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題 名 | Hyperhomocysteinemia Does Not Perturb Protein C and S Activity in Patients with Cerebral Ischemia=腦缺血患者高半胱胺酸血症並不干擾蛋白質C和蛋白質S之活性 |
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作 者 | 陳偉熹; 高怡芬; 藍旻瑜; 張永義; 賴向榮; 陳順勝; 劉家壽; | 書刊名 | Acta Neurologica Taiwanica |
卷 期 | 12:2 2003.06[民92.06] |
頁 次 | 頁75-80 |
分類號 | 414.7 |
關鍵詞 | 腦缺血; 高半胱胺酸血症; 蛋白質C; 蛋白質S; Homocysteine; Protein C; Protein S; Cerbral ischemia; |
語 文 | 英文(English) |
英文摘要 | Homocysteine is an independent risk factor for vascular thrombosis involving the coagulation cascades and vascular wall. An increase of homocysteine is known to perturb the protein C anticoagulant system by generating activated protein C resistance or suppressing thrombomodulin. Its effect to protein C and S activity is rarely mentioned in stroke patients. In this study, we examined the relation between plasma homocysteine level and protein C or S activity in cerebral ischemia patients. There were 27.7% patients to have plasma homocysteine levels over 15 µM/L. The plasma homocysteine levels were significantly higher in hypertensive (p = 0.004) and male (p = 0.024) patients respectively. Hyperhomocysteinemia is not associated with the change of protein C or S activity. There was no correlation between plasma homocysteine levels and protein C or S activity. These findings did not change in relating to the size of infarct. Therefore, it is possible that hyperhomocysteinemia does not perturb protein C or S activity in cerebral ischemia subjects. |
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