Elevation of the Serum Apurinic/Apyrimidinic Endonuclease 1/Redox Factor-1 in Coronary Artery Disease.
	    		
		   		
		   			
		   		
	    	
    	 
    	10.4070/kcj.2015.45.5.364
   		
        
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Seon Ah JIN
			        		
			        		
			        		
			        			1
			        			
			        		
			        		
			        		
			        		
			        		;
		        		
		        		
		        		
			        		Hee Jung SEO
			        		
			        		;
		        		
		        		
		        		
			        		Sun Kyeong KIM
			        		
			        		;
		        		
		        		
		        		
			        		Yu Ran LEE
			        		
			        		;
		        		
		        		
		        		
			        		Sunga CHOI
			        		
			        		;
		        		
		        		
		        		
			        		Kye Taek AHN
			        		
			        		;
		        		
		        		
		        		
			        		Jun Hyung KIM
			        		
			        		;
		        		
		        		
		        		
			        		Jae Hyeong PARK
			        		
			        		;
		        		
		        		
		        		
			        		Jae Hwan LEE
			        		
			        		;
		        		
		        		
		        		
			        		Si Wan CHOI
			        		
			        		;
		        		
		        		
		        		
			        		In Whan SEONG
			        		
			        		;
		        		
		        		
		        		
			        		Byeong Hwa JEON
			        		
			        		;
		        		
		        		
		        		
			        		Jin Ok JEONG
			        		
			        		
		        		
		        		
		        		
		        		
		        			
			        		
			        		Author Information
			        		
		        		
		        		
			        		
			        		
			        			1. Divison of Cardiology, Department of Internal Medicine, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea. jojeong@cnu.ac.kr
			        		
		        		
	        		
        		 
        	
        	
        	
        		- Publication Type:Original Article
 
        	
        	
        		- Keywords:
        			
	        			
	        				
	        				
			        		
				        		APEX1 protein, human;
			        		
			        		
			        		
				        		Ref-1 protein, human;
			        		
			        		
			        		
				        		Biological markers;
			        		
			        		
			        		
				        		Coronary artery disease
			        		
			        		
	        			
        			
        		
 
        	
            
            	- MeSH:
            	
	        			
	        				
	        				
				        		
					        		Acute Coronary Syndrome;
				        		
			        		
				        		
					        		Biomarkers;
				        		
			        		
				        		
					        		C-Reactive Protein;
				        		
			        		
				        		
					        		Coronary Artery Disease*;
				        		
			        		
				        		
					        		Coronary Vessels*;
				        		
			        		
				        		
					        		DNA;
				        		
			        		
				        		
					        		DNA Repair;
				        		
			        		
				        		
					        		Enzyme-Linked Immunosorbent Assay;
				        		
			        		
				        		
					        		Humans;
				        		
			        		
				        		
					        		Inflammation;
				        		
			        		
				        		
					        		Myocardial Infarction;
				        		
			        		
				        		
					        		Stroke;
				        		
			        		
				        		
					        		Troponin I
				        		
			        		
	        			
	        			
            	
            	
 
            
            
            	- From:Korean Circulation Journal
	            		
	            		 2015;45(5):364-371
	            	
            	
 
            
            
            	- CountryRepublic of Korea
 
            
            
            	- Language:English
 
            
            
            	- 
		        	Abstract:
			       	
			       		
				        
				        	BACKGROUND AND OBJECTIVES: Apurinic/apyrimidinic endonuclease 1/redox effector factor-1 (APE1/Ref-1) is a multifunctional protein involved in the DNA base excision repair pathway, inflammation, angiogenesis, and survival pathways. We investigated serum APE1/Ref-1 in patients with coronary artery disease (CAD). SUBJECTS AND METHODS: Serum APE1/Ref-1 was measured with a sandwich enzyme-linked immunosorbent assay from 360 patients who received coronary angiograms. They were divided into two groups; a control (n=57) and a CAD group (n=303), the latter included angina (n=128) and myocardial infarction (MI, n=175). RESULTS: The levels of APE1/Ref-1 were higher in the CAD than the control (0.63+/-0.07 vs. 0.12+/-0.07 ng/100 microL, respectively; p<0.01). They were also higher in MI than angina (0.81+/-0.10 vs. 0.38+/-0.11 ng/100 microL, respectively; p<0.01) and different according to the thrombolysis in myocardial infarction (TIMI) flow (0.88+/-0.09 for TIMI flow 0, 1, 2 vs. 0.45+/-0.13 ng/100 microL for TIMI flow 3, p<0.01) in acute coronary syndrome. In correlation analysis, the levels of APE1/Ref-1 were positively correlated with Troponin I (r=0.222; p<0.0001) and N-terminal pro-B type natriuretic peptide (NT-proBNP, r=0.217; p<0.0001) but not high sensitivity to C-reactive protein. Also, they revealed a negative correlation with ejection fraction (EF, r=-0.221; p=0.002). However, there were no significant differences among the three groups, were divided by their levels of APE1/Ref-1, for major adverse cardiovascular events (death, recurrent MI, stroke, revascularization) (8.2 vs. 14.0 vs. 12.5%, p=ns). CONCLUSION: The levels of serum APE1/Ref-1 are elevated in CAD, and are higher in MI than in angina. They are correlated with Troponin I, NT-proBNP, and EF.