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Increased mammographic density is a strong and independent attribute factor for breast carcinoma. The density is associated with epithelial cell proliferation and stromal fibrosis development that is regulated by Transforming Growth Factor-Beta 1 (TGF-β1). This study was aimed to fine map the TGF-β1 gene cluster in predicting the role of predisposing haplotypes in breast density development using tagging SNPs.

Genotyping was conducted for three tagging TGF-β1 SNPs assigned as rs1800469, rs1800470 and rs4803455 in a total of 50 consented female participants as case group which involved BI-RADS 3 and 4, while the control group (n = 50) consisted of BI-RADS 1 and 2 who underwent a mammography check-up at The Department of Radiology, Hospital Sultanah Nur Zahirah of Kuala Terengganu. A series of bioinformatics analysis including individual SNP …