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Plos One : Evaluating Genome-wide Association Study-identified Breast Cancer Risk Variants in African-american Women, Volume 8

By Peterlongo, Paolo

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Book Id: WPLBN0003948012
Format Type: PDF eBook :
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Reproduction Date: 2015

Title: Plos One : Evaluating Genome-wide Association Study-identified Breast Cancer Risk Variants in African-american Women, Volume 8  
Author: Peterlongo, Paolo
Volume: Volume 8
Language: English
Subject: Journals, Science, Medical Science
Collections: Periodicals: Journal and Magazine Collection
Historic
Publication Date:
Publisher: Plos

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Peterlongo, P. (n.d.). Plos One : Evaluating Genome-wide Association Study-identified Breast Cancer Risk Variants in African-american Women, Volume 8. Retrieved from http://netlibrary.net/


Description
Description : Genome-wide association studies (GWAS), conducted mostly in European or Asian descendants, have identified approximately 67 genetic susceptibility loci for breast cancer. Given the large differences in genetic architecture between the African-ancestry genome and genomes of Asians and Europeans, it is important to investigate these loci in Africanancestry populations. We evaluated index SNPs in all 67 breast cancer susceptibility loci identified to date in our study including up to 3,300 African-American women (1,231 cases and 2,069 controls), recruited in the Southern Community Cohort Study (SCCS) and the Nashville Breast Health Study (NBHS). Seven SNPs were statistically significant (P#0.05) with the risk of overall breast cancer in the same direction as previously reported : rs10069690 (5p15/TERT), rs999737 (14q24/ RAD51L1), rs13387042 (2q35/TNP1), rs1219648 (10q26/FGFR2), rs8170 (19p13/BABAM1), rs17817449 (16q12/FTO), and rs13329835 (16q23/DYL2). A marginally significant association (P,0.10) was found for three additional SNPs : rs1045485 (2q33/CASP8), rs4849887 (2q14/INHBB), and rs4808801 (19p13/ELL). Three additional SNPs, including rs1011970 (9p21/ CDKN2A/2B), rs941764 (14q32/CCDC88C), and rs17529111 (6q14/FAM46A), showed a significant association in analyses conducted by breast cancer subtype. The risk of breast cancer was elevated with an increasing number of risk variants, as measured by quintile of the genetic risk score, from 1.00 (reference), to 1.75 (1.30–2.37), 1.56 (1.15–2.11), 2.02 (1.50–2.74) and 2.63 (1.96–3.52), respectively, (P = 7.8610–10). Results from this study highlight the need for large genetic studies in AAs to identify risk variants impacting this population.

 

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