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Life expectancy in central-Eastern European countries is more than 10 years lower compared with Northern or Western countries which could be the result of complex factors including genetics, nutrition and life style. We conducted a molecular epidemiological study with the aim of investigating links between DNA instability, genetic polymorphisms in nucleotide excision repair genes and ageing. Two groups—151...
Mitochondrial DNA (mtDNA) is an important contributor to the ATP-generating oxidative phosphorylation complex. Single nucleotide mutations in mitochondrial genes involved in ATP synthesis result in a broad range of diseases. Leber optic atrophy and Leigh's syndrome are two such diseases arising from point mutations in the mitochondrial genome. Here, ionizing radiation, phleomycin and mitomycin C (MMC)...
Organic solvents are widely used as diluents or thinners for oil-paints, gasoline and other organic mixtures. We evaluated chromosome aberrations (CAs) in lymphocytes of 200 workers exposed to organic solvents and 200 referents and the influence of polymorphisms in xenobiotic-metabolism (CYP2E1, GSTM1 and GSTT1) and in DNA repair genes (XRCC1 194 Arg/Trp, XRCC1 280 Arg/His, XRCC1 ...
Cell cycle checkpoints are part of the cellular mechanisms to maintain genomic integrity. After ionizing radiation exposure, the cells can show delay or arrest in their progression through the cell cycle, as well as an activation of the DNA repair machinery in order to reduce the damage. The G2/M checkpoint prevents G2 cells entering mitosis until the DNA damage has been reduced. The present study...
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