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Vascular endothelial growth factor (VEGF) is a potent angiogenic mediator. The present study investigated the relationship between genetic polymorphisms of VEGF and susceptibility to lung cancer in a Han ethnic group of North China. The genotypes in the -2578C and 936C loci of VEGF gene were determined using PCR-RFLP method in 150 patients with lung cancers and 150 healthy individuals. Software PHASE 1.0 was used to analyze the experimental data. The non-conditional logistic regression model was used to analyze the statistical association of genotypes and susceptibility in the two groups adjusted by multiple factors. VEGF polymorphisms were found to be a critical risk for the genetic susceptibility to lung cancers in the ethnic Han group of North China. SNP polymorphisms at the -2578C and 936C loci of the VEGF gene were detected by the RFLP-PCR method. High rates of a single-base C-to-A alteration at the -2578 locus and high rates of a single-base C-to-T alteration at the 936 locus of both alleles were correlated with the occurrence of lung cancer. The SNP markers at the -2578C and 936C loci of the VEGF gene may serve as biological markers of lung cancer.

Correlation of polymorphisms of the vascular endothelial growth factor gene and the risk of lung cancer in an ethnic Han group of North China