Alpha-synuclein A53T mutation is not frequent on a sample of Brazilian Parkinson’s disease patients

Arquivos de Neuro-Psiquiatria

Gabriela S. Longo¹  Marcela A. S. Pinhel¹  Michele L. Gregório¹  Bruno A. P. Oliveira¹  Driele C. G. Quinhoneiro¹  Waldir A. Tognola¹  Fábio N. Oliveira¹  Denise Poltronieri Martins¹  Sabrina M. Cezario¹  Caroline L. Sado¹  Marcelo A. Nakazone¹  Maria C. J. Calastri¹  Dorotéia R. S. Souza¹ 

关键词: Parkinson’s disease;    alpha-synuclein;    mutation;    doença de Parkinson;    alfa sinucleína;    mutação;   

DOI  :  10.1590/0004-282X20150032

来源: SciELO

【 摘 要 】

Introduction The pathogenesis of Parkinson’s disease (PD) involves both genetic susceptibility and environmental factors, with focus on the mutation in thealpha-synucleingene (SNCA).Objective To analyse the polymorphism SNCA-A53T in patients with familial PD (FPD) and sporadic PD (SPD).Method A total of 294 individuals were studied, regardless of sex and with mixed ethnicity. The study group with 154 patients with PD, and the control group included 140 individuals without PD. The genotyping ofSNCA-A53T was performed by PCR/RFLP. Significance level was p < 0.05.Results Among all patients, 37 (24%) had FPD and 117 (75.9%) had SPD. The absence ofSNCA-A53T mutation was observed in all individuals.Conclusion SPD is notably observed in patients. However, the SNCA-A53T mutation was absent in all individuals, which does not differ controls from patients. This fact should be confirmed in a Brazilian study case with a more numerous and older population.

【 授权许可】

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