Source botanique

Isoforsythiaside, a novel phenylethanoid glycoside isolated from Forsythia suspensa, has antioxidant effect and antibacterial activity, may be as the alternative antioxidants and antibacterial agents from natural origin.

Quercetagetin-7-O-glucoside, a potent inhibitor of beta-glucuronidase and lysozyme release, shows anti-inflammatory activity, can significantly inhibit arachidonic acid release from membranes.

Jervine exhibits cytotoxic activity against human tumor cell lines A549, PANC-1, SW1990 and NCI-H249, it induces COX-2 overexpression in human erythroleukemia cells. Jervine exhibits potent toxic effects against Colorado potato beetle.

Praeruptorin C (Pra-C), one of the principal bioactive components derived from the root of Peucedanum praeruptorum Dunn, has been widely used as an antioxidant and a calcium antagonist to treat diseases, Pra-C partially also protects cortical neurons by inhibiting the expression of GluN2B-containing NMDA receptors and regulating the Bcl-2 family.

Echinatin has significant antioxidant and anti-inflammary activities, it shows strong scavenging activity toward the ABTS + radical, it also inhibits the production of nitric oxide (NO), interleukin-6 (IL-6) and prostaglandin E2 (PGE2) in LPS-induced macrophage cells. Echinatin disturbs the mitochondrial energy transfer reactions and membrane permeability, at a low concentration cause deterioration of respiratory control and oxidative phosphorylation of isolated rat liver mitochondria, inhibits DNP-ATPase activity while stimulating range latent ATPase activity.

Benzoylmesaconine (BEN, an aconitine derivative extracted from heated-Aconiti tuber) induces the generation of CD4+ T cells antagonistic to type 2 T cells (BEN-CD4+ T cells), the combination therapy of IL-12 (an inducer of type 1 T cell responses) and BEN (an inhibitor of type 2 T cell responses) may protect TI-mice from severe HSV-1 infection.