Yayi Yuan, Xiaoming Liu, Yuyang Dong, Ruifeng Zhang, Qianqian Meng, Xuhong Dang, Lin Li, Yue Ren, Juancong Dong

Association between single nucleotide polymorphism of DNA damage repair related genes and radiosensitivity in healthy individuals

  • Public Health, Environmental and Occupational Health
  • Radiology, Nuclear Medicine and imaging
  • General Medicine
  • Radiation
  • Radiological and Ultrasound Technology
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Abstract Radiosensitivity in humans can influence radiation-induced normal tissue toxicity. As radiosensitivity has a genetic predisposition, we aimed to investigate the possible association between four single nucleotide polymorphism (SNP) sites and the radiosensitivity in healthy people. We genotyped four selected SNPs: TRIP12 (rs13018957), UIMC1 (rs1700490) and POLN (rs2022302), and analyzed the association between SNP and the radiosensitivity in healthy people. We distinguished radiosensitivity by chromosome aberration analysis in healthy individuals. Healthy donors were classified into three groups based on chromosomal aberrations: resistant, normal and sensitive. Using the normal group as a reference, the genotypes CT and CC of rs13018957 (CT: OR = 26.13; CC: OR = 15.97), AA of rs1700490 (OR = 32.22) and AG of rs2022302 (OR = 13.98) were risk factors for radiosensitivity. The outcomes of the present study suggest that four SNPs are associated with radiosensitivity. This study lends insights to the underlying mechanisms of radiosensitivity and improves our ability to identify radiosensitive individuals.

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