Research Article

In Vitro and Randomized, Double‐Blind, Placebo‐Controlled Trial to Determine the Efficacy and Safety of Nine Antiacne Medicinal Plants

Figure 5

Dose-dependent inhibition of LPS-mediated production of nitric oxide (NO) in LPS-treated THP-1 cells by Saponaria officinalis (SO) and Inula helenium (IH) extracts. For each concentration treatment, the level of NO release is represented as a percentage of the control set at 100%. Values represent means ± SD ( significant as compared to LPS alone) of three independent experiments carried out in triplicates.