Objective: To explore the relationship between polymorphisms of DNA repair gene XRCC1 and susceptibility to radiation injury.
Methods: In 1:1 case-control study, 113 abnormal chromosome workers exposed to ionizing radiation were selected as cases and 113 normal chromosome as controls who matched with case for sex, age (+/- 5 years), nation, type of work, the same or more but in 2 years work length and the same similar levels of the cumulative exposure radiation dose. Genotypes were analysed using PCR based restriction fragment length polymorphism techniques.
Results: The frequency of XRCC1 26304TT allele in case group (18.58%) was significantly higher than that in control group (7.08%), with OR for radiation damage being 3.47 (95% CI 1.43 - 8.44, P < 0.05). No association was observed between XRCC1 G27466A and G28152A and susceptibility to radiation injury.
Conclusion: The mutation of XRCC1 C26304T is related with the susceptibility to radiation injury. The polymorphisms of XRCC1 G27466A and G28152A are not found to have association with abnormal chromosomes.
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