The regression equation was YF=12.64-0.30XF, correlated coefficient r=-0.67. After adopting L-NAME of 10 mg/kg, there was no linear regression relationship between the blood flow and dose of L-arginine(F=0.13,P=0.72).

• 应用NG -硝基 -左旋精氨酸甲酯10mg/kg后 ；左旋精氨酸的剂量与股骨头血流量无线性回归关系(F=0.；13；P=0