I. Purpose : To identify protein-altering variants associated with glaucoma development among Korean glaucoma patients. Genetic variations as well as clinical informations from the Korean glaucoma patients has been analyzed to provide glaucoma detecti...
I. Purpose : To identify protein-altering variants associated with glaucoma development among Korean glaucoma patients. Genetic variations as well as clinical informations from the Korean glaucoma patients has been analyzed to provide glaucoma detection prediction model and a new paradigm for glaucoma management.
II. Methods : We recruited 619 Korean glaucoma patients (309 for discovery sample and 310 for validation sample) from Seoul National University Hospital and genetic data of 11,012 healthy population control (5,400 for discovery sample and 5,612 for validation sample) from National Biobank of Korea. The genetic database has been established including the DNA data as well as the subjects’ clinical information. Genotyping with HumanExome BeadChip v1.0 (Illumina Inc.) has been performed and the genetic data were analyzed to calculate an odds ratio as an estimate of the realtive risk of glaucoma development.
III. Results : After analysis of 40,763 SNPs with minor allele frequency > 0.05%, IVL (rs138980799, H162R), LRRC27 (rs116121322, V189I), METTL20 (rs191590289, D194V) were significantly associated with glaucoma development. In rare variant association analysis using SKAT-O, the combination of 3 SNPs in METTL20, rs149097385 (N172S), rs143179970 (D188N), rs191590289 (D194V), were significantly associated with glaucoma development (P = 0.006). However, none of the genetic variations reached statistical significance in validation sample. Previously known genetic loci associated with glaucoma development from different ethnicity, CDKN2B-AS1 (rs2157719, rs1063192), TMCO1 (rs10483727), showed consistent findings from the present Korean population.
IV. Conclusion : The present data can be used clinically for the detection of glaucoma and its management. In addition, it can be further applied to the development of glaucoma progression prediction model and early prevention of severe complication of glaucoma including blindness. The present data can be further utilized in meta-analysis with the data from different ethnicities, and may shed light on the pathogenesis of glaucoma.