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The Influence of Race on the Fibrinolytic Activity-A Preliminary Study

種族對纖維蛋白溶解活力的影響-一個初步之研究

摘要


在4個健康美國人(平均年齡25.3歲,標準差6.4)及7個健康中國人(平均年齡24.6歲,標準差0.5)中,測定血中之葡萄糖、膽固醇及三酸甘油酯濃度,同時並作靜脈阻塞試驗(VOT)。在作VOT之前及後,並測定其組織胞漿原致活劑(tPA),胞漿原致活劑抑制劑(PAI),以及優球蛋白溶解時間(ELT)。在所有測定之參數中,中國人及美國人並無統計學上之差異。但中國人在作了VOT後,tPA顯著地增加,而美國人則沒有。雖然在美國人中,tPA在作了VOT後沒有顯著增加,但比較VOT前後tPA,PAI及ELT所改變之幅度,在中國人及美國人中卻無明顯差異。從此研究中,我們認為美國人患血栓病之比率所以高的一個原因,可能是因為其纖維蛋白溶解活力,在壓力狀態時不能正常作用之故。

並列摘要


Blood glucose, cholesterol, triglyceride (TG) and venous occlusion test (VOT) were determined in 4 Americans (mean age 25.3 years, SD 6.4) and 7 Chinese healthy subjects (mean age 24.6 years, SD 0.5). Tissue plasminogen activator (tPA), plasminogen activator inhibitor (PAI) and euglobulin lysis time (ELT) were determined before and after VOT. The means of all the parameters were not significantly different between the Americans and the Chinese. tPA increased after VOT in the Chinese but not the Americans. Although the increase of tPA after venous-occlusion-stimulation was not good in the Americans, the amplitudes of tPA, PAI and ELT did not change significantly after VOT between the Americans and the Chinese. From the study, it is suggested that the impaired fibrinolytic activity under stress conditions in Americans may be one of the causes for the higher prevalence rate of TED in comparison with Chinese.

並列關鍵字

Fibrinolytic activity Americans Chinese Race

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