RESUMO
We studied multiple sclerosis (MS) patients with the HLA-DQB1*06:02 allele and compared them with MS patients who did not carry the HLA-DQB1*06:02 allele. We analyzed clinical and neurophysiological criteria for narcolepsy in six MS patients with HLA-DQB1*06:02, compared with 12 MS patients who were HLA-DQB1*06:02 non-carriers. Only two patients with HLA-DQB1*06:02 allele scored higher than 10 on the Epworth Sleepiness Scale. Polysomnography recording parameters and the multiple sleep latency test showed an absence of narcolepsy in the study group. Our study suggested no significant correlation between narcolepsy, MS and HLA-DQB1*06:02. The HLA-DQB1*06:02 allele alone was not sufficient to cause MS patients to develop narcolepsy.
Assuntos
Cadeias beta de HLA-DQ/genética , Esclerose Múltipla/complicações , Narcolepsia/etiologia , Adulto , Idoso , Feminino , Frequência do Gene , Genótipo , Humanos , Masculino , Pessoa de Meia-Idade , Esclerose Múltipla/genética , Narcolepsia/diagnóstico , Narcolepsia/genética , Polissonografia , Adulto JovemRESUMO
ABSTRACT We studied multiple sclerosis (MS) patients with the HLA-DQB1*06:02 allele and compared them with MS patients who did not carry the HLA-DQB1*06:02 allele. We analyzed clinical and neurophysiological criteria for narcolepsy in six MS patients with HLA-DQB1*06:02, compared with 12 MS patients who were HLA-DQB1*06:02 non-carriers. Only two patients with HLA-DQB1*06:02 allele scored higher than 10 on the Epworth Sleepiness Scale. Polysomnography recording parameters and the multiple sleep latency test showed an absence of narcolepsy in the study group. Our study suggested no significant correlation between narcolepsy, MS and HLA-DQB1*06:02. The HLA-DQB1*06:02 allele alone was not sufficient to cause MS patients to develop narcolepsy.
RESUMO Pacientes com esclerose múltipla (EM) portadores do alelo HLA-DQB1*06:02 foram estudados e comparados com pacientes com EM mas que não são portadores do alelo HLA-DQB1*06:02. Os critérios clínicos e neurofisiológicos para narcolepsia foram analisados em pacientes com EM sendo 6 pacientes com o HLA-DQB1*06:02 comparados a 12 pacientes sem o HLA-DQB1*06:02. Somente 2 pacientes com EM e HLA-DQB1*06:02 tiveram escore maior que 10 na escala “Epworth Sleepiness Scale”. Os parâmetros da polissonografia e o teste de múltiplas latências do sono mostraram ausência de narcolepsia no grupo estudo. Nosso estudo não sugere correlações significantes entre narcolepsia, EM e HLA-DQB1*06:02. Somente o HLA-DQB1*06:02 não foi suficiente para desenvolver narcolepsia em pacientes com EM.
