Increased individual chromosomal radiosensitivity of human lymphocytes as a parameter of cancer risk

Dyomina E.A.

Aim: Evaluation of chromosomal radiosensitivity of healthy individuals and determination those with the increased susceptibility to radiogenic cancer. Methods: Cytogenetic examination of radiation induced injuries in lymphocytes of healthy individuals (n = 103) was carried out on the basis of G2-assay. Test system of peripheral blood lymphocytes with metaphase analysis was used. Results: On the basis of the obtained “stage-effect” and “dose-effect” calibrating curves the scheme of cytogenetic examinations of healthy individuals was developed. Analysis of cytogenetic parameters induced by G2 irradiation at 1.5 Gy dose revealed their high interindividual variability. The highest differences were registered for chromatid type aberrations (CV = 42.1%) with the chromatid break predominance in the spectrum (CV = 37.5%). Statistical analysis of the distributions of the obtained individual cytogenetic parameters indicated 12% individuals with increased chromosomal radiosensitivity. Conclusions: Cytogenetic evaluation of individual chromosomal radiosensitivity based on G2-assay has its perspectives in the formation of groups with increased risk of radiogenic cancer developing and its primary prophylactics among healthy population.

No Comments » Add comments
Leave a comment

ERROR: si-captcha.php plugin says GD image support not detected in PHP!

Contact your web host and ask them why GD image support is not enabled for PHP.

ERROR: si-captcha.php plugin says imagepng function not detected in PHP!

Contact your web host and ask them why imagepng function is not enabled for PHP.