Background: Epidemiological studies have demonstrated that obesity and low oestrogen receptor level adversely affect survival from breast cancer. Few studies have examined the joint effects of these variables.
Methods: A cohort study was conducted in which 1169 breast cancer patients from the Northern Alberta Breast Cancer Registry were followed for an average of 4.4 years. A number of variables related to breast cancer incidence and prognosis were studied. Body mass index (BMI) was used as a proxy measure of obesity.
Results: A Cox regression analysis resulted in a final model with terms for size of tumour, number of positive axillary nodes, oestrogen receptor level, BMI, and age at diagnosis, plus an interaction term for node status and BMI. Having relatively less oestrogen receptor increased the hazard ratio by 1.8 (95% CI: 1.4-2.3); for woman with no positive nodes, being in the highest quartile of BMI increased the hazard ratio by 2.5 (95% CI: 1.2-5.2) compared to the lowest quartile.
Conclusions: BMI and oestrogen receptor level independently influence survival from breast cancer, but BMI affects survival only in patients with no positive axillary nodes.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1093/ije/26.3.484 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A Integrated Molecule Based on Ferritin Nanoplatforms for Inducing Tumor Ferroptosis with the Synergistic Photo/Chemodynamic Treatment.
ACS Appl Mater Interfaces
January 2025
Department of Laboratory Medicine, Dongguan Institute of Clinical Cancer Research, The Tenth Affiliated Hospital (Dongguan People's Hospital), Southern Medical University, Dongguan, Guangdong 523058, China.
Ferroptosis combined with photodynamic therapy (PDT) has emerged as a powerful approach to induce cancer cell death by producing and accumulating lethal reactive oxygen species (ROS) in the tumor microenvironment (TME). Despite its efficacy and safety, challenges persist in delivering multiple drugs to the tumor site for enhanced antitumor efficacy and improved tissue targeting. Hence, we designed a method of inducing ferroptosis through laser-mediated and human homologation-specific efficient activation, which is also a ferroptosis therapy with higher safety through ROS-mediated.
View Article and Find Full Text PDFEvaluation of the Impact of Breast Radiation Therapy on Quality of Life Requires Appropriate Instruments at Relevant Timepoints.
Clin Breast Cancer
December 2024
Department of Oncology, Princess Margaret Hospital, Kowloon West Cluster, Hospital Authority, Hong Kong S.A.R., China. Electronic address:
Unveiling the role of MDH1 in breast cancer drug resistance through single-cell sequencing and schottenol intervention.
Cell Signal
January 2025
Department of Breast and Thyroid Surgery, The Qinghai Provincial People's Hospital, Xining 810007, China. Electronic address:
This study utilizes single-cell RNA sequencing data to reveal the transcriptomic characteristics of breast cancer and normal epithelial cells. Nine significant cell populations were identified through stringent quality control and batch effect correction. Further classification of breast cancer epithelial cells based on the PAM50 method and clinical subtypes highlighted significant heterogeneity between triple-negative breast cancer (TNBC) and non-triple-negative breast cancer (NTNBC).
View Article and Find Full Text PDFProtein molecular structures of USP53, NPY2R, and DCTN1-AS1 and impact on tumors: Analysis of prognostic biomarkers for diffuse large B-cell lymphoma.
Int J Biol Macromol
January 2025
Department of Radiotherapy, Harbin Medical University Cancer Hospital, Harbin Medical University, Harbin, Heilongjiang 150081, China. Electronic address:
In the past few years, three protein molecules-USP53, NPY2R, and DCTN1-AS1-have garnered significant attention in scientific research due to their potential implications in tumor development. Mass spectrometry and proteomics techniques were used to analyze the three-dimensional structure of these protein molecules and predict their active sites and functional domains. The effects of USP53, NPY2R and DCTN1-AS1 on biological behavior of tumor cells were studied by constructing gene knockout and overexpression cell models.
View Article and Find Full Text PDFDelays in chemotherapy and radiotherapy of breast cancer during COVID-19 pandemic.
J Infect Public Health
January 2025
Preventive Medicine and Public Health Research Center, Psychosocial Health Research Institute, Department of Community and Family Medicine, School of Medicine, Iran University of Medical Sciences, Shahid Hemmat Highway, P.O Box: 14665-354, Tehran 1449614535, Iran.
Background: During the COVID-19 pandemic, hospitals were overwhelmed with infected patients, leading to a disruption in the delivery of services. Patients with cancer, including breast cancer, rely on timely treatment, as delays can reduce survival rates. In this study, we investigated delays in treatment and the factors contributing to delays in chemotherapy and radiotherapy for these patients.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!