天津医药 ›› 2015, Vol. 43 ›› Issue (2): 117-120.doi: 10.11958/j.issn.0253-9896.2015.02.002

• 缺氧与器官损伤 • 上一篇    下一篇

间歇低氧合并肺气肿大鼠模型肝脏氧化应激及凝血功能的研究

马懿江1,何庆2,胡志东1,冯靖3   

  1. 1. 天津医科大学总医院医学检验科
    2. 天津医科大学总医院内分泌科
    3. 天津医科大学总医院呼吸科
  • 收稿日期:2014-10-09 修回日期:2014-11-02 出版日期:2015-02-15 发布日期:2015-02-27
  • 通讯作者: 马懿江 E-mail:bai7300@163.com
  • 作者简介:马懿江(1987), 女, 硕士在读, 主要从事睡眠低氧性疾病研究
  • 基金资助:
    国家自然科学基金资助 (81270144,30800507,81170071)

Hepatic oxidative stress and coagulation status in rat model of pulmonary emphysema combined with intermittent hypoxia

Yi-Jiang MAHE Qing2, 3,FENG Jing4   

  • Received:2014-10-09 Revised:2014-11-02 Published:2015-02-15 Online:2015-02-27
  • Contact: Yi-Jiang MA E-mail:bai7300@163.com

摘要: 摘要: 目的 建立肺气肿合并间歇低氧 (IH) 的重叠综合征 (OS) 大鼠模型, 探讨 OS 大鼠肝脏炎性损伤及其凝血功能的变化。方法 将 60 只雄性 Wistar 大鼠随机分成正常组 (A 组)、 IH 组 (B 组)、 肺气肿组 (C 组) 和 IH 合并肺气肿组 (D 组)。通过对大鼠进行 16 周的熏烟暴露造成大鼠肺气肿; 从 13 周开始, 同时施加程控预制的间歇低氧/再氧合 (IH/ROX) 处理对大鼠进行 IH 暴露 4 周。暴露结束后取各组大鼠肺和肝脏组织于光镜下观察并计算肝脏炎性损伤病理评分。取肝组织匀浆采用 ELISA 方法测定其超氧化物歧化酶 (SOD) 活性、 过氧化氢酶 (CAT) 活性和丙二醛(MDA) 浓度。检测血浆纤维蛋白原 (FIB), 血浆因子 FⅧ促凝活性 (FⅧ:C)、 血管性血友病因子抗原 (vWF:Ag) 和抗凝血酶活性 (AT:A) 水平。结果 D 组肝脏炎性损伤病理评分和凝血因子 FIB、 FⅧ:C、 vWF:Ag 水平均高于 A、 B、 C 组,而 SOD 和 CAT 活性以及 AT:A 水平低于其他 3 组 (均 P < 0.05)。FIB、 vWF:Ag、 FⅧ:C、 AT:A 与 SOD 呈明显相关 (r 分别为-0.905、 -0.941、 -0.946 和 0.817, 均 P < 0.01)。结论 OS 动物模型下 IH 和肺气肿在导致氧化应激和高凝状态上具有一定叠加效应, 可引起更强的肝脏炎症反应和血栓前状态。

关键词:  , 肺气肿; 间歇低氧; 氧化应激; 超氧化物歧化酶; 过氧化氢酶; 丙二醛; 凝血因子

Abstract: : Objective To establish the rat overlap syndrome (OS) model of intermittent hypoxia (IH) combined with pulmonary emphysema and to explore its connection with hepatic oxidative stress, inflammatory status in the live and coagu⁃ lation profile. Methods Male Wistar rats (n=60) were randomly divided into four groups: control group (A), IH group (B), pulmonary emphysema group (C) and OS group (D). The rat model of pulmonary emphysema was established by exposing rats in smoke for 16 weeks. From the 13th week, pre-programmed intermittent hypoxia/re-oxygenation (IH/ROX) exposure was given in the meantime of smoke exposure in OS group. Liver tissues were sectioned or triturated for pathological scoring or for detecting expression levels of superoxide dismutase (SOD), catalase (CAT) and malondialdehyde (MDA) respectively. Se⁃ rum levels of coagulant/anticoagulant factors such as antithrombin (AT), fibrinogen (FIB), von Willebrand factor(vWF) and Factor Ⅷ (FⅧ) were also evaluated using biochemistry analysis. Results The levels of pathological scores and coagulant factors(FIB, FⅧ:C and vWF:Ag)were significantly higher in group D than those in group A, B and C. The values of SOD, CAT and AT were significantly lower in group D than those in other three groups. Serum levels of FIB, vWF:Ag, FⅧ:C and AT:A correlated with SOD (r equal to -0.905、 -0.941、 -0.946 and 0.817 respective, P<0.01) . Conclusion In rat overlap syndrome when IH combined with pulmonary emphysema, hepatic inflammation and coagulability present mutual promotion effect and produce a more significant liver-derivative inflammatory and prothrombotic status.

Key words: Key words: pulmonary emphysema, intermittent hypoxia, oxidative stress, superoxide dismutase, catalase, malondialde? hyde, blood coagulation factors