實(shí)時熒光定量PCR技術(shù)在年齡相關(guān)性白內(nèi)障患者GSTM1、GSTT1基因拷貝數(shù)變異檢測中的應(yīng)用
[Abstract]:Objective to detect the copy number variation of glutathione-S-transferase (glutathione S transferase,GST) M _ 1 T _ 1 gene in patients with age-related cataract (age-related cataract,ARC) by real-time fluorescence quantitative PCR. Methods Real-time quantitative PCR was used to detect the GSTM1,GSTT1 gene repeat or deletion isocopy number variation in 279 patients (558 eyes) of ARC group and 145 cases (290 eyes) of control group. The accuracy of this method in the detection of copy number was verified. Results under the same conditions, the three PCR amplification curves of GSTM1,GSTT1 gene and RNase P gene basically coincided with each other, and the amplification efficiency was basically the same, and the Ct value was basically the same. The ARC individuals with complete GSTT1 gene deletion (0 copies) were compared with the control group (especially the posterior subcapsular ARC). The difference was statistically significant (P0.05); the risk of ARC and cortical ARC was increased in individuals with at least one copy deletion of GSTT1 genotype (OR = 2.16, 4.81, respectively, P 0.01), while in individuals with two copy deletion GSTT1 genotypes, the risk decreased. ARC individuals with low copy number variation of GSTM1 gene were compared with control group. The difference was not statistically significant (P0.05). Conclusion the loss of copy number of GSTT1 gene may be a risk factor for the occurrence of ARC, especially cortical and posterior subcapsular cataract. Real-time fluorescence quantitative PCR is accurate and efficient. It is suitable for the detection of copy number variation of GSTM1,GSTT1 gene and the epidemiological investigation of ophthalmopathy including ARC.
【作者單位】: 南通大學(xué)附屬醫(yī)院眼科;
【基金】:國家自然科學(xué)基金資助(編號:81070718、81300744)~~
【分類號】:R776.1
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