title: Estrogen receptor-beta gene polymorphism in women with breast cancer at the Imam Khomeini Hospital Complex, Iran.
abstract: ER-alpha and ER-beta genes have been proven to play a significant role in breast cancer. Epidemiologic studies have revealed that age-incidence patterns of breast cancer in Middle East differ from those in the Western countries. Two selected coding regions in the ER-beta gene (exons 3 and 7) were scanned in Iranian women with breast cancer (150) and in healthy individuals (147). PCR single-strand conformation polymorphism was performed. A site of silent single nucleotide polymorphism was found only on exon 7. The SNP was found only in breast cancer patients (5.7%) (chi2 = 17.122, P = 0.01). Codon 392 (C1176G) of allele 1 was found to have direct association with the occurrence of lymph node metastasis. Our data suggest that ER-beta polymorphism in exon 7 codon 392 (C1176G) is correlated with various aspects of breast cancer and lymph node metastasis in our group of patients.
authors.affiliation: Department of Medical Laboratory Sciences, Faculty of Allied Medicine, Tehran University of Medical Sciences, Iran. sakineh4612004@yahoo.com
authors.forename: Sakineh
authors.initials: S
authors.lastname: Abbasi
mesh_terms: D000328:Adult; D001943:Breast Neoplasms / Q000235:genetics* / Q000473:pathology; D016022:Case-Control Studies; D047629:Estrogen Receptor beta / Q000235:genetics*; D005260:Female; D005838:Genotype; D006801:Humans; D007492:Iran; D008207:Lymphatic Metastasis; D008875:Middle Aged; D020641:Polymorphism, Single Nucleotide; D012306:Risk
chemical_list: D047629:Estrogen Receptor beta