The effect of polyglycoside of Tripterygium wilfordii Hook. f. (TWP) on NO production in mouse peritoneal M was studied. The results indicated that TWP at 2.0 and 4.0 mg·L 1 (in vitro) and 15 and 60 mg·kg 1 (ig) reduced the NO 2 - production induced by lipopolysaccharide(LPS) 10 mg·L 1 and interferon γ(IFN γ) 150 kU·L 1 in cultured peritoneal M obtained from C57BL/6 mice. Concanavalin A(Con A) stimulated M produced more NO 2 - than static M and the N...