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HepG2 cells were treated for 48 h with medium supplemented with solvent (ethanol, not exceeding 0.1%) or 0.1, 10 and 50 μmol/L chelidonine. Relative hTERT gene expression as measured by real-time RT-PCR which was calibrated with the constitutive expression of β2-microglobulin gene. hTERT level in control samples was considered as 100%. The values indicated as mean ± SD (n ≥ 6).
