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Oxidative damage markers as possible discriminatory biomarkers in breast carcinoma

, : Oxidative damage markers as possible discriminatory biomarkers in breast carcinoma. Translational Research 160(6): 411-418

The study was designed to evaluate the markers of oxidative damage and to establish their diagnostic utility in breast carcinoma patients. Levels of 8-hydroxy-2-deoxyguanosine (8-OH-dG), protein carbonyl (PC), and malondialdehyde (MDA) along with total antioxidant status (TAS) were measured in breast carcinoma patients and controls. Receiver operating characteristic (ROC) analysis was done to study the diagnostic potential of the oxidative damage markers. Significant increases in oxidative damage markers were observed in breast carcinoma patients compared with the normal controls, which were accompanied by significant decrease in TAS. The logistic regression analysis revealed higher levels of oxidative stress marker and reduced level of TAS were significantly associated with breast cancer. ROC curves analysis demonstrates that 8-OHdG and PC are better indicators for distinguishing cancer patients from controls, followed by MDA and TAS. Our results indicate increased oxidative damage is associated with malignancy in breast cancer patients. High accuracy of oxidative stress markers in indicating cancer presence can be used as discriminatory makers for efficient diagnosis.


PMID: 22885175

DOI: 10.1016/j.trsl.2012.07.005

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