Exposure to diesel exhaust did not aggravate preexisting vasomotor dysfunction, but it did reduce the acute release of endothelial tissue plasminogen activator (P=0.009;

• 吸入汽车废气组没有加重血管舒缩功能障碍，但是减少了内皮组织纤维蛋白溶酶原激活剂的急性释放(P=0.；009;