2012年9月2日 訊 /生物谷BIOON/ --新加坡科學家們近日發(fā)現(xiàn)與原發(fā)性閉角型青光眼(PACG)相關的三個新基因。原發(fā)性閉角型青光眼會影響全球15億人,,其中80%患者生活在亞洲,。
這項研究發(fā)表在著名科學雜志Nature Genetics上,新加坡眼科研究所(SERI)/新加坡全國眼科中心(SNEC),、新加坡基因組研究院(GIS)、新加坡國立大學(NUS)、新加坡國立大學醫(yī)院和陳篤生醫(yī)院眼科部共同合作完成研究,。
研究小組科學家領導對來自亞洲的1854例PACG患者和9,608例健康志愿者進行了全基因組關聯(lián)研究(GWAS)。他們對另外1,917原發(fā)性閉角型青光眼患和8,943志愿者進行了驗證性實驗,其中總共有1,293例原發(fā)性閉角型青光眼新加坡患者和8025名新加坡健康志愿者參加了這項研究,。這項工作是首次從全基因組的角度來研究原發(fā)性閉角型青光眼的遺傳學機制,。
該研究為證明遺傳因素在原發(fā)性閉角型青光眼的發(fā)病中發(fā)揮作用提供了充足的證據(jù),這項研究結(jié)果可能有助于新的治療方法的誕生,。
哈佛醫(yī)學院眼科教授Janey Wiggs教授補充說,,這是一個具有里程碑意義的研究,其確定了三個閉角型青光眼基因,,有助于更好地了解這種致盲性疾病的分子機制,。(生物谷:Bioon.com)
doi:10.1038/ng.2390
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Genome-wide association analyses identify three new susceptibility loci for primary angle closure glaucoma
Ronnie George,Li-Jia Chen,Tan Do,Khaled Abu-Amero,Chor Kai Huang,Sancy Low,Liza-Sharmini A Tajudin,Shamira A Perera,Ching-Yu Cheng,Liang Xu,Hongyan Jia,Ching-Lin Ho,Kar Seng Sim,et al.
Primary angle closure glaucoma (PACG) is a major cause of blindness worldwide. We conducted a genome-wide association study including 1,854 PACG cases and 9,608 controls across 5 sample collections in Asia. Replication experiments were conducted in 1,917 PACG cases and 8,943 controls collected from a further 6 sample collections. We report significant associations at three new loci: rs11024102 in PLEKHA7 (per-allele odds ratio (OR) = 1.22; P = 5.33 × 10−12), rs3753841 in COL11A1 (per-allele OR = 1.20; P = 9.22 × 10−10) and rs1015213 located between PCMTD1 and ST18 on chromosome 8q (per-allele OR = 1.50; P = 3.29 × 10−9). Our findings, accumulated across these independent worldwide collections, suggest possible mechanisms explaining the pathogenesis of PACG.