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    Cytokine levels in children and adults with wheezing and asthma show specific patterns of variability over time.
        
        Clin. Exp. Immunol., DOI: 10.1111/cei.13550 (2020)
    
    
				Levels of cytokines are used for in-depth characterization of patients with asthma; however, the variability over time might be a critical confounder. To analyze the course of serum cytokines in children, adolescents and adults with asthma and in healthy controls and to propose statistical methods to control for seasonal effects. Of 532 screened subjects, 514 (91 center dot 5%) were included in the All Age Asthma Cohort (ALLIANCE). The cohort included 279 children with either recurrent wheezing bronchitis (more than two episodes) or doctor-diagnosed asthma, 75 healthy controls, 150 adult asthmatics and 31 adult healthy controls. Blood samples were collected and 25 mu l serum was used for analysis with the Bio-Plex Pr human cytokine 27-Plex assay. Mean age, body mass index and gender in the three groups of wheezers, asthmatic children and adult asthmatics were comparable to healthy controls. Wheezers (34 center dot 5%), asthmatic children (78 center dot 7%) and adult asthmatics (62 center dot 8%) were significantly more often sensitized compared to controls (4 center dot 5, 22 and 22 center dot 6%, respectively). Considering the entire cohort, interleukin (IL)-1ra, IL-4, IL-9, IL-17, macrophage inflammatory protein (MIP)-1-alpha and tumor necrosis factor (TNF)-alpha showed seasonal variability, whereas IL-1 beta, IL-7, IL-8, IL-13, eotaxin, granulocyte colony-stimulating factor (G-CSF), interferon gamma-induced protein (IP)-10, MIP-1 beta and platelet-derived growth factor (PDGF)-BB did not. Significant differences between wheezers/asthmatics and healthy controls were observed for IL-17 and PDGF-BB, which remained stable after adjustment for the seasonality of IL-17. Seasonality has a significant impact on serum cytokine levels in patients with asthma. Because endotyping has achieved clinical importance to guide individualized patient-tailored therapy, it is important to account for seasonal effects.
			
			
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        Publikationstyp
        Artikel: Journalartikel
    
 
    
        Dokumenttyp
        Wissenschaftlicher Artikel
    
 
     
    
    
        Schlagwörter
        Adults ; Asthma ; Cytokines ; Season ; Variability ; Wheeze ; Children; Vitamin-d Supplementation; Gene-expression; Dendritic Cells; Age; Responses; Stimulation; Infection; Distinct; Gender; Il-17
    
 
     
    
    
        Sprache
        englisch
    
 
    
        Veröffentlichungsjahr
        2020
    
 
     
    
        HGF-Berichtsjahr
        2020
    
 
    
    
        ISSN (print) / ISBN
        0009-9104
    
 
    
        e-ISSN
        1365-2249
    
 
     
     
     
	     
	 
	 
    
        Zeitschrift
        Clinical & Experimental Immunology
    
 
		
     
  
         
        
            Verlag
            Wiley
        
 
        
            Verlagsort
            111 River St, Hoboken 07030-5774, Nj Usa
        
 
	
         
         
         
         
         
	
         
         
         
    
         
         
         
         
         
         
         
    
        Begutachtungsstatus
        Peer reviewed
    
 
    
        Institut(e)
        Institute of Asthma and Allergy Prevention (IAP)
    
 
    
        POF Topic(s)
        30202 - Environmental Health
    
 
    
        Forschungsfeld(er)
        Allergy	
    
 
    
        PSP-Element(e)
        G-503300-001
    
 
    
        Förderungen
        Bundesministerium für Bildung und Forschung
    
 
     	
    
    
        WOS ID
        WOS:000598680400001
    
    
        PubMed ID
        33202033
    
    
        Erfassungsdatum
        2021-02-04