临床研究
ENGLISH ABSTRACT
LIPC基因rs10468017多态性与年龄相关性黄斑变性易感性关系的Meta分析
顾虹
徐张幸
沈肇萌
李志国
作者及单位信息
·
DOI: 10.3760/cma.j.cn115989-20191117-00498
Association between LIPC gene rs10468017 polymorphism and the susceptibility to age-related macular degeneration: a Meta-analysis
Gu Hong
Xu Zhangxing
Shen Zhaomeng
Li Zhiguo
Authors Info & Affiliations
Gu Hong
Ningbo Medical Center Li Huili Hospital, Ningbo 315040, China
Xu Zhangxing
Ningbo Medical Center Li Huili Hospital, Ningbo 315040, China
Shen Zhaomeng
Ningbo Medical Center Li Huili Hospital, Ningbo 315040, China
Shen Zhaomeng is working in Ningbo Eye Hospital, Ningbo 315040, China
Li Zhiguo
Ningbo Medical Center Li Huili Hospital, Ningbo 315040, China
·
DOI: 10.3760/cma.j.cn115989-20191117-00498
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摘要

目的系统评价人类肝脂肪酶( LIPC)基因rs10468017多态性与年龄相关性黄斑变性(AMD)易感性的关系。

方法计算机检索英文数据库(PubMed、Embase、EBSCO、Web of Knowledge、Cochrane图书馆)及中文数据库(中国知网、万方数据、维普、中国生物医学文献数据库)自建库起至2019年12月31日关于 LIPC基因rs10468017多态性位点与AMD研究的文献。采用Stata 12.0软件计算等位基因模型(T和C)、杂合子模型(TC和CC)及纯合子模型(TT和CC)3种遗传模型下该多点性位点和AMD相关性的比值比( OR值)及95%置信区间( CI),并进一步按AMD类型和种族进行亚组分析,分别计算 OR值及95% CI,进行Meta分析。

结果本研究共纳入21篇文献,包括AMD患者25 649例和正常对照人群26 294例。Meta分析结果显示,rs10468017多态性的T等位基因与AMD发生风险显著相关(T vs. C: OR=0.83,95% CI:0.80~0.87;TC vs. CC: OR=0.82,95% CI:0.75~0.90;TT vs. CC: OR=0.65,95% CI:0.56~0.76)。亚组分析结果显示,rs10468017多态性与早期AMD( OR=0.87,95% CI:0.78~0.96)、晚期AMD( OR=0.83,95% CI:0.77~0.88)、地图样萎缩( OR=0.79,95% CI:0.72~0.87)及脉络膜新生血管( OR=0.83,95% CI:0.78~0.89)均相关。进一步对种族进行分层分析显示,高加索人群中T等位基因与AMD相关(早期AMD: OR=0.77,95% CI:0.67~0.89;晚期AMD: OR=0.80,95% CI:0.75~0.87),亚洲人群中T等位基因与AMD无显著相关性(早期AMD: OR=0.98,95% CI:0.85~1.13;晚期AMD: OR=0.93,95% CI:0.81~1.06)。

结论rs10468017多态性的T等位基因与AMD显著相关,可降低AMD的发生风险,虽然这种相关性存在于AMD的各个表型中,但是存在一定的种族差异。

年龄相关性黄斑变性;人类肝脂肪酶基因;单核苷酸多态性;Meta分析
ABSTRACT

ObjectiveTo systematically evaluate the association between the hepatic lipase ( LIPC) gene rs10468017 polymorphism and susceptibility to age-related macular degeneration (AMD).

MethodsA systematic search was performed in both English databases (PubMed, Embase, EBSCO, Web of Knowledge and Cochrane library) and Chinese databases (CNKI, WanFang, VIP and CBM) from database establishment to December 31, 2019.Literature about LIPC rs10468017 polymorphism and AMD was searched.Odds ratios ( OR) and 95% confidence intervals ( CI) of allele mode (T and C), heterozygous model (TC and CC) and homozygous model (TT and CC) as well as the correlation between types of AMD and races were calculated using Stata 12.0 software.

ResultsTwenty-one studies were included in the Meta-analysis.There were 25 649 AMD patients and 26 294 normal controls.There was a significant correlation between LIPC rs10468017 polymorphism and risk of AMD in different genetic models (T vs. C: OR=0.83, 95% CI: 0.80-0.87; TC vs. CC: OR=0.82, 95% CI: 0.75-0.90; TT vs. CC: OR=0.65, 95% CI: 0.56-0.76). The subgroup analysis showed that the LIPC rs10468017 polymorphism was significantly associated with the risk of early AMD ( OR=0.87, 95% CI: 0.78-0.96), advanced AMD ( OR=0.83, 95% CI: 0.77-0.88), geographic atrophy ( OR=0.79, 95% CI: 0.72-0.87) and choroidal neovascularization ( OR=0.83, 95% CI: 0.78-0.89). Stratified analysis by ethnicity showed that there was a significant association between T allele and the decreased risk of AMD in the Caucasian population (early AMD: OR=0.77, 95% CI: 0.67-0.89; advanced AMD: OR=0.80, 95% CI: 0.75-0.87), but not in the Asian population (early AMD: OR=0.98, 95% CI: 0.85-1.13; advanced AMD: OR=0.93, 95% CI: 0.81-1.06).

ConclusionsThere is a significant association between T allele of LIPC rs10468017 polymorphism and the reduced risk of AMD, which exists in different subtypes of AMD with certain racial differences.

Age-related macular degeneration;Hepatic lipase gene;Single nucleotide polymorphism;Meta-analysis
Gu Hong, Email: mocdef.6ab214891_gnohug
引用本文

顾虹,徐张幸,沈肇萌,等. LIPC基因rs10468017多态性与年龄相关性黄斑变性易感性关系的Meta分析 [J]. 中华实验眼科杂志,2021,39(08):729-736.

DOI:10.3760/cma.j.cn115989-20191117-00498

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年龄相关性黄斑变性(age-related macular degeneration,AMD)是一种累及视网膜外层、视网膜色素上皮层和脉络膜并造成中心视力进行性损害的严重眼病 [ 1 ]。AMD的患病率随年龄增长而升高,是造成西方国家老年人群不可逆盲的主要原因之一 [ 2 ]。AMD的发病机制尚不清楚。目前的观点认为,AMD是环境和遗传等多因素共同作用所导致的复杂性疾病 [ 3 , 4 ]。家系研究及流行病学调查研究表明,AMD的遗传率可达23% [ 5 , 6 ]。2005年以来,先后在不同人群中得到重复验证的AMD易感基因包括 CFHLOC387715/ HTRA1以及 C2/ BF基因等 [ 7 ]。近年来,随着全基因组关联研究(genome-wide association study,GWAS)等分子遗传学和分子生物学方法的发展和应用,又发现了一些发生频率较低的单核苷酸多态性位点与AMD的发病有关 [ 8 ],如人类肝脂肪酶(hepatic lipase, LIPC)基因等 [ 9 , 10 ]LIPC基因位于染色体15q22,编码肝脏甘油三酯脂酶,参与磷脂、甘油一酯、甘油、甘油三酯及乙酰辅酶A的水解,也是参与高密度脂蛋白代谢的关键酶。Neale等 [ 9 ]通过一项大样本的GWAS研究首先发现了 LIPC基因与晚期AMD的发生相关。此后,又有多项研究证明了这一结论,其中位于 LIPC基因上游514个碱基的rs10468017多态性位点(C→T)是该基因研究的焦点。但是既往研究结果并不一致,有些研究认为T等位基因是AMD的保护因素 [ 11 , 12 , 13 ],而另一些研究结果并不支持这一结论 [ 14 , 15 , 16 , 17 ]。本研究拟采用Meta分析评价 LIPC基因rs10468017多态性与AMD的相关性,以助于更好地理解 LIPC基因在AMD中的作用。
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顾虹,Email: mocdef.6ab214891_gnohug
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所有作者均声明不存在利益冲突
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宁波市自然科学基金项目 (2018A610364)
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