Title:Cytotoxicity and Anti-Inflammatory Effects of Polyherbal Formulations, Joint Pain Spl and Rumalaya Forte on Lipopolysaccharide Induced Inflammation in IC-21 Macrophages
Volume: 20
Issue: 3
Author(s): Arunagirinathan Koodalingam*, Arumugam Rajalakshmi and Ezhumalai Parthiban
Affiliation:
- PG & Research Department of Zoology, Sir Theagaraya College, Old Washermenpet, Chennai - 600 021, Tamilnadu,India
Keywords:
Inflammation, herbal formulation, macrophages, free radicals, plant extracts, nitric oxide.
Abstract:
Aim: To test the effectiveness of marketed polyherbal formulations on
lipopolysaccharide-induced inflammatory conditions in macrophages.
Background: Usage of herbal compounds among patients suffering from arthritis and cancer is increasing
every year. Many anti-inflammatory herbal products available in the market should be
screened thoroughly for their possible mechanism of action.
Objective: Joint Pain Spl (JPS) is a polyherbal dietary food supplement composed of 13 herbal
plants, and Rumalaya Forte (RF) is a polyherbal formulation comprising of 6 herbal plants. These
were tested for their cytotoxicity, as well as antioxidant and anti-inflammatory activities in LPS
treated IC-21 peritoneal macrophages.
Methods: Commercially available JPS and RF powder was used to prepare the extract. The aqueous
and methanol extracts were quantified for the presence of phenolic and flavonoid compounds
and confirmed with HPLC. In vitro DPPH free scavenging activity was performed. Cytotoxicity
was tested by MTT assay. Anti-inflammatory activity was tested using lipopolysaccharide-stimulated
IC-21 peritoneal macrophage cells.
Results: The phytochemical screening showed the presence of phenolic and flavonoid compounds
in JPS and RF. The aqueous and methanol extracts of JPS and RF possesses significant DPPH free
radical scavenging activity. MTT assay revealed that 90.64% (aqueous extract) and 92.21%
(methanol extract) of exposed macrophages are viable even after 24h exposure of maximal tested
concentrations of herbal formulations. Pre-treatment of JPS and RF on LPS induced IC-21
macrophages showed a reduction in nitric oxide production (maximal 79.95%) and a high level of
superoxide anion scavenging activity (maximal 82.5%) over control.
Conclusion: The two tested polyherbal formulations, such as JPS and RF possess anti-inflammatory
activity by modulating free radical generation in IC-21 macrophages. Thus the presence of the
phenolic and flavonoid compounds may contribute to the antioxidant activity.