Three single nucleotide polymorphisms of the vascular endothelial growth factor (VEGF) gene and glioma risk in a Chinese population

Objective: To investigate the association between three single nucleotide polymorphisms (SNPs) of the vascular endothelial growth factor (VEGF) gene and the risk of glioma in a Han Chinese population. Methods: This hospital-based case-control study used polymerase chain reaction-restriction fragment length polymorphism analysis to detect three SNPs (-634G/C, +936C/T and +1612G/A) of the VEGF gene in patients with glioma compared with healthy control subjects. Results: The study investigated 880 patients with gliomas and 880 age-and sex-matched healthy control subjects. Patients with gliomas had a significantly higher frequency of the -634CC genotype (odds ratio [OR] 1.35, 95% confidence interval [CI] 1.05, 1.75) and the +936TT (OR 1.73, 95% CI 1.20, 2.48) genotype compared with the control subjects. Patients with glioblastomas had a significantly higher frequency of the -634CC and +936 TT genotypes. Patients with grade IV gliomas had a significantly higher frequency of the -634CC and +936TT genotypes. The +1612G/A polymorphisms were not associated with glioma risk. Conclusion: The VEGF -634CC and +936TT genotypes were associated with a higher risk of glioma in a Han Chinese population.