Chemoprevention of Gastric Cancer: Metformin.
	    		
		   		
		   			
		   		
	    	
    	 
    	10.7704/kjhugr.2017.17.4.179
   		
        
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Young Il KIM
			        		
			        		
			        		
			        			1
			        			
			        		
			        		
			        		
			        		
			        		;
		        		
		        		
		        		
			        		Soo Jeong CHO
			        		
			        		
		        		
		        		
		        		
		        		
		        			
			        		
			        		Author Information
			        		
		        		
		        		
			        		
			        		
			        			1. Center for Gastric Cancer, National Cancer Center, Goyang, Korea. crystal522@ncc.re.kr
			        		
		        		
	        		
        		 
        	
        	
        	
        		- Publication Type:Review
 
        	
        	
        		- Keywords:
        			
	        			
	        				
	        				
			        		
				        		Chemoprevention;
			        		
			        		
			        		
				        		Metformin;
			        		
			        		
			        		
				        		Stomach neoplasms
			        		
			        		
	        			
        			
        		
 
        	
            
            	- MeSH:
            	
	        			
	        				
	        				
				        		
					        		Chemoprevention*;
				        		
			        		
				        		
					        		Epidemiologic Studies;
				        		
			        		
				        		
					        		Humans;
				        		
			        		
				        		
					        		Metformin*;
				        		
			        		
				        		
					        		Stomach Neoplasms*
				        		
			        		
	        			
	        			
            	
            	
 
            
            
            	- From:The Korean Journal of Helicobacter and Upper Gastrointestinal Research
	            		
	            		 2017;17(4):179-184
	            	
            	
 
            
            
            	- CountryRepublic of Korea
 
            
            
            	- Language:Korean
 
            
            
            	- 
		        	Abstract:
			       	
			       		
				        
				        	Metformin is a first-line anti-diabetic drug that has been widely used in patients with type 2 diabetes. Many population-based epidemiologic studies have shown that metformin treatment is associated with decreased risk for various cancers. Recent epidemiologic studies showed that the use of metformin was associated with a reduction in gastric cancer risk, especially in patients with type 2 diabetes who used metformin for long periods of time (>2~3 years). Currently, there are no registered clinical trials investigating the anti-cancer effect of metformin in gastric cancer; hence, further well-designed clinical trials are required. Herein, we review the literature regarding the use of metformin for the prevention of gastric cancer.