Association of the gene polymorphism of cytotoxic T lymphocyte-associated antigen-4 with Graves ophthalmopathy in Qinghai Tibetans / 中华内分泌代谢杂志

ABSTRACT

To investigate the association of the gene polymorphism of cytotoxic T lymphocyte-associated antigen-4(CTLA-4)with Graves'ophthalmopathy(GO)in Qinghai Tibetans. 130 case of Graves'disease(GD)were selected from June 2013 to November 2016 in The People's Hospital of Qinghai Province. These patients were assigned into 2 groups,GO(n=71)and GD without GO(n=59). The genotypes and alleles of CTLA-4 gene were detected by polymerase chain reaction-restriction fragment length polymorphism(PCR-RFLP). Distribution of CTLA-4 exon 1 (+49A/G)genotype frequencies(AA,AG,and GG)was different between 2 groups.