RESUMO
Adverse drug reactions to anti-TB drugs (ADR) are found in 6-20% of patients and have various clinical manifestations and are detected in the lymphocyte stimulation test (LST), recorded by the incorporation on H3 thymidine, but nowadays it has significant limitations. We used LST with WST-1 reagent to detect ADR to the main 1-st and 2-nd line antituberculosis drugs in 11 tuberculosis patients who had ADR (6 - hepatotoxic reaction, 3 - blood eosinophilia and 2 - with joint pain syndrome). 6 people with tuberculosis contacts made up the control group. LST evaluation with WST-1 showed that in patients with a hepatotoxic reaction, the SI index was>2 and exceeded the values in the control group (3.28±0.59, 95% CI-1.16 and 0, 74±0.16, 95% CI - 0.31, respectively) upon stimulation of cell cultures with rifampicin alone but not with other drugs. Cell cultures stimulated with the PHA mitogen have SI >2 in ADR patients (mainly with hepatotoxic reactions). Control group SI was <2 (4,93±0.53, 95% CI - 1, 04 and 1.97±0.3, 95% CI - 0.59, respectively). We have not detected PPD-L cell cultures stimulation with WST-1 reagent both in the group of patients with ADR and the control group. In patients with eosinophilia and joint pain syndrome SI was low for all studied drugs and did not differ from the control group. The sensitivity of the LST test with WST-1 reagent is not sufficient to determine ADR to anti-TB drugs.
