Putative linkage signals identified for breast cancer in African American families.

ABSTRACT:

Background

Genome-wide association studies have identified polymorphisms associated with breast cancer subtypes and across multiple population subgroups; however, few studies to date have applied linkage analysis to other population groups.

Methods

We performed the first genome-wide breast cancer linkage analysis in 106 African American families (comprising 179 affected and 79 unaffected members) not known to be segregating BRCA mutations to search for novel breast cancer loci. We performed regression-based model-free multipoint linkage analyses of the sibling pairs using SIBPAL, and two-level Haseman-Elston linkage analyses of affected relative pairs using RELPAL.

Results

We identified -log10 P values that exceed 4 on chromosomes 3q and 12q, as well as a region near

SUBMITTER: Ochs-Balcom HM 

PROVIDER: S-EPMC4323921 | biostudies-literature | 2015 Feb

REPOSITORIES: biostudies-literature