The role of cytochromes p450 and aldo-keto reductases in prognosis of breast carcinoma patients.

Metabolism of anticancer drugs affects their antitumor effects. This study has investigated the associations of gene expression of enzymes metabolizing anticancer drugs with therapy response and survival of breast carcinoma patients. Gene expression of 13 aldo-keto reductases (AKRs), carbonyl reductase 1, and 10 cytochromes P450 (CYPs) was assessed using quantitative real-time polymerase chain reaction in tumors and paired adjacent nonneoplastic tissues from 68 posttreatment breast carcinoma patients.

Significance of resection margin as a risk factor for local control of early stage breast cancer.

Introduction: Breast conserving surgery combined with sentinel node biopsy represents currently the gold standard of treatment for early breast cancer. Although breast conserving surgery has been a widely accepted method for many years, there remain some highly controversial unresolved issues. The present analysis focused on the resection margin as one of the key factors for local control of the disease.