	
            	
 
            
            
            	- CountryRepublic of Korea
 
            
            
            	- Language:English
 
            
            
            	- 
		        	Abstract:
			       	
			       		
				        
				        	BACKGROUND/OBJECTIVES: The inhibitory effect of Hijikia fusiforme (HF) extracts on degenerative osteoarthritis was examined in primary cultured rat cartilage cells and a monosodium iodoacetate (MIA)-induced osteoarthritis rat model. MATERIALS/METHODS: In vitro, cell survival and the expression of matrix metalloproteinases (MMPs), collagen type I, collagen type II, aggrecan, and tissue inhibitor of metalloproteinases (TIMPs) was measured after H2O2 (800 µM, 2 hr) treatment in primary chondrocytes. In vivo animal study, osteoarthritis was induced by intra-articular injection of MIA into knee joints of rats, and then RH500, HFE250 and HFE500 were administered orally once a day for 28 days. To determine the anti-inflammatory effects of HFE, nitric oxide (NO), prostaglandin E2 (PGE2) expression were measured. In addition, real-time PCR was performed to measure the genetic expression of MMPs, collagen type I, collagen type II, aggrecan, and TIMPs. RESULTS: In the in vitro assay, cell survival after H2O2 treatment was increased by HFE extract (20% EtOH). In addition, anabolic factors (genetic expression of collagen type I, II, and aggrecan) were increased by HFE extract (20% EtOH). However, the genetic expression of MMP-3 and 7, known as catabolic factors were significantly inhibited by treatment with HFE extract (20% EtOH). In the in vivo assay, anabolic factors (genetic expression of collagen type I, II, aggrecan, and TIMPs) were increased by oral administration of HFE extract. However, the genetic expression of MMP-3 and 7, known as catabolic factors, and production of NO and PGE2 were significantly inhibited by treatment with oral administration of HFE extract. CONCLUSIONS: HFE extract inhibited articular cartilage degeneration through preventing extracellular matrix degradation and chondrocyte injury.