Randrianarisoa, E. ; Lehn-Stefan, A. ; Hieronimus, A. ; Wagner, R. ; Maucher, J.* ; Rittig, K.* ; Balletshofer, B.* ; Birkenfeld, A.L. ; Peter, A. ; Stefan, N. ; Häring, H.-U. ; Fritsche, A. ; Heni, M.
     
    
        
Reduced insulin clearance is linked to subclinical atherosclerosis in individuals at risk for type 2 diabetes mellitus.
    
    
        
    
    
        
        Sci. Rep. 10:22453 (2020)
    
    
    
      
      
	
	    Hyperglycemia and insulin resistance contribute to vascular damage and are regulated by different pathophysiological processes. The aim of the study was to systematically investigate the relative contributions of multiple fasting state- and oral glucose tolerance test (oGTT)-derived glycemic traits to carotid intima-media thickness (cIMT), a surrogate parameter of subclinical atherosclerosis, in individuals with increased risk for type 2 diabetes mellitus (T2D). 667 volunteers (417 women and 250 men, mean age 44.1 years), who were free of cardiovascular disease (CVD), were included in this cross-sectional study. Glucose tolerance, insulin sensitivity, insulin secretion and insulin clearance were assessed by frequently sampled 75 g oGTT. CIMT was measured by high-resolution ultrasound. Insulin clearance was associated with cIMT in univariate analysis (ßst = − 0.17, p < 0.0001) and in a stepwise regression analysis on 15 variables possibly affecting cIMT, age (r2 = 0.3923, p < 0.0001), insulin clearance (r2 = 0.4564, p < 0.0001), systolic blood pressure (r2 = 0.4733, p < 0.0001), body mass index (BMI) (r2 = 0.4804, p = 0.002), gender (r2 = 0.4831, p = 0.013), and fasting insulin clearance (r2 = 0.4857, p = 0.030) turned out to be significant determinants of cIMT. In a cross-validated model resulting from this analysis, insulin clearance was found to be an independent determinant of cIMT (ßst = − 0.16, p < 0.0001) even after adjusting for traditional CVD risk factors. Reduced insulin clearance may be an early marker of damage on the vasculature, independent of classical CVD risk factors. Reduced insulin clearance should be considered with regard to vascular insulin resistance.
	
	
	    
	
       
      
	
	    
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        Publication type
        Article: Journal article
    
 
    
        Document type
        Scientific Article
    
 
    
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        Keywords
        Intima-media Thickness; Carotid-artery Intima; Fasting Glucose; Resistance; Disease; Hemoglobin; Obesity; Stroke
    
 
    
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        Language
        english
    
 
    
        Publication Year
        2020
    
 
    
        Prepublished in Year
        
    
 
    
        HGF-reported in Year
        2020
    
 
    
    
        ISSN (print) / ISBN
        2045-2322
    
 
    
        e-ISSN
        2045-2322
    
 
    
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	    Volume: 10,  
	    Issue: 1,  
	    Pages: ,  
	    Article Number: 22453 
	    Supplement: ,  
	
    
 
    
        
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            Publisher
            Nature Publishing Group
        
 
        
            Publishing Place
            London
        
 
	
        
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        Reviewing status
        Peer reviewed
    
 
     
    
        POF-Topic(s)
        90000 - German Center for Diabetes Research
    
 
    
        Research field(s)
        Helmholtz Diabetes Center
    
 
    
        PSP Element(s)
        G-502400-001
    
 
    
        Grants
        Projekt DEAL
German Federal Ministry of Education and Research (BMBF)
Open Access Publishing Fund of University of Tubingen
    
 
    
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        Erfassungsdatum
        2021-01-07