title: Analysis of CYP17, CYP19 and CYP1A1 Gene Polymorphisms in Iranian Women with Breast Cancer.
abstract: Breast cancer (BC) is the most common cancer and the second cause of mortality in women all around the world. It is caused by several factors including genetic determinants, so that both genetic susceptibility factors and environmental factors are involved in the etiology. Significance of genes functioning in steroid hormone synthesis and metabolism are well established in breast cancer susceptibility. In this study, 134 women with BC and 135 normal controls were analyzed for their genotypes for the polymorphisms, rs743572, rs10046 and rs4646903, resided in CYP17, CYP19 and CYP1A1 genes, respectively. Significant differences in distributions of allele and genotype frequencies were found for the rs10046 polymorphism in CYP19 (p-value=0.01, OR (CI 95%) =1.59 (1.1-2.3), p-value=0.04, OR (CI 95%) =1.7 (1.1-2.5) respectively). For rs743,572 and rs 4646903 polymorphisms, no significant associations were observed. A significant association was observed between the rs10046 polymorphism of the CYP19gene and breast cancer in Iranian patients. Due to inconsistent previous results, more studies in different populations with larger sample sizes are indicated.
authors.affiliation: Infertility and Reproductive Health Research Centre (IRHRC), School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran E-mail: Gitinoghabaei@gmail.com, darvish_mg@sbmu.ac.ir.
authors.forename: Farah
authors.initials: F
authors.lastname: Farzaneh
authors.forename: Giti
authors.initials: G
authors.lastname: Noghabaei
authors.forename: Esmat
authors.initials: E
authors.lastname: Barouti
authors.forename: Farkhondeh
authors.initials: F
authors.lastname: Pouresmaili
authors.forename: Javad
authors.initials: J
authors.lastname: Jamshidi
authors.forename: Atena
authors.initials: A
authors.lastname: Fazeli
authors.forename: Babak
authors.initials: B
authors.lastname: Emamalizadeh
authors.forename: Hossein
authors.initials: H
authors.lastname: Darvish
mesh_terms: D001141:Aromatase / Q000235:genetics*; D014408:Biomarkers, Tumor / Q000235:genetics*; D001943:Breast Neoplasms / Q000235:genetics* / Q000473:pathology; D016022:Case-Control Studies; D019363:Cytochrome P-450 CYP1A1 / Q000235:genetics*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007492:Iran; D008875:Middle Aged; D009367:Neoplasm Staging; D016133:Polymerase Chain Reaction; D012150:Polymorphism, Restriction Fragment Length; D020641:Polymorphism, Single Nucleotide / Q000235:genetics*; D011379:Prognosis; D013254:Steroid 17-alpha-Hydroxylase / Q000235:genetics*
chemical_list: D014408:Biomarkers, Tumor; D001141:Aromatase; C561410:CYP19A1 protein, human; C569463:CYP1A1 protein, human; D019363:Cytochrome P-450 CYP1A1; D013254:Steroid 17-alpha-Hydroxylase