title: Association between single nucleotide polymorphisms in the XRCC1 gene and susceptibility to prostate cancer in Chinese men.
abstract: BACKGROUND
  Prostate cancer (Pca) is one of the most common complex and polygenic diseases in men. The X-ray repair complementing group 1 gene (XRCC1) is an important candidate in the pathogenesis of Pca. The purpose of this study was to evaluate the association between single nucleotide polymorphisms in the XRCC1 gene and susceptibility to Pca.
  
  
  METHODS
  XRCC1 gene polymorphisms and associations with susceptibility to Pca were investigated in 193 prostate patients and 188 cancer-free Chinese men.
  
  
  RESULTS
  The c.910A>G variant in the exon9 of XRCC1 gene could be detected by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) and DNA sequencing methods. Significantly increased susceptibility to prostate cancer was noted in the homozygote comparison (GG versus AA: OR=2.95, 95% CI 1.46-5.42, χ2=12.36, P=0.001), heterozygote comparison (AG versus AA: OR=1.76, 95% CI 1.12-2.51, χ2=4.04, P=0.045), dominant model (GG/AG versus AA: OR=1.93, 95% CI 1.19-2.97, χ2=9.12, P=0.003), recessive model (GG versus AG+AA: OR=2.17, 95% CI 1.33-4.06, χ2=8.86, P=0.003) and with allele contrast (G versus A: OR=1.89, 95% CI 1.56-2.42, χ2=14.67, P<0.000).
  
  
  CONCLUSIONS
  These findings suggest that the c.910A>G polymorphism of the XRCC1 gene is associated with susceptibility to Pca in Chinese men, the G-allele conferring higher risk.
authors.affiliation: Department of Urology, The First Affiliated Hospital of Soochow University, Suzhou, China.
authors.forename: Yun-Feng
authors.initials: YF
authors.lastname: Zhou
authors.forename: Guang-Bo
authors.initials: GB
authors.lastname: Zhang
authors.forename: Ping
authors.initials: P
authors.lastname: Qu
authors.forename: Jian
authors.initials: J
authors.lastname: Zhou
authors.forename: Hui-Xin
authors.initials: HX
authors.lastname: Pan
authors.forename: Jian-Quan
authors.initials: JQ
authors.lastname: Hou
mesh_terms: D000368:Aged; D044466:Asian People / Q000235:genetics*; D016022:Case-Control Studies; D004268:DNA-Binding Proteins / Q000235:genetics*; D005500:Follow-Up Studies; D020022:Genetic Predisposition to Disease; D005838:Genotype; D006801:Humans; D008297:Male; D060787:Neoplasm Grading; D016133:Polymerase Chain Reaction; D012150:Polymorphism, Restriction Fragment Length; D020641:Polymorphism, Single Nucleotide / Q000235:genetics*; D011379:Prognosis; D011471:Prostatic Neoplasms / Q000209:etiology* / Q000473:pathology; D012307:Risk Factors; D000076105:X-ray Repair Cross Complementing Protein 1
chemical_list: D004268:DNA-Binding Proteins; D000076105:X-ray Repair Cross Complementing Protein 1; C000619371:XRCC1 protein, human