Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
		
    Consistent skin alpha-synuclein positivity in REM sleep behavior disorder-A two center two-to-four-year follow-up study.
        
        Parkinsonism Relat. Disord. 86, 108-113 (2021)
    
    
    
				Objective/methods: Phosphorylated alpha-synuclein (p-syn) in dermal nerves of patients with isolated REM sleep behavior disorder (iRBD) is detectable by immunofluorescence-labeling. Skin-biopsy-p-syn-positivity was recently postulated to be a prodromal marker of Parkinson's disease (PD) or related synucleinopathies. Here, we provide two-to four-year clinical and skin biopsy follow-up data of 33 iRBD patients, whose skin biopsy findings at baseline were reported in 2017. Results: Follow-up biopsies were available from 25 patients (18 positive at baseline) and showed consistent findings over time in 24 patients. One patient converted from skin-biopsy-negativity to -positivity. P-syn-positivity was observed in iRBD patients who still had a normal FP-CIT-SPECT two years later. Clinically, five of the 23 at baseline skin-biopsy-positive patients (21.7%) had converted to PD or dementia with Lewy bodies at follow-up, but none of the skin-biopsy-negative patients. Conclusions: Dermal p-syn in iRBD is most probably an early consistent marker of synucleinopathy and may support other indicators of conversion to manifest disease state.
			
			
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        Publikationstyp
        Artikel: Journalartikel
    
 
    
        Dokumenttyp
        Wissenschaftlicher Artikel
    
 
     
    
    
        Schlagwörter
        Alpha-synuclein ; Skin Biopsy ; Rem Sleep Behavior Disorder ; Dopamine Transporter Spect ; Parkinsons's Disease; Parkinsons-disease; Deposits; Diagnosis
    
 
     
    
    
        Sprache
        englisch
    
 
    
        Veröffentlichungsjahr
        2021
    
 
     
    
        HGF-Berichtsjahr
        2021
    
 
    
    
        ISSN (print) / ISBN
        1353-8020
    
 
    
        e-ISSN
        1873-5126
    
 
     
     
     
	     
	 
	 
    
        Zeitschrift
        Parkinsonism & Related Disorders
    
 
		
    
        Quellenangaben
        
	    Band: 86,  
	    
	    Seiten: 108-113 
	    
	    
	
    
 
  
         
        
            Verlag
            Elsevier
        
 
        
            Verlagsort
            The Boulevard, Langford Lane, Kidlington, Oxford Ox5 1gb, Oxon, England
        
 
	
         
         
         
         
         
	
         
         
         
    
         
         
         
         
         
         
         
    
        Begutachtungsstatus
        Peer reviewed
    
 
    
        Institut(e)
        Institute of Neurogenomics (ING)
    
 
    
        POF Topic(s)
        30205 - Bioengineering and Digital Health
    
 
    
        Forschungsfeld(er)
        Genetics and Epidemiology
    
 
    
        PSP-Element(e)
        G-503200-001
    
 
    
        Förderungen
        grant of International Parkinson Fonds
    
 
     	
    
    
        WOS ID
        WOS:000658803800024
    
    
        Erfassungsdatum
        2021-07-05