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    Radioadaptive response revisited.
        
        Radiat. Environ. Biophys. 46, 1-12 (2007)
    
    
    
				Radiation-induced adaptive response belongs to the group of non-targeted effects that do not require direct exposure of the cell nucleus by radiation. It is described as the reduced damaging effect of a challenging radiation dose when induced by a previous low priming dose. Adaptive responses have been observed in vitro and in vivo using various indicators of cellular damage, such as cell lethality, chromosomal aberrations, mutation induction, radiosensitivity, and DNA repair. Adaptive response can be divided into three successive biological phenomena, the intracellular response, the extracellular signal, and the maintenance. The intracellular response leading to adaptation of a single cell is a complex biological process including induction or suppression of gene groups. An extracellular signal, the nature of which is unknown, may be sent by the affected cell to neighbouring cells causing them to adapt as well. This occurs either by a release of diffusible signalling molecules or by gap-junction intercellular communication. Adaptive response can be maintained for periods ranging from of a few hours to several months. Constantly increased levels of reactive oxygen species (ROS) or nitric oxide (NO) have been observed in adapted cells and both factors may play a role in the maintenance process. Although adaptive response seems to function by an on/off principle, it is a phenomenon showing a high degree of inter- and intraindividual variability. It remains to be seen to what extent adaptive response is functional in humans at relevant dose and dose-rate exposures. A better understanding of adaptive response and other non-targeted effects is needed before they can be confirmed as risk estimate factors for the human population at low levels of ionising radiation.
			
			
		Impact Factor
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Times Cited
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				1.090
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					126
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        Publikationstyp
        Artikel: Journalartikel
    
 
    
        Dokumenttyp
        Wissenschaftlicher Artikel
    
 
     
    
     
     
    
    
        Sprache
        englisch
    
 
    
        Veröffentlichungsjahr
        2007
    
 
     
    
        HGF-Berichtsjahr
        0
    
 
    
    
        ISSN (print) / ISBN
        0301-634X
    
 
    
        e-ISSN
        1432-2099
    
 
     
     
     
	     
	 
	 
    
        Zeitschrift
        Radiation and Environmental Biophysics
    
 
		
    
        Quellenangaben
        
	    Band: 46,  
	    Heft: 1,  
	    Seiten: 1-12 
	    
	    
	
    
 
  
         
        
            Verlag
            Springer
        
 
         
	
         
         
         
         
         
	
         
         
         
    
         
         
         
         
         
         
         
    
        Begutachtungsstatus
        Peer reviewed
    
 
    
        Institut(e)
        Institute of Radiation Protection (ISS)
    
 
    
        POF Topic(s)
        30504 - Mechanisms of Genetic and Environmental Influences on Health and Disease
    
 
    
        Forschungsfeld(er)
        Radiation Sciences
    
 
    
        PSP-Element(e)
        G-501100-004
    
 
     
     	
    
        PubMed ID
        17131131
    
    
    
        WOS ID
        000245749400001
    
    
        Scopus ID
        33847608750
    
    
        Erfassungsdatum
        2007-04-03