ANALYSIS OF A CHINESE POPULATION SUGGESTS THAT THE TNFB GENE IS NOT A SUSCEPTIBILITY GENE FOR GRAVES-DISEASE

被引:4
作者
CAVAN, DA
PENNY, MA
JACOBS, KH
KELLY, MA
JENKINS, D
MIJOVIC, CH
CHOW, CC
COCKRAM, CS
HAWKINS, BR
BARNETT, AH
机构
[1] UNIV BIRMINGHAM,DEPT MED,BIRMINGHAM,ENGLAND
[2] BIRMINGHAM HEARTLANDS HOSP,BIRMINGHAM,W MIDLANDS,ENGLAND
[3] CHINESE UNIV HONG KONG,DEPT MED,HONG KONG,HONG KONG
[4] UNIV HONG KONG,DEPT PATHOL,HONG KONG,HONG KONG
基金
英国惠康基金;
关键词
D O I
10.1016/0198-8859(94)90058-2
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
Graves' disease is associated with different HLA genes in different races. The TNFB gene lies between the class I and class II HLA genes and has two alleles, TNFB*1 and TNFB*2. Studies in Caucasians have suggested that the TNFB gene might be a susceptibility gene for Graves' disease. To investigate further the role of TNFB in predisposition to Graves' disease, we determined whether the TNFB disease associations in the Chinese were similar to those in Caucasians. A total of 57 patients with Graves' disease (32 male) were studied. A TNFB gene fragment was amplified from genomic DNA by using the polymerase chain reaction and digested with Nco I to distinguish the TNFB alleles (TNFB*1 and TNFB*2). Genotype frequencies were compared with those in a racially matched group of 32 controls. TNFB*1 homozygosity occurred in 15 (26%) Graves' and 22 (24%) control subjects. TNFB*1/TNFB*2 heterozygosity occurred in 29 (51%) and 48 (52%) and TNFB*2 homozygosity in 13 (23%) and 22 (24%), respectively (NS). There were gender differences in the frequencies of TNFB*1 homozygosity (13 male [41%], 2 female [8%]) TNFB*1/TNFB*2 heterozygosity (13 male [41%], 16 female [64%]) (x(2) = 7.3, p = 0.02), and TNFB*2 frequency (19 male [53%], 23 female [92%]; p(c) = 0.04) in Graves' patients. We conclude that the TNFB associations with Graves' disease in the Hong Kong Chinese differ between the genders and from those described in Caucasians. The TNFB gene is not a susceptibility gene for Graves' disease.
引用
收藏
页码:135 / 137
页数:3
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