Evaluation of Primary Angle-Closure Glaucoma Susceptibility Loci for Estimating Angle Closure Disease Severity

医学 优势比 单核苷酸多态性 全基因组关联研究 青光眼 内科学 SNP公司 逻辑回归 病例对照研究 基因分型 眼科 遗传学 基因型 生物 基因
作者
Chang Liu,Monisha E. Nongpiur,Ching‐Yu Cheng,Chiea Chuen Khor,Marco Yu,Rahat Husain,Ching Lin Ho,Tina Wong,Pui Yi Boey,Shamira Perera,Tien Yin Wong,Eranga N. Vithana,Tin Aung
出处
期刊:Ophthalmology [Elsevier BV]
卷期号:128 (3): 403-409 被引量:14
标识
DOI:10.1016/j.ophtha.2020.07.027
摘要

PurposeTo investigate whether recently identified genetic loci for primary angle-closure glaucoma (PACG) are associated with disease severity.DesignCase-control study.ParticipantsEight hundred four PACG patients and 943 control participants of Chinese ethnicity from Singapore.MethodsThe 8 PACG-associated single nucleotide polymorphisms (SNPs; rs11024102 at PLEKHA7, rs3753841 at COL11A1, rs1015213 located between PCMTD1 and ST18 on chromosome 8q, rs3816415 at EPDR1, rs1258267 at CHAT, rs736893 at GLIS3, rs7494379 at FERMT2, and rs3739821 mapping in between DPM2 and FAM102A) identified from genome-wide association studies were tested for association with disease severity using logistic regression adjusted for age and gender. A P value of 0.006 was set as significant after Bonferroni correction for testing of 8 loci. We also calculated the weighted genetic risk score (GRS) weighted by the estimated individual SNP effect size on PACG calculated as logarithm of the odds ratio (OR). Disease severity was based on the visual field mean deviation (MD) and classified as early to moderate (MD, >–12 dB) and severe (MD, <–20 dB).Main Outcome MeasuresAssociation of PACG loci with severe disease.ResultsOf the 804 PACG patients, genotyping data were available for 768 individuals and included 436 with mild-to-moderate PACG and 206 with severe PACG. The PACG patients were significantly older (mean age, 64.3 ± 9.1 years vs. 56.4 ± 8.9 years; P < 0.001) and there were proportionately more women compared with control participants (58.4% vs. 49.0%; P < 0.001). Of the 8 loci investigated, we observed significant evidence of association with severe PACG at 1 SNP, namely rs3816415 in EPDR1 (OR, 2.03; 95% confidence interval [CI], 1.49–2.78; P = 1 × 10–5). A higher-weighted GRS was associated significantly with severe PACG, with an OR of 3.11 (95% CI, 1.95–4.96) comparing the lowest quartile with the highest quartile.ConclusionsOur results show that EPDR1 is associated significantly with severe PACG, suggesting that it may predispose patients to more aggressive disease development. Individuals with PACG with a higher GRS were associated with a higher risk of severe PACG. To investigate whether recently identified genetic loci for primary angle-closure glaucoma (PACG) are associated with disease severity. Case-control study. Eight hundred four PACG patients and 943 control participants of Chinese ethnicity from Singapore. The 8 PACG-associated single nucleotide polymorphisms (SNPs; rs11024102 at PLEKHA7, rs3753841 at COL11A1, rs1015213 located between PCMTD1 and ST18 on chromosome 8q, rs3816415 at EPDR1, rs1258267 at CHAT, rs736893 at GLIS3, rs7494379 at FERMT2, and rs3739821 mapping in between DPM2 and FAM102A) identified from genome-wide association studies were tested for association with disease severity using logistic regression adjusted for age and gender. A P value of 0.006 was set as significant after Bonferroni correction for testing of 8 loci. We also calculated the weighted genetic risk score (GRS) weighted by the estimated individual SNP effect size on PACG calculated as logarithm of the odds ratio (OR). Disease severity was based on the visual field mean deviation (MD) and classified as early to moderate (MD, >–12 dB) and severe (MD, <–20 dB). Association of PACG loci with severe disease. Of the 804 PACG patients, genotyping data were available for 768 individuals and included 436 with mild-to-moderate PACG and 206 with severe PACG. The PACG patients were significantly older (mean age, 64.3 ± 9.1 years vs. 56.4 ± 8.9 years; P < 0.001) and there were proportionately more women compared with control participants (58.4% vs. 49.0%; P < 0.001). Of the 8 loci investigated, we observed significant evidence of association with severe PACG at 1 SNP, namely rs3816415 in EPDR1 (OR, 2.03; 95% confidence interval [CI], 1.49–2.78; P = 1 × 10–5). A higher-weighted GRS was associated significantly with severe PACG, with an OR of 3.11 (95% CI, 1.95–4.96) comparing the lowest quartile with the highest quartile. Our results show that EPDR1 is associated significantly with severe PACG, suggesting that it may predispose patients to more aggressive disease development. Individuals with PACG with a higher GRS were associated with a higher risk of severe PACG.
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