Effects of occupational radiation exposure on peripheral blood lymphocyte count and cell cycle in logging workers / 中国辐射卫生
Chinese Journal of Radiological Health
; (6): 28-32, 2024.
Article
in Zh
| WPRIM
| ID: wpr-1012766
Responsible library:
WPRO
ABSTRACT
Objective To investigate the effects of prolonged low-dose neutron-γ radiation on peripheral blood lymphocytes of logging workers. Methods The health information of workers in a logging company was collected by on-site blood sample collection and questionnaire survey. Individual doses of γ and neutron radiation were recorded using LiF elements and CR-39, respectively. Lymphocyte count in peripheral blood was measured by blood cytometer. Cell cycle and cyclins were detected by flow cytometry. Results The annual dose of some logging workers exceeded 5 mSv. Lymphocyte counts showed a difference of 15% between the group exposed to the lowest annual dose of 0–1 mSv (mean: 2.45 × 109/L) and the group exposed to the highest annual dose of 5–25 mSv (mean: 2.08 × 109/L). In comparison to pre-shift workers, logging workers exhibited a G1-phase arrest in the lymphocyte cycle, along with increased expression of cyclins p21 and CDK2. Conclusion Prolonged exposure to low-dose neutron-γ radiation leads to reduced lymphocyte counts as well as changes in lymphocyte cycle and cyclin expression.
Full text:
1
Index:
WPRIM
Language:
Zh
Journal:
Chinese Journal of Radiological Health
Year:
2024
Type:
Article