HLA-DPA1 gene polymorphism in primary glaucoma

OBJECTIVE: To explore the association between human leukocyte antigen (HLA)-DPA1 gene polymorphism and primary glaucoma. PATIENTS AND METHODS: Six single nucleotide polymorphisms (SNPs) were genotyped in 51 patients and 51 healthy controls through Polymerase Chain Reaction (PCR). The possible association between HLA-DPA1 gene mutation and primary glaucoma was detected using the t-test and the Chi-square test. RESULTS: Rs1676486 genotype had a significant genetic correlation. Rs3753841 and rs12138977 genotypes had a higher minor-allele frequency in control group. The CT + CC genotype frequency of rs12138977 showed a significant genetic correlation in both case group and control group. Moreover, the rs12138977 polymorphism and corneal thickness had little influence on the occurrence of primary angle-closure glaucoma (PACG). Also, the main risk factors for PACG were intraocular hypertension and short axial length. CONCLUSIONS: The HLA-DPA1 gene polymorphism may be related to the severity of PACG.