He-Ne激光照射大鼠心前区对心肌毛细血管开放率的影响  

Effect on the Ratio of Myocardial Capillary opening by He Ne Laser Irradiation on Precordial Region of Wistar Rat

作　　者：张卫光[1] 陈小迅[1] 田珑[1] 陈莉[1] 买鸿宴[1] 夏家骝[1] 王勉镜[2] 

机构地区：[1]北京大学医学部解剖学系,北京市100083 [2]中国医学科学院中国协和医科大学,北京协和医院激光中心

出　　处：《中国激光医学杂志》2001年第2期111-114,共4页Chinese Journal of Laser Medicine & Surgery

基　　金：国家自然科学基金资助项目! (39470 36 3)

摘　　要：目的　探讨低强度He Ne激光照射大鼠心前区对心肌毛细血管开放情况的影响。方法　雌性Wistar大鼠 6只 ,随机等分为对照组和激光照射组。以 6 0 5J/cm2 的He Ne激光垂直照射激光照射组大鼠心前区 ,每天 1次 ,连续照射 10天。超薄切片透射电镜下观察左心室近心内膜侧、近心外膜侧心肌中直径 <10 μm微血管的开放情况。结果　照射组心肌内层毛细血管开放率 (70 3% )明显高于对照组 (5 5 6 % ) ,P <0 0 5。结论　以剂量为 6 0 5J/cm2 的He Ne激光照射心前区 。Objective In order to research for effect on the ratio of myocardial capillaries opening by He Ne laser irradiation on precordial region of Wistar Rat. Methods With applying electron microscope, we studied the changes of myocardial capillaries opening after He Ne laser with the dose of 60 5 J/cm 2 to irradiate. The rats were divided into control(n=3) and irradiated groups.Results Observingcapillaries (<10 μm)inanteriorwalloftheleftventricle,theratioofcapillaries openinginirradicatedgroup(70 2 6 % )washigherthanincontrolgroup(5 5 5 6 % )intheinternallayerofmyocardium .Conclusions Theresultsindicatedthattheratioofmyocardialcapillaries openingwassignificantlyheightenedbyHe Nelaserirradiation .

关 键 词：激光 毛细血管 大鼠 心脏 

分 类 号：R318.51[医药卫生—生物医学工程]