Breast Cancer
Conditions
Keywords
breast cancer
Brief summary
RATIONALE: Studying samples of blood from patients with cancer in the laboratory may help doctors learn more about nutrition-related changes that identify biomarkers related to cancer. It may also help doctors predict a woman's risk of developing breast cancer. PURPOSE: This laboratory study is looking at nutrition-related biomarkers in predicting breast cancer risk in women.
Detailed description
OBJECTIVES: * To complete characterization of metabolic serotypes based on the metabolome, and to adapt these profiles for human epidemiological studies. * To determine the extent to which metabolic profiles that are reflective of or independent of long-term caloric intake predict breast cancer risk in nested case-control studies. * To identify critical serum metabolites. OUTLINE: Laboratory studies, including metabolome profiling by high performance liquid chromatography; and small molecule identification by mass spectroscopy, are performed on previously collected blood samples.
Interventions
Sponsors
Study design
Eligibility
Inclusion criteria
DISEASE CHARACTERISTICS: * Meets 1 of the following criteria: * Confirmed breast cancer that was diagnosed at least 2 years after blood sample collection (case) * No prior diagnosis of cancer * Healthy participant (control) * Enrolled in the Nurses' Health Study * Banked blood samples available * Hormone receptor status not specified PATIENT CHARACTERISTICS: * Menopausal status not specified PRIOR CONCURRENT THERAPY: * Not specified
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Generation of metabolome profiles that reflect nutritional status | ongoing |
| Utility of rat metabolome profiles for human epidemiological studies | ongoing |
| Utility of metabolome profiles in predicting relative risk of developing breast cancer | ongoing |
| Identification of critical serum metabolites | ongoing |
Countries
United States