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  • Title: Dopamine receptor gene polymorphisms in Parkinson's disease patients reporting "sleep attacks".
    Author: Rissling I, Geller F, Bandmann O, Stiasny-Kolster K, Körner Y, Meindorfner C, Krüger HP, Oertel WH, Möller JC.
    Journal: Mov Disord; 2004 Nov; 19(11):1279-84. PubMed ID: 15390060.
    Abstract:
    Genes encoding proteins involved in dopaminergic transmission are potential candidate genes for the induction of somnolence in Parkinson's disease (PD) because dopaminergic agents have been shown to be associated with sudden onset of sleep (SOS) in PD. We conducted an association study on dopamine D2, D3, and D4 receptor gene polymorphisms comparing 137 PD patients with SOS and 137 PD patients without SOS matched according to drug therapy, disease duration, sex, and age. Our results show a significant association between the dopamine D2 receptor gene polymorphism Taq IA and SOS in PD. No significant association between two other investigated polymorphisms and the phenomenon of "sleep attacks" in PD was observed.
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