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进行性系统性硬化症患者食管NOS表达、血清NO含量与食管动力变化研究

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摘要 目的:探讨一氧化氮(NO)在进行性系统性硬化症(PSS)发病机制中的作用.方法:12例PSS患者和12名健康受试者纳入本研究.应用PCpolygrafHR高分辨多通道测压系统检测PSS患者的食管下段括约肌压力(LESP)、食管下段括约肌长度(LESL)及食管远段蠕动幅度等动力参数;应用DigitrapperMKⅢ动态食管内pH监测仪检测其24h食管内pH各项参数;应用NADPH-d组化染色观察食管一氧化氮合酶(NOS)表达;应用硝酸还原酶法测定血清NO含量.结果:PSS患者的LESP显著低于对照组[(1.21±0.11)kpavs(2.38±0.16)kpa,P<0.05)];75%的PSS有一过性LES松弛;PSS的食管下段蠕动幅度明显低于对照组[(5.18±1.04)kpavs(14.93±2.12)kpa,P<0.01];PSS的食管内24hpH值显著高于对照组;PSS血清NO含量显著高于对照组[(106.47±18.21)μmol/Lvs(82.32±15.3)μmol/L,P<0.01].其食管黏膜NOS呈强阳性反应,而对照组呈阴性反应.结论:内源性NO可能参与PSS食管动力功能紊乱的发病.
出处 《世界华人消化杂志》 CAS 2002年第9期1074-1075,共2页 World Chinese Journal of Digestology
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