背景与目的：研究碱基切除修复基因XRCC1基因G28152A单核苷酸多态与肺癌风险的关系。
BACKGROUND&AIM: To evaluate the correlation between the single nucleotide polymorphism of XRCC1gene G28152A and the risk of lung cancer.
已知细胞中DNA氧化性损伤主要通过碱基切除修复(BER)来完成，许多修复酶参与了这一修复过程。
The DNA oxidative damage is believed that it is repaired mainly by the base excision repair (BER) mechanism with many repairing enzymes.
植物可以通过多种途径来修复紫外诱导的DNA损伤，主要包括光修复、碱基切除修复、核苷酸切除修复和重组修复等。
Plant could repair DNA damage induced by UV-B through many methods, mainly included light-repair, base excision repair, nucleotide excision repair and recombination repair etc.
目前已鉴定的这一基因家族的多数成员均参与几种重要的DNA修复途径，包括碱基切除修复、同源重组修复和非同源末端重接。
Most members of the XRCC genes family participated in several DNA repair pathways, including base excision repair, homologous recombination repair and non-homologous end joining.
目前已鉴定的这一基因家族的多数成员均参与几种重要的DNA修复途径，包括碱基切除修复、同源重组修复和非同源末端重接。
Most members of the XRCC genes family participated in several DNA repair pathways, including base excision repair, homologous recombination repair and non-homologous end joining.
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