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间歇低氧对大鼠血管内皮细胞生长因子表达的影响
引用本文:张伟三,张蔷,王琳,徐晏,张蕴.间歇低氧对大鼠血管内皮细胞生长因子表达的影响[J].西南科技大学学报(哲学社会科学版),2009,7(2):60-61.
作者姓名:张伟三  张蔷  王琳  徐晏  张蕴
作者单位:天津医科大学总医院,老年医学研究室,300052  
基金项目:天津医科大学科研基金 
摘    要:目的观察慢性间歇低氧对大鼠血管内皮细胞生长因子(VEGF)表达的影响。方法72只雄性Wistar大鼠随机均分为间歇低氧组(IH组)、实验对照组(SC组)和空白对照组(UC组)。IH组大鼠循环给予充入氮气和压缩空气(每一次循环60秒,使舱内最低氧浓度达4%~6%,然后恢复至21%,8h/d);向SC组舱内循环充入压缩空气,UC组不予任何干预。应用免疫组化法(ELASA)检测各组大鼠分别在3,6,9周末血清VEGF的表达水平。结果IH组大鼠3、6、9周VEGF表达均增加,并且随间歇低氧时间的延长而VEGF水平逐渐升高,从第3周(193.16±102.13)pg/ml]开始高于SC组(154.08±89.79)pg/ml]和UC组(118.13±64.26)pg/ml]水平(P〈0.05,P〈0.01),第9周末IH组(256.15±113.58)pg/ml]显著高于SC组(154.36±90.32)pg/ml](P〈0.01),两组均明显高于UC组(P〈0.05),IH组大鼠VEGF水平与间歇低氧时间呈正相关(P〈0.05)。结论慢性间歇低氧可以诱导大鼠VEGF表达增强,血清VEGF表达增强与血管内皮功能受损有关,提示VEGF对慢性间歇低氧有内皮保护作用。

关 键 词:血管内皮细胞生长因子  间歇低氧呼吸睡眠暂停  大鼠

Effects of intermittent hypoxia on the expression of VEGF in rats
ZHANG Weisan,ZHANG Qiang,WANG Lin,XU Yan,ZHANG Yun.Effects of intermittent hypoxia on the expression of VEGF in rats[J].Journal of Southwest University of Science and Technology,2009,7(2):60-61.
Authors:ZHANG Weisan  ZHANG Qiang  WANG Lin  XU Yan  ZHANG Yun
Institution:ZHANG Weisan,ZHANG Qiang,WANG Lin,XU Yan,ZHANG Yun.Department of Geriatrics,General Hospital of Tianjin Medical University,Tianjin 300052,China.
Abstract:Objective To observe the expression of vascular endothelial growth factor(VEGF) induced by chronic in-termittent hypoxia(CIH) in rats.Methods Seventy-two male Wistar rats were divided into three groups:intermittent hy-poxia group(IH),sham control group(SC),and unhandled control group(UC).Infusion of nitrogen for 30 seconds was fol-lowed by infusion of compressed air for 30 seconds into the exposure chambers.When ambient oxygen concenyration reached the nadir of 4%-6%,it was retunred to 21%.IH rats were subj...
Keywords:Vascular endothelial growth factor  Intermittent hypoxia  Sleep apnea  Rats  
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