title: CYP1A1 Ile462Val polymorphism as a risk factor in cervical cancer development in the Polish population.
abstract: OBJECTIVE
  There are inconsistent data of the cytochrome P450 1A1 (CYP1A1) Ile462Val (rs1048943) single nuclear polymorphism (SNP) as a genetic susceptibility factor for cervical cancer in various populations. Moreover, little is known about the interaction of this SNP with other risk factors, including contraceptive use, postmenopausal status, parity, and tobacco smoking.
  
  
  METHODS
  Polymerase chain reaction-restriction fragment length polymorphism was used to study the prevalence of the CYP1A1 Ile462Val SNP in women with cervical cancer (n = 456) and controls (n = 495).
  
  
  RESULTS
  Logistic regression analysis adjusting for age, parity, oral contraceptive use, tobacco smoking, and menopausal status demonstrated that that the CYP1A1 Ile/Val polymorphism was not associated with an increased risk of cervical cancer in all patients. The adjusted odds ratio (OR) for patients with the Ile/Val genotype vs. Ile/Ile genotype was 1.539 (95 % confidence interval [CI] 0.932-2.541, p = 0.091). However, an increase in cervical cancer risk was seen among patients with a positive history of tobacco smoking and parity. The adjusted OR for positive history of tobacco smoking with the Ile/Val vs. Ile/Ile genotypes was 2.978 (95 % CI 1.382-6.418, p = 0.0052). The adjusted OR for parity with the Ile/Val vs. Ile/Ile genotype was 1.739 (95 % CI 1.006-3.009, p = 0.0472).
  
  
  CONCLUSIONS
  Our genetic study suggests that the CYP1A1 Ile462Val SNP may be a risk factor for cervical cancer among patients with a positive history of tobacco smoking and parity.
authors.affiliation: Department of Radiotherapy and Gynecological Oncology, Greater Poland Cancer Center, Poznan, Poland.
authors.forename: Andrzej
authors.initials: A
authors.lastname: Roszak
authors.forename: Margarita
authors.initials: M
authors.lastname: Lianeri
authors.forename: Anna
authors.initials: A
authors.lastname: Sowińska
authors.forename: Pawel P
authors.initials: PP
authors.lastname: Jagodziński
mesh_terms: D000328:Adult; D000368:Aged; D019363:Cytochrome P-450 CYP1A1 / Q000235:genetics*; D005260:Female; D020022:Genetic Predisposition to Disease; D006801:Humans; D008297:Male; D008875:Middle Aged; D011110:Polymorphism, Genetic / Q000235:genetics*; D002583:Uterine Cervical Neoplasms / Q000235:genetics*
chemical_list: C569463:CYP1A1 protein, human; D019363:Cytochrome P-450 CYP1A1