Anti-Inflammatory Properties of Root Extract and Its Isolated Homoisoflavonoid () Are Mediated by Modification on Calcium Signaling.

is a medicinal plant used as anti-rheumatic and anti-inflammatory herbal remedy in Iraqi-Kurdistan. The aim of this study was to evaluate the anti-inflammatory activity of its extract and the isolated homoisoflavonoid () by studying the Ca-dependent NF-kB pathway. Nuclear translocation of p65 NF-kB subunit, as parameter of NF-kB activation, was visualized in human leukemic monocytes by immunofluorescence and Western blot analyses, after cell treatment with root extract or followed by Lipopolysaccharide stimulation. In parallel, Ca signals responsible for NF-kB activation and levels of inflammatory cytokines were investigated. LPS-induced p65 translocation was evident in monocytes and both treatments, in particular that with , were able to counteract this activation. Intracellular Ca oscillations were halted and the cytokine release reduced. These results confirm the traditional anti-inflammatory efficacy of and identify one of the molecules in the extract which appears to be responsible of this action.