PMID: 26838244Feb 4, 2016Paper

Lack of Association between CYP1A1 M2 and M4 Polymorphisms and Breast Carcinoma in Jordanian Women: a Case-Control Study

Asian Pacific Journal of Cancer Prevention : APJCP
Iman AmraniLaila Abu Tahoun

Abstract

CYP1A1 is a candidate gene for low-penetrance breast cancer susceptibility, as it plays an important role in the metabolism of carcinogens and estrogens. The objective of this study was to assess the association between M2 (A2455G, Ile462Val) and M4 (C2453A, Thr461Asn) polymorphisms in CYP1A1 and breast cancer risk among Jordanian women and in subgroups stratified by menopausal status and smoking history. Blood samples were collected from 112 breast cancer female patients and 115 age-matched controls who underwent breast cancer screening with imaging and showed negative results (BI- RADS I or BI-RADS II). Genotyping was performed using the PCR-RFLP technique. No statistically significant overall association was found between breast cancer risk and CYP1A1 M2 genotypes (p-value = 0.55; OR = 0.77; 95% CI= 0.32 - 1.83) nor with the M4 polymorphism (p-value= 0.95; OR= 0.95; 95% CI= 0.51- 1.88). Analysis of subgroups defined by menopausal status or smoking history also revealed no association with these polymorphisms. Furthermore, the four identified haplotypes (AC; AA; GC and GA) were equally distributed among cases and controls, and haplotype analysis showed a strong linkage disequilibrium of both studied loci in either cases or co...Continue Reading

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Citations

Nov 17, 2020·Frontiers in Pharmacology·Ying Luo, Jun-Yan Liu

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