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    Title: Polymorphic Ala-allele carriers at residue 1170 of HER2 associated with Parkinson's disease
    Authors: Wang V;Chuang, Tzu-Chao;Kao MC;Shan DE;Soong BW;Shieh TM
    Contributors: 淡江大學化學學系
    Keywords: Parkinson's disease;Polymorphism;Ala carrier;HER2
    Date: 2013-02
    Issue Date: 2014-08-13 12:08:14 (UTC+8)
    Publisher: Amsterdam: Elsevier BV
    Abstract: Objective
    HER2, a receptor tyrosine kinase, was originally identified based on its role in cancer research. The protein has subsequently received attention for its role in nerve injury and neurodevelopment. We investigated the polymorphic association of HER2 variants at amino acid residues 655 and 1170 with Parkinson's disease (PD), a neurodegenerative disorder.
    Design and methods
    Polymerase chain reaction (PCR) was used to amplify DNA samples from PD patients and control subjects. The resulting PCR fragments, which spanned HER2 residues 655 and 1170, were analyzed by restriction fragment length polymorphism and/or direct nucleotide sequencing.
    Results
    The genetic distribution at residue 655 in PD patients did not differ from that in controls. However, homozygosity for genes encoding Pro at residue 1170 (Pro/Pro) occurred at a significantly lower rate among PD subjects. In other words, Ala-allele carries higher frequency in PD, especially among female PD subjects.
    Conclusion
    Different signals or potency of the kinase activities resulting from the Ala1170Pro allele of HER2 may be associated with vulnerability to stress on dopaminergic neurons in PD.
    Relation: Journal of the Neurological Sciences 325(1), pp.115-119
    DOI: 10.1016/j.jns.2012.12.017
    Appears in Collections:[Graduate Institute & Department of Chemistry] Journal Article

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