Browsing by Author "Gálvez-Nino, M"

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    Association between Ancestry-Specific 6q25 Variants and Breast Cancer Subtypes in Peruvian Women
    (American Association for Cancer Research Inc., 2022) Zavala Valentin, A; Casavilca-Zambrano, S; Navarro-Vásquez, J; Castaneda-Altamirano, CA; Valencia, G; Morante, Z; Calderón, M; Abugattas-Saba, JE; Gómez-Moreno, HL; Fuentes-Rivera, HA; Liendo-Picoaga, R; Cotrina-Concha, JM; Monge, C; Neciosup, SP; Scott, H; Hu, D; Sánchez, SE; Williams, A; Núñez-Marrero, A; Godoy, L; Hechmer, A; Olshen, AB; Dutil, J; Ziv, E; Zabalet,a J; Gelaye B; Vásquez, J; Gálvez-Nino, M; Enriquez-Vera, D; Vidaurre, T; Fejerman, L
    Background: Breast cancer incidence in the United States is lower in Hispanic/Latina (H/L) compared with African American/ Black or Non-Hispanic White women. An Indigenous American breast cancer-protective germline variant (rs140068132) has been reported near the estrogen receptor 1 gene. This study tests the association of rs140068132 and other polymorphisms in the 6q25 region with subtype-specific breast cancer risk in H/Ls of high Indigenous American ancestry. Methods: Genotypes were obtained for 5,094 Peruvian women with (1,755) and without (3,337) breast cancer. Associations between genotype and overall and subtype-specific risk for the protective variant were tested using logistic regression models and conditional analyses, including other risk-associated polymorphisms in the region. Results: We replicated the reported association between rs140068132 and breast cancer risk overall [odds ratio (OR), 0.53