Anti-inflammatory Effects of Allium victorialis Extract in Lipopolysaccharide Exposed Rats and Raw 264.7 Cells
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This study examined the inflammatory reaction effects of Allium victorialis var. platyphyllum in vivo at the time of a lipopolysaccharide (LPS) shock in rats, and in vitro in cultured Raw 264.7 cells, with the aim of facilitating the development of a new anti-inflammatory medicine. Plasma concentrations of interleukin (IL)-1β, IL-6, tumor necrosis factor α (TNF-α), and IL-10 in rats peaked 5 h after LPS treatment in all experimental groups, with those of IL-1β, IL-6, and TNF-α being significantly lower in all animals treated with A. victorialis than in the control group at that time point. Conversely, the plasma concentration of IL-10 was higher in the rats treated with 300 ㎎/㎏ A. victorialis extract than in the control group at both 2 and 5 h after LPS treatment. Concentrations of IL-1β and IL-6 in the liver of rats treated with A. victorialis extract were significantly lower than those of the saline-treated control group. However, the liver concentrations of TNF-α and IL-10 did not vary significantly between the four animal groups. Similarly, concentrations of IL-1β, IL-6, and TNF-α obtained from cultured Raw 264.7 macrophages were lower in all of the A.-victorialis-extract-treated groups than in the control group. Although the concentration of IL-10 in the A.-victorialis-extract-treated groups tended to be greater than in the control group, the differences between groups were not statistically significant. Together the findings of this study suggest that A. victorialis var. platyphyllum contains functional substances that are involved in inflammatory reactions.
Abstract
This study examined the inflammatory reaction effects of Allium victorialis var. platyphyllum in vivo at the time of a lipopolysaccharide (LPS) shock in rats, and in vitro in cultured Raw 264.7 cells, with the aim of facilitating the development of a new anti-inflammatory medicine. Plasma concentrations of interleukin (IL)-1β, IL-6, tumor necrosis factor α (TNF-α), and IL-10 in rats peaked 5 h after LPS treatment in all experimental groups, with those of IL-1β, IL-6, and TNF-α being significantly lower in all animals treated with A. victorialis than in the control group at that time point. Conversely, the plasma concentration of IL-10 was higher in the rats treated with 300 ㎎/㎏ A. victorialis extract than in the control group at both 2 and 5 h after LPS treatment. Concentrations of IL-1β and IL-6 in the liver of rats treated with A. victorialis extract were significantly lower than those of the saline-treated control group. However, the liver concentrations of TNF-α and IL-10 did not vary significantly between the four animal groups. Similarly, concentrations of IL-1β, IL-6, and TNF-α obtained from cultured Raw 264.7 macrophages were lower in all of the A.-victorialis-extract-treated groups than in the control group. Although the concentration of IL-10 in the A.-victorialis-extract-treated groups tended to be greater than in the control group, the differences between groups were not statistically significant. Together the findings of this study suggest that A. victorialis var. platyphyllum contains functional substances that are involved in inflammatory reactions.
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