Müller, B.W.* ; Hinney, A.* ; Scherbaum, N.* ; Weimar, C.* ; Kleinschnitz, C.* ; Peters, T.* ; Hochfeld, L.* ; Pechlivanis, S. ; Stang, A.* ; Jokisch, M.* ; Kowall, B.*
     
    
        
Klotho KL-VS haplotype does not improve cognition in a population-based sample of adults age 55-87 years.
    
    
        
    
    
        
        Sci. Rep. 11, 13852:13852 (2021)
    
    
    
      
      
	
	    The heterozygous human Klotho KL-VS haplotype has been associated with improved cognitive performance but results are inconsistent. Here we assessed Klotho KL-VS haplotype and cognition using data from the third examination of the population-based Heinz Nixdorf Recall Study. We analyzed cognition tests (immediate and delayed word list, Trail-Making Test [TMT] part A and B, Maze test, interference condition of the Stroop color-word test, verbal fluency) and their associations with Klotho KL-VS haplotype. The Klotho KL-VS haplotype is classified by the V-allele at SNP rs9536314 (F352V) and the S-allele at SNP rs9527025 (C370S). Heterozygotes for the KL-VS haplotype were compared with non-carriers. Analyses were performed in 1812 subjects (55-87 years). We found consistent but only slightly lower performance in heterozygous carriers of the KL-VS haplotype in all tasks with Z-scores ranging between Z = - 0.042 (verbal fluency) and - 0.17 (TMT part A). Differences between carriers and non-carriers were similar for men and women for all tests but TMT part B (interaction contrast = 8.4 s (95% CI - 2.3; 19.1)). While cognition declined with age, we found an effect modification by age (55-65 years, 66-75 years, > 75 years). In the 66-75 years KL-VS heterozygous age group, lower performance was seen in memory, visual attention and motor speed. Contrary to our hypothesis, heterozygous carriers of the KL-VS haplotype did not show enhanced performance in cognitive tests in our study.
	
	
	    
	
       
      
	
	    
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        Publication type
        Article: Journal article
    
 
    
        Document type
        Scientific Article
    
 
    
        Thesis type
        
    
 
    
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        Keywords
        Functional Variant; Plasma Klotho; Gene; Association; Mortality; Risk
    
 
    
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        Language
        english
    
 
    
        Publication Year
        2021
    
 
    
        Prepublished in Year
        
    
 
    
        HGF-reported in Year
        2021
    
 
    
    
        ISSN (print) / ISBN
        2045-2322
    
 
    
        e-ISSN
        2045-2322
    
 
    
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	    Volume: 11,  
	    Issue: 1,  
	    Pages: 13852 
	    Article Number: 13852 
	    Supplement: ,  
	
    
 
    
        
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            Publisher
            Nature Publishing Group
        
 
        
            Publishing Place
            London
        
 
	
        
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        Reviewing status
        Peer reviewed
    
 
    
        Institute(s)
        Institute of Asthma and Allergy Prevention (IAP)
    
 
    
        POF-Topic(s)
        30202 - Environmental Health
    
 
    
        Research field(s)
        Allergy	
    
 
    
        PSP Element(s)
        G-503300-001
    
 
    
        Grants
        Heinz Nixdorf Foundation
German Research Council (DFG)
German Ministry of Education and Science [BMBF]
Ministry of Innovation, Science, Research and Technology, North Rhine-Westphalia (MIWFT-NRW)
Janssen
Merck KG
Philips
ResMed Foundation
Roche Diagnostics
Sarstedt AGCo
Siemens HealthCare Diagnostics
Volkswagen Foundation
Imatron/GE-Imatron
Celgene GmbH Munchen
Dr. Werner-Jackstadt Stiftung
Else Kroner-Fresenius-Stiftung
German Social Accident Insurance [DGUV]
Competence Network for HIV/AIDS
IFORES of the University Duisburg-Essen
European Union
German Competence Network Heart Failure
Kulturstiftung Essen
Protein Research Unit within Europe (PURE)
Projekt DEAL
    
 
    
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        Erfassungsdatum
        2021-07-23