Lazzeri Stefano, Orlandi Paola, Figus Michele, Fioravanti Anna, Cascio Elisa, Di Desidero Teresa, Agosta Elisa, Canu Bastianina, Sartini Maria Sole, Danesi Romano, Nardi Marco, Bocci Guido
Ophthalmology Unit, University Hospital, Via Paradisa, 2-56124 Pisa, Italy.
ScientificWorldJournal. 2012;2012:420190. doi: 10.1100/2012/420190. Epub 2012 Aug 1.
In this prospective, case-control genetic study, 120 consecutive neovascular age-related macular degeneration (AMD) cases and 78 controls were enrolled. Two SNPs (rs2071559 and rs1870377) of VEGF-A receptor-2 (VEGFR-2) gene were analyzed with the technique of Real-Time PCR to investigate a genetic link between AMD and VEGFR-2 gene polymorphisms in Italian patients. The frequency of the VEGFR-2 genotype rs2071559 AA was significantly lower (18.33%) in patients with AMD than in the control subjects (34.62%; P = 0.0095, chi-square test; P(corr) = 0.038; OR = 0.42, 95% CI 0.22 to 0.82). In conclusion, although with the limitations of a small sample size and the few SNPs studied, this study demonstrates a lower frequency of VEGFR-2 rs2071559 AA genotype in an AMD patient population, suggesting future studies on the role VEGFR-2 SNPs.
在这项前瞻性病例对照基因研究中,连续纳入了120例新生血管性年龄相关性黄斑变性(AMD)患者和78名对照者。采用实时聚合酶链反应技术分析血管内皮生长因子A受体2(VEGFR-2)基因的两个单核苷酸多态性(SNP,rs2071559和rs1870377),以研究意大利患者中AMD与VEGFR-2基因多态性之间的遗传联系。AMD患者中VEGFR-2基因型rs2071559 AA的频率(18.33%)显著低于对照者(34.62%;卡方检验,P = 0.0095;校正P值 = 0.038;比值比 = 0.42,95%置信区间为0.22至0.82)。总之,尽管本研究存在样本量小和研究的SNP数量少的局限性,但该研究表明AMD患者群体中VEGFR-2 rs2071559 AA基因型的频率较低,提示未来应对VEGFR-2基因SNP的作用开展研究。