Schisandrin

Schizandrin is a bio-active isolate of Schisandra chinensis that has been found to act as an agonist of the adiponectin receptor 2 (AdipoR2).(In Vitro):Schisandrin (10-100 μM; pretreated for 2 h) inhibits LPS-stimulated NO production, iNOS protein and mRNA expression in a dose-dependent manner in RAW 264.7 cells.Schisandrin (25-100 μM; pretreated for 2 h) inhibits prostaglandin E2 production, COX-2 protein and mRNA expression in LPS-stimulated RAW 264.7 macrophages.Schisandrin inhibits the SK-HEP-1, SNU-638, and T47D cells proliferation, with IC50s of 42.0, 53.1, and 40.0 μM, respectively.Schisandrin (10-60 μM; 48 h) enhances Doxorubicin -induced apoptosis and selectively reverses MCF-7/DOX resistance.(In Vivo):Schisandrin (10-100 mg/kg; a single i.p.) inhibits acetic acid-induced peritoneal vascular permeability and reduces the carrageenan-induced paw edema of mice.Schisandrin (1-10 mg/kg; a single p.o.) significantly reverses the Scopolamine-induced impairment of spatial memory and passive avoidance response, and enhances tremors induced by Oxotremorine in rats.