CAJ | 학술논문

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60.5 J/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（55.6%），P＜0.05。结论　以剂量为60.5 J/cm2的He-Ne激光照射心前区，能使心肌毛细血管的开放率明显增高。
목적　탐토저강도He-Ne격광조사대서심전구대심기모세혈관개방정황적영향。 방법　자성Wistar대서6지，수궤등분위대조조화격광조사조。이60.5 J/cm2적He-Ne격광수직조사격광조사조대서심전구，매천1차，련속조사10천。초박절편투사전경하관찰좌심실근심내막측、근심외막측심기중직경＜10 μm미혈관적개방정황。 결과　조사조심기내층모세혈관개방솔（70.3%）명현고우대조조（55.6%），P＜0.05。 결론　이제량위60.5 J/cm2적He-Ne격광조사심전구，능사심기모세혈관적개방솔명현증고。
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/cm2 to irradiate. The rats were divided into control(n=3) and irradiated groups. Results　Observing capillaries (＜10 μm) in anterior wall of the left ventricle, the ratio of capillaries-opening in irradicated group（70.26%） was higher than in control group（55.56%） in the internal layer of myocardium. Conclusions　The results indicated that the ratio of myocardial capillaries-opening was significantly heightened by He-Ne laser irradiation.