外周动脉张力测定健康慢性吸烟者吸烟后血管功能急性改变

被引:4
作者
薛超
孙艺红
丁荣晶
傅媛媛
胡大一
机构
[1] 北京大学人民医院心脏中心
关键词
吸烟; 内皮; 顺应性; 细胞黏附分子; 组织型纤溶酶原激活物;
D O I
暂无
中图分类号
R543 [血管疾病];
学科分类号
1002 ; 100201 ;
摘要
目的采用外周动脉张力(PAT)指数评价急性吸烟对健康慢性吸烟者血管内皮功能的影响,同时比较动脉僵硬度的变化,并探讨吸烟对炎症及纤溶系统的急性影响。方法采用内皮功能监测仪EndoPAT2000,测定连续入选的50名健康慢性吸烟者急性吸烟前后PAT指数、增强指数(AI),用酶联免疫方法测定急性吸烟前后血浆可溶性细胞间黏附分子(sICAM)及组织型纤溶酶原激活物(tPA)水平。结果 50名健康慢性吸烟者平均年龄为(35.3±9.7)岁,与吸烟前比较,急性吸烟后PAT指数明显降低(1.87±0.40比1.73±0.28,P=0.004),而AI明显升高(2.94%±21.77%比7.11%±20.65%,P=0.01)。急性吸烟后,血浆sICAM水平上升,但差异无统计学意义[(306.5±76.1)μg/L比(315.7±90.9)μg/L,P=0.402];而血浆tPA水平则明显下降[7.87(5.41~10.08)μg/L比5.77(3.77~9.68)μg/L,P<0.01]。结论急性吸烟可明显损害健康慢性吸烟者血管内皮功能及动脉弹性,并可引起纤溶系统急性改变。
引用
收藏
页码:410 / 413
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