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Table 2 Cytotoxicity of the Rhodomyrtus tomentosa leaves (RTL) extract on MAC-T cells as determined by a LDH assay

From: Evaluation of a Rhodomyrtus tomentosa ethanolic extract for its therapeutic potential on Staphylococcus aureus infections using in vitro and in vivo models of mastitis

Concentration (µg/mL) % cytotoxicity of antibacterial agentsa
R. tomentosa extract Rhodomyrtone Pirlimycin
1 6.2 ± 1.4 0.2 ± 0.7 11.5 ± 1.4
2 6.9 ± 0.5 0.2 ± 0.2 14.4 ± 3.2
4 10.5 ± 0.6 0.2 ± 0.2 16.2 ± 1.3
8 10.9 ± 1.1 0.3 ± 0.5 18.9 ± 0.9
16 12.1 ± 0.04 0.4 ± 0.1 20.8 ± 0.5
32 12.7 ± 0.1 0.4 ± 0.3 23.5 ± 1.9
64 14.5 ± 1.8 42.2 ± 0.6 26.6 ± 3.0
128 16.4 ± 3.2 81.9 ± 3.2 28.3 ± 2.7
  1. aThe % cytotoxicity was calculated as described in “Materials and methods” section. Values are means of three independent experiments with standard deviations. All compounds were diluted and tested in presence of 3.2% DMSO (final concentration).