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National Repository of Grey Literature 1 records found  Search took 0.00 seconds. 
Effects of natural substances on DNA damage and repair capacity in colorectal cell lines
 Vodenková, Soňa ; Opattová, Alena ; Čumová, Andrea ; Slíva, D. ; Vodička, Pavel
Colorectal carcinoma)CRC) represents serious ilness with high incidence and mortality worldwide. Generaly, there is a lack of reliable predictive and prognostic biomarkers, implicated late diagnosis. The effectivity of treatment is rather low - about 50%. Main agent used in CRC treatment is 5 fluorouracil (5-FU), alone or in combination with other cytostatics. 5-FU is halogenated pyrimidine, which is or directly incorporated into DNA or disrupts thymidine synthesis in tumour cells. This damage is repaired by base excision repair (BBR) or mismatch repair. The aim of this study is to investigate the effect of 5FU together with extracts of Ganoderma lucidum (GL) and the role of BER in various lines of colorectal cancer cell lines. Results show increased oxidative damage after GL and 5FU+GL treatment and in the same time decrease of DNA repair in colorectal cell lines. This fact could contribute to improve of 5FU efficacy.
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