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Journal of Huazhong University of Science and Technology (Medical Sciences) ; (6): 145-7, 2003.
Artigo em Inglês | WPRIM | ID: wpr-634060

RESUMO

To investigate the distribution of possible novel mutations from parkin gene in variant subset of patients with Parkinson's disease (PD) in China and explore whether parkin gene plays an important role in the pathogenesis of PD, 70 patients were divided into early-onset group and late-onset group; 70 healthy subjects were included as controls. Genomic DNA from 70 normal controls and from those of PD patients were extracted from peripheral blood leukocytes by using standard procedures. Mutations of parkin gene (exon 1-12) in all the subjects were screened by PCR-single strand conformation polymorphism (SSCP), and further sequencing was performed in the samples with abnormal SSCP results, in order to confirm the mutation and its location. A new missense mutation Gly284Arg in a patient and 3 abnormal bands in SSCP electrophoresis from samples of another 3 patients were found. All the DNA variants were sourced from the samples of the patients with early-onset PD. It was concluded that Parkin point mutation also partially contributes to the development of early-onset Parkinson's disease in Chinese.


Assuntos
Análise Mutacional de DNA , Éxons , Genótipo , Doença de Parkinson/genética , Mutação Puntual , Polimorfismo Conformacional de Fita Simples , Ubiquitina-Proteína Ligases/biossíntese , Ubiquitina-Proteína Ligases/genética
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