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dc.contributor.authorCharalabopoulos, K.en
dc.contributor.authorKotsalos, A.en
dc.contributor.authorBatistatou, A.en
dc.contributor.authorCharalabopoulos, A.en
dc.contributor.authorVezyraki, P.en
dc.contributor.authorPeschos, D.en
dc.contributor.authorKalfakakou, V.en
dc.contributor.authorEvangelou, A.en
dc.rightsDefault Licence-
dc.subjectbreast canceren
dc.subjectcarcinoembryonic antigen (cea)en
dc.subjecttoenail seleniumen
dc.titleSelenium in serum and neoplastic tissue in breast cancer: correlation with CEAen
heal.type.enJournal articleen
heal.type.elΆρθρο Περιοδικούel
heal.identifier.primaryDOI 10.1038/sj.bjc.6603292-
heal.identifier.secondary<Go to ISI>://000241079400003-
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών Υγείας. Τμήμα Ιατρικήςel
heal.abstractTrace element selenium (Se) is regarded to be a breast cancer preventive factor involved in multiple protective pathways. In all, 80 women with breast cancer who underwent a radical mastectomy were enrolled in the study. Serum Se and carcinoembryonic antigen levels were measured using a fluorometric and IRMA assay, respectively. Se tissue concentration was determined by a tissue extracting fluorometric assay. For statistical analysis purposes t-test was used and P-values < 0.001 were regarded as statistically significant. Serum Se was 42.5 +/- 77.5 mu g l(-1) in breast cancer patients and 67.6 +/- 5.36 mg l(-1) in the age-matched control group of healthy individuals. Serum carcinoembryonic antigen in patients was 10 +/- 1.7 U ml(-1) (normal < 2.5 U ml(-1) in nonsmokers/< 3.5 U ml(-1) in smokers). A statistically significant difference was found for both serum Se and CEA between two groups studied (P < 0.001). Neoplastic tissue Se concentration was 2660 +/- 210 mg g(-1) tissue; its concentration in the adjacent non-neoplastic tissue was 680 +/- 110 mg g(-1) tissue (P < 0.001). An inverse relationship between Se and CEA serum levels was found in the two groups studied (r = -0.794). There was no correlation between serum/tissue Se concentration and stage of the disease. The decrease in serum Se concentration as well as its increased concentration in the neoplastic breast tissue is of great significance. These alterations may reflect part of the defence mechanisms against the carcinogenetic process.en
heal.journalNameBr J Canceren
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