Panax Notoginseng flower saponins (PNFS) inhibit LPS-stimulated NO overproduction and iNOS gene overexpression via the suppression of TLR4-mediated MAPK/NF-kappa B signaling pathways in RAW264.7 macrophages. - Peng XX; Zhang SH; Wang XL; Ye TJ; Li H; Yan XF; Wei L; Wu ZP; Hu J; Zou CP; Wang YH; Hu XD (Chinese medicine, 2015)