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单肺通气对大鼠肺组织结构、细胞凋亡的影响及机制探讨 被引量:3

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摘要 目的观察单肺通气对大鼠肺组织细胞凋亡的影响,并探讨其机制。方法将42只雄性SD大鼠随机分成单肺通气(OLV)组(A组)18只、双肺通气组(B组)18只及对照组(C组)6只。C组自主呼吸;A组采用右侧OLV,其中6只(A1组)OLV 0.5 h、恢复通气0.5 h,6只(A2组)OLV 1 h、恢复通气0.5 h,6只(A3组)OLV 1.5 h、恢复通气0.5 h;B组采用双肺通气,其中通气1(B1组)、1.5(B2组)、2 h(B3组)各6只。取各组大鼠左侧肺组织,HE染色观察肺组织病理改变,TUNEL法检测细胞凋亡,Western blot法检测Caspase-3蛋白。结果与C组相比,A、B组大鼠肺泡充血水肿,肺间质增厚,随通气时间延长损伤逐渐加重,且A组变化更为明显。A1组大鼠肺组织细胞凋亡指数(AI)及Caspase-3蛋白相对表达量分别为0.13%±0.08%、0.22±0.02,A2组为6.17%±0.75%、0.34±0.01,A3组为16.00%±1.10%、0.69±0.01,B1组为0.15%±0.10%、0.22±0.01,B2组为0.18%±0.08%、0.23±0.01,B3组为4.83%±0.75%、0.28±0.01,C组为0.12%±0.08%、0.21±0.02;A2、A3、B3组与C组比较,P均<0.05;A2组与B2组、A3组与B3组比较,P均<0.05。结论单肺通气可导致肺组织结构的改变、细胞凋亡增加,可能与Caspase-3表达上调有关。
出处 《山东医药》 CAS 2012年第34期25-27,共3页 Shandong Medical Journal
基金 广西自然科学基金资助项目(NO0832232)
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参考文献10

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共引文献19

同被引文献36

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