冷自體血心臟停搏液對離體兔心肌能量代謝的影響
[Abstract]:In this study, the effects of cold autologous blood cardioplegia, Const (HTK) solution and modified Thomas cardioplegic solution on the content of ATP,ADP,AMP and the degree of mitochondrial damage in isolated rabbit ventricular muscle were compared to explore the protective effect and mechanism of cold autologous blood cardioplegia on myocardium. Sixty healthy New Zealand white rabbits were randomly divided into 3 groups (20 in each group). The model of isolated heart perfusion with Langendorff was established. Cold autologous blood cardioplegia solution, HTK solution and St.Thomas solution were perfused respectively. The content of ATP,ADP,AMP in myocardium was determined by high performance liquid chromatography (HPLC). The degree and score of myocardial mitochondria injury were observed under transmission electron microscope. Before stopping, There was no significant difference in heart rate (HR) and recovery percentage between three groups (p0. 05); A, P 0. 05); A, P 0. 01, P 0. 01). There was no significant difference in the content of AMP between the 3 groups (p0. 05); A, P 0. 05, P 0. 01). The degree of myocardial mitochondrial damage and the score of Flameng in group B and group B were lower than those in group C. The difference was statistically significant (p0.05). Cold autologous blood cardioplegia could increase the content of ATP,ADP in isolated rabbit cardiomyocytes and alleviate the damage of mitochondria of isolated rabbit cardiomyocytes induced by ischemia-reperfusion.
【作者單位】: 重慶醫(yī)科大學(xué)附屬兒童醫(yī)院;重慶醫(yī)科大學(xué)深圳兒童醫(yī)院;
【基金】:重慶醫(yī)科大學(xué)附屬兒童醫(yī)院 重慶醫(yī)科大學(xué)深圳兒童醫(yī)院對本研究的大力資助
【分類號】:R654.2
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