Association of Cytotoxic T Lymphocyte Antigen-4 Gene Polymorphisms and HLA Class II Alleles with the Development of Type 1 Diabetes in Korean Children and Adolescents
Journal of Korean Medical Science
; : 1004-1009, 2009.
Article
в En
| WPRIM
| ID: wpr-78432
Ответственная библиотека:
WPRO
ABSTRACT
We studied the association of cytotoxic T lymphocyte antigen-4 gene (CTLA4) polymorphisms with the development of type 1 diabetes (T1D) in Korean children and adolescents. A total of 176 Korean subjects (92 females and 84 males) with childhood-onset T1D were studied. The A/G polymorphism at position 49 in CTLA4 exon 1 and the C/T polymorphism at position -318 in the CTLA4 promoter were analyzed by PCR-RFLP methods. The genotype and allele frequencies of the CTLA4 polymorphisms in the T1D patients were not different from those in the controls. These polymorphisms were not associated with the clinical characteristics or the development of autoimmune thyroid disease in the T1D patients. The frequency of the A allele was significantly higher in the patients that did not have two out of the three susceptible HLA-DRB1 alleles, which were DRB1*0301, *0405 and *09012, compared to the controls (P<0.05). These results suggest that CTLA4 polymorphisms do not directly confer any susceptibility to T1D. However, a CTLA4-mediated susceptibility effect on the development of T1D might be significant in children and adolescents that do not have susceptible HLA class II alleles.
Key words
Полный текст:
1
База данных:
WPRIM
Основная тема:
Polymorphism, Genetic
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Histocompatibility Antigens Class II
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Antigens, CD
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Asian People
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Diabetes Mellitus, Type 1
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Alleles
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Korea
Пределы темы:
Adolescent
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Child
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Child, preschool
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Female
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Humans
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Male
Страна как тема:
Asia
Язык:
En
Журнал:
Journal of Korean Medical Science
Год:
2009
Тип:
Article