Expression of γ-H2AX Using Immunofluorescence Assay as an Adaptive Response of PBMC in Radiation Workers at Dharmais Cancer Hospital
Methods: Blood samples from nine radiation workers and nine non-radiation workers were irradiated with doses 0 Gy, 1 Gy, 1.5 Gy, and 2 Gy. Detection of γ-H2AX foci was done by immunofluorescence assay. The mean of γ-H2AX foci was counted in 50 PBMCs per sample. The comparison mean of γ-H2AX foci was analyzed using tindependent test.
Result: Based on the result study, there were no significant differences in the number of γ-H2AX foci without treatment (p = 0.807). The results of study showed that the formation of 2-3 foci per cell after exposure of 2 Gy increases along with the increasing irradiation doses.
Conclusion: The mean of index of γ-H2AX foci in PBMCs within normal limits between non-radiation workers and radiation workers and level of risk DSBs damage is relatively similar after exposure at doses 1 Gy, 1.5 Gy, and 2 Gy.
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