0000000000021769
AUTHOR
R. Bruvere
Chernobyl Clean-Up Workers: 17 Years of Follow-Up in Latvia
About 5000 Latvian inhabitants took part at clean up works after accident on Chernobyl Nuclear Power Plant during 1986–1991. Clinical follow-up programme showed that clean-up workers having higher morbidity rate compare to the general population with prevalence of poly–symptomatic sicknesses caused by depression of immune system. Dose reconstruction made by Electron Paramagnetic Resonance (EPR) indicated underestimation of officially documented doses by factor 2-10. Blood measurement performed by Inductively Coupled Plasma Mass Spectrometry (ICP MS) indicated elevated concentration of lead, cadmium and thorium. It was assumed that toxic compounds, physical stress, incorporated long-lived ra…
Retrospective dosimetry for Latvian workers at Chernobyl.
Between 1986 and 1991 approximately 6500 Latvian inhabitants were recruited for clean-up work at the Chernobyl nuclear power plant. Their absorbed doses are usually unknown, because less than half of them had their external exposure officially documented. Clinical investigations show a high morbidity rate for these clean-up workers when compared with that of the general population. In order to understand the causes of their diseases and the impact of ionising radiation, electron spin resonance (ESR) has been used to measure the absorbed doses in human tooth enamel. The doses estimated by ESR were between two and three times higher than previously documented and are in accord with the result…
Analysis of the Immune Status in Latvian Chernobyl Clean-up Workers with Nononcological Thyroid Diseases
The aim of the present work was to characterize the immune status of 385 individuals who participated in the 1986–90 clean-up work of the after effects of the Chernobyl nuclear power plant explosion. Fifty-nine Chernobyl clean-up workers developed the most common thyroid diseases; euthyroid nodular and diffuse goiter; 47 healthy blood donors were taken as controls. The levels of immunoglobulins (IgA, IgG and IgM), the numbers of peripheral blood leukocytes, lymphocytes, monocytes, T lymphocytes and their subpopulations (CD3+, CD4+, CD8+), B lymphocytes (CD19+), natural killer (NK) cells (CD16+), classical and alternative pathway activity of complement (CH50, APH50), the C3 split product C3d…