The endothelins and Hcy injure the blood endothelial cells, endothelial functional disorder and the decrease of change rate of brachial artery bore induced by reactive hyperemia through the same pathway finally.

• 内皮素与同型半胱氨酸最终通过共同途径损伤血管内皮细胞，内皮功能失调，反应性充血肱动脉内径变化率下降。