Zhonghua yi xue za zhi · 2011
[Correlation study between Chinese myasthenia gravis patients from Guangdong province and the polymorphism of HLA immunogene].
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Feng Hui-yu, Luo Min, Liu Wei-bin, Xiao Lu-lu, Qiu Li, Huang Xin, Huang Ru-xun
Аннотация
OBJECTIVE: To explore the correlation between Chinese myasthenia gravis (MG) patients from Guangdong province and the polymorphism of HLA immunogene.
METHODS: The genotypes of HLA-A, B and DRB1 alleles in 104 MG patients and 121 healthy blood donors were detected by PCR-SBT (polymerase chain reaction-sequencing-based typing).
RESULTS: (1) There were 15 alleles at A locus, 32 at B locus and 23 at DRB1 locus in MG group. (2) The frequency of HLA-A*02:07(P = 0.000, RR = 3.715), -B*46:01(P = 0.000, RR = 5.698), -DRB1*04:03(P = 0.033, RR = 6.312), -DRB1*09:01(P = 0.000, RR = 5.884) in MG patients was higher than that in healthy controls. (3) There were positive associations of HLA-DRB1*09:01(P = 0.000, RR = 1.349) with juvenile-onset ocular MG.
CONCLUSION: There is susceptibility association of HLA-A*02:07, -B*46:01, -DRB1*04:03, -DRB1*09:01 with Chinese MG patients from Guangdong province. There is a close genetic and immunological correlation between HLA alleles and the pathogenesis of MG. It has directional significance in the race and region incidence study, clinical classification, differential diagnosis, treatment and prognosis of MG.
METHODS: The genotypes of HLA-A, B and DRB1 alleles in 104 MG patients and 121 healthy blood donors were detected by PCR-SBT (polymerase chain reaction-sequencing-based typing).
RESULTS: (1) There were 15 alleles at A locus, 32 at B locus and 23 at DRB1 locus in MG group. (2) The frequency of HLA-A*02:07(P = 0.000, RR = 3.715), -B*46:01(P = 0.000, RR = 5.698), -DRB1*04:03(P = 0.033, RR = 6.312), -DRB1*09:01(P = 0.000, RR = 5.884) in MG patients was higher than that in healthy controls. (3) There were positive associations of HLA-DRB1*09:01(P = 0.000, RR = 1.349) with juvenile-onset ocular MG.
CONCLUSION: There is susceptibility association of HLA-A*02:07, -B*46:01, -DRB1*04:03, -DRB1*09:01 with Chinese MG patients from Guangdong province. There is a close genetic and immunological correlation between HLA alleles and the pathogenesis of MG. It has directional significance in the race and region incidence study, clinical classification, differential diagnosis, treatment and prognosis of MG.