title: Single nucleotide polymorphism D1853N of the ATM gene may alter the risk for breast cancer.
abstract: OBJECTIVE
  Various ATM (ataxia telangiectasia-mutated) mutations and polymorphisms have been reported to be associated with an increased breast cancer risk. Recent studies have produced contradictory results regarding the association between ATM genetic variants and breast cancer risk.
  
  
  METHODS
  The common ATM polymorphism 5557G>A (p.D1853N) (rs1801516), previously suggested to be associated with bilateral breast cancer, was analyzed using real-time PCR in 514 unselected patients with breast cancer and 511 age-matched healthy control individuals. DNA was obtained from peripheral blood draw.
  
  
  RESULTS
  The ATM genotype was weakly associated with the risk for breast cancer (P = 0.04 for the overall test). The odds ratio for women with a heterozygous genotype was 0.70 (95% CI, 0.52-0.94) and for the homozygous variant 0.63 (95% CI, 0.27-1.49). Disease-free survival and overall survival showed no significant association with specific genotypes.
  
  
  CONCLUSIONS
  The results of this study might suggest a minor association between polymorphism 5557G>A and a reduced risk of breast cancer.
authors.affiliation: University Breast Center for Franconia, Erlangen University Hospital, Universitaetsstrasse 21-23, 91054, Erlangen, Bavaria, Germany. michael.schrauder@uk-erlangen.de
authors.forename: M
authors.initials: M
authors.lastname: Schrauder
authors.forename: S
authors.initials: S
authors.lastname: Frank
authors.forename: P L
authors.initials: PL
authors.lastname: Strissel
authors.forename: M P
authors.initials: MP
authors.lastname: Lux
authors.forename: M R
authors.initials: MR
authors.lastname: Bani
authors.forename: C
authors.initials: C
authors.lastname: Rauh
authors.forename: C C
authors.initials: CC
authors.lastname: Sieber
authors.forename: K
authors.initials: K
authors.lastname: Heusinger
authors.forename: A
authors.initials: A
authors.lastname: Hartmann
authors.forename: R
authors.initials: R
authors.lastname: Schulz-Wendtland
authors.forename: R
authors.initials: R
authors.lastname: Strick
authors.forename: M W
authors.initials: MW
authors.lastname: Beckmann
authors.forename: Peter A
authors.initials: PA
authors.lastname: Fasching
mesh_terms: D000328:Adult; D000368:Aged; D064007:Ataxia Telangiectasia Mutated Proteins; D001943:Breast Neoplasms / Q000235:genetics* / Q000401:mortality / Q000473:pathology; D016022:Case-Control Studies; D018797:Cell Cycle Proteins / Q000235:genetics*; D004268:DNA-Binding Proteins / Q000235:genetics*; D018572:Disease-Free Survival; D005260:Female; D020022:Genetic Predisposition to Disease; D006801:Humans; D053208:Kaplan-Meier Estimate; D008875:Middle Aged; D020641:Polymorphism, Single Nucleotide; D017346:Protein Serine-Threonine Kinases / Q000235:genetics*; D020133:Reverse Transcriptase Polymerase Chain Reaction; D012307:Risk Factors; D025521:Tumor Suppressor Proteins / Q000235:genetics*
chemical_list: D018797:Cell Cycle Proteins; D004268:DNA-Binding Proteins; D025521:Tumor Suppressor Proteins; C576324:ATM protein, human; D064007:Ataxia Telangiectasia Mutated Proteins; D017346:Protein Serine-Threonine Kinases