摘要
作者用硝酸镧作为超微结构探针,对犬晕厥心肌和梗塞心肌的细胞膜性结构通透性进行对比研究.结果表明:晕厥心肌可见线粒体肿胀和空泡形成,细胞内仅有少量镧颗粒沉着,细胞膜、线粒体膜、溶酶体膜等膜性结构完整.梗塞心肌可见大量镧颗粒通过破损的胞膜沉积于胞浆和线粒体内.说明晕厥心肌发生过程中膜性结构仍保持其完整性.
A contrastive study was performed of the permeability of cell membranous structures
in canine stunned myocardium and infarct myocadium using colloidal lanthanum nitrate as an
ultrastructure probe.Stunned myocardium was characterized by mitochondrial
swelling,vacuolar formation,a very small amount of lanthanum granule deposit inside cells and
intact structure of such membranes as cell membrane,mito- chondrial membrane and
lysosome membrane. Infarct myocardium was characterized by large number of lan-thanum
granules passing through ruptured cell membrane and deposited in cytoplasm and
mitochondria.These results suggested that during the occurrence of stunned myocardium
membranous structure had main-tained intactness.
出处
《第四军医大学学报》
1995年第3期188-190,共3页
Journal of the Fourth Military Medical University
关键词
晕厥
心肌
硝酸镧
犬
细胞膜性结构
stunned myocardium
colloidal
lanthanum nitrate
plasma membrane
dog