Chew, S.M. ; Teumer, A.* ; Matias-Garcia, P.R. ; Gieger, C. ; Winkelmann, J. ; Suhre, K.* ; Herder, C.* ; Rathmann, W.* ; Peters, A. ; Waldenberger, M.
     
    
        
Cross-sectional and longitudinal association of seven DNAm-based predictors with metabolic syndrome and type 2 diabetes.
    
    
        
    
    
        
        Clin. Epigenet. 17:58 (2025)
    
    
    
      
      
	
	    BACKGROUND: To date, various epigenetic clocks have been constructed to estimate biological age, most commonly using DNA methylation (DNAm). These include "first-generation" clocks such as DNAmAgeHorvath and "second-generation" clocks such as DNAmPhenoAge and DNAmGrimAge. The divergence of one's predicted DNAm age from chronological age, termed DNAmAge acceleration (AA), has been linked to mortality and various aging-related conditions, albeit with varying findings. In metabolic syndrome (MetS) and type 2 diabetes (T2D), it remains inconclusive which DNAm-based predictor(s) is/are closely related to these two metabolic conditions. Therefore, we examined the cross-sectional associations between seven DNAm-based predictors and prevalent metabolic conditions in participants with methylation data from the KORA study. We also analyzed the longitudinal association with time-to-incident T2D and the relative prognostic value compared to clinical predictors from the Framingham 8-year T2D risk function in predicting incident disease over eight years. RESULTS: GrimAA and PhenoAA difference demonstrated consistently significant associations in the cross-sectional and longitudinal analyses. GrimAA difference reported a larger effect: with prevalent MetS at F4 (odds ratio = 1.09, 95% confidence interval = [1.06-1.13], p = 2.04E-08), with prevalent T2D at F4 (odds ratio = 1.09 [1.04-1.13], p = 1.38E-04) and with time-to-incident T2D (hazards ratio = 1.05 [1.01-1.10], p = 0.02) for each year increase in GrimAA difference. Mortality risk score was significantly associated with both prevalent metabolic conditions but not in the longitudinal analysis. The inclusion of DNAm-based predictor in the model with Framingham clinical predictors improved discriminative ability, albeit not significantly. Notably, the DNAm-based predictor, when fitted separately, showed a discriminative ability comparable to that of the model with clinical predictors. Overall, no clear pattern of significant associations was identified in the epigenetic measures from the "first-generation" clocks. CONCLUSIONS: GrimAA, PhenoAA difference and mortality risk score, derived from the "second-generation" clocks, demonstrated significant associations with both MetS and T2D. These DNAm-based predictors may be useful biomarkers for risk stratification and disease prognosis in our study sample of European ancestry. Further research is warranted to investigate the generalizability of our findings across different ancestries and to examine the underlying shared biological mechanisms.
	
	
	    
	
       
      
	
	    
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        Publication type
        Article: Journal article
    
 
    
        Document type
        Scientific Article
    
 
    
        Thesis type
        
    
 
    
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        Keywords
        Dnam Age ; Diabetes ; Epigenetic Age Acceleration ; Metabolic Syndrome ; Risk Prediction; Plasminogen-activator Inhibitor-1; Epigenetic Clocks; Methylation; Expression; Mellitus
    
 
    
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        Language
        english
    
 
    
        Publication Year
        2025
    
 
    
        Prepublished in Year
        0
    
 
    
        HGF-reported in Year
        2025
    
 
    
    
        ISSN (print) / ISBN
        1868-7075
    
 
    
        e-ISSN
        1868-7083
    
 
    
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	    Volume: 17,  
	    Issue: 1,  
	    Pages: ,  
	    Article Number: 58 
	    Supplement: ,  
	
    
 
    
        
            Series
            
        
 
        
            Publisher
            Springer
        
 
        
            Publishing Place
            Berlin : Heidelberg
        
 
	
        
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        Reviewing status
        Peer reviewed
    
 
     
    
        POF-Topic(s)
        30202 - Environmental Health
30205 - Bioengineering and Digital Health
    
 
    
        Research field(s)
        Genetics and Epidemiology
    
 
    
        PSP Element(s)
        G-504091-001
G-504091-004
G-503200-001
G-504000-010
G-504090-001
    
 
    
        Grants
        Helmholtz Zentrum Mnchen - Deutsches Forschungszentrum fr Gesundheit und Umwelt (GmbH) (4209)
    
 
    
        Copyright
        
    
 	
    
    
    
    
    
        Erfassungsdatum
        2025-04-10