Methods Fourty SD pregnant rats were divided into four groups including the control group,Nw-nitro-L-arginine methylester(L-NAME)+distilled water(DW) group,L-NAME+L-Arginine group and L-NAME+Ganoderma spore(GS) group.

• 方法40只SD妊娠大鼠分为正常对照组、N硝基左旋精氨酸甲酯(L-NAME)+蒸馏水组、L-NAME+精氨酸组、L-NAME+灵芝孢子组。