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Lactate dehydrogenase enzyme activity of HepG2 (1) and GAS (2) cells after 24 h treatment with different concentrations of extracts (LDH assay): a B. correifolia; b B. verbascifolia; c B. fagifolia; d B. intermedia; negative control—NC (PBS); positive control—PC (1 % Triton 100×) and solvent (SV) groups. The results represent mean values ± SD of independent cultures in triplicate. Asterisk values differ significantly from the negative control group by ANOVA and Tukey test (p ≤ 0.05)
