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artículo
Publicado 2020
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We sought to review literature on the prevalence of symptoms of depression in women with a diagnosis of breast cancer (BC) and in the Peruvian population determine the prevalence of symptoms of depression and to describe the association with sociodemographic characteristics. Descriptive cross-sectional analytical study of 254 patients from the National Cancer Institute of Peru (Instituto Nacional de Enfermedades Neoplasicas) with a diagnosis of clinical stage I or II BC. The patients included women aged between 26 and 67 years old. Symptoms of depression were monitored by the Beck Depression Inventory-II. Moreover, clinical features and patient sociodemographic characteristics were analyzed and their association with depression was assessed by logistic regression. The average age of the patients was 47.8 +/- 9.2 years; 5.4% of the patients were postmenopausal at the time of the questionn...
2
artículo
Publicado 2022
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Objective. The aim of this study was to determine the relationship between anemia and depressive symptoms in patients with early stage breast cancer at the National Institute of Neoplastic Diseases (INEN), Lima, Peru. Methods. An analytical cross-sectional observational study of 60 Peruvian women diagnosed with early stage I and II breast cancer was conducted between June 2019 and March 2020. All participants were assessed by Beck Depression Inventory-II (BDIII) score, had not received prior chemotherapy, and met the inclusion criteria. Each participant provided a blood sample that was used to estimate hemoglobin and red and white blood cell counts. Results. Of the 60 patients who met the inclusion criteria, twenty (33.3%) had depressive symptoms at the time of diagnosis. Mean hemoglobin levels in patients with depressive symptoms (M = 10.9, SD = 2.1) were lower compared to those in pa...
3
artículo
Publicado 2022
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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 ...
4
Publicado 2025
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A substantial portion of the genetic predisposition for breast cancer is explained by multiple common genetic variants of relatively small effect. A subset of these variants, which have been identified mostly in individuals of European (EUR) and Asian ancestries, have been combined to construct a polygenic risk score (PRS) to predict breast cancer risk, but the prediction accuracy of existing PRSs in Hispanic/Latinx individuals (H/L) remain relatively low. We assessed the performance of several existing PRS panels with and without addition of H/L-specific variants among self-reported H/L women. PRS performance was evaluated using multivariable logistic regression and the area under the ROC curve. Both EUR and Asian PRSs performed worse in H/L samples compared with original reports. The best EUR PRS performed better than the best Asian PRS in pooled H/L samples. EUR PRSs had decreased per...
