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



Document title: Alpha-synuclein A53T mutation is not frequent on a sample of Brazilian Parkinson’s disease patients
Journal: Arquivos de neuro-psiquiatria
Database: PERIÓDICA
System number: 000382265
ISSN: 0004-282X
Authors: 1
2
3
2
2
1
1
1
4
1
1
1
Institutions: 1Faculdade de Medicina de Sao Jose do Rio Preto, Sao Jose do Rio Preto, Sao Paulo. Brasil
2Universidade de Sao Paulo, Faculdade de Medicina de Ribeirao Preto, Ribeirao Preto, Sao Paulo. Brasil
3Universidade de Franca, Franca, Sao Paulo. Brasil
4Universidade Federal de Sao Paulo, Sao Paulo. Brasil
Year:
Season: Jun
Volumen: 73
Number: 6
Pages: 506-509
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Aplicado, descriptivo
English abstract The pathogenesis of Parkinson’s disease (PD) involves both genetic susceptibility and environmental factors, with focus on the mutation in the alpha-synuclein gene (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 of SNCA-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 of SNCA-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
Portuguese abstract A patogênese da doença de Parkinson (DP) envolve fatores ambientais e suscetibilidade genética, destacando-se a mutação de alfa-sinucleína (SNCA.) Objetivos Analisar a variante genética SNCA-A53T em pacientes com DP familiar (DPF) e DP esporádica (DPE). Método Foram estudados 294 indivíduos, independente de sexo, com etnia miscigenada, sendo 154 com DP e 140 sem a doença (grupo controle). A genotipagem de SNCA-A53T foi realizada por PCR/RFLP. Nível de significância para p < 0,05. Resultados Entre os pacientes, 37(24%) tinham DPF e 117 (75,9%) DPE. A ausência da mutação SNCA-A53T em todos os indivíduos. Conclusão DPE é destacada entre os pacientes, no entanto a mutação SNCA-A53T ausente em todos os indivíduos, não diferenciando os grupo controle e pacientes, o que deve ser confirmado em população brasileira, considerando uma ampla casuística, além da ancestralidade
Disciplines: Medicina
Keyword: Neurología,
Genética,
Enfermedad de Parkinson,
Patogénesis,
Susceptibilidad genética,
Mutaciones,
Alfa sinucleína,
Polimorfismo genético
Keyword: Medicine,
Neurology,
Genetics,
Parkinson disease,
Pathogenesis,
Genetic susceptibility,
Mutations,
Alpha-synuclein,
Genetic polymorphism
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