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冠状动脉供血不足与心肌梗死的胸痛症状及心电图变化有时无明显差异.(近来发现血浆肌酸激酶(CK)同功酶MBCK的升高是快速诊断急性心肌梗死的特异性指标.CK分子量约86000道尔顿,它是由M.B两个亚基组成的二聚体;M亚基主要存在于肌肉,B亚基在脑.经电泳分离法,CK同功酶在血浆中分离为BB型、MM型,和MB型.BBCK主要存在于肺、肾、脾脏等器管;MMCK主要存在于骨骼肌;心肌CK含量最高,并且主要为MM和MBCK(MBCK约占CK活性的15-20%);前列腺和
Chest pain symptoms and ECG changes sometimes have no significant difference between coronary insufficiency and myocardial infarction (recently found that elevated plasma creatine kinase (CK) isoenzyme MBCK is a specific indicator of rapid diagnosis of acute myocardial infarction.CK molecular weight of about 86000 Dalton, which is composed of two subunits of MB dimer; M subunit mainly in the muscle, B subunit in the brain.Electrophoresis separation, CK isozyme in the plasma isolated as BB type, MM BMCK mainly exists in the lung, kidney, spleen and other tubes; MMCK mainly exists in skeletal muscle; the highest content of CK in myocardium is mainly MM and MBCK (MBCK accounts for 15-20% of CK activity) Prostate and