Mäki, J.M.* ; Kirjavainen, P.V.* ; Täubel, M.* ; Piippo-Savolainen, E.* ; Backman, K.* ; Hyvärinen, A.* ; Tuoresmäki, P.* ; Jayaprakash, B.* ; Heinrich, J. ; Herberth, G.* ; Standl, M. ; Pekkanen, J.* ; Karvonen, A.M.*
     
 
    
        
Associations between dog keeping and indoor dust microbiota.
    
    
        
    
    
        
        Sci. Rep. 11:5341 (2021)
    
    
    
		
		
			
				Living with dogs appears to protect against allergic diseases and airway infections, an effect possibly linked with immunomodulation by microbial exposures associated with dogs. The aim of this study was to characterize the influence of dog ownership on house dust microbiota composition. The bacterial and fungal microbiota was characterized with Illumina MiSeq sequencing from floor dust samples collected from homes in a Finnish rural-suburban (LUKAS2, N = 182) birth cohort, and the results were replicated in a German urban (LISA, N = 284) birth cohort. Human associated bacteria variable was created by summing up the relative abundances of five bacterial taxa. Bacterial richness, Shannon index and the relative abundances of seven bacterial genera, mostly within the phyla Proteobacteria and Firmicutes, were significantly higher in the dog than in the non-dog homes, whereas the relative abundance of human associated bacteria was lower. The results were largely replicated in LISA. Fungal microbiota richness and abundance of Leucosporidiella genus were higher in dog homes in LUKAS2 and the latter association replicated in LISA. Our study confirms that dog ownership is reproducibly associated with increased bacterial richness and diversity in house dust and identifies specific dog ownership-associated genera. Dogs appeared to have more limited influence on the fungal than bacterial indoor microbiota.
			
			
				
			
		 
		
			
				
					
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        Publikationstyp
        Artikel: Journalartikel
    
 
    
        Dokumenttyp
        Wissenschaftlicher Artikel
    
 
    
        Typ der Hochschulschrift
        
    
 
    
        Herausgeber
        
    
    
        Schlagwörter
        Endotoxin; Microorganisms; Determinants; Fungal; Life
    
 
    
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        Sprache
        englisch
    
 
    
        Veröffentlichungsjahr
        2021
    
 
    
        Prepublished im Jahr 
        
    
 
    
        HGF-Berichtsjahr
        2021
    
 
    
    
        ISSN (print) / ISBN
        2045-2322
    
 
    
        e-ISSN
        2045-2322
    
 
    
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	    Band: 11,  
	    Heft: 1,  
	    Seiten: ,  
	    Artikelnummer: 5341 
	    Supplement: ,  
	
    
 
  
        
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            Verlag
            Nature Publishing Group
        
 
        
            Verlagsort
            London
        
 
	
        
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        Begutachtungsstatus
        Peer reviewed
    
 
    
        Institut(e)
        Institute of Epidemiology (EPI)
    
 
    
        POF Topic(s)
        30202 - Environmental Health
    
 
    
        Forschungsfeld(er)
        Genetics and Epidemiology
    
 
    
        PSP-Element(e)
        G-504000-008
    
 
    
        Förderungen
        Kuopio Area Respiratory Foundation
Juho Vainio Foundation
Yrjo Jahnsson Foundation
Foundation for Pediatric Research
EVO/VTR-funding
Paivikki and Sakari Sohlberg Foundation
Finnish Cultural Foundation
Finnish Institute for Health and Welfare, Finland
Federal Ministry for Education, Science, Research and Technology
Helmholtz Zentrum Munich, Helmholtz Centre for Environmental Research-UFZ, Leipzig, Research Institute at Marien-Hospital Wesel
Academy of Finland
Academy of Finland as part of PROBIOM consortium
    
 
    
        Copyright
        
    
 	
    
    
    
    
    
        Erfassungsdatum
        2021-04-20