title: Relation between bladder cancer and protein oxidation.
abstract: DNA, protein oxidation and lipid peroxidation possess a major impact in carcinogenesis. Also, inflammatory and oxidative events have remarkable importance in bladder cancer. Thus, in this study total protein, protein carbonyl, nitrotyrosine, thiol residues, non-protein thiols, lipid peroxidation, and also, because of their relations to the above parameters, iron and iron binding levels have been investigated in patients with bladder cancer and in control group. Statistical evaluation of the results demonstrated significantly lower plasma protein levels in the patients with bladder cancer, as compared to the healthy control group. Serum iron levels in patients with invasive bladder cancer were found to be significantly lower when compared with non-invasive group. Protein carbonyl groups were remarkably higher in bladder cancer patients than in healthy controls. Patients with bladder cancer were demonstrated to have significantly lower levels of total thiol groups and protein-bound thiol groups as compared to healthy controls. Protein-bound thiol groups in patients with invasive bladder cancer revealed a more significant decline, than in non-invasive group.
authors.affiliation: Department of Biochemistry, Cerrahpaşa Medical Faculty, University of Istanbul, Istanbul, Turkey. ilkeraydiny@hotmail.com
authors.forename: Ilker A
authors.initials: IA
authors.lastname: Yilmaz
authors.forename: Tülay
authors.initials: T
authors.lastname: Akçay
authors.forename: Ufuk
authors.initials: U
authors.lastname: Cakatay
authors.forename: Ayşegül
authors.initials: A
authors.lastname: Telci
authors.forename: Süleyman
authors.initials: S
authors.lastname: Ataus
authors.forename: Veli
authors.initials: V
authors.lastname: Yalçin
mesh_terms: D000368:Aged; D000704:Analysis of Variance; D014408:Biomarkers, Tumor / Q000097:blood*; D001798:Blood Proteins / Q000378:metabolism; D002295:Carcinoma, Transitional Cell / Q000175:diagnosis* / Q000378:metabolism; D016022:Case-Control Studies; D006801:Humans; D007501:Iron; D015227:Lipid Peroxidation / Q000502:physiology; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D010084:Oxidation-Reduction; D018384:Oxidative Stress / Q000502:physiology*; D011336:Probability; D011379:Prognosis; D012016:Reference Values; D018570:Risk Assessment; D012680:Sensitivity and Specificity; D013438:Sulfhydryl Compounds / Q000378:metabolism; D014443:Tyrosine / Q000031:analogs & derivatives* / Q000378:metabolism; D001749:Urinary Bladder Neoplasms / Q000175:diagnosis* / Q000378:metabolism
chemical_list: D014408:Biomarkers, Tumor; D001798:Blood Proteins; D013438:Sulfhydryl Compounds; C002744:3-nitrotyrosine; D014443:Tyrosine; D007501:Iron