Mack, S.* ; Coassin, S.* ; Rueedi, R.* ; Yousri, N.A.* ; Seppälä, I.* ; Gieger, C. ; Schoenherr, S.* ; Forer, L.* ; Erhart, G.* ; Marques-Vidal, P.* ; Ried, J.S. ; Waeber, G.* ; Bergmann, S.* ; Daehnhardt, D.* ; Stoeckl, A.* ; Raitakari, O.T.* ; Khahonen, M.* ; Peters, A. ; Meitinger, T. ; Strauch, K. ; Kedenko, L.* ; Paulweber, B.* ; Lehtimäki, T.J.* ; Hunt, S.C.* ; Vollenweider, P.* ; Lamina, C.* ; Kronenberg, F.*
     
 
    
        
A genome-wide association meta-analysis on lipoprotein (a) concentrations adjusted for apolipoprotein (a) isoforms.
    
    
        
    
    
        
        J. Lipid Res. 58, 1834-1844 (2017)
    
    
    
		
		
			
				High lipoprotein (a) [Lp(a)] concentrations are an independent risk factor for cardiovascular outcomes. Concentrations are strongly influenced by apo(a) kringle IV repeat isoforms. We aimed to identify genetic loci associated with Lp(a) concentrations using data from five genome-wide association studies (n = 13,781). We identified 48 independent SNPs in the LPA and 1 SNP in the APOE gene region to be significantly associated with Lp(a) concentrations. We also adjusted for apo(a) isoforms to identify loci affecting Lp(a) levels independently from them, which resulted in 31 SNPs (30 in the LPA, 1 in the APOE gene region). Seven SNPs showed a genome-wide significant association with coronary artery disease (CAD) risk. A rare SNP (rs186696265; MAF ∼1%) showed the highest effect on Lp(a) and was also associated with increased risk of CAD (odds ratio = 1.73, P = 3.35 × 10−30). Median Lp(a) values increased from 2.1 to 91.1 mg/dl with increasing number of Lp(a)-increasing alleles. We found the APOE2-determining allele of rs7412 to be significantly associated with Lp(a) concentrations (P = 3.47 × 10−10). Each APOE2 allele decreased Lp(a) by 3.34 mg/dl corresponding to ∼15% of the population’s mean values. Performing a gene-based test of association, including suspected Lp(a) receptors and regulators, resulted in one significant association of the TLR2 gene with Lp(a) (P = 3.4 × 10−4). In summary, we identified a large number of independent SNPs in the LPA gene region, as well as the APOE2 allele, to be significantly associated with Lp(a) concentrations.
			
			
				
			
		 
		
			
				
					
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        Publikationstyp
        Artikel: Journalartikel
    
 
    
        Dokumenttyp
        Wissenschaftlicher Artikel
    
 
    
        Typ der Hochschulschrift
        
    
 
    
        Herausgeber
        
    
    
        Schlagwörter
        Genetics ; Epidemiology ; Coronary Artery Disease; Coronary-artery-disease; Genetic-variants; Plasma Lipoprotein(a); Myocardial-infarction; Molecular-basis; Lpa Locus; Lp(a); Risk; Identification; Caucasians
    
 
    
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        Sprache
        englisch
    
 
    
        Veröffentlichungsjahr
        2017
    
 
    
        Prepublished im Jahr 
        
    
 
    
        HGF-Berichtsjahr
        2017
    
 
    
    
        ISSN (print) / ISBN
        0022-2275
    
 
    
        e-ISSN
        1539-7262
    
 
    
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	    Band: 58,  
	    Heft: 9,  
	    Seiten: 1834-1844 
	    Artikelnummer: ,  
	    Supplement: ,  
	
    
 
  
        
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            Verlag
            American Society for Biochemistry and Molecular Biology
        
 
        
            Verlagsort
            Bethesda
        
 
	
        
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        Begutachtungsstatus
        Peer reviewed
    
 
     
    
        POF Topic(s)
        30202 - Environmental Health
30501 - Systemic Analysis of Genetic and Environmental Factors that Impact Health
90000 - German Center for Diabetes Research
    
 
    
        Forschungsfeld(er)
        Genetics and Epidemiology
    
 
    
        PSP-Element(e)
        G-504091-004
G-504000-002
G-504100-001
G-501900-402
G-500700-001
G-504090-001
    
 
    
        Förderungen
        
    
 
    
        Copyright
        
    
 	
    
    
    
    
    
        Erfassungsdatum
        2017-09-22